Relationship between the gene rs1024611 A>G Polymorphism and Cancer Susceptibility: A Meta-analysis Involving 14,617 Subjects.

Inflammatory and inducible chemokines are the hallmarks of malignancy. Monocyte chemo-attractant protein-1 (MCP-1) is a crucial chemokine implicated in infection and inflammation. : We performed an updated meta-analysis of thirty independent case-control studies with 6,777 cancer cases and 7,840 controls to determine if the gene rs1024611 A > G variant is associated with the risk of cancer. : The G allele carriers of rs1024611 in the gene might have a null association with cancer risk in overall comparison. In a subgroup analysis by ethnicity, we identified a marked association between the  G allele rs1024611 polymorphism and cancer risk in the Caucasian populations (GG . AA: OR = 1.72, 95% CI, 1.12-2.64, = .013, and GG . AG/AA: OR = 1.82, 95% CI, 1.19-2.78, = .006). The potential bias in literature selection was witnessed in this meta-analysis (G . A:   =  0.187,  =  0.049; and GG/GA . AA:   =  0.069,  =  0.024). The adjusted ORs and CIs of the nonparametric "trim-and-fill" method demonstrated the reliability of these findings. The outcome of heterogeneity analysis indicated that heterogeneity might be due to small sample sizes (<1000 subjects), cancer types (bladder cancer, other cancers), ethnicity (Asians), and population-based studies. However, the sensitivity analysis validated the reliability of the findings. : In conclusion, this updated meta-analysis showed that the G carrier of the gene rs1024611 is associated with susceptibility to cancer in Caucasian.