fbpx
Wikipedia

Adenoviridae


Adenoviruses (members of the family Adenoviridae) are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double-stranded DNA genome.[2] Their name derives from their initial isolation from human adenoids in 1953.[3]

Adenoviruses
Transmission electron micrograph of two adenovirus particles
Virus classification
(unranked): Virus
Realm: Varidnaviria
Kingdom: Bamfordvirae
Phylum: Preplasmiviricota
Class: Tectiliviricetes
Order: Rowavirales
Family: Adenoviridae
Genera
Adenovirus D26 structural model at atomic resolution[1]

They have a broad range of vertebrate hosts; in humans, more than 50 distinct adenoviral serotypes have been found to cause a wide range of illnesses, from mild respiratory infections in young children (known as the common cold) to life-threatening multi-organ disease in people with a weakened immune system.[2]

Virology edit

Classification edit

This family contains the following genera:[4]

Diversity edit

In humans, currently there are 88 human adenoviruses (HAdVs) in seven species (Human adenovirus A to G):[5]

  • A: 12, 18, 31
  • B: 3, 7, 11, 14, 16, 21, 34, 35, 50, 55
  • C: 1, 2, 5, 6, 57[6]
  • D: 8, 9, 10, 13, 15, 17, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 36, 37, 38, 39, 42, 43, 44, 45, 46, 47, 48, 49, 51, 53, 54, 56,[7] 58, 59, 60, 62, 63,[8] 64, 65, 67, 69,[9] 70, 71, 72, 73, 74, 75
  • E: 4
  • F: 40, 41[10]
  • G: 52[11]

Different types/serotypes are associated with different conditions:[12]

All these types are called Human mastadenovirus A–G by the ICTV, because all are members of the genus Mastadenovirus.

Structure edit

 
The structure of adenovirus. 1 = penton capsomers, 2 = hexon capsomers, and 3= viral genome (linear dsDNA)

Adenoviruses are medium-sized (90–100 nm).[2] The virions are composed of one linear piece of double-stranded DNA inside an icosahedral capsid. 240 hexon proteins make up the bulk of the capsid, while twelve penton bases cap the icosahedron's corners. The penton bases are associated with protruding fibers that aid in attachment to the host cell via the receptor on its surface.[14]

In 2010, the structure of the human adenovirus was solved at the atomic level, making it the largest high-resolution model ever. The virus is composed of around 1 million amino acid residues and weighs around 150 MDa.[15][16]

Genome edit

 
Schematic diagram of the linear adenovirus genome, showing Early genes (E) and Late genes (L).

The adenovirus genome is linear, non-segmented double-stranded (ds) DNA that is between 26 and 48 Kbp.[2] This allows the virus to theoretically carry 22 to 40 genes. Although this is significantly larger than other viruses in its Baltimore group, it is still a very simple virus and is heavily reliant on the host cell for survival and replication. The genes of adenoviruses can generally be divided into well-conserved sets of transcription units with six early transcription units (E1A, E1B, E2A, E2B, E3 and E4) and one late transcription unit ranging from L1-L5. In addition, adenoviruses also contain two intermediate transcription units named XI and IVa2. To increase the viral gene economy, adenoviruses accommodate genes on both strands of its dsDNA meaning that most of its genome is utilized for coding proteins.[17] An interesting feature of this viral genome is that it has a terminal 55 kDa protein associated with each of the 5' ends of the linear dsDNA. These are used as primers in viral replication and ensure that the ends of the virus' linear genome are adequately replicated.[citation needed]

Replication edit

Adenoviruses possess a linear dsDNA genome and are able to replicate in the nucleus of vertebrate cells using the host's replication machinery.[2] Entry of adenoviruses into the host cell involves two sets of interactions between the virus and the host cell.[2] Most of the action occurs at the vertices. Entry into the host cell is initiated by the knob domain of the fiber protein binding to the cell receptor.[2] The two currently established receptors are: CD46 for the group B human adenovirus serotypes and the coxsackievirus/adenovirus receptor (CAR) for all other serotypes.[2] There are some reports suggesting MHC molecules and sialic acid residues functioning in this capacity as well. This is followed by a secondary interaction, where a motif in the penton base protein (see capsomere) interacts with an integrin molecule. It is the co-receptor interaction that stimulates entry of the adenovirus. This co-receptor molecule is αV integrin. Binding to αv integrin results in endocytosis of the virus particle via clathrin-coated pits. Attachment to αV integrin stimulates cell signaling and thus induces actin polymerization, which facilitates clathrin-mediated endocytosis, and results in virion's entry into the host cell within an endosome.[18]

Once the virus has successfully gained entry into the host cell, the endosome acidifies, which alters virus topology by causing capsid components to disband. The capsid is destabilized and protein VI, which is one of the capsid constituents (see Adenovirus genome) is released from it.[19] Protein VI contains an N-terminal amphiphatic alpha-helix, a helical domain that exhibits both hydrophobic and hydrophilic properties. This amphipathic helix enables the binding of protein VI to the endsomal membrane leading to a severe membrane curvature that ultimately disrupts the endosome.[20] These changes, as well as the toxic nature of the pentons, destroy the endosome, resulting in the movement of the virion into the cytoplasm.[2] With the help of cellular microtubules, the virus is transported to the nuclear pore complex, whereby the adenovirus particle disassembles. Viral DNA is subsequently released, which can enter the nucleus via the nuclear pore.[21] After this the DNA associates with histone molecules already present in the nucleus, which allows it to interact with the host cell transcription machinery.[22] Then, viral gene expression can occur, without integrating the viral genome into host cell chromosomes,[23] and new virus particles can be generated.

The adenovirus life cycle is separated by the DNA replication process into two phases: an early and a late phase.[2] In both phases, a primary transcript that is alternatively spliced to generate monocistronic mRNAs compatible with the host's ribosome is generated, allowing for the products to be translated.[citation needed]

The early genes are responsible for expressing mainly non-structural, regulatory proteins.[2] The goal of these proteins is threefold: to alter the expression of host proteins that are necessary for DNA synthesis; to activate other virus genes (such as the virus-encoded DNA polymerase); and to avoid premature death of the infected cell by the host-immune defenses (blockage of apoptosis, blockage of interferon activity, and blockage of MHC class I translocation and expression).

Some adenoviruses under specialized conditions can transform cells using their early gene products. E1A (binds Retinoblastoma tumor suppressor protein) has been found to immortalize primary cells in vitro allowing E1B (binds p53 tumor suppressor) to assist and stably transform the cells. Nevertheless, they are reliant upon each other to successfully transform the host cell and form tumors. E1A is mostly intrinsically disordered protein and contains CR3 domain which is critical for transcriptional activation.[24]

DNA replication separates the early and late phases. Once the early genes have liberated adequate virus proteins, replication machinery, and replication substrates, replication of the adenovirus genome can occur. A terminal protein that is covalently bound to the 5' end of the adenovirus genome acts as a primer for replication. The viral DNA polymerase then uses a strand displacement mechanism, as opposed to the conventional Okazaki fragments used in mammalian DNA replication, to replicate the genome.

The late phase of the adenovirus lifecycle is focused on producing sufficient quantities of structural protein to pack all the genetic material produced by DNA replication.[2] Once the viral components have successfully been replicated, the virus is assembled into its protein shells and released from the cell as a result of virally induced cell lysis.[2]

Multiplicity reactivation edit

Adenovirus is capable of multiplicity reactivation (MR)[25] (Yamamoto and Shimojo, 1971). MR is the process by which two, or more, virus genomes containing lethal damage interact within the infected cell to form a viable virus genome. Such MR was demonstrated for adenovirus 12 after virions were irradiated with UV light and allowed to undergo multiple infection of host cells.[25] In a review, numerous examples of MR in different viruses were described, and it was suggested that MR is a common form of sexual interaction that provides the survival advantage of recombinational repair of genome damages.[26]

Epidemiology edit

Transmission edit

Adenoviruses are unusually stable to chemical or physical agents and adverse pH conditions, allowing for prolonged survival outside of the body and water. Adenoviruses are spread primarily via respiratory droplets, however they can also be spread by fecal routes and via aerosols (airborne transmission).[27] Research into the molecular mechanisms underlying adenoviral transmission provide empirical evidence in support of the hypothesis that coxsackievirus/adenovirus receptors (CARs) are needed to transport adenoviruses into certain naive/progenitor cell types.[28]

Humans edit

Humans infected with adenoviruses display a wide range of responses, from no symptoms at all to the severe infections typical of Adenovirus serotype 14.

Animals edit

Bat adenovirus TJM (Bt-AdV-TJM) is a novel species of the Mastadenovirus genus isolated from Myotis and Scotophilus kuhlii in China.[29] It is most closely related to the tree shrew and canine AdVs.[30]

Two types of canine adenoviruses are well known, type 1 and 2. Type 1 (CAdV-1) causes infectious canine hepatitis, a potentially fatal disease involving vasculitis and hepatitis. Type 1 infection can also cause respiratory and eye infections. CAdV-1 also affects foxes (Vulpes vulpes and Vulpes lagopus) and may cause hepatitis and encephalitis. Canine adenovirus 2 (CAdV-2) is one of the potential causes of kennel cough. Core vaccines for dogs include attenuated live CAdV-2, which produces immunity to CAdV-1 and CAdV-2. CAdV-1 was initially used in a vaccine for dogs, but corneal edema was a common complication.[31]

Squirrel adenovirus (SqAdV) is reported to cause enteritis in red squirrels in Europe, while gray squirrels seem to be resistant. SqAdV is most closely related to the adenovirus of guinea pigs (GpAdV).

Adenovirus in reptiles is poorly understood, but research is currently in progress.

Adenoviruses are also known to cause respiratory infections in horses, cattle, pigs, sheep, and goats. Equine adenovirus 1 can also cause fatal disease in immunocompromised Arabian foals, involving pneumonia and destruction of pancreatic and salivary gland tissue.[31] Tupaia adenovirus (TAV) (tree shrew adenovirus 1) has been isolated from tree shrews.

Otarine adenovirus 1 has been isolated from sea lions (Zalophus californianus).[32]

The fowl adenoviruses are associated with many disease conditions in domestic fowl like inclusion body hepatitis, hydropericardium syndrome,[33] Egg drop syndrome, Quail bronchitis, Gizzard erosions and many respiratory conditions. They have also been isolated from wild black kites (Milvus migrans).[34]

Titi monkey adenovirus was isolated from a colony of monkeys.[35]

Prevention edit

Currently there is a vaccine for adenovirus type 4 and 7 for US military personnel only. US military personnel are the recipients of this vaccine because they may be at a higher risk of infection.[citation needed] The vaccine contains a live virus, which may be shed in stool and lead to transmission. The vaccine is not approved for use outside of the military, as it has not been tested in studied in the general population or on people with weakened immune systems.[36]

In the past, US military recruits were vaccinated against two serotypes of adenovirus, with a corresponding decrease in illnesses caused by those serotypes. That vaccine is no longer manufactured. The U.S. Army Medical Research and Materiel Command announced on 31 October 2011 that a new adenovirus vaccine, which replaces the older version that has been out of production for over a decade, was shipped to basic training sites on 18 October 2011. More information is available here.[37]

Prevention of adenovirus, as well as other respiratory illnesses, involves frequent hand washing for more than 20 seconds, avoiding touching the eyes, face, and nose with unwashed hands, and avoiding close contact with people with symptomatic adenovirus infection. Those with symptomatic adenovirus infection are additionally advised to cough or sneeze into the arm or elbow instead of the hand, to avoid sharing cups and eating utensils, and to refrain from kissing others. Chlorination of swimming pools can prevent outbreaks of conjunctivitis caused by adenovirus.[36]

Diagnosis edit

Diagnosis is from symptoms and history. Tests are only necessary in very serious cases. Tests include blood tests, eyes, nose or throat swabs, stool sample tests, and chest x-rays.[38] In the laboratory, adenovirus can be identified with antigen detection, polymerase chain reaction (PCR), virus isolation and serology. Even if adenovirus is found to be present, it may not be the cause of any symptoms. Some immunocompromised individuals can shed the virus for weeks and show no symptoms.[39]

Infections edit

Most infections with adenovirus result in infections of the upper respiratory tract. Adenovirus infections often present as conjunctivitis, tonsillitis (which may look exactly like strep throat and cannot be distinguished from strep except by throat culture), an ear infection, or croup.[40] Adenoviruses types 40 and 41 can also cause gastroenteritis.[41] A combination of conjunctivitis and tonsillitis is particularly common with adenovirus infections.

Some children (especially the youngest) can develop adenovirus bronchiolitis or pneumonia, both of which can be severe. In babies, adenoviruses can also cause coughing fits that look almost exactly like whooping cough. Adenoviruses can also cause viral meningitis or encephalitis. Rarely, adenovirus can cause hemorrhagic cystitis (inflammation of the urinary bladder—a form of urinary tract infection—with blood in the urine).

Most people recover from adenovirus infections by themselves, but people with immunodeficiency sometimes die of adenovirus infections, and—rarely—even previously healthy people can die of these infections.[42] This may be because sometimes adenoviral infection can lead to cardiac disorders. For example, in one study, some cardiac samples of patients with dilated cardiomyopathy were positive for presence of adenovirus type 8.[43]

Adenoviruses are often transmitted by expectoration (e.g. aerosols), but they can also be transmitted by contact with an infected person, or by virus particles left on objects such as towels and faucet handles. Some people with adenovirus gastroenteritis may shed the virus in their stools for months after getting over the symptoms. The virus can be passed through water in swimming pools that are not sufficiently chlorinated.

As with many other illnesses, good handwashing practice is one way to inhibit the person-to-person transmission of adenoviruses. Heat and bleach will kill adenoviruses on objects.[citation needed]

Treatment edit

There are no proven antiviral drugs to treat adenoviral infections, so treatment is largely directed at the symptoms (such as acetaminophen for fever). The antiviral drug cidofovir has helped certain of those patients who had severe cases of illness; the number helped and to what degree, and the particular complications or symptoms it helped with, and when and where this happened, were not given in the source.[44] A doctor may give antibiotic eyedrops for conjunctivitis, while awaiting results of bacterial cultures, and to help prevent secondary bacterial infections. Currently, there is no adenovirus vaccine available to the general public, but a vaccine is available for the United States military for Types 4 and 7.

Use in gene therapy and vaccination edit

Gene therapy edit

Adenoviruses have long been a popular viral vector for gene therapy due to their ability to affect both replicating and non-replicating cells, accommodate large transgenes, and code for proteins without integrating genetic material into the host cell genome.[23] More specifically, they are used as a vehicle to administer targeted therapy,[45] in the form of recombinant DNA or protein. This therapy has been found especially useful in treating monogenic disease (e.g. cystic fibrosis, X-linked SCID, alpha1-antitrypsin deficiency) and cancer.[23] In China, oncolytic adenovirus is an approved cancer treatment.[46] Specific modifications on fiber proteins are used to target Adenovirus to certain cell types;[47] a major effort is made to limit hepatotoxicity and prevent multiple organ failure. Adenovirus dodecahedron can qualify as a potent delivery platform for foreign antigens to human myeloid dendritic cells (MDC), and that it is efficiently presented by MDC to M1-specific CD8+ T lymphocytes.[48]

A safety issue with adenoviruses is that they can cause an immune response with a related inflammatory response as occurred in the death Jesse Gelsinger in 1999. To address this risk, the genome of the viral genes have been modified to remove some viral genes. One such modification is the gutless vector that removes almost all the viral genome.[49]: 58 

Adenovirus has been used for delivery of CRISPR/Cas9 gene editing systems, but high immune reactivity to viral infection has posed challenges in use for patients.

Vaccines edit

Modified (recombinant) adenovirus vectors, including replication incompetent types, can deliver DNA coding for specific antigens.[50]

Adenovirus have been used to produce viral vector COVID-19 vaccines. "In four candidate COVID-19 vaccines... Ad5... serves as the 'vector' to transport the surface protein gene of SARS-CoV-2".[51] The goal is to genetically express the spike glycoprotein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A replication-deficient chimpanzee adenovirus vaccine vector (ChAdOx1) is used by the Oxford–AstraZeneca COVID-19 vaccine that has been approved for use.[52][53] The Janssen COVID-19 vaccine uses modified recombinant adenovirus type-26 (Ad26).[54] Recombinant adenovirus type-5 (Ad5) are being used by Ad5-nCoV,[55] ImmunityBio and UQ-CSL V451. The Gam-COVID-Vac (aka Sputnik-V) product is innovative because an Ad26 based vaccine is used on the first day and an Ad5 vaccine is used on day 21.[54] Another one is ChAd-SARS-CoV-2-S; the vaccine reportedly prevented mice that were genetically modified to have human ACE2 (hACE2) receptors, presumably receptors that allow virus-entry into the cells, from being infected with SARS-CoV-2.[56][57]

Possible issues with using Adenovirus as vaccine vectors include: the human body develops immunity to the vector itself, making subsequent booster shots difficult or impossible.[58] In some cases, people have pre-existing immunity to Adenoviruses, making vector delivery ineffective.[59]

HIV infection concerns edit

The use of Ad5 vaccines for COVID-19 worried researchers who had experience with two failed trials of an Ad5 vaccine, Phambili and STEP, due to the increased risk for uncircumcised male patients of contracting HIV-1 via unprotected anal sex.[60] At the time, it was concluded that heightened risk of HIV reception may be observed for any Ad5-based vector vaccine.[61] In October 2020, these researchers wrote in The Lancet: "On the basis of these findings, we are concerned that use of an Ad5 vector for immunisation against SARS-CoV-2 could similarly increase the risk of HIV-1 acquisition among men who receive the vaccine."[62][63] Vaccines using other technologies would not be affected, but Sputnik V, Convidecia and ImmunityBio's hAd5 would.[64] Two studies found that Ad5-specific CD4 T cells are more susceptible to HIV infection than CD4 T cells specific to certain other vectors, such as Cytomegalovirus[65] and Canarypox.[66]

By comparison, a Science article reported that China had approved CanSino's Ebola vaccine based on an Ad5 vector. It was tested in Sierra Leone, which had high HIV prevalence, making it more likely for such problems to be detected. CanSino's CEO said "we haven't seen anything with the Ebola vaccine" and speculated that HIV susceptibility might be limited to Ad5 vaccines which produced HIV proteins. In research reported in The Lancet in May, the company's researchers acknowledged the possibility, called it "controversial" and said they would watch for it in the company's COVID-19 vaccine candidate's trials.[51][55] It is not known to what extent LGBT discrimination in Sierra Leone could have contributed to masking a possible causal link in the Ebola vaccine trial; while the Step trial enrolled mainly homosexual and bisexual men, the Phambili trial enrolled mainly heterosexual men and women and still found an apparent connection.[citation needed]

See also edit

References edit

  1. ^ Padilla-Sanchez V (2021-07-24), Adenovirus D26 Structural Model at Atomic Resolution, doi:10.5281/zenodo.5132873, retrieved 2021-07-24
  2. ^ a b c d e f g h i j k l m "9.11H: Double-Stranded DNA Viruses- Adenoviruses". Biology LibreTexts. 25 June 2017. Retrieved 6 January 2021.
  3. ^ Rowe WP, Huebner RJ, Gilmore LK, Parrott RH, Ward TG (December 1953). "Isolation of a cytopathogenic agent from human adenoids undergoing spontaneous degeneration in tissue culture". Proceedings of the Society for Experimental Biology and Medicine. 84 (3): 570–3. doi:10.3181/00379727-84-20714. PMID 13134217. S2CID 3097955.
  4. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 22 May 2021.
  5. ^ Dhingra A, Hage E, Ganzenmueller T, Böttcher S, Hofmann J, Hamprecht K, et al. (January 2019). "Molecular Evolution of Human Adenovirus (HAdV) Species C". Scientific Reports. 9 (1): 1039. Bibcode:2019NatSR...9.1039D. doi:10.1038/s41598-018-37249-4. PMC 6355881. PMID 30705303.
  6. ^ Walsh MP, Seto J, Liu EB, Dehghan S, Hudson NR, Lukashev AN, et al. (October 2011). "Computational analysis of two species C human adenoviruses provides evidence of a novel virus". Journal of Clinical Microbiology. 49 (10): 3482–90. doi:10.1128/JCM.00156-11. PMC 3187342. PMID 21849694.
  7. ^ Robinson CM, Singh G, Henquell C, Walsh MP, Peigue-Lafeuille H, Seto D, et al. (January 2011). "Computational analysis and identification of an emergent human adenovirus pathogen implicated in a respiratory fatality". Virology. 409 (2): 141–7. doi:10.1016/j.virol.2010.10.020. PMC 3006489. PMID 21056888.
  8. ^ Singh G, Robinson CM, Dehghan S, Schmidt T, Seto D, Jones MS, et al. (April 2012). "Overreliance on the hexon gene, leading to misclassification of human adenoviruses". Journal of Virology. 86 (8): 4693–5. doi:10.1128/jvi.06969-11. PMC 3318657. PMID 22301156.
  9. ^ Singh G, Zhou X, Lee JY, Yousuf MA, Ramke M, Ismail AM, et al. (November 2015). "Recombination of the epsilon determinant and corneal tropism: Human adenovirus species D types 15, 29, 56, and 69". Virology. 485: 452–9. doi:10.1016/j.virol.2015.08.018. PMC 4619159. PMID 26343864.
  10. ^ Lee B, Damon CF, Platts-Mills JA (October 2020). "Pediatric acute gastroenteritis associated with adenovirus 40/41 in low-income and middle-income countries". Current Opinion in Infectious Diseases. 33 (5): 398–403. doi:10.1097/QCO.0000000000000663. PMC 8286627. PMID 32773498.
  11. ^ Jones MS, Harrach B, Ganac RD, Gozum MM, Dela Cruz WP, Riedel B, et al. (June 2007). "New adenovirus species found in a patient presenting with gastroenteritis". Journal of Virology. 81 (11): 5978–84. doi:10.1128/JVI.02650-06. PMC 1900323. PMID 17360747.
  12. ^ "Adenovirus | Home | CDC". www.cdc.gov. Centers for Disease control and prevention. 31 January 2020. Retrieved 6 January 2021.
  13. ^ Voss JD, Atkinson RL, Dhurandhar NV (November 2015). "Role of adenoviruses in obesity". Reviews in Medical Virology. 25 (6): 379–87. doi:10.1002/rmv.1852. PMID 26352001. S2CID 5370331.
  14. ^ Harrach B, Benkő M (2021). "Adenoviruses (Adenoviridae)". Encyclopedia of Virology. Vol. 2. Elsevier. ISBN 9780128145166. Retrieved 12 March 2021.
  15. ^ Reddy VS, Natchiar SK, Stewart PL, Nemerow GR (August 2010). "Crystal structure of human adenovirus at 3.5 A resolution". Science. 329 (5995): 1071–5. Bibcode:2010Sci...329.1071R. doi:10.1126/science.1187292. PMC 2929978. PMID 20798318.
    • Lay summary in: "Scientists unveil structure of adenovirus, the largest high-resolution complex ever found". Science Daily. August 28, 2010.
  16. ^ Harrison SC (August 2010). "Virology. Looking inside adenovirus". Science. 329 (5995): 1026–7. Bibcode:2010Sci...329.1026H. doi:10.1126/science.1194922. PMID 20798308. S2CID 206528739.
  17. ^ Acheson NH (2011). Fundamentals of molecular virology (2nd ed.). Hoboken, NJ: Wiley. ISBN 978-0-470-90059-8.
  18. ^ Wu E, Nemerow GR (April 2004). "Virus yoga: the role of flexibility in virus host cell recognition". Trends in Microbiology. 12 (4): 162–9. doi:10.1016/j.tim.2004.02.005. PMID 15051066.
  19. ^ Flint J, Skalka AM, Rall GF, Racaniello VR (2015). Principles of Virology. Molecular Biology. Vol. I. American Society of Microbiology. doi:10.1128/9781555818951. ISBN 9781555819330.
  20. ^ Moyer CL, Wiethoff CM, Maier O, Smith JG, Nemerow GR (March 2011). "Functional genetic and biophysical analyses of membrane disruption by human adenovirus". Journal of Virology. 85 (6): 2631–2641. doi:10.1128/JVI.02321-10. PMC 3067937. PMID 21209115.
  21. ^ Meier O, Greber UF (February 2004). "Adenovirus endocytosis". The Journal of Gene Medicine. 6 (Suppl 1): S152–S163. doi:10.1002/jgm.553. PMID 14978758. S2CID 22241820.
  22. ^ Schwartz U, Komatsu T, Huber C, Lagadec F, Baumgartl C, Silberhorn E, et al. (2023). "Changes in adenoviral chromatin organization precede early gene activation upon infection". The EMBO Journal. 42 (19): e114162. doi:10.15252/embj.2023114162. PMC 10548178. PMID 37641864.
  23. ^ a b c Lee CS, Bishop ES, Zhang R, Yu X, Farina EM, Yan S, et al. (June 2017). "Adenovirus-Mediated Gene Delivery: Potential Applications for Gene and Cell-Based Therapies in the New Era of Personalized Medicine". Genes & Diseases. 4 (2): 43–63. doi:10.1016/j.gendis.2017.04.001. PMC 5609467. PMID 28944281.
  24. ^ Singh G, Ismail AM, Lee JY, Ramke M, Lee JS, Dyer DW, et al. (February 2019). "Divergent Evolution of E1A CR3 in Human Adenovirus Species D". Viruses. 11 (2): 143. doi:10.3390/v11020143. PMC 6409611. PMID 30744049.
  25. ^ a b Yamamoto H, Shimojo H (August 1971). "Multiplicity reactivation of human adenovirus type 12 and simian virus 40 irradiated by ultraviolet light". Virology. 45 (2): 529–31. doi:10.1016/0042-6822(71)90355-2. PMID 4328814.
  26. ^ Michod RE, Bernstein H, Nedelcu AM (May 2008). "Adaptive value of sex in microbial pathogens". Infection, Genetics and Evolution. 8 (3): 267–85. doi:10.1016/j.meegid.2008.01.002. PMID 18295550.
  27. ^ Wang CC, Prather KA, Sznitman J, Jimenez JL, Lakdawala SS, Tufekci Z, et al. (August 2021). "Airborne transmission of respiratory viruses". Science. 373 (6558): eabd9149. doi:10.1126/science.abd9149. PMC 8721651. PMID 34446582.
  28. ^ Wan YY, Leon RP, Marks R, Cham CM, Schaack J, Gajewski TF, et al. (December 2000). "Transgenic expression of the coxsackie/adenovirus receptor enables adenoviral-mediated gene delivery in naive T cells". Proceedings of the National Academy of Sciences of the United States of America. 97 (25): 13784–13789. Bibcode:2000PNAS...9713784W. doi:10.1073/pnas.250356297. PMC 17653. PMID 11095726.
  29. ^ Chen LH, Wu ZQ, Hu YF, Yang F, Yang J, Jin Q (June 2012). "[Genetic diversity of adenoviruses in bats of China]". Bing du Xue Bao = Chinese Journal of Virology. 28 (4): 403–8. PMID 22978165.
  30. ^ Li Y, Ge X, Zhang H, Zhou P, Zhu Y, Zhang Y, et al. (April 2010). "Host range, prevalence, and genetic diversity of adenoviruses in bats". Journal of Virology. 84 (8): 3889–97. doi:10.1128/JVI.02497-09. PMC 2849498. PMID 20089640.
  31. ^ a b Fenner FJ, Gibbs EP, Murphy FA, Rott R, Studdert MJ, White DO (1993). Veterinary Virology (2nd ed.). Academic Press, Inc. ISBN 978-0-12-253056-2.
  32. ^ Goldstein T, Colegrove KM, Hanson M, Gulland FM (May 2011). "Isolation of a novel adenovirus from California sea lions Zalophus californianus". Diseases of Aquatic Organisms. 94 (3): 243–8. doi:10.3354/dao02321. PMID 21790072.
  33. ^ "Inclusion Body Hepatitis and Hepatitis Hydropericardium Syndrome in Poultry - Poultry". Veterinary Manual.
  34. ^ Kumar R, Kumar V, Asthana M, Shukla SK, Chandra R (January 2010). "Isolation and identification of a fowl adenovirus from wild Black Kites (Milvus migrans)". Journal of Wildlife Diseases. 46 (1): 272–6. doi:10.7589/0090-3558-46.1.272. PMID 20090043.
  35. ^ Chen EC, Yagi S, Kelly KR, Mendoza SP, Tarara RP, Canfield DR, et al. (July 2011). Nemerow GR (ed.). "Cross-species transmission of a novel adenovirus associated with a fulminant pneumonia outbreak in a new world monkey colony". PLOS Pathogens. 7 (7): e1002155. doi:10.1371/journal.ppat.1002155. PMC 3136464. PMID 21779173.
  36. ^ a b "Adenovirus | Prevention and Treatment | CDC". 2019-09-03.
  37. ^ "USAMRMC protects Soldiers against unseen enemy".
  38. ^ . Archived from the original on April 3, 2020.
  39. ^ "Adenovirus | Clinical Diagnosis | CDC". 2019-08-29.
  40. ^ "Croup". The Lecturio Medical Concept Library. 30 April 2020. Retrieved 11 July 2021.
  41. ^ Uhnoo I, Svensson L, Wadell G (September 1990). "Enteric adenoviruses". Baillière's Clinical Gastroenterology. 4 (3): 627–42. doi:10.1016/0950-3528(90)90053-j. PMID 1962727.
  42. ^ Burkholder A (2007-12-19). "A killer cold? Even the healthy may be vulnerable". CNN. Retrieved 2007-12-19.
  43. ^ Hosseini SM, Mirhosseini SM, Taghian M, Salehi M, Farahani MM, Bakhtiari F, et al. (October 2018). "First evidence of the presence of adenovirus type 8 in myocardium of patients with severe idiopathic dilated cardiomyopathy". Archives of Virology. 163 (10): 2895–2897. doi:10.1007/s00705-018-3942-3. PMID 30022238. S2CID 49870344.
  44. ^ Fox M (January 28, 2018). "Adenovirus looks like flu, acts like flu, but it's not influenza". NBC News.
  45. ^ Thacker EE, Nakayama M, Smith BF, Bird RC, Muminova Z, Strong TV, et al. (November 2009). "A genetically engineered adenovirus vector targeted to CD40 mediates transduction of canine dendritic cells and promotes antigen-specific immune responses in vivo". Vaccine. 27 (50): 7116–24. doi:10.1016/j.vaccine.2009.09.055. PMC 2784276. PMID 19786146.
  46. ^ Harrington KJ, Vile RG, Pandha HS, eds. (May 2008). Viral Therapy of Cancer. Hoboken, N.J.: Wiley. pp. 1–13. ISBN 9780470019221.
  47. ^ Xin KQ, Sekimoto Y, Takahashi T, Mizuguchi H, Ichino M, Yoshida A, et al. (May 2007). "Chimeric adenovirus 5/35 vector containing the clade C HIV gag gene induces a cross-reactive immune response against HIV". Vaccine. 25 (19): 3809–15. doi:10.1016/j.vaccine.2007.01.117. PMID 17386962.
  48. ^ Naskalska A, Szolajska E, Chaperot L, Angel J, Plumas J, Chroboczek J (December 2009). "Influenza recombinant vaccine: matrix protein M1 on the platform of the adenovirus dodecahedron". Vaccine. 27 (52): 7385–93. doi:10.1016/j.vaccine.2009.09.021. PMID 19766576.
  49. ^ Nóbrega C (2020). A handbook of gene and cell therapy. Liliana Mendonça, Carlos A. Matos. Cham: Springer. ISBN 978-3-030-41333-0. OCLC 1163431307.
  50. ^ Cross R (12 May 2020). "Adenoviral vectors are the new COVID-19 vaccine front-runners. Can they overcome their checkered past?". Chemical & Engineering News. 98 (19). Retrieved 15 December 2020.
  51. ^ a b Cohen J (19 October 2020). "Could certain COVID-19 vaccines leave people more vulnerable to the AIDS virus?". American Association for the Advancement of Science. Science (magazine). Retrieved 15 December 2020.
  52. ^ Folegatti PM, Ewer KJ, Aley PK, Angus B, Becker S, Belij-Rammerstorfer S, et al. (August 2020). "Safety and immunogenicity of the ChAdOx1 nCoV-19 vaccine against SARS-CoV-2: a preliminary report of a phase 1/2, single-blind, randomised controlled trial". Lancet. 396 (10249): 467–478. doi:10.1016/S0140-6736(20)31604-4. PMC 7445431. PMID 32702298.
  53. ^ "The Oxford/AstraZeneca COVID-19 vaccine: what you need to know". www.who.int. Retrieved 2021-03-07.
  54. ^ a b "An Open Study of the Safety, Tolerability and Immunogenicity of the Drug "Gam-COVID-Vac" Vaccine Against COVID-19". Clinical Trials. 22 June 2020. Retrieved 22 December 2020.
  55. ^ a b Zhu FC, Li YH, Guan XH, Hou LH, Wang WJ, Li JX, et al. (June 2020). "Safety, tolerability, and immunogenicity of a recombinant adenovirus type-5 vectored COVID-19 vaccine: a dose-escalation, open-label, non-randomised, first-in-human trial". Lancet. 395 (10240): 1845–1854. doi:10.1016/s0140-6736(20)31208-3. PMC 7255193. PMID 32450106.
  56. ^ "Experimental Nasal Vaccine Protects Upper and Lower Respiratory Tracts against SARS-CoV-2". Sci News. 27 August 2020. Retrieved 28 August 2020.
  57. ^ Hassan AO, Kafai NM, Dmitriev IP, Fox JM, Smith BK, Harvey IB, et al. (October 2020). "A Single-Dose Intranasal ChAd Vaccine Protects Upper and Lower Respiratory Tracts against SARS-CoV-2". Cell. 183 (1): 169–184.e13. doi:10.1016/j.cell.2020.08.026. PMC 7437481. PMID 32931734.
  58. ^ Logunov DY, Dolzhikova IV, Zubkova OV, Tukhvatulin AI, Shcheblyakov DV, Dzharullaeva AS, et al. (September 2020). "Safety and immunogenicity of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine in two formulations: two open, non-randomised phase 1/2 studies from Russia". Lancet. 396 (10255): 887–897. doi:10.1016/S0140-6736(20)31866-3. PMC 7471804. PMID 32896291.
  59. ^ Fausther-Bovendo H, Kobinger GP (2014). "Pre-existing immunity against Ad vectors: humoral, cellular, and innate response, what's important?". Human Vaccines & Immunotherapeutics. 10 (10): 2875–84. doi:10.4161/hv.29594. PMC 5443060. PMID 25483662.
  60. ^ Collins S (9 December 2020). "HIV risk from some COVID-19 vaccines might be unlikely due to rarity of vector viruses involved". HIV i-BASE. Retrieved 15 December 2020.
  61. ^ Fauci AS, Marovich MA, Dieffenbach CW, Hunter E, Buchbinder SP (2014-04-04). "Immune Activation with HIV Vaccines: Implications of the Adenovirus Vector Experience". Science. 344 (6179): 49–51. doi:10.1126/science.1250672. ISSN 0036-8075. PMC 4414116. PMID 24700849.
  62. ^ Rosenberg J (25 October 2020). "Researchers Warn of Heightened Risk of HIV With Certain COVID-19 Vaccines". AJMC. Retrieved 15 December 2020.
  63. ^ Buchbinder SP, McElrath MJ, Dieffenbach C, Corey L (2020-10-31). "Use of adenovirus type-5 vectored vaccines: a cautionary tale". Lancet. 396 (10260): e68–e69. doi:10.1016/S0140-6736(20)32156-5. PMC 7571904. PMID 33091364.
  64. ^ Buhl L. "Most COVID-19 Vaccines Won't Affect HIV Risk: Here's What the Science Tells Us".
  65. ^ Hu H, Eller MA, Zafar S, Zhou Y, Gu M, Wei Z, et al. (2014-09-16). "Preferential infection of human Ad5-specific CD4 T cells by HIV in Ad5 naturally exposed and recombinant Ad5-HIV vaccinated individuals". Proceedings of the National Academy of Sciences of the United States of America. 111 (37): 13439–44. Bibcode:2014PNAS..11113439H. doi:10.1073/pnas.1400446111. ISSN 0027-8424. PMC 4169982. PMID 25197078.
  66. ^ Auclair S, Liu F, Niu Q, Hou W, Churchyard G, Morgan C, et al. (2018-02-23). "Distinct susceptibility of HIV vaccine vector-induced CD4 T cells to HIV infection". PLOS Pathogens. 14 (2): e1006888. doi:10.1371/journal.ppat.1006888. ISSN 1553-7374. PMC 5841825. PMID 29474461.

External links edit

adenoviridae, ad26, ad35, ad48, redirect, here, years, other, uses, disambiguation, ad26, disambiguation, disambiguation, adenoviruses, members, family, medium, sized, nonenveloped, without, outer, lipid, bilayer, viruses, with, icosahedral, nucleocapsid, cont. ad5 ad26 ad35 and ad48 redirect here For the years see AD 5 AD 26 AD 35 and AD 48 For other uses see AD 5 disambiguation AD26 disambiguation and AD 35 disambiguation Adenoviruses members of the family Adenoviridae are medium sized 90 100 nm nonenveloped without an outer lipid bilayer viruses with an icosahedral nucleocapsid containing a double stranded DNA genome 2 Their name derives from their initial isolation from human adenoids in 1953 3 AdenovirusesTransmission electron micrograph of two adenovirus particlesVirus classification unranked VirusRealm VaridnaviriaKingdom BamfordviraePhylum PreplasmiviricotaClass TectiliviricetesOrder RowaviralesFamily AdenoviridaeGeneraAtadenovirus Aviadenovirus Ichtadenovirus Mastadenovirus Siadenovirus TestadenovirusAdenovirus D26 structural model at atomic resolution 1 They have a broad range of vertebrate hosts in humans more than 50 distinct adenoviral serotypes have been found to cause a wide range of illnesses from mild respiratory infections in young children known as the common cold to life threatening multi organ disease in people with a weakened immune system 2 Contents 1 Virology 1 1 Classification 1 2 Diversity 1 3 Structure 1 4 Genome 1 5 Replication 1 6 Multiplicity reactivation 2 Epidemiology 2 1 Transmission 2 2 Humans 2 3 Animals 3 Prevention 4 Diagnosis 5 Infections 6 Treatment 7 Use in gene therapy and vaccination 7 1 Gene therapy 7 2 Vaccines 7 2 1 HIV infection concerns 8 See also 9 References 10 External linksVirology editClassification edit This family contains the following genera 4 Atadenovirus Aviadenovirus Ichtadenovirus Mastadenovirus including all human adenoviruses Siadenovirus TestadenovirusDiversity edit In humans currently there are 88 human adenoviruses HAdVs in seven species Human adenovirus A to G 5 A 12 18 31 B 3 7 11 14 16 21 34 35 50 55 C 1 2 5 6 57 6 D 8 9 10 13 15 17 19 20 22 23 24 25 26 27 28 29 30 32 33 36 37 38 39 42 43 44 45 46 47 48 49 51 53 54 56 7 58 59 60 62 63 8 64 65 67 69 9 70 71 72 73 74 75 E 4 F 40 41 10 G 52 11 Different types serotypes are associated with different conditions 12 respiratory disease mainly species HAdV B and C conjunctivitis HAdV B and D gastroenteritis HAdV F types 40 41 HAdV G type 52 obesity or adipogenesis HAdV A type 31 HAdV C type 5 HAdV D types 9 36 37 13 All these types are called Human mastadenovirus A G by the ICTV because all are members of the genus Mastadenovirus Structure edit nbsp The structure of adenovirus 1 penton capsomers 2 hexon capsomers and 3 viral genome linear dsDNA Adenoviruses are medium sized 90 100 nm 2 The virions are composed of one linear piece of double stranded DNA inside an icosahedral capsid 240 hexon proteins make up the bulk of the capsid while twelve penton bases cap the icosahedron s corners The penton bases are associated with protruding fibers that aid in attachment to the host cell via the receptor on its surface 14 In 2010 the structure of the human adenovirus was solved at the atomic level making it the largest high resolution model ever The virus is composed of around 1 million amino acid residues and weighs around 150 MDa 15 16 Genome edit Main article Adenovirus genome nbsp Schematic diagram of the linear adenovirus genome showing Early genes E and Late genes L The adenovirus genome is linear non segmented double stranded ds DNA that is between 26 and 48 Kbp 2 This allows the virus to theoretically carry 22 to 40 genes Although this is significantly larger than other viruses in its Baltimore group it is still a very simple virus and is heavily reliant on the host cell for survival and replication The genes of adenoviruses can generally be divided into well conserved sets of transcription units with six early transcription units E1A E1B E2A E2B E3 and E4 and one late transcription unit ranging from L1 L5 In addition adenoviruses also contain two intermediate transcription units named XI and IVa2 To increase the viral gene economy adenoviruses accommodate genes on both strands of its dsDNA meaning that most of its genome is utilized for coding proteins 17 An interesting feature of this viral genome is that it has a terminal 55 kDa protein associated with each of the 5 ends of the linear dsDNA These are used as primers in viral replication and ensure that the ends of the virus linear genome are adequately replicated citation needed Replication edit Adenoviruses possess a linear dsDNA genome and are able to replicate in the nucleus of vertebrate cells using the host s replication machinery 2 Entry of adenoviruses into the host cell involves two sets of interactions between the virus and the host cell 2 Most of the action occurs at the vertices Entry into the host cell is initiated by the knob domain of the fiber protein binding to the cell receptor 2 The two currently established receptors are CD46 for the group B human adenovirus serotypes and the coxsackievirus adenovirus receptor CAR for all other serotypes 2 There are some reports suggesting MHC molecules and sialic acid residues functioning in this capacity as well This is followed by a secondary interaction where a motif in the penton base protein see capsomere interacts with an integrin molecule It is the co receptor interaction that stimulates entry of the adenovirus This co receptor molecule is aV integrin Binding to av integrin results in endocytosis of the virus particle via clathrin coated pits Attachment to aV integrin stimulates cell signaling and thus induces actin polymerization which facilitates clathrin mediated endocytosis and results in virion s entry into the host cell within an endosome 18 Once the virus has successfully gained entry into the host cell the endosome acidifies which alters virus topology by causing capsid components to disband The capsid is destabilized and protein VI which is one of the capsid constituents see Adenovirus genome is released from it 19 Protein VI contains an N terminal amphiphatic alpha helix a helical domain that exhibits both hydrophobic and hydrophilic properties This amphipathic helix enables the binding of protein VI to the endsomal membrane leading to a severe membrane curvature that ultimately disrupts the endosome 20 These changes as well as the toxic nature of the pentons destroy the endosome resulting in the movement of the virion into the cytoplasm 2 With the help of cellular microtubules the virus is transported to the nuclear pore complex whereby the adenovirus particle disassembles Viral DNA is subsequently released which can enter the nucleus via the nuclear pore 21 After this the DNA associates with histone molecules already present in the nucleus which allows it to interact with the host cell transcription machinery 22 Then viral gene expression can occur without integrating the viral genome into host cell chromosomes 23 and new virus particles can be generated The adenovirus life cycle is separated by the DNA replication process into two phases an early and a late phase 2 In both phases a primary transcript that is alternatively spliced to generate monocistronic mRNAs compatible with the host s ribosome is generated allowing for the products to be translated citation needed The early genes are responsible for expressing mainly non structural regulatory proteins 2 The goal of these proteins is threefold to alter the expression of host proteins that are necessary for DNA synthesis to activate other virus genes such as the virus encoded DNA polymerase and to avoid premature death of the infected cell by the host immune defenses blockage of apoptosis blockage of interferon activity and blockage of MHC class I translocation and expression Some adenoviruses under specialized conditions can transform cells using their early gene products E1A binds Retinoblastoma tumor suppressor protein has been found to immortalize primary cells in vitro allowing E1B binds p53 tumor suppressor to assist and stably transform the cells Nevertheless they are reliant upon each other to successfully transform the host cell and form tumors E1A is mostly intrinsically disordered protein and contains CR3 domain which is critical for transcriptional activation 24 DNA replication separates the early and late phases Once the early genes have liberated adequate virus proteins replication machinery and replication substrates replication of the adenovirus genome can occur A terminal protein that is covalently bound to the 5 end of the adenovirus genome acts as a primer for replication The viral DNA polymerase then uses a strand displacement mechanism as opposed to the conventional Okazaki fragments used in mammalian DNA replication to replicate the genome The late phase of the adenovirus lifecycle is focused on producing sufficient quantities of structural protein to pack all the genetic material produced by DNA replication 2 Once the viral components have successfully been replicated the virus is assembled into its protein shells and released from the cell as a result of virally induced cell lysis 2 Multiplicity reactivation edit Adenovirus is capable of multiplicity reactivation MR 25 Yamamoto and Shimojo 1971 MR is the process by which two or more virus genomes containing lethal damage interact within the infected cell to form a viable virus genome Such MR was demonstrated for adenovirus 12 after virions were irradiated with UV light and allowed to undergo multiple infection of host cells 25 In a review numerous examples of MR in different viruses were described and it was suggested that MR is a common form of sexual interaction that provides the survival advantage of recombinational repair of genome damages 26 Epidemiology editTransmission edit Adenoviruses are unusually stable to chemical or physical agents and adverse pH conditions allowing for prolonged survival outside of the body and water Adenoviruses are spread primarily via respiratory droplets however they can also be spread by fecal routes and via aerosols airborne transmission 27 Research into the molecular mechanisms underlying adenoviral transmission provide empirical evidence in support of the hypothesis that coxsackievirus adenovirus receptors CARs are needed to transport adenoviruses into certain naive progenitor cell types 28 Humans edit Main article Adenovirus infection Humans infected with adenoviruses display a wide range of responses from no symptoms at all to the severe infections typical of Adenovirus serotype 14 Animals edit See also DA2PPC Vaccine Bat adenovirus TJM Bt AdV TJM is a novel species of the Mastadenovirus genus isolated from Myotis and Scotophilus kuhlii in China 29 It is most closely related to the tree shrew and canine AdVs 30 Two types of canine adenoviruses are well known type 1 and 2 Type 1 CAdV 1 causes infectious canine hepatitis a potentially fatal disease involving vasculitis and hepatitis Type 1 infection can also cause respiratory and eye infections CAdV 1 also affects foxes Vulpes vulpes and Vulpes lagopus and may cause hepatitis and encephalitis Canine adenovirus 2 CAdV 2 is one of the potential causes of kennel cough Core vaccines for dogs include attenuated live CAdV 2 which produces immunity to CAdV 1 and CAdV 2 CAdV 1 was initially used in a vaccine for dogs but corneal edema was a common complication 31 Squirrel adenovirus SqAdV is reported to cause enteritis in red squirrels in Europe while gray squirrels seem to be resistant SqAdV is most closely related to the adenovirus of guinea pigs GpAdV Adenovirus in reptiles is poorly understood but research is currently in progress Adenoviruses are also known to cause respiratory infections in horses cattle pigs sheep and goats Equine adenovirus 1 can also cause fatal disease in immunocompromised Arabian foals involving pneumonia and destruction of pancreatic and salivary gland tissue 31 Tupaia adenovirus TAV tree shrew adenovirus 1 has been isolated from tree shrews Otarine adenovirus 1 has been isolated from sea lions Zalophus californianus 32 The fowl adenoviruses are associated with many disease conditions in domestic fowl like inclusion body hepatitis hydropericardium syndrome 33 Egg drop syndrome Quail bronchitis Gizzard erosions and many respiratory conditions They have also been isolated from wild black kites Milvus migrans 34 Titi monkey adenovirus was isolated from a colony of monkeys 35 Prevention editMain article Adenovirus vaccine Currently there is a vaccine for adenovirus type 4 and 7 for US military personnel only US military personnel are the recipients of this vaccine because they may be at a higher risk of infection citation needed The vaccine contains a live virus which may be shed in stool and lead to transmission The vaccine is not approved for use outside of the military as it has not been tested in studied in the general population or on people with weakened immune systems 36 In the past US military recruits were vaccinated against two serotypes of adenovirus with a corresponding decrease in illnesses caused by those serotypes That vaccine is no longer manufactured The U S Army Medical Research and Materiel Command announced on 31 October 2011 that a new adenovirus vaccine which replaces the older version that has been out of production for over a decade was shipped to basic training sites on 18 October 2011 More information is available here 37 Prevention of adenovirus as well as other respiratory illnesses involves frequent hand washing for more than 20 seconds avoiding touching the eyes face and nose with unwashed hands and avoiding close contact with people with symptomatic adenovirus infection Those with symptomatic adenovirus infection are additionally advised to cough or sneeze into the arm or elbow instead of the hand to avoid sharing cups and eating utensils and to refrain from kissing others Chlorination of swimming pools can prevent outbreaks of conjunctivitis caused by adenovirus 36 Diagnosis editDiagnosis is from symptoms and history Tests are only necessary in very serious cases Tests include blood tests eyes nose or throat swabs stool sample tests and chest x rays 38 In the laboratory adenovirus can be identified with antigen detection polymerase chain reaction PCR virus isolation and serology Even if adenovirus is found to be present it may not be the cause of any symptoms Some immunocompromised individuals can shed the virus for weeks and show no symptoms 39 Infections editMain article Adenovirus infection Most infections with adenovirus result in infections of the upper respiratory tract Adenovirus infections often present as conjunctivitis tonsillitis which may look exactly like strep throat and cannot be distinguished from strep except by throat culture an ear infection or croup 40 Adenoviruses types 40 and 41 can also cause gastroenteritis 41 A combination of conjunctivitis and tonsillitis is particularly common with adenovirus infections Some children especially the youngest can develop adenovirus bronchiolitis or pneumonia both of which can be severe In babies adenoviruses can also cause coughing fits that look almost exactly like whooping cough Adenoviruses can also cause viral meningitis or encephalitis Rarely adenovirus can cause hemorrhagic cystitis inflammation of the urinary bladder a form of urinary tract infection with blood in the urine Most people recover from adenovirus infections by themselves but people with immunodeficiency sometimes die of adenovirus infections and rarely even previously healthy people can die of these infections 42 This may be because sometimes adenoviral infection can lead to cardiac disorders For example in one study some cardiac samples of patients with dilated cardiomyopathy were positive for presence of adenovirus type 8 43 Adenoviruses are often transmitted by expectoration e g aerosols but they can also be transmitted by contact with an infected person or by virus particles left on objects such as towels and faucet handles Some people with adenovirus gastroenteritis may shed the virus in their stools for months after getting over the symptoms The virus can be passed through water in swimming pools that are not sufficiently chlorinated As with many other illnesses good handwashing practice is one way to inhibit the person to person transmission of adenoviruses Heat and bleach will kill adenoviruses on objects citation needed Treatment editThere are no proven antiviral drugs to treat adenoviral infections so treatment is largely directed at the symptoms such as acetaminophen for fever The antiviral drug cidofovir has helped certain of those patients who had severe cases of illness the number helped and to what degree and the particular complications or symptoms it helped with and when and where this happened were not given in the source 44 A doctor may give antibiotic eyedrops for conjunctivitis while awaiting results of bacterial cultures and to help prevent secondary bacterial infections Currently there is no adenovirus vaccine available to the general public but a vaccine is available for the United States military for Types 4 and 7 Use in gene therapy and vaccination editGene therapy edit Adenoviruses have long been a popular viral vector for gene therapy due to their ability to affect both replicating and non replicating cells accommodate large transgenes and code for proteins without integrating genetic material into the host cell genome 23 More specifically they are used as a vehicle to administer targeted therapy 45 in the form of recombinant DNA or protein This therapy has been found especially useful in treating monogenic disease e g cystic fibrosis X linked SCID alpha1 antitrypsin deficiency and cancer 23 In China oncolytic adenovirus is an approved cancer treatment 46 Specific modifications on fiber proteins are used to target Adenovirus to certain cell types 47 a major effort is made to limit hepatotoxicity and prevent multiple organ failure Adenovirus dodecahedron can qualify as a potent delivery platform for foreign antigens to human myeloid dendritic cells MDC and that it is efficiently presented by MDC to M1 specific CD8 T lymphocytes 48 A safety issue with adenoviruses is that they can cause an immune response with a related inflammatory response as occurred in the death Jesse Gelsinger in 1999 To address this risk the genome of the viral genes have been modified to remove some viral genes One such modification is the gutless vector that removes almost all the viral genome 49 58 Adenovirus has been used for delivery of CRISPR Cas9 gene editing systems but high immune reactivity to viral infection has posed challenges in use for patients Vaccines edit Further information Viral vector vaccine Modified recombinant adenovirus vectors including replication incompetent types can deliver DNA coding for specific antigens 50 Adenovirus have been used to produce viral vector COVID 19 vaccines In four candidate COVID 19 vaccines Ad5 serves as the vector to transport the surface protein gene of SARS CoV 2 51 The goal is to genetically express the spike glycoprotein of severe acute respiratory syndrome coronavirus 2 SARS CoV 2 A replication deficient chimpanzee adenovirus vaccine vector ChAdOx1 is used by the Oxford AstraZeneca COVID 19 vaccine that has been approved for use 52 53 The Janssen COVID 19 vaccine uses modified recombinant adenovirus type 26 Ad26 54 Recombinant adenovirus type 5 Ad5 are being used by Ad5 nCoV 55 ImmunityBio and UQ CSL V451 The Gam COVID Vac aka Sputnik V product is innovative because an Ad26 based vaccine is used on the first day and an Ad5 vaccine is used on day 21 54 Another one is ChAd SARS CoV 2 S the vaccine reportedly prevented mice that were genetically modified to have human ACE2 hACE2 receptors presumably receptors that allow virus entry into the cells from being infected with SARS CoV 2 56 57 Possible issues with using Adenovirus as vaccine vectors include the human body develops immunity to the vector itself making subsequent booster shots difficult or impossible 58 In some cases people have pre existing immunity to Adenoviruses making vector delivery ineffective 59 HIV infection concerns edit This section needs more reliable medical references for verification or relies too heavily on primary sources Please review the contents of the section and add the appropriate references if you can Unsourced or poorly sourced material may be challenged and removed Find sources Adenoviridae news newspapers books scholar JSTOR April 2021 nbsp The use of Ad5 vaccines for COVID 19 worried researchers who had experience with two failed trials of an Ad5 vaccine Phambili and STEP due to the increased risk for uncircumcised male patients of contracting HIV 1 via unprotected anal sex 60 At the time it was concluded that heightened risk of HIV reception may be observed for any Ad5 based vector vaccine 61 In October 2020 these researchers wrote in The Lancet On the basis of these findings we are concerned that use of an Ad5 vector for immunisation against SARS CoV 2 could similarly increase the risk of HIV 1 acquisition among men who receive the vaccine 62 63 Vaccines using other technologies would not be affected but Sputnik V Convidecia and ImmunityBio s hAd5 would 64 Two studies found that Ad5 specific CD4 T cells are more susceptible to HIV infection than CD4 T cells specific to certain other vectors such as Cytomegalovirus 65 and Canarypox 66 By comparison a Science article reported that China had approved CanSino s Ebola vaccine based on an Ad5 vector It was tested in Sierra Leone which had high HIV prevalence making it more likely for such problems to be detected CanSino s CEO said we haven t seen anything with the Ebola vaccine and speculated that HIV susceptibility might be limited to Ad5 vaccines which produced HIV proteins In research reported in The Lancet in May the company s researchers acknowledged the possibility called it controversial and said they would watch for it in the company s COVID 19 vaccine candidate s trials 51 55 It is not known to what extent LGBT discrimination in Sierra Leone could have contributed to masking a possible causal link in the Ebola vaccine trial while the Step trial enrolled mainly homosexual and bisexual men the Phambili trial enrolled mainly heterosexual men and women and still found an apparent connection citation needed See also edit nbsp Medicine portal nbsp Viruses portalVA viral associated RNAReferences edit Padilla Sanchez V 2021 07 24 Adenovirus D26 Structural Model at Atomic Resolution doi 10 5281 zenodo 5132873 retrieved 2021 07 24 a b c d e f g h i j k l m 9 11H Double Stranded DNA Viruses Adenoviruses Biology LibreTexts 25 June 2017 Retrieved 6 January 2021 Rowe WP Huebner RJ Gilmore LK Parrott RH Ward TG December 1953 Isolation of a cytopathogenic agent from human adenoids undergoing spontaneous degeneration in tissue culture Proceedings of the Society for Experimental Biology and Medicine 84 3 570 3 doi 10 3181 00379727 84 20714 PMID 13134217 S2CID 3097955 Virus Taxonomy 2020 Release International Committee on Taxonomy of Viruses ICTV March 2021 Retrieved 22 May 2021 Dhingra A Hage E Ganzenmueller T Bottcher S Hofmann J Hamprecht K et al January 2019 Molecular Evolution of Human Adenovirus HAdV Species C Scientific Reports 9 1 1039 Bibcode 2019NatSR 9 1039D doi 10 1038 s41598 018 37249 4 PMC 6355881 PMID 30705303 Walsh MP Seto J Liu EB Dehghan S Hudson NR Lukashev AN et al October 2011 Computational analysis of two species C human adenoviruses provides evidence of a novel virus Journal of Clinical Microbiology 49 10 3482 90 doi 10 1128 JCM 00156 11 PMC 3187342 PMID 21849694 Robinson CM Singh G Henquell C Walsh MP Peigue Lafeuille H Seto D et al January 2011 Computational analysis and identification of an emergent human adenovirus pathogen implicated in a respiratory fatality Virology 409 2 141 7 doi 10 1016 j virol 2010 10 020 PMC 3006489 PMID 21056888 Singh G Robinson CM Dehghan S Schmidt T Seto D Jones MS et al April 2012 Overreliance on the hexon gene leading to misclassification of human adenoviruses Journal of Virology 86 8 4693 5 doi 10 1128 jvi 06969 11 PMC 3318657 PMID 22301156 Singh G Zhou X Lee JY Yousuf MA Ramke M Ismail AM et al November 2015 Recombination of the epsilon determinant and corneal tropism Human adenovirus species D types 15 29 56 and 69 Virology 485 452 9 doi 10 1016 j virol 2015 08 018 PMC 4619159 PMID 26343864 Lee B Damon CF Platts Mills JA October 2020 Pediatric acute gastroenteritis associated with adenovirus 40 41 in low income and middle income countries Current Opinion in Infectious Diseases 33 5 398 403 doi 10 1097 QCO 0000000000000663 PMC 8286627 PMID 32773498 Jones MS Harrach B Ganac RD Gozum MM Dela Cruz WP Riedel B et al June 2007 New adenovirus species found in a patient presenting with gastroenteritis Journal of Virology 81 11 5978 84 doi 10 1128 JVI 02650 06 PMC 1900323 PMID 17360747 Adenovirus Home CDC www cdc gov Centers for Disease control and prevention 31 January 2020 Retrieved 6 January 2021 Voss JD Atkinson RL Dhurandhar NV November 2015 Role of adenoviruses in obesity Reviews in Medical Virology 25 6 379 87 doi 10 1002 rmv 1852 PMID 26352001 S2CID 5370331 Harrach B Benko M 2021 Adenoviruses Adenoviridae Encyclopedia of Virology Vol 2 Elsevier ISBN 9780128145166 Retrieved 12 March 2021 Reddy VS Natchiar SK Stewart PL Nemerow GR August 2010 Crystal structure of human adenovirus at 3 5 A resolution Science 329 5995 1071 5 Bibcode 2010Sci 329 1071R doi 10 1126 science 1187292 PMC 2929978 PMID 20798318 Lay summary in Scientists unveil structure of adenovirus the largest high resolution complex ever found Science Daily August 28 2010 Harrison SC August 2010 Virology Looking inside adenovirus Science 329 5995 1026 7 Bibcode 2010Sci 329 1026H doi 10 1126 science 1194922 PMID 20798308 S2CID 206528739 Acheson NH 2011 Fundamentals of molecular virology 2nd ed Hoboken NJ Wiley ISBN 978 0 470 90059 8 Wu E Nemerow GR April 2004 Virus yoga the role of flexibility in virus host cell recognition Trends in Microbiology 12 4 162 9 doi 10 1016 j tim 2004 02 005 PMID 15051066 Flint J Skalka AM Rall GF Racaniello VR 2015 Principles of Virology Molecular Biology Vol I American Society of Microbiology doi 10 1128 9781555818951 ISBN 9781555819330 Moyer CL Wiethoff CM Maier O Smith JG Nemerow GR March 2011 Functional genetic and biophysical analyses of membrane disruption by human adenovirus Journal of Virology 85 6 2631 2641 doi 10 1128 JVI 02321 10 PMC 3067937 PMID 21209115 Meier O Greber UF February 2004 Adenovirus endocytosis The Journal of Gene Medicine 6 Suppl 1 S152 S163 doi 10 1002 jgm 553 PMID 14978758 S2CID 22241820 Schwartz U Komatsu T Huber C Lagadec F Baumgartl C Silberhorn E et al 2023 Changes in adenoviral chromatin organization precede early gene activation upon infection The EMBO Journal 42 19 e114162 doi 10 15252 embj 2023114162 PMC 10548178 PMID 37641864 a b c Lee CS Bishop ES Zhang R Yu X Farina EM Yan S et al June 2017 Adenovirus Mediated Gene Delivery Potential Applications for Gene and Cell Based Therapies in the New Era of Personalized Medicine Genes amp Diseases 4 2 43 63 doi 10 1016 j gendis 2017 04 001 PMC 5609467 PMID 28944281 Singh G Ismail AM Lee JY Ramke M Lee JS Dyer DW et al February 2019 Divergent Evolution of E1A CR3 in Human Adenovirus Species D Viruses 11 2 143 doi 10 3390 v11020143 PMC 6409611 PMID 30744049 a b Yamamoto H Shimojo H August 1971 Multiplicity reactivation of human adenovirus type 12 and simian virus 40 irradiated by ultraviolet light Virology 45 2 529 31 doi 10 1016 0042 6822 71 90355 2 PMID 4328814 Michod RE Bernstein H Nedelcu AM May 2008 Adaptive value of sex in microbial pathogens Infection Genetics and Evolution 8 3 267 85 doi 10 1016 j meegid 2008 01 002 PMID 18295550 Wang CC Prather KA Sznitman J Jimenez JL Lakdawala SS Tufekci Z et al August 2021 Airborne transmission of respiratory viruses Science 373 6558 eabd9149 doi 10 1126 science abd9149 PMC 8721651 PMID 34446582 Wan YY Leon RP Marks R Cham CM Schaack J Gajewski TF et al December 2000 Transgenic expression of the coxsackie adenovirus receptor enables adenoviral mediated gene delivery in naive T cells Proceedings of the National Academy of Sciences of the United States of America 97 25 13784 13789 Bibcode 2000PNAS 9713784W doi 10 1073 pnas 250356297 PMC 17653 PMID 11095726 Chen LH Wu ZQ Hu YF Yang F Yang J Jin Q June 2012 Genetic diversity of adenoviruses in bats of China Bing du Xue Bao Chinese Journal of Virology 28 4 403 8 PMID 22978165 Li Y Ge X Zhang H Zhou P Zhu Y Zhang Y et al April 2010 Host range prevalence and genetic diversity of adenoviruses in bats Journal of Virology 84 8 3889 97 doi 10 1128 JVI 02497 09 PMC 2849498 PMID 20089640 a b Fenner FJ Gibbs EP Murphy FA Rott R Studdert MJ White DO 1993 Veterinary Virology 2nd ed Academic Press Inc ISBN 978 0 12 253056 2 Goldstein T Colegrove KM Hanson M Gulland FM May 2011 Isolation of a novel adenovirus from California sea lions Zalophus californianus Diseases of Aquatic Organisms 94 3 243 8 doi 10 3354 dao02321 PMID 21790072 Inclusion Body Hepatitis and Hepatitis Hydropericardium Syndrome in Poultry Poultry Veterinary Manual Kumar R Kumar V Asthana M Shukla SK Chandra R January 2010 Isolation and identification of a fowl adenovirus from wild Black Kites Milvus migrans Journal of Wildlife Diseases 46 1 272 6 doi 10 7589 0090 3558 46 1 272 PMID 20090043 Chen EC Yagi S Kelly KR Mendoza SP Tarara RP Canfield DR et al July 2011 Nemerow GR ed Cross species transmission of a novel adenovirus associated with a fulminant pneumonia outbreak in a new world monkey colony PLOS Pathogens 7 7 e1002155 doi 10 1371 journal ppat 1002155 PMC 3136464 PMID 21779173 a b Adenovirus Prevention and Treatment CDC 2019 09 03 USAMRMC protects Soldiers against unseen enemy Default Stanford Children s Health Archived from the original on April 3 2020 Adenovirus Clinical Diagnosis CDC 2019 08 29 Croup The Lecturio Medical Concept Library 30 April 2020 Retrieved 11 July 2021 Uhnoo I Svensson L Wadell G September 1990 Enteric adenoviruses Bailliere s Clinical Gastroenterology 4 3 627 42 doi 10 1016 0950 3528 90 90053 j PMID 1962727 Burkholder A 2007 12 19 A killer cold Even the healthy may be vulnerable CNN Retrieved 2007 12 19 Hosseini SM Mirhosseini SM Taghian M Salehi M Farahani MM Bakhtiari F et al October 2018 First evidence of the presence of adenovirus type 8 in myocardium of patients with severe idiopathic dilated cardiomyopathy Archives of Virology 163 10 2895 2897 doi 10 1007 s00705 018 3942 3 PMID 30022238 S2CID 49870344 Fox M January 28 2018 Adenovirus looks like flu acts like flu but it s not influenza NBC News Thacker EE Nakayama M Smith BF Bird RC Muminova Z Strong TV et al November 2009 A genetically engineered adenovirus vector targeted to CD40 mediates transduction of canine dendritic cells and promotes antigen specific immune responses in vivo Vaccine 27 50 7116 24 doi 10 1016 j vaccine 2009 09 055 PMC 2784276 PMID 19786146 Harrington KJ Vile RG Pandha HS eds May 2008 Viral Therapy of Cancer Hoboken N J Wiley pp 1 13 ISBN 9780470019221 Xin KQ Sekimoto Y Takahashi T Mizuguchi H Ichino M Yoshida A et al May 2007 Chimeric adenovirus 5 35 vector containing the clade C HIV gag gene induces a cross reactive immune response against HIV Vaccine 25 19 3809 15 doi 10 1016 j vaccine 2007 01 117 PMID 17386962 Naskalska A Szolajska E Chaperot L Angel J Plumas J Chroboczek J December 2009 Influenza recombinant vaccine matrix protein M1 on the platform of the adenovirus dodecahedron Vaccine 27 52 7385 93 doi 10 1016 j vaccine 2009 09 021 PMID 19766576 Nobrega C 2020 A handbook of gene and cell therapy Liliana Mendonca Carlos A Matos Cham Springer ISBN 978 3 030 41333 0 OCLC 1163431307 Cross R 12 May 2020 Adenoviral vectors are the new COVID 19 vaccine front runners Can they overcome their checkered past Chemical amp Engineering News 98 19 Retrieved 15 December 2020 a b Cohen J 19 October 2020 Could certain COVID 19 vaccines leave people more vulnerable to the AIDS virus American Association for the Advancement of Science Science magazine Retrieved 15 December 2020 Folegatti PM Ewer KJ Aley PK Angus B Becker S Belij Rammerstorfer S et al August 2020 Safety and immunogenicity of the ChAdOx1 nCoV 19 vaccine against SARS CoV 2 a preliminary report of a phase 1 2 single blind randomised controlled trial Lancet 396 10249 467 478 doi 10 1016 S0140 6736 20 31604 4 PMC 7445431 PMID 32702298 The Oxford AstraZeneca COVID 19 vaccine what you need to know www who int Retrieved 2021 03 07 a b An Open Study of the Safety Tolerability and Immunogenicity of the Drug Gam COVID Vac Vaccine Against COVID 19 Clinical Trials 22 June 2020 Retrieved 22 December 2020 a b Zhu FC Li YH Guan XH Hou LH Wang WJ Li JX et al June 2020 Safety tolerability and immunogenicity of a recombinant adenovirus type 5 vectored COVID 19 vaccine a dose escalation open label non randomised first in human trial Lancet 395 10240 1845 1854 doi 10 1016 s0140 6736 20 31208 3 PMC 7255193 PMID 32450106 Experimental Nasal Vaccine Protects Upper and Lower Respiratory Tracts against SARS CoV 2 Sci News 27 August 2020 Retrieved 28 August 2020 Hassan AO Kafai NM Dmitriev IP Fox JM Smith BK Harvey IB et al October 2020 A Single Dose Intranasal ChAd Vaccine Protects Upper and Lower Respiratory Tracts against SARS CoV 2 Cell 183 1 169 184 e13 doi 10 1016 j cell 2020 08 026 PMC 7437481 PMID 32931734 Logunov DY Dolzhikova IV Zubkova OV Tukhvatulin AI Shcheblyakov DV Dzharullaeva AS et al September 2020 Safety and immunogenicity of an rAd26 and rAd5 vector based heterologous prime boost COVID 19 vaccine in two formulations two open non randomised phase 1 2 studies from Russia Lancet 396 10255 887 897 doi 10 1016 S0140 6736 20 31866 3 PMC 7471804 PMID 32896291 Fausther Bovendo H Kobinger GP 2014 Pre existing immunity against Ad vectors humoral cellular and innate response what s important Human Vaccines amp Immunotherapeutics 10 10 2875 84 doi 10 4161 hv 29594 PMC 5443060 PMID 25483662 Collins S 9 December 2020 HIV risk from some COVID 19 vaccines might be unlikely due to rarity of vector viruses involved HIV i BASE Retrieved 15 December 2020 Fauci AS Marovich MA Dieffenbach CW Hunter E Buchbinder SP 2014 04 04 Immune Activation with HIV Vaccines Implications of the Adenovirus Vector Experience Science 344 6179 49 51 doi 10 1126 science 1250672 ISSN 0036 8075 PMC 4414116 PMID 24700849 Rosenberg J 25 October 2020 Researchers Warn of Heightened Risk of HIV With Certain COVID 19 Vaccines AJMC Retrieved 15 December 2020 Buchbinder SP McElrath MJ Dieffenbach C Corey L 2020 10 31 Use of adenovirus type 5 vectored vaccines a cautionary tale Lancet 396 10260 e68 e69 doi 10 1016 S0140 6736 20 32156 5 PMC 7571904 PMID 33091364 Buhl L Most COVID 19 Vaccines Won t Affect HIV Risk Here s What the Science Tells Us Hu H Eller MA Zafar S Zhou Y Gu M Wei Z et al 2014 09 16 Preferential infection of human Ad5 specific CD4 T cells by HIV in Ad5 naturally exposed and recombinant Ad5 HIV vaccinated individuals Proceedings of the National Academy of Sciences of the United States of America 111 37 13439 44 Bibcode 2014PNAS 11113439H doi 10 1073 pnas 1400446111 ISSN 0027 8424 PMC 4169982 PMID 25197078 Auclair S Liu F Niu Q Hou W Churchyard G Morgan C et al 2018 02 23 Distinct susceptibility of HIV vaccine vector induced CD4 T cells to HIV infection PLOS Pathogens 14 2 e1006888 doi 10 1371 journal ppat 1006888 ISSN 1553 7374 PMC 5841825 PMID 29474461 External links edit nbsp Wikimedia Commons has media related to Adenoviridae Portals nbsp Medicine nbsp Viruses Retrieved from https en wikipedia org w index php title Adenoviridae amp oldid 1199322525, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.