RRC ID 50087
著者 Yamamoto T, Takenaka C, Yoda Y, Oshima Y, Kagawa K, Miyajima H, Sasaki T, Kawamata S.
タイトル Differentiation potential of Pluripotent Stem Cells correlates to the level of CHD7.
ジャーナル Sci Rep
Abstract Embryonic Stem Cells (ESC) possesses two distinct features; self-renewal and the potential to differentiate. Here we show the differentiation potential and growth rate of ESC correlates positively with the expression level of the gene encoding chromodomain helicase DNA binding protein 7 (CHD7). When ESCs are maintained in feeder-free conditions and single cell seeding, ESC KhES-1 having 4520 copies or more of CHD7 in 5 ng total RNA show differentiation potential, but this is lost when the CHD7 copy number is reduced in KhES-1 to less than 696 by alternative culture conditions. Introduction of siCHD7 reduced differentiation potential and growth rate of KhES-1. Interestingly, KhES-1 underwent spontaneous differentiation when mCHD7 was introduced and we could not obtain CHD7-overexpressing ESC in culture. These data suggest that CHD7 drives differentiation, and there is a lower limit for CHD7 to initiate differentiation and an upper limit for CHD7 if maintained in undifferentiated state, and such upper limit varies depending on culture condition. As CHD7 drives cell growth, ESC with the highest permissible CHD7 level in the given culture become dominant in a couple of passages. Thus, we can select differentiation resistance-free cell clones by optimizing the culture system using CHD7 as an index.
巻・号 8(1)
ページ 241
公開日 2018-1-10
DOI 10.1038/s41598-017-18439-y
PII 10.1038/s41598-017-18439-y
PMID 29321579
PMC PMC5762636
MeSH Cell Culture Techniques Cell Differentiation / genetics* Cell Line Cell Proliferation Cells, Cultured DNA Helicases / genetics* DNA Helicases / metabolism DNA-Binding Proteins / genetics* DNA-Binding Proteins / metabolism Embryonic Stem Cells / cytology Embryonic Stem Cells / metabolism Gene Expression Regulation, Developmental* Humans Pluripotent Stem Cells / cytology* Pluripotent Stem Cells / metabolism* Protein Transport RNA, Messenger / genetics RNA, Messenger / metabolism RNA, Small Interfering / genetics
IF 3.998
引用数 8
リソース情報
ヒト・動物細胞 KhES-1(HES0001) 201B7(HPS0063)