Thymidylate synthase and methionine synthase polymorphisms are not associated with susceptibility to childhood acute lymphoblastic leukemia in Kurdish population from Western Iran

• Published in: Molecular biology reports 2012-03, Vol.39 (3), p.2195-2200
• Main Authors: Rahimi, Zohreh, Ahmadian, Zainab, Akramipour, Reza, Vaisi-Raygani, Asad, Rahimi, Ziba, Parsian, Abbas
• Format: Article
• Language: English
• Subjects: 5-Methyltetrahydrofolate-homocysteine S-methyltransferase; 5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase - genetics; Acute lymphatic leukemia; Animal Anatomy; Animal Biochemistry; Biomedical and Life Sciences; Chemical synthesis; Child; Children; Children & youth; DNA Primers - genetics; Electrophoresis, Agar Gel; Ethnic Groups - genetics; Female; Gene Frequency; Gene polymorphism; Genetic Association Studies; Genetic Predisposition to Disease - genetics; Genotype; Genotyping; Histology; Humans; Iran - epidemiology; Kurdish people; Leukemia; Life Sciences; Lymphocyte receptors; Male; Morphology; Odds Ratio; Polymerase Chain Reaction; Polymorphism; Polymorphism, Genetic - genetics; Polymorphism, Restriction Fragment Length; Precursor Cell Lymphoblastic Leukemia-Lymphoma - enzymology; Precursor Cell Lymphoblastic Leukemia-Lymphoma - epidemiology; Precursor Cell Lymphoblastic Leukemia-Lymphoma - ethnology; Restriction fragment length polymorphism; Risk Factors; Sex; Thymidylate synthase; Thymidylate Synthase - genetics
• ISSN: 0301-4851; 1573-4978
• DOI: 10.1007/s11033-011-0968-y

In order to determine the influence of polymorphism in thymidylate synthase (TS 28-bp repeat) and methionine synthase (MS A2756G) genes on the susceptibility to acute lymphoblastic leukemia (ALL), 73 children with ALL and 128 age and sex matched unrelated healthy individuals from the Kermanshah Province of Iran were screened. The genotyping of TS 28-bp repeat and MS A2756G polymorphisms were performed by polymerase chain reaction (PCR) and PCR–RFLP, respectively. The frequency of TS 2R allele in patients and controls were 41.5 and 38%, respectively (Odds ratios (OR) = 1.13, 95%CI 0.73–1.74, P  = 0.56). The allelic frequency of G allele of MS was higher (25%) in patients compared with healthy subjects (23%) (OR = 1.09, 95%CI 0.67–1.75, P  = 0.71). Considering MS AA and TS 3R3R genotypes as reference indicated that individuals with MS GG + TS 2R2R genotypes have 1.3 - fold increase in the risk of ALL (OR = 1.3, 95%CI 0.6–2.7, P  = 0.5). Our results showed that neither TS 28-bp repeat nor MS A2756G polymorphisms are risk factors for susceptibility to ALL in Western Iran.