Chromatin and Transcriptional Analysis of Mesoderm Progenitor Cells Identifies HOPX as a Regulator of Primitive Hematopoiesis.
Chromatin and Transcriptional Analysis of Mesoderm Progenitor Cells Identifies HOPX as a Regulator of Primitive Hematopoiesis.
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中胚层祖细胞的染色质和转录分析将Hopx鉴定为原始造血的调节剂。
DOI:
10.1016/j.celrep.2017.07.067
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发表时间:
2017-08-15
期刊:
影响因子:
8.8
通讯作者:
Murry CE
中科院分区:
文献类型:
--
作者:
Palpant NJ;Wang Y;Hadland B;Zaunbrecher RJ;Redd M;Jones D;Pabon L;Jain R;Epstein J;Ruzzo WL;Zheng Y;Bernstein I;Margolin A;Murry CE
We analyzed chromatin dynamics and transcriptional activity of human embryonic stem cell (hESC)-derived cardiac progenitor cells (CPCs) and KDR+/CD34+ endothelial cells generated from different mesodermal origins. Using an unbiased algorithm to hierarchically rank genes modulated at the level of chromatin and transcription, we identified candidate regulators of mesodermal lineage determination. HOPX, a non-DNA binding homeodomain protein, was identified as a candidate regulator of blood-forming endothelial cells. Using HOPX reporter and knockout hESCs we show that HOPX regulates blood formation. Loss of HOPX does not impact endothelial fate specification but markedly reduces primitive hematopoiesis, acting at least in part through failure to suppress Wnt/β-catenin signaling. Thus, chromatin state analysis permits identification of regulators of mesodermal specification, including a conserved role for HOPX in governing primitive hematopoiesis. Palpant et al. analyze gene expression and chromatin dynamics in cardiovascular progenitor cells derived from hPSCs to elucidate genes governing cell fate. HOPX is identified as a regulator of primitive hematopoiesis, providing insight into controlling cell lineages from pluripotency for disease modeling or therapeutic applications.
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影响因子:
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通讯作者:
Brunet A
影响因子:
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作者:
Bondue, Antoine;Lapouge, Gaelle;Blanpain, Cedric
通讯作者:
Blanpain, Cedric