Role of GSTM1 (Present/Null) and GSTP1 (Ile105Val) polymorphisms in susceptibility to acute lymphoblastic leukemia among the South Indian population.
Acute lymphoblastic leukaemia (ALL) is the most common pediatric malignancy worldwide. The origin of this disease may be explained by a combination of genetic and environmental factors. Glutathione-s-transferases are a multi-gene family of enzymes involved in the detoxification of a wide variety of environmental carcinogens. A total of 92 immunophenotyped cases (below 25 years of age) and 150 cord blood controls were here analysed by PCR for GSTM1(Present/Null) and RQ-PCR allelic discrimination assay for GSTP1(Ile105Val). We found a significant increased risk for ALL with the GSTM1 null genotype (OR: 1.96, 95%CI=1.08-3.57), but no significant risk was found with the GSTP1 (Ile/Val) genotype (OR: 1.32, 95%CI = 0.74-2.37) and the GSTP1 Val/Val genotype (OR: 1.41, 95%CI=0.5-3.96) alone. Combined analysis of GSTM1 and GSTP1 showed significant higher risk associated with the GSTM1 (null/null) and GSTP1 [(Ile/Val)/ (Val/Val)] genotype (OR=2.78: 95%CI=1.16-6.69).
Suneetha
K J
KJ
Dept of Molecular Oncology, Cancer Institute (WIA), Chennai, Tamil Nadu, India.
Nancy
K Nirmala
KN
Rajalekshmy
K R
KR
Sagar
T G
TG
Rajkumar
T
T
D000293:Adolescent; D017677:Age Distribution; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D016001:Confidence Intervals; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D020022:Genetic Predisposition to Disease / Q000453:epidemiology*; D005838:Genotype; D051549:Glutathione S-Transferase pi / Q000235:genetics*; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D015994:Incidence; D007194:India / Q000453:epidemiology; D008297:Male; D016017:Odds Ratio; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000453:epidemiology / Q000235:genetics*; D011336:Probability; D011379:Prognosis; D018570:Risk Assessment; D012720:Severity of Illness Index; D017678:Sex Distribution; D016019:Survival Analysis; D055815:Young Adult
D051549:Glutathione S-Transferase pi; D005982:Glutathione Transferase