基于异醇的分子通过向TM4SF5和SLAMF7链接来恢复NK细胞在肝癌发生中的免疫监测
Ji Eon Kim1,2, Hyun Su Kim3, Wonsik Kim1
1Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul, Republic of Korea.
Signal transduction and targeted therapy
|January 19, 2025
概括
跨膜4L六家族成员5 (TM4SF5) 通过帮助细胞逃避自然杀手 (NK) 细胞来促进肝癌. 新的TM4SF5特异性异醇 (TSI) 药物恢复NK细胞监测,阻止癌症的发展.
科学领域:
- 肝细胞癌 (HCC) 研究研究
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 肝细胞癌 (HCC) 的发展涉及复杂的细胞环境相互作用.
- 目前的HCC免疫疗法需要新的生物标志物和免疫检查点目标.
- 跨膜4L六家族成员5 (TM4SF5) 促进HCC,但其在免疫逃避中的作用尚不清楚.
研究的目的:
- 研究TM4SF5表达性肝癌细胞如何逃避自然杀手 (NK) 细胞监测.
- 为了确定TM4SF5介导的免疫逃避是否可以被小分子抑制剂阻断.
- 确定针对TM4SF5在HCC中的新型治疗策略.
主要方法:
- 结构-活性关系分析以开发TM4SF5特定的异醇 (TSI) 抑制剂.
- 评估NK细胞细胞毒性和HCC细胞系中的配体/受体表达.
- 使用老鼠异种移植模型来评估TSI in vivo的疗效.
主要成果:
- TM4SF5通过促进其溶酶体降解来降低像SLAMF7这样的NK细胞激活配体的调节.
- TSI处理阻断TM4SF5/SLAMF7相互作用和SLAMF7降解,增强NK细胞活性.
- 在小鼠模型中进行的TSI治疗减少了HCC的发展,并恢复了NK细胞监测.
结论:
- TM4SF5通过通过SLAMF7下调来降低NK细胞细胞毒性,促进HCC免疫逃避.
- 基于 TSI 的小分子可以抑制 TM4SF5 驱动的肝癌发生.
- 通过向TM4SF5恢复NK细胞监测,代表了对HCC的有希望的治疗途径.
更多相关视频
11:08Advances in Human Induced Pluripotent Stem Cell-Derived Chimeric Antigen Receptor-Expressing Natural Killer Cells
Published on: February 14, 2025
681
06:55Measurement of Natural Killer Cell-Mediated Cytotoxicity and Migration in the Context of Hepatic Tumor Cells
Published on: February 22, 2020
18.5K
相关概念视频
01:27Cytotoxic T Cells-mediated Immune Response
838
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...
838
01:28Cells of the Innate Immune Response
1.4K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.4K
02:57Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K