Resveratrol exerts dosage and duration dependent effect on human mesenchymal stem cell development

Area of Science:

• Stem cell biology
• Pharmacology
• Biochemistry

Background:

• Resveratrol shows potential anticancer and life-extending properties.
• Conflicting effects observed at different concentrations.
• Lack of studies on dose-dependent effects on the same cell type.

Purpose of the Study:

• To investigate resveratrol's impact on human mesenchymal stem cell (hMSC) self-renewal and differentiation.
• To analyze effects across a wide concentration range (0.1–10 µM) and exposure durations.

Main Methods:

• Treatment of hMSCs with resveratrol at varying concentrations (0.1–10 µM).
• Assessment of cell self-renewal, senescence, cell cycle, and differentiation (osteogenic and adipogenic).
• Evaluation of both short-term and long-term exposure effects.

Main Results:

• 0.1 µM resveratrol inhibited senescence, promoting self-renewal.
• ≥5 µM resveratrol increased senescence and inhibited self-renewal.
• Osteogenic differentiation was dose-dependently promoted; adipogenic differentiation showed time-dependent effects.
• High concentrations offset differentiation benefits due to inhibited self-renewal.

Conclusions:

• Resveratrol's optimal concentration for stem cell development is 0.1 µM.
• Dosage-dependent effects necessitate caution for resveratrol's use as a therapeutic or supplement.
• Understanding concentration-specific impacts is crucial for resveratrol's application in stem cell research and therapy.