Correa Luis O, Jordan Martha S, Carty Shannon A
Graduate Program in Immunology, University of Michigan, Ann Arbor, MI.
Department of Pathology and Laboratory Medicine; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Crit Rev Immunol. 2020;40(2):135-156. doi: 10.1615/CritRevImmunol.2020033728.
T lymphocytes undergo carefully orchestrated programming during development in the thymus and subsequently during differentiation in the periphery. This intricate specification allows for cell-type and context-specific transcriptional programs that regulate immune responses to infection and malignancy. Epigenetic changes, including histone modifications and covalent modification of DNA itself through DNA methylation, are now recognized to play a critical role in these cell-fate decisions. DNA methylation is mediated primarily by the actions of the DNA methyltransferase (DNMT) and ten-eleven-translocation (TET) families of epigenetic enzymes. In this review, we discuss the role of DNA methylation and its enzymatic regulators in directing the development and differentiation of CD4+ and CD8+ T-cells.
T淋巴细胞在胸腺发育过程中以及随后在外周分化过程中经历精心编排的程序设定。这种复杂的特异性允许细胞类型和背景特异性的转录程序,从而调节对感染和恶性肿瘤的免疫反应。表观遗传变化,包括组蛋白修饰以及通过DNA甲基化对DNA本身的共价修饰,现在被认为在这些细胞命运决定中起关键作用。DNA甲基化主要由DNA甲基转移酶(DNMT)和表观遗传酶的十一-易位(TET)家族的作用介导。在本综述中,我们讨论DNA甲基化及其酶调节剂在指导CD4+和CD8+T细胞的发育和分化中的作用。