Separate Bone Formation from Bone Destruction to Build Bone

by Rajshri on  January 5, 2010 at 9:01 PM Research News
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 Separate Bone Formation from Bone Destruction to Build Bone
It is a well-known fact that treatments for the bone disease osteoporosis need to increase the amount and/or quality of bone.

As bone formation is tightly coupled to bone destruction, researchers looking to develop new approaches to build bone in individuals with osteoporosis need to identify ways to separate the two processes. Natalie Sims and colleagues, at St. Vincent's Institute, Melbourne, Australia, have now identified one way to do this in mice.

In the study, the molecule oncostatin M (OSM) was found to induce distinct functions in mice upon binding to two different cell surface proteins. When OSM bound OSMR it stimulated the production of cells that destroy bone. Consistent with this, mice lacking OSMR were found to have increased bone density. However, when OSM bound LIFR it blocked production of a protein that inhibits bone formation. Importantly, OSM acting via LIFR did not stimulate the production of cells that destroy bone. These data indicate the existence of a pathway by which bone formation can be stimulated independently of bone destruction.



Source: Eurekalert
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