HDAC3 Is a Master Regulator of mTEC Development.
HDAC3 Is a Master Regulator of mTEC Development.
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DOI:
10.1016/j.celrep.2016.03.048
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发表时间:
2016-04-19
期刊:
影响因子:
8.8
通讯作者:
Abramson J
中科院分区:
文献类型:
--
作者:
Goldfarb Y;Kadouri N;Levi B;Sela A;Herzig Y;Cohen RN;Hollenberg AN;Abramson J
The thymus provides a unique microenvironment enabling development and selection of T lymphocytes. Medullary thymic epithelial cells (mTECs) play a pivotal role in this process by facilitating negative selection of self-reactive thymocytes and the generation of Foxp3+ regulatory T cells. Although studies highlighted the non-canonical NFκB pathway as the key regulator of mTEC development, comprehensive understanding of the molecular pathways regulating this process still remains incomplete. Here we demonstrate that the development of functionally competent mTECs is regulated by the histone deacetylase 3 (Hdac3). Although histone deacetylases are global transcriptional regulators this effect is highly specific only to Hdac3, as neither Hdac1 nor Hdac2 inactivation caused mTEC ablation. Interestingly, Hdac3 induces an mTEC-specific transcriptional program independently of the previously recognized RANK-NFκB signaling pathway. Thus, our findings uncover yet another layer of complexity of TEC lineage divergence and highlight Hdac3 as a major and specific molecular switch crucial for mTEC differentiation. Goldfarb et al. show that Hdac3 is essential for normal development and function of medullary thymic epithelial cells (mTECs) independently of non-canonical NFκB signaling. Their findings highlight Hdac3 as a master switch inducing the mTEC transcriptional program in immature TECs.
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发表时间:
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期刊:
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