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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2018 ; 9
(1
): 1828
Nephropedia Template TP
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English Wikipedia
NOTCH signaling specifies arterial-type definitive hemogenic endothelium from
human pluripotent stem cells
#MMPMID29739946
Uenishi GI
; Jung HS
; Kumar A
; Park MA
; Hadland BK
; McLeod E
; Raymond M
; Moskvin O
; Zimmerman CE
; Theisen DJ
; Swanson S
; J Tamplin O
; Zon LI
; Thomson JA
; Bernstein ID
; Slukvin II
Nat Commun
2018[May]; 9
(1
): 1828
PMID29739946
show ga
NOTCH signaling is required for the arterial specification and formation of
hematopoietic stem cells (HSCs) and lympho-myeloid progenitors in the embryonic
aorta-gonad-mesonephros region and extraembryonic vasculature from a distinct
lineage of vascular endothelial cells with hemogenic potential. However, the role
of NOTCH signaling in hemogenic endothelium (HE) specification from human
pluripotent stem cell (hPSC) has not been studied. Here, using a chemically
defined hPSC differentiation system combined with the use of DLL1-Fc and DAPT to
manipulate NOTCH, we discover that NOTCH activation in hPSC-derived immature HE
progenitors leads to formation of CD144(+)CD43(-)CD73(-)DLL4(+)Runx1?+?23-GFP(+)
arterial-type HE, which requires NOTCH signaling to undergo
endothelial-to-hematopoietic transition and produce definitive lympho-myeloid and
erythroid cells. These findings demonstrate that NOTCH-mediated arterialization
of HE is an essential prerequisite for establishing definitive lympho-myeloid
program and suggest that exploring molecular pathways that lead to arterial
specification may aid in vitro approaches to enhance definitive hematopoiesis
from hPSCs.