Contribution of Matrix Metalloproteinase-9 rs3918242 Genotypes to Childhood Leukemia Risk

Contribution of Matrix Metalloproteinase-2 and Matrix Metalloproteinase-9 to Upper Tract Urothelial Cancer Risk in Taiwan

Matrix metalloproteinase (MMP)-2 and -9, which degrade type IV collagen, are linked to cancer invasion and metastasis. Gene polymorphisms in MMP-2 and MMP-9 can influence their function, impacting cancer development and progression. This study analyzed the association between polymorphisms MMP-2 rs243865 (C-1306T), rs2285053 (C-735T), and MMP-9 rs3918242 (C-1562T) with serum concentrations of these enzymes in upper tract urothelial cancer (UTUC) patients. We conducted a case-control study with 218 UTUC patients and 580 healthy individuals in Taiwan. Genotyping was performed using PCR/RFLP on DNA from blood samples, and MMP-2 and MMP-9 serum levels and mRNA expressions in 30 UTUC patients were measured using ELISA and real-time PCR. Statistical analysis showed that MMP-2 rs2285053 and MMP-9 rs3918242 genotypes were differently distributed between UTUC patients and controls (p = 0.0199 and 0.0020). The MMP-2 rs2285053 TT genotype was associated with higher UTUC risk compared to the CC genotype (OR = 2.20, p = 0.0190). Similarly, MMP-9 rs3918242 CT and TT genotypes were linked to increased UTUC risk (OR = 1.51 and 2.92, p = 0.0272 and 0.0054). In UTUC patients, TT carriers of MMP-2 rs2285053 and MMP-9 rs3918242 showed higher mRNA and protein levels (p < 0.01). These findings suggest that MMP-2 rs2285053 and MMP-9 rs3918242 genotypes are significant markers for UTUC risk and metastasis in Taiwan.

MMP-9 gene polymorphisms on cancer risk: an updated systematic review and meta-analysis

To provide a comprehensive account of the association of MMP-9 gene polymorphisms (rs3918242) with susceptibility to cancer. A literature search for eligible candidate gene studies published before May 27, 2022 was conducted in PubMed, Medline, Google Scholar and Web of Science. Potential sources of heterogeneity were sought out across subgroups and sensitivity analysis. Publication bias were also estimated. Overall, a total of 37 articles with 7616 cases and 8165 controls for rs3918242 gene polymorphisms were enrolled. Our meta-analysis suggests that MMP-9 rs3918242 might be associated with breast cancer and gastric cancer susceptibility, and perhaps reduce the risk of lung cancer.