AIM: Genetic and environmental factors are risk factors for breast cancer. Our aim was to investigate the associations between genetic polymorphism of GST genes (GSTM1, GSTT1 and GSTP1) and susceptibility to breast cancer in an Iranian population. MATERIALS & METHODS: This case-control study was carried out on 134 patients with breast cancer and 152 healthy, cancer-free women. GSTP1 polymorphism was determined using tetra-primer amplification refractory mutation system PCR assay and GSTM1 and GSTT1 were genotyped by a multiplex PCR. RESULTS: We found that the GSTM1 null genotype is a risk factor for predisposition to breast cancer (odds ratio [OR] = 2.01; 95% CI = 1.78-3.45; p = 0.010). No significant difference was found between the groups regarding GSTT1 null genotype (p > 0.05). The GSTP1 Ile/Val and Val/Val genotypes were associated with breast cancer risk (OR = 3.29; 95% CI = 1.84-5.91; p < 0.0001 and OR = 20.68; 95% CI = 5.66-75.60; p < 0.0001, respectively). CONCLUSION: In summary, GSTM1 and GSTP1, but not GSTT1 genetic polymorphisms are associated with increased risk of breast cancer in our population.
AIM: Genetic and environmental factors are risk factors for breast cancer. Our aim was to investigate the associations between genetic polymorphism of GST genes (GSTM1, GSTT1 and GSTP1) and susceptibility to breast cancer in an Iranian population. MATERIALS & METHODS: This case-control study was carried out on 134 patients with breast cancer and 152 healthy, cancer-free women. GSTP1 polymorphism was determined using tetra-primer amplification refractory mutation system PCR assay and GSTM1 and GSTT1 were genotyped by a multiplex PCR. RESULTS: We found that the GSTM1 null genotype is a risk factor for predisposition to breast cancer (odds ratio [OR] = 2.01; 95% CI = 1.78-3.45; p = 0.010). No significant difference was found between the groups regarding GSTT1 null genotype (p > 0.05). The GSTP1 Ile/Val and Val/Val genotypes were associated with breast cancer risk (OR = 3.29; 95% CI = 1.84-5.91; p < 0.0001 and OR = 20.68; 95% CI = 5.66-75.60; p < 0.0001, respectively). CONCLUSION: In summary, GSTM1 and GSTP1, but not GSTT1 genetic polymorphisms are associated with increased risk of breast cancer in our population.
Authors: Shadi Amininia; Mohammad Hashemi; Mahboubeh Ebrahimi; Mohammad Ali Mashhadi; Seyed Mehdi Hashemi; Mohsen Taheri; Saeid Ghavami Journal: Med Oncol Date: 2014-08-27 Impact factor: 3.064
Authors: Magdy M Youssef; Afaf M Elsaid; Rasha A El-Saeed; Riyadh T Mukhlif; Hisham Megahed; Adel I Al-Alawy; Rami M Elshazli Journal: Biochem Genet Date: 2021-05-03 Impact factor: 1.890