Confirmation of inhibitingTLR4/MyD88/NF-κB Signalling Pathway by Duhuo Jisheng Decoction on Osteoarthritis: A Network

Linglong Liu1, Limei Xu1,2, Shengjie Wang3

  • 1College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.

Frontiers in Pharmacology
|February 10, 2022
PubMed

Insights

Duhuo Jisheng Decoction (DHJSD) effectively treats osteoarthritis (OA) by targeting the Toll-like receptor 4/MyD88/NF-κB signalling pathway. This pathway is crucial for DHJSD

Area of Science:

  • Pharmacology
  • Molecular Biology
  • Traditional Chinese Medicine

Background:

  • Osteoarthritis (OA) is a degenerative joint disease with limited treatment options.
  • Duhuo Jisheng Decoction (DHJSD) is a traditional Chinese medicine used for OA.
  • The precise molecular mechanisms of DHJSD in OA remain unclear.

Purpose of the Study:

  • To investigate the role of the Toll-like receptor 4/MyD88/NF-κB (TLR4/MyD88/NF-κB) signalling pathway in DHJSD's OA treatment.
  • To elucidate the molecular targets and pathways involved in DHJSD's therapeutic effects on OA.

Main Methods:

  • Network pharmacology approach (NPA) to identify key pathways and genes.
  • Experimental validation using western blot and quantitative polymerase chain reaction (qPCR).
  • Investigation of microRNA (miRNA) changes (miR-146a-5p and miR-34a-5p) in cellular OA models.

Main Results:

  • NPA identified the TLR4/MyD88/NF-κB pathway as critical for DHJSD's OA treatment.
  • Western blot and qPCR confirmed the pathway's involvement.
  • DHJSD administration restored miR-146a-5p and miR-34a-5p levels, contributing to OA therapy.
  • miRNA-regulated pathways enriched the toll-like receptor and NF-κB signalling pathways.

Conclusions:

  • The TLR4/MyD88/NF-κB signalling pathway is essential for the anti-inflammatory effects of DHJSD in OA.
  • DHJSD's efficacy in OA treatment is mediated through this inflammatory pathway and specific miRNAs.
  • This study provides a foundation for understanding DHJSD's mechanism of action in OA.