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Osteolysis and cancer
David Goltzman
David Goltzman
Published May 15, 2001
Citation Information: J Clin Invest. 2001;107(10):1219-1220. https://doi.org/10.1172/JCI13073.
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Commentary

Osteolysis and cancer

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Abstract

Authors

David Goltzman

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Figure 1

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Schematic representation of tumor-cell induced osteolysis. A tumor cell ...
Schematic representation of tumor-cell induced osteolysis. A tumor cell may release soluble mediators such as hormones (e.g., PTHrP), eicosanoids, cytokines (e.g., IL-6), or growth factors (e.g., TGF-α) that act on an osteoblastic stromal cell. The stromal cell produces RANKL, which binds to its cognate receptor, RANK, expressed on osteoclast (Oc) precursors. In the presence of M-CSF, which acts on its receptor, c-fms, RANKL can enhance the formation of active osteoclasts that carry out bone resorption. Tumor cells have also been occasionally reported to directly release sRANKL, a soluble form of RANKL. Additionally, proteases can be produced by tumor cells and facilitate their invasion of nonmineralized tissue.

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