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@article{1491902, author = {Belohlavkova, Petra and Vrbacky, Filip and Voglova, Jaroslava and Ráčil, Zdeněk and Žáčková, Daniela and Hrochova, Katerina and Malakova, Jana and Mayer, Jiří and Zak, Pavel}, article_location = {Poland}, article_number = {6}, doi = {http://dx.doi.org/10.5114/aoms.2018.73538}, keywords = {clinical response; imatinib; chronic myeloid leukemia; genetic polymorphisms}, language = {eng}, issn = {1734-1922}, journal = {Archives of Medical Science}, title = {The significance of enzyme and transporter polymorphisms for imatinib plasma levels and achieving an optimal response in chronic myeloid leukemia patients}, volume = {14}, year = {2018} }
TY - JOUR ID - 1491902 AU - Belohlavkova, Petra - Vrbacky, Filip - Voglova, Jaroslava - Ráčil, Zdeněk - Žáčková, Daniela - Hrochova, Katerina - Malakova, Jana - Mayer, Jiří - Zak, Pavel PY - 2018 TI - The significance of enzyme and transporter polymorphisms for imatinib plasma levels and achieving an optimal response in chronic myeloid leukemia patients JF - Archives of Medical Science VL - 14 IS - 6 SP - 1416-1423 EP - 1416-1423 PB - Termedia Publishing House SN - 17341922 KW - clinical response KW - imatinib KW - chronic myeloid leukemia KW - genetic polymorphisms N2 - Introduction: Imatinib mesylate is the drug of choice for patients with chronic myeloid leukemia (CML). Imatinib pharmacokinetics is affected by a number of transport proteins and enzymes. Material and methods: In the present study we evaluated the association of eight polymorphisms in the seven genes CYP3A5*3 (rs776746), CYP3A4*1 (rs2740574), CYP2C9*3 (rs1057910), SLC22A1 (rs683369), ABCB1 (rs1045642, rs1128503), ABCG2 (rs2231142) and ABCC2 (rs717620) with imatinib plasma level and achieving an optimal clinical response in 112 CML patients (53 men and 59 women). Results: No association was found between the examined polymorphisms in rs776746, rs2740574, rs1057910, rs683369, rs1045642, rs1128503, rs2231142, rs717620 and the achieved imatinib plasma level. The influence of rs776746 (CYP3A5*3) on the achievement of a complete cytogenetic response (CCyR) at 6 months was borderline non-significant (p = 0.06). Furthermore, no association was demonstrated between rs776746 polymorphisms and the achievement of a major molecular response (MMR) at 12 or 18 months. Polymorphisms rs776746, rs2740574, rs1057910, rs683369, rs1045642, rs1128503, rs2231142, rs717620 showed no impact on the optimal therapeutic response. Conclusions: Despite the results of some other studies, no other polymorphism we analyzed was associated with imatinib plasma level or clinical response. The treatment outcomes cannot be predicted using the candidate gene approach and treatment decisions cannot be made according to the polymorphisms investigated in this study. ER -
BELOHLAVKOVA, Petra, Filip VRBACKY, Jaroslava VOGLOVA, Zdeněk RÁČIL, Daniela ŽÁČKOVÁ, Katerina HROCHOVA, Jana MALAKOVA, Jiří MAYER and Pavel ZAK. The significance of enzyme and transporter polymorphisms for imatinib plasma levels and achieving an optimal response in chronic myeloid leukemia patients. \textit{Archives of Medical Science}. Poland: Termedia Publishing House, 2018, vol.~14, No~6, p.~1416-1423. ISSN~1734-1922. Available from: https://dx.doi.org/10.5114/aoms.2018.73538.
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