Activation of the Arterial Program Drives Development of Definitive Hemogenic Endothelium with Lymphoid Potential.

Activation of the Arterial Program Drives Development of Definitive Hemogenic Endothelium with Lymphoid Potential.
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DOI:
10.1016/j.celrep.2018.04.092
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发表时间:
2018-05-22
期刊:
影响因子:
8.8
通讯作者:
Slukvin II
Slukvin II
中科院分区:
生物学1区
文献类型:
--
作者:
Park MA;Kumar A;Jung HS;Uenishi G;Moskvin OV;Thomson JA;Slukvin II

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Understanding pathways guiding the development of definitive hematopoiesis with lymphoid potential is essential for advancing human pluripotent stem cell (hPSC) technologies for treatment of blood diseases and immunotherapies. In the embryo, lymphoid progenitors and hematopoietic stem cells (HSCs) arise from hemogenic endothelium (HE) lining arteries, but not veins. Here, we show that activation of arterial program through ETS1 overexpression or by modulating MAPK/ERK signaling pathways at the mesodermal stage of development, dramatically enhanced formation of arterial type HE expressing DLL4 and CXCR4. Blood cells generated from arterial HE were more than 100-fold enriched in T cell precursor frequency and possessed the capacity to produce B lymphocytes and red blood cells expressing high levels of BCL11a and β-globin. Together, these findings provide an innovative strategy to aid in the generation of definitive lymphomyeloid progenitors and lymphoid cells from hPSCs for immunotherapy through enhancing arterial programming of HE.
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