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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Colucci, S. Comoglio, P. M. Galimi, F. Zambonin, G. Zallone, A. Z. Cottone, E. Grano, M. |
| Description | Author Affiliation: Grano M ( Institute of Human Anatomy, University of Bari Medical School, Italy.); |
| Abstract | Hepatocyte growth factor (HGF), also known as scatter factor, is a powerful motogen, mitogen, and morphogen produced by cells of mesodermal origin, acting on epithelial and endothelial cells. Its receptor is the tyrosine kinase encoded by the c-MET protooncogene. We show that the HGF receptor is expressed by human primary osteoclasts, by osteoclast-like cell lines, and by osteoblasts. In both cell lineages, HGF stimulation triggers the receptor kinase activity and autophosphorylation. In osteoclasts, HGF receptor activation is followed by increase in intracellular Ca2+ concentration and by activation of the pp60c-Src kinase. HGF induces changes in osteoclast shape and stimulates chemotactic migration and DNA replication. Osteoblasts respond to HGF by entering the cell cycle, as indicated by stimulation of DNA synthesis. Interestingly, osteoclasts were found to synthesize and secrete biologically active HGF. These data strongly suggest the possibility of an autocrine regulation of the osteoclast by HGF and a paracrine regulation of the osteoblast by the HGF produced by the osteoclast. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 15 |
| Volume Number | 93 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1996-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Hepatocyte Growth Factor Pharmacology Osteoblasts Physiology Osteoclasts Receptor Protein-Tyrosine Kinases Bone Neoplasms Calcium Metabolism Cell Communication Cell Movement Drug Effects Cells, Cultured Coculture Techniques DNA Replication Enzyme Activation Giant Cell Tumors Kinetics Cytology Proto-Oncogene Proteins C-met Proto-Oncogene Proteins Pp60(c-src) Biosynthesis Time Factors Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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