Human embryonic stem cells （hESCs） can self-renew indefinitely and differentiate into all cell types in the human body. Therefore, they are valuable in regenerative medicine, human developmental biology and drug dis...Human embryonic stem cells （hESCs） can self-renew indefinitely and differentiate into all cell types in the human body. Therefore, they are valuable in regenerative medicine, human developmental biology and drug discovery. A number of hESC lines have been derived from the Chinese population, but limited of them are available for research purposes. Here we report the derivation and characterization of two hESC lines derived from human blastocysts of Chinese origin. These hESCs express alkaline phosphatase and hESC-specific markers, including Oct4, Nanog, SSEA-3, SSEA-4, TRA- 1-60 and TRA-1-81. They also have high levels of telomerase activity and normal karyotypes. These ceils can form embryoid body in vitro and can be differentiated into all three germ layers in vivo by teratoma formation. The newly established hESCs will be distributed for research purposes. The availability of hESC lines from the Chinese population will facilitate studies on the differences in hESCs from different ethnic groups.展开更多
基金This work was partially supported by grants from the National Key Basic Research and Development Program of China(Nos.2007CB948003,2009CB940900,2009CB941000, 2009CB941100,2006CB943901,2007CB947902 and 2011 CB965101)the National Natural Science Foundation of China (Nos.30621091 and 31025016)+3 种基金the Chinese Academy of Sciences Knowledge Creation Program(No.KSCX1-YW-R- 54,KSCX1-YW-R-46)the Shanghai Science & Technology Developmental Foundation(No.08DJ1400500)the National High Technology Research and Development Program(863 program) of China(No.2010AA100504)the Shanghai Institutes for Biological Sciences(No.2007KIP401)
文摘Human embryonic stem cells （hESCs） can self-renew indefinitely and differentiate into all cell types in the human body. Therefore, they are valuable in regenerative medicine, human developmental biology and drug discovery. A number of hESC lines have been derived from the Chinese population, but limited of them are available for research purposes. Here we report the derivation and characterization of two hESC lines derived from human blastocysts of Chinese origin. These hESCs express alkaline phosphatase and hESC-specific markers, including Oct4, Nanog, SSEA-3, SSEA-4, TRA- 1-60 and TRA-1-81. They also have high levels of telomerase activity and normal karyotypes. These ceils can form embryoid body in vitro and can be differentiated into all three germ layers in vivo by teratoma formation. The newly established hESCs will be distributed for research purposes. The availability of hESC lines from the Chinese population will facilitate studies on the differences in hESCs from different ethnic groups.
