DNA低甲基化特征定义了皮肤组织中的人类调节性T细胞,并识别出其血液中循环的对应细胞。

DNA hypomethylation traits define human regulatory T cells in cutaneous tissue and identify their blood recirculating counterparts.

作者信息

Beumer Niklas, Imbusch Charles D, Kaufmann Tamara, Schmidleithner Lisa, Gütter Kathrin, Stüve Philipp, Marchel Harriet, Weichenhan Dieter, Bähr Marion, Ruhland Brigitte, Marini Federico, Sanderink Lieke, Ritter Uwe, Simon Malte, Braband Kathrin Luise, Voss Morten Michael, Helbich Sara Salome, Mihoc Delia Mihaela, Hotz-Wagenblatt Agnes, Nassabi Hadrian, Eigenberger Andreas, Prantl Lukas, Gebhard Claudia, Rehli Michael, Strieder Nicholas, Singh Kartikeya, Schmidl Christian, Plass Christoph, Huehn Jochen, Hehlgans Thomas, Polansky Julia K, Brors Benedikt, Delacher Michael, Feuerer Markus

机构信息

Institute of Immunology, University Medical Center Mainz, Mainz, Germany.

Research Center for Immunotherapy, University Medical Center Mainz, Mainz, Germany.

出版信息

Nat Immunol. 2025 Jul 16. doi: 10.1038/s41590-025-02210-x.

Abstract

CD4 regulatory T (T) cells in tissues play crucial immunoregulatory and regenerative roles. Despite their importance, the epigenetics and differentiation of human tissue T cells are incompletely understood. Here, we performed genome-wide DNA methylation analysis of human T cells from skin and blood and integrated these data into a multiomic framework, including chromatin accessibility and gene expression. This analysis identified programs that governed the tissue adaptation of skin T cells. We found that subfamilies of transposable elements represented a major constituent of the hypomethylated landscape in tissue T cells. Based on T cell antigen receptor sequence and DNA hypomethylation homologies, our data indicate that blood CCR8 T cells contain recirculating human skin T cells. Conversely, differences in chromatin accessibility and gene expression suggest a certain reversal of the tissue adaptation program during recirculation. Our findings provide insights into the biology of human tissue T cells, which may help harness these cells for therapeutic purposes.

摘要

组织中的CD4调节性T(T)细胞发挥着关键的免疫调节和再生作用。尽管它们很重要,但人类组织T细胞的表观遗传学和分化仍未被完全理解。在这里,我们对来自皮肤和血液的人类T细胞进行了全基因组DNA甲基化分析,并将这些数据整合到一个多组学框架中,包括染色质可及性和基因表达。该分析确定了控制皮肤T细胞组织适应性的程序。我们发现,转座子亚家族是组织T细胞中低甲基化景观的主要组成部分。基于T细胞抗原受体序列和DNA低甲基化同源性,我们的数据表明血液中的CCR8 T细胞包含循环的人类皮肤T细胞。相反,染色质可及性和基因表达的差异表明在循环过程中组织适应性程序存在一定程度的逆转。我们的研究结果为人类组织T细胞的生物学特性提供了见解,这可能有助于将这些细胞用于治疗目的。

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