Planned Research
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
This study describes the authentication mechanism of fertilizing sperm during migration through the female reproductive tract. We have successfully identified a sperm ADAM3-interacting membrane protein localized on epithelial cells in the uterus and oviduct. Functional analysis of the membrane protein suggests a possible involvement in release of sperm from the epithelial cells. We also found that double-knockout mice lacking two sperm serine proteases, ACR and PRSS21, are subfertile, although the mutant epididymal sperm fail to undergo the acrosome reaction on the zona surface and to traverse the zona pellucida in vitro. Moreover, We have identified a novel proteasome subunit specifically present in sperm. The function of the mouse sperm proteasome may be distinguished from sea urchin and starfish proteasomes by functional diversification.
All 2013 2012 2011 2010 2009 Other
All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (20 results) Remarks (1 results)
Biol. Reprod
Volume: 88 Pages: 105, 1-8
10.1095/biolreprod.112.107425
J. Reprod. Dev
Volume: 58 Pages: 330-337
https://www.jstage.jst.go.jp/article/jrd/58/3/58_2011-006/_article
Volume: 86 Pages: 1-12
10.1095/biolreprod.110.089896
Dev. Biol
Volume: 359 Pages: 73-81
10.1016/j.ydbio.2011.08.021
Volume: 57 Pages: 256-261
https://www.jstage.jst.go.jp/article/jrd/57/2/57_10-138H/_article
Biochim. Biphys. Acta
Volume: 1804 Pages: 1272-1284
10.1016/j.bbapap.2010.02.004
Volume: 83 Pages: 359-369
10.1095/biolreprod.109.083089
Volume: 56 Pages: 140-144
https://www.jstage.jst.go.jp/article/jrd/56/1/56_09-152N/_article
Volume: 81 Pages: 939-947
10.1095/biolreprod.109.078816
http://www.acroman.org/