Research Project
Grant-in-Aid for Scientific Research (A)
Using mouse spermatogenesis, his study investigated the “potential stem cells” that largely differentiate without self-renewal under a normal condition but revert back to self-renewal during regeneration after tissue damage. The discoveries made in this study include: 1) In response to retinoic acid (RA), a differentiation-inducing signal, while GFRα1+ spermatogonia (cells supporting the steady state) remain undifferentiated, while Ngn3+ cells (those acting as potential stem cells) undergo irreversible differentiation and lose the stem cell potential. 2) This differential RA responsiveness is caused by the differential expression of RARg (a RA receptor gene) only in the Ngn3+ cells. These findings suggest a novel regulatory mechanism for the robust stem cell systems.
All 2016 2015 2014 2013 2012 Other
All Int'l Joint Research (1 results) Journal Article (5 results) (of which Peer Reviewed: 5 results, Open Access: 3 results) Presentation (74 results) (of which Int'l Joint Research: 11 results, Invited: 43 results) Remarks (3 results)
Development
Volume: 142 Pages: 1582-1592
10.1242/dev.118695
WIREs Developmental Biology
Volume: 5 Issue: 1 Pages: 119-131
10.1002/wdev.204
Cell Stem Cell
Volume: 14 Issue: 5 Pages: 658-672
10.1016/j.stem.2014.01.019
http://www.nibb.ac.jp/pressroom/news/2014/05/02.html
Volume: 140 Issue: 17 Pages: 3565-3576
10.1242/dev.094045
Proc. Natl. Acad. Sci. USA
Volume: 109 Issue: 42 Pages: 16934-16938
10.1073/pnas.1211845109
http://www.nibb.ac.jp/germcell/