PMID- 18946804 OWN - NLM STAT- MEDLINE DCOM- 20090123 LR - 20221207 IS - 1366-5928 (Electronic) IS - 0049-8254 (Linking) VI - 38 IP - 11 DP - 2008 Nov TI - Influence of uridine diphosphate (UDP)-glucuronosyltransferases and ABCC2 genetic polymorphisms on the pharmacokinetics of mycophenolic acid and its metabolites in Chinese renal transplant recipients. PG - 1422-36 LID - 10.1080/00498250802488585 [doi] AB - The aim was to investigate the effect of UGT1A9, UGT1A8, UGT2B7 and ABCC2 polymorphism on the pharmacokinetics of mycophenolic acid (MPA) and its metabolites phenolic glucuronide (MPAG) and acyl glucuronide (AcMPAG) in Chinese renal transplant recipients. Single nucleotide polymorphisms (SNP) in UGT1A9-118(dT)(9)/(10), UGT1A9 T-440C/C-331T, UGT1A8*3, UGT2B7 G211T, UGT2B7 C802T, ABCC2 C-24T, and ABCC2 G1249A were detected. A total of 46 recipients were enrolled in the pharmacokinetics study at day 30 after kidney transplantation. Differences in the MPA pharmacokinetic profiles confirmed large inter-patient variation of MPA exposure. A statistical significant increase in the dose-adjusted AUC(6-12) level of MPA was found in patients bearing the -118(dT)(10) allele of the UGT1A9 gene (T(9) = 7.34 +/- 4.11 mg h ml(-1) g(-1); T(9)/T(10) = 11.54 +/- 7.62 mg h ml(-1) g(-1); and T(10) = 11.89 +/-8.76 mg h ml(-1) g(-1), p = 0.041). A similar trend was also observed for the dose-adjusted AUC(0-12) and AUC(6-12) of MPAG. Patients carrying the heterozygous mutant alleles of ABCC2 G1249A exhibited higher AUC(6-12)/D of AcMPAG than those with wild-type genotype (p = 0.016). The other SNPs that were genotyped did not cause any significant variation in MPA and MPAG pharmacokinetic parameters. In conclusion, the enterohepatic recirculation of MPA in the patients seems to be more extensive in UGT1A9-118(dT)(10) allele carriers, and the exposure of AcMPAG is higher in patients carrying ABCC2 G1249A genotype than those with wild-type genotype. FAU - Zhang, W-X AU - Zhang WX AD - Institute of Clinical Pharmacology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China. FAU - Chen, B AU - Chen B FAU - Jin, Z AU - Jin Z FAU - Yu, Z AU - Yu Z FAU - Wang, X AU - Wang X FAU - Chen, H AU - Chen H FAU - Mao, A AU - Mao A FAU - Cai, W AU - Cai W LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Xenobiotica JT - Xenobiotica; the fate of foreign compounds in biological systems JID - 1306665 RN - 0 (ABCC2 protein, human) RN - 0 (Enzyme Inhibitors) RN - 0 (Glucuronides) RN - 0 (Multidrug Resistance-Associated Protein 2) RN - 0 (Multidrug Resistance-Associated Proteins) RN - 0 (UGT1A9 protein, human) RN - 54TS5J9T0K (mycophenolic acid glucuronide) RN - EC 2.4.1.- (UGT2B7 protein, human) RN - EC 2.4.1.17 (Glucuronosyltransferase) RN - EC 2.4.1.17 (UDP-Glucuronosyltransferase 1A9) RN - EC 2.4.1.17 (UDP-glucuronosyltransferase, UGT1A8) RN - HU9DX48N0T (Mycophenolic Acid) SB - IM MH - Adult MH - Asian People/genetics MH - Enzyme Inhibitors/*pharmacokinetics MH - Female MH - Genotype MH - Glucuronides/metabolism MH - Glucuronosyltransferase/*genetics/metabolism MH - Histocompatibility Testing MH - Humans MH - Kidney Transplantation MH - Male MH - Middle Aged MH - Multidrug Resistance-Associated Protein 2 MH - Multidrug Resistance-Associated Proteins/*genetics/metabolism MH - Mycophenolic Acid/analogs & derivatives/metabolism/*pharmacokinetics MH - *Polymorphism, Genetic MH - UDP-Glucuronosyltransferase 1A9 EDAT- 2008/10/24 09:00 MHDA- 2009/01/24 09:00 CRDT- 2008/10/24 09:00 PHST- 2008/10/24 09:00 [pubmed] PHST- 2009/01/24 09:00 [medline] PHST- 2008/10/24 09:00 [entrez] AID - 904709753 [pii] AID - 10.1080/00498250802488585 [doi] PST - ppublish SO - Xenobiotica. 2008 Nov;38(11):1422-36. doi: 10.1080/00498250802488585.