Histone H2A.X phosphorylation and Caspase-Initiated Chromatin Condensation in late-stage erythropoiesis.
Histone H2A.X phosphorylation and Caspase-Initiated Chromatin Condensation in late-stage erythropoiesis.
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组蛋白H_2A.X磷酸化和半胱氨酸天冬氨酸氨基转移酶启动的晚期红细胞生成中的染色质缩合。
DOI:
10.1186/s13072-021-00408-5
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发表时间:
2021-07-30
影响因子:
3.9
通讯作者:
Bulger M
中科院分区:
文献类型:
--
作者:
Jeffery NN;Davidson C;Peslak SA;Kingsley PD;Nakamura Y;Palis J;Bulger M
Condensation of chromatin prior to enucleation is an essential component of terminal erythroid maturation, and defects in this process are associated with inefficient erythropoiesis and anemia. However, the mechanisms involved in this phenomenon are not well understood. Here, we describe a potential role for the histone variant H2A.X in erythropoiesis. We find in multiple model systems that this histone is essential for normal maturation, and that the loss of H2A.X in erythroid cells results in dysregulation in expression of erythroid-specific genes as well as a nuclear condensation defect. In addition, we demonstrate that erythroid maturation is characterized by phosphorylation at both S139 and Y142 on the C-terminal tail of H2A.X during late-stage erythropoiesis. Knockout of the kinase BAZ1B/WSTF results in loss of Y142 phosphorylation and a defect in nuclear condensation, but does not replicate extensive transcriptional changes to erythroid-specific genes observed in the absence of H2A.X. We relate these findings to Caspase-Initiated Chromatin Condensation (CICC) in terminal erythroid maturation, where aspects of the apoptotic pathway are invoked while apoptosis is specifically suppressed. The online version contains supplementary material available at 10.1186/s13072-021-00408-5.
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影响因子:
3.7
作者:
Kurita R;Suda N;Sudo K;Miharada K;Hiroyama T;Miyoshi H;Tani K;Nakamura Y
通讯作者:
Nakamura Y
影响因子:
14.9
作者:
Gene Ontology Consortium
通讯作者:
Gene Ontology Consortium
影响因子:
1.6
作者:
Dickey JS;Redon CE;Nakamura AJ;Baird BJ;Sedelnikova OA;Bonner WM
通讯作者:
Bonner WM
影响因子:
14.9
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Kuleshov MV;Jones MR;Rouillard AD;Fernandez NF;Duan Q;Wang Z;Koplev S;Jenkins SL;Jagodnik KM;Lachmann A;McDermott MG;Monteiro CD;Gundersen GW;Ma'ayan A
通讯作者:
Ma'ayan A
影响因子:
12.4
作者:
Farrés J;Llacuna L;Martin-Caballero J;Martínez C;Lozano JJ;Ampurdanés C;López-Contreras AJ;Florensa L;Navarro J;Ottina E;Dantzer F;Schreiber V;Villunger A;Fernández-Capetillo O;Yélamos J
通讯作者:
Yélamos J