Expression and localization of the cell adhesion molecule SgIGSF during regeneration of the olfactory epithelium in mice

フォーマット:

論文

責任表示:

若山, 友彦 ; 塚谷, 才明 ; 三輪, 髙喜 ; 古川, 仭 ; 井関, 尚一

言語:

英語

出版情報:

日本組織細胞化学会, 2007-01-01

著者名:

• 若山, 友彦
• 塚谷, 才明
• 三輪, 髙喜
• 古川, 仭
• 井関, 尚一

掲載情報:

Acta Histochemica et Cytochemica

ISSN:

0044-5991      

巻:

40

通号:

2

開始ページ:

43

終了ページ:

52

バージョン:

publisher

概要:

金沢大学大学院医学系研究科がん細胞学<br />Spermatogenic immunoglobulin superfamily (SgIGSF) is a cell adhesion molecule originally discovered in mouse testis. SgIGSF is expressed not only in spermatogenic cells but also in lung and liver epithelial cel … ls and in neurons and glia of the central and peripheral nervous systems. In the present study, we examined the expression and localization of SgIGSF in mouse olfactory epithelium before and after transection of the olfactory nerves, by RT-PCR, Western blotting and immunohistochemistry. In normal olfactory mucosa, SgIGSF showed 100 kDa in molecular weight, which was identical with that in the lung but different from that in the brain. SgIGSF was expressed on the membrane of all olfactory, sustentacular and basal cells, but more abundantly in the apical portions of the olfactory epithelium where the dendrites of olfactory cells are in contact with sustentacular cells. After olfactory nerve transection, mature olfactory cells disappeared in 4 days but were regenerated around 7-15 days by proliferation and differentiation of basal cells into mature olfactory cells through the step of immature olfactory cells. During this period, both the mRNA and protein for SgIGSF showed a transient increase, with peak levels at 7 days and 11 days, respectively, after the transection. Immunohistochemistry showed that the enriched immunoreactivity for SgIGSF at 7-11 days was localized primarily to the membrane of immature olfactory cells. These results suggested that, during regeneration of the olfactory epithelium, the adhesion molecule SgIGSF plays physiological roles in differentiation, migration, and maturation of immature olfactory cells. (C) 2007 The Japan Society of Histochemistry and Cytochemistry. 続きを見る

URL:

http://hdl.handle.net/2297/6772