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Chinese Archives of General Surgery(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (05): 338-343. doi: 10.3877/cma.j.issn.1674-0793.2024.05.005

• Original Article • Previous Articles    

Expression of matrix metalloproteinases and their tissue inhibitors in the vein wall following superficial venous thrombosis

Xingyue Li1, Wei Dong2, Yongbo Xu3, Wenfa Zhang1, Xiaoxuan Hu4, Yuxu Zhong4, Haibo Chu1,()   

  1. 1. Department of General Surgery, Affiliated Hospital of Weifang Medical College, Weifang 261035, China
    2. Department of General Surgery, Jiaozhou Branch of Shanghai East Hospital, Tongji University, Qingdao 266300, China
    3. Department of General Surgery, the 80th Group Army Hospital of People’s Liberation Army, Weifang 261200, China
    4. State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Beijing 100850, China
  • Received:2024-04-12 Online:2024-10-01 Published:2024-10-16
  • Contact: Haibo Chu

Abstract:

Objective

To investigate the changes in expression of matrix metalloproteinases (MMPs) and the tissue inhibitor of metalloproteinases (TIMPs) from superficial venous thrombosis (SVT), varicose great saphenous veins (VGSVs), and great saphenous veins (GSVs).

Methods

In the venous walls of the three groups, the expression of MMP-2, MMP-9, TIMP-1, and TIMP-2 proteins, protein-positive expression ratios, mRNA expression, and protein expression were determined by immunohistochemistry, polymerase chain reaction, and Western blotting.

Results

The MMP-2, MMP-9, TIMP-1, and TIMP-2 protein-positive expression ratios, mRNA and protein expression in the SVT group were significantly higher than those in the VGSVs and the GSVs groups (P<0.05). The MMP-2/TIMP-2 ratios in the SVT and the VGSVs groups were significantly lower than those in the GSVs group (P<0.05), respectively. The MMP-2/TIMP-2 and MMP-9/TIMP-1 ratios in the SVT group were significantly lower than those in the VGSVs and the GSVs groups (P<0.05), respectively.

Conclusions

Disequilibrium of MMPs and TIMPs in SVT wall occurs due to underlying high hydrostatic pressure and inflammation. These results suggested that MMPs and TIMPs participate in the process of venous wall remodeling.

Key words: Superficial venous thrombosis, Saphenous vein, Matrix metalloproteinases, Tissue inhibitor of metalloproteinases

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