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Updated: May 13, 2026

Dual Effects of Melanoma Cell-derived Factors on Bone Marrow Adipocytes Differentiation
07:00

Dual Effects of Melanoma Cell-derived Factors on Bone Marrow Adipocytes Differentiation

Published on: August 23, 2018

Differential expression and tumor necrosis factor-mediated regulation of TNFRSF11b/osteoprotegerin production by

Janine L Oliver1, Matthew P Alexander, Allison G Norrod

  • 1Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA, USA.

Pigment Cell & Melanoma Research
|March 16, 2013
PubMed

Insights

Metastatic melanomas produce osteoprotegerin (OPG), a factor linked to aggressive cancer. This production is regulated by tumor necrosis factor-alpha (TNF-α) signaling via TNF receptor 1 (TNFR1), offering a new therapeutic target.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Tumors evade immune responses via secreted factors and decoy receptors.
  • Osteoprotegerin (OPG), a TNF receptor superfamily member, regulates bone remodeling and T cell apoptosis.
  • OPG production in cancers correlates with aggressive phenotypes and bone metastasis.

Purpose of the Study:

  • To investigate OPG production in human metastatic melanoma.
  • To elucidate the regulatory mechanism of OPG production in melanoma.
  • To identify potential therapeutic targets for regulating OPG in melanoma.

Main Methods:

  • Analysis of OPG expression in human metastatic melanoma samples.
  • Investigation of the role of tumor necrosis factor-alpha (TNF-α) and TNF receptor 1 (TNFR1) signaling.
  • Assessment of OPG production mechanisms.

Main Results:

  • A significant proportion of human metastatic melanomas constitutively produce OPG.
  • Melanoma OPG production is regulated by membrane-bound TNF-α signaling through TNFR1.
  • This pathway represents a novel mechanism controlling OPG in melanoma.

Conclusions:

  • Human metastatic melanomas produce OPG via a TNF-α/TNFR1-dependent mechanism.
  • This finding establishes a specific regulatory pathway for OPG in melanoma.
  • The TNF-α/TNFR1 pathway is a potential therapeutic target for managing OPG in metastatic melanoma.

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