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Related Experiment Video

Updated: Mar 23, 2026

Effect of Anti-c-fms Antibody on Osteoclast Formation and Proliferation of Osteoclast Precursor In Vitro
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Multiple myeloma-derived MMP-13 mediates osteoclast fusogenesis and osteolytic disease.

Jing Fu, Shirong Li, Rentian Feng

    The Journal of Clinical Investigation
    |April 5, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Matrix metalloproteinase-13 (MMP-13) from multiple myeloma cells drives bone destruction by enhancing osteoclast activity. Targeting MMP-13 offers a new strategy to treat bone disease in multiple myeloma patients.

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    Area of Science:

    • Oncology
    • Bone Biology
    • Biochemistry

    Background:

    • Multiple myeloma (MM) cells induce bone lesions through unknown osteoclastogenic factors.
    • Understanding these factors is crucial for treating MM-associated bone disease.

    Purpose of the Study:

    • To identify pro-osteoclastogenic agents secreted by MM cells.
    • To evaluate MMP-13 as a therapeutic target for MM bone disease.

    Main Methods:

    • Screening of human myeloma cells for osteoclastogenic factors.
    • Investigating MMP-13's role in osteoclast function and bone resorption.
    • Utilizing mouse xenograft models and patient cohorts for validation.

    Main Results:

    • Myeloma cells express high levels of MMP-13.
    • MMP-13 enhances osteoclast multinucleation and bone resorption via DC-STAMP, independent of proteolytic activity.
    • Silencing MMP-13 inhibited osteolytic lesions in vivo.
    • Elevated serum MMP-13 levels correlate with active bone disease in patients.

    Conclusions:

    • MMP-13 is a key mediator of osteolytic lesions in multiple myeloma.
    • Targeting MMP-13 protein, not just its enzymatic activity, is a potential therapeutic strategy for MM bone disease.