Pub Date : 2020-03-31DOI: 10.2174/1875692117666190925115852
Reni Widyastuti, M. Louisa, I. Rinaldi, Riki Nova, Instiaty Instiaty, R. Priambodo
Imatinib mesylate is the first tyrosine kinase inhibitor approved for chronic myeloid leukemia (CML) therapy. Imatinib is an effective drug. However, previous studies have shown that about 20-30% of patients eventually would develop resistance to imatinib. Approximately 40% of imatinib resistance is associated with BCRABL kinase domain mutation. One of the most common and serious variations account for imatinib response is T315I of ABL1 gene. The study aimed to examine the association of T315I mutation with the ABL1 gene and its relation to major molecular response (MMR) achievement in CML patients. This study also examined other mutations adjacent to T315I, i.e., F311I, F317L, and different possible variations in the ABL1 gene. This was a cross-sectional study on Indonesian CML patients in chronic phase. We analyzed 120 blood samples from patients in chronic phase who have received imatinib mesylate (IM) for ≥12 months. There were no T315I, F311I, and F317L mutations found in this study. However, we found another variation, which was 36 substitutions from A to G at position 163816 of ABL1 gene (according to NG_012034.1). We found no T315I, F311I, and F317L mutations in this study. Our findings suggest that there might be other factors that influenced the MMR achievement in our study patients. However, there were 36 substitutions from A to G at position 163.816 (according to NG_012034.1) that needed further examination to explore the significance of this mutation in clinical practice.
{"title":"Mutation Analysis of ABL1 Gene and its Relation to the Achievement of Major Molecular Response in Indonesian Chronic Myeloid Leukemia Patients","authors":"Reni Widyastuti, M. Louisa, I. Rinaldi, Riki Nova, Instiaty Instiaty, R. Priambodo","doi":"10.2174/1875692117666190925115852","DOIUrl":"https://doi.org/10.2174/1875692117666190925115852","url":null,"abstract":"\u0000\u0000Imatinib mesylate is the first tyrosine kinase inhibitor approved\u0000for chronic myeloid leukemia (CML) therapy. Imatinib is an effective drug. However,\u0000previous studies have shown that about 20-30% of patients eventually would develop resistance\u0000to imatinib. Approximately 40% of imatinib resistance is associated with BCRABL\u0000kinase domain mutation. One of the most common and serious variations account for\u0000imatinib response is T315I of ABL1 gene.\u0000\u0000\u0000\u0000The study aimed to examine the association of T315I mutation with the ABL1\u0000gene and its relation to major molecular response (MMR) achievement in CML patients.\u0000This study also examined other mutations adjacent to T315I, i.e., F311I, F317L, and different\u0000possible variations in the ABL1 gene.\u0000\u0000\u0000\u0000This was a cross-sectional study on Indonesian CML patients in chronic phase.\u0000We analyzed 120 blood samples from patients in chronic phase who have received\u0000imatinib mesylate (IM) for ≥12 months.\u0000\u0000\u0000\u0000There were no T315I, F311I, and F317L mutations found in this study. However,\u0000we found another variation, which was 36 substitutions from A to G at position 163816 of\u0000ABL1 gene (according to NG_012034.1).\u0000\u0000\u0000\u0000 We found no T315I, F311I, and F317L mutations in this study. Our findings\u0000suggest that there might be other factors that influenced the MMR achievement in our\u0000study patients. However, there were 36 substitutions from A to G at position 163.816 (according\u0000to NG_012034.1) that needed further examination to explore the significance of\u0000this mutation in clinical practice.\u0000","PeriodicalId":11056,"journal":{"name":"Current Pharmacogenomics and Personalized Medicine","volume":"4 1","pages":"48-54"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75963805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}