Molecular mechanism of resveratrol regulating pyroptosis to improve osteoarthritis through transcriptome sequencing...

Area of Science:

• Orthopedics and Molecular Biology
• Cell Death Mechanisms
• Pharmacology

Background:

• Osteoarthritis (OA) is a common orthopedic condition characterized by joint damage.
• Pyroptosis, a form of programmed cell death regulated by Gasdermin proteins, presents a potential therapeutic target for OA by modulating inflammatory cytokine expression.
• Resveratrol has shown promise in improving OA, but its underlying molecular mechanisms require elucidation.

Purpose of the Study:

• To identify pyroptosis-related proteins involved in OA pathogenesis.
• To investigate the therapeutic potential of resveratrol in modulating pyroptosis and inflammation in OA.
• To elucidate the molecular mechanisms by which resveratrol exerts its effects on OA.

Main Methods:

• Bioinformatic analysis was employed to identify differentially expressed pyroptosis proteins in OA.
• TCM database mining and molecular docking were used to identify potential resveratrol therapeutic targets for OA.
• Cell Counting Kit-8 (CCK-8), quantitative real-time PCR (Q-PCR), and immunofluorescence assays were utilized to assess resveratrol's effects on pyroptosis and inflammation markers.

Main Results:

• Fourteen differentially expressed pyroptosis proteins were identified in OA, with IL1β, IL6, and NLRP3 highlighted as significant hub genes.
• Resveratrol intervention, at an optimal concentration of 10 μmol/L, was found to restore the expression of pyroptosis and inflammation-related proteins and genes.
• Immunofluorescence assays confirmed that resveratrol modulates the key pyroptosis protein NLRP3.

Conclusions:

• Resveratrol demonstrates therapeutic potential in attenuating osteoarthritis.
• The mechanism involves the modulation of pyroptosis, apoptosis, and immunological processes.
• These findings suggest a novel therapeutic strategy for OA treatment targeting pyroptosis pathways.