101
|
Peng R, Zhang H, Zhang Y, Wei DY. RETRACTED ARTICLE: ABCB1 (1199G>A) polymorphism regulates the efficacy of docetaxel and imatinib mesylate in HEK293 recombinant cell lines. Cancer Chemother Pharmacol 2015. [PMCID: PMC4540773 DOI: 10.1007/s00280-015-2802-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Rui Peng
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060 China
| | - Hong Zhang
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060 China
| | - Ying Zhang
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060 China
| | - Dan-yun Wei
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, 430060 China
| |
Collapse
|
102
|
Atil B, Berger-Sieczkowski E, Bardy J, Werner M, Hohenegger M. In vitro and in vivo downregulation of the ATP binding cassette transporter B1 by the HMG-CoA reductase inhibitor simvastatin. Naunyn Schmiedebergs Arch Pharmacol 2015; 389:17-32. [PMID: 26319048 PMCID: PMC4700083 DOI: 10.1007/s00210-015-1169-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 08/18/2015] [Indexed: 12/20/2022]
Abstract
Extrusion of chemotherapeutics by ATP-binding cassette (ABC) transporters like ABCB1 (P-glycoprotein) represents a crucial mechanism of multidrug resistance in cancer therapy. We have previously shown that the 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor simvastatin directly inhibits ABCB1, alters the glycosylation of the transporter, and enhances the intracellular accumulation of doxorubicin with subsequent anti-cancer action. Here, we show that simvastatin reduces endogenous dolichol levels and ABCB1 in human neuroblastoma SH-SY5Y cells. Coapplication with dolichol prevents the downregulation of the ABCB1 transporter. Importantly, dolichol also attenuated simvastatin-induced apoptosis, unmasking involvement of unfolded protein response. Direct monitoring of the fluorescent fusion protein YFP-ABCB1 further confirms concentration-dependent reduction of ABCB1 in HEK293 cells by simvastatin. In simvastatin-treated murine xenografts, ABCB1 was also reduced in the liver and rhabdomyosarcoma but did not reach significance in neuroblastoma. Nevertheless, the in vivo anti-cancer effects of simvastatin are corroborated by increased apoptosis in tumor tissues. These findings provide experimental evidence for usage of simvastatin in novel chemotherapeutic regimens and link dolichol depletion to simvastatin-induced anti-cancer activity.
Collapse
Affiliation(s)
- Bihter Atil
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Währingerstraße 13A, 1090, Vienna, Austria
| | | | - Johanna Bardy
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Währingerstraße 13A, 1090, Vienna, Austria.,Department of Internal Medicine, Hanuschkrankenhaus, Heinrich-Collin-Strasse 30, 1140, Vienna, Austria
| | - Martin Werner
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Währingerstraße 13A, 1090, Vienna, Austria.,Department of Internal Medicine, Hanuschkrankenhaus, Heinrich-Collin-Strasse 30, 1140, Vienna, Austria
| | - Martin Hohenegger
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Währingerstraße 13A, 1090, Vienna, Austria.
| |
Collapse
|
103
|
Kummu M, Sieppi E, Koponen J, Laatio L, Vähäkangas K, Kiviranta H, Rautio A, Myllynen P. Organic anion transporter 4 (OAT 4) modifies placental transfer of perfluorinated alkyl acids PFOS and PFOA in human placental ex vivo perfusion system. Placenta 2015; 36:1185-91. [PMID: 26303760 DOI: 10.1016/j.placenta.2015.07.119] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 07/06/2015] [Accepted: 07/07/2015] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Perfluorinated alkyl acids (PFAAs) are widely used in industry and consumer products. Pregnant women are exposed to PFAAs and their presence in umbilical cord blood represents fetal exposure. Interestingly, PFAAs are substrates for organic anion transporters (OAT) of which OAT4 is expressed in human placenta. METHODS To evaluate the contribution of OAT4 and ATP-binding cassette transporter G2 (ABCG2) proteins in the transplacental transfer of perfluoro octane sulfonate (PFOS) and perfluoro octanoate (PFOA) an ex vivo dual recirculating human placental perfusion was used. Altogether 8 placentas from healthy mothers with uncomplicated pregnancies were successfully perfused. RESULTS Both PFOS and PFOA crossed the placenta as suggested by in vivo data in the literature. The expression of OAT4 and ABCG2 proteins were studied by immunoblotting and correlation with the transfer index %(TI %) of PFOS and PFOA at 120 and 240 min (n = 4) was studied. The expression of OAT4 was in negative correlation with TI % of PFOA (R(2) = 0.92, p = 0.043) and PFOS (R(2) = 0.99, p = 0.007) at 120 min while at 240 min the correlation was statistically significant only with PFOA. The expression of ABCG2 did not correlate with TI% of PFOS or PFOA. DISCUSSION Data obtained in this study suggest the involvement of OAT4 in placental passage of PFAAs. Placental passage of PFOS and PFOA is modified by the transporter protein OAT4 but not by ABCG2. This is the first study indicating that OAT4 may decrease the fetal exposure to PFAAs and protect the fetus after maternal exposure to PFAAs but further studies are needed to confirm our findings.
Collapse
Affiliation(s)
- M Kummu
- Research Group of Biomedicine, Pharmacology and Toxicology, University of Oulu, Finland; Center for Arctic Medicine, Thule Institute, University of Oulu, Oulu, Finland
| | - E Sieppi
- Research Group of Biomedicine, Pharmacology and Toxicology, University of Oulu, Finland; Center for Arctic Medicine, Thule Institute, University of Oulu, Oulu, Finland
| | - J Koponen
- THL National Institute for Health and Welfare, Department of Environmental Health, Kuopio, Finland
| | - L Laatio
- Department of Gynecology and Obstetrics, Oulu University Hospital, Oulu, Finland
| | - K Vähäkangas
- Faculty of Health Sciences, School of Pharmacy/Toxicology, University of Eastern Finland, Kuopio, Finland
| | - H Kiviranta
- THL National Institute for Health and Welfare, Department of Environmental Health, Kuopio, Finland
| | - A Rautio
- Center for Arctic Medicine, Thule Institute, University of Oulu, Oulu, Finland
| | - P Myllynen
- Center for Arctic Medicine, Thule Institute, University of Oulu, Oulu, Finland; Nordlab Oulu, Oulu, Finland.
| |
Collapse
|
104
|
Zhang W, Meng Y, Liu N, Wen XF, Yang T. Insights into Chemoresistance of Prostate Cancer. Int J Biol Sci 2015; 11:1160-70. [PMID: 26327810 PMCID: PMC4551752 DOI: 10.7150/ijbs.11439] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 06/29/2015] [Indexed: 12/17/2022] Open
Abstract
Prostate cancer (PCa) remains the most prevalent malignancy among males in the western world. Though hormonal therapies through chemical or surgical castration have been proposed many years ago, heretofore, such mainstay for the treatment on advanced PCa has not fundamentally changed. These therapeutic responses are temporary and most cases will eventually undergo PCa recurrence and metastasis, or even progress to castration-resistant prostate cancer (CRPC) due to persistent development of drug resistance. Prostate cancer stem cells (PCSCs) are a small population of cells, which possess unlimited self-renewal capacities, and can regenerate tumorigenic progenies, and play an essential role in PCa therapy resistance, metastasis and recurrence. Nowadays advanced progresses have been made in understanding of PCSC properties, roles of androgen receptor signaling and ATP-binding cassette sub-family G member 2 (ABCG2), as well as roles of genomic non-coding microRNAs and key signaling pathways, which have led to the development of novel therapies which are active against chemoresistant PCa and CRPC. Based on these progresses, this review is dedicated to address mechanisms underlying PCa chemoresistance, unveil crosstalks among pivotal signaling pathways, explore novel biotherapeutic agents, and elaborate functional properties and specific roles of chemoresistant PCSCs, which may act as a promising target for novel therapies against chemoresistant PCa.
Collapse
Affiliation(s)
- Wei Zhang
- 1. Department of Pharmacology, School of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Yan Meng
- 2. Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Na Liu
- 3. Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Xiao-Fei Wen
- 4. Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Tao Yang
- 2. Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| |
Collapse
|
105
|
Wang Z, Wong ILK, Li FX, Yang C, Liu Z, Jiang T, Jiang TF, Chow LMC, Wan SB. Optimization of permethyl ningalin B analogs as P-glycoprotein inhibitors. Bioorg Med Chem 2015; 23:5566-73. [PMID: 26233798 DOI: 10.1016/j.bmc.2015.07.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/14/2015] [Accepted: 07/16/2015] [Indexed: 11/16/2022]
Abstract
In the present study, a total of 9 novel permethyl ningalin B analogs have been synthesized and evaluated for their P-gp modulating activity in a P-gp overexpressed breast cancer cell line LCC6MDR. Among these derivatives, compound 12 with dimethoxy groups at rings A and B and tri-substitution at ring C with ortho-methoxyethylmorpholine, meta-bromo and para-benzyloxy groups displays the most potent P-gp modulating activity with EC50 of 423 nM to reverse paclitaxel resistance. It is non-toxic towards L929 fibroblast with IC50 greater than 100 μM and with selective index greater than 236. Its mechanism to reverse P-gp mediated drug resistance is by virtue of inhibiting transport activity of P-gp, restoring intracellular drug accumulation and eventually chemosensitizing the cancer cells to anticancer drug again. Moreover, compound 12 showed better solubility (405 ng/mL) than hit compound 1 in phosphate buffer (pH 4.0). In summary, our study demonstrates that permethyl ningalin B derivative 12 is non-toxic and efficient P-gp inhibitor that is a potential candidate to be used clinically to reverse P-gp mediated cancer drug resistance.
Collapse
Affiliation(s)
- Zhen Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Iris L K Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China; State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, China
| | - Fu Xing Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chao Yang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhen Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Ting Fu Jiang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Larry M C Chow
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China; State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, China.
| | - Sheng Biao Wan
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| |
Collapse
|
106
|
Joyce H, McCann A, Clynes M, Larkin A. Influence of multidrug resistance and drug transport proteins on chemotherapy drug metabolism. Expert Opin Drug Metab Toxicol 2015; 11:795-809. [PMID: 25836015 DOI: 10.1517/17425255.2015.1028356] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Chemotherapy involving the use of anticancer drugs remains an important strategy in the overall management of patients with metastatic cancer. Acquisition of multidrug resistance remains a major impediment to successful chemotherapy. Drug transporters in cell membranes and intracellular drug metabolizing enzymes contribute to the resistance phenotype and determine the pharmacokinetics of anticancer drugs in the body. AREAS COVERED ATP-binding cassette (ABC) transporters mediate the transport of endogenous metabolites and xenobiotics including cytotoxic drugs out of cells. Solute carrier (SLC) transporters mediate the influx of cytotoxic drugs into cells. This review focuses on the substrate interaction of these transporters, on their biology and what role they play together with drug metabolizing enzymes in eliminating therapeutic drugs from cells. EXPERT OPINION The majority of anticancer drugs are substrates for the ABC transporter and SLC transporter families. Together, these proteins have the ability to control the influx and the efflux of structurally unrelated chemotherapeutic drugs, thereby modulating the intracellular drug concentration. These interactions have important clinical implications for chemotherapy because ultimately they determine therapeutic efficacy, disease progression/relapse and the success or failure of patient treatment.
Collapse
Affiliation(s)
- Helena Joyce
- Dublin City University, National Institute for Cellular Biotechnology (NICB) , Glasnevin, Dublin 9 , Ireland +353 1 7005700 ; +353 1 7005484 ;
| | | | | | | |
Collapse
|
107
|
Reddig A, Lorenz S, Hiemann R, Guttek K, Hartig R, Heiserich L, Eberle C, Peters V, Schierack P, Sack U, Roggenbuck D, Reinhold D. Assessment of modulated cytostatic drug resistance by automated γH2AX analysis. Cytometry A 2015; 87:724-32. [DOI: 10.1002/cyto.a.22667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/05/2015] [Accepted: 03/12/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Annika Reddig
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University Magdeburg; Magdeburg Germany
| | | | - Rico Hiemann
- Faculty of Natural Sciences; Brandenburg University of Technology Cottbus-Senftenberg; Senftenberg Germany
| | - Karina Guttek
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University Magdeburg; Magdeburg Germany
| | - Roland Hartig
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University Magdeburg; Magdeburg Germany
| | | | | | | | - Peter Schierack
- Faculty of Natural Sciences; Brandenburg University of Technology Cottbus-Senftenberg; Senftenberg Germany
| | - Ulrich Sack
- Institute of Clinical Immunology, Medical Faculty, University of Leipzig; Leipzig Germany
| | - Dirk Roggenbuck
- Medipan GmbH; Dahlewitz/Berlin Germany
- Faculty of Natural Sciences; Brandenburg University of Technology Cottbus-Senftenberg; Senftenberg Germany
| | - Dirk Reinhold
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University Magdeburg; Magdeburg Germany
| |
Collapse
|
108
|
Szewczyk P, Tao H, McGrath AP, Villaluz M, Rees SD, Lee SC, Doshi R, Urbatsch IL, Zhang Q, Chang G. Snapshots of ligand entry, malleable binding and induced helical movement in P-glycoprotein. ACTA CRYSTALLOGRAPHICA. SECTION D, BIOLOGICAL CRYSTALLOGRAPHY 2015; 71:732-41. [PMID: 25760620 PMCID: PMC4356375 DOI: 10.1107/s1399004715000978] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/16/2015] [Indexed: 01/17/2023]
Abstract
P-glycoprotein (P-gp) is a transporter of great clinical and pharmacological significance. Several structural studies of P-gp and its homologs have provided insights into its transport cycle, but questions remain regarding how P-gp recognizes diverse substrates and how substrate binding is coupled to ATP hydrolysis. Here, four new P-gp co-crystal structures with a series of rationally designed ligands are presented. It is observed that the binding of certain ligands, including an ATP-hydrolysis stimulator, produces a large conformational change in the fourth transmembrane helix, which is positioned to potentially transmit a signal to the nucleotide-binding domains. A new ligand-binding site on the surface of P-gp facing the inner leaflet of the membrane is also described, providing vital insights regarding the entry mechanism of hydrophobic drugs and lipids into P-gp. These results represent significant advances in the understanding of how P-gp and related transporters bind and export a plethora of metabolites, antibiotics and clinically approved and pipeline drugs.
Collapse
Affiliation(s)
- Paul Szewczyk
- Division of Biological Sciences, University of California at San Diego, La Jolla, CA 92023, USA
| | - Houchao Tao
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Aaron P. McGrath
- Skaggs School of Pharmacy and Pharmaceutical Sciences, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Mark Villaluz
- Skaggs School of Pharmacy and Pharmaceutical Sciences, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Steven D. Rees
- Skaggs School of Pharmacy and Pharmaceutical Sciences, The University of California, La Jolla, CA 92023, USA
| | - Sung Chang Lee
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Rupak Doshi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Ina L. Urbatsch
- Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Qinghai Zhang
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Geoffrey Chang
- Department of Pharmacology, School of Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| |
Collapse
|
109
|
Lee J, Wang R, Yang Y, Lu X, Zhang X, Wang L, Lou Y. The Effect of ABCB1 C3435T Polymorphism on Cyclosporine Dose Requirements in Kidney Transplant Recipients: A Meta-Analysis. Basic Clin Pharmacol Toxicol 2015; 117:117-25. [PMID: 25536375 DOI: 10.1111/bcpt.12371] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 12/12/2014] [Indexed: 11/30/2022]
Abstract
Cyclosporine A (CsA) is a substrate of the multi-drug efflux pump P-glycoprotein (P-gp) encoded by ABCB1. Among the various single nucleotide polymorphisms (SNPs) of ABCB1, C3435T has been extensively investigated to determine the relationship with the pharmacokinetics of CsA. However, the results are controversial. This meta-analysis was designed to evaluate the influence of C3435T SNP on the dose-adjusted trough (C0 /D) and peak (Cmax /D) concentrations of CsA. Based on a literature search of four authoritative databases, 13 studies since 2001 concerning 1293 kidney transplant recipients were included. The results indicated a significant difference of C0 /D and Cmax /D between 3435CC and 3435TT genotype carriers (weighted mean difference (WMD) of C0 /D: 4.18 (ng ml(-1))/(mg kg(-1)), 95% CIs: 1.00-7.37, p = 0.01; WMD of Cmax /D: 20.85 (ng ml(-1))/(mg kg(-1)), 95% CIs: 2.25-39.46, p = 0.03). Subgroup analysis by ethnicity demonstrated that C0 /D was lower in Asian CC versus TT genotype carriers (WMD = 10.32 (ng ml(-1))/(mg kg(-1)), 95% CIs: 4.78-15.85, p = 0.0003) but did not vary by genotype for Caucasian recipients. Moreover, significant variation of C0 /D was found at 1 week and 1-3 months after transplantation between CC and TT genotype carriers. Therefore, this meta-analysis showed a correlation between ABCB1 C3435T polymorphism and the dose-adjusted concentration of CsA. Patients with 3435CC genotype will require a higher dose of CsA to achieve target therapeutic concentrations when compared with 3435TT carriers after kidney transplantation, especially in the Asian population and especially during the early and middle time periods after transplantation.
Collapse
Affiliation(s)
- Jun Lee
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Rongrong Wang
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yuan Yang
- Department of Clinical Pharmacology, Zhuji City Sixth People's Hospital, Zhuji, China
| | - Xiaoyang Lu
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xingguo Zhang
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Linrun Wang
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yan Lou
- Department of Clinical Pharmacology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| |
Collapse
|
110
|
Choi JR, Kim JO, Kang DR, Shin JY, Zhang XH, Oh JE, Park JY, Kim KA, Kang JH. Genetic Variations of Drug Transporters Can Influence on Drug Response in Patients Treated with Docetaxel Chemotherapy. Cancer Res Treat 2014; 47:509-17. [PMID: 25648089 PMCID: PMC4506105 DOI: 10.4143/crt.2014.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 04/21/2014] [Indexed: 11/21/2022] Open
Abstract
Purpose Dose-limiting toxicities of docetaxel are widely considered to be neutropenia, anemia, skin toxicity, and nausea. One of the factors that limit the use of docetaxel is its unpredictability of inter-individual variation in toxicity. Materials and Methods In order to identify the genetic factors that affect the risk of docetaxel-induced toxicities, we recruited patients who received docetaxel chemotherapy. We genotyped 92 patients with single-nucleotide polymorphisms (SNPs) in 5 genes: CYP3A4 (CYP3A4*1B, CYP3A4*18, and CYP3A4*3), CYP3A5 (CYP3A5*2 and CYP3A5*3), ABCB1 (C1236T, G2677G/T, and C3435T), SLCO1B3 (rs11045585), and ABCC2 (rs12762549). Results Out of 92 patients, 70 had grade 3 or 4 neutropenia; 4 had grade 1 or 2; and 18 had no toxicity (76.1%, 4.3%, and 19.6%, respectively). The findings of the SNP analysis showed that patients with TT genotype of ABCB1 3435C>T polymorphism showed significantly higher risk of neutropenia and anemia (p=0.029 and p=0.044, respectively). There were significant associations between docetaxel-induced leucopenia and 2677G/T of ABCB1 and rs12762549 of ABCC2 (p=0.025 and p=0.028, respectively). In a multivariate analysis, we observed that patients carrying 2677G>T in ABCB1might be associated with higher risk of chemo-resistance when treated with docetaxel (odds ratio [OR], 6.48; confidence interval, 1.92 to 21.94; p=0.003). In a subgroup analysis of non-small cell lung cancer patients, a significant association of tumor response with G2677T/A (OR, 4.54) in ABCB1 and SLCO1B3 (OR, 9.44) was observed. Conclusion Our data suggest that ABCB1 (2677G/T) and SLCO1B3 (rs11055585) might be major genetic predictors of docetaxel-related toxicities in patients receiving docetaxel chemotherapy.
Collapse
Affiliation(s)
- Jung Ran Choi
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea
| | - Jeong-Oh Kim
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea
| | - Dae Ryong Kang
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Young Shin
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea
| | - Xiang Hua Zhang
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea
| | - Ji Eun Oh
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea
| | - Ji-Young Park
- Department of Clinical Pharmacology and Toxicology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Kyoung-Ah Kim
- Department of Clinical Pharmacology and Toxicology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jin-Hyoung Kang
- Laboratory of Medical Oncology, Research Institutes of Medical Oncology, The Catholic University of Korea, Seoul, Korea.,Department of Medical Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| |
Collapse
|
111
|
D’Avolio A, Pensi D, Baietto L, Di Perri G. Therapeutic drug monitoring of intracellular anti-infective agents. J Pharm Biomed Anal 2014; 101:183-93. [DOI: 10.1016/j.jpba.2014.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 03/24/2014] [Indexed: 01/11/2023]
|
112
|
Silva R, Vilas-Boas V, Carmo H, Dinis-Oliveira RJ, Carvalho F, de Lourdes Bastos M, Remião F. Modulation of P-glycoprotein efflux pump: induction and activation as a therapeutic strategy. Pharmacol Ther 2014; 149:1-123. [PMID: 25435018 DOI: 10.1016/j.pharmthera.2014.11.013] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 11/19/2014] [Indexed: 01/03/2023]
Abstract
P-glycoprotein (P-gp) is an ATP-dependent efflux pump encoded by the MDR1 gene in humans, known to mediate multidrug resistance of neoplastic cells to cancer therapy. For several decades, P-gp inhibition has drawn many significant research efforts in an attempt to overcome this phenomenon. However, P-gp is also constitutively expressed in normal human epithelial tissues and, due to its broad substrate specificity, to its cellular polarized expression in many excretory and barrier tissues, and to its great efflux capacity, it can play a crucial role in limiting the absorption and distribution of harmful xenobiotics, by decreasing their intracellular accumulation. Such a defense mechanism can be of particular relevance at the intestinal level, by significantly reducing the intestinal absorption of the xenobiotic and, consequently, avoiding its access to the target organs. In this review, the current knowledge on this important efflux pump is summarized, and a new focus is brought on the therapeutic interest of inducing and/or activating P-gp for limiting the toxicity caused by its substrates. Several in vivo and in vitro studies validating the use of such a therapeutic strategy are discussed. An extensive literature search for reported P-gp inducers/activators and for the experimental models used in their characterization was conducted. Those studies demonstrate that effective antidotal pathways can be achieved by efficiently promoting the P-gp-mediated efflux of deleterious xenobiotics, resulting in a significant reduction in their intracellular levels and, consequently, in a significant reduction of their toxicity.
Collapse
Affiliation(s)
- Renata Silva
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Vânia Vilas-Boas
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Helena Carmo
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Ricardo Jorge Dinis-Oliveira
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; INFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, Advanced Institute of Health Sciences - North (ISCS-N), CESPU, CRL, Gandra, Portugal; Department of Legal Medicine and Forensic Sciences, Faculty of Medicine, University of Porto, Porto, Portugal.
| | - Félix Carvalho
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Maria de Lourdes Bastos
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Fernando Remião
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| |
Collapse
|
113
|
Zoto T, Kilickap S, Yasar U, Celik I, Bozkurt A, Babaoglu MO. Improved Anti-Emetic Efficacy of 5-HT3Receptor Antagonists in Cancer Patients with Genetic Polymorphisms of ABCB1 (MDR1) Drug Transporter. Basic Clin Pharmacol Toxicol 2014; 116:354-60. [DOI: 10.1111/bcpt.12334] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/24/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Teuta Zoto
- Department of Pharmacology; Faculty of Medicine; Hacettepe University; Ankara Turkey
| | - Saadettin Kilickap
- Division of Medical Oncology; Department of Internal Medicine; Faculty of Medicine; Hacettepe University; Ankara Turkey
| | - Umit Yasar
- Department of Pharmacology; Faculty of Medicine; Hacettepe University; Ankara Turkey
| | - Ismail Celik
- Division of Medical Oncology; Department of Internal Medicine; Faculty of Medicine; Hacettepe University; Ankara Turkey
| | - Atilla Bozkurt
- Department of Pharmacology; Faculty of Medicine; Hacettepe University; Ankara Turkey
| | - Melih Onder Babaoglu
- Department of Pharmacology; Faculty of Medicine; Hacettepe University; Ankara Turkey
| |
Collapse
|
114
|
Pahnke J, Fröhlich C, Paarmann K, Krohn M, Bogdanovic N, Årsland D, Winblad B. Cerebral ABC Transporter-common Mechanisms May Modulate Neurodegenerative Diseases and Depression in Elderly Subjects. Arch Med Res 2014; 45:738-43. [DOI: 10.1016/j.arcmed.2014.10.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 10/29/2014] [Indexed: 12/21/2022]
|
115
|
Nielsen LM, Olesen AE, Branford R, Christrup LL, Sato H, Drewes AM. Association Between Human Pain-Related Genotypes and Variability in Opioid Analgesia: An Updated Review. Pain Pract 2014; 15:580-94. [DOI: 10.1111/papr.12232] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 06/04/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Lecia M. Nielsen
- Mech-Sense; Department of Gastroenterology and Hepatology; Aalborg University Hospital; Aalborg Denmark
- Department of Drug Design and Pharmacology; Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
| | - Anne E. Olesen
- Mech-Sense; Department of Gastroenterology and Hepatology; Aalborg University Hospital; Aalborg Denmark
| | - Ruth Branford
- Department of Palliative Medicine; Royal Marsden Hospital; London UK
| | - Lona L. Christrup
- Department of Drug Design and Pharmacology; Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
| | - Hiroe Sato
- Interstitial Lung Disease Unit; Royal Brompton Hospital & National Heart and Lung Institute; Imperial College London; London UK
| | - Asbjørn M. Drewes
- Mech-Sense; Department of Gastroenterology and Hepatology; Aalborg University Hospital; Aalborg Denmark
- Department of Clinical Medicine; Aalborg University; Aalborg Denmark
| |
Collapse
|
116
|
Vellonen KS, Malinen M, Mannermaa E, Subrizi A, Toropainen E, Lou YR, Kidron H, Yliperttula M, Urtti A. A critical assessment of in vitro tissue models for ADME and drug delivery. J Control Release 2014; 190:94-114. [DOI: 10.1016/j.jconrel.2014.06.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/22/2014] [Accepted: 06/23/2014] [Indexed: 12/22/2022]
|
117
|
Bruhn O, Cascorbi I. Polymorphisms of the drug transporters ABCB1, ABCG2, ABCC2 and ABCC3 and their impact on drug bioavailability and clinical relevance. Expert Opin Drug Metab Toxicol 2014; 10:1337-54. [PMID: 25162314 DOI: 10.1517/17425255.2014.952630] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Human ATP-binding cassette (ABC) transporters act as translocators of numerous substrates across extracellular and intracellular membranes, thereby contributing to bioavailability and consequently therapy response. Genetic polymorphisms are considered as critical determinants of expression level or activity and subsequently response to selected drugs. AREAS COVERED Here the influence of polymorphisms of the prominent ABC transporters P-glycoprotein (MDR1, ABCB1), breast cancer resistance protein (BCRP, ABCG2) and the multidrug resistance-associated protein (MRP) 2 (ABCC2) as well as MRP3 (ABCC3) on the pharmacokinetic of drugs and associated consequences on therapy response and clinical outcome is discussed. EXPERT OPINION ABC transporter genetic variants were assumed to affect interindividual differences in pharmacokinetics and subsequently clinical response. However, decades of medical research have not yielded in distinct and unconfined reproducible outcomes. Despite some unique results, the majority were inconsistent and dependent on the analyzed cohort or study design. Therefore, variability of bioavailability and drug response may be attributed only by a small amount to polymorphisms in transporter genes, whereas transcriptional regulation or post-transcriptional modification seems to be more critical. In our opinion, currently identified genetic variants of ABC efflux transporters can give some hints on the role of transporters at interfaces but are less suitable as biomarkers to predict therapeutic outcome.
Collapse
Affiliation(s)
- Oliver Bruhn
- Institute of Experimental and Clinical Pharmacology, University Hospital Schleswig-Holstein , Campus Kiel, Arnold-Heller-Str. 3, 24105 Kiel , Germany +49 431 597 3500 ; +49 431 597 3522 ;
| | | |
Collapse
|
118
|
Lee HJ, Heo DS, Cho JY, Han SW, Chang HJ, Yi HG, Kim TE, Lee SH, Oh DY, Im SA, Jang IJ, Bang YJ. A Phase I Study of Oral Paclitaxel with a Novel P-Glycoprotein Inhibitor, HM30181A, in Patients with Advanced Solid Cancer. Cancer Res Treat 2014; 46:234-42. [PMID: 25038758 PMCID: PMC4132447 DOI: 10.4143/crt.2014.46.3.234] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/12/2013] [Indexed: 11/21/2022] Open
Abstract
Purpose The purpose of this study is to determine the maximum tolerated dose (MTD), safety, pharmacokinetics, and recommended phase II dose of an oral drug composed of paclitaxel and HM30181A, which is an inhibitor of P-glycoprotein, in patients with advanced cancers. Materials and Methods Patients with advanced solid tumors received standard therapy were given the study drug at escalating doses, using a 3+3 design. The study drug was orally administered on days 1, 8, and 15, with a 28-day cycle of administration. The dose of paclitaxel was escalated from 60 to 420 mg/m2, and the dose of HM30181A was escalated from 30-210 mg/m2. Results A total of twenty-four patients were enrolled. Only one patient experienced a doselimiting toxicity—a grade 3 neutropenia that persisted for more than 2 weeks, at 240 mg/m2 of paclitaxel. MTD was not reached. The maximum plasma concentration was obtained at a dose level of 300 mg/m2 and the area under the curve of plasma concentration- time from 0 to the most recent plasma concentration measurement of paclitaxel was reached at a dose level of 420 mg/m2. The absorption of paclitaxel tends to be limited at doses that exceed 300 mg/m2. The effective plasma concentration of paclitaxel was achieved at a dose of 120 mg/m2. Responses of 23 patients were evaluated; 8 (34.8%) had stable disease and 15 (65.2%) had progressive disease. Conclusion The study drug appears to be well tolerated, and the effective plasma concentration of paclitaxel was achieved. The recommended phase II dose for oral paclitaxel is 300 mg/m2.
Collapse
Affiliation(s)
- Hyun Jung Lee
- Department of Internal Medicine, Dongguk University Ilsan Medical Center, Dogguk University College of Medicine, Goyang, Korea ; Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
119
|
Bagal S, Bungay P. Restricting CNS penetration of drugs to minimise adverse events: role of drug transporters. DRUG DISCOVERY TODAY. TECHNOLOGIES 2014; 12:e79-85. [PMID: 25027378 DOI: 10.1016/j.ddtec.2014.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Some drug discovery approaches can benefit from restricting the access of compounds to the central nervous system (CNS) to minimise the risk of side-effects. Designing compounds that act as substrates for efflux transporters in the blood–brain barrier can achieve CNS restriction without significantly impairing absorption in the intestine. In vitro assays can be deployed to optimise a balance between passive permeability and active efflux via the ABC family transporters P-glycoprotein (P-gp, ABCB1) and Breast Cancer Resistance Protein (BCRP, ABCG2) whilst in vivo estimates of distribution of unbound concentrations of drug are needed to understand pharmacologically relevant exposure in peripheral and central compartments. This strategy can deliver significant CNS restriction whilst retaining good oral bioavailability, cell penetration and pharmacological activity. The possible risks of targeting P-gp and BCRP in orally delivered drugs are discussed.
Collapse
Affiliation(s)
- Sharan Bagal
- Worldwide Medicinal Chemistry, Pfizer Neusentis, The Portway Building, Granta Park, Great, Abington, Cambridge, CB21 6GS, UK
| | - Peter Bungay
- Pfizer Neusentis, The Portway Building, Granta Park, Great Abington, Cambridge, CB21 6GS, UK
| |
Collapse
|
120
|
Helldén A, Madadi P. Pregnancy and pharmacogenomics in the context of drug metabolism and response. Pharmacogenomics 2014; 14:1779-91. [PMID: 24192125 DOI: 10.2217/pgs.13.176] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
It is well-known that profound physiological and biochemical changes occur throughout the course of pregnancy. At the same time, the role of pharmacogenomics in modulating the metabolism and response profile to numerous medications has been elucidated. Yet, the clinical impact of pharmacogenomics during pregnancy is less well understood. We present an overview of factors modulating the pharmacokinetics and pharmacodynamics of medications throughout the time span of pregnancy while providing insights on how pharmacogenomics may contribute to interindividual variability in drug metabolism and response amongst pregnant women.
Collapse
Affiliation(s)
- Anders Helldén
- Division of Clinical Pharmacology & Toxicology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | | |
Collapse
|
121
|
Paclitaxel sensitivity in relation to ABCB1 expression, efflux and single nucleotide polymorphisms in ovarian cancer. Sci Rep 2014; 4:4669. [PMID: 24810093 PMCID: PMC4015028 DOI: 10.1038/srep04669] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 03/24/2014] [Indexed: 11/08/2022] Open
Abstract
ABCB1 (adenosine triphosphate-binding cassette transporter B1) mediates cellular elimination of many chemotherapeutic agents including paclitaxel, which is commonly used to treat ovarian cancer. A significant association between common single nucleotide polymorphisms (SNPs) in ABCB1 and progression-free survival has been reported in patients with ovarian cancer. Variable paclitaxel clearance due to genotype specific differences in ABCB1 activity in cancer cells and/or normal tissues may underlie the association. Using cell-based models, we evaluated the correlations between ABCB1 expression, polymorphisms, transporter activity and paclitaxel sensitivity in ovarian cancer (n = 10) and lymphoblastoid (n = 19) cell lines. Close associations between ABCB1 expression, transporter function and paclitaxel sensitivity were found in lymphoblastoid cell lines, although we could not demonstrate an association with common SNPs. In ovarian cancer cell lines, ABCB1 expression was low and the association between expression and function was lost. These results suggest that ABCB1 related survival difference in ovarian cancer patients is more likely to be due to differential whole body paclitaxel clearance mediated by normal cells rather than a direct effect on cancer cells.
Collapse
|
122
|
Wang XM, Gao SJ, Guo XF, Sun WJ, Yan ZQ, Wang WX, Xu YQ, Lu D. CIAPIN1 gene silencing enhances chemosensitivity in a drug-resistant animal model in vivo. ACTA ACUST UNITED AC 2014; 47:273-8. [PMID: 24676475 PMCID: PMC4075290 DOI: 10.1590/1414-431x20133356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 11/27/2013] [Indexed: 12/25/2022]
Abstract
Overexpression of cytokine-induced apoptosis inhibitor 1 (CIAPIN1) contributes to multidrug resistance (MDR) in breast cancer. This study aimed to evaluate the potential of CIAPIN1 gene silencing by RNA interference (RNAi) as a treatment for drug-resistant breast cancer and to investigate the effect of CIAPIN1 on the drug resistance of breast cancer in vivo. We used lentivirus-vector-based RNAi to knock down CIAPIN1 in nude mice bearing MDR breast cancer tumors and found that lentivirus-vector-mediated silencing of CIAPIN1 could efficiently and significantly inhibit tumor growth when combined with chemotherapy in vivo. Furthermore, Western blot analysis showed that both CIAPIN1 and P-glycoprotein expression were efficiently downregulated, and P53 was upregulated, after RNAi. Therefore, we concluded that lentivirus-vector-mediated RNAi targeting of CIAPIN1 is a potential approach to reverse MDR of breast cancer. In addition, CIAPIN1 may participate in MDR of breast cancer by regulating P-glycoprotein and P53 expression.
Collapse
Affiliation(s)
- X M Wang
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - S J Gao
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - X F Guo
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - W J Sun
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Z Q Yan
- Department of Breast Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - W X Wang
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Y Q Xu
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - D Lu
- Department of Oncology, The Second Affiliated Hospital, Harbin Medical University, Harbin, China
| |
Collapse
|
123
|
Dessilly G, Elens L, Panin N, Capron A, Decottignies A, Demoulin JB, Haufroid V. ABCB1 1199G>A genetic polymorphism (Rs2229109) influences the intracellular accumulation of tacrolimus in HEK293 and K562 recombinant cell lines. PLoS One 2014; 9:e91555. [PMID: 24621983 PMCID: PMC3951418 DOI: 10.1371/journal.pone.0091555] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 02/13/2014] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE ATP-binding cassette, subfamily B, member 1 (ABCB1) transporter, or P-glycoprotein, is an efflux protein implicated in the absorption and the distribution of various compounds, including tacrolimus and cyclosporine A. In vivo studies suggest an association between the ABCB1 1199G>A single nucleotide polymorphism (SNP) and tacrolimus intracellular accumulation. The aim of the present experimental study was to clarify in vitro the impact of the coding ABCB1 1199G>A SNP on ABCB1 transport activity towards both immunosuppressive drugs. METHOD Two recombinant cell lines, i.e. Human Embryonic Kidney (HEK293) and Human Myelogenous Leukemia (K562) cells, overexpressing ABCB1 carrying either the wild-type allele (1199G) or its mutated counterpart (1199A), were generated. The impact of the 1199G>A SNP on ABCB1 activity towards rhodamine (Rh123), doxorubicin, vinblastine, tacrolimus and cyclosporine A was assessed by accumulation, cytotoxicity and/or kinetic experiments. RESULTS Tacrolimus accumulation was strongly decreased in cells overexpressing the wild-type protein (1199G) compared to control cells, confirming the ability of ABCB1 to transport tacrolimus. By contrast, overexpression of the variant protein (1199A) had nearly no effect on tacrolimus intracellular accumulation whatever the model used and the concentration tested. Unlike tacrolimus, our results also indicate that cyclosporine A, Rh123 and doxorubicin are transported in a similar extent by the wild-type and variant ABCB1 proteins while the variant protein seems to be more efficient for the transport of vinblastine. CONCLUSION ABCB1 encoded by the 1199G wild-type allele transports more efficiently tacrolimus in comparison to the 1199A variant protein. This observation indicates that the amino-acid substitution (Ser400Asn) encoded by the 1199A allele drastically decreases the ability of ABCB1 to drive the efflux of tacrolimus in a substrate-specific manner, in agreement with our previously published clinical data. Our study emphasizes the importance of the ABCB1 1199G>A polymorphism for ABCB1 activity and its potential to explain differences in drug response.
Collapse
Affiliation(s)
- Géraldine Dessilly
- Louvain Centre for Toxicology and Applied Pharmacology, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Laure Elens
- Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Nadtha Panin
- Louvain Centre for Toxicology and Applied Pharmacology, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Arnaud Capron
- Department of Clinical Chemistry, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | | | | | - Vincent Haufroid
- Louvain Centre for Toxicology and Applied Pharmacology, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
- Department of Clinical Chemistry, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- * E-mail:
| |
Collapse
|
124
|
Sharifi MJ, Bahoush G, Zaker F, Ansari S, Rafsanjani KA, Sharafi H. Association of -24CT, 1249GA, and 3972CT ABCC2 gene polymorphisms with methotrexate serum levels and toxic side effects in children with acute lymphoblastic leukemia. Pediatr Hematol Oncol 2014; 31:169-77. [PMID: 24552501 DOI: 10.3109/08880018.2013.870625] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Acute lymphoblastic leukemia patients after being treated with methotrexate, have differences in methotrexate serum levels and toxic side effects. One of the main determinants of these toxic side effects is the host pharmacogenetics. The aim of this study was to evaluate the association of -24CT, 1249GA, and 3972CT ABCC2 gene polymorphisms with serum levels, and toxic side effects of methotrexate in childhood acute lymphoblastic leukemia. Applying polymerase chain reaction and restriction fragment length polymorphism techniques, the prevalence of -24CT, 1249GA, and 3972CT ABCC2 gene polymorphisms was evaluated in 65 acute lymphoblastic leukemia patients. The relationship between polymorphisms and methotrexate serum levels and toxicities was studied. A reverse significant relationship was detected between 3972T allele carriers and hepatotoxicity (P = 0.01, OR = 0.25, 95% CI = 0.09-0.72). Also, 1249A allele carriers had increased rate of gastrointestinal toxicity (P = 0.05, OR = 3.47, 95% CI = 1.04-11.57). No significant relationship was detected between -24CT polymorphism and methotrexate toxic side effects. There was no significant relationship between these three polymorphisms and methotrexate serum levels. Genotyping for 3972CT and 1249GA ABCC2 gene variants maybe useful in acute lymphoblastic leukemia to optimize methotrexate therapy and reducing the associated toxicity.
Collapse
|
125
|
Noguchi K, Katayama K, Sugimoto Y. Human ABC transporter ABCG2/BCRP expression in chemoresistance: basic and clinical perspectives for molecular cancer therapeutics. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2014; 7:53-64. [PMID: 24523596 PMCID: PMC3921828 DOI: 10.2147/pgpm.s38295] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Adenine triphosphate (ATP)-binding cassette (ABC) transporter proteins, such as ABCB1/P-glycoprotein (P-gp) and ABCG2/breast cancer resistance protein (BCRP), transport various structurally unrelated compounds out of cells. ABCG2/BCRP is referred to as a “half-type” ABC transporter, functioning as a homodimer, and transports anticancer agents such as irinotecan, 7-ethyl-10-hydroxycamptothecin (SN-38), gefitinib, imatinib, methotrexate, and mitoxantrone from cells. The expression of ABCG2/BCRP can confer a multidrug-resistant phenotype on cancer cells and affect drug absorption, distribution, metabolism, and excretion in normal tissues, thus modulating the in vivo efficacy of chemotherapeutic agents. Clarification of the substrate preferences and structural relationships of ABCG2/BCRP is essential for our understanding of the molecular mechanisms underlying its effects in vivo during chemotherapy. Its single-nucleotide polymorphisms are also involved in determining the efficacy of chemotherapeutics, and those that reduce the functional activity of ABCG2/BCRP might be associated with unexpected adverse effects from normal doses of anticancer drugs that are ABCG2/BCRP substrates. Importantly, many recently developed molecular-targeted cancer drugs, such as the tyrosine kinase inhisbitors, imatinib mesylate, gefitinib, and others, can also interact with ABCG2/BCRP. Both functional single-nucleotide polymorphisms and inhibitory agents of ABCG2/BCRP modulate the in vivo pharmacokinetics and pharmacodynamics of these molecular cancer treatments, so the pharmacogenetics of ABCG2/BCRP is an important consideration in the application of molecular-targeted chemotherapies.
Collapse
Affiliation(s)
- Kohji Noguchi
- Division of Chemotherapy, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Kazuhiro Katayama
- Division of Chemotherapy, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Yoshikazu Sugimoto
- Division of Chemotherapy, Faculty of Pharmacy, Keio University, Tokyo, Japan
| |
Collapse
|
126
|
Keers R, Aitchison KJ. Pharmacogenetics of antidepressant response. Expert Rev Neurother 2014; 11:101-25. [DOI: 10.1586/ern.10.186] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
127
|
Pastor CM, Müllhaupt B, Stieger B. The Role of Organic Anion Transporters in Diagnosing Liver Diseases by Magnetic Resonance Imaging. Drug Metab Dispos 2014; 42:675-84. [DOI: 10.1124/dmd.113.055707] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
|
128
|
Massey PR, Fojo T, Bates SE. ABC Transporters: Involvement in Multidrug Resistance and Drug Disposition. CANCER DRUG DISCOVERY AND DEVELOPMENT 2014. [DOI: 10.1007/978-1-4614-9135-4_20] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
129
|
Hamzah S, Teh LK, Siew JSK, Ahmad G, Wong HS, Zakaria ZA, Salleh MZ. Pharmacogenotyping of CYP3A5 in predicting dose-adjusted trough levels of tacrolimus among Malaysian kidney-transplant patients. Can J Physiol Pharmacol 2014; 92:50-7. [DOI: 10.1139/cjpp-2013-0128] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tacrolimus (FK506) is a calcineurin inhibitor with a narrow therapeutic index that exhibits large interindividual variation. Seventy-eight kidney transplant patients treated with tacrolimus were recruited to study the correlation of dose adjusted trough level (level/dose; L/D) of tacrolimus with CYP3A5 and ABCB1 genotypes, as well as the mRNA copy number of ABCB1 in blood. Patients were genotyped for ABCB1 (C1236T, G2677T/A, and C3435T) and CYP3A5 (G6986A), while ABCB1 mRNA transcript copy number was determined by absolute quantification (real-time PCR) in 46 patients. CYP3A5*3 genotypes were found to be a good predictor of tacrolimus L/D in kidney-transplant patients. Significantly higher L/D was observed among non-expressors (2.85, 95%: 2.05–3.70 (ng·mL–1)/(mg·kg–1)) as compared with the expressors (1.15, 95%: 0.95–1.80 (ng·mL–1)/(mg·kg–1)) of CYP3A5 (Mann–Whitney U test; P < 0.001). No correlation was observed between L/D and the ABCB1 genotypes. A significant inverse correlation of blood ABCB1 mRNA level with L/D was demonstrated (Spearman’s Rank Order correlation; P = 0.016, rs = –0.348). However, in multiple regression analysis, only CYP3A5*3 genotype groups were found to be significantly correlated with tacrolimus L/D (P < 0.001). These findings highlight the importance of CYP3A5*3 pharmacogenotyping among kidney-transplant patients treated with tacrolimus, and confirm the role of blood cell P-glycoprotein in influencing the L/D for tacrolimus.
Collapse
Affiliation(s)
- Sharina Hamzah
- Integrative Pharmacogenomics Institute, Universiti Teknologi MARA (UiTM), 42300 Puncak Alam, Selangor DE, Malaysia
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute, Universiti Teknologi MARA (UiTM), 42300 Puncak Alam, Selangor DE, Malaysia
| | - John Shia Kwong Siew
- Integrative Pharmacogenomics Institute, Universiti Teknologi MARA (UiTM), 42300 Puncak Alam, Selangor DE, Malaysia
| | - Ghazali Ahmad
- Department of Nephrology, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Hin Seng Wong
- Department of Nephrology, Hospital Selayang, Selangor, Malaysia
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), 42300 Puncak Alam, Selangor DE, Malaysia
| | - Mohd Zaki Salleh
- Integrative Pharmacogenomics Institute, Universiti Teknologi MARA (UiTM), 42300 Puncak Alam, Selangor DE, Malaysia
| |
Collapse
|
130
|
Abstract
This chapter provides a review of the pharmacogenetics of membrane transporters, including ABC transporters and OATPs. Membrane transporters are heavily involved in drug disposition, by actively transporting substrate drugs between organs and tissues. As such, polymorphisms in the genes encoding these proteins may have a significant effect on the absorption, distribution, metabolism, excretion, and activity of compounds. Although few drug transporter polymorphisms have transitioned from the bench to the bedside, this chapter discusses clinical development of transporter pharmacogenetic markers. Finally, development of SLCO1B1 genotyping to avoid statin induced adverse drug reactions is discussed as a model case for transporter pharmacogenetics clinical development.
Collapse
|
131
|
Reversal of ATP-binding cassette drug transporter activity to modulate chemoresistance: why has it failed to provide clinical benefit? Cancer Metastasis Rev 2013; 32:211-27. [PMID: 23093326 DOI: 10.1007/s10555-012-9402-8] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Enhanced drug extrusion from cells due to the overexpression of the ATP-binding cassette (ABC) drug transporters inhibits the cytotoxic effects of structurally diverse and mechanistically unrelated anticancer agents and is a major cause of multidrug resistance (MDR) of human malignancies. Multiple compounds can suppress the activity of these efflux transporters and sensitize resistant tumor cells, but despite promising preclinical and early clinical data, they have yet to find a role in oncologic practice. Based on the knowledge of the structure, function, and distribution of MDR-related ABC transporters and the results of their preclinical and clinical evaluation, we discuss probable reasons why these inhibitors have not improved the outcome of therapy for cancer patients. We also outline new MDR-reversing strategies that directly target ABC transporters or circumvent relevant signaling pathways.
Collapse
|
132
|
Lee J, Huang H, Chen Y, Lu X. ABCB1 haplotype influences the sirolimus dose requirements in Chinese renal transplant recipients. Biopharm Drug Dispos 2013; 35:164-72. [PMID: 24285256 DOI: 10.1002/bdd.1881] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 10/31/2013] [Accepted: 11/21/2013] [Indexed: 01/11/2023]
Abstract
Sirolimus, an immunosuppressive drug used to prevent organ rejection after renal transplantation, has a narrow therapeutic index and a large inter-individual variability of pharmacokinetics. The aim of this study was to analyse the dose-normalized trough blood concentrations (C0 /D ratio) of sirolimus in patients with different genotypes and attempt to investigate the possible associations between ABCB1/CYP3A5 genotypes and sirolimus dose requirements in Chinese renal transplant recipients. Blood samples were collected from 85 Chinese renal transplant recipients who were treated with sirolimus for at least 3 months and polymorphisms of the ABCB1 and CYP3A5 were determined by the SNaPShot multiplex assay. The blood concentrations of sirolimus were determined with HPLC. A significant allele-dependent effect was observed between the CYP3A5*3 polymorphism and the C0 /D ratio of sirolimus. The patients bearing at least one CYP3A5*1 allele had a lower sirolimus C0/D ratio compared with those with a homozygous CYP3A5*3 genotype (p < 0.05). No significant differences of sirolimus C0/D ratios were observed among various ABCB1 1236C>T, 2677G>T/A and 3435C>T genotype groups. However, haplotype analysis including ABCB1 1236C>T, 2677G>T/A and 3435C>T SNPs showed that the mean sirolimus C0/D of subjects carrying the CGC/CGC diplotype was about 30% lower compared with those carrying the CGC/TTT or TTT/TTT diplotype, whether or not they expressed the CYP3A5 (p < 0.05). These results demonstrated that the haplotype of ABCB1 might be a better index for the prediction of sirolimus blood concentration than single SNPs. Genotyping of ABCB1 and CYP3A5 might help to optimize individualized sirolimus treatments for Chinese renal transplant recipients.
Collapse
Affiliation(s)
- Jun Lee
- Department of Clinical Pharmacology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | | | | | | |
Collapse
|
133
|
Exploiting nanotechnology to overcome tumor drug resistance: Challenges and opportunities. Adv Drug Deliv Rev 2013; 65:1731-47. [PMID: 24036273 DOI: 10.1016/j.addr.2013.09.001] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 08/15/2013] [Accepted: 09/03/2013] [Indexed: 02/06/2023]
Abstract
Tumor cells develop resistance to chemotherapeutic drugs through multiple mechanisms. Overexpression of efflux transporters is an important source of drug resistance. Efflux transporters such as P-glycoprotein reduce intracellular drug accumulation and compromise drug efficacy. Various nanoparticle-based approaches have been investigated to overcome efflux-mediated resistance. These include the use of formulation excipients that inhibit transporter activity and co-delivery of the anticancer drug with a specific inhibitor of transporter function or expression. However, the effectiveness of nanoparticles can be diminished by poor transport in the tumor tissue. Hence, adjunct therapies that improve the intratumoral distribution of nanoparticles may be vital to the successful application of nanotechnology to overcome tumor drug resistance. This review discusses the mechanisms of tumor drug resistance and highlights the opportunities and challenges in the use of nanoparticles to improve the efficacy of anticancer drugs against resistant tumors.
Collapse
|
134
|
Sadhasivam S, Chidambaran V. Pharmacogenomics of opioids and perioperative pain management. Pharmacogenomics 2013; 13:1719-40. [PMID: 23171337 DOI: 10.2217/pgs.12.152] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Inadequate pain relief and adverse effects from analgesics remain common in children and adults during the perioperative period. Opioids are the most commonly used analgesics in children and adults to treat perioperative pain. Narrow therapeutic index and a large interpatient variability in response to opioids are clinically significant, with inadequate pain relief at one end of the spectrum and serious side effects, such as respiratory depression and excessive sedation due to relative overdosing, at the other end. Personalizing analgesia during the perioperative period attempts to maximize pain relief while minimizing adverse events from therapy. While various factors influence response to treatment among surgical patients, age, sex, race and pharmacogenetic differences appear to play major roles in predicting outcome. Genetic factors include a subset of genes that modulate the proteins involved in pain perception, pain pathway, analgesic metabolism (pharmacokinetics), transport and receptor signaling (pharmacodynamics). While results from adult genetic studies can provide direction for pediatric studies, they have limited direct applicability, as children's genetic predispositions to analgesic response may be influenced by developmental and behavioral components, altered sensitivity to analgesics and variation in gene-expression patterns. We have reviewed the available evidence on improving and personalizing pain management with opioids and the significance of individualizing analgesia, in order to maximize analgesic effect with minimal adverse effects with opioids. While the early evidence on individual genotype associations with pain, analgesia and opioid adverse outcome are promising, the large amount of conflicting data in the literature suggests that there is a need for larger and more robust studies with appropriate population stratification and consideration of nongenetic and other genetic risk factors. Although the clinical evidence and the prospect of being able to provide point-of-care genotyping to enable clinicians to deliver personalized analgesia for individual patients is still not available, positioning our research to identify all possible major genetic and nongenetic risk factors of an individual patient, advancing less expensive point-of-care genotyping technology and developing easy-to-use personalized clinical decision algorithms will help us to improve current clinical and economic outcomes associated with pain and opioid pain management.
Collapse
Affiliation(s)
- Senthilkumar Sadhasivam
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 2001, Cincinnati, OH 45229, USA.
| | | |
Collapse
|
135
|
Bauer M, Karch R, Zeitlinger M, Stanek J, Philippe C, Wadsak W, Mitterhauser M, Jäger W, Haslacher H, Müller M, Langer O. Interaction of 11C-tariquidar and 11C-elacridar with P-glycoprotein and breast cancer resistance protein at the human blood-brain barrier. J Nucl Med 2013; 54:1181-7. [PMID: 23833270 DOI: 10.2967/jnumed.112.118232] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED The adenosine triphosphate-binding cassette transporters P-glycoprotein (Pgp) and breast cancer resistance protein (BCRP) are 2 major gatekeepers at the blood-brain barrier (BBB) that restrict brain distribution of several clinically used drugs. In this study, we investigated the suitability of the radiolabeled Pgp/BCRP inhibitors (11)C-tariquidar and (11)C-elacridar to assess Pgp density in the human brain with PET. METHODS Healthy subjects underwent a first PET scan of 120-min duration with either (11)C-tariquidar (n = 6) or (11)C-elacridar (n = 5) followed by a second PET scan of 60-min duration with (R)-(11)C-verapamil. During scan 1 (at 60 min after radiotracer injection), unlabeled tariquidar (3 mg/kg) was intravenously administered. Data were analyzed using 1-tissue 2-rate-constant (1T2K) and 2-tissue 4-rate-constant (2T4K) compartment models and either metabolite-corrected or uncorrected arterial input functions. RESULTS After injection of (11)C-tariquidar or (11)C-elacridar, the brain PET signal corrected for radioactivity in the vasculature was low (~0.1 standardized uptake value), with slow washout. In response to tariquidar injection, a moderate but statistically significant rise in brain PET signal was observed for (11)C-tariquidar (+27% ± 15%, P = 0.014, paired t test) and (11)C-elacridar (+21% ± 15%, P = 0.014) without changes in plasma activity concentrations. Low levels of radiolabeled metabolites (<25%) were detected in plasma up to 60 min after injection of (11)C-tariquidar or (11)C-elacridar. The 2T4K model provided better data fits than the 1T2K model. Model outcome parameters were similar when metabolite-corrected or uncorrected input functions were used. There was no significant correlation between distribution volumes of (11)C-tariquidar or (11)C-elacridar and distribution volumes of (R)-(11)C-verapamil in different brain regions. CONCLUSION The in vivo behavior of (11)C-tariquidar and (11)C-elacridar was consistent with that of dual Pgp/BCRP substrates. Both tracers were unable to visualize cerebral Pgp density, most likely because of insufficiently high binding affinities in relation to the low density of Pgp in human brain (∼1.3 nM). Despite their inability to visualize Pgp density, (11)C-tariquidar and (11)C-elacridar may find use as a new class of radiotracers to study the interplay of Pgp and BCRP at the human BBB in limiting brain uptake of dual substrates.
Collapse
Affiliation(s)
- Martin Bauer
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
136
|
Tavares-Valente D, Baltazar F, Moreira R, Queirós O. Cancer cell bioenergetics and pH regulation influence breast cancer cell resistance to paclitaxel and doxorubicin. J Bioenerg Biomembr 2013; 45:467-75. [DOI: 10.1007/s10863-013-9519-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Accepted: 06/14/2013] [Indexed: 12/29/2022]
|
137
|
Association between lamotrigine concentrations and ABCB1 polymorphisms in patients with epilepsy. Ther Drug Monit 2013; 34:518-25. [PMID: 22972536 DOI: 10.1097/ftd.0b013e31826517c6] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Epilepsy is treated with a variety of anticonvulsants that are often used concomitantly. Therefore, therapeutic drug monitoring is often necessary. Along with clinical and environmental factors, genetic predisposition has been recognized to be relevant for interindividual variability in drug response. Polymorphic transporter proteins such as P-glycoprotein significantly influence pharmacokinetics and bioavailability of many structurally unrelated drugs. The aim of the study was to evaluate the impact of polymorphisms in the P-glycoprotein-encoding gene ABCB1 (C1236T, G2677T/A, C3435T) on antiepileptic drug disposition. METHODS We recruited 222 patients with epilepsy who were prescribed lamotrigine in monotherapy or polytherapy. Lamotrigine plasma concentrations were analyzed and compared with ABCB1 gene variants. The ABCB1 genotyping was performed by real-time polymerase chain reaction methods. The therapeutic drug monitoring was performed by high-performance liquid chromatography-diode array detector (DAD) and immunoassay. RESULTS A significant correlation was confirmed between lamotrigine concentration and additional drugs (P < 0.001). In the whole group, statistical analysis showed correlations between lamotrigine concentrations and ABCB1 C1236T variants: 10.1 and 6.5 μmol/L for CC versus CT + TT, respectively (P = 0.021), and for dose corrected lamotrigine 0.068 and 0.053 μmol·L·mg, for CC versus CT + TT, respectively (P = 0.017). Analysis of a specific haplotype showed that 1236C-2677G-3435C carriers had higher lamotrigine concentrations than 1236T-2677G-3435T carriers (P < 0.001), followed by 1236T-2677T-3435C carriers (P < 0.001). CONCLUSIONS ABCB1 C1236T, G2677T/A, C3435T polymorphisms have an influence on lamotrigine serum concentrations.
Collapse
|
138
|
Tornatore KM, Sudchada P, Dole K, DiFrancesco R, Leca N, Gundroo AC, Danison RT, Attwood K, Wilding GE, Zack J, Forrest A, Venuto RC. Mycophenolic Acid Pharmacokinetics During Maintenance Immunosuppression in African American and Caucasian Renal Transplant Recipients. J Clin Pharmacol 2013; 51:1213-22. [DOI: 10.1177/0091270010382909] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
139
|
Zwisler ST, Enggaard TP, Mikkelsen S, Verstuyft C, Becquemont L, Sindrup SH, Brosen K. Lack of Association ofOPRM1andABCB1Single-Nucleotide Polymorphisms to Oxycodone Response in Postoperative Pain. J Clin Pharmacol 2013; 52:234-42. [DOI: 10.1177/0091270010397729] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
140
|
Wang SY, Duan KM, Li Y, Mei Y, Sheng H, Liu H, Mei X, Ouyang W, Zhou HH, Liu ZQ. Effect of quercetin on P-glycoprotein transport ability in Chinese healthy subjects. Eur J Clin Nutr 2013; 67:390-4. [DOI: 10.1038/ejcn.2013.5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
141
|
Westgeest HM, van Erp NP, Honeywell RJ, Hoekstra R, Peters GJ, Verheul HMW. Successful treatment of renal cell carcinoma with sorafenib after effective but hepatotoxic sunitinib exposure. J Clin Oncol 2013; 31:e83-e86. [PMID: 23182994 DOI: 10.1200/jco.2012.43.6485] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
|
142
|
Özhan G, Kara M, Sari FM, Yanar HT, Ercan G, Alpertunga B. Associations between the functional polymorphisms in the ABCB1 transporter gene and colorectal cancer risk: a case-control study in Turkish population. Toxicol Mech Methods 2013. [PMID: 23193993 DOI: 10.3109/15376516.2012.743639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Colorectal cancer is among the most common cancer types in the world and its etiology involves the interaction of genetic and environmental factors. ABCB1 is highly expressed in the apical surface of colonic epithelial cells and acts as an efflux pump by transporting toxic endogenous substances, drugs and xenobiotics out of cells. ABCB1 polymorphisms may either change its protein expression or alter its function. Several studies have reported a possible association between ABCB1 variants and colorectal cancer, but no consistent conclusion has been arrived at. Therefore, we aimed to investigate the relationship between colorectal cancer and the functional common variants of ABCB1 (1236C > T; 2677G > T/A; 3435C > T). The distributions of the variants were determined in 103 patients with colorectal cancer and 150 healthy volunteers using polymerase chain reaction-restriction fragment length polymorphism methods. ABCB1 1236C > T was statistically significantly associated with colorectal cancer risk (OR, odd ratio = 1.91; 95% CI, confidence interval = 1.09-3.35; p = 0.034). In haplotype-based analysis, the proportion of individuals with the ABCB1 haplotype C1236-G2677-T3435 was significantly more common in patients than in controls (OR = 11.96; 95% CI = 2.59-55.32; p = 0.0004). We believe that the findings may be beneficial to the development of efficacious preventive strategies and therapies for colorectal cancer.
Collapse
Affiliation(s)
- Gül Özhan
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, 34116 Beyazit, Istanbul, Turkey.
| | | | | | | | | | | |
Collapse
|
143
|
Placental transfer of maraviroc in an ex vivo human cotyledon perfusion model and influence of ABC transporter expression. Antimicrob Agents Chemother 2013; 57:1415-20. [PMID: 23295922 DOI: 10.1128/aac.01821-12] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Nowadays, antiretroviral therapy is recommended during pregnancy to prevent mother-to-child transmission of HIV. However, for many antiretroviral drugs, including maraviroc, a CCR5 antagonist, very little data exist regarding placental transfer. Besides, various factors may modulate this transfer, including efflux transporters belonging to the ATP-binding cassette (ABC) transporter superfamily. We investigated maraviroc placental transfer and the influence of ABC transporter expression on this transfer using the human cotyledon perfusion model. Term placentas were perfused ex vivo for 90 min with maraviroc (600 ng/ml) either in the maternal-to-fetal (n = 10 placentas) or fetal-to-maternal (n = 6 placentas) direction. Plasma concentrations were determined by ultra performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). Fetal transfer rates (FTR) and clearance indexes (CLI) were calculated as ratios of fetal to maternal concentrations at steady state (mean values between 30 and 90 min) and ratios of FTR of maraviroc to that of antipyrine, respectively. ABC transporter gene expression levels were determined by quantitative reverse transcription (RT)-PCR and ABCB1 protein expression by Western blotting. For the maternal-to-fetal direction, the mean FTR and CLI were 8.0% ± 3.0 and 0.26 ± 0.07, respectively, whereas the mean CLI was 0.52 ± 0.23 for the fetal-to-maternal direction. We showed a significant inverse correlation between maraviroc CLI and ABCC2, ABCC10, and ABCC11 placental gene expression levels (P < 0.05). To conclude, we report a low maraviroc placental transfer probably involving ABC efflux transporters and thus in all likelihood associated with a limited fetal exposition. Nevertheless, these results would need to be supported by in vivo data obtained from paired maternal and cord blood samples.
Collapse
|
144
|
Takashima T, Wu C, Takashima-Hirano M, Katayama Y, Wada Y, Suzuki M, Kusuhara H, Sugiyama Y, Watanabe Y. Evaluation of breast cancer resistance protein function in hepatobiliary and renal excretion using PET with 11C-SC-62807. J Nucl Med 2013; 54:267-76. [PMID: 23287578 DOI: 10.2967/jnumed.112.110254] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
UNLABELLED A quantitative PET imaging method was used to assess the in vivo kinetics of hepatobiliary and renal excretion of the breast cancer resistance protein (Bcrp) substrate (11)C-SC-62807 in mice. METHODS Serial abdominal PET scans were collected in wild-type and Bcrp knockout (Bcrp(-/-)) mice after intravenous injection of (11)C-SC-62807. Venous blood samples and PET images were obtained at frequent intervals up to 30 min after radiotracer administration. Dynamic PET data were analyzed to determine the canalicular and brush-border efflux clearances in the liver and kidney (CL(int,bile,liver) and CL(int,urine,kidney), respectively). RESULTS SC-62807 is an in vitro substrate of mouse Bcrp and human BCRP. Radioactivity associated with (11)C-SC-62807 was predominantly found in the blood, liver, bile, and urine 30 min after administration. Both biliary and urinary excretion of radioactivity was markedly lower in Bcrp(-/-) mice than in wild-type mice, suggesting greater systemic exposure in Bcrp(-/-) mice. Both the CL(int,bile,liver) and the CL(int,urine,kidney) were significantly lower in Bcrp(-/-) mice (74% ± 10% and 99% ± 1% lower than controls, respectively). We also found that (11)C-SC-62807 is a substrate of the organic anion-transporting polypeptides OATP1B1 and OATP1B3 in vitro. CONCLUSION The present study demonstrated that Bcrp plays a significant role in the efflux of (11)C-SC-62807 in mouse liver and kidney. We also demonstrated the feasibility of PET using (11)C-SC-62807 to study the activity of BCRP in humans.
Collapse
Affiliation(s)
- Tadayuki Takashima
- Molecular Probe Dynamics Laboratory, RIKEN Center for Molecular Imaging Science, Kobe, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
145
|
He T, Mo A, Zhang K, Liu L. ABCB1/MDR1 gene polymorphism and colorectal cancer risk: a meta-analysis of case-control studies. Colorectal Dis 2013; 15:12-8. [PMID: 23279665 DOI: 10.1111/j.1463-1318.2012.02919.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
AIM ABCB1/MDR1 protein is found in high concentrations on the apical surfaces of colonic epithelial cells. It acts as an efflux pump by transporting toxic endogenous substances, drugs and xenobiotics out of cells. Polymorphisms in the ABCB1/MDR1 gene may either change expression of the ABCB1/MDR1 protein or alter its function, suggesting its possible association with colorectal cancer. Several studies have reported a relationship between ABCB1 gene polymorphisms and colorectal cancer risk, but no consistent conclusion has been reached. We therefore conducted a meta-analysis to identify any association between the ABCB1 gene and CRC risk. METHOD PubMed, Embase, Google Scholar, Cbmdisc and CNKI were searched for studies on the relationship of ABCB1/MDR1 gene SNPs and the incidence of colorectal cancer. Eligible articles were included for data extraction. The main outcome was the frequency of ABCB1/MDR1 gene SNPs among cases and controls. Comparison of the distribution of SNPs was performed mainly using Review Manager 5.0. RESULTS Ten, four and two trials were identified that focussed on the ABCB1 gene SNPs rs1045642, rs2032582 and rs3789243, respectively. A total of 3175 cases and 3715 controls were included. The meta-analysis, stratified by ethnicity or population source, indicated no association between the ABCB1 gene rs1045642 polymorphism and colorectal cancer risk. However, when the study by Bae et al. was removed from the analysis, there was some evidence to indicate a higher T-allele frequency in Asian colorectal cancer patients (OR = 1.30, 95% CI: 1.02-1.67, P = 0.03). Neither ABCB1 rs2032582 nor ABCB1 rs3789243 indicated an association with colorectal cancer risk. An increased frequency only of the wild-type combined allele (rs2032582G/rs1045642C) was found in Caucasian patients (OR = 1.22, 95% CI: 1.03-1.44, P = 0.02). CONCLUSION There is some evidence to indicate an association between ABCB1 rs1045642T and colorectal cancer risk in Asians. Compared with the ABCB1 gene SNPs rs1045642, rs2032582 or rs3789243 alone, combined haplotypes of several SNPs might be a better marker to determine the genetic influence on the susceptibility to colorectal cancer among Caucasians.
Collapse
Affiliation(s)
- T He
- Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.156, Wujiadun, Hankou, Wuhan, China
| | | | | | | |
Collapse
|
146
|
Swart M, Ren Y, Smith P, Dandara C. ABCB1 4036A>G and 1236C>T Polymorphisms Affect Plasma Efavirenz Levels in South African HIV/AIDS Patients. Front Genet 2012; 3:236. [PMID: 23133441 PMCID: PMC3488761 DOI: 10.3389/fgene.2012.00236] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 10/16/2012] [Indexed: 01/11/2023] Open
Abstract
The ABCB1 gene encodes P-glycoprotein, an ATP-dependent drug efflux pump, which is responsible for drug transport across extra- and intra-cellular membranes. The variability in the expression of ABCB1 may contribute to variable plasma efavirenz concentration which results in variability in the levels of suppression of the human immunodeficiency syndrome virus (HIV). The aim of the study was to evaluate the role of polymorphisms in ABCB1 gene on plasma efavirenz levels and treatment response in the form of change in viral load and CD-4 cell count in HIV/AIDS patients receiving efavirenz-containing highly active antiretroviral treatment regimens. Two hundred and eighty-two HIV-infected patients were recruited from Themba Lethu Clinic in Johannesburg and plasma efavirenz drug concentration levels were measured using LC-MS/MS. SNaPshot was used to genotype five known ABCB1 single nucleotide polymorphisms (SNPs). Genotype-phenotype correlations were computed. The ABCB1 4036A/G and 4036G/G genotypes were significantly associated with low plasma efavirenz concentrations (P = 0.0236), while the ABCB1 1236C/T and 1236T/T genotypes were associated with high efavirenz concentrations (P = 0.0282). A haplotype ABCB1 T-G-T-A is reported that is associated with significantly increased plasma efavirenz levels. This is the first report on 61A>G, 2677G>T/A, and 4036A>G SNPs in the South African population. ABCB1 plays a role in determining the plasma concentrations of efavirenz and should be taken into account in future design of assays for genotype-based dosing of efavirenz-containing regimens.
Collapse
Affiliation(s)
- Marelize Swart
- Division of Human Genetics, Faculty of Health Sciences, University of Cape Town Observatory, Cape Town, South Africa
| | | | | | | |
Collapse
|
147
|
Impact of ABCC2 polymorphisms on high-dose methotrexate pharmacokinetics in patients with lymphoid malignancy. THE PHARMACOGENOMICS JOURNAL 2012; 13:507-13. [PMID: 23069858 DOI: 10.1038/tpj.2012.37] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 07/30/2012] [Accepted: 08/20/2012] [Indexed: 01/06/2023]
Abstract
Human multidrug resistance-related protein 2 (MRP2, encoded by ABCC2) is involved in the transport of anionic drugs such as methotrexate (MTX). We prospectively investigated the influence of four common ABCC2 genetic variants (rs717620, rs2273697, rs8187694 and rs8187710) on MTX pharmacokinetics parameters. MTX concentrations were monitored in 50 patients with lymphoid malignancy (27 males; mean age: 53±17 years) receiving high-dose MTX (5.13±1.88 g m(-)(2) in a 4-h perfusion). The population pharmacokinetics modelling showed that ABCC2 -24T allele (rs717620) had a combined influence on both MTX elimination and distribution. The MTX clearance and distribution volume were significantly higher in carriers of at least one copy of the -24T allele as compared with noncarriers: 8.6±2.2 vs 6.7± 2.5 l h(-1), P<0.01 and 30.7±7.7 vs 22.1±8.8 l, P<0.001, respectively. Consequently, -24T allele carriers were more prone to reach MTX nontoxic levels, 48 h after administration.
Collapse
|
148
|
O'Brien FE, Clarke G, Fitzgerald P, Dinan TG, Griffin BT, Cryan JF. Inhibition of P-glycoprotein enhances transport of imipramine across the blood-brain barrier: microdialysis studies in conscious freely moving rats. Br J Pharmacol 2012; 166:1333-43. [PMID: 22250926 DOI: 10.1111/j.1476-5381.2012.01858.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND PURPOSE Recent studies indicate that efflux of antidepressants by the multidrug resistance transporter P-glycoprotein (P-gp) at the blood-brain barrier (BBB) may contribute to treatment-resistant depression (TRD) by limiting intracerebral antidepressant concentrations. In addition, clinical experience shows that adjunctive treatment with the P-gp inhibitor verapamil may improve the clinical outcome in TRD. Therefore, the present study aimed to investigate the effect of P-gp inhibition on the transport of the tricyclic antidepressant imipramine and its active metabolite desipramine across the BBB. EXPERIMENTAL APPROACH Intracerebral microdialysis in rats was used to monitor brain levels of imipramine and desipramine following i.v. imipramine administration, with or without pretreatment with one of the P-gp inhibitors verapamil or cyclosporin A (CsA). Plasma drug levels were also determined at regular intervals. KEY RESULTS Pretreatment with either verapamil or CsA resulted in significant increases in imipramine concentrations in the microdialysis samples, without altering imipramine plasma pharmacokinetics. Furthermore, pretreatment with verapamil, but not CsA, led to a significant elevation in plasma and brain levels of desipramine. CONCLUSIONS AND IMPLICATIONS The present study demonstrated that P-gp inhibition enhanced the intracerebral concentration of imipramine , thus supporting the hypothesis that P-gp activity restricts brain levels of certain antidepressants, including imipramine. These findings may help to explain reports of a beneficial response to adjunctive therapy with verapamil in TRD.
Collapse
Affiliation(s)
- F E O'Brien
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | | | | | | | | | | |
Collapse
|
149
|
Pharmacogenomics of phase II metabolizing enzymes and drug transporters: clinical implications. THE PHARMACOGENOMICS JOURNAL 2012; 13:105-9. [PMID: 23044602 DOI: 10.1038/tpj.2012.42] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The clinical impact of pharmacogenomics remains a hot topic of current research efforts. Although pharmacogenomics of phase I metabolizing enzymes seems to have been well studied, knowledge on the clinical impact of genetic variability of phase II metabolizing enzymes and drug transporters is more limited. This paper reviews data on the pharmacogenomics of phase II metabolizing enzymes as well as of ATP binding cassette transporters and of solute carrier transporters focusing on clinical implications for drug efficacy and drug toxicity. The clinical impact of some of these polymorphisms has been well defined i.e. the association between polymorphisms of organic anion transporter polypeptides and statin induced myopathy. However, as the same drug may be substrate for different enzymes and different transporters, it is difficult to elucidate the impact of each polymorphism. Investigating the impact of multiple polymorphisms might be more clinically meaningful, although methodologically challenging.
Collapse
|
150
|
Yan M, Fang PF, Li HD, Xu P, Liu YP, Wang F, Cai HL, Tan QY. Lack of effect of continuous glycyrrhizin administration on the pharmacokinetics of the P-glycoprotein substrate talinolol in healthy volunteers. Eur J Clin Pharmacol 2012; 69:515-21. [DOI: 10.1007/s00228-012-1391-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 08/26/2012] [Indexed: 01/12/2023]
|