Female human iPSCs retain an inactive X chromosome.
Female human iPSCs retain an inactive X chromosome.
复制标题
DOI:
10.1016/j.stem.2010.06.024
复制
发表时间:
2010-09-03
期刊:
影响因子:
23.9
通讯作者:
Plath K
中科院分区:
文献类型:
--
作者:
Tchieu J;Kuoy E;Chin MH;Trinh H;Patterson M;Sherman SP;Aimiuwu O;Lindgren A;Hakimian S;Zack JA;Clark AT;Pyle AD;Lowry WE;Plath K
Generating induced pluripotent stem cells (iPSCs) requires massive epigenome reorganization. It is unclear whether reprogramming of female human cells reactivates the inactive X chromosome (Xi), like in mouse. Here we establish that human (h)iPSCs derived from several female fibroblasts under standard culture conditions carry an Xi. Despite the lack of reactivation, the Xi undergoes defined chromatin changes, and expansion of hiPSCs can lead to partial loss of XIST RNA. These results indicate that hiPSCs are epigenetically dynamic and do not display a pristine state of X-inactivation with two active X’s as found in some female human embryonic stem cells. Furthermore, while fibroblasts are mosaic for the Xi, hiPSCs are clonal for the Xi. This non-random pattern of X chromosome inactivation in female hiPSCs, which is maintained upon differentiation, has critical implications for clinical applications and disease modeling, and could be exploited for a unique form of gene therapy for X-linked diseases.
登录
查看更多内容
影响因子:
9.8
作者:
Lin, Hong;Gupta, Vibhor;Vermilyea, Matthew D;Falciani, Francesco;Lee, Jeannie T;O'Neill, Laura P;Turner, Bryan M
通讯作者:
Turner, Bryan M
影响因子:
64.5
作者:
Park IH;Arora N;Huo H;Maherali N;Ahfeldt T;Shimamura A;Lensch MW;Cowan C;Hochedlinger K;Daley GQ
通讯作者:
Daley GQ
影响因子:
5.2
作者:
Hoffman, LM;Hall, L;Carpenter, MK
通讯作者:
Carpenter, MK
影响因子:
23.9
作者:
Nichols, Jennifer;Smith, Austin
通讯作者:
Smith, Austin
影响因子:
11.8
作者:
Silva, J;Mak, W;Brockdorff, N
通讯作者:
Brockdorff, N