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Zbtb20 抑制 CD8 T 细胞免疫代谢,限制记忆细胞分化和抗肿瘤免疫。

Zbtb20 Restrains CD8 T Cell Immunometabolism and Restricts Memory Differentiation and Antitumor Immunity.

机构信息

Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03755; and.

Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756.

出版信息

J Immunol. 2020 Nov 15;205(10):2649-2666. doi: 10.4049/jimmunol.2000459. Epub 2020 Sep 30.

DOI:10.4049/jimmunol.2000459
PMID:32998985
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7931848/
Abstract

CD8 T cell differentiation is orchestrated by dynamic metabolic changes that direct activation, proliferation, cytotoxic function, and epigenetic changes. We report that the BTB-ZF family transcriptional repressor Zbtb20 negatively regulates CD8 T cell metabolism and memory differentiation in mice. Effector and memory CD8 T cells with conditional Zbtb20 deficiency displayed enhanced mitochondrial and glycolytic metabolism, and memory CD8 T cells had enhanced spare respiratory capacity. Furthermore, Zbtb20-deficient CD8 T cells displayed increased flexibility in the use of mitochondrial fuel sources. Phenotypic and transcriptional skewing toward the memory fate was observed during the CD8 T cell response to Memory cells mounted larger secondary responses and conferred better protection following tumor challenge. These data suggest that inactivation of Zbtb20 may offer an approach to enhance metabolic activity and flexibility and improve memory CD8 T cell differentiation, useful attributes for T cells used in adoptive immunotherapy.

摘要

CD8 T 细胞分化是由动态代谢变化来调控的,这些变化决定了 T 细胞的激活、增殖、细胞毒性功能和表观遗传变化。我们报告称,BTB-ZF 家族转录抑制因子 Zbtb20 负调控小鼠 CD8 T 细胞代谢和记忆分化。条件性缺失 Zbtb20 的效应器和记忆 CD8 T 细胞表现出增强的线粒体和糖酵解代谢,记忆 CD8 T 细胞具有增强的备用呼吸能力。此外,缺失 Zbtb20 的 CD8 T 细胞在使用线粒体燃料来源方面表现出更高的灵活性。在 CD8 T 细胞对感染或肿瘤的反应过程中观察到向记忆命运的表型和转录倾斜。记忆细胞在二次反应中表现出更大的反应,在肿瘤挑战后提供更好的保护。这些数据表明,Zbtb20 的失活可能提供了一种增强代谢活性和灵活性以及改善记忆 CD8 T 细胞分化的方法,这对于过继免疫治疗中使用的 T 细胞是有用的特性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0186/7931848/273fec43f309/nihms-1628610-f0011.jpg
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