Non-Epithelial Stromal Cells in Thymus Development and Function.

Non-Epithelial Stromal Cells in Thymus Development and Function.
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非上皮基质细胞在胸腺发育和功能中的作用

DOI:
10.3389/fimmu.2021.634367
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发表时间:
2021
影响因子:
7.3
通讯作者:
Anderson G
Anderson G
中科院分区:
医学2区
文献类型:
--
作者:
James KD;Jenkinson WE;Anderson G

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胸腺通过特殊的微环境支持T细胞的发育,确保T细胞群体的多样性、功能性和自我耐受性。这些微环境被经典地定义为不同的皮质和髓质区域,每个区域都包含专门的基质细胞亚群。对皮质和髓质中的胸腺上皮细胞(TEC)的广泛研究已经确定了它们在T细胞发育中的重要作用。值得注意的是,在胸腺微环境中,与TEC一起存在着额外的非上皮性基质细胞(NES),包括多个间充质细胞和内皮细胞亚群。与我们目前对TEC生物学的理解相反,NES的发育起源、谱系关系和功能特性仍然知之甚少。然而,实验证据表明,这些细胞通过直接影响T细胞的发育,或通过间接调节TEC的发育和/或功能,对胸腺功能至关重要。在这里,我们关注NES对胸腺微环境的贡献,包括它们的表型鉴定和功能分类,并探讨它们对胸腺功能的影响。
The thymus supports T-cell development via specialized microenvironments that ensure a diverse, functional and self-tolerant T-cell population. These microenvironments are classically defined as distinct cortex and medulla regions that each contain specialized subsets of stromal cells. Extensive research on thymic epithelial cells (TEC) within the cortex and medulla has defined their essential roles during T-cell development. Significantly, there are additional non-epithelial stromal cells (NES) that exist alongside TEC within thymic microenvironments, including multiple subsets of mesenchymal and endothelial cells. In contrast to our current understanding of TEC biology, the developmental origins, lineage relationships, and functional properties, of NES remain poorly understood. However, experimental evidence suggests these cells are important for thymus function by either directly influencing T-cell development, or by indirectly regulating TEC development and/or function. Here, we focus attention on the contribution of NES to thymic microenvironments, including their phenotypic identification and functional classification, and explore their impact on thymus function.
DOI: 10.4049/jimmunol.1800348
发表时间: 2018-07-15
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发表时间: 2011-06-06
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影响因子: --
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Bréart B;Ramos-Perez WD;Mendoza A;Salous AK;Gobert M;Huang Y;Adams RH;Lafaille JJ;Escalante-Alcalde D;Morris AJ;Schwab SR
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