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Investigating the Impact of Circulating MicroRNAs on Knee and Hip Osteoarthritis: Causal Links, Biological

Shanni Li1, Yihui Peng2, Yang Yu1

  • 1Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100010, China.

International Journal of Molecular Sciences
|January 11, 2025
PubMed

Insights

This study identifies key microRNAs (miRNAs) involved in osteoarthritis (OA) progression. Upregulated hsa-miR-1303 and downregulated hsa-miR-125 family miRNAs offer potential therapeutic targets for developing novel OA treatments.

Area of Science:

  • Genetics and Molecular Biology
  • Biomarkers and Therapeutics Development
  • Osteoarthritis Pathogenesis

Background:

  • Osteoarthritis (OA) is a global health challenge with limited treatment options, necessitating research into its molecular mechanisms.
  • MicroRNAs (miRNAs) are emerging as critical regulators in various diseases, including OA, impacting gene expression and cellular pathways.

Purpose of the Study:

  • To identify specific miRNAs associated with knee and hip osteoarthritis using genome-wide association studies (GWAS) and cis-miRNA expression quantitative trait loci (cis-miR-eQTL) data.
  • To elucidate the regulatory roles of identified miRNAs in OA pathogenesis and explore their potential as therapeutic targets.

Main Methods:

  • Utilized GWAS and cis-miR-eQTL datasets to identify miRNAs linked to knee and hip OA.
  • Analyzed the regulatory networks of key miRNAs, including interactions with target genes and competing endogenous RNAs (ceRNAs).
  • Performed drug interaction analysis to identify potential therapeutic agents targeting identified miRNA pathways.

Main Results:

  • Identified 16 miRNAs for knee OA and 21 for hip OA; hsa-miR-1303 was significantly upregulated in both, implicating it in OA progression.
  • Hsa-miR-1303 regulates genes in pathways like neurotrophin signaling and interacts with ceRNAs, affecting proteins SUMO2 and PARP1.
  • Downregulated hsa-miR-125a-5p and hsa-miR-125b-5p are linked to HIF-1 and JAK-STAT pathways, impacting apoptosis and STAT3, MCL1, TRAF6 proteins; 47 potential OA treatments identified.

Conclusions:

  • Hsa-miR-1303 and the hsa-miR-125 family play significant roles in the molecular mechanisms of knee and hip osteoarthritis.
  • These miRNAs, along with their regulatory targets and ceRNAs, represent promising biomarkers and therapeutic targets for novel OA treatments.
  • The study provides a foundation for developing miRNA-based therapeutic strategies to manage osteoarthritis effectively.
Keywords:
biological mechanismsdrug targetsmendelian randomizationmicroRNAsosteoarthritissignaling pathways

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