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Expression and correlation of matrix metalloproteinase-7 and interleukin-15 in human osteoarthritis

Yulei Tao1, Xianxing Qiu2, Changbo Xu3

  • 1Department of Orthopaedics, The First Clinical College of Shanxi Medical University Taiyuan, Shanxi Province, China.

International Journal of Clinical and Experimental Pathology
|October 15, 2015
PubMed
Abstract

Insights

Matrix metalloproteinase (MMP)-7 and interleukin (IL)-15 are elevated in osteoarthritis (OA) patients. These molecules show a positive correlation, suggesting their role in OA pathogenesis.

Area of Science:

  • Biochemistry
  • Immunology
  • Orthopedics

Background:

  • Osteoarthritis (OA) is a degenerative joint disease.
  • Matrix metalloproteinase-7 (MMP-7) and interleukin-15 (IL-15) are implicated in tissue remodeling and inflammation.

Purpose of the Study:

  • To investigate the expression levels of MMP-7 and IL-15 in human OA.
  • To determine the correlation between MMP-7 and IL-15 in OA pathogenesis.

Main Methods:

  • Collected articular cartilage and serum from 30 OA patients and 30 controls.
  • Quantified protein and mRNA expression of MMP-7 and IL-15 using immunohistochemistry and in situ hybridization.
  • Measured serum levels of MMP-7 and IL-15 via ELISA and analyzed correlations using Pearson analysis.

Main Results:

  • Significantly higher protein, mRNA, and serum levels of MMP-7 and IL-15 were observed in OA patients compared to controls.
  • Strong positive correlations were found between articular and serum levels of MMP-7 and IL-15.
  • A significant positive correlation was also identified between serum IL-15 and serum MMP-7 levels.

Conclusions:

  • MMP-7 and IL-15 expression is upregulated in osteoarthritis.
  • These findings suggest MMP-7 and IL-15 play critical roles in OA development.
  • A positive correlation exists between IL-15 and MMP-7 in OA patients.
Keywords:
Matrix metalloproteinase-7interleukin-15osteoarthritis

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