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G Protein-Coupled Receptors in Osteoarthritis: A Novel Perspective on Pathogenesis and Treatment

Ze-Qin Wen1,2, Di Liu1, Yi Zhang1,3

  • 1Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China.

Frontiers in Cell and Developmental Biology
|November 8, 2021
PubMed

Insights

G protein-coupled receptors (GPCRs) are key in osteoarthritis (OA) pathogenesis. Targeting GPCRs offers a promising therapeutic strategy to modify OA progression and improve cartilage health.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pharmacology

Background:

  • G protein-coupled receptors (GPCRs) are diverse transmembrane proteins mediating cellular responses.
  • GPCRs are implicated in osteoarthritis (OA) pathogenesis, influencing cartilage degradation, inflammation, and bone remodeling.
  • Current OA treatments are largely symptomatic, lacking disease-modifying capabilities.

Purpose of the Study:

  • To comprehensively review the structure, biofunctions, and roles of GPCRs in OA pathogenesis.
  • To explore GPCRs as a therapeutic target for novel OA treatments.
  • To provide a foundation for developing new OA therapeutics targeting GPCRs.

Main Methods:

  • Literature review of existing studies on GPCRs and osteoarthritis.
  • Analysis of GPCRs' involvement in OA-related biological processes.
  • Evaluation of GPCR-targeting strategies for OA treatment.

Main Results:

  • GPCRs play critical roles in cartilage matrix degradation, synovitis, subchondral bone remodeling, and osteophyte formation in OA.
  • Targeting GPCRs can inhibit OA-related degradation and inflammation while promoting cartilage synthesis.
  • GPCR-targeted therapies show potential for disease modification in OA.

Conclusions:

  • GPCRs represent a significant therapeutic target for osteoarthritis.
  • Modulating GPCRs offers a novel strategy to address OA pathogenesis and progression.
  • Further research is needed as many GPCR-targeted strategies are in early pre-clinical stages.
Keywords:
G protein-coupled receptorcartilage matrix degradationosteoarthritispathogenesissynovitistreatment

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