An XRCC1 polymorphism is associated with the outcome of patients with lymphoma undergoing autologous stem cell transplant

作者：Guillem Vicent M; Arbona Cristina; Carlos Hernandez Boluda Juan; Jose Terol Maria; Goterris Rosa; Solano Carlos; Tormo Mar^*

来源：Leukemia and Lymphoma, 2011, 52(7): 1249-1254.

DOI：10.3109/10428194.2011.564694

• Lymphoma
• genetic polymorphisms
• DNA repair
• XRCC1 gene
• transplant

High-dose chemotherapy supported by autologous stem cell transplant (ASCT) remains the treatment of choice for patients with lymphoma failing first-line chemotherapy. Recent evidence suggests a relationship between the genetic variations in genes involved in DNA repair and the outcome of patients with a number of malignancies. In this work, we retrospectively evaluated the influence of an XRCC1 polymorphism (rs25487) on the treatment results in a series of 73 patients with lymphoma subjected to ASCT. The factors correlated to overall survival were the disease status at transplant and XRCC1 genotype. Carriers of a mutant A allele had a two-fold higher risk of death than those with the wild-type genotype. In addition, patients harboring one or two copies of the A allele (GA/AA) were 4.5-fold more likely to develop therapy-related acute myeloid (t-AML). Thus, the cumulative probability of t-AML at 10 years was 37 +/- 13% in patients with the mutant A allele as compared to 8.5 +/- 6% in the remaining cases (p=0.04). Our findings suggest that genetic variation in the DNA repair gene XRCC1 may play a role in the results of transplant in patients with lymphoma.

• 出版日期2011-7