Oncolytic adenovirus
Adenovirus varieties have been explored extensively as a viral vector for gene therapy and also as an oncolytic virus.[1]
Of the many different viruses being explored for oncolytic potential, an adenovirus was the first to be approved by a regulatory agency, the genetically modified H101 strain. It gained regulatory approval in 2005 from China's State Food and Drug Administration (SFDA) for the treatment of head and neck cancer.[2][3]
Engineering of oncolytic adenovirus
[edit]Adenoviruses have so far been through three generations of development.[4] Some of the strategies for modification of adenoviruses are described below.
Attenuation
[edit]For adenovirus replication to occur, the host cell must be induced into S phase by viral proteins interfering with cell cycle proteins. The adenoviral E1A gene is responsible for inactivation of several proteins, including retinoblastoma, allowing entry into S-phase. The adenovirus E1B55kDa gene cooperates with another adenoviral product, E4ORF6, to inactivate p53, thus preventing apoptosis. It was initially proposed that an adenovirus mutant lacking the E1B55kDa gene, dl1520 (ONYX-015), could replicate selectively in p53 deficient cells.[citation needed]
A conditionally replicative adenovirus (CRAd) with a 24 base pair deletion in the retinoblastoma-binding domain of the E1A protein (Ad5- Δ24E3), is unable to silence retinoblastoma, and therefore unable to induce S-phase in host cells.[5] This restricts Ad5-Δ24E3 to replication only in proliferating cells, such as tumour cells.[citation needed]
Targeting
[edit]The most commonly used group of adenoviruses is serotype 5 (Ad5), whose binding to host cells is initiated by interactions between the cellular coxsackie virus and adenovirus receptor (CAR), and the knob domain of the adenovirus coat protein trimer. CAR is necessary for adenovirus infection.[6] Although expressed widely in epithelial cells, CAR expression in tumours is extremely variable, leading to resistance to Ad5 infection.[6] Retargeting of Ad5 from CAR, to another receptor that is ubiquitously expressed on cancer cells, may overcome this resistance.[6]
- Adapter molecules
- Bi-specific adapter molecules can be administered along with the virus to redirect viral coat protein tropism. These molecules are fusion proteins that are made up of an antibody raised against the knob domain of the adenovirus coat protein, fused to a natural ligand for a cell-surface receptor.[7] The use of adapter molecules has been shown to increase viral transduction. However, adapters add complexity to the system, and the effect of adapter molecule binding on the stability of the virus is uncertain.[citation needed]
- Coat-protein modification
- This method involves genetically modifying the fiber knob domain of the viral coat protein to alter its specificity. Short peptides added to the C-terminal end of the coat protein successfully altered viral tropism.[8] The addition of larger peptides to the C-terminus is not viable because it reduces adenovirus integrity, possibly due to an effect on fiber trimerisation. The fiber protein also contains an HI-loop structure, which can tolerate peptide insertions of up to 100 residues without any negative effects on adenovirus integrity. An RGD motif inserted into the HI loop of the fiber knob protein, shifts specificity toward integrins, which are frequently over-expressed in oesophageal adenocarcinoma.[8][9] When combined with a form of non-transductional targeting, these viruses proved to be effective and selective therapeutic agents for Oesophageal Adenocarcinoma.[citation needed]
- Transcriptional targeting
- This approach takes advantage of deregulated promoter to drive and control the expression of adenoviral genes. For instance, Cyclooxygenase-2 enzyme (Cox-2) expression is elevated in a range of cancers, and has low liver expression, making it a suitable tumour-specific promoter. AdCox2Lluc is a CRAd targeted against oesophageal adenocarcinoma by placing the early genes under the control of a Cox-2 promoter (adenoviruses have two early genes, E1A and E1B, that are essential for replication).[9] When combined with transductional targeting, AdCox2Lluc showed potential for treatment of Oesophageal Adenocarcinoma. Cox-2 is also a possible tumour-specific promoter candidate for other cancer types, including ovarian cancer.[citation needed]
- A suitable tumour-specific promoter for prostate cancer is prostate-specific antigen (PSA), whose expression is greatly elevated in prostate cancer. CN706 is a CRAd with a PSA tumour-specific promoter driving expression of the adenoviral E1A gene, required for viral replication. The CN706 titre is significantly greater in PSA-positive cells.[10]
- Post-Transcriptional detargeting
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Oncolytic_adenovirus_controlled_by_microRNA_response_element.png/400px-Oncolytic_adenovirus_controlled_by_microRNA_response_element.png)
- Another layer of regulation that has emerged to control adenoviral replication is the use of microRNAs (miRNA) artificial target sites or miRNA response elements (MREs). Differential expression of miRNAs between healthy tissues and tumors permit to engineer oncolytic viruses in order to have their ability to replicate impaired in those tissues of interest while allowing its replication in the tumor cells.
Tissue/cell-type | Enriched miRNA | Use of the MRE | References |
---|---|---|---|
Liver | miR-122 | Prevent liver toxicity, hepatotoxicity | [11] |
Muscle | miR-133, miR-206 | Prevent muscle inflammation, myositis | [12] |
Pancreas | miR-148a | Promote pancreatic tumor targeting | [13] |
Prostate | miR-143, miR-145 | Promote prostate tumor targeting | [14] |
Neuron | miR-124 | Promote astrocyte targeting | [15] |
Arming with Transgenes
To enhance the efficacy, therapeutic transgenes are integrated into oncolytic adenovirus[16]
- stimulation of immune response
Immunostimulatory genes Like interferon α (IFNα),[17] tumor necrosis factor alpha (TNFα),[18] and interleukin 12 (IL-12)[19] have been integrated into oncolytic adenovirus to enhance immune response inside the tumor microenvironment. When these molecules selectively expressed in tumor cells, oncolytic adenoviruses promote immune responses against tumor and minimize systemic side effects [20]
- Enhancement of Ag presentation
Oncolytic adenoviruses have been genetically modified with transgene encoding for granulocyte-macrophage colony-stimulating factor (GM-CSF) to enhance tumor antigens presentation by antigen-presenting cells (APCs). This approach aims to improve recognition of tumor by T-cell and subsequent immune responses [21],[22]
- Targeting costimulatory and Immune Checkpoints on T-cells
Oncolytic adenoviruses have been genetically engineered to express checkpoint inhibitors (CTLA-4, anti-PD-L1 antibodies) to release brake of T-cell activity [23],[24] and to express costimulatory molecules (CD40L, 4-1BBL) to augment T-cell activation and proliferation[25],[26]
Examples
[edit]Oncorine (H101)
[edit]H101 and the very similar Onyx-015 have been engineered to remove a viral defense mechanism that interacts with a normal human gene p53, which is very frequently dysregulated in cancer cells.[3] Despite the promises of early in vivo lab work, these viruses do not specifically infect cancer cells, but they still kill cancer cells preferentially.[3] While overall survival rates are not known, short-term response rates are approximately doubled for H101 plus chemotherapy when compared to chemotherapy alone.[3] It appears to work best when injected directly into a tumour, and when any resulting fever is not suppressed.[3] Systemic therapy (such as through infusion through an intravenous line) is desirable for treating metastatic disease.[27] It is now marketed under the brand name Oncorine.[28]
Onyx-015 (dl1520)
[edit]Onyx-015 (originally named Ad2/5 dl1520[29][30]) is an experimental oncolytic virus created by genetically engineering an adenovirus.[29][31] It has been trialed as a possible treatment for cancer. The E1B-55kDa gene has been deleted allowing the virus to selectively replicate in and lyse p53-deficient cancer cells.[32]
Directed Evolution
[edit]Traditional research has focussed on species C Adenovirus serotype 5 (Ad5) for creating oncolytic vaccines for the potential use as cancer treatment. However, recent data suggests that it may not be the best virus serotype for deriving all oncolytic agents for treating human malignancies.[33] For example, oncolytic vaccines based on the Ad5 serotype have relatively poor clinical efficacy as monotherapies.[34][35][36][37] The need for increased potency (infectivity and lytic activity) has led to an expanded search involving a larger number of less well studied adenovirus serotypes.[citation needed]
ColoAd1
[edit]One non-species C oncolytic adenovirus currently in development is ColoAd1. It was created using a process of “directed evolution”. This involves the creation of new viral variants or serotypes specifically directed against tumour cells via rounds of directed selection using large populations of randomly generated recombinant precursor viruses. The increased biodiversity produced by the initial homologous recombination step provides a large random pool of viral candidates which can then be passed through a series of selection steps designed to lead towards a pre-specified outcome (e.g. higher tumor specific activity) without requiring any previous knowledge of the resultant viral mechanisms that are responsible for that outcome.[38] One particular application of this approach produced ColoAd1, which is a novel Ad11p/Ad3 chimeric Group B oncolytic virus with specificity for human colon cancer and a broad spectrum of anti-cancer activity in common solid tumours.[38] The therapeutic efficacy of ColoAd1 is currently being evaluated in three ongoing clinical trials (see the EU Clinical Trials Register for further details). ColoAd1 potency can be further enhanced via the use of therapeutic transgenes, which can be introduced into the ColoAd1 genome without compromising the selectivity or activity of the virus. Recent studies with ColoAd1 have shown a unique mechanism of cell death similar to Oncosis with expression of inflammatory cell death markers and cell membrane blistering and have highlighted mechanisms by which ColoAd1 alters host cell metabolism to facilitate replication.[39][40]
Background
[edit]Tumours form in cells when mutations in genes involved in cell cycle control and apoptosis accumulate over time.[41] Most tumours studied, have defects in the p53 tumor suppressor pathway.[42] p53 is a transcription factor that plays a role in apoptosis, cell cycle and DNA repair. It blocks cell progression in response to cellular stress or DNA damage. Many viruses replicate by altering the cell cycle and exploiting the same pathways that are altered in cancer cells.[43] E1B proteins produced by adenoviruses protect the infected cell by binding to and degrading the p53 transcription factors,[44] preventing it from targeting the cell for apoptosis. This allows the virus to replicate, package its genome, lyse the cell and spread to new cells.[citation needed]
This gave rise to the idea that an altered adenovirus could be used to target and eliminate cancer cells. Onyx-015 is an adenovirus that was developed in 1987 with the function of the E1B gene knocked out,[45] meaning cells infected with Onyx-015 are incapable of blocking p53's function. If Onyx-015 infects a normal cell, with a functioning p53 gene, it will be prevented from multiplying by the action of the p53 transcription factor. However, if Onyx-015 infects a p53 deficient cell it should be able to survive and replicate, resulting in selective destruction of cancer cells.
Clinical trials
[edit]There are as of 2023 several ongoing and finished clinical trial testing oncolytic adenoviruses.[46][47][48]
ColoAd1 from PsiOxus Therapeutics has entered Phase I/II clinical study with its oncolytic vaccine. Phase I of the trial recruited patients with metastatic solid tumors and showed evidence for virus replication within tumour sites after intravenous delivery. The second phase of the ColoAd1 study will involve the comparison of intra-tumoural versus intravenous injection to examine viral replication, viral spread, tumour necrosis and anti-tumoural immune responses (see the EU Clinical Trials Register for further details).
ONYX-015 (dl1520)/H101
[edit]Patents for the therapeutic use of ONYX-015 are held by ONYX Pharmaceuticals[49][50] and it was used in combination with the standard chemotherapeutic agents cisplatin and 5-fluorouracil to combat head and neck tumours.[51] Onyx-015 has been extensively tested in clinical trials, with the data indicating that it is safe and selective for cancer.[52] However, limited therapeutic effect has been demonstrated following injection and systemic spread of the virus was not detected.[53] ONYX-015 when combined with chemotherapy, however, proved reasonably effective in a proportion of cases. During these trials a plethora of reports emerged challenging the underlying p53-selectivity, with some reports showing that in some cancers with a wild-type p53 ONYX-015 actually did better than in their mutant p53 counterparts. These reports slowed the advancement through Phase III trials in the US, however recently China licensed ONYX-015 for therapeutic use as H101.[54] Further development of Onyx-015 was abandoned in the early 2000s, the exclusive rights being licensed to the Chinese company, Shanghai Sunway Biotech. On November 17, 2005, the Chinese State Food and Drug Administration approved H101, an oncolytic adenovirus similar to Onyx-015 (E1B-55K/E3B-deleted), for use in combination with chemotherapy for the treatment of late-stage refractory nasopharyngeal cancer.[55][56] Outside of China, the push to the clinic for ONYX-015 has been largely been discontinued for financial reasons and until a real mechanism can be found.[57]
See also
[edit]References
[edit]- ^ Harrington KJ, Pandha H, Vile RG, eds. (2008). Viral therapy of cancer. Chichester, England ; Hoboken, NJ: John Wiley & Sons. pp. 1–13. ISBN 978-0-470-01922-1. OCLC 183831087.
- ^ Frew SE, Sammut SM, Shore AF, Ramjist JK, Al-Bader S, Rezaie R, Daar AS, Singer PA (2008). "Chinese health biotech and the billion-patient market". Nature Biotechnology. 26 (1): 37–53. doi:10.1038/nbt0108-37. PMC 7096943. PMID 18183014.
- ^ a b c d e Garber K (2006). "China Approves World's First Oncolytic Virus Therapy for Cancer Treatment". JNCI Journal of the National Cancer Institute. 98 (5): 298–300. doi:10.1093/jnci/djj111. PMID 16507823.
- ^ Doronin K, Shayakhmetov, DM (2012). "Construction of Targeted and Armed Oncolytic Adenoviruses". Oncolytic Viruses. Methods in Molecular Biology. Vol. 797. pp. 35–52. doi:10.1007/978-1-61779-340-0_3. ISBN 978-1-61779-339-4. PMID 21948467.
- ^ Carette JE, Overmeer RM, Schagen FH, Alemany R, Barski OA, Gerritsen WR, Van Beusechem VW (2004). "Conditionally Replicating Adenoviruses Expressing Short Hairpin RNAs Silence the Expression of a Target Gene in Cancer Cells". Cancer Research. 64 (8): 2663–7. doi:10.1158/0008-5472.CAN-03-3530. PMID 15087375.
- ^ a b c Li Y, Pong RC, Bergelson JM, Hall MC, Sagalowsky AI, Tseng CP, Wang Z, Hsieh JT (1999). "Loss of adenoviral receptor expression in human bladder cancer cells: A potential impact on the efficacy of gene therapy". Cancer Research. 59 (2): 325–30. PMID 9927041.
- ^ Everts M, Curiel, DT (September 2004). "Transductional targeting of adenoviral cancer gene therapy". Current Gene Therapy. 4 (3): 337–46. doi:10.2174/1566523043346372. PMID 15384947.
- ^ a b Wickham TJ (2003). "Ligand-directed targeting of genes to the site of disease". Nature Medicine. 9 (1): 135–9. doi:10.1038/nm0103-135. PMID 12514727. S2CID 5381985.
- ^ a b Davydova J, Le LP, Gavrikova T, Wang M, Krasnykh V, Yamamoto M (2004). "Infectivity-Enhanced Cyclooxygenase-2-Based Conditionally Replicative Adenoviruses for Esophageal Adenocarcinoma Treatment". Cancer Research. 64 (12): 4319–27. doi:10.1158/0008-5472.CAN-04-0064. PMID 15205347.
- ^ Rodriguez R, Schuur ER, Lim HY, Henderson GA, Simons JW, Henderson DR (1997). "Prostate attenuated replication competent adenovirus (ARCA) CN706: A selective cytotoxic for prostate-specific antigen-positive prostate cancer cells". Cancer Research. 57 (13): 2559–63. PMID 9205053.
- ^ Ylösmäki E (2008). "Generation of a conditionally replicating adenovirus based on targeted destruction of E1A mRNA by a cell type-specific MicroRNA". Journal of Virology. 82 (22): 11009–11015. doi:10.1128/JVI.01608-08. PMC 2573287. PMID 18799589.
- ^ Kelly EJ (2008). "Engineering microRNA responsiveness to decrease virus pathogenicity". Nature Medicine. 14 (11): 1278–1283. doi:10.1038/nm.1776. PMID 18953352.
- ^ Bofill-De Ros X (2014). "MiR-148a- and miR-216a-regulated Oncolytic Adenoviruses Targeting Pancreatic Tumors Attenuate Tissue Damage Without Perturbation of miRNA Activity". Molecular Therapy. 22 (9): 1665–1677. doi:10.1038/mt.2014.98. PMC 4435498. PMID 24895996.
- ^ Lee CY (2009). "MicroRNA regulation of oncolytic herpes simplex virus-1 for selective killing of prostate cancer cells". Clinical Cancer Research. 15 (16): 5126–5135. doi:10.1158/1078-0432.ccr-09-0051. PMID 19671871. S2CID 800019.
- ^ Colin A (2009). "Engineered lentiviral vector targeting astrocytes in vivo". Glia. 57 (6): 667–679. doi:10.1002/glia.20795. PMID 18942755. S2CID 5006543.
- ^ Doronin K, Shayakhmetov DM (2012). "Construction of Targeted and Armed Oncolytic Adenoviruses". Oncolytic Viruses. Methods in Molecular Biology. Vol. 797. pp. 35–52. doi:10.1007/978-1-61779-340-0_3. ISBN 978-1-61779-339-4. PMID 21948467.
- ^ Shashkova EV, Spencer JF, Wold WS, Doronin K (2007). "Targeting Interferon-α Increases Antitumor Efficacy and Reduces Hepatotoxicity of E1A-mutated Spread-enhanced Oncolytic Adenovirus". Molecular Therapy. 15 (3): 598–607. doi:10.1038/sj.mt.6300064.
- ^ Hirvinen M, Rajecki M, Kapanen M, Parviainen S, Rouvinen-Lagerström N, Diaconu I, Nokisalmi P, Tenhunen M, Hemminki A, Cerullo V (2015). "Immunological Effects of a Tumor Necrosis Factor Alpha–Armed Oncolytic Adenovirus". Human Gene Therapy. 26 (3): 134–144. doi:10.1089/hum.2014.069. PMID 25557131.
- ^ Bortolanza S, Bunuales M, Otano I, Gonzalez-Aseguinolaza G, Ortiz-De-Solorzano C, Perez D, Prieto J, Hernandez-Alcoceba R (2009). "Treatment of Pancreatic Cancer with an Oncolytic Adenovirus Expressing Interleukin-12 in Syrian Hamsters". Molecular Therapy. 17 (4): 614–622. doi:10.1038/mt.2009.9. PMC 2835109. PMID 19223865.
- ^ Peter, Malin, Kühnel, Florian (2020). "Oncolytic Adenovirus in Cancer Immunotherapy". Cancers. 12 (11): 3354. doi:10.3390/cancers12113354. PMC 7697649. PMID 33202717.
- ^ Ramesh N, Ge Y, Ennist DL, Zhu M, Mina M, Ganesh S, Reddy PS, Yu DC (2006). "CG0070, a Conditionally Replicating Granulocyte Macrophage Colony-Stimulating Factor–Armed Oncolytic Adenovirus for the Treatment of Bladder Cancer". Clinical Cancer Research. 12 (1): 305–313. doi:10.1158/1078-0432.CCR-05-1059. PMID 16397056. S2CID 2071049.
- ^ Cerullo V, Pesonen S, Diaconu I, Escutenaire S, Arstila PT, Ugolini M, Nokisalmi P, Raki M, Laasonen L, Särkioja M, Rajecki M, Kangasniemi L, Guse K, Helminen A, Ahtiainen L, Ristimäki A, Räisänen-Sokolowski A, Haavisto E, Oksanen M, Karli E, Karioja-Kallio A, Holm SL, Kouri M, Joensuu T, Kanerva A, Hemminki A (2010). "Oncolytic Adenovirus Coding for Granulocyte Macrophage Colony-Stimulating Factor Induces Antitumoral Immunity in Cancer Patients". Cancer Research. 70 (11): 4297–4309. doi:10.1158/0008-5472.CAN-09-3567. PMID 20484030.
- ^ Dias JD, Hemminki O, Diaconu I, Hirvinen M, Bonetti A, Guse K, Escutenaire S, Kanerva A, Pesonen S, Löskog A, Cerullo V, Hemminki A (2012). "Targeted cancer immunotherapy with oncolytic adenovirus coding for a fully human monoclonal antibody specific for CTLA-4". Gene Therapy. 19 (10): 988–998. doi:10.1038/gt.2011.176. PMID 22071969. S2CID 6824405.
- ^ Tanoue K, Rosewell Shaw A, Watanabe N, Porter C, Rana B, Gottschalk S, Brenner M, Suzuki M (2017). "Armed Oncolytic Adenovirus–Expressing PD-L1 Mini-Body Enhances Antitumor Effects of Chimeric Antigen Receptor T Cells in Solid Tumors". Cancer Research. 77 (8): 2040–2051. doi:10.1158/0008-5472.CAN-16-1577. PMC 5392365. PMID 28235763.
- ^ Fernandes MS, Gomes EM, Butcher LD, Hernandez-Alcoceba R, Chang D, Kansopon J, Newman J, Stone MJ, Tong AW (1 August 2009). "Growth Inhibition of Human Multiple Myeloma Cells by an Oncolytic Adenovirus Carrying the CD40 Ligand Transgene". Clinical Cancer Research. 15 (15): 4847–4856. doi:10.1158/1078-0432.CCR-09-0451. PMID 19622582.
- ^ Eriksson E, Milenova I, Wenthe J, Ståhle M, Leja-Jarblad J, Ullenhag G, Dimberg A, Moreno R, Alemany R, Loskog A (1 October 2017). "Shaping the Tumor Stroma and Sparking Immune Activation by CD40 and 4-1BB Signaling Induced by an Armed Oncolytic Virus". Clinical Cancer Research. 23 (19): 5846–5857. doi:10.1158/1078-0432.CCR-17-0285. PMID 28536305.
- ^ Ayllón Barbellido S, Campo Trapero J, Cano Sánchez J, Perea García MA, Escudero Castaño N, Bascones Martínez A (2008). "Gene therapy in the management of oral cancer: Review of the literature" (PDF). Medicina Oral, Patologia Oral y Cirugia Bucal. 13 (1): E15–21. PMID 18167474.
- ^ Guo J, Xin, H (Nov 24, 2006). "Chinese gene therapy. Splicing out the West?". Science. 314 (5803): 1232–5. doi:10.1126/science.314.5803.1232. PMID 17124300. S2CID 142897522.
- ^ a b Barker DD, Berk AJ (1987). "Adenovirus proteins from both E1B reading frames are required for transformation of rodent cells by viral infection and DNA transfection". Virology. 156 (1): 107–121. doi:10.1016/0042-6822(87)90441-7. PMID 2949421.
- ^ Heise C, Sampson-Johannes A, Williams A, Mccormick F, Von Hoff DD, Kirn DH (June 1997). "ONYX-015, an E1B gene-attenuated adenovirus, causes tumor-specific cytolysis and antitumoral efficacy that can be augmented by standard chemotherapeutic agents". Nature Medicine. 3 (6): 639–645. doi:10.1038/nm0697-639. PMID 9176490. S2CID 7418713.
- ^ "Facebook".
- ^ John Nemunaitis, Ian Ganly, Fadlo Khuri, James Arseneau, Joseph Kuhn, Todd McCarty, Stephen Landers, Phillip Maples, Larry Rome, Britta Randlev, Tony Reid, Sam Kaye, David Kirn (2000). "Selective Replication and Oncolysis in p53 Mutant Tumors with ONYX-015, an E1B-55kD Gene-deleted Adenovirus, in Patients with Advanced Head and Neck Cancer: A Phase II Trial". Cancer Res. 60 (22): 6359–66. PMID 11103798.
- ^ Parato KA, Senger D, Forsyth PA, Bell JC. Recent progress in the battle between oncolytic viruses and tumours" Nat Rev Cancer 2005;5:965–976.
- ^ Kirn D (2001). "Oncolytic virotherapy for cancer with the adenovirus dl1520 (Onyx-015) results of phase I and II trials". Expert Opin Biol Ther. 1 (3): 525–538. doi:10.1517/14712598.1.3.525. PMID 11727523. S2CID 39588407.
- ^ Yu DC, Working P, Ando D (2002). "Selectively replicating oncolytic adenoviruses as cancer therapeutics". Curr Opin Mol Ther. 4 (5): 435–443. PMID 12435044.
- ^ Reid T, Warren R, Kirn D (2002). "Intravascular adenoviral agents in cancer patients: lessons from clinical trials". Cancer Gene Ther. 9 (12): 979–986. doi:10.1038/sj.cgt.7700539. PMC 7091735. PMID 12522437.
- ^ Freytag SO, Khil M, Stricker H, Peabody J, Menon M, et al. (2002). "Phase I study of replication-competent adenovirus-mediated double suicide gene therapy for the treatment of locally recurrent prostate cancer". Cancer Res. 62 (17): 4968–4976. PMID 12208748.
- ^ a b Kuhn I, Harden P, Bauzon M, Chartier C, Nye J, Thorne S, Reid T, Ni S, Lieber A, Fisher K, Seymour L, Rubanyi GM, Harkins RN, Hermiston TW (2008). "Directed evolution generates a novel oncolytic virus for the treatment of colon cancer". PLOS ONE. 3 (6): e2409. Bibcode:2008PLoSO...3.2409K. doi:10.1371/journal.pone.0002409. PMC 2423470. PMID 18560559.
- ^ Dyer A, Di Y, Calderon H, Illingworth S, Kueberuwa G, Tedcastle A, Jakeman P, Chia SL, Brown A, Silva M, Barlow D, Beadle J, Hermiston T, Ferguson D, Champion B, Fisher K, Seymour L (2017). "Oncolytic Group B Adenovirus Enadenotucirev Mediates Non-apoptotic Cell Death with Membrane Disruption and Release of Inflammatory Mediators". Molecular Therapy Oncolytics. 4: 18–30. doi:10.1016/j.omto.2016.11.003. PMC 5363721. PMID 28345021.
- ^ Dyer A, Schoeps B, Frost S, Jakeman P, Scott EM, Freedman J, Jacobus EJ, Seymour LW (2019-01-15). "Antagonism of Glycolysis and Reductive Carboxylation of Glutamine Potentiates Activity of Oncolytic Adenoviruses in Cancer Cells". Cancer Research. 79 (2): 331–345. doi:10.1158/0008-5472.CAN-18-1326. ISSN 1538-7445. PMID 30487139. S2CID 54162449.
- ^ Vogelstein B, Kinzler K (1993). "The multistep nature of cancer". Trends in Genetics. 9 (4): 138–141. doi:10.1016/0168-9525(93)90209-Z. PMID 8516849.
- ^ Levine A (1997). "P53, the Cellular Gatekeeper for Growth and Division". Cell. 88 (3): 323–331. doi:10.1016/S0092-8674(00)81871-1. PMID 9039259.
- ^ Ries S, Korn W (2002). "ONYX-015: mechanisms of action and clinical potential of a replication-selective adenovirus". British Journal of Cancer. 86 (1): 5–11. doi:10.1038/sj.bjc.6600006. PMC 2746528. PMID 11857003.
- ^ Yew P, Berk A (1992). "Inhibition of p53 transactivation required for transformation by adenovirus early 1B protein". Nature. 357 (6373): 82–85. Bibcode:1992Natur.357...82Y. doi:10.1038/357082a0. PMID 1533443. S2CID 4338026.
- ^ Barker DD, Berk AJ (1987). "Adenovirus proteins from both E1B reading frames are required for transformation of rodent cells by viral infection and DNA transfection". Virology. 156 (1): 107–121. doi:10.1016/0042-6822(87)90441-7. PMID 2949421.
- ^ Zhao Y, Liu Z, Li L, Wu J, Zhang H, Zhang H, Lei T, Xu B (2021). "Oncolytic Adenovirus: Prospects for Cancer Immunotherapy". Frontiers in Microbiology. 12: 707290. doi:10.3389/fmicb.2021.707290. PMC 8334181. PMID 34367111.
- ^ Peter M, Kühnel F (2020). "Oncolytic Adenovirus in Cancer Immunotherapy". Cancers. 12 (11): 3354. doi:10.3390/cancers12113354. PMC 7697649. PMID 33202717.
- ^ "CTG Labs - NCBI". clinicaltrials.gov.
- ^ Bischoff JR, Kirn DH, Williams A, Heise C, Horn S, Muna M, Ng L, Nye JA, Sampson-Johannes A, Fattaey A, McCormick F (1996). "An Adenovirus Mutant That Replicates Selectively in p53- Deficient Human Tumor Cells". Science. 274 (5286): 373–376. Bibcode:1996Sci...274..373B. doi:10.1126/science.274.5286.373. PMID 8832876. S2CID 27240699.
- ^ US patent 5677178, McCormick; Francis, "Cytopathic viruses for therapy and prophylaxis of neoplasia", issued 1997-10-14
- ^ Khuri F, Nemunaitis J, Ganly I, Arseneau J, Tannock I, Romel L, Gore M, Ironside J, MacDougall R, Heise C, Randlev B, Gillenwater AM, Bruso P, Kaye SB, Hong WK, Kirn DH (2000). "A controlled trial of intratumoral ONYX-015, a selectively-replicating adenovirus, in combination with cisplatin and 5-fluorouracil in patients with recurrent head and neck cancer". Nature Medicine. 6 (8): 879–885. doi:10.1038/78638. PMID 10932224. S2CID 3199209.
- ^ Kirn D, Thorne S (2009). "Targeted and armed oncolytic poxviruses: a novel multi-mechanistic therapeutic class for cancer". Nature Reviews. Cancer. 9 (1): 64–71. doi:10.1038/nrc2545. PMID 19104515. S2CID 20344137.
- ^ Liu T, Hwang T, Bell J, Kirn D (2008). "Translation of targeted oncolytic virotherapeutics from the lab into the clinic, and back again: a high-value iterative loop". Molecular Therapy. 16 (6): 1006–1008. doi:10.1038/mt.2008.70. PMID 18500240.
- ^ Moon Crompton A, Kirn DH (2007). "From ONYX-015 to Armed Vaccinia Viruses: The Education and Evolution of Oncolytic Virus Development". Current Cancer Drug Targets. 7 (2): 133–9. doi:10.2174/156800907780058862. PMID 17346104.
- ^ Liu T, Kirn D (2008). "Gene therapy progress and prospects cancer: oncolytic viruses". Gene Therapy. 15 (12): 877–884. doi:10.1038/gt.2008.72. PMID 18418413.
- ^ "International Approvals: Procoralan, H101, AP2573". Medscape.
- ^ "Onyx Increases Development Focus on Bay 43-9006" (Press release). Onyx Pharma. 27 February 2003. Archived from the original on 16 October 2006. Retrieved 25 July 2006.