Association of TPMT (rs۱۸۰۰۴۶۰) Gene Polymorphism with Childhood Acute Lymphoblastic Leukemia in a Population from Guilan, Iran
Publish place: Journal of Genetic Resources، Vol: 6، Issue: 2
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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JR_SGR-6-2_005
تاریخ نمایه سازی: 6 اردیبهشت 1400
Abstract:
Acute lymphoblastic leukemia (ALL) is a malignant transformation and proliferation of lymphoid progenitor cells in bone marrow and blood, which is mainly found in children. Thiopurine methyltransferase (TPMT) is a thiopurine drug metabolizer enzyme that is prescribed for the treatment of ALL. Several single nucleotide polymorphisms in the TPMT gene have been reported to be associated with the decreased and deficient activity of the enzyme, which disrupts thiopurine drug metabolization and results in severe hematopoietic toxicity, which could be fatal in the patients. Since genetic screening before the thiopurine drug treatment of patients could be helpful for dosage optimization and efficient chemotherapy, this study was conducted to evaluate the association of G>A ۱۴۶ TPMT gene polymorphism (rs۱۸۰۰۴۶۰) with ALL susceptibility in an Iranian childhood population from the province of Guilan. This case-control study was performed on ۴۰۰ individuals including ۲۰۰ patients and ۲۰۰ healthy children. Allele-specific PCR (AS-PCR) was applied to genotype the polymorphism of the TPMT gene. We found a significant difference in genotype distributions of G>A ۱۴۶ TPMT polymorphism between patients and controls (p = ۰.۰۰۰۱). Our results showed that individuals with the GA genotype had significantly increased risk of ALL (OR = ۳.۶۶, %۹۵CI = ۱.۸۷-۷.۱۷, p = ۰.۰۰۰۱), whereas individuals with the AA genotype were not associated with the increased risk of ALL (p = ۰.۲). This study may provide useful information for early diagnosis and an optimized strategy for the treatment of patients. However, more studies must perform for further characterization of this issue.
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Authors
Mohammad Hedayati
Department of Cell and Molecular Biology, University of Guilan, Rasht, Iran
Hamidreza Vaziri
Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
Bahram Darbandi
Guilan University of Medical Sciences, Rasht, Iran
Adel Baghersalimi
Guilan University of Medical Sciences, Rasht, Iran
Mohammadmahdi Jafarzadeh
Department of Biology, Rasht Branch, Islamic Azad University, Rasht, Iran
Ali Salehzadeh
Department of Biology, Rasht Branch, Islamic Azad University, Rasht, Iran
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