How transcription factors drive choice of the T cell fate.
How transcription factors drive choice of the T cell fate.
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DOI:
10.1038/s41577-020-00426-6
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Rothenberg EV
中科院分区:
文献类型:
--
作者:
Hosokawa H;Rothenberg EV
Recent evidence has elucidated how multipotent blood progenitors transform their identities in the thymus and undergo commitment to become T cells. Together with environmental signalling, a core group of transcription factors have essential roles in this process by directly activating and repressing specific genes. Many of these transcription factors also function again, but controlling different genes, in later T cell development. Here, we review how these transcription factors work to change the activities of specific genomic loci during early intrathymic development to establish T lineage identity. We introduce the key regulators and highlight newly emergent insights into the rules that govern their actions. Whole-genome deep sequencing-based analysis has revealed unexpectedly rich relationships between inherited epigenetic states, transcription factor-DNA binding affinity thresholds, and influences of given transcription factors on the activities of other factors in the same cells. Together, these mechanisms determine T cell identity and make the lineage choice irreversible.
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