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Yang Z, Chen L, Guo T, Huang L, Yang Y, Ye R, Zhang Y, Lin X, Fan Y, Gong C, Yang N, Guan W, Liang D, Ouyang W, Yang W, Zhao X, Zhang J. Cationic liposomes overcome neutralizing antibodies and enhance reovirus efficacy in ovarian cancer. Virology 2024; 598:110196. [PMID: 39098183 DOI: 10.1016/j.virol.2024.110196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 07/16/2024] [Accepted: 07/30/2024] [Indexed: 08/06/2024]
Abstract
Reovirus (Reo) has shown promising potential in specifically killing tumor cells, and offering new possibilities for ovarian cancer (OC) treatment. However, neutralizing antibodies in the ascites from OC patients greatly limit the further application of Reo. In this study, we employed cationic liposomes (Lipo) to deliver Reo, significantly enhancing its ability to enter OC cells and its effectiveness in killing these cells under ascitic conditions. Pre-treatment with the MβCD inhibitor notably decreased Reo-mediated tumor cell death, indicating that Lipo primarily enables Reo's cellular uptake through caveolin-mediated endocytosis. Our results demonstrate that Lipo effectively facilitates the entry of Reo into the cytoplasm and triggers cell apoptosis. The above findings provide a new strategy to overcome the obstacle of neutralizing antibodies in the clinical application of Reo.
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Affiliation(s)
- Zhiru Yang
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Liang Chen
- Department of Thoracic and Breast Surgery, Anshun People's Hospital, Anshun, Guizhou, China
| | - Ting Guo
- Department of Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Lei Huang
- Department of Thoracic and Breast Surgery, Anshun People's Hospital, Anshun, Guizhou, China
| | - Yuxin Yang
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Rui Ye
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yingchun Zhang
- Department of Biology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Tumor Immunotherapy Technology Engineering Research Center, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiaojin Lin
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Biology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuting Fan
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Gastroenterology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Chulan Gong
- Department of Breast Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Na Yang
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Weili Guan
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Biology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Dan Liang
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Weiwei Ouyang
- Department of Thoracic Oncology, The Affiliated Hospital/The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Wei Yang
- Department of Oncology, Guizhou Medical University, Guiyang, China
| | - Xing Zhao
- Tissue Engineering and Stem Cell Experiment Center, Guizhou Medical University (GMU), Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Tumor Immunotherapy Technology Engineering Research Center, Guizhou Medical University, Guiyang, Guizhou, China.
| | - Jing Zhang
- Department of Biology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.
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The differential expression of toll like receptors and RIG-1 correlates to the severity of infectious diseases. Ann Diagn Pathol 2023; 63:152102. [PMID: 36634551 DOI: 10.1016/j.anndiagpath.2022.152102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023]
Abstract
The toll like receptors (TLRs) and RIG-1 are proteins involved in the initial reaction of the innate immune system to infectious diseases and, thus, can provide much information to the surgical pathologist in terms of the molecular dynamics of the infection. The TLRs (TLR1, 2, 3, 4, 7, 8) and RIG-1 distribution as determined by immunohistochemistry was examined in the following diseases: human papillomavirus (n = 30 including 15 squamous intraepithelial lesions (SIL), 5 cancers, and 10 controls); molluscum contagiosum (n = 8 including 4 controls), SARS-CoV2 (n = 52 including 20 mild, 5 fatal, and 27 controls) and reovirus infection as oncolytic therapy. Mild, regressing infection (molluscum contagiosum, mild SARS-CoV2 and low grade SIL) each showed the same pattern: marked up regulation of at least three of the TLRs/RIG-1 with decreased expression of none compared to the controls. Severe infection (fatal SARS-CoV2, and cervical cancer) each showed marked decrease expression in at least three of the TLRs/RIG-1. We recently documented an equivalent marked decrease expression of the TLRs/RIG-1 in the placenta in fatal in utero infections. The reoviral infected tissues showed an overall pattern of marked increase expression of TLRs/RIG-1, consistent with a strong anti-viral response. Thus, the in situ testing of infectious diseases by a panel of these early infectious disease recognition proteins may allow the surgical pathologist to predict the outcome of the disease which, in turn, may assist in the understanding of the role of the TLRs/RIG-1 in determining the fate of a given infectious process.
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Huang Z, Guo H, Lin L, Li S, Yang Y, Han Y, Huang W, Yang J. Application of oncolytic virus in tumor therapy. J Med Virol 2023; 95:e28729. [PMID: 37185868 DOI: 10.1002/jmv.28729] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 05/17/2023]
Abstract
Oncolytic viruses (OVs) can selectively kill tumor cells without affecting normal cells, as well as activate the innate and adaptive immune systems in patients. Thus, they have been considered as a promising measure for safe and effective cancer treatment. Recently, a few genetically engineered OVs have been developed to further improve the effect of tumor elimination by expressing specific immune regulatory factors and thus enhance the body's antitumor immunity. In addition, the combined therapies of OVs and other immunotherapies have been applied in clinical. Although there are many studies on this hot topic, a comprehensive review is missing on illustrating the mechanisms of tumor clearance by OVs and how to modify engineered OVs to further enhance their antitumor effects. In this study, we provided a review on the mechanisms of immune regulatory factors in OVs. In addition, we reviewed the combined therapies of OVs with other therapies including radiotherapy and CAR-T or TCR-T cell therapy. The review is useful in further generalize the usage of OV in cancer treatment.
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Affiliation(s)
- Zhijian Huang
- Department of Breast Surgical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Hongen Guo
- Department of Dermatology, Dermatology Hospital of Fuzhou, Fujian, Fuzhou, China
| | - Lin Lin
- Department of Medical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Shixiong Li
- Department of Breast Surgical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Yong Yang
- Department of Liver Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Yuanyuan Han
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Weiwei Huang
- Department of Medical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Jialiang Yang
- Geneis Beijing Co., Ltd, Beijing, China
- Academician Workstation, Changsha Medical University, Changsha, China
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U5 snRNP Core Proteins Are Key Components of the Defense Response against Viral Infection through Their Roles in Programmed Cell Death and Interferon Induction. Viruses 2022; 14:v14122710. [PMID: 36560714 PMCID: PMC9785106 DOI: 10.3390/v14122710] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/25/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022] Open
Abstract
The spliceosome is a massive ribonucleoprotein structure composed of five small nuclear ribonucleoprotein (snRNP) complexes that catalyze the removal of introns from pre-mature RNA during constitutive and alternative splicing. EFTUD2, PRPF8, and SNRNP200 are core components of the U5 snRNP, which is crucial for spliceosome function as it coordinates and performs the last steps of the splicing reaction. Several studies have demonstrated U5 snRNP proteins as targeted during viral infection, with a limited understanding of their involvement in virus-host interactions. In the present study, we deciphered the respective impact of EFTUD2, PRPF8, and SNRNP200 on viral replication using mammalian reovirus as a model. Using a combination of RNA silencing, real-time cell analysis, cell death and viral replication assays, we discovered distinct and partially overlapping novel roles for EFTUD2, PRPF8, and SNRNP200 in cell survival, apoptosis, necroptosis, and the induction of the interferon response pathway. For instance, we demonstrated that EFTUD2 and SNRNP200 are required for both apoptosis and necroptosis, whereas EFTUD2 and PRPF8 are required for optimal interferon response against viral infection. Moreover, we demonstrated that EFTUD2 restricts viral replication, both in a single cycle and multiple cycles of viral replication. Altogether, these results establish U5 snRNP core components as key elements of the cellular antiviral response.
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Tian Y, Xie D, Yang L. Engineering strategies to enhance oncolytic viruses in cancer immunotherapy. Signal Transduct Target Ther 2022; 7:117. [PMID: 35387984 PMCID: PMC8987060 DOI: 10.1038/s41392-022-00951-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Oncolytic viruses (OVs) are emerging as potentially useful platforms in treatment methods for patients with tumors. They preferentially target and kill tumor cells, leaving healthy cells unharmed. In addition to direct oncolysis, the essential and attractive aspect of oncolytic virotherapy is based on the intrinsic induction of both innate and adaptive immune responses. To further augment this efficacious response, OVs have been genetically engineered to express immune regulators that enhance or restore antitumor immunity. Recently, combinations of OVs with other immunotherapies, such as immune checkpoint inhibitors (ICIs), chimeric antigen receptors (CARs), antigen-specific T-cell receptors (TCRs) and autologous tumor-infiltrating lymphocytes (TILs), have led to promising progress in cancer treatment. This review summarizes the intrinsic mechanisms of OVs, describes the optimization strategies for using armed OVs to enhance the effects of antitumor immunity and highlights rational combinations of OVs with other immunotherapies in recent preclinical and clinical studies.
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Affiliation(s)
- Yaomei Tian
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.,College of Bioengineering, Sichuan University of Science & Engineering, No. 519, Huixing Road, 643000, Zigong, Sichuan, People's Republic of China
| | - Daoyuan Xie
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.
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Zeng J, Li X, Sander M, Zhang H, Yan G, Lin Y. Oncolytic Viro-Immunotherapy: An Emerging Option in the Treatment of Gliomas. Front Immunol 2021; 12:721830. [PMID: 34675919 PMCID: PMC8524046 DOI: 10.3389/fimmu.2021.721830] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/16/2021] [Indexed: 01/17/2023] Open
Abstract
The prognosis of malignant gliomas remains poor, with median survival fewer than 20 months and a 5-year survival rate merely 5%. Their primary location in the central nervous system (CNS) and its immunosuppressive environment with little T cell infiltration has rendered cancer therapies mostly ineffective, and breakthrough therapies such as immune checkpoint inhibitors (ICIs) have shown limited benefit. However, tumor immunotherapy is developing rapidly and can help overcome these obstacles. But for now, malignant gliomas remain fatal with short survival and limited therapeutic options. Oncolytic virotherapy (OVT) is a unique antitumor immunotherapy wherein viruses selectively or preferentially kill tumor cells, replicate and spread through tumors while inducing antitumor immune responses. OVTs can also recondition the tumor microenvironment and improve the efficacy of other immunotherapies by escalating the infiltration of immune cells into tumors. Some OVTs can penetrate the blood-brain barrier (BBB) and possess tropism for the CNS, enabling intravenous delivery. Despite the therapeutic potential displayed by oncolytic viruses (OVs), optimizing OVT has proved challenging in clinical development, and marketing approvals for OVTs have been rare. In June 2021 however, as a genetically engineered OV based on herpes simplex virus-1 (G47Δ), teserpaturev got conditional and time-limited approval for the treatment of malignant gliomas in Japan. In this review, we summarize the current state of OVT, the synergistic effect of OVT in combination with other immunotherapies as well as the hurdles to successful clinical use. We also provide some suggestions to overcome the challenges in treating of gliomas.
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Affiliation(s)
- Jiayi Zeng
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiangxue Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Peking University, Beijing, China
| | - Max Sander
- Department of International Cooperation, Guangzhou Virotech Pharmaceutical Co., Ltd., Guangzhou, China
| | - Haipeng Zhang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China
| | - Guangmei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yuan Lin
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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