Resveratrol eliminates cancer stem cells of osteosarcoma by STAT3 pathway inhibition

Lihua Peng1, Dianming Jiang1

  • 1Department of Orthopedics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.

Plos One
|October 26, 2018
PubMed

Insights

Resveratrol effectively targets osteosarcoma stem cells by inhibiting proliferation and tumorigenesis. This natural compound shows promise for osteosarcoma treatment by blocking the JAK2/STAT3 signaling pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Resveratrol exhibits anti-tumor properties across various cancers.
  • The specific impact of resveratrol on osteosarcoma stem cells and its mechanisms are not fully understood.

Purpose of the Study:

  • To investigate the effects of resveratrol on osteosarcoma stem cells.
  • To elucidate the molecular pathways involved in resveratrol's action against osteosarcoma stem cells.

Main Methods:

  • Assessed resveratrol's impact on osteosarcoma cell viability, self-renewal, and tumorigenesis.
  • Investigated the role of cytokines and the JAK2/STAT3 signaling pathway.
  • Examined the effect of exogenous STAT3 activation on resveratrol's efficacy.

Main Results:

  • Resveratrol significantly inhibited osteosarcoma cell viability, self-renewal, and tumorigenesis.
  • Resveratrol demonstrated no significant inhibitory effect on normal osteoblast cells.
  • Resveratrol treatment reduced cytokine synthesis and inhibited JAK2/STAT3 signaling, correlating with decreased CD133 expression.
  • Restoring STAT3 activity diminished resveratrol's cancer stem cell-eliminating effects.

Conclusions:

  • Resveratrol effectively inhibits osteosarcoma cell proliferation and tumorigenesis.
  • The anti-cancer effects are linked to the inhibition of cytokine-mediated JAK2/STAT3 signaling.
  • Resveratrol presents potential as a therapeutic agent for managing osteosarcoma.

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