向TM4SF1促进瘤衰老,增强肝细胞癌中CD8+T细胞细胞毒功能
Weifeng Zeng1,2,3, Furong Liu1,2,3, Yachong Liu1,2,3
1Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Clinical and molecular hepatology
|December 30, 2024
概括
跨膜4L六个家族成员1 (TM4SF1) 通过抑制衰老和促进免疫逃避,驱动肝细胞癌 (HCC) 的进展. 向TM4SF1可能会提高HCC患者的免疫疗法疗效.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 跨膜4L6家族成员1 (TM4SF1) 与各种癌症有关.
- 它在肝细胞癌 (HCC) 进展和衰老中的作用尚未完全理解.
研究的目的:
- 研究TM4SF1在HCC进展,衰老和免疫逃避中的作用.
- 探索TM4SF1作为HCC的潜在治疗点,特别是与免疫疗法结合使用.
主要方法:
- 免疫组织化学和流细胞测量以评估TM4SF1在HCC中的表达.
- 细胞衰老试验 (SA-β-gal,西部斑) 和蛋白质相互作用研究 (IP-MS,Co-IP,BiFC,IF).
- 对瘤透免疫细胞的分析和建立HCC小鼠模型.
主要成果:
- 在HCC中,高TM4SF1表达与通过p16/p21上调调节诱导瘤进展和衰老相关.
- TM4SF1通过AKT/PDPK1相互作用促进HCC,降低p16/p21的调节,并增强PD-L1/MHC I类调节.
- TM4SF1有助于CD8+T细胞耗尽和抗PD-1疗法的抵抗.
结论:
- TM4SF1通过AKT通路调节HCC细胞衰老和免疫逃避.
- 向TM4SF1诱导衰老,减少瘤负担,并与抗PD-1疗法协同作用.
- TM4SF1是HCC的有希望的治疗点,特别是在与免疫疗法结合使用时.
更多相关视频
07:36Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice
Published on: June 12, 2021
6.4K
19:44Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen
Published on: May 30, 2012
18.7K
相关概念视频
Cytotoxic T Cells-mediated Immune Response
844
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...
844
Targeted 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
Replicative Cell Senescence
3.6K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
3.6K
Tumor Immunotherapy
475
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.
475
