微生物后生物酸的代谢驱动抗癌CAR T细胞
Sarah Staudt1, Fabian Nikolka2, Markus Perl3
1Lehrstuhl für Zelluläre Immuntherapie, Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Würzburg, Germany.
bioRxiv : the preprint server for biology
|September 24, 2024
概括
微生物后生物,如酸,可以被宿主细胞代谢以影响表观遗传修饰. 这一过程增强了化学抗原受体 (CAR) T细胞功能和癌症免疫治疗中的治疗疗效.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢途径 代谢途径
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 微生物组显著影响免疫治疗的结果.
- 后生物,微生物的副产品,通过表观遗传和细胞信号调节免疫平衡.
- 了解后生物与宿主相互作用对于增强免疫疗法至关重要.
研究的目的:
- 为了阐明后生物 pentanoate 的代谢命运和表观遗传影响.
- 研究ATP-酸酶在酸代谢和表观遗传重编程中的作用.
- 评估酸在化学抗原受体 (CAR) T 细胞治疗中的治疗潜力.
主要方法:
- 在TCA循环中对酸的代谢追踪.
- 确定参与酸代谢和核酸盐运输的关键酶.
- 在CAR T细胞中对表观遗传修饰 (基因组乙化) 的评估.
- 对CAR T细胞耗尽和分化标记物的评估.
- 在患者队列和临床前癌症模型中的验证.
主要成果:
- 五酸盐通过TCA循环中的乙-CoA和基尼-CoA进入点代谢为酸盐.
- 鉴定出ATP-酸酶对于将酸盐重定向到细胞核至关重要,将新陈代谢与基因素乙化联系起来.
- 五酸盐治疗减轻了T细胞的枯竭,并促进了CAR T细胞的天真样分化.
- 酸的治疗疗效在患者衍生和CAR T细胞治疗的同源模型中得到证实.
结论:
- 后生物体被整合到宿主线粒体代谢中,并影响表观遗传编程.
- 五酸作为微生物和哺乳动物之间的沟通桥梁,影响T细胞分化和免疫疗法的有效性.
- 这项研究强调了一种通过微生物代谢物干预来增强细胞免疫疗法的新机制.
更多相关视频
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
09:34Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
Published on: February 17, 2022
3.3K
相关概念视频
Tumor Immunotherapy
491
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.
491
Adaptive Mechanisms in Cancer Cells
5.7K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.7K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Targeted Cancer Therapies
7.5K
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...
7.5K
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
