| Literature DB >> 1385221 |
S Tanaka1, N Takahashi, N Udagawa, T Sasaki, Y Fukui, T Kurokawa, T Suda.
Abstract
Expression of p60c-src, the normal cellular counterpart of the transforming protein of Rous sarcoma virus (RSV), p60v-src, was examined in mouse and rat authentic osteoclasts and mouse osteoclast-like multinucleated cells (MNCs) formed in vitro. In co-cultures of mouse osteoblastic cells and spleen cells, the expression of p60c-src strikingly increased on day 5 in parallel with the appearance of MNCs in the presence of 1 alpha,25-dihydroxyvitamin D3 (1 alpha,25(OH)2D3). Immunohistochemical examination confirmed the high level expression of p60c-src in both mouse authentic osteoclasts and MNCs. Electron microscopic examination revealed that p60c-src was primarily localized on ruffled border membranes and vacuoles, but not on the clear zone in rat authentic osteoclasts. These results suggest that p60c-src is important in osteoclastic bone resorption.Entities:
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Year: 1992 PMID: 1385221 DOI: 10.1016/0014-5793(92)81190-w
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124