Chromatin remodeler Znhit1 preserves hematopoietic stem cell quiescence by determining the accessibility of distal enhancers.
Chromatin remodeler Znhit1 preserves hematopoietic stem cell quiescence by determining the accessibility of distal enhancers.
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染色质重塑因子 Znhit1 通过确定远端增强子的可及性来保持造血干细胞静止
DOI:
10.1038/s41375-020-0988-5
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发表时间:
2020-12
期刊:
影响因子:
11.4
通讯作者:
Zhao B
中科院分区:
文献类型:
--
作者:
Sun S;Jiang N;Jiang Y;He Q;He H;Wang X;Yang L;Li R;Liu F;Lin X;Zhao B
Hematopoietic stem cell (HSC) utilizes its quiescence feature to combat exhaustion for lifetime blood cell supply. To date, how certain chromatin architecture and subsequent transcription profile permit HSC quiescence remains unclear. Here, we show an essential role of chromatin remodeler zinc finger HIT-type containing 1 (Znhit1) in maintaining HSC quiescence. We find that loss of Znhit1 leads to exhaustion of stem cell pool and impairment of hematopoietic function. Mechanically, Znhit1 determines the chromatin accessibility at distal enhancers of HSC quiescence genes, includingPten,Fstl1, andKlf4, for sustained transcription and consequent PI3K–Akt signaling inhibition. Moreover, Znhit1–Pten–PI3K–Akt axis also participates in controlling myeloid expansion and B-lymphoid specification. Our findings therefore identify a dominant role of Znhit1-mediated chromatin remodeling in preserving HSC function for hematopoietic homeostasis.
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DOI:
10.1038/nrm3591
发表时间:
2013-06
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.7
作者:
Bermúdez Brito M;Goulielmaki E;Papakonstanti EA
通讯作者:
Papakonstanti EA
影响因子:
23.9
作者:
Lee, Jae Y.;Nakada, Daisuke;Yilmaz, Omer H.;Tothova, Zuzana;Joseph, Nancy M.;Lim, Megan S.;Gilliland, D. Gary;Morrison, Sean J.
通讯作者:
Morrison, Sean J.
影响因子:
56.9
作者:
Cheng, T;Rodrigues, N;Scadden, DT
通讯作者:
Scadden, DT
DOI:
10.1073/pnas.1200106109
发表时间:
2012-07-03
影响因子:
11.1
作者:
Kovalchuk, Alexander L.;Ansarah-Sobrinho, Camilo;Casellas, Rafael
通讯作者:
Casellas, Rafael