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Du J, Dong Y, Zuo W, Deng Y, Zhu H, Yu Q, Li M. Mec1-Rad53 Signaling Regulates DNA Damage-Induced Autophagy and Pathogenicity in Candida albicans. J Fungi (Basel) 2023; 9:1181. [PMID: 38132782 PMCID: PMC10744610 DOI: 10.3390/jof9121181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
DNA damage activates the DNA damage response and autophagy in C. albicans; however, the relationship between the DNA damage response and DNA damage-induced autophagy in C. albicans remains unclear. Mec1-Rad53 signaling is a critical pathway in the DNA damage response, but its role in DNA damage-induced autophagy and pathogenicity in C. albicans remains to be further explored. In this study, we compared the function of autophagy-related (Atg) proteins in DNA damage-induced autophagy and traditional macroautophagy and explored the role of Mec1-Rad53 signaling in regulating DNA damage-induced autophagy and pathogenicity. We found that core Atg proteins are required for these two types of autophagy, while the function of Atg17 is slightly different. Our results showed that Mec1-Rad53 signaling specifically regulates DNA damage-induced autophagy but has no effect on macroautophagy. The recruitment of Atg1 and Atg13 to phagophore assembly sites (PAS) was significantly inhibited in the mec1Δ/Δ and rad53Δ/Δ strains. The formation of autophagic bodies was obviously affected in the mec1Δ/Δ and rad53Δ/Δ strains. We found that DNA damage does not induce mitophagy and ER autophagy. We also identified two regulators of DNA damage-induced autophagy, Psp2 and Dcp2, which regulate DNA damage-induced autophagy by affecting the protein levels of Atg1, Atg13, Mec1, and Rad53. The deletion of Mec1 or Rad53 significantly reduces the ability of C. albicans to systematically infect mice and colonize the kidneys, and it makes C. albicans more susceptible to being killed by macrophages.
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Affiliation(s)
| | | | | | | | | | | | - Mingchun Li
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University, 94 Weijin Road, Nankai District, Tianjin 300071, China; (J.D.); (Y.D.); (W.Z.); (Y.D.); (H.Z.); (Q.Y.)
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2
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Lin D, Shen Y, Liang T. Oncolytic virotherapy: basic principles, recent advances and future directions. Signal Transduct Target Ther 2023; 8:156. [PMID: 37041165 PMCID: PMC10090134 DOI: 10.1038/s41392-023-01407-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 04/13/2023] Open
Abstract
Oncolytic viruses (OVs) have attracted growing awareness in the twenty-first century, as they are generally considered to have direct oncolysis and cancer immune effects. With the progress in genetic engineering technology, OVs have been adopted as versatile platforms for developing novel antitumor strategies, used alone or in combination with other therapies. Recent studies have yielded eye-catching results that delineate the promising clinical outcomes that OVs would bring about in the future. In this review, we summarized the basic principles of OVs in terms of their classifications, as well as the recent advances in OV-modification strategies based on their characteristics, biofunctions, and cancer hallmarks. Candidate OVs are expected to be designed as "qualified soldiers" first by improving target fidelity and safety, and then equipped with "cold weapons" for a proper cytocidal effect, "hot weapons" capable of activating cancer immunotherapy, or "auxiliary weapons" by harnessing tactics such as anti-angiogenesis, reversed metabolic reprogramming and decomposing extracellular matrix around tumors. Combinations with other cancer therapeutic agents have also been elaborated to show encouraging antitumor effects. Robust results from clinical trials using OV as a treatment congruously suggested its significance in future application directions and challenges in developing OVs as novel weapons for tactical decisions in cancer treatment.
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Affiliation(s)
- Danni Lin
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yinan Shen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China.
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang, China.
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3
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Wu YY, Sun TK, Chen MS, Munir M, Liu HJ. Oncolytic viruses-modulated immunogenic cell death, apoptosis and autophagy linking to virotherapy and cancer immune response. Front Cell Infect Microbiol 2023; 13:1142172. [PMID: 37009515 PMCID: PMC10050605 DOI: 10.3389/fcimb.2023.1142172] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
Recent reports have revealed that oncolytic viruses (OVs) play a significant role in cancer therapy. The infection of OVs such as oncolytic vaccinia virus (OVV), vesicular stomatitis virus (VSV), parvovirus, mammalian reovirus (MRV), human adenovirus, Newcastle disease virus (NDV), herpes simplex virus (HSV), avian reovirus (ARV), Orf virus (ORFV), inactivated Sendai virus (ISV), enterovirus, and coxsackievirus offer unique opportunities in immunotherapy through diverse and dynamic pathways. This mini-review focuses on the mechanisms of OVs-mediated virotherapy and their effects on immunogenic cell death (ICD), apoptosis, autophagy and regulation of the immune system.
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Affiliation(s)
- Yi-Ying Wu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Te-Kai Sun
- Tsairder Boitechnology Co. Ltd., Taichung, Taiwan
| | - Ming-Shan Chen
- Department of Anesthesiology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Muhammad Munir
- Department of Biomedical and Life Sciences, Lancaster University, Lancashire, United Kingdom
| | - Hung-Jen Liu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Ph.D Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- *Correspondence: Hung-Jen Liu,
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Maksoud S. The DNA Double-Strand Break Repair in Glioma: Molecular Players and Therapeutic Strategies. Mol Neurobiol 2022; 59:5326-5365. [PMID: 35696013 DOI: 10.1007/s12035-022-02915-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 06/05/2022] [Indexed: 12/12/2022]
Abstract
Gliomas are the most frequent type of tumor in the central nervous system, which exhibit properties that make their treatment difficult, such as cellular infiltration, heterogeneity, and the presence of stem-like cells responsible for tumor recurrence. The response of this type of tumor to chemoradiotherapy is poor, possibly due to a higher repair activity of the genetic material, among other causes. The DNA double-strand breaks are an important type of lesion to the genetic material, which have the potential to trigger processes of cell death or cause gene aberrations that could promote tumorigenesis. This review describes how the different cellular elements regulate the formation of DNA double-strand breaks and their repair in gliomas, discussing the therapeutic potential of the induction of this type of lesion and the suppression of its repair as a control mechanism of brain tumorigenesis.
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Affiliation(s)
- Semer Maksoud
- Experimental Therapeutics and Molecular Imaging Unit, Department of Neurology, Neuro-Oncology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
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5
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MRE11 as a molecular signature and therapeutic target for cancer treatment with radiotherapy. Cancer Lett 2021; 514:1-11. [PMID: 34022282 DOI: 10.1016/j.canlet.2021.05.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 01/02/2023]
Abstract
MRE11, the core of the MRE11/RAD50/NBS1 complex, is one of key DNA damage response proteins. Increasing evidence suggests that its expression in cancer cells is critical to developing radioresistance; as such, MRE11 is an emerging marker for targeted radiosensitization strategies. Elevated MRE11 in tumor tissues has been associated with poor survival in patients undergoing radiotherapy, although in some cancer types, the opposite has been noted. The recent discovery of ionizing radiation-induced truncation of MRE11, which decreases its efficacy, may explain some of these paradoxical findings. The progress of research on the biological modulation of MRE11 expression is also discussed, with the potential application of small molecule or large molecule inhibitors of MRE11 for enhancing radiosensitivity. Current research has further highlighted both nuclease and non-nuclease activities of MRE11 in cancer cells treated with ionizing radiation, and differentiation between these is essential to verify the targeting effects of radiosensitizing agents. These updates clarify our understanding of how MRE11 expression may be utilized in future stratification of cancer patients for radiotherapy, and how it may be leveraged in shaping novel radiosensitization strategies.
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Hemminki O, Dos Santos JM, Hemminki A. Oncolytic viruses for cancer immunotherapy. J Hematol Oncol 2020; 13:84. [PMID: 32600470 PMCID: PMC7325106 DOI: 10.1186/s13045-020-00922-1] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/17/2020] [Indexed: 12/24/2022] Open
Abstract
In this review, we discuss the use of oncolytic viruses in cancer immunotherapy treatments in general, with a particular focus on adenoviruses. These serve as a model to elucidate how versatile viruses are, and how they can be used to complement other cancer therapies to gain optimal patient benefits. Historical reports from over a hundred years suggest treatment efficacy and safety with adenovirus and other oncolytic viruses. This is confirmed in more contemporary patient series and multiple clinical trials. Yet, while the first viruses have already been granted approval from several regulatory authorities, room for improvement remains. As good safety and tolerability have been seen, the oncolytic virus field has now moved on to increase efficacy in a wide array of approaches. Adding different immunomodulatory transgenes to the viruses is one strategy gaining momentum. Immunostimulatory molecules can thus be produced at the tumor with reduced systemic side effects. On the other hand, preclinical work suggests additive or synergistic effects with conventional treatments such as radiotherapy and chemotherapy. In addition, the newly introduced checkpoint inhibitors and other immunomodulatory drugs could make perfect companions to oncolytic viruses. Especially tumors that seem not to be recognized by the immune system can be made immunogenic by oncolytic viruses. Logically, the combination with checkpoint inhibitors is being evaluated in ongoing trials. Another promising avenue is modulating the tumor microenvironment with oncolytic viruses to allow T cell therapies to work in solid tumors. Oncolytic viruses could be the next remarkable wave in cancer immunotherapy.
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Affiliation(s)
- Otto Hemminki
- Division of Urologic Oncology, Department of Surgical Oncology, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada. .,Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland. .,Department of Urology, Helsinki University Hospital, Helsinki, Finland.
| | - João Manuel Dos Santos
- Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,TILT Biotherapeutics Ltd, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland. .,TILT Biotherapeutics Ltd, Helsinki, Finland. .,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.
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Bian L, Meng Y, Zhang M, Li D. MRE11-RAD50-NBS1 complex alterations and DNA damage response: implications for cancer treatment. Mol Cancer 2019; 18:169. [PMID: 31767017 PMCID: PMC6878665 DOI: 10.1186/s12943-019-1100-5] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 11/08/2019] [Indexed: 01/26/2023] Open
Abstract
Genome instability is a hallmark of cancer cells and can be accelerated by defects in cellular responses to DNA damage. This feature of malignant cells opens new avenues for tumor targeted therapy. MRE11-RAD50-NBS1 complex plays a crucial role in sensing and repair of DNA damage. Through interacting with other important players of DNA damage response, MRE11-RAD50-NBS1 complex is engaged in various DNA damage repair pathways. Mutations in any member of this complex may lead to hypersensitivity to genotoxic agents and predisposition to malignancy. It is assumed that the defects in the complex may contribute to tumorigenesis and that treatments targeting the defect may be beneficial to cancer patients. Here, we summarized the recent research findings of the role of MRE11-RAD50-NBS1 complex in tumorigenesis, cancer treatment and discussed the potential approaches of targeting this complex to treat cancer.
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Affiliation(s)
- Lei Bian
- Department of Radiation Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yiling Meng
- Department of Radiation Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Meichao Zhang
- Department of Radiation Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dong Li
- Department of Radiation Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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Wang X, Qi X, Yang B, Chen S, Wang J. Autophagy Benefits the Replication of Egg Drop Syndrome Virus in Duck Embryo Fibroblasts. Front Microbiol 2018; 9:1091. [PMID: 29896171 PMCID: PMC5986908 DOI: 10.3389/fmicb.2018.01091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 05/07/2018] [Indexed: 12/19/2022] Open
Abstract
Egg drop syndrome virus (EDSV) is an economically important pathogen with a broad host range, and it causes disease that leads to markedly decreased egg production. Although EDSV is known to induce apoptosis in duck embryo fibroblasts (DEFs), the interaction between EDSV and its host needs to be further researched. Here, we provide the first evidence that EDSV infection triggers autophagy in DEFs through increases in autophagosome-like double-membrane vesicles, the conversion of LC3-I to LC3-II, and LC3 colocalization with viral hexon proteins. Conversely, P62/SQSTM1 degradation, LC3-II turnover, and colocalization of LAMP and LC3 confirmed that EDSV infection triggers complete autophagy. Furthermore, we demonstrated that inhibition of autophagy by chloroquine (CQ) and 3-methyladenine (3MA) or RNA interference targeting ATG-7 decreased the yield of EDSV progeny. In contrast, induction of autophagy by rapamycin increased the EDSV progeny yield. In addition, we preliminarily demonstrated that the class I phosphoinositide 3-kinase (PI3K)/Akt/mTOR pathway contributes to autophagic induction following EDSV infection. Altogether, these finding lead us to conclude that EDSV infection induces autophagy, which benefits its own replication in host cells. These findings provide novel insights into EDSV-host interactions.
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Affiliation(s)
- Xueping Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Bo Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Shuying Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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Teklemariam TA, Rivera OD, Nelson SW. Kinetic Analysis of the Exonuclease Activity of the Bacteriophage T4 Mre11–Rad50 Complex. Methods Enzymol 2018; 600:135-156. [DOI: 10.1016/bs.mie.2017.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tazawa H, Kuroda S, Hasei J, Kagawa S, Fujiwara T. Impact of Autophagy in Oncolytic Adenoviral Therapy for Cancer. Int J Mol Sci 2017; 18:ijms18071479. [PMID: 28698504 PMCID: PMC5535969 DOI: 10.3390/ijms18071479] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/07/2017] [Accepted: 07/07/2017] [Indexed: 02/07/2023] Open
Abstract
Oncolytic virotherapy has recently emerged as a promising strategy for inducing tumor-specific cell death. Adenoviruses are widely and frequently used in oncolytic virotherapy. The mechanism of oncolytic adenovirus-mediated tumor suppression involves virus-induced activation of the autophagic machinery in tumor cells. Autophagy is a cytoprotective process that produces energy via lysosomal degradation of intracellular components as a physiologic response to various stresses, including hypoxia, nutrient deprivation, and disruption of growth signaling. However, infection with oncolytic adenoviruses induces autophagy and subsequent death of tumor cells rather than enhancing their survival. In this review, we summarize the beneficial role of autophagy in oncolytic adenoviral therapy, including the roles of infection, replication, and cell lysis. Numerous factors are involved in the promotion and inhibition of oncolytic adenovirus-mediated autophagy. Furthermore, recent evidence has shown that oncolytic adenoviruses induce autophagy-related immunogenic cell death (ICD), which enhances the antitumor immune response by inducing the activation of danger signal molecules and thus represents a novel cancer immunotherapy. Understanding the precise role of oncolytic adenovirus-induced autophagy and ICD could enhance the therapeutic potential of oncolytic adenoviral therapy for treating various cancers.
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Affiliation(s)
- Hiroshi Tazawa
- Center for Innovative Clinical Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Shinji Kuroda
- Center for Innovative Clinical Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Joe Hasei
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Shunsuke Kagawa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
- Minimally Invasive Therapy Center, Okayama University Hospital, Okayama 700-8558, Japan.
| | - Toshiyoshi Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
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Zhang H, Wang F, Mao C, Zhang Z, Fu S, Lu J, Zhai Z, Li R, Li S, Rodriguez R, Wang Z. Effect of combined treatment of radiation and tissue-specific recombinant oncolytic adenovirus on bladder cancer cells. Int J Radiat Biol 2016; 93:174-183. [PMID: 27600610 DOI: 10.1080/09553002.2017.1231942] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE Gene therapy combined with radiation has shown promising potential for the treatment of tumors. This paper aimed to clarify the synergistic effect of radiotherapy combined with the bladder cancer tissue-specific oncolytic adenovirus (Ad-PSCAE-UPII-E1A) on bladder cancer cells and to study the underlying synergy mechanisms of the combined treatment. MATERIALS AND METHODS The Adenovirus carrying E1A under control of UPII promoter and prostate stem cell antigen enhancer (PSCAE) were successfully constructed. The viability of bladder cancer cells BIU-87 and EJ was determined by MTT assay. The apoptotic assay was demonstrated by flow cytometry and TEM. Virus titer was determined by TCID50 assay, and proteins Mre11, Chk2-Thr68, and E1A were analyzed by Western blot method. RESULTS Oncolytic adenovirus combined with radiotherapy improved antitumor efficacy compared with the single treatment at a time and was X-ray dosage-dependent. When the adenovirus infection was scheduled at 24 h after irradiation, cancer cells had the lowest viability. Adenovirus and irradiation induced cell death through the caspase-3 related apoptotic pathway, and bladder cancer cells were arrested at the G1 (BIU-87) or S phase (EJ). Autophagic vacuoles were observed in bladder cancer cells treated with radiation and adenovirus. After irradiation, more virus particles were observed in the BIU-87 and EJ cells. However, by a TCID50 assay, there was no difference in virus titter between irradiated bladder cancer cells and unirradiated cells. The proteins Mre11, Chk2-Thr68 which involved in the DNA break repair pathway were decreased while γ-H2AX-Ser139 increased; at the same time, the E1A gene and the hexon proteins of oncolytic adenovirus were increased after irradiation. CONCLUSIONS Our results proved synergistic antitumor effect of adenovirus Ad-PSCAE-UPII-E1A and radiation, which might be a potential therapeutic strategy for bladder cancer.
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Affiliation(s)
- Hongjuan Zhang
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China.,b The Second Hospital of Tianjin Medical University , Tian Jin , China
| | - Fang Wang
- c School of Basic Medical Sciences, Lanzhou University , Lanzhou , China
| | - Chunjie Mao
- d The General Hospital of Tianjin Medical University , Tian Jin , China
| | - Zuncheng Zhang
- b The Second Hospital of Tianjin Medical University , Tian Jin , China
| | - Shengjun Fu
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Jianzhong Lu
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Zhenxing Zhai
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Renju Li
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Shuwen Li
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Ron Rodriguez
- e Department of Urology , University of Texas Health Science Center , San Antonio , Texas , USA
| | - Zhiping Wang
- a Urologic Clinical Center of Gansu Province, Key Laboratory of Gansu Province, Institute of Urology, The Second Hospital of Lanzhou University , Lanzhou , China
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Liu S, Wang X, Lu J, Han L, Zhang Y, Liu Z, Ding S, Liu Z, Bi D, Niu Z. Ubenimex enhances the radiosensitivity of renal cell carcinoma cells by inducing autophagic cell death. Oncol Lett 2016; 12:3403-3410. [PMID: 27900012 DOI: 10.3892/ol.2016.5036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/03/2016] [Indexed: 12/19/2022] Open
Abstract
Renal cell carcinoma (RCC) is resistant to standard radiotherapy. Ubenimex, an aminopeptidase N inhibitor, is widely used as an adjunct therapy after surgery to enhance the function of immunocompetent cells and confer antitumor effects. Our previous study demonstrated that ubenimex induces autophagic cell death in RCC cells. Recently, the molecular mechanism of autophagy induction has been associated with radiosensitivity in RCC cells. In the present study, the ability of ubenimex to enhance RCC cell sensitivity to radiation via the induction of autophagic cell death was determined, and the mechanism of action of this effect was investigated. The 786-O and OS-RC-2 human RCC cell lines were treated with 0.5 mg/ml ubenimex and different doses of irradiation (IR). The cell viability was measured using a colony-formation assay and flow cytometry. Acridine orange (AO)-ethidium bromide (EB) staining was assessed by fluorescence microscopy as an indicator of autophagic cell death. Protein expression was assessed by western blotting. Autophagosomes were evaluated using transmission electron microscopy. RCC cells were used to evaluate the sensitivity to radiation using clonogenic survival and lactate dehydrogenase assays. Furthermore, these parameters were also tested at physiological oxygen levels. The AO-EB staining and flow cytometry of the OS-RC-2 cells indicated that the combined treatment significantly enhanced autophagic cell death compared with ubenimex or IR alone. Therefore, treatment with ubenimex did not significantly alter cell cycle progression but increased cell death when combined with radiation. An Akt agonist could significantly weaken this effect, indicating that ubenimex may act as an Akt inhibitor. Furthermore, the western blot analysis indicated that the combined treatment inhibited the Akt signaling pathway compared with ubenimex treatment or IR alone. Ubenimex may enhance RCC cell sensitivity to radiation by inducing cell autophagy. This induction changes the role of autophagy from protective to lethal in vitro, and this switch is associated with the inhibition of the Akt signaling pathway.
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Affiliation(s)
- Shuai Liu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xiaoqing Wang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Jiaju Lu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Liping Han
- Department of Neurology, Shandong Police Hospital, Jinan, Shandong 250021, P.R. China
| | - Yongfei Zhang
- Department of Dermatology, Shandong University, Jinan, Shandong 250000, P.R. China
| | - Zheng Liu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Sentai Ding
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Zhao Liu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Dongbin Bi
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Zhihong Niu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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Kuryk L, Haavisto E, Garofalo M, Capasso C, Hirvinen M, Pesonen S, Ranki T, Vassilev L, Cerullo V. Synergistic anti-tumor efficacy of immunogenic adenovirus ONCOS-102 (Ad5/3-D24-GM-CSF) and standard of care chemotherapy in preclinical mesothelioma model. Int J Cancer 2016; 139:1883-93. [PMID: 27287512 DOI: 10.1002/ijc.30228] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/01/2016] [Accepted: 05/30/2016] [Indexed: 11/08/2022]
Abstract
Malignant mesothelioma (MM) is a rare cancer type caused mainly by asbestos exposure. The median overall survival time of a mesothelioma cancer patient is less than 1-year from diagnosis. Currently there are no curative treatment modalities for malignant mesothelioma, however treatments such as surgery, chemotherapy and radiotherapy can help to improve patient prognosis and increase life expectancy. Pemetrexed-Cisplatin is the only standard of care (SoC) chemotherapy for malignant mesothelioma, but the median PFS/OS (progression-free survival/overall survival) from the initiation of treatment is only up to 12 months. Therefore, new treatment strategies against malignant mesothelioma are in high demand. ONCOS-102 is a dual targeting, chimeric oncolytic adenovirus, coding for human GM-CSF. The safety and immune activating properties of ONCOS-102 have already been assessed in phase 1 study (NCT01598129). In this preclinical study, we evaluated the antineoplastic activity of combination treatment with SoC chemotherapy (Pemetrexed, Cisplatin, Carboplatin) and ONCOS-102 in xenograft BALB/c model of human malignant mesothelioma. We demonstrated that ONCOS-102 is able to induce immunogenic cell death of human mesothelioma cell lines in vitro and showed anti-tumor activity in the treatment of refractory H226 malignant pleural mesothelioma (MPM) xenograft model. While chemotherapy alone showed no anti-tumor activity in the mesothelioma mouse model, ONCOS-102 was able to slow down tumor growth. Interestingly, a synergistic anti-tumor effect was seen when ONCOS-102 was combined with chemotherapy regimens. These findings give a rationale for the clinical testing of ONCOS-102 in combination with first-line chemotherapy in patients suffering from malignant mesothelioma.
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Affiliation(s)
- Lukasz Kuryk
- Targovax Oy, Saukonpaadenranta 2, Helsinki, Finland.,Laboratory of ImmunoViroTherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research (CDR), University of Helsinki, Viikinkaari 5, Helsinki, 00790, Finland.,Department of Virology, National Institute of Public Health-National Institute of Hygiene, Chocimska 24 Str, Warsaw, 00-791, Poland
| | | | - Mariangela Garofalo
- Laboratory of ImmunoViroTherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research (CDR), University of Helsinki, Viikinkaari 5, Helsinki, 00790, Finland
| | - Cristian Capasso
- Laboratory of ImmunoViroTherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research (CDR), University of Helsinki, Viikinkaari 5, Helsinki, 00790, Finland
| | - Mari Hirvinen
- Laboratory of ImmunoViroTherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research (CDR), University of Helsinki, Viikinkaari 5, Helsinki, 00790, Finland
| | - Sari Pesonen
- Targovax Oy, Saukonpaadenranta 2, Helsinki, Finland
| | - Tuuli Ranki
- Targovax Oy, Saukonpaadenranta 2, Helsinki, Finland
| | - Lotta Vassilev
- Oncos Therapeutics Oy, Saukonpaadenranta 2, Helsinki, Finland
| | - Vincenzo Cerullo
- Laboratory of ImmunoViroTherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research (CDR), University of Helsinki, Viikinkaari 5, Helsinki, 00790, Finland
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Siurala M, Vähä-Koskela M, Havunen R, Tähtinen S, Bramante S, Parviainen S, Mathis JM, Kanerva A, Hemminki A. Syngeneic syrian hamster tumors feature tumor-infiltrating lymphocytes allowing adoptive cell therapy enhanced by oncolytic adenovirus in a replication permissive setting. Oncoimmunology 2016; 5:e1136046. [PMID: 27467954 DOI: 10.1080/2162402x.2015.1136046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/18/2015] [Accepted: 12/18/2015] [Indexed: 12/24/2022] Open
Abstract
Adoptive transfer of tumor-infiltrating lymphocytes (TIL) has shown promising yet sometimes suboptimal results in clinical trials for advanced cancer, underscoring the need for approaches improving efficacy and safety. Six implantable syngeneic tumor cell lines of the Syrian hamster were used to initiate TIL cultures. TIL generated from tumor fragments cultured in human interleukin-2 (IL-2) for 10 d were adoptively transferred into tumor-bearing hamsters with concomitant intratumoral injections of oncolytic adenovirus (Ad5-D24) for the assessment of antitumor efficacy. Pancreatic cancer (HapT1) and melanoma (RPMI 1846) TIL exhibited potent and tumor-specific cytotoxicity in effector-to-target (E/T) assays. MHC Class I blocking abrogated the cell killing of RPMI 1846 TIL, indicating cytotoxic CD8(+) T-cell activity. When TIL were combined with Ad5-D24 in vitro, HapT1 tumor cell killing was significantly enhanced over single agents. In vivo, the intratumoral administration of HapT1 TIL and Ad5-D24 resulted in improved tumor growth control compared with either treatment alone. Additionally, splenocytes derived from animals treated with the combination of Ad5-D24 and TIL killed autologous tumor cells more efficiently than monotherapy-derived splenocytes, suggesting that systemic antitumor immunity was induced. For the first time, TIL of the Syrian hamster have been cultured, characterized and used therapeutically together with oncolytic adenovirus for enhancing the efficacy of TIL therapy. Our results support human translation of oncolytic adenovirus as an enabling technology for adoptive T-cell therapy of solid tumors.
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Affiliation(s)
- Mikko Siurala
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland
| | - Markus Vähä-Koskela
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Riikka Havunen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Siri Tähtinen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Simona Bramante
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Suvi Parviainen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland
| | - J Michael Mathis
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University , Baton Rouge, LA, USA
| | - Anna Kanerva
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Department of Obstetrics and Gynecology, Helsinki University Central Hospital (HUCH), Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland; Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
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Zhang D, Tang B, Xie X, Xiao YF, Yang SM, Zhang JW. The interplay between DNA repair and autophagy in cancer therapy. Cancer Biol Ther 2015; 16:1005-13. [PMID: 25985143 DOI: 10.1080/15384047.2015.1046022] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
DNA is the prime target of anticancer treatments. DNA damage triggers a series of signaling cascades promoting cellular survival, including DNA repair, cell cycle arrest, and autophagy. The elevated basal and/or stressful levels of both DNA repair and autophagy observed in tumor cells, in contrast to normal cells, have been identified as the most important drug-responsive programs that impact the outcome of anticancer therapy. The exact relationship between DNA repair and autophagy in cancer cells remains unclear. On one hand, autophagy has been shown to regulate some of the DNA repair proteins after DNA damage by maintaining the balance between their synthesis, stabilization, and degradation. One the other hand, some evidence has demonstrated that some DNA repair molecular have a crucial role in the initiation of autophagy. In this review, we mainly discuss the interplay between DNA repair and autophagy in anticancer therapy and expect to enlighten some effective strategies for cancer treatment.
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Key Words
- AMPK, adenosine monophosphate-activated protein kinase
- ATG5, autophagy-related gene 5
- ATM, ataxia-telangiectasia mutated
- ATR, ATM and Rad3-related
- BER, base excision repair
- Chk1, check-point kinase 1
- Chk2, check-point kinase 2
- DDR, DNA damage response
- DNA damage
- DNA damage response
- DNA repair
- DNA-PKcs, DNA-dependent protein kinase catalytic subunit
- DSBs, double-strand breaks
- HDAC, histone deacetylases
- HR, homologous recombination
- IR, ionizing radiation
- MGMT, O6 methylguanine –DNA methyltransferase
- MMR, mismatch repair
- MRN, Mre11-Rad50-Nbs1
- NER, nucleotide excision recombination
- NHEJ, non-homologous end joining
- OGG1, 8-oxoguannine DNA glycosidase
- PARP-1, poly (ADP-ribose) polymerase 1
- PI3K, phosphoinositide 3-kinase
- PML, promyelocytic leukemia
- SSBs, single-strand break
- TMZ, temozolomide
- TSC2, tuberous sclerosis complex 2
- anticancer therapy
- apoptosis
- autophagy
- cell cycle arrest
- mTOR, mammalian target of rapamycin
- γ-H2AX, phosphorylated histone
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Affiliation(s)
- Dan Zhang
- a Department of Gastroenterology; Xinqiao Hospital; Third Military Medical University ; Chongqing , China
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16
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Siurala M, Bramante S, Vassilev L, Hirvinen M, Parviainen S, Tähtinen S, Guse K, Cerullo V, Kanerva A, Kipar A, Vähä-Koskela M, Hemminki A. Oncolytic adenovirus and doxorubicin-based chemotherapy results in synergistic antitumor activity against soft-tissue sarcoma. Int J Cancer 2014; 136:945-54. [DOI: 10.1002/ijc.29048] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 05/15/2014] [Accepted: 05/27/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Mikko Siurala
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | - Simona Bramante
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | | | - Mari Hirvinen
- Laboratory of Immunovirotherapy; Division of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, University of Helsinki; Helsinki Finland
| | - Suvi Parviainen
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | - Siri Tähtinen
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | - Kilian Guse
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | - Vincenzo Cerullo
- Laboratory of Immunovirotherapy; Division of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, University of Helsinki; Helsinki Finland
| | - Anna Kanerva
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
- Department of Obstetrics and Gynecology; Helsinki University Central Hospital; Helsinki Finland
| | - Anja Kipar
- Finnish Centre for Laboratory Animal Pathology; Faculty of Veterinary Medicine, University of Helsinki; Helsinki Finland
- Department of Infection Biology; Institute of Global Health, School of Veterinary Science, University of Liverpool; Liverpool United Kingdom
| | - Markus Vähä-Koskela
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Department of Pathology and Transplantation Laboratory; Haartman Institute, University of Helsinki; Helsinki Finland
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Hemminki A. Oncolytic immunotherapy: where are we clinically? SCIENTIFICA 2014; 2014:862925. [PMID: 24551478 PMCID: PMC3914551 DOI: 10.1155/2014/862925] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 12/16/2013] [Indexed: 05/08/2023]
Abstract
Following a century of preclinical and clinical work, oncolytic viruses are now proving themselves in randomized phase 3 trials. Interestingly, human data indicates that these agents have potent immunostimulatory activity, raising the possibility that the key consequence of oncolysis might be induction of antitumor immunity, especially in the context of viruses harboring immunostimulatory transgenes. While safety and efficacy of many types of oncolytic viruses, including adenovirus, herpes, reo, and vaccinia seem promising, few mechanisms of action studies have been performed with human substrates. Thus, the relative contribution of "pure" oncolysis, the immune response resulting from oncolysis, and the added benefit of adding a transgene remain poorly understood. Here, the available clinical data on oncolytic viruses is reviewed, with emphasis on immunological aspects.
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Affiliation(s)
- Akseli Hemminki
- Cancer Gene Therapy Group, Haartman Institute, University of Helsinki, Haartmaninkatu 3, 00290 Helsinki, Finland
- TILT Biotherapeutics Ltd., P. Hesperiankatu 37A22, 00260 Helsinki, Finland
- *Akseli Hemminki:
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Young BA, Spencer JF, Ying B, Toth K, Wold WSM. The effects of radiation on antitumor efficacy of an oncolytic adenovirus vector in the Syrian hamster model. Cancer Gene Ther 2013; 20:531-7. [PMID: 23928730 PMCID: PMC3778061 DOI: 10.1038/cgt.2013.50] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 07/03/2013] [Indexed: 12/19/2022]
Abstract
We report that radiation enhances the antitumor efficacy of the oncolytic adenovirus vector VRX-007 in Syrian hamster tumors. We used tumor-specific irradiation of subcutaneous tumors and compared treatment options of radiation alone or combined with VRX-007 and cyclophosphamide (CP). Radiation therapy further augmented the VRX-007-mediated inhibition of tumor growth, in both CP-treated and non-CP-treated hamsters, even though radiation did not lead to increased viral replication in tumors when compared to those treated with VRX-007 alone. Moreover, tumor growth inhibition was similar in tumors irradiated either one week before or after injection with VRX-007, which suggests that radiation exerts its antitumor effect independently from vector therapy. Thus, our results demonstrate that these two therapies do not have to be provided simultaneously to enhance their combined effectiveness against subcutaneous hamster tumors.
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Affiliation(s)
- B A Young
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St Louis, MO, USA
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Meng S, Xu J, Wu Y, Ding C. Targeting autophagy to enhance oncolytic virus-based cancer therapy. Expert Opin Biol Ther 2013; 13:863-73. [PMID: 23488666 DOI: 10.1517/14712598.2013.774365] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Autophagy is a conserved catabolic process crucial in maintaining cellular homeostasis. On infection, oncolytic viruses (OVs) perturb the cellular autophagy machinery in infected tumor cells both in vitro and in vivo. Currently, pharmacological modulation of autophagy in OV-infected tumor cells has been shown to augment OV-mediated antitumor effects in preclinical studies. Combination of OVs with autophagy modulators can, therefore, have many potential applications in the future research on targeting autophagy and novel anticancer therapies. AREAS COVERED This review provides a detailed description of known interactions between OVs and autophagy and summarizes the roles of autophagy in OV replication and cell lysis. The recent literature on targeting autophagy with either the autophagy inducers, such as rapamycin, or autophagy inhibitors, such as chloroquine, to increase OV-induced cytotoxicity is reviewed to help researchers in further investigations. The major challenge for investigators is to understand the molecular mechanism underlying the interplay between OV and the autophagy machinery and its effect on oncolysis. EXPERT OPINION Targeting the cellular autophagy machinery could be explored as a new therapeutic strategy to enhance OV-mediated antitumor effects in the future.
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Affiliation(s)
- Songshu Meng
- Dalian Medical University Cancer Center, Institute of Cancer Stem Cell, 9 Lvshun Road South, Dalian 116044, Chin.
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20
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Cerullo V, Koski A, Vähä-Koskela M, Hemminki A. Chapter eight--Oncolytic adenoviruses for cancer immunotherapy: data from mice, hamsters, and humans. Adv Cancer Res 2013; 115:265-318. [PMID: 23021247 DOI: 10.1016/b978-0-12-398342-8.00008-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Adenovirus is one of the most commonly used vectors for gene therapy and two products have already been approved for treatment of cancer in China (Gendicine(R) and Oncorine(R)). An intriguing aspect of oncolytic adenoviruses is that by their very nature they potently stimulate multiple arms of the immune system. Thus, combined tumor killing via oncolysis and inherent immunostimulatory properties in fact make these viruses in situ tumor vaccines. When further engineered to express cytokines, chemokines, tumor-associated antigens, or other immunomodulatory elements, they have been shown in various preclinical models to induce antigen-specific effector and memory responses, resulting both in full therapeutic cures and even induction of life-long tumor immunity. Here, we review the state of the art of oncolytic adenovirus, in the context of their capability to stimulate innate and adaptive arms of the immune system and finally how we can modify these viruses to direct the immune response toward cancer.
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Affiliation(s)
- Vincenzo Cerullo
- Laboratory of Immunovirotherapy, Division of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.
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21
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Autophagy and Prostate Cancer Therapeutics. Prostate Cancer 2013. [DOI: 10.1007/978-1-4614-6828-8_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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22
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Anbalagan S, Pires IM, Blick C, Hill MA, Ferguson DJP, Chan DA, Hammond EM. Radiosensitization of renal cell carcinoma in vitro through the induction of autophagy. Radiother Oncol 2012; 103:388-93. [PMID: 22551566 DOI: 10.1016/j.radonc.2012.04.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 04/02/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND AND PURPOSE For patients diagnosed with advanced renal cell carcinoma (RCC), there are few therapeutic options. Radiation therapy is predominantly used to treat metastasis and has not proven effective in the adjuvant setting for renal cancer. Furthermore, RCC is resistant to standard cytotoxic chemotherapies. Targeted anti-angiogenics are the standard of care for RCC but are not curative. Newer agents, such as mTOR inhibitors and others that induce autophagy, have shown great promise for treating RCC. Here, we investigate the potential use of the small molecule STF-62247 to modulate radiation. MATERIALS AND METHODS Using RCC cell lines, we evaluate sensitivity to radiation in addition to agents that induce autophagic cell death by clonogenic survival assays. Furthermore, these were also tested under physiological oxygen levels. RESULTS STF-62247 specifically induces autophagic cell death in cells that have lost VHL, an essential mutation in the development of RCC. Treatment with STF-62247 did not alter cell cycle progression but when combined with radiation increased cell killing under oxic and hypoxic/physiological conditions. CONCLUSIONS This study highlights the possibility of combining targeted therapeutics such as STF-62247 or temsirolimus with radiation to reduce the reliance on partial or full nephrectomy and improve patient prognosis.
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Affiliation(s)
- Selvakumar Anbalagan
- The Cancer Research UK/MRC Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, UK
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23
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Rajecki M, Sarparanta M, Hakkarainen T, Tenhunen M, Diaconu I, Kuhmonen V, Kairemo K, Kanerva A, Airaksinen AJ, Hemminki A. SPECT/CT imaging of hNIS-expression after intravenous delivery of an oncolytic adenovirus and 131I. PLoS One 2012; 7:e32871. [PMID: 22412937 PMCID: PMC3296755 DOI: 10.1371/journal.pone.0032871] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 02/01/2012] [Indexed: 12/17/2022] Open
Abstract
Oncolytic adenoviruses can be engineered for better tumor selectivity, gene delivery and be armed for imaging and concentrating radionuclides into tumors for synergistic oncolysis. We constructed Ad5/3-hTERT-hNIS where replication is controlled by hTERT-promoter. Ad5/3-hTERT-hNIS expresses hNIS for imaging of transgene expression and for treatment of infected tumors by radioiodine. Ad5/3-hTERT-hNIS efficiently killed prostate cancer cells and induced iodine uptake in vitro and in vivo after intratumoral virus administration. Survival of mice treated with intravenous Ad5/3-hTERT-hNIS significantly prolonged survival over mock or radioiodine only but the combination of virus with radioiodine was not more effective than virus alone. Temporal and spatial changes in hNIS-expression during therapy were detected with SPECT, demonstrating feasibility of evaluation of the combination therapy with hNIS-expressing adenoviruses and radioiodide.
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Affiliation(s)
- Maria Rajecki
- Cancer Gene Therapy Group, Molecular Cancer Biology Program, Haartman Institute, Transplantation Laboratory and Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
| | - Mirkka Sarparanta
- Laboratory of Radiochemistry, University of Helsinki, Helsinki, Finland
| | - Tanja Hakkarainen
- Cancer Gene Therapy Group, Molecular Cancer Biology Program, Haartman Institute, Transplantation Laboratory and Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
| | - Mikko Tenhunen
- Department of Oncology, Helsinki University Central Hospital, Helsinki, Finland
| | - Iulia Diaconu
- Cancer Gene Therapy Group, Molecular Cancer Biology Program, Haartman Institute, Transplantation Laboratory and Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
| | - Venla Kuhmonen
- Laboratory of Radiochemistry, University of Helsinki, Helsinki, Finland
| | - Kalevi Kairemo
- Department of Oncology, Helsinki University Central Hospital, Helsinki, Finland
- International Comprehensive Cancer Center Docrates, Helsinki, Finland
| | - Anna Kanerva
- Cancer Gene Therapy Group, Molecular Cancer Biology Program, Haartman Institute, Transplantation Laboratory and Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
- Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland
| | - Anu J. Airaksinen
- Laboratory of Radiochemistry, University of Helsinki, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Molecular Cancer Biology Program, Haartman Institute, Transplantation Laboratory and Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB, Helsinki University Central Hospital, Helsinki, Finland
- * E-mail:
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Radiation-induced upregulation of gene expression from adenoviral vectors mediated by DNA damage repair and regulation. Int J Radiat Oncol Biol Phys 2011; 83:376-84. [PMID: 22019240 DOI: 10.1016/j.ijrobp.2011.06.1973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 06/07/2011] [Accepted: 06/15/2011] [Indexed: 12/26/2022]
Abstract
PURPOSE In the present study, we evaluated the combination of replication-deficient adenoviruses and radiotherapy in vitro. The purpose of the present study was to analyze the mechanism of radiation-mediated upregulation of adenoviral transgene expression. METHODS AND MATERIALS Adenoviral transgene expression (luciferase or green fluorescent protein) was studied with and without radiation in three cell lines: breast cancer M4A4-LM3, prostate cancer PC-3MM2, and lung cancer LNM35/enhanced green fluorescent protein. The effect of the radiation dose, modification of the viral capsid, and five different transgene promoters were studied. The cellular responses were studied using mass spectrometry and immunofluorescence analysis. Double strand break repair was modulated by inhibitors of heat shock protein 90, topoisomerase-I, and DNA protein kinase, and transgene expression was measured. RESULTS We found that a wide range of radiation doses increased adenoviral transgene expression regardless of the cell line, transgene, promoter, or viral capsid modification. Treatment with adenovirus, radiation, and double strand break repair inhibitors resulted in persistence of double strand breaks and subsequent increases in adenovirus transgene expression. CONCLUSIONS Radiation-induced enhancement of adenoviral transgene expression is linked to DNA damage recognition and repair. Radiation induces a global cellular response that results in increased production of RNA and proteins, including adenoviral transgene products. This study provides a mechanistic rationale for combining radiation with adenoviral gene delivery.
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Pesonen S, Kangasniemi L, Hemminki A. Oncolytic Adenoviruses for the Treatment of Human Cancer: Focus on Translational and Clinical Data. Mol Pharm 2010; 8:12-28. [PMID: 21126047 DOI: 10.1021/mp100219n] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sari Pesonen
- Cancer Gene Therapy Group, Molecular Cancer Biology Program & Transplantation Laboratory & Haartman Institute & Finnish Institute for Molecular Medicine, P.O. Box 63, 00014 University of Helsinki, Helsinki, Finland, HUSLAB, Helsinki University Central Hospital, Finland, and Oncos Therapeutics Ltd., Tukholmankatu 8, 00290 Helsinki, Finland
| | - Lotta Kangasniemi
- Cancer Gene Therapy Group, Molecular Cancer Biology Program & Transplantation Laboratory & Haartman Institute & Finnish Institute for Molecular Medicine, P.O. Box 63, 00014 University of Helsinki, Helsinki, Finland, HUSLAB, Helsinki University Central Hospital, Finland, and Oncos Therapeutics Ltd., Tukholmankatu 8, 00290 Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Molecular Cancer Biology Program & Transplantation Laboratory & Haartman Institute & Finnish Institute for Molecular Medicine, P.O. Box 63, 00014 University of Helsinki, Helsinki, Finland, HUSLAB, Helsinki University Central Hospital, Finland, and Oncos Therapeutics Ltd., Tukholmankatu 8, 00290 Helsinki, Finland
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Liikanen I, Dias JD, Nokisalmi P, Sloniecka M, Kangasniemi L, Rajecki M, Dobner T, Tenhunen M, Kanerva A, Pesonen S, Ahtiainen L, Hemminki A. Adenoviral E4orf3 and E4orf6 proteins, but not E1B55K, increase killing of cancer cells by radiotherapy in vivo. Int J Radiat Oncol Biol Phys 2010; 78:1201-9. [PMID: 20832189 DOI: 10.1016/j.ijrobp.2010.05.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Revised: 05/13/2010] [Accepted: 05/25/2010] [Indexed: 12/20/2022]
Abstract
PURPOSE Radiotherapy is widely used for treatment of many tumor types, but it can damage normal tissues. It has been proposed that cancer cells can be selectively sensitized to radiation by adenovirus replication or by using radiosensitizing transgenes. Adenoviral proteins E1B55K, E4orf3, and E4orf6 play a role in radiosensitization, by targeting the Mre11, Rad50, and NBS1 complex (MRN) and inhibiting DNA double-strand break (DSB) repair. We hypothesize that combined with irradiation, these adenoviral proteins increase cell killing through the impairment of DSB repair. METHODS AND MATERIALS We assessed the radiosensitizing/additive potential of replication-deficient adenoviruses expressing E1B55K, E4orf3, and E4orf6 proteins. Combination treatments with low-dose external photon beam radiotherapy were studied in prostate cancer (PC-3MM2 and DU-145), breast cancer (M4A4-LM3), and head and neck cancer (UT-SCC8) cell lines. We further demonstrated radiosensitizing or additive effects in mice with PC-3MM2 tumors. RESULTS We show enhanced cell killing with adenovirus and radiation combination treatment. Co-infection with several of the viruses did not further increase cell killing, suggesting that both E4orf6 and E4orf3 are potent in MRN inhibition. Our results show that adenoviral proteins E4orf3 and E4orf6, but not E1B55K, are effective also in vivo. Enhanced cell killing was due to inhibition of DSB repair resulting in persistent double-strand DNA damage, indicated by elevated phospho-H2AX levels at 24 h after irradiation. CONCLUSIONS This knowledge can be applied for improving the treatment of malignant tumors, such as prostate cancer, for development of more effective combination therapies and minimizing radiation doses and reducing side effects.
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Affiliation(s)
- Ilkka Liikanen
- Haartman Institute & Finnish Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
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Lin LT, Dawson PWH, Richardson CD. Viral interactions with macroautophagy: a double-edged sword. Virology 2010; 402:1-10. [PMID: 20413139 PMCID: PMC7111941 DOI: 10.1016/j.virol.2010.03.026] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 02/18/2010] [Accepted: 03/16/2010] [Indexed: 02/07/2023]
Abstract
Autophagy is a conserved eukaryotic mechanism that mediates the removal of long-lived cytoplasmic macromolecules and damaged organelles via a lysosomal degradative pathway. Recently, a multitude of studies have reported that viral infections may have complex interconnections with the autophagic process. These observations strongly imply that autophagy has virus-specific roles relating to viral replication, host innate and adaptive immune responses, virus-induced cell death programs, and viral pathogenesis. Autophagy can supply internal membrane structures necessary for viral replication or may prolong cell survival during viral infections and postpone cell death. It can influence the survival of both infected and bystander cells. This process has also been linked to the recognition of viral signature molecules during innate immunity and has been suggested to help rid the cell of infection. This review discusses interactions between different viruses and the autophagy pathway, and surveys the current state of knowledge and emerging themes within this field.
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Affiliation(s)
- Liang-Tzung Lin
- Department of Microbiology and Immunology, Dalhousie University, 5850 College St., 7th Floor Sir Charles Tupper Bldg., Halifax, Nova Scotia, Canada B3H 1X5
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Multimodal approach using oncolytic adenovirus, cetuximab, chemotherapy and radiotherapy in HNSCC low passage tumour cell cultures. Eur J Cancer 2010; 46:625-35. [DOI: 10.1016/j.ejca.2009.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Accepted: 11/12/2009] [Indexed: 12/25/2022]
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