Association Between the 5,10-MTHFR 677C>T and RFC1 80G>A Polymorphisms and Acute Lymphoblastic Leukemia.

Background: Polymorphisms in folate-related genes are closely related to the development of cancer. The 5,10-MTHFR 677C>T and RFC1 80G>A polymorphisms are associated with an increased risk of susceptibility to pediatric ALL.

Objective: The aim of this study was to illustrate the association between 5,10-MTHFR 677C>T and RFC1 80G>A polymorphisms and ALL in a Mexican population. Materials and

Methods: This study was conducted in 60 pediatric ALL patients and 60 healthy individuals. The 5,10-MTHFR 677C>T and RFC1 80G>A polymorphisms were detected by the PCR-RFLP method.

Results: Our investigation revealed that the 5,10-MTHFR 677 C/T and 5,10-MTHFR 677T/T genotypes are associated with susceptibility to pediatric ALL (OR = 1.9, 95% IC = 1.36-12.09, p = 0.012 and OR = 2.8, 95% CI = 1.49-22.82, p = 0.011, respectively). Likewise, the G/A genotype from the RFC1 80G>A polymorphism showed an increased ALL risk compared to RFC1 G80G genotype (OR = 3. 3, 95% CI = 1.75-8.87, p = 0.002).

Conclusion: Therefore, our results suggest that the 5,10-MTHFR 677C>T and RFC1 80G>A polymorphisms are factors involved in the susceptibility to ALL in Mexican population.