Osteoclast-associated receptor

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A61K 38/18 (2006.01) A61K 39/395 (2006.01) A61P 19/08 (2006.01) A61P 19/10 (2006.01) C07K 14/705 (2006.01) C07K 14/71 (2006.01) C07K 16/28 (2006.01) C07K 19/00 (2006.01) C12N 15/62 (2006.01) G01N 33/566 (2006.01)

Patent

CA 2421155

This invention relates to methods and compositions that modulate the activity of cells, such as osteoclast cells, involved in the growth, development, repair, degradation and homeostasis of bone tissue. The compositions may therefore by used to modulate such processes and to treat bone growth related disorders (for example, osteoporosis and osteopetrosis). In particular, the invention provides a novel polypeptide, referred to as the Osteoclast Associated Receptor or OSCAR, that is specifically expressed by oteoclast cells and modulates osteoclast cell activity. OSCAR nucleic acids (including vectors), fusion polypeptides and OSCAR specific antibodies are also provided, as well as diagnostic and screening assays using such nucleic acids, polypeptide and antibodies.

La présente invention concerne des méthodes et des compositions destinées à la modulation de l'activité des cellules, telles que les cellules ostéoclastiques, impliquées dans la croissance, le développement, la réparation, la dégradation et l'homéostasie du tissu osseux. Par conséquent, ces compositions peuvent être utilisées pour moduler ces processus et pour traiter des troubles associés à la croissance osseuse (l'ostéoporose et l'ostéopétrose, par exemple). Plus particulièrement, l'invention concerne un nouveau polypeptide, dit Osteoclast Associated Receptor ou OSCAR, exprimé de façon spécifique par les cellules ostéoclastiques et modulant l'activité des cellules ostéoclastiques. L'invention concerne également des acides nucléiques de OSCAR (y compris des vecteurs), des polypeptides de fusion et des anticorps spécifiques de OSCAR, ainsi que des méthodes de diagnostic et de criblage utilisant ces acides nucléiques, ce polypeptide et ces anticorps.

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