Association study between matrix metalloproteinase-3 gene (MMP3) polymorphisms and ankylosing spondylitis

Yong Zhu1, Shunan Li2, Zhi Huang1

  • 1The Second Affiliated Hospital of Inner, Mongolia Medical University, Hohhot, China.

Abstract

Insights

The matrix metalloproteinase-3 (MMP3) rs522616 gene variant increases the risk of developing ankylosing spondylitis (AS). This MMP3 polymorphism may serve as a diagnostic biomarker for AS.

Area of Science:

  • Genetics
  • Immunology
  • Rheumatology

Background:

  • Ankylosing spondylitis (AS) is a prevalent axial skeleton inflammatory arthritis.
  • The role of matrix metalloproteinase-3 (MMP3) single nucleotide polymorphisms (SNPs) in AS development requires further investigation, particularly in Chinese populations.

Purpose of the Study:

  • To investigate the association between MMP3 gene polymorphisms and ankylosing spondylitis susceptibility in a Chinese cohort.
  • To explore the potential of MMP3 as a diagnostic biomarker for AS.

Main Methods:

  • A case-control study involving 362 AS patients and 362 healthy controls.
  • Genotyping of five MMP3 SNPs using Agena MassARRAY.
  • Statistical analysis including Chi-squared tests and genetic models to assess genotype-AS associations.

Main Results:

  • The MMP3 rs522616 polymorphism was significantly associated with AS risk.
  • Specifically, rs522616 CT genotypes showed a 1.44-fold increased risk (codominant model, p=0.008).
  • CC genotypes demonstrated a reduced AS risk (recessive model, OR=0.64, p=0.040).

Conclusions:

  • MMP3 rs522616 polymorphism is linked to ankylosing spondylitis susceptibility.
  • MMP3 may represent a potential diagnostic biomarker for AS.
  • Further validation in larger, diverse cohorts is recommended.

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