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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 Stem+Cell+Reports
2017 ; 9
(5
): 1642-1659
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gab.com Text
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English Wikipedia
Functional Antagonism between OTX2 and NANOG Specifies a Spectrum
of Heterogeneous Identities in Embryonic Stem Cells
#MMPMID29056334
Acampora D
; Di Giovannantonio LG
; Garofalo A
; Nigro V
; Omodei D
; Lombardi A
; Zhang J
; Chambers I
; Simeone A
Stem Cell Reports
2017[Nov]; 9
(5
): 1642-1659
PMID29056334
show ga
Embryonic stem cells (ESCs) cultured in leukemia inhibitory factor (LIF) plus
fetal bovine serum (FBS) exhibit heterogeneity in the expression of naive and
primed transcription factors. This heterogeneity reflects the dynamic condition
of ESCs and their versatility to promptly respond to signaling effectors
promoting naive or primed pluripotency. Here, we report that ESCs lacking Nanog
or overexpressing Otx2 exhibit an early primed identity in LIF + FBS and fail to
convert into 2i-induced naive state. Conversely, Otx2-null ESCs possess naive
identity features in LIF + FBS similar to Nanog-overexpressing ESCs and convert
poorly into FGF-induced early primed state. When both Nanog and Otx2 are
inactivated, ESCs cultured in LIF + FBS exhibit primed identity and weakened
ability to convert into naive state. These data suggest that, through mutual
antagonism, NANOG and OTX2 specify the heterogeneous identity of ESCs cultured in
LIF + FBS and individually predispose them for optimal response to naive or
primed inducing factors.