The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation

Background/Aim. Polymorphisms of genes which encode transporter P-glycoprotein and most important enzymes for tacrolimus pharmacokinetics can have significant influence reflecting on blood concentrations of this drug. The aim of this study was to examine the distribution of polymorphisms of CYP3A5,...

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Main Authors: Vavić Neven, Rančić Nemanja, Cikota-Aleksić Bojana, Magić Zvonko, Cimeša Jelena, Obrenčević Katarina, Radojević Milorad, Mikov Momir, Dragojević-Simić Viktorija
Format: Article
Language:English
Published: Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade 2016-01-01
Series:Vojnosanitetski Pregled
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Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2016/0042-84501600016V.pdf
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author Vavić Neven
Rančić Nemanja
Cikota-Aleksić Bojana
Magić Zvonko
Cimeša Jelena
Obrenčević Katarina
Radojević Milorad
Mikov Momir
Dragojević-Simić Viktorija
author_facet Vavić Neven
Rančić Nemanja
Cikota-Aleksić Bojana
Magić Zvonko
Cimeša Jelena
Obrenčević Katarina
Radojević Milorad
Mikov Momir
Dragojević-Simić Viktorija
author_sort Vavić Neven
collection DOAJ
description Background/Aim. Polymorphisms of genes which encode transporter P-glycoprotein and most important enzymes for tacrolimus pharmacokinetics can have significant influence reflecting on blood concentrations of this drug. The aim of this study was to examine the distribution of polymorphisms of CYP3A5, CYP3A4 and ABCB1 genes in patients subjected to renal transplantation, for the first time in our transplantation center. Methods. The research was designed as a prospective cross-sectional study which included 211 patients subjected to renal transplantation in the Centre for Solid Organ Transplantation of the university tertiary health care hospital, Military Medical Academy, Belgrade, Serbia. Patients of both genders, 22−69-year-old, Caucasians, subjected to immunosuppressive regimen, including tacrolimus, were recruited for the study. CYP3A5 6986A>G (the *3 or *1, rs776746), CYP3A4 - 392A>G (the *1 or *1B, rs2740574) and ABCB1 3435C>T (rs1045642) genotypes were determined by TaqMan® SNP genotyping assays. Results. Most of our patients (94.8%) had functional CYP3A4 enzyme, while 87.7% of all the patients had diminished CYP3A5 enzymatic activity. On the other hand, about one third of them, 31.3%, had functional ABCB1 transporter. Conclusion. A total of 84.8% of our patients were found to express both the CYP3А5*3*3 genotype (associated with diminished CYP3А5 enzymatic activity) and CYP3А4*1*1/*1*1B (associated with functional CYP3А4 enzymatic activity), while out of all the patients with diminished CYP3A5 enzymatic activity, 68.7% had diminished activity of ABCB1 transporter. However, further studies are necessary in order to show the influence of these genetic polymorphisms on tacrolimus blood concentrations in patients after renal transplantation.
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spelling doaj-art-66331d3dde354179b7f9a80f0b06ed5d2025-08-20T01:57:19ZengMinistry of Defence of the Republic of Serbia, University of Defence, BelgradeVojnosanitetski Pregled0042-84502406-07202016-01-0173766366710.2298/VSP150505016V0042-84501600016VThe distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantationVavić Neven0Rančić Nemanja1Cikota-Aleksić Bojana2Magić Zvonko3Cimeša Jelena4Obrenčević Katarina5Radojević Milorad6Mikov Momir7Dragojević-Simić Viktorija8Military Medical Academy, Center for Transplantation of Solid Organs, BelgradeMilitary Medical Academy, Center for Clinical Pharmacology, Belgrade + University of Defence, Faculty of Medicine of the Military Medical Academy, BelgradeMilitary Medical Academy, Institute for Medical Research, Belgrade + Military Medical Academy, Center for Clinical Pharmacology, BelgradeUniversity of Defence, Faculty of Medicine of the Military Medical Academy, Belgrade + Military Medical Academy, Institute for Medical Research, BelgradeUniversity of Defence, Faculty of Medicine of the Military Medical Academy, BelgradeMilitary Medical Academy, Center for Transplantation of Solid Organs, BelgradeMilitary Medical Academy, Center for Transplantation of Solid Organs, BelgradeFaculty of Medicine, Clinical Pharmacology and Toxicology, Institute for Pharmacology, Novi SadMilitary Medical Academy, Center for Clinical Pharmacology, Belgrade + University of Defence, Faculty of Medicine of the Military Medical Academy, BelgradeBackground/Aim. Polymorphisms of genes which encode transporter P-glycoprotein and most important enzymes for tacrolimus pharmacokinetics can have significant influence reflecting on blood concentrations of this drug. The aim of this study was to examine the distribution of polymorphisms of CYP3A5, CYP3A4 and ABCB1 genes in patients subjected to renal transplantation, for the first time in our transplantation center. Methods. The research was designed as a prospective cross-sectional study which included 211 patients subjected to renal transplantation in the Centre for Solid Organ Transplantation of the university tertiary health care hospital, Military Medical Academy, Belgrade, Serbia. Patients of both genders, 22−69-year-old, Caucasians, subjected to immunosuppressive regimen, including tacrolimus, were recruited for the study. CYP3A5 6986A>G (the *3 or *1, rs776746), CYP3A4 - 392A>G (the *1 or *1B, rs2740574) and ABCB1 3435C>T (rs1045642) genotypes were determined by TaqMan® SNP genotyping assays. Results. Most of our patients (94.8%) had functional CYP3A4 enzyme, while 87.7% of all the patients had diminished CYP3A5 enzymatic activity. On the other hand, about one third of them, 31.3%, had functional ABCB1 transporter. Conclusion. A total of 84.8% of our patients were found to express both the CYP3А5*3*3 genotype (associated with diminished CYP3А5 enzymatic activity) and CYP3А4*1*1/*1*1B (associated with functional CYP3А4 enzymatic activity), while out of all the patients with diminished CYP3A5 enzymatic activity, 68.7% had diminished activity of ABCB1 transporter. However, further studies are necessary in order to show the influence of these genetic polymorphisms on tacrolimus blood concentrations in patients after renal transplantation.http://www.doiserbia.nb.rs/img/doi/0042-8450/2016/0042-84501600016V.pdftacrolimuskidney transplantationpolymorphism, geneticCYP3A4 protein, humanCYP3A5 protein, humanABCB1 protein, human
spellingShingle Vavić Neven
Rančić Nemanja
Cikota-Aleksić Bojana
Magić Zvonko
Cimeša Jelena
Obrenčević Katarina
Radojević Milorad
Mikov Momir
Dragojević-Simić Viktorija
The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
Vojnosanitetski Pregled
tacrolimus
kidney transplantation
polymorphism, genetic
CYP3A4 protein, human
CYP3A5 protein, human
ABCB1 protein, human
title The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
title_full The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
title_fullStr The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
title_full_unstemmed The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
title_short The distribution of genetic polymorphism of CYP3A5, CYP3A4 and ABCB1 in patients subjected to renal transplantation
title_sort distribution of genetic polymorphism of cyp3a5 cyp3a4 and abcb1 in patients subjected to renal transplantation
topic tacrolimus
kidney transplantation
polymorphism, genetic
CYP3A4 protein, human
CYP3A5 protein, human
ABCB1 protein, human
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2016/0042-84501600016V.pdf
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