Glutathione S-transferase M1-T1 null genotypes and susceptibility to Hodgkin’s lymphoma

Abstract

Hodgkin?s Lymphoma (HL) is a heterogeneous malignant disease of lymph node. The glutathione S-transferases (GSTs) have an important role in the detoxification of a wide variety of toxins and carcinogens. Studies have been indicated that genetic variation in the GST gene family may lead to susceptibility in HL. Hereby, we investigated the association of GSTT1 and GSTM1 null genotypes with HL in the Iranian population. This case-control study consisted of 76 patients suffering from HL and 120 healthy individuals as a control group. Genomic DNA was extracted and genotyping of GSTT1 and GSTM1 genes for the identification of their null genotypes was carried out using multiplex PCR method. Our findings indicated that GSTM1 null genotype is associated with risk of developing HL in our population (P=0.025; OR=2.00; 95%CI=1.110- 3.602); however, no association was found for GSTT1 null genotype. Our study also showed that the GSTM1 null genotype increased the risk of disease in the individuals younger than 45 years, and it had a positive association with low ESR. GSTM1 null genotype may have the key role in increasing the risk of HL in the Iranian population.