Research Project
Grant-in-Aid for Scientific Research (C)
Human embryonic stem cells (hESCs) and induced pluripotent cells have the potential to provide an unlimited source of tissues for regenerative medicine. For this purpose, development of defined/xeno-free culture systems under feeder-free conditions is essential for the expansion of hESCs. Most defined/xeno-free media for the culture of hESCs contain basic fibroblast growth factor (bFGF). Therefore, bFGF is thought to have an almost essential role for the expansion of hESCs in an undifferentiated state. Here, we report identification of small molecules, some of which were neurotransmitter antagonists (trimipramine and ethopropazine), which promote long-term hESC self-renewal without bFGF in the medium. The hESCs maintained high expression levels of pluripotency markers, had a normal karyotype after 20 passages, and could differentiate into all three germ layers.
All 2013 2012 2011 2010 Other
All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (21 results) (of which Invited: 1 results) Book (4 results) Remarks (4 results)
Biochem. Biophys. Res. Commun
Volume: 434 Issue: 4 Pages: 710-716
10.1016/j.bbrc.2013.03.061
Nature Communications
Volume: 13 Issue: 1 Pages: 1236-1236
10.1038/ncomms2243
Mol Ther
Volume: 6 Issue: 2 Pages: 424-431
10.1038/mt.2011.266
Genes to Cells
Volume: 15 (12) Issue: 12 Pages: 1216-1227
10.1111/j.1365-2443.2010.01455.x
Volume: 15 (5) Pages: 455-469
Nucleic Acids Res
Volume: 38 (7)
Nucleic Acids Res.
Volume: 38
Volume: 15 Pages: 455-469
Volume: 15 Pages: 1216-1227
http://www.icems.kyoto-u.ac.jp/j/pr/2012/12/05-nr.html
http://www.kyoto-u.ac.jp/ja/news_data/h/h1/news6/2012/121205_1.htm