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Revista Española de Enfermedades Digestivas

versión impresa ISSN 1130-0108

Resumen

VIDAURRETA, M. et al. Vascular endothelial growth factor gene polymorphisms in patients with colorectal cancer. Rev. esp. enferm. dig. [online]. 2010, vol.102, n.1, pp.20-25. ISSN 1130-0108.

Background: angiogenesis plays an important role in tumor progression. The vascular endothelial growth factor (VEGF) is an important regulator of angiogenesis. In the present study we evaluated single nucleotide polymorphisms (SNPs) -2578C > A, -1154G > A, and +936C > T in the VEGF gene, and their prognostic value for patients operated on for colorectal cancer (CRC). Patients and method: VEGF polymorphisms have been analyzed in 177 patients who had undergone surgical resection at Hospital Clínico San Carlos. The analysis of these polymorphisms was performed with specific probes for each nucleotide in a multiplex reaction using real-time PCR. Results: we only found a statistically significant relationship for one of these three polymorphisms, +936C > T, with gender and tumor location; 10.7% of patients heterozygotes for this SNP had tumors located in proximal colon, 35.2% in distal segment and 54.1% in rectum (p = 0.03). Patients with the +936T/T genotype had 100% overall survival (OS). Conclusion: patients with a +936T/T genotype showed increased survival, therefore the +936C > T SNP could be a useful marker in the follow-up and clinical management of patients with colorectal cancer.

Palabras clave : VEGF polymorphisms; Colorectal cancer.

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