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2017 ; 6
(ä): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
CHARGE syndrome modeling using patient-iPSCs reveals defective migration of
neural crest cells harboring CHD7 mutations
#MMPMID29179815
Okuno H
; Renault Mihara F
; Ohta S
; Fukuda K
; Kurosawa K
; Akamatsu W
; Sanosaka T
; Kohyama J
; Hayashi K
; Nakajima K
; Takahashi T
; Wysocka J
; Kosaki K
; Okano H
Elife
2017[Nov]; 6
(ä): ä PMID29179815
show ga
CHARGE syndrome is caused by heterozygous mutations in the chromatin remodeler,
CHD7, and is characterized by a set of malformations that, on clinical grounds,
were historically postulated to arise from defects in neural crest formation
during embryogenesis. To better delineate neural crest defects in CHARGE
syndrome, we generated induced pluripotent stem cells (iPSCs) from two patients
with typical syndrome manifestations, and characterized neural crest cells
differentiated in vitro from these iPSCs (iPSC-NCCs). We found that expression of
genes associated with cell migration was altered in CHARGE iPSC-NCCs compared to
control iPSC-NCCs. Consistently, CHARGE iPSC-NCCs showed defective delamination,
migration and motility in vitro, and their transplantation in ovo revealed
overall defective migratory activity in the chick embryo. These results support
the historical inference that CHARGE syndrome patients exhibit defects in neural
crest migration, and provide the first successful application of patient-derived
iPSCs in modeling craniofacial disorders.