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Updated: May 4, 2026
Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
Published on: September 15, 2023
Matrix metalloproteinase 2 (MMP-2) and their tissue inhibitor 2 (TIMP-2) in gastric cancer patients
Background:
Matrix metalloproteinase 2 (MMP-2) is able to degrade type IV collagen and its activity is mostly regulated by tissue inhibitor of matrix metalloproteinase 2 (TIMP-2). These proteins might play a role in tumor progression, including gastric cancer (GC).
Methods:
The study included 108 individuals, GC patients and healthy subjects. Serum levels of all analyzed markers were evaluated by the immunological methods, while immunohistochemistry was used to assess the expression of these proteins in GC, interstitial inflammatory cells and normal tissues.
Results:
The percentage of positive reactions of MMP-2 and TIMP-2 was higher in GC and inflammatory cells compared to normal tissue, while serum levels of these proteins were statistically lower in GC patients in comparison to healthy subjects. There was a significant positive correlation between TIMP-2 immunoreactivity in inflammatory cells and the presence of lymph node metastasis. Area under ROC curve (AUC) for TIMP-2 was higher than MMP-2, while serum MMP-2 was an independent prognostic factor of GC patients' survival.
Conclusion:
Our findings suggest that TIMP-2 seems to be a predictor of tumor progression, especially for nodal involvement, whereas serum MMP-2 might be useful as an independent prognostic factor of patients' survival.
Insights
Tissue inhibitor of matrix metalloproteinase 2 (TIMP-2) predicts gastric cancer progression, particularly nodal involvement. Matrix metalloproteinase 2 (MMP-2) serum levels are a significant independent prognostic factor for patient survival.
Area of Science:
- Oncology
- Biochemistry
- Molecular Biology
Background:
- Matrix metalloproteinase 2 (MMP-2) degrades type IV collagen.
- Tissue inhibitor of matrix metalloproteinase 2 (TIMP-2) regulates MMP-2 activity.
- Both proteins may influence gastric cancer (GC) progression.
Purpose of the Study:
- To investigate the role of MMP-2 and TIMP-2 in gastric cancer.
- To evaluate MMP-2 and TIMP-2 as potential biomarkers for GC progression and survival.
Main Methods:
- Serum levels of MMP-2 and TIMP-2 were measured using immunological methods in 108 individuals (GC patients and healthy controls).
- Immunohistochemistry assessed protein expression in GC tissues, inflammatory cells, and normal tissues.
Main Results:
- MMP-2 and TIMP-2 expression was higher in GC and inflammatory cells than in normal tissue.
- Serum MMP-2 and TIMP-2 levels were lower in GC patients compared to healthy subjects.
- TIMP-2 immunoreactivity correlated positively with lymph node metastasis; serum MMP-2 independently predicted survival.
Conclusions:
- TIMP-2 is a potential predictor of gastric cancer tumor progression, especially nodal metastasis.
- Serum MMP-2 serves as an independent prognostic factor for gastric cancer patient survival.
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