Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Thiopurine S-Methyltransferase Assay by Hplc in Acute Lymphoblastic Leukemia Patients and a Healthy Iranian Population



Mozafari S1 ; Einollahi N2 ; Shahgholi E3 ; Vardasbi S1 ; Golestani A1
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Medical Laboratory Sciences, Allied Medical Sciences School, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Pediatrics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: Acta Medica Iranica Published:2018

Abstract

Thiopurine s-methyltransferase (TPMT) plays a key role in the metabolism of the drug; 6-MP in children with acute lymphoblastic leukemia (ALL). The wild-type TPMT*1 allele and mutant alleles are associated with normal and intermediate enzyme activity, respectively. In patients with intermediate or deficient TPMT activity, normal dose of the drug may cause serious side effects such as bone marrow toxicity. The aim of this study was to assay the enzyme activity by HPLC for right ordering of chemotherapy drug doses in the patients. TPMT activity was measured in RBC of healthy adults (n=73) and children (n=10). Also, TPMT (*2, *3A, *3B and *3C) genotype of the samples were assessed by ARMS-PCR and RFLP-PCR. No indication of gender and age differences in the TPMT activity was found. This study showed that the HPLC method was sensitive, accurate and precise and can be used in routine clinical laboratory tests. © 2018 Tehran University of Medical Sciences. All rights reserved.