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Updated: May 30, 2026

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation
Published on: March 15, 2018
[Myeloma bone disease and RANKL signaling]
1Department of Medicine and Bioregulatory Sciences, University of Tokushima Graduate School of Medicine, Japan.
Abstract:
Multiple myeloma develops and expands almost exclusively in the bone marrow, and generates devastating bone destruction. Myeloma cells produce a variety of cytokines including MIP-1 to stimulate bone resorption by enhancing RANKL expression, and suppress bone formation by inhibiting osteoblast differentiation, leading to bone destruction and rapid loss of bone. The emerging role of the RANKL/RANK signaling axis provide a molecular rationale for consideration of targeting RANKL/RANK in a bone disease in myeloma. Given formation of vicious cycle between bone destruction and tumor progression, inhibiting RANKL signaling may also contribute to the suppression of myeloma expansion.
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