修饰复病毒细胞分解 (I):组合疗法
Yoshinori Mori1,2, Sandra G Nishikawa1, Andreea R Fratiloiu1
1Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada.
Viruses
|July 29, 2023
概括
瘤性转录病毒与化疗相结合有效治疗胃癌. 这种组合在体外和体内协同增强癌细胞杀死,支持进一步的临床试验.
科学领域:
- 在瘤学瘤学.
- 病毒学 病毒学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 第四期胃癌的结果不好,需要新的治疗方法,特别是在亚洲人群中.
- 瘤病毒为各种癌症提供了潜在的治疗途径.
研究的目的:
- 为了评估瘤性转录病毒在结合化疗治疗胃癌的疗效.
- 研究reovirus和化疗剂对胃癌细胞的协同作用.
主要方法:
- 在体外研究中使用了WST-1测定和流动细胞计量来评估细胞活力,reovirus蛋白质表达和亡.
- 在体内研究中,在小鼠模型中进行了瘤内注射的reovirus和化疗剂,并监测瘤大小.
主要成果:
- 在实验室中,reovirus和化疗显示出协同作用的细胞病变效应,增强了reovirus的复制,并增加了apoptosis.
- 与单独的reovirus相比,组合疗法在体内显著减少了瘤大小.
- 复病毒性瘤溶解与Ras通路激活的相关性很弱.
结论:
- 瘤性转录病毒是胃癌的一种有前途的治疗方法,特别是与化疗相结合时.
- 组合疗法表现出增强的细胞毒性和瘤减少.
- 进一步的临床试验是有必要的,与开发生物标志物对reovirus响应性的同时.
相关概念视频
Retrovirus Life Cycles
46.2K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
46.2K
Cytotoxic T Cells-mediated Immune Response
972
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...
972
Subviral Agents
42
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
42


