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Updated: Feb 3, 2026

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma
Published on: October 14, 2016
Resveratrol eliminates cancer stem cells of osteosarcoma by STAT3 pathway inhibition
1Department of Orthopedics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
Abstract:
Resveratrol shows potent anti-tumor therapeutic properties in various tumors. However, the exact effect of resveratrol on osteosarcoma cells, especially cancer stem cells, remains unclear. In this study, we examined the effect of resveratrol on osteosarcoma stem cells and explored the underlying molecular mechanisms. Resveratrol inhibited cell viability, self-renewal ability and tumorigenesis of osteosarcoma cells, whereas showed no significant inhibition effects to normal osteoblast cells. Mechanically, resveratrol treatment decreased cytokines synthesis and inhibited JAK2/STAT3 signaling, which was consistent with the decline of cancer stem cells marker, CD133. Exogenous STAT3 activation attenuated the cancer stem cell elimination effects of resveratrol treatment. Our results demonstrated that resveratrol inhibited osteosarcoma cell proliferation and tumorigenesis ability, which was correlated with cytokines inhibition related JAK2/STAT3 signaling blockage. Resveratrol may be a promising therapeutic agent for osteosarcoma management.
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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