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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 ; 8
(5
): 1366-1378
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gab.com Text
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Promyelocytic Leukemia Protein Is an Essential Regulator of Stem Cell
Pluripotency and Somatic Cell Reprogramming
#MMPMID28392218
Hadjimichael C
; Chanoumidou K
; Nikolaou C
; Klonizakis A
; Theodosi GI
; Makatounakis T
; Papamatheakis J
; Kretsovali A
Stem Cell Reports
2017[May]; 8
(5
): 1366-1378
PMID28392218
show ga
Promyelocytic leukemia protein (PML), the main constituent of PML nuclear bodies,
regulates various physiological processes in different cell types. However,
little is known about its functions in embryonic stem cells (ESC). Here, we
report that PML contributes to ESC self-renewal maintenance by controlling
cell-cycle progression and sustaining the expression of crucial pluripotency
factors. Transcriptomic analysis and gain- or loss-of-function approaches showed
that PML-deficient ESC exhibit morphological, metabolic, and growth properties
distinct to naive and closer to the primed pluripotent state. During
differentiation of embryoid bodies, PML influences cell-fate decisions between
mesoderm and endoderm by controlling the expression of Tbx3. PML loss compromises
the reprogramming ability of embryonic fibroblasts to induced pluripotent stem
cells by inhibiting the transforming growth factor ? pathway at the very
early stages. Collectively, these results designate PML as a member of the
regulatory network for ESC naive pluripotency and somatic cell reprogramming.