Investigating Thymic Epithelial Cell Diversity Using Systems Biology.

Investigating Thymic Epithelial Cell Diversity Using Systems Biology.
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DOI:
10.4049/jimmunol.2200610
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发表时间:
2023-04-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Ziegler SF
Ziegler SF
中科院分区:
其他
文献类型:
--
作者:
Chiu H;Linsley PS;Ziegler SF

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胸腺是一个复杂的器官,由不同的胸腺上皮细胞(TEC)组成。皮质和髓质TEC(cTEC和mTEC)及其亚群在协调功能性和自身耐受性T细胞的发育和选择中具有不同的作用。单细胞RNA测序(scRNA-seq)等技术的最新进展使得研究和解决TEC的异质性成为可能。这些研究结果提供了进一步了解的分子机制,调节TEC的功能和组织限制性抗原(TSA)的表达。在这篇简短的综述中,我们重点介绍了新特征的TEC亚群及其在支持T细胞发育方面的功能多样性。我们还讨论了最近发现的TEC发展的背景下,以及在胚胎发育胸腺退化过程中发生的细胞和分子的变化,自我抗原的表达。
The thymus is an intricate organ consisting of a diverse population of thymic epithelial cells (TEC). Cortical and medullary TECs (cTECs and mTECs) and their subpopulations have distinct roles in coordinating the development and selection of functionally competent and self-tolerant T cells. Recent advances made in technologies such as single-cell RNA sequencing (scRNA-seq) have made it possible to investigate and resolve the heterogeneity in TECs. These findings have provided further understanding of the molecular mechanisms regulating TEC function and expression of tissue restricted antigens (TSAs). In this brief review, we focus on the newly characterized subsets of TECs and their diversity in relation to their functions in supporting T cell development. We also discuss recent discoveries on expression of self-antigens in the context of TEC development as well as the cellular and molecular changes occurring during embryonic development to thymic involution.
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