携带GV1001的重组瘤性流感病毒触发了抗瘤免疫反应
Cong Li1,2, Yuying Tian1,2, Fang Sun1
1Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China.
Human gene therapy
|August 30, 2023
概括
被设计为携带GV1001的性流感病毒可以选择性地杀死肝癌细胞并增强免疫系统. 这种有前途的免疫疗法方法显著抑制瘤生长,并在肝细胞癌的临床前模型中改善存活率.
科学领域:
- 病毒学 病毒学
- 免疫治疗是一种免疫疗法.
- 肝细胞癌研究 肝细胞癌研究
背景情况:
- 瘤病毒治疗提供选择性瘤细胞溶解和肝癌的免疫激活.
- 肝细胞癌 (HCC) 是一种常见且致命的恶性瘤,治疗选择有限.
研究的目的:
- 开发和评估一种携带GV1001的重组型流感病毒,用于HCC治疗.
- 评估工程病毒的选择性细胞毒性,抗瘤疗效和免疫调节作用.
主要方法:
- 用GV1001来设计型流感病毒 (PR8菌株) 的反向遗传学.
- 在培养HCC细胞和正常肝细胞的体外研究.
- 在小鼠体内进行诱导性HCC的研究,包括瘤生长,免疫细胞分析和生存评估.
- 病毒通过测序,凝血试验,TCID50,电子显微镜和免疫光学进行鉴定.
主要成果:
- 再组合病毒在体外表现出选择性细胞毒性,只杀死HCC细胞.
- 在体内,型病毒显著抑制了小鼠肝脏瘤的生长.
- 治疗诱导了强大的抗瘤免疫反应,增加了CD4+和CD8+T淋巴细胞,改善了生存率.
结论:
- 携带GV1001的工程瘤性流感病毒是对HCC的强大和选择性剂.
- 这种方法显示出作为肝细胞癌新型免疫疗法的显著前景.
更多相关视频
07:05In Vivo Assay for Detection of Antigen-specific T-cell Cytolytic Function Using a Vaccination Model
Published on: November 28, 2017
9.9K
08:52Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
17.3K
相关概念视频
01:27Tumor Immunotherapy
555
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
555
01:30Cancer Vaccines
400
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
400
01:27Cytotoxic T Cells-mediated Immune Response
963
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
963
01:29Immune Response Against Viral Pathogens
824
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
824