The - 801 G/A Polymorphism of CXCL12 Promoter Gene as Unfavorable Genetic Prognosis factor involved in Colorectal Cancer
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CCXL12 also called stromal derived factor-1 (SDF-1), a protein related to angiogenesis and inflammation, has been correlated with the progression of a number of malignancies. Single nucleotide - 801G/A polymorphism of CXCL12 gene has been described and is regarded as a target for cis-acting factor that has the ability to up-regulate CXCL12 expression.The aim of the study. Based on the suggested role of CXCL12 in the pathogenesis of cancer we examined the association of the gene variant CXCL12-A with colorectal cancer.Material and methods. We genotyped - 801G/A polymorphism of CXCL12 gene in 164 colorectal patients and 184 age-matched healthy subjects. Genotyping was done with PCR-RFLP.Results. There were no significant differences in the frequencies of SDF1-3'A allele, between patients and controls. The frequency of CXCL12 G/A and G/A plus A/A genotype was significantly higher in a group of patients with lymph node metastasis compared with those without metastasis.Conclusions. The CXCL12 gene G/A polymorphism was not related to colorectal cancer risk but is associated with the induction of lymph-node metastasis of colorectal cancer disease in Polish.
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22 - 9 - 2010
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