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How to build bone: Separate bone formation from bone destruction

Date:
January 5, 2010
Source:
Journal of Clinical Investigation
Summary:
Treatments for 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. New research has now identified one way to do this in mice.
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FULL STORY

Treatments for osteoporosis (a disease characterized by reduced bone density, which leads to an increased risk of fracture) 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. The research appears in the Journal of Clinical Investigation.

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.


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Journal Reference:

  1. Emma C. Walker, Narelle E. Mcgregor, Ingrid J. Poulton, Melissa Solano, Sueli Pompolo, Tania J. Fernandes, Matthew J. Constable, Geoff C. Nicholson, Jian-Guo Zhang, Nicos A. Nicola, Matthew T. Gillespie, T. John Martin, and Natalie A. Sims. Oncostatin M promotes bone formation independently of resorption when signaling through leukemia inhibitory factor receptor in mice. Journal of Clinical Investigation, 2010; DOI: 10.1172/JCI40568

Cite This Page:

Journal of Clinical Investigation. "How to build bone: Separate bone formation from bone destruction." ScienceDaily. ScienceDaily, 5 January 2010. <www.sciencedaily.com/releases/2010/01/100104181523.htm>.
Journal of Clinical Investigation. (2010, January 5). How to build bone: Separate bone formation from bone destruction. ScienceDaily. Retrieved May 5, 2015 from www.sciencedaily.com/releases/2010/01/100104181523.htm
Journal of Clinical Investigation. "How to build bone: Separate bone formation from bone destruction." ScienceDaily. www.sciencedaily.com/releases/2010/01/100104181523.htm (accessed May 5, 2015).

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