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Nies AT, Schaeffeler E, Schwab M. Hepatic solute carrier transporters and drug therapy: Regulation of expression and impact of genetic variation. Pharmacol Ther 2022; 238:108268. [DOI: 10.1016/j.pharmthera.2022.108268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/25/2022] [Accepted: 08/15/2022] [Indexed: 11/30/2022]
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2
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Chen SQ, Ding WH, Zhang N, Xiang Q, Cui YM, Zhao X. Influence of OATP1B1 and OATP1B3 mutations and glomerular filtration rate on trough serum digoxin concentration in the Chinese population: A prospective cohort study. Medicine (Baltimore) 2019; 98:e15088. [PMID: 30946364 PMCID: PMC6456138 DOI: 10.1097/md.0000000000015088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Polymorphisms of organic anion transporting polypeptides (OATPs) have been reported to affect trough serum digoxin concentration (SDC). However, the association of these polymorphisms with trough SDC in Chinese heart failure patients has not been studied. We aim to explore whether OATP1B1 388A>G, OATP1B1 521T>C, and OATP1B3 699G>A influence trough SDC in Chinese heart failure patients and to make clinical recommendations.Chinese patients (n = 104) diagnosed with heart failure under long-term digoxin therapy (0.125 mg daily) were enrolled in this study. Blood samples were collected for the analysis of trough SDC (immunofluorescence) and the polymorphisms of OATP1B1 388A>G, OATP1B1 521T>C, and OATP1B3 699G>A (PCR-RFLP and Sanger sequencing).Patients with glomerular filtration rate (GFR) under 30 mL/min had significantly higher trough SDC (1.20 ± 0.50 ng/mL) than recommended trough SDC for heart failure patients. Trough SDC was not significantly influenced by mutations of OATP1B1 388A>G (P = .890), 521T>C (P = .054), and OATP1B3 699G>A (P = .854). Patients with OATP1B1 521T>C mutant-type carrier had slightly higher trough SDC (0.98 ± 0.53 ng/mL) than those with wild-type carrier (0.74 ± 0.40 ng/mL) when they have repaired renal function.Heart failure patients with severe renal dysfunction (GFR<60 mL/min) and/or OATP1B1 521T>C mutant-type carriers are recommended a smaller dosage of digoxin and strict therapeutic drug monitoring.
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Affiliation(s)
| | - Wen-hui Ding
- Department of Cardiology, Peking University First Hospital, Beijing, China
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Yang F, Liu L, Chen L, Liu M, Liu F, Xiong Y, Hu X, Xia C. OATP1B3 (699G>A) and CYP2C9*2, *3 significantly influenced the transport and metabolism of glibenclamide and glipizide. Sci Rep 2018; 8:18063. [PMID: 30584236 PMCID: PMC6305483 DOI: 10.1038/s41598-018-36212-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/16/2018] [Indexed: 11/24/2022] Open
Abstract
Glibenclamide and glipizide show large substantial inter-individual variation in clinical efficacy, which may be resulted from the genetic differences of metabolic enzymes and transporters in individuals. This study purposed to investigate the effect of OATP1B3 and CYP2C9 genetic polymorphisms on the transport and metabolism of glibenclamide and glipizide in human. An LC-MS method was used to determine the uptake of glibenclamide and glipizide in OATP1B3, OATP1B3 (344T > G) and OATP1B3 (699G > A)-HEK293T cells and their metabolism in CYP2C9*1, *2 and *3 recombinase system. Glibenclamide can be taken in OATP1B3 (wild-type), OATP1B3 (344T > G) and OATP1B3 (699G > A)-HEK293T cells with the Vmax values of 44.91 ± 7.97, 46.08 ± 8.69, and 37.31 ± 5.04 pmol/min/mg, while glipizide was taken in with Vmax of 16.50 ± 3.64, 16.87 ± 4.23, and 13.42 ± 2.79 pmol/min/mg, respectively. The internal clearance of glibenclamide and glipizide in OATP1B3 (699G > A) was less than that in wild-type. Glibenclamide can be metabolized in CYP2C9*1, *2 and *3 recombinase system with the Vmax values of 1.58 ± 0.71, 0.69 ± 0.25, and 0.41 ± 0.13 nmol/min/mg protein, while glipizide was metabolized with Vmax of 8.82 ± 2.78, 5.99 ± 1.95, and 2.87 ± 1.03 nmol/min/mg protein, respectively. The internal clearance of glibenclamide and glipizide in CYP2C9*2 and *3 was markedly reduced compared to that in CYP2C9*1. These results collectively demonstrate that OATP1B3 (699G > A) and CYP2C9*2 and *3 have a significant influence on the transport and metabolism of glibenclamide and glipizide.
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Affiliation(s)
- Fayou Yang
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China
| | - Linlin Liu
- Nanchang Hongdu Hospital of TCM, Nanchang, 330038, P.R. China
| | - Lin Chen
- Nanchang Hongdu Hospital of TCM, Nanchang, 330038, P.R. China
| | - Mingyi Liu
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China
| | - Fanglan Liu
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China
| | - Yuqing Xiong
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China
| | - Xiao Hu
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China
| | - Chunhua Xia
- Clinical Pharmacology Institute, Nanchang University, Nanchang, 330006, P.R. China.
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Dickens D, Rädisch S, Chiduza GN, Giannoudis A, Cross MJ, Malik H, Schaeffeler E, Sison-Young RL, Wilkinson EL, Goldring CE, Schwab M, Pirmohamed M, Nies AT. Cellular Uptake of the Atypical Antipsychotic Clozapine Is a Carrier-Mediated Process. Mol Pharm 2018; 15:3557-3572. [PMID: 29944835 DOI: 10.1021/acs.molpharmaceut.8b00547] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The weak base antipsychotic clozapine is the most effective medication for treating refractory schizophrenia. The brain-to-plasma concentration of unbound clozapine is greater than unity, indicating transporter-mediated uptake, which has been insufficiently studied. This is important, because it could have a significant impact on clozapine's efficacy, drug-drug interaction, and safety profile. A major limitation of clozapine's use is the risk of clozapine-induced agranulocytosis/granulocytopenia (CIAG), which is a rare but severe hematological adverse drug reaction. We first studied the uptake of clozapine into human brain endothelial cells (hCMEC/D3). Clozapine uptake into cells was consistent with a carrier-mediated process, which was time-dependent and saturable ( Vmax = 3299 pmol/million cells/min, Km = 35.9 μM). The chemical inhibitors lamotrigine, quetiapine, olanzapine, prazosin, verapamil, indatraline, and chlorpromazine reduced the uptake of clozapine by up to 95%. This could in part explain the in vivo interactions observed in rodents or humans for these compounds. An extensive set of studies utilizing transporter-overexpressing cell lines and siRNA-mediated transporter knockdown in hCMEC/D3 cells showed that clozapine was not a substrate of OCT1 (SLC22A1), OCT3 (SLC22A3), OCTN1 (SLC22A4), OCTN2 (SLC22A5), ENT1 (SLC29A1), ENT2 (SLC29A2), and ENT4/PMAT (SLC29A4). In a recent genome-wide analysis, the hepatic uptake transporters SLCO1B1 (OATP1B1) and SLCO1B3 (OATP1B3) were identified as additional candidate transporters. We therefore also investigated clozapine transport into OATP1B-transfected cells and found that clozapine was neither a substrate nor an inhibitor of OATP1B1 and OATP1B3. In summary, we have identified a carrier-mediated process for clozapine uptake into brain, which may be partly responsible for clozapine's high unbound accumulation in the brain and its drug-drug interaction profile. Cellular clozapine uptake is independent from currently known drug transporters, and thus, molecular identification of the clozapine transporter will help to understand clozapine's efficacy and safety profile.
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Affiliation(s)
- David Dickens
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Steffen Rädisch
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - George N Chiduza
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Athina Giannoudis
- Department of Molecular and Clinical Cancer Medicine , University of Liverpool , Liverpool L69 3BX , U.K
| | - Michael J Cross
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Hassan Malik
- Liverpool Hepatobiliary Unit , University Hospital Aintree , Liverpool L9 7AL , U.K
| | - Elke Schaeffeler
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology , 70376 Stuttgart , Germany.,University Tübingen , Tübingen , Germany
| | - Rowena L Sison-Young
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Emma L Wilkinson
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Christopher E Goldring
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Matthias Schwab
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology , 70376 Stuttgart , Germany.,Department of Clinical Pharmacology , University Hospital Tübingen , 72076 Tubingen , Germany.,Department of Pharmacy and Biochemistry , University Tübingen , 72076 Tübingen , Germany
| | - Munir Pirmohamed
- Department of Molecular and Clinical Pharmacology , University of Liverpool , Liverpool L69 3GL , U.K
| | - Anne T Nies
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology , 70376 Stuttgart , Germany.,University Tübingen , Tübingen , Germany
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5
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Tanabe Y, Shimizu C, Hamada A, Hashimoto K, Ikeda K, Nishizawa D, Hasegawa J, Shimomura A, Ozaki Y, Tamura N, Yamamoto H, Yunokawa M, Yonemori K, Takano T, Kawabata H, Tamura K, Fujiwara Y. Paclitaxel-induced sensory peripheral neuropathy is associated with an ABCB1 single nucleotide polymorphism and older age in Japanese. Cancer Chemother Pharmacol 2017; 79:1179-1186. [DOI: 10.1007/s00280-017-3314-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 04/18/2017] [Indexed: 11/29/2022]
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6
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Evangeli L, Ioannis S, Valentinos K, Antigony M, Elli I, Eleftheria H, Vasiliki G, Evangelos B. SLCO1B3 screening in colorectal cancer patients using High-Resolution Melting Analysis method and immunohistochemistry. Tumour Biol 2017; 39:1010428317691176. [PMID: 28349822 DOI: 10.1177/1010428317691176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Personalized medicine has made some major advances in colorectal cancer, but new biomarkers still remain a hot issue as an emerging tool with potential prognostic and therapeutic potential. We investigated for SLCO1B3 gene alterations and protein expression in colorectal cancer, using the novel high-resolution melting analysis technique and immunohistochemistry. Formalin-fixed paraffin-embedded tumor samples from 30 colorectal cancer patients were used. The screening for gene alterations was done by high-resolution melting analysis for all exons of SLCO1B3 gene. Organic anion-transporting polypeptide 1B3 protein expression was assessed by immunohistochemistry using the monoclonal mouse MDQ antibody. High level of polymorphism was observed in the SLCO1B3 gene. We identified three previously reported polymorphisms in exons 7, 12, and 14, 699G>A, 1557A>G, and 1833G>A, respectively. In the exon 5, one variant seems to correspond to an as yet unknown SLCO family member. The immunohistochemical study revealed that organic anion-transporting polypeptide 1B3 was expressed in 27/30 samples. Of great interest, the three samples, which were immunohistochemically negative, all appeared to accommodate mutations which lead to either early stop codons or other conformations of the tertiary protein structures affecting the antibody-epitope binding. The results of this study are of much interest as high-resolution melting analysis proved to be a reliable and rapid genotyping/scanning method for mutation detection of SLCO1B3 gene.
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Affiliation(s)
- Lampri Evangeli
- 1 Cancer Biobank Center, University of Ioannina, Ioannina, Greece
| | - Sainis Ioannis
- 1 Cancer Biobank Center, University of Ioannina, Ioannina, Greece
| | - Kounnis Valentinos
- 1 Cancer Biobank Center, University of Ioannina, Ioannina, Greece.,2 Hypoxia and Angiogenesis Group, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John, Radcliffe Hospital
| | - Mitselou Antigony
- 4 Department of Forensic Pathology, University of Ioannina, Ioannina, Greece
| | - Ioachim Elli
- 3 Department of Pathology, "G. Hatzikosta" General Hospital, Ioannina, Greece
| | - Hatzimichael Eleftheria
- 1 Cancer Biobank Center, University of Ioannina, Ioannina, Greece.,5 Department of Hematology, Medical School, University of Ioannina, Ioannina, Greece
| | - Galani Vasiliki
- 6 Departments of Embryology, Histology and Anatomy, University of Ioannina, Ioannina, Greece
| | - Briasoulis Evangelos
- 1 Cancer Biobank Center, University of Ioannina, Ioannina, Greece.,5 Department of Hematology, Medical School, University of Ioannina, Ioannina, Greece
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Nair D, Dhangar S, Shanmukhaiah C, Vundinti BR. Association of genetic polymorphisms of the ABCG2, ABCB1, SLCO1B3 genes and the response to Imatinib in chronic myeloid leukemia patients with chronic phase. Meta Gene 2017. [DOI: 10.1016/j.mgene.2016.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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8
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Kagaya H, Niioka T, Saito M, Inoue T, Numakura K, Habuchi T, Satoh S, Miura M. Effect of hepatic drug transporter polymorphisms on the pharmacokinetics of mycophenolic acid in patients with severe renal dysfunction before renal transplantation. Xenobiotica 2016; 47:916-922. [PMID: 27616538 DOI: 10.1080/00498254.2016.1235742] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. The objective of this study was to examine the association of UGT1A9, SLCO, and ABCC polymorphisms with mycophenolic acid (MPA) pharmacokinetics in ABO blood type (ABO) incompatible patients with severe renal dysfunction pre-transplantation. 2. In all patients, on day 14 after beginning mycophenolate mofetil (MMF) treatment (1 week before transplantation) and on day 28 after renal transplantation, samples were collected just prior to and 1, 2, 3, 4, 6, 9, and 12 h after oral MMF administration. 3. The median dose-adjusted AUC0-12 of MPA after renal transplantation was significantly lower than before transplantation (57.9 versus 76.5 μg h/mL, respectively, p = 0.002). 4. Although the enterohepatic circulation of MPA pre-transplantation was extremely high (57.6%), this level was significantly reduced after renal transplantation (34.6%). 5. In the multivariate analysis, pre-transplantation, patients with the SLCO1B3 334T allele (p = 0.003), higher alanine aminotransferase (p = 0.002), and lower body weight were independently predictive for a higher dose-adjusted AUC0-12 of MPA. 6. In patients with severe renal dysfunction pre-transplantation, MPA is excreted mainly to bile from the liver, and as a consequence, the SLCO1B3 334T > G polymorphism was found to be significantly associated with MPA exposure.
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Affiliation(s)
- Hideaki Kagaya
- a Department of Pharmacy , Akita University Hospital , Akita , Japan
| | - Takenori Niioka
- a Department of Pharmacy , Akita University Hospital , Akita , Japan
| | - Mitsuru Saito
- b Department of Urology , Akita University School of Medicine , Akita , Japan , and
| | - Takamitsu Inoue
- b Department of Urology , Akita University School of Medicine , Akita , Japan , and
| | - Kazuyuki Numakura
- b Department of Urology , Akita University School of Medicine , Akita , Japan , and
| | - Tomonori Habuchi
- b Department of Urology , Akita University School of Medicine , Akita , Japan , and
| | - Shigeru Satoh
- c Center for Kidney Disease and Transplantation, Akita University Graduate School of Medicine , Akita , Japan
| | - Masatomo Miura
- a Department of Pharmacy , Akita University Hospital , Akita , Japan
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9
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de Lima LT, Bueno CT, Vivona D, Hirata RDC, Hirata MH, Hungria VTDM, Chiattone CS, Zanichelli MA, Chauffaille MDLLF, Guerra-Shinohara EM. Relationship between SLCO1B3 and ABCA3 polymorphisms and imatinib response in chronic myeloid leukemia patients. ACTA ACUST UNITED AC 2014; 20:137-42. [PMID: 25056761 DOI: 10.1179/1607845414y.0000000181] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Genetic variations in membrane transporters may contribute to imatinib mesylate (IM) resistance in chronic myeloid leukemia (CML). Objective To investigate the relationship between SLCO1B3, SLCO1A2, and ABCA3 polymorphisms and IM response in CML patients. METHODS Patients in chronic phase CML (N = 118) were studied. All patients were treated with a standard dose of IM (400 mg/day) and classified into one of the two groups according to their responses. Major molecular response (MMR) and complete molecular response (CMR) were evaluated. Criteria for response failure were established according to European LeukemiaNet (2009). Analysis of the SLCO1B3 c.334T > G (rs4149117) and c.699G > A (rs7311358), SLCO1A2 c.516A > C (rs11568563) and c.-62-361G > A (rs3764043), and ABCA3 c.1755C > G (rs323043) and c.4548-191C > A (rs150929) polymorphisms was carried out by real-time polymerase chain reaction. RESULTS SLCO1A2 and ABCA3 polymorphisms have similar frequencies between responders and non-responders. SLCO1B3 699GG and 344TT genotypes were more frequent in the responder group (63.8%) than in the non-responder group (44.7%, P = 0.042). Furthermore, carriers of 699GA/AA and 334TG/GG genotypes presented a higher probability of not responding to the standard dose of IM (odds ratio: 2.17; 95% confidence interval: 1.02-4.64, P = 0.04). Poor CMR for ABCA3 4548-91C > A was observed in patients with the CC/CA genotype when compared to AA carriers in the responder group (P = 0.014). CONCLUSIONS SLCO1B3 699GG and 344TT genotypes are associated with non-response to IM, while ABCA3 4548-91 CC/CA genotypes are related to poor CMR in CML patients treated with standard-dose imatinib.
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MESH Headings
- ATP-Binding Cassette Transporters/genetics
- Adult
- Alleles
- Antineoplastic Agents/therapeutic use
- Female
- Fusion Proteins, bcr-abl/genetics
- Gene Frequency
- Genotype
- Humans
- Imatinib Mesylate/therapeutic use
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Leukemia, Myeloid, Chronic-Phase/drug therapy
- Leukemia, Myeloid, Chronic-Phase/genetics
- Male
- Middle Aged
- Organic Anion Transporters/genetics
- Organic Anion Transporters, Sodium-Independent/genetics
- Polymorphism, Genetic
- Polymorphism, Single Nucleotide
- Protein Kinase Inhibitors/therapeutic use
- Solute Carrier Organic Anion Transporter Family Member 1B3
- Treatment Outcome
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10
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Okubo H, Ando H, Kokubu S, Miyazaki A, Watanabe S, Fujimura A. Polymorphisms in the organic anion transporting polypeptide genes influence liver parenchymal enhancement in gadoxetic acid-enhanced MRI. Pharmacogenomics 2014; 14:1573-82. [PMID: 24088128 DOI: 10.2217/pgs.13.132] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM This study aimed to investigate whether genetic polymorphisms of the organic anion transporting polypeptides influence hepatic enhancement in gadoxetic acid-enhanced MRI. PATIENTS & METHODS We analyzed the genotypes of SLCO1B1 388A>G, SLCO1B1 521T>C, SLCO1B3 334T>G and NR1H4 -1G>T and calculated the mean quantitative liver-spleen contrast ratio, as an index of liver parenchymal enhancement, in 226 patients with liver disease. RESULTS Multiple linear regression analysis using the mean quantitative liver-spleen contrast ratio as the dependent variable revealed that not only Child-Pugh score, but also SLCO1B1*1b haplotype (β = 0.12; p = 0.04), were significant predictors of liver parenchymal enhancement. In addition, SLCO1B3 334T>G (β = -0.18; p = 0.03) was a significant predictor when the data were analyzed in a subgroup of 117 patients, excluding the carriers of NR1H4 -1G>T, who reportedly exhibit reduced transcriptional activity of SLCO1B3. CONCLUSION These genetic variants, as well as hepatic function, may contribute to individual differences in hepatic enhancement with gadoxetic acid.
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Affiliation(s)
- Hironao Okubo
- Department of Gastroenterology, Juntendo University Nerima Hospital, Tokyo, Japan
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11
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Fujimoto N, Kubo T, Inatomi H, Bui HTT, Shiota M, Sho T, Matsumoto T. Polymorphisms of the androgen transporting gene SLCO2B1 may influence the castration resistance of prostate cancer and the racial differences in response to androgen deprivation. Prostate Cancer Prostatic Dis 2013; 16:336-40. [PMID: 23896625 DOI: 10.1038/pcan.2013.23] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 06/01/2013] [Accepted: 06/26/2013] [Indexed: 02/02/2023]
Abstract
BACKGROUND Organic anion-transporting polypeptides (OATPs) encoded by SLCO mediate the cellular uptake of many compounds, including androgens. SLCO1B3 and SLCO2B1 are polymorphic, and single-nucleotide polymorphisms of those genes alter androgen transport efficiency. We aimed to investigate the association between genetic variations in SLCOs and the progression to castration-resistant prostate cancer (CRPC). METHODS We studied the progression to CRPC for the SLCO1B3 rs4149117 and SLCO2B1 rs12422149 genotypes in 87 prostate cancer patients who received androgen deprivation therapy (ADT). Data were analyzed using the χ(2) test, Kaplan-Meier survival analysis and Cox proportional hazard model. RESULTS SLCO3B1 genotypes were not significantly associated with the time to progression (TTP); however, patients carrying the active androgen transport SLCO2B1 genotype (GG allele) exhibited a median TTP that was 7 months shorter than that of patients with impaired androgen-transporting activity SLCO2B1 polymorphisms (GA/AA alleles) (10.0 vs 17.0 months, P=0.004). Active androgen transport genotypes of SLCO2B1 (GG allele) occurred more frequently in African and Caucasian populations than in Japanese and Han Chinese populations (P<0.001). CONCLUSIONS These data suggest that SLCO2B1 rs12422149 variants could provide prognostic value for prostate cancer patients treated with ADT and influence ethnic differences in response to ADT. Active androgen import may be one of the underlying mechanisms of resistance to ADT, and androgen-transporting systems could provide novel biomarkers and targets for CRPC treatment.
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Affiliation(s)
- N Fujimoto
- Department of Urology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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12
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Bedewy AML, El-Maghraby SM. Do SLCO1B3 (T334G) and CYP3A5*3 polymorphisms affect response in Egyptian chronic myeloid leukemia patients receiving imatinib therapy? ACTA ACUST UNITED AC 2013; 18:211-6. [PMID: 23394475 DOI: 10.1179/1607845412y.0000000067] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Imatinib has so far been the first-choice treatment in chronic myeloid leukemia (CML) with excellent results. However, only a proportion of patients achieve major molecular response. Hence, the need to find whether there are some factors that affect the response to treatment is essential. This study aimed to investigate the allele and genotype frequencies of single nucleotide polymorphisms (SNPs) of SLCO1B3 (T334G) and CYP3A5*3 in CML patients undergoing imatinib treatment and to determine whether SNPs of these two genes could predict the response of imatinib therapy in CML patients. SUBJECTS AND METHODS We investigated SLCO1B3 (T334G) and CYP3A5*3 polymorphisms by Polymerase Chain Reaction-restriction fragment length polymorphism in 86 Philadelphia positive newly diagnosed Egyptian CML patients (78 patients in chronic phase and 8 patients in accelerated phase). All patients received imatinib therapy and were followed for at least one and half years. The response to imatinib therapy was evaluated by recording the hematological response, cytogenetic response, and molecular response according to the European Leukemia Net criteria. RESULTS This study included 86 Philadelphia positive newly diagnosed CML patients, 78 in the early chronic phase and 8 in the accelerated phase. In the chronic phase patients, no association between SLCO1B3 (T334G) exon 3 polymorphism and response to imatinib therapy was detected (P = 0.938) while CYP3A5*3 gene polymorphism was associated with inferior outcome (P < 0.001). In the group of accelerated phase patients, the SLCO1B3 polymorphic variants (TG) and (GG) were detected equally with none of the patients in this group having the homozygous wild form (TT). The homozygous state for the CYP3A5*3 allele was the most frequent (50%) and the homozygous state for the CYP3A5*1 allele was the least frequent (12.5%) in this group. CONCLUSION CYP3A5*3 polymorphism was associated with imatinib efficacy while the SNP SLCO1B3 (T334G) was not associated with the response to imatinib treatment in Egyptian patients with CML in chronic phase. These results prompt us to explore the effect of CYP3A5*3 in CML patients taking imatinib in a larger scale study.
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Affiliation(s)
- Ahmed M L Bedewy
- Department of Hematology, Medical Research Institute, Alexandria University, Alexandria, Egypt.
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13
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Boivin AA, Cardinal H, Barama A, Naud J, Pichette V, Hébert MJ, Roger M. Influence of SLCO1B3 Genetic Variations on Tacrolimus Pharmacokinetics in Renal Transplant Recipients. Drug Metab Pharmacokinet 2013; 28:274-7. [DOI: 10.2133/dmpk.dmpk-12-sh-093] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Chew SC, Sandanaraj E, Singh O, Chen X, Tan EH, Lim WT, Lee EJD, Chowbay B. Influence of SLCO1B3 haplotype-tag SNPs on docetaxel disposition in Chinese nasopharyngeal cancer patients. Br J Clin Pharmacol 2012; 73:606-18. [PMID: 21995462 DOI: 10.1111/j.1365-2125.2011.04123.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT SLCO1B3 is an influx transporter located at the hepatocyte basolateral membrane and it is involved in the uptake of a broad range of drug substrates including docetaxel. The pharmacogenetics of SLCO1B3 is not well characterized and previous in vivo and in vitro studies reported conflicting results with regards to the functional effects of the limited number of SLCO1B3 polymorphisms that were studied. Docetaxel displays a wide interindividual variability in its pharmacokinetics and pharmacodynamics and an understanding of SLCO1B3 pharmacogenetics might provide clinical benefits in guiding docetaxel dosing. WHAT THIS STUDY ADDS The SLCO1B3 gene was comprehensively screened in the local healthy Asian populations (n= 168). A strong linkage disequilibrium pattern was detected across a total of 88 polymorphisms and 15 haplotype-tag SNPs (htSNPs) were identified. These htSNPs were profiled in a cohort of Chinese nasopharyngeal cancer (NPC) patients (n= 50). Genotypic-phenotypic analysis showed that a haplotypic construct comprising of four variants [IVS4+76G>A, 699G>A(Met233Ile), IVS12-5676A>G, and *347_*348insA] was the critical determinant of docetaxel disposition. This study suggests that the comprehensive screening and haplotypic linkage analysis of SLCO1B3 can better elucidate its pharmacogenetic effects on interpatient variability of docetaxel and other putative drug substrates. Further studies are warranted in cancer patients belonging to other ethnic groups. AIMS To completely screen the SLCO1B3 gene in three distinct healthy Asian populations (Chinese, Malay and Indian, n= 168) and investigate the influence of haplotype-tag SNPs (htSNPs) on docetaxel disposition in 50 nasopharyngeal carcinoma patients. METHODS Genomic DNA of individuals was screened for SLCO1B3 polymorphisms by direct sequencing. htSNPs were derived based on the sequence clustering algorithm and profiled in the patients. Population based genetic association analysis was performed using Haplostats package implemented in R and PLINK. RESULTS A strong linkage disequilibrium pattern was detected across a total of 88 polymorphisms and 15-htSNPs were identified. The SLCO1B3 haplotypic region comprising seven htSNPs was found to be significantly associated with docetaxel clearance (P= 0.003). Conditional haplotype analyses revealed that the haplotypic constructs comprising the IVS4+76G>A, 699G>A(Met233Ile), IVS12-5676A>G, and *347_*348insA polymorphisms were critical determinants of variability in docetaxel disposition [clearance and area under the plasma concentration-time curve (AUC(0,∞)): r(2) = 29% and 22%, respectively]. Patients harbouring the GAG*347insA haplotype were significantly associated with a 30% decrease in clearance and a 40% increase in AUC(0,∞) of docetaxel compared with patients harbouring the reference haplotype, GGA*347wt (P= 0.025 and 0.018, respectively). In contrast, a 50% higher clearance was observed in patients carrying the GAG*347wt haplotype compared with those with the reference haplotype (P= 0.002). The functional SLCO1B3 haplotypic constructs included the widely studied Met233Ile variant and *347_*348insA located in the putative miR-890 binding site in the 3'-untranslated region which may influence the transport characteristics of SLCO1B3. CONCLUSIONS This study highlights the importance of SLCO1B3 polymorphic variations in influencing docetaxel disposition in nasopharyngeal carcinoma patients.
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Affiliation(s)
- Sin Chi Chew
- Laboratory of Clinical Pharmacology, Division of Medical Sciences, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore
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Shiotani A, Murao T, Sakakibara T, Tarumi KI, Manabe N, Kamada T, Kusunoki H, Haruma K. Association of SLCO1B1 1b with peptic ulcer amongst Japanese patients taking low-dose aspirin. Dig Liver Dis 2012; 44:201-5. [PMID: 22088425 DOI: 10.1016/j.dld.2011.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 09/07/2011] [Accepted: 10/07/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND In the recent case-control study, we showed an inverse association between peptic ulcer and angiotensin type 1 receptor (AT1R) blockers (ARBs) or HMG-Co A reductase inhibitors (statins). The aim was to evaluate whether the genotypes of uptake and efflux transporters of ARBs and statins relate to the presence of peptic ulcer and/or ulcer bleeding associated with aspirin use. METHODS Patients taking 100mg of enteric-coated aspirin for cardiovascular diseases who also participated in endoscopic surveillance were studied. SLCO1B, ABCC2, ABCG2, and MDR1 genotypes were determined by PCR or PCR-RFLP. RESULTS 492 patients enrolled including 78 with peptic ulcer. The frequencies of the SLCO1B1 521TT genotype were significantly higher in the ulcer group (p=0.006) compared to the controls. After adjustment for significant factors, the SLCO1B1 1b haplotype was significantly associated with peptic ulcer (OR, 3.64; 95% CI, 1.81-7.29). CONCLUSIONS SLCO1B1 1b haplotype may identify patients at increased risk for aspirin-induced peptic ulcer.
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Affiliation(s)
- Akiko Shiotani
- Department of Internal Medicine, Kawasaki Medical School, Okayama, Japan.
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Nakanishi T, Tamai I. Genetic polymorphisms of OATP transporters and their impact on intestinal absorption and hepatic disposition of drugs. Drug Metab Pharmacokinet 2011; 27:106-21. [PMID: 22185815 DOI: 10.2133/dmpk.dmpk-11-rv-099] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
There is convincing evidence that many organic anion transporting polypeptide (OATP) transporters influence the pharmacokinetics and pharmacological efficacy of their substrate drugs. Each OATP family member has a unique combination of tissue distribution, substrate specificity and mechanisms of gene expression. Among them, OATP1B1, OATP1B3 and OATP2B1 have been considered as critical molecular determinants of the pharmacokinetics of a variety of clinically important drugs. Liver-specific expression of OATP1B1 and OATP1B3 contributes to the hepatic uptake of drugs from the portal vein, and OATP2B1 may alter their intestinal absorption as well as hepatic extraction. Accordingly, changes in function and expression of these three OATPs owing to genetic polymorphisms may lead to altered pharmacological effects, including decreased drug efficacy and increased risk of adverse effects. Association of genetic polymorphisms in OATP genes with alterations in the pharmacokinetic properties of their substrate drugs has been reported; however, there still exists a degree of discordance between the reported outcomes in different clinical settings. For better understanding of the clinical relevance of genetic polymorphisms of OATP1B1, OATP1B3 and OATP2B1, the present review focuses on the association of the genotypes of these OATPs with in vitro activity changes and in vivo clinical outcomes of substrate drugs.
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Affiliation(s)
- Takeo Nakanishi
- Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Pharmacy, Kanazawa University, Kanazawa, Japan
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Chae YJ, Lee KR, Noh CK, Chong S, Kim DD, Shim CK, Chung SJ. Functional consequences of genetic variations in the human organic anion transporting polypeptide 1B3 (OATP1B3) in the Korean population. J Pharm Sci 2011; 101:1302-13. [PMID: 22147445 DOI: 10.1002/jps.23005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 10/18/2011] [Accepted: 11/11/2011] [Indexed: 01/09/2023]
Abstract
The objectives of this study were to investigate the allele frequencies and linkage disequilibrium (LD) in the organic anion transporting polypeptide 1B3 (OATP1B3) in the Korean population and to examine the functional consequences. Using samples from 48 Koreans, direct sequencing was carried out to determine the allele frequencies and LD of OATP1B3 in a representative Korean population. Thirty-six genetic variations in the transporter were found in Koreans; among them, five undocumented variations (i.e.,-6436G>C in the 5'-upstream region, 26A>C and 586A>G in the protein coding region, and IVS6-72A>T and IVS12-80A>T in intron regions) were identified. In the upstream region, -5035G>A was found to have lowered gene expression, as determined by a reporter gene assay, suggesting that this variation reduces the expression of OATP1B3 in humans. The functional relevance of the genetic variations in the protein coding region was determined by an uptake study involving representative substrates in human embryonic kidney 293 cells expressing wild type or variant forms. Variations involving 699G>A showed a reduced uptake activity for testosterone, but not for estradiol 17β-d-glucuronide or methotrexate, indicating that the functional impact of the variations is substrate specific. Considering the kinetic relevance of OATP1B3, the functionally affected variations may be therapeutically important.
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Affiliation(s)
- Yoon-Jee Chae
- Department of Pharmaceutics, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Korea
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Pharmacokinetic and pharmacogenomic profiles of telmisartan after the oral microdose and therapeutic dose. Pharmacogenet Genomics 2011; 21:495-505. [DOI: 10.1097/fpc.0b013e3283489ce2] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Monitoring of Mycophenolic Acid Predose Concentrations in the Maintenance Phase More Than One Year After Renal Transplantation. Ther Drug Monit 2011; 33:295-302. [DOI: 10.1097/ftd.0b013e3182197e38] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Identification of novel functional organic anion-transporting polypeptide 1B3 polymorphisms and assessment of substrate specificity. Pharmacogenet Genomics 2011; 21:103-14. [PMID: 21278621 DOI: 10.1097/fpc.0b013e328342f5b1] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The uptake carrier organic anion-transporting polypeptide 1B3 (OATP1B3, gene SLCO1B3) is involved in the hepatic clearance of xenobiotics including statins, taxanes, and mycophenolic acid. We thought to assess the SLCO1B3 coding region for yet unidentified polymorphisms and to analyze their functional relevance. METHODS We used DNA of ethnically diverse individuals for polymerase chain reaction, and determined polymorphisms by sequencing or temperature-dependent capillary electrophoresis. We then created variant OATP1B3 expression plasmids by site-directed mutagenesis, which were transiently expressed and functionally characterized in human cervical carcinoma (HeLa) cells using radiolabeled substrates. RESULTS We identified six nonsynonymous polymorphisms including novel variants such as 439A>G (Thr147Ala), 767G>C (Gly256Ala), 1559A>C (His520Pro), and 1679T>C (Val560Ala). Allelic frequencies occurred to be ethnicity-dependent, with the latter observed only in African-Americans (3.6%). After expression in HeLa cells, His520Pro, Val560Ala, and Met233Ile or Met233Ile_Ser112Ala haplotype variants showed decreased uptake activity compared with wild type for cholecystokinin-8 and rosuvastatin, but not for atorvastatin. Kinetic cholecystokinin-8 analysis showed reduced Vmax without altering Km. His520Pro and Val560Ala exhibited decreased total and plasma membrane protein expressions. Val560 mapped onto a structural model of OATP1B3 showed that this is a key region for substrate-transporter interaction. His520 resides in a predicted extracellular region thought to be critical to the pH-dependent component of OATP1B3 activity. Loss of activity at pH 7.4 and 8.0 relative to pH 6.5 was significantly greater for the Pro520 variant. CONCLUSION OATP1B3 polymorphisms that result in altered expression, substrate specificity, and pH-dependent activity may be of potential relevance to hepatic clearance of substrate drugs in vivo.
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Generaux GT, Bonomo FM, Johnson M, Mahar Doan KM. Impact ofSLCO1B1(OATP1B1) andABCG2(BCRP) genetic polymorphisms and inhibition on LDL-C lowering and myopathy of statins. Xenobiotica 2011; 41:639-51. [DOI: 10.3109/00498254.2011.562566] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Akamine Y, Miura M, Sunagawa S, Kagaya H, Yasui-Furukori N, Uno T. Influence of drug-transporter polymorphisms on the pharmacokinetics of fexofenadine enantiomers. Xenobiotica 2011; 40:782-9. [PMID: 20839930 DOI: 10.3109/00498254.2010.515318] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This study investigated an association of SLCO (encoding organic anion-transporting polypeptides (OATP), 1B1, 1B3, and 2B1), ABCB1 (P-glycoprotein (P-gp)), ABCC2 multidrug resistance protein 2 (MRP2), and ABCG2 (breast cancer resistance protein (BCRP)) polymorphisms with fexofenadine enantiomer pharmacokinetics after an oral dose of fexofenadine (60 mg) in 24 healthy subjects. The area under the plasma concentration-time curve (AUC(0-24)) of S-fexofenadine, but not R-fexofenadine, was significantly lower in subjects with a SLCO2B1*1/*1 allele as compared to subjects with a *3 allele (p = 0.031). The AUC(0-24) of S-fexofenadine was significantly lower in subjects with a wild-type combination of SLCO2B1*1/*1/ABCB1 1236CC, SLCO2B1*1/*1/ABCB1 3435CC, SLCO2B1*1/*1/ABCC2 -24CC, and ABCB1 1236CC/3435CC/ABCC2 -24CC compared to other polymorphic genotypes (p = 0.010, 0.033, 0.022, and 0.036, respectively), whereas there was no difference in the AUC(0-24) between the SLCO1B1/1B3 plus ABCB1 and ABCC2 groups. The pharmacokinetic properties of S-fexofenadine are affected by a single polymorphism of SLCO2B1 in combination with several polymorphisms of ABCB1 C1236T, C3435T, and ABCC2 C-24T. However, the ABCG2 polymorphism was not associated with fexofenadine pharmacokinetics. These findings suggest that a combination of multiple transporters, including OATP, P-gp, and MRP2, reacts strongly to fexofenadine exposure in the small intestine and liver, resulting in different dispositions of both enantiomers.
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Affiliation(s)
- Yumiko Akamine
- Department of Hospital Pharmacy, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
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Laitinen A, Niemi M. Frequencies of single-nucleotide polymorphisms of SLCO1A2, SLCO1B3 and SLCO2B1 genes in a Finnish population. Basic Clin Pharmacol Toxicol 2011; 108:9-13. [PMID: 20560925 DOI: 10.1111/j.1742-7843.2010.00605.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Organic anion transporting polypeptides 1A2, 1B3 and 2B1 (OATP1A2, OATP1B3 and OATP2B1) are expressed in tissues important for pharmacokinetics, and mediate the cellular influx of various endogenous and exogenous compounds, including drugs. The aim of the study was to investigate the frequencies of single-nucleotide polymorphisms (SNP) of SLCO1A2, SLCO1B3 and SLCO2B1 in a Finnish population. The distribution of nine non-synonymous SLCO1A2, SLCO1B3 and SLCO2B1 SNPs was determined in 552 healthy Finnish Caucasian participants by using allelic discrimination with TaqMan 5'nuclease assays. The SLCO1A2 c.38T>C (p.Ile13Thr) and c.516C>T (p.Glu172Asp) SNPs were found with variant allele frequencies of 12.9% (95% confidence interval: 11.0-15.0) and 7.2% (5.8-8.8). The variant allele frequencies of SLCO1B3 c.334T>G (p.Ser112Ala), c.699G>A (p.Met233Ile) and c.767G>C (p.Gly256Ala) were 77.0% (74.4-79.4), 76.9% (74.3-79.3) and 12.8% (10.9-14.9), respectively. None of the participants carried the SLCO1B3 c.1309G>A (p.Gly437Ser) SNP. The SLCO2B1 c.601G>A (p.Val201Met), c.935G>A (p.Arg312Gln) and c.1457C>T (p.Ser486Phe) variant allele frequencies were 2.1% (1.4-3.1), 13.6% (11.7-15.7) and 2.8% (2.0-4.0), respectively. The SLCO1B3 c.334T>G and c.699G>A SNPs were in a nearly complete linkage disequilibrium (r² = 0.99, D' = 1.00), all other SNP pairs showed only a weak correlation. In conclusion, non-synonymous sequence variations of SLCO1A2, SLCO1B3 and SLCO2B1 occur at high frequencies in the Finnish population.
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Affiliation(s)
- Alli Laitinen
- Department of Clinical Pharmacology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
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Taguchi M, Ichida F, Hirono K, Miyawaki T, Yoshimura N, Nakamura T, Akita C, Nakayama T, Saji T, Kato Y, Horiuchi I, Hashimoto Y. Pharmacokinetics of Bosentan in Routinely Treated Japanese Pediatric Patients with Pulmonary Arterial Hypertension. Drug Metab Pharmacokinet 2011; 26:280-7. [DOI: 10.2133/dmpk.dmpk-10-rg-113] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Influence of drug transporters and UGT polymorphisms on pharmacokinetics of phenolic glucuronide metabolite of mycophenolic acid in Japanese renal transplant recipients. Ther Drug Monit 2010; 30:559-64. [PMID: 18695635 DOI: 10.1097/ftd.0b013e3181838063] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Mycophenolic acid (MPA) is mainly glucuronized by uridine diphosphate-glucuronosyltransferases (UGTs) into the phenolic MPA glucuronide (MPAG). MPAG is excreted by transporters such as organic anion-transporting polypeptide (gene SLCO), multidrug resistance protein 2 (gene ABCC2), breast cancer resistance protein (BCRP, gene ABCG2) or P-glycoprotein (gene ABCB1). This study investigated the association of UGTs, SLCOs, ABCB1, ABCC2, and ABCG2 polymorphisms with MPAG pharmacokinetics in 80 Japanese renal transplant recipients. Eighty recipients were given repeated doses of combination immunosuppressive therapy consisting of mycophenolate mofetil and tacrolimus every 12 hours at a designated time (0900 and 2100). On day 28, after renal transplantation, plasma concentrations of MPA and MPAG were measured by high-performance liquid chromatography. There were no significant differences in the area under the plasma concentration-time curve (AUC) ratio of MPAG/MPA between UGT1A1, UGT1A6, UGT1A7, UGT1A8, and UGT1A9 I399C/T genotypes. On the other hand, the median dose-adjusted AUC0-12 of MPAG in SLCO1B1 1a/1a+1a/1b+1b+1b (n = 53) and 1a/*15 + 1b/*15+*15/*15 (n = 27) were 1549 and 1134 mg.h L g, respectively (P = 0.03004 in multivariate analysis). The median dose-adjusted AUC0-12 of MPAG in SLCO1B3 334T/T+T/G (699G/G+G/A, n = 46) and 334G/G (699A/A, n = 34) was 1191 and 1580 mg.h L g, respectively (P = 0.02792 in multivariate analysis). There were no significant differences in the dose-adjusted AUC0-12 of MPAG between the ABCB1 C3435T and ABCC2 C-24T genotypes. However, the dose-adjusted AUC0-12 of MPAG was significantly lower in recipients with ABCG2 421C/A+A/A (n = 44) than in those with C/C (n = 36) (P = 0.0295). In conclusion, our findings showed that MPAG pharmacokinetics were significantly influenced by SLCO1B1 and SLCO1B3 polymorphisms and not by UGT polymorphisms. BCRP rather than multidrug resistance protein 2 seems to be the transporter associated with biliary excretion of MPAG.
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Takahashi N, Miura M, Scott SA, Kagaya H, Kameoka Y, Tagawa H, Saitoh H, Fujishima N, Yoshioka T, Hirokawa M, Sawada K. Influence of CYP3A5 and drug transporter polymorphisms on imatinib trough concentration and clinical response among patients with chronic phase chronic myeloid leukemia. J Hum Genet 2010; 55:731-7. [DOI: 10.1038/jhg.2010.98] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ieiri I, Higuchi S, Sugiyama Y. Genetic polymorphisms of uptake (OATP1B1, 1B3) and efflux (MRP2, BCRP) transporters: implications for inter-individual differences in the pharmacokinetics and pharmacodynamics of statins and other clinically relevant drugs. Expert Opin Drug Metab Toxicol 2010; 5:703-29. [PMID: 19442037 DOI: 10.1517/17425250902976854] [Citation(s) in RCA: 161] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent pharmacogenomic/pharmacogenetic studies have disclosed important roles of drug transporters in the pharmacokinetic/pharmacodynamic (PK/PD) profiles of some clinically relevant drugs. It has concurrently been explained that variations in the drug transporter genes are associated with not only inter-individual but also inter-ethnic differences in PK/PD profiles of these drugs. This review focuses on two uptake and two efflux transporters. Organic anion transporting polypeptide (OATP) 1B1 and OATP1B3 are uptake transporters, specifically expressed in the liver, and considered important for drugs, particularly as their pharmacological target organ is the liver. Two ATP-binding cassette transporters, multi-drug resistance-associated protein 2 and breast cancer resistance protein, are efflux transporters, expressed in various human tissues, and considered particularly important for intestinal drug absorption and hepatic drug elimination. All 3-hydroxyl-3-methylglutaryl-CoA reductase inhibitors (statins) except fluvastatin are substrates for OATP1B1, but hepatobiliary (canalicular) efflux transporters differ among statins. In this review, we update the pharmacogenomic/pharmacogenetic properties of these transporters and their effects on PK/PD profiles of statins and other clinically relevant drugs. In addition, we describe a physiologically-based pharmacokinetic model for predicting the effects of changes in transporter activities on systemic and hepatic exposure to pravastatin.
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Affiliation(s)
- Ichiro Ieiri
- Kyushu University, Graduate School of Pharmaceutical Sciences, Department of Clinical Pharmacokinetics, Fukuoka, Japan
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Boivin AA, Cardinal H, Barama A, Pichette V, Hébert MJ, Roger M. Organic Anion Transporting Polypeptide 1B1 (OATP1B1) and OATP1B3: Genetic Variability and Haplotype Analysis in White Canadians. Drug Metab Pharmacokinet 2010; 25:508-15. [DOI: 10.2133/dmpk.dmpk-10-sh-046] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miura M, Satoh S, Inoue K, Saito M, Habuchi T, Suzuki T. Telmisartan pharmacokinetics in Japanese renal transplant recipients. Clin Chim Acta 2009; 399:83-7. [DOI: 10.1016/j.cca.2008.09.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 09/16/2008] [Accepted: 09/16/2008] [Indexed: 11/16/2022]
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Ward P. Importance of Drug Transporters in Pharmacokinetics and Drug Safety. Toxicol Mech Methods 2008; 18:1-10. [DOI: 10.1080/15376510701795306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Zaïr ZM, Eloranta JJ, Stieger B, Kullak-Ublick GA. Pharmacogenetics of OATP (SLC21/SLCO), OAT and OCT (SLC22) and PEPT (SLC15) transporters in the intestine, liver and kidney. Pharmacogenomics 2008; 9:597-624. [PMID: 18466105 DOI: 10.2217/14622416.9.5.597] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The role of carrier-mediated transport in determining the pharmacokinetics of drugs has become increasingly evident with the discovery of genetic variants that affect expression and/or function of a given drug transporter. Drug transporters are expressed at numerous epithelial barriers, such as intestinal epithelial cells, hepatocytes, renal tubular cells and at the blood-brain barrier. Several recent studies have associated alterations in substrate uptake with the presence of SNPs. Here, we summarize the current knowledge on the functional and phenotypic consequences of genetic variation in intestinally, hepatically and renally expressed members of the organic anion-transporting polypeptide family (OATPs; SLC21/SLCO family), the organic anion and organic cation transporters (OATs/OCTs; SLC22 family) and the peptide transporter-1 (PEPT1; SLC15 family).
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Affiliation(s)
- Zoulikha M Zaïr
- University Hospital Zurich, Division of Clinical Pharmacology and Toxicology, Department of Internal Medicine, CH-8091 Zurich, Switzerland
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Hamada A, Sissung T, Price DK, Danesi R, Chau CH, Sharifi N, Venzon D, Maeda K, Nagao K, Sparreboom A, Mitsuya H, Dahut WL, Figg WD. Effect of SLCO1B3 haplotype on testosterone transport and clinical outcome in caucasian patients with androgen-independent prostatic cancer. Clin Cancer Res 2008; 14:3312-8. [PMID: 18519758 DOI: 10.1158/1078-0432.ccr-07-4118] [Citation(s) in RCA: 152] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE The organic anion transporter OATP1B3, encoded by SLCO1B3, is involved in the transport of steroid hormones. However, its role in testosterone uptake and clinical outcome of prostatic cancer is unknown. This study examined (a) the SLCO1B3 genotype in cancer cells as well as the uptake of testosterone by cells transfected with genetic variants of SLCO1B3; (b) the expression of OATP1B3 in normal prostate, benign prostatic hyperplasia, and prostatic cancer; and (c) the role of SLCO1B3 haplotype on clinical outcome of Caucasian patients with androgen-independent prostatic cancer. EXPERIMENTAL DESIGN SLCO1B3 genotype was assessed in the NCI-60 panel of tumor cells by sequencing, whereas testosterone transport was analyzed in Cos-7 cells transfected with WT, 334G, and 699A SLCO1B3 variants. OATP1B3 expression in prostatic tissues was examined by fluorescence microscopy, and the relationship between SLCO1B3 haplotypes and survival was examined in patients. RESULTS Cells transfected with wild-type (334T/699G) SLCO1B3, or with a vector containing either the 334G or 699A variants, actively transported testosterone, whereas its uptake was impaired in cells transfected with a gene carrying both 334G and 699A single nucleotide polymorphisms. Prostatic cancer overexpresses OATP1B3 compared with normal or benign hyperplastic tissue; patients with SLCO1B3 334GG/699AA haplotype showed longer median survival (8.5 versus 6.4 years; P = 0.020) and improved survival probability at 10 years (42% versus 23%; P < 0.023) than patients carrying TT/AA and TG/GA haplotypes. CONCLUSIONS The common SLCO1B3 GG/AA haplotype is associated with impaired testosterone transport and improved survival in patients with prostatic cancer.
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Affiliation(s)
- Akinobu Hamada
- Molecular Pharmacology Section, National Cancer Institute, 9000 Rockville Pike, Bethesda, MD 20892, USA
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Franke RM, Baker SD, Mathijssen RH, Schuetz EG, Sparreboom A. Influence of solute carriers on the pharmacokinetics of CYP3A4 probes. Clin Pharmacol Ther 2008; 84:704-9. [PMID: 18509328 DOI: 10.1038/clpt.2008.94] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We hypothesized that the assessment of baseline CYP3A4 activity is influenced by probe-specific differences in hepatocellular uptake mechanisms. There was no significant correlation between the erythromycin breath test (ERMBT) parameters and midazolam clearance in 30 cancer patients (R(2) < 0.01), regardless of their CYP3A5 genotype status. In cellular models overexpressing 10 different solute carriers, erythromycin uptake was significantly increased by OATP1A2 (P < 0.005) and OATP1B3 (P < 0.01). Midazolam was not a substrate for any of the tested transporters. In a separate cohort of 119 patients, 6 nonsynonymous variants in the OATP1B3 gene SLCO1B3 were identified. Individuals carrying two copies of the T allele at the 334 locus had a 2.4-fold lower value for ERMBT 1/T(max) (P = 0.001), a measure reflecting more rapid hepatic uptake. These findings suggest that differential affinities for solute carriers should be considered when selecting an appropriate phenotypic probe to allow tailored dosing of pharmaceuticals that are CYP3A4 substrates.
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Affiliation(s)
- R M Franke
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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Seithel A, Glaeser H, Fromm MF, König J. The functional consequences of genetic variations in transporter genes encoding human organic anion-transporting polypeptide family members. Expert Opin Drug Metab Toxicol 2008; 4:51-64. [PMID: 18370858 DOI: 10.1517/17425255.4.1.51] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
It is increasingly recognised that uptake transporters of the organic anion-transporting polypeptide (OATP) family play important roles in drug absorption, distribution and excretion. They are expressed in a variety of different tissues, including gut, brain, kidney and liver. Substrates of OATPs include several endogenous substances, such as bile salts and hormones, and drugs such as HMG-CoA reductase inhibitors (e.g., pravastatin), cytotoxic drugs and antibiotics. Recent advances in the pharmacogenetics of OATPs have demonstrated that variations (polymorphisms) in genes encoding human OATPs can explain parts of the interindividual variability in the pharmacokinetics of drugs and, thus, contribute to the interethnic and interindividual variability in drug response. This review focuses on consequences of these genetic variations and summarises in vivo as well as in vitro analyses demonstrating the impact of polymorphisms in genes encoding OATPs on transport and pharmacokinetics of drugs.
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Affiliation(s)
- Annick Seithel
- Friedrich-Alexander-University Erlangen-Nuremberg, Institute of Experimental and Clinical Pharmacology and Toxicology, Fahrstrasse 17, 91054 Erlangen, Germany
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Tsujimoto M, Dan Y, Hirata S, Ohtani H, Sawada Y. Influence of SLCO1B3 Gene Polymorphism on the Pharmacokinetics of Digoxin in Terminal Renal Failure. Drug Metab Pharmacokinet 2008; 23:406-11. [DOI: 10.2133/dmpk.23.406] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miura M, Satoh S, Inoue K, Kagaya H, Saito M, Inoue T, Suzuki T, Habuchi T. Influence of SLCO1B1, 1B3, 2B1 and ABCC2 genetic polymorphisms on mycophenolic acid pharmacokinetics in Japanese renal transplant recipients. Eur J Clin Pharmacol 2007; 63:1161-9. [PMID: 17906856 DOI: 10.1007/s00228-007-0380-7] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2007] [Accepted: 08/27/2007] [Indexed: 01/14/2023]
Abstract
OBJECTIVE We investigated the association between mycophenolic acid (MPA) pharmacokinetics and organic anion-transporting polypeptide (OATP/SLCO)1B1, 1B3, 2B1 and multidrug resistance-association protein 2 (MRP2/ABCC2) genetic polymorphisms and diarrhea. METHODS Eighty-seven renal allograft recipients were given repeated doses of mycophenolate mofetil every 12 h at a designated time (09:00 and 21:00). The pharmacokinetics of MPA were analyzed on day 28 posttransplantation. RESULTS The dose-adjusted area under the cuve (AUC)(6-12) of MPA, an estimate of enterohepatic recirculation, was greater in SLCO1B3 T334G GG (or G699A AA) carriers than in TT carriers (or G699A GG) (40 vs. 25 ng h/mL per milligram, respectively, P = 0.0497). None of the polymorphism of SLCO1B1, SLCO2B1, or ABCC2 C-24T were associated with MPA pharmacokinetics or diarrhea. However, the oral clearance of MPA in recipients having both the SLCO1B3 T334G GG genotype and the ABCC2 C-24T T allele was significantly lower than in patients having both the SLCO1B3 T334G TT and ABCC2 C-24T CC genotypes (0.15 vs. 0.18 L/h per kilogram, respectively, P = 0.0010). CONCLUSIONS MPA excretion into bile in patients with SLCO1B3 T334G GG (or G699A AA) was higher than in those with T334G TT (or G699A GG), probably resulting in a higher AUC(6-12) value of MPA. MPA uptake into hepatocytes and excretion into bile at first pass may be greater in SLCO1B3 T334G GG carriers than in TT carriers. In addition, the ABCC2 C-24T polymorphism also seems to be associated with enhanced enterohepatic circulation of MPA. The SLCO1B3 and ABCC2 transporters rather than uridine diphosphate-glucuronosyltransferase (UGT) may partly affect interindividual variety in plasma MPA concentration.
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Affiliation(s)
- Masatomo Miura
- Department of Pharmacy, Akita University Hospital, Akita, Japan
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Smith NF, Marsh S, Scott-Horton TJ, Hamada A, Mielke S, Mross K, Figg WD, Verweij J, McLeod HL, Sparreboom A. Variants in the SLCO1B3 Gene: Interethnic Distribution and Association with Paclitaxel Pharmacokinetics. Clin Pharmacol Ther 2007; 81:76-82. [PMID: 17186002 DOI: 10.1038/sj.clpt.6100011] [Citation(s) in RCA: 125] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To explore retrospectively the relationships between paclitaxel pharmacokinetics and three known, non-synonymous single-nucleotide polymorphisms (SNPs) in SLCO1B3, the gene encoding organic anion transporting polypeptide (OATP)1B3. Accumulation of [(3)H]paclitaxel was studied in Xenopus laevis oocytes injected with cRNA of Oatp1b2, OATP1A2, OATP1B1, OATP1B3, OAT1, OAT3, OCT1, and NTCP. The 334T>G (Ser112Ala), 699G>A (Met233Ile), and 1564G>T (Gly522Cys) loci of SLCO1B3 were screened in 475 individuals from five ethnic groups and 90 European Caucasian cancer patients treated with paclitaxel. Only OATP1B3 was capable of transporting paclitaxel to a significant extent (P=0.003). The 334T>G and 699G>A SNPs were less common in the African-American and Ghanaian populations (P<0.000001). Paclitaxel pharmacokinetics were not associated with the studied SNPs or haplotypes (P>0.3). The studied SNPs in SLCO1B3 appear to play a limited role in the disposition of paclitaxel, although their clinical significance in other ethnic populations remains to be investigated.
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Affiliation(s)
- N F Smith
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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