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Wang W, Fan J, Li F, Gan S, Zhang J, Wang Y, Li Y, Li W, He Z, Ding H, Sun Y, Zhang T, Jiang Q. Design, synthesis and evaluation of carbamate-bridged amino acid prodrugs of cycloicaritin with improved antitumor activity, aqueous solubility and phase II metabolic stability. Eur J Med Chem 2024; 276:116646. [PMID: 38972080 DOI: 10.1016/j.ejmech.2024.116646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/30/2024] [Accepted: 07/01/2024] [Indexed: 07/09/2024]
Abstract
Cycloicaritin (CICT), a bioactive flavonoid derived from the genus Epimedium, exhibits a variety of beneficial biological activities, including promising anticancer effects. However, its poor oral bioavailability is attributed to its extremely low aqueous solubility and rapid elimination via phase II conjugative metabolism. To overcome these limitations, we designed and synthesized a series of carbamate-bridged prodrugs, protecting the hydroxyl group at the 3-position of cycloicaritin by binding with the N-terminus of a natural amino acid. The optimal prodrug 4b demonstrated a significant increase in aqueous solubility as compared to CICT, as well as improved stability in phase II metabolism, while allowing for a rapid release of CICT in the blood upon gastrointestinal absorption. The prodrug 4b also facilitated oral absorption through organic anion-transporting polypeptide 2B1-mediated transport and exhibited moderate cytotoxicity. Importantly, the prodrug enhanced the oral bioavailability of CICT and displayed dose-dependent antitumor activity with superior safety. In summary, the prodrug 4b is a novel potential antitumor drug candidate, and the carbamate-bridged amino acid prodrug approach is a promising strategy for the oral delivery of CICT.
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Affiliation(s)
- Weiping Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jiaqi Fan
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Fengxiao Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Shuo Gan
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jiaming Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yanfang Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yingchao Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wenchao Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Huaiwei Ding
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yongbing Sun
- Division of Pharmaceutics, National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China.
| | - Tianhong Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Qikun Jiang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100871, China.
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Wang J, Zhou T. Unveiling gut microbiota's role: Bidirectional regulation of drug transport for improved safety. Med Res Rev 2024. [PMID: 39180410 DOI: 10.1002/med.22077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/20/2024] [Accepted: 08/04/2024] [Indexed: 08/26/2024]
Abstract
Drug safety is a paramount concern in the field of drug development, with researchers increasingly focusing on the bidirectional regulation of gut microbiota in this context. The gut microbiota plays a crucial role in maintaining drug safety. It can influence drug transport processes in the body through various mechanisms, thereby modulating their efficacy and toxicity. The main mechanisms include: (1) The gut microbiota directly interacts with drugs, altering their chemical structure to reduce toxicity and enhance efficacy, thereby impacting drug transport mechanisms, drugs can also change the structure and abundance of gut bacteria; (2) bidirectional regulation of intestinal barrier permeability by gut microbiota, promoting the absorption of nontoxic drugs and inhibiting the absorption of toxic components; (3) bidirectional regulation of the expression and activity of transport proteins by gut microbiota, selectively promoting the absorption of effective components or inhibiting the absorption of toxic components. This bidirectional regulatory role enables the gut microbiota to play a key role in maintaining drug balance in the body and reducing adverse reactions. Understanding these regulatory mechanisms sheds light on novel approaches to minimize toxic side effects, enhance drug efficacy, and ultimately improve drug safety. This review systematically examines the bidirectional regulation of gut microbiota in drug transportation from the aforementioned aspects, emphasizing their significance in ensuring drug safety. Furthermore, it offers a prospective outlook from the standpoint of enhancing therapeutic efficacy and reducing drug toxicity, underscoring the importance of further exploration in this research domain. It aims to provide more effective strategies for drug development and treatment.
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Affiliation(s)
- Jinyi Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Tingting Zhou
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai, China
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Kinzi J, Hussner J, Seibert I, Vythilingam M, Vonwyl C, Gherardi C, Detampel P, Schwardt O, Ricklin D, Meyer Zu Schwabedissen HE. Impact of OATP2B1 on Pharmacokinetics of Atorvastatin Investigated in rSlco2b1-Knockout and SLCO2B1-Knockin Rats. Drug Metab Dispos 2024; 52:957-965. [PMID: 39038952 DOI: 10.1124/dmd.124.001686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/05/2024] [Accepted: 06/21/2024] [Indexed: 07/24/2024] Open
Abstract
The organic anion transporting polypeptide (OATP) 2B1 is considered an emerging drug transporter that is found expressed in pharmacokinetically relevant organs such as the liver, small intestine, and kidney. Despite its interaction with various substrate drugs, the understanding of its in vivo relevance is still limited. In this study, we first validated the interaction of atorvastatin with rat OATP2B1 using transiently transfected HeLa cells. Moreover, we characterized our rSlco2b1-knockout and SLCO2B1-knockin rats for mRNA, protein expression, and localization of OATP2B1 in the liver, small intestine, and kidney. The transporter showed the highest expression in the liver followed by the small intestine. In humanized rats, human OATP2B1 is localized on the sinusoidal membrane of hepatocytes. In enterocytes of wild-type and humanized rats, the transporter was detected in the luminal membrane with the vast majority being localized subapical. Subsequently, we assessed atorvastatin pharmacokinetics in male wild-type, rSlco2b1-knockout, and SLCO2B1-knockin rats after a single-dose administration (orally and intravenously). Investigating the contribution of rat OATP2B1 or human OATP2B1 to oral atorvastatin pharmacokinetics revealed no differences in concentration-time profiles or pharmacokinetic parameters. However, when comparing the pharmacokinetics of atorvastatin after intravenous administration in SLCO2B1-humanized rats and knockout animals, notable differences were observed. In particular, the systemic exposure (area under the curve) decreased by approximately 40% in humanized animals, whereas the clearance was 57% higher in animals expressing human OATP2B1. These findings indicate that human OATP2B1 influences pharmacokinetics of atorvastatin after intravenous administration, most likely by contributing to the hepatic uptake. SIGNIFICANCE STATEMENT: Wild-type, rSlco2b1-knockout, and SLCO2B1-humanized Wistar rats were characterized for the expression of rat and human SLCO2B1/OATP2B1. Pharmacokinetic studies of atorvastatin over 24 hours were conducted in male wild-type, rSlco2b1-knockout, and SLCO2B1-humanized rats. After a single-dose intravenous administration, a lower systemic exposure and an increase in clearance were observed in SLCO2B1-humanized rats compared with knockout animals indicating a contribution of OATP2B1 to the hepatic clearance.
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Affiliation(s)
- Jonny Kinzi
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Janine Hussner
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Isabell Seibert
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Mirubagini Vythilingam
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Celina Vonwyl
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Clarisse Gherardi
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Pascal Detampel
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Oliver Schwardt
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Daniel Ricklin
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Henriette E Meyer Zu Schwabedissen
- Biopharmacy (J.K., J.H., I.S., M.V., C.V., C.G., H.E.M.z.S.), Pharmaceutical Technology (P.D.), and Molecular Pharmacy (O.S., D.R.), Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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Prieto Garcia L, Vildhede A, Nordell P, Ahlström C, Montaser AB, Terasaki T, Lennernäs H, Sjögren E. Physiologically based pharmacokinetics modeling and transporter proteomics to predict systemic and local liver and muscle disposition of statins. CPT Pharmacometrics Syst Pharmacol 2024; 13:1029-1043. [PMID: 38576225 PMCID: PMC11179708 DOI: 10.1002/psp4.13139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/22/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
Statins are used to reduce liver cholesterol levels but also carry a dose-related risk of skeletal muscle toxicity. Concentrations of statins in plasma are often used to assess efficacy and safety, but because statins are substrates of membrane transporters that are present in diverse tissues, local differences in intracellular tissue concentrations cannot be ruled out. Thus, plasma concentration may not be an adequate indicator of efficacy and toxicity. To bridge this gap, we used physiologically based pharmacokinetic (PBPK) modeling to predict intracellular concentrations of statins. Quantitative data on transporter clearance were scaled from in vitro to in vivo conditions by integrating targeted proteomics and transporter kinetics data. The developed PBPK models, informed by proteomics, suggested that organic anion-transporting polypeptide 2B1 (OATP2B1) and multidrug resistance-associated protein 1 (MRP1) play a pivotal role in the distribution of statins in muscle. Using these PBPK models, we were able to predict the impact of alterations in transporter function due to genotype or drug-drug interactions on statin systemic concentrations and exposure in liver and muscle. These results underscore the potential of proteomics-guided PBPK modeling to scale transporter clearance from in vitro data to real-world implications. It is important to evaluate the role of drug transporters when predicting tissue exposure associated with on- and off-target effects.
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Affiliation(s)
- Luna Prieto Garcia
- Department of Pharmaceutical Bioscience, Translational Drug Discovery and DevelopmentUppsala UniversityUppsalaSweden
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZenecaGothenburgSweden
| | - Anna Vildhede
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZenecaGothenburgSweden
| | - Pär Nordell
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZenecaGothenburgSweden
| | - Christine Ahlström
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZenecaGothenburgSweden
| | - Ahmed B. Montaser
- School of Pharmacy, Faculty of Health SciencesUniversity of Eastern FinlandKuopioFinland
| | - Tetsuya Terasaki
- School of Pharmacy, Faculty of Health SciencesUniversity of Eastern FinlandKuopioFinland
| | - Hans Lennernäs
- Department of Pharmaceutical Bioscience, Translational Drug Discovery and DevelopmentUppsala UniversityUppsalaSweden
| | - Erik Sjögren
- Department of Pharmaceutical Bioscience, Translational Drug Discovery and DevelopmentUppsala UniversityUppsalaSweden
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5
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Fukazawa N, Nishimura T, Orii K, Noguchi S, Tomi M. Conversion of Olmesartan to Olmesartan Medoxomil, A Prodrug that Improves Intestinal Absorption, Confers Substrate Recognition by OATP2B1. Pharm Res 2024; 41:849-861. [PMID: 38485855 DOI: 10.1007/s11095-024-03687-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/04/2024] [Indexed: 05/25/2024]
Abstract
PURPOSE Olmesartan medoxomil (olmesartan-MX), an ester-type prodrug of the angiotensin II receptor blocker (ARB) olmesartan, is predominantly anionic at intestinal pH. Human organic anion transporting polypeptide 2B1 (OATP2B1) is expressed in the small intestine and is involved in the absorption of various acidic drugs. This study was designed to test the hypothesis that OATP2B1-mediated uptake contributes to the enhanced intestinal absorption of olmesartan-MX, even though olmesartan itself is not a substrate of OATP2B1. METHODS Tetracycline-inducible human OATP2B1- and rat Oatp2b1-overexpressing HEK 293 cell lines (hOATP2B1/T-REx-293 and rOatp2b1/T-REx-293, respectively) were established to characterize OATP2B1-mediated uptake. Rat jejunal permeability was measured using Ussing chambers. ARBs were quantified by liquid chromatography-tandem mass spectrometry. RESULTS Significant olmesartan-MX uptake was observed in hOATP2B1/T-REx-293 and rOatp2b1/T-REx-293 cells, whereas olmesartan uptake was undetectable or much lower than olmesartan-MX uptake, respectively. Furthermore, olmesartan-MX exhibited several-fold higher uptake in Caco-2 cells and greater permeability in rat jejunum compared to olmesartan. Olmesartan-MX uptake in hOATP2B1/T-REx-293 cells and in Caco-2 cells was significantly decreased by OATP2B1 substrates/inhibitors such as 1 mM estrone-3-sulfate, 100 µM rifamycin SV, and 100 µM fluvastatin. Rat Oatp2b1-mediated uptake and rat jejunal permeability of olmesartan-MX were significantly decreased by 50 µM naringin, an OATP2B1 inhibitor. Oral administration of olmesartan-MX with 50 µM naringin to rats significantly reduced the area under the plasma concentration-time curve of olmesartan to 76.9%. CONCLUSION Olmesartan-MX is a substrate for OATP2B1, and the naringin-sensitive transport system contributes to the improved intestinal absorption of olmesartan-MX compared with its parent drug, olmesartan.
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Affiliation(s)
- Naomi Fukazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku 105-8512, Tokyo, Japan
| | - Tomohiro Nishimura
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku 105-8512, Tokyo, Japan
| | - Keisuke Orii
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku 105-8512, Tokyo, Japan
| | - Saki Noguchi
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku 105-8512, Tokyo, Japan
| | - Masatoshi Tomi
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku 105-8512, Tokyo, Japan.
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Li Y, Liu X, Lu F, Li H, Zhang J, Zhang Y, Li W, Wang W, Yang M, Ma Z, Zhang H, Zhou X, Xu Y, He Z, Sun J, Zhang T, Jiang Q. Natural Amino Acid-Bearing Carbamate Prodrugs of Daidzein Increase Water Solubility and Improve Phase II Metabolic Stability for Enhanced Oral Bioavailability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8618-8631. [PMID: 38569082 DOI: 10.1021/acs.jafc.4c01251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Daidzein (DAN) is an isoflavone, and it is often found in its natural form in soybean and food supplements. DAN has poor bioavailability owing to its extremely low water solubility and first-pass metabolism. Herein, we hypothesized that a bioactivatable natural amino acid-bearing carbamate prodrug strategy could increase the water solubility and metabolic stability of DAN. To test our hypothesis, nine amino acid prodrugs of DAN were designed and synthesized. Compared with DAN, the optimal prodrug (daidzein-4'-O-CO-N-isoleucine, D-4'-I) demonstrated enhanced water solubility and improved phase II metabolic stability and activation to DAN in plasma. In addition, unlike the passive transport of DAN, D-4'-I maintained high permeability via organic anion-transporting polypeptide 2B1 (OATP2B1)-mediated transport. Importantly, D-4'-I increased the oral bioavailability by 15.5-fold, reduced the gender difference, and extended the linear absorption capacity in the pharmacokinetics of DAN in rats. Furthermore, D-4'-I exhibited dose-dependent protection against liver injury. Thus, the natural amino acid-bearing carbamate prodrug strategy shows potential in increasing water solubility and improving phase II metabolic stability to enhance the oral bioavailability of DAN.
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Affiliation(s)
- Yingchao Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
- Department of Pharmacy, The Fourth Affiliated Hospital of China Medical University, No. 4, Chongshan Eastern Road, Shenyang, Liaoning 110032, China
| | - Xiaoyu Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Farong Lu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Huichao Li
- Shenyang Sinochem Agrochemicals R&D Co., Ltd., Shenyang 110021, P.R. China
| | - Jiaming Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Yawei Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Wenchao Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Weiping Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Miaomiao Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Zhining Ma
- Kangya of Ningxia Pharmaceutical Co., Ltd., Ningxia 750002, P.R. China
| | - Hui Zhang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaomian Zhou
- School of Life and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Youjun Xu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Jin Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Tianhong Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Qikun Jiang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
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Kwon J, Kim MS, Blagojevic C, Mailloux J, Medwid S, Tirona RG, Wang R, Schwarz UI. Differential effects of OATP2B1 on statin accumulation and toxicity in a beta cell model. Toxicol Mech Methods 2024; 34:130-147. [PMID: 37771097 DOI: 10.1080/15376516.2023.2262568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023]
Abstract
An increased risk of new-onset diabetes mellitus has been recently reported for statin therapy, and experimental studies have shown reduced glucose-stimulated insulin secretion (GSIS) and mitochondrial dysfunction in beta cells with effects differing among agents. Organic anion transporting polypeptide (OATP) 2B1 contributes to hepatic uptake of rosuvastatin, atorvastatin and pravastatin, three known substrates. Since OATP2B1 is present in beta cells of the human pancreas, we investigated if OATP2B1 facilitates the local accumulation of statins in a rat beta cell model INS-1 832/13 (INS-1) thereby amplifying statin-induced toxicity. OATP2B1 overexpression in INS-1 cells via adenoviral transduction showed 2.5-, 1.8- and 1.4-fold higher cellular retention of rosuvastatin, atorvastatin and pravastatin, respectively, relative to LacZ control, while absolute intracellular concentration was about twice as high for the lipophilic atorvastatin compared to the more hydrophilic rosuvastatin and pravastatin. After 24 h statin treatment at high concentrations, OATP2B1 enhanced statin toxicity involving activation of intrinsic apoptosis (caspase 3/7 activation) and mitochondrial dysfunction (NADH dehydrogenase activity) following rosuvastatin and atorvastatin, which was partly reversed by isoprenoids. OATP2B1 had no effect on statin-induced reduction in GSIS, mitochondrial electron transport chain complex expression or caspase 9 activation. We confirmed a dose-dependent reduction in insulin secretion by rosuvastatin and atorvastatin in native INS-1 with a modest change in cellular ATP. Collectively, our results indicate a role of OATP2B1, which is abundant in human beta cells, in statin accumulation and statin-induced toxicity but not insulin secretion of rosuvastatin and atorvastatin in INS-1 cells.
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Affiliation(s)
- Jihoon Kwon
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Michelle S Kim
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Christina Blagojevic
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Jaymie Mailloux
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Samantha Medwid
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Rommel G Tirona
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Rennian Wang
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Ute I Schwarz
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
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Hu Y, Wu J, Cheng B, You R, Yin X, Chen G, Yang L, Zhang Y, Si L, Jiang H, Zhang Y, Huang J, Huang J. Effect of food and polymorphisms in SLCO2B1, CYP3A4 and UGT1A4 on pharmacokinetics of abiraterone and its metabolites in Chinese volunteers. Br J Clin Pharmacol 2024; 90:247-263. [PMID: 37574850 DOI: 10.1111/bcp.15883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 07/03/2023] [Accepted: 08/05/2023] [Indexed: 08/15/2023] Open
Abstract
AIMS Abiraterone acetate, a prodrug of abiraterone (ABI), provides an efficient therapeutic option for metastatic castration-resistant prostate cancer patients. ABI undergoes extensive metabolism in vivo and is transformed into active metabolites Δ4 -abiraterone and 3-keto-5α-abiraterone as well as inactive metabolites abiraterone sulfate and abiraterone N-oxide sulfate. We aimed to examine the effect of polymorphisms in SLCO2B1, CYP3A4 and UGT1A4 on the pharmacokinetics of ABI and its metabolites. METHODS In this study, 81 healthy Chinese subjects were enrolled and divided into 2 groups for fasted (n = 45) and fed (n = 36) studies. Plasma samples were collected after administering a 250 mg abiraterone acetate tablet followed by liquid chromatography-tandem mass spectrometry analysis. Genotyping was performed on a MassARRAY system. The association between SLCO2B1, CYP3A4, UGT1A4 genotype and pharmacokinetic parameters of ABI and its metabolites was assessed. RESULTS Food effect study demonstrated high fat meal remarkedly increased systemic exposure of ABI and its metabolites. The geometric mean ratio and 90% confidence interval of area under the plasma concentration-time curve from time 0 to the time of the last quantifiable concentration (AUC0-t ) and maximum plasma concentration (Cmax ) of ABI in fed state vs. fasted state were 351.64% (286.86%-431.04%) and 478.45% (390.01%-586.94%), respectively, while the corresponding results were ranging from 145.11% to 269.42% and 150.10% to 478.45% for AUC0-t and Cmax of ABI metabolites in fed state vs. fasted state, respectively. The SLCO2B1 rs1077858 had a significant influence on AUC0-t and Cmax , while 7 other SLCO2B1 variants prolonged half-life of ABI under both fasted and fed conditions. As for ABI metabolites, the systemic exposure of Δ4 -abiraterone, abiraterone sulfate and abiraterone N-oxide sulfate as well as the elimination of 3-keto-5α-abiraterone were significantly affected by SLCO2B1 polymorphisms. Polymorphisms in CYP3A4 and UGT1A4 did not significantly affect pharmacokinetics of ABI and its metabolites. CONCLUSION Polymorphisms in SLCO2B1 were significantly related to the pharmacokinetic variability of ABI and its metabolites under both fasted and fed conditions.
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Affiliation(s)
- Yixin Hu
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianyuan Wu
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bingyu Cheng
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rongli You
- Department of Pharmacology, Beijing Zhendong Pharmaceutical Research Institute Co, Ltd, Beijing, China
| | - Xueyan Yin
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- The Third Affiliated Hospital of School of Medicine, Shihezi University, Shihezi, China
| | - Guiying Chen
- Wuhan Hongren Biopharmaceutical Inc., Wuhan, China
| | - Ling Yang
- Wuhan Hongzhi Biomedical Inc., Wuhan, China
| | - Yang Zhang
- Wuhan Hongren Biopharmaceutical Inc., Wuhan, China
| | - Luqin Si
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongliang Jiang
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongjun Zhang
- The Third Affiliated Hospital of School of Medicine, Shihezi University, Shihezi, China
| | - Jianying Huang
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiangeng Huang
- Department of Pharmaceutics, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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9
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Kinzi J, Hussner J, Schäfer AM, Treyer A, Seibert I, Tillmann A, Mueller V, Gherardi C, Vonwyl C, Hamburger M, Meyer Zu Schwabedissen HE. Influence of Slco2b1-knockout and SLCO2B1-humanization on coproporphyrin I and III levels in rats. Br J Pharmacol 2024; 181:36-53. [PMID: 37533302 DOI: 10.1111/bph.16205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/15/2023] [Accepted: 07/20/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND AND PURPOSE Coproporphyrin (CP) I and III are byproducts of haem synthesis currently investigated as biomarkers for drug-drug interactions involving hepatic organic anion transporting polypeptide (OATP) 1B transporters. Another hepatically expressed OATP-member is OATP2B1. The aim of this study was to test the impact of OATP2B1, which specifically transports CPIII, on CP serum levels, applying novel rat models. EXPERIMENTAL APPROACH CPIII transport kinetics and the interplay between OATP2B1 and multidrug resistance-associated proteins (MRPs) were determined in vitro using the vTF7 expression system. Novel rSlco2b1-/- and SLCO2B1+/+ rat models were characterized for physiological parameters and for CP serum levels. Hepatic and renal expression of transporters involved in CP disposition were determined by real-time qPCR, Western blot analysis, and immunohistochemistry. KEY RESULTS In vitro experiments revealed differences in transport kinetics comparing human and rat OATP2B1 and showed a consistent, species-specific interplay with hMRP3/rMRP3. Deletion of rOATP2B1 was associated with a trend towards lower CPI serum levels compared with wildtype rats, while CPIII remained unchanged. Comparing SLCO2B1+/+ with knockout rats revealed an effect of sex: only in females the genetic modification influenced CP serum levels. Analysis of hepatic and renal transporters revealed marginal, but in part, statistically significant differences in rMRP2 abundance, which may contribute to the observed changes in CP serum levels. CONCLUSION AND IMPLICATIONS Our findings support that factors other than OATP1B transporters are of relevance for basal CP levels. Only in female rats, humanization of SLCO2B1 affects basal CPI and CPIII serum levels, despite isomer selectivity of OATP2B1.
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Affiliation(s)
- Jonny Kinzi
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Janine Hussner
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Anima M Schäfer
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Andrea Treyer
- Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Isabell Seibert
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Annika Tillmann
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Vanessa Mueller
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Clarisse Gherardi
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Celina Vonwyl
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Matthias Hamburger
- Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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10
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Li Y, Liu H, Liang T, Han W, Bo Z, Qiu T, Li J, Xu M, Wang W, Yang S, Gui C. Importance of N-Glycosylation for the Expression and Function of Human Organic Anion Transporting Polypeptide 2B1. ACS Pharmacol Transl Sci 2023; 6:1347-1356. [PMID: 37854627 PMCID: PMC10580385 DOI: 10.1021/acsptsci.3c00076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Indexed: 10/20/2023]
Abstract
Human organic anion transporting polypeptide 2B1 (OATP2B1) is a membrane transporter widely expressed in organs crucial for drug absorption and disposition such as the intestine, liver, and kidney. Evidence indicates that OATP2B1 is a glycoprotein. However, the sites of glycosylation and their contribution to the function and expression of OATP2B1 are largely unknown. In this study, by site-directed mutagenesis, we determined that two of four potential N-glycosylation sites in OATP2B1, N176 and N538, are indeed glycosylated. Functional studies revealed that the transport activities of mutants N176Q and N538Q were greatly reduced as compared to that of wild-type OATP2B1. However, the reduced activity was not due to the impairment of transport function per se but due to the decreased surface expression as the Km and normalized Vmax values of N176Q and N538Q were comparable to those of OATP2B1. Quantitative polymerase chain reaction (PCR) revealed that N176Q and N538Q mutations did not affect the expression of OATP2B1 at a transcriptional level. Immunofluorescence analysis showed that deglycosylated OATP2B1 was largely retained in the endoplasmic reticulum, which may activate the endoplasmic reticulum-associated degradation pathway, and the ubiquitin-proteasome system played a major role in the degradation of OATP2B1. Taken together, OATP2B1 is N-glycosylated, and N-glycosylation is essential for the surface expression of OATP2B1 but not critical for the transport function of OATP2B1 per se.
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Affiliation(s)
| | | | | | - Wanjun Han
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Zheyue Bo
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Tian Qiu
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Jiawei Li
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Mingming Xu
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Weipeng Wang
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Shuang Yang
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
| | - Chunshan Gui
- College of Pharmaceutical
Sciences, Soochow University, 199 Renai Road, Suzhou Industrial
Park, Suzhou, Jiangsu 215123, People’s
Republic of China
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11
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Medwid S, Wigle TJ, Ross C, Kim RB. Genetic Variation in miR-27a Is Associated with Fluoropyrimidine-Associated Toxicity in Patients with Dihydropyrimidine Dehydrogenase Variants after Genotype-Guided Dose Reduction. Int J Mol Sci 2023; 24:13284. [PMID: 37686089 PMCID: PMC10487873 DOI: 10.3390/ijms241713284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Dihydropyrimidine dehydrogenase (DPYD) is the rate-limiting enzyme involved in the metabolism of fluoropyrimidine-based chemotherapy. However, single-nucleotide variants (SNVs) in DPYD only partially explain fluoropyrimidine-induced toxicity. The expression of DPYD has previously been shown to be regulated by microRNA-27a (miR-27a) and a common miR-27a SNV (rs895819) has been associated with an increased risk of toxicity in patients harboring a DPYD variant who received standard fluoropyrimidine dosing. We investigated if the miR-27a rs895819 SNV was associated with toxicity in DPYD wildtype patients and carriers of DPYD variants who received a reduced dose. The regulation of DPYD using miR-27a was investigated in HepG2 cells utilizing a miR-27a mimic. miR-27a overexpression decreased DPYD mRNA expression compared to control cells (p < 0.0001). In a cohort of patients that received pre-emptive DPYD genotyping, 45 patients had a DPYD variant and 180 were wildtype. Patients heterozygous for rs895819 had an increased risk of toxicity, which was seen in both patients who were wildtype for DPYD variants (OR (95%CI) = 1.99 (1.00-3.99)) and DPYD variant carriers (OR (95%CI) = 8.10 (1.16-86.21)). Therefore, miR-27a rs895819 may be a clinically relevant predictor of fluoropyrimidine-associated toxicities. Furthermore, toxicity was more profound in DPYD variant carriers, even after DPYD genotype-guided dose reduction. This suggests that patients may benefit from miR-27a genotyping to guide fluoropyrimidine dosing.
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Affiliation(s)
- Samantha Medwid
- Department of Medicine, University of Western Ontario, London, ON N6A 3K7, Canada; (S.M.); (T.J.W.); (C.R.)
- London Health Sciences Centre, London, ON N6A 5A5, Canada
| | - Theodore J. Wigle
- Department of Medicine, University of Western Ontario, London, ON N6A 3K7, Canada; (S.M.); (T.J.W.); (C.R.)
- London Health Sciences Centre, London, ON N6A 5A5, Canada
| | - Cameron Ross
- Department of Medicine, University of Western Ontario, London, ON N6A 3K7, Canada; (S.M.); (T.J.W.); (C.R.)
- London Health Sciences Centre, London, ON N6A 5A5, Canada
| | - Richard B. Kim
- Department of Medicine, University of Western Ontario, London, ON N6A 3K7, Canada; (S.M.); (T.J.W.); (C.R.)
- London Health Sciences Centre, London, ON N6A 5A5, Canada
- Lawson Health Research Institute, London, ON N6C 2R5, Canada
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12
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Li W, Iusuf D, Sparidans RW, Wagenaar E, Wang Y, de Waart DR, Martins MLF, van Hoppe S, Lebre MC, van Tellingen O, Beijnen JH, Schinkel AH. Organic anion-transporting polypeptide 2B1 knockout and humanized mice; insights into the handling of bilirubin and drugs. Pharmacol Res 2023; 190:106724. [PMID: 36907287 DOI: 10.1016/j.phrs.2023.106724] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/25/2023] [Accepted: 03/09/2023] [Indexed: 03/12/2023]
Abstract
Organic anion transporting polypeptide 2B1 (OATP2B1/SLCO2B1) facilitates uptake transport of structurally diverse endogenous and exogenous compounds. To investigate the roles of OATP2B1 in physiology and pharmacology, we established and characterized Oatp2b1 knockout (single Slco2b1-/- and combination Slco1a/1b/2b1-/-) and humanized hepatic and intestinal OATP2B1 transgenic mouse models. While viable and fertile, these strains exhibited a modestly increased body weight. In males, unconjugated bilirubin levels were markedly reduced in Slco2b1-/- compared to wild-type mice, whereas bilirubin monoglucuronide levels were modestly increased in Slco1a/1b/2b1-/- compared to Slco1a/1b-/- mice. Single Slco2b1-/- mice showed no significant changes in oral pharmacokinetics of several tested drugs. However, markedly higher or lower plasma exposure of pravastatin and the erlotinib metabolite OSI-420, respectively, were found in Slco1a/1b/2b1-/- compared to Slco1a/1b-/- mice, while oral rosuvastatin and fluvastatin behaved similarly between the strains. In males, humanized OATP2B1 strains showed lower conjugated and unconjugated bilirubin levels than control Slco1a/1b/2b1-deficient mice. Moreover, hepatic expression of human OATP2B1 partially or completely rescued the impaired hepatic uptake of OSI-420, rosuvastatin, pravastatin, and fluvastatin in Slco1a/1b/2b1-/- mice, establishing an important role in hepatic uptake. Expression of human OATP2B1 in the intestine was basolateral and markedly reduced the oral availability of rosuvastatin and pravastatin, but not of OSI-420 and fluvastatin. Neither lack of Oatp2b1, nor overexpression of human OATP2B1 had any effect on fexofenadine oral pharmacokinetics. While these mouse models still have limitations for human translation, with additional work we expect they will provide powerful tools to further understand the physiological and pharmacological roles of OATP2B1.
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Affiliation(s)
- Wenlong Li
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Dilek Iusuf
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Rolf W Sparidans
- Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacology, Universiteitsweg 99, 3584 CG, Utrecht, the Netherlands
| | - Els Wagenaar
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Yaogeng Wang
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Dirk R de Waart
- Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, Meibergdreef 71, 1105 BK, Amsterdam, the Netherlands
| | - Margarida L F Martins
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Stéphanie van Hoppe
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Maria C Lebre
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Olaf van Tellingen
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Jos H Beijnen
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands; Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology & Clinical Pharmacology, Universiteitsweg 99, 3584 CG Utrecht, the Netherlands; The Netherlands Cancer Institute, Department of Pharmacy & Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Alfred H Schinkel
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands.
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13
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Han H, Akiyoshi T, Morita T, Tsuchitani T, Nabeta M, Yajima K, Imaoka A, Ohtani H. The Effects of Jabara Juice on the Intestinal Permeation of Fexofenadine. Biol Pharm Bull 2023; 46:1745-1752. [PMID: 38044133 DOI: 10.1248/bpb.b23-00479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Jabara juice and its component narirutin inhibit the activity of organic anion-transporting polypeptides (OATPs) 1A2 and OATP2B1, which are considered to play significant roles in the intestinal absorption of fexofenadine. In this study, we investigated the effects of jabara juice on the intestinal absorption of fexofenadine in mice and the inhibitory effects of jabara juice and narirutin on the permeation of fexofenadine using Caco-2 cell monolayers and LLC-GA5-COL300 cell monolayers. In the in vivo study, the area under the plasma concentration-time curve (AUC) of fexofenadine in mice was increased 1.8-fold by jabara juice. In the permeation study, 5% jabara juice significantly decreased the efflux ratio (ER) of fexofenadine for Caco-2 monolayers. Furthermore, the ERs of fexofenadine and digoxin, which is a typical substrate of P-glycoprotein (P-gp), for LLC-GA5-COL300 cell monolayers were decreased in a concentration-dependent manner by jabara juice extract, suggesting that jabara juice may increase the intestinal absorption of fexofenadine by inhibiting P-gp, rather than by narirutin inhibiting OATPs. The present study showed that jabara juice increases the intestinal absorption of fexofenadine both in vivo and in vitro. The intestinal absorption of fexofenadine may be altered by the co-administration of jabara juice in the clinical setting.
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Affiliation(s)
- Hongye Han
- Graduate School of Pharmaceutical Sciences, Keio University
| | - Takeshi Akiyoshi
- Graduate School of Pharmaceutical Sciences, Keio University
- Department of Clinical Pharmacokinetics, School of Medicine, Keio University
| | - Tokio Morita
- Graduate School of Pharmaceutical Sciences, Keio University
| | | | - Momoko Nabeta
- Graduate School of Pharmaceutical Sciences, Keio University
| | - Kodai Yajima
- Graduate School of Pharmaceutical Sciences, Keio University
| | - Ayuko Imaoka
- Graduate School of Pharmaceutical Sciences, Keio University
| | - Hisakazu Ohtani
- Graduate School of Pharmaceutical Sciences, Keio University
- Department of Clinical Pharmacokinetics, School of Medicine, Keio University
- Department of Pharmacy, Keio University Hospital
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14
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Keller DN, Medwid SJ, Ross CD, Wigle TJ, Kim RB. Impact of organic anion transporting polypeptide, P-glycoprotein, and breast cancer resistance protein transporters on observed tamoxifen and endoxifen concentration and adverse effects. Pharmacogenet Genomics 2023; 33:10-18. [PMID: 36373739 DOI: 10.1097/fpc.0000000000000486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Drug transporters are important determinants of drug disposition and response. Tamoxifen is an antiestrogen for breast cancer therapy known for adverse drug reactions (ADRs). In this study, the involvement of OATP transporters in tamoxifen and endoxifen transport was studied in vitro while the impact of single nucleotide variation (SNV) in OATP and efflux transporters P-glycoprotein ( ABCB1 ) and Breast Cancer Resistance Protein ( ABCG2 ) on ADRs during tamoxifen therapy were assessed. METHODS Patients receiving tamoxifen for breast cancer, who were CYP2D6 normal metabolizers were enrolled ( n = 296). Patients completed a survey that captured ADRs and a blood sample was collected. Tamoxifen and endoxifen plasma concentration were measured, while DNA was genotyped for SNVs in ABCB1, ABCG2, SLCO1A2, SLCO1B1 , and SLCO2B1 . HEK293T cells were used to determine the extent of OATP-mediated transport of tamoxifen and endoxifen. RESULTS Common SNVs of ABCB1, ABCG2, SLCO1A2 , and SLCO1B1 were not associated with tamoxifen or endoxifen concentration. However, tamoxifen concentration was significantly higher in carriers of SLCO2B1 c.935G>A (129.8 ng/mL) compared to wildtype (114.9 ng/mL; P = 0.036). Interestingly, subjects who carried SLCO1A2 c.38A>G reported significantly less dizziness ( P = 0.016). In-vitro analysis demonstrated increased cellular accumulation of tamoxifen in cells overexpressing OATP1A2 and 1B1, but endoxifen uptake was not effected in OATP overexpressing cells. CONCLUSIONS We showed that OATP1A2 , a transporter known to be expressed at the blood-brain barrier, is capable of tamoxifen transport. Additionally, OATP1A2 c.38A>G was associated with reduced ADRs. Taken together, our findings suggest genetic variation in OATP transporters may be an important predictor of tamoxifen ADRs.
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Affiliation(s)
| | | | - Cameron D Ross
- Department of Medicine, University of Western Ontario, Canada
| | | | - Richard B Kim
- Department of Medicine, University of Western Ontario, Canada
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15
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Unlu G, Prizer B, Erdal R, Yeh HW, Bayraktar EC, Birsoy K. Metabolic-scale gene activation screens identify SLCO2B1 as a heme transporter that enhances cellular iron availability. Mol Cell 2022; 82:2832-2843.e7. [PMID: 35714613 PMCID: PMC9356996 DOI: 10.1016/j.molcel.2022.05.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/14/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022]
Abstract
Iron is the most abundant transition metal essential for numerous cellular processes. Although most mammalian cells acquire iron through transferrin receptors, molecular players of iron utilization under iron restriction are incompletely understood. To address this, we performed metabolism-focused CRISPRa gain-of-function screens, which revealed metabolic limitations under stress conditions. Iron restriction screens identified not only expected members of iron utilization pathways but also SLCO2B1, a poorly characterized membrane carrier. SLCO2B1 expression is sufficient to increase intracellular iron, bypass the essentiality of the transferrin receptor, and enable proliferation under iron restriction. Mechanistically, SLCO2B1 mediates heme analog import in cellular assays. Heme uptake by SLCO2B1 provides sufficient iron for proliferation through heme oxygenases. Notably, SLCO2B1 is predominantly expressed in microglia in the brain, and primary Slco2b1-/- mouse microglia exhibit strong defects in heme analog import. Altogether, our work identifies SLCO2B1 as a microglia-enriched plasma membrane heme importer and provides a genetic platform to identify metabolic limitations under stress conditions.
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Affiliation(s)
- Gokhan Unlu
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA
| | - Benjamin Prizer
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA
| | - Ranya Erdal
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA; Medical Scientist Training Program, Hacettepe University Faculty of Medicine, Ankara 06230, Turkey
| | - Hsi-Wen Yeh
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA
| | - Erol C Bayraktar
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA
| | - Kıvanç Birsoy
- Laboratory of Metabolic Regulation and Genetics, The Rockefeller University, New York, NY 10065, USA.
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16
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Zamek-Gliszczynski MJ, Sangha V, Shen H, Feng B, Wittwer MB, Varma MVS, Liang X, Sugiyama Y, Zhang L, Bendayan R. Transporters in drug development: International transporter consortium update on emerging transporters of clinical importance. Clin Pharmacol Ther 2022; 112:485-500. [PMID: 35561119 DOI: 10.1002/cpt.2644] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/08/2022] [Indexed: 11/07/2022]
Abstract
During its 4th transporter workshop in 2021, the International Transporter Consortium (ITC) provided updates on emerging clinically relevant transporters for drug development. Previously highlighted and new transporters were considered based on up-to-date clinical evidence of their importance in drug-drug interactions and potential for altered drug efficacy and safety, including drug-nutrient interactions leading to nutrient deficiencies. For the first time, folate transport pathways (PCFT, RFC, and FRα) were examined in-depth as a potential mechanism of drug-induced folate deficiency and related toxicities (e.g., neural tube defects, megaloblastic anemia). However, routine toxicology studies conducted in support of drug development appear sufficient to flag such folate deficiency toxicities, while prospective prediction from in vitro folate metabolism and transport inhibition is not well enough established to inform drug development. Previous suggestion of retrospective study of intestinal OATP2B1 inhibition to explain unexpected decreases in drug exposure were updated. Furthermore, when the absorption of a new molecular entity is more rapid and extensive than can be explained by passive permeability, evaluation of OATP2B1 transport may be considered. Emerging research on hepatic and renal OAT2 is summarized, but current understanding of the importance of OAT2 was deemed insufficient to justify specific consideration for drug development. Hepatic, renal, and intestinal MRPs (MRP2, MRP3, MRP4) were revisited. MRPs may be considered when they are suspected to be the major determinant of drug disposition (e.g., direct glucuronide conjugates); MRP2 inhibition as a mechanistic explanation for drug-induced hyperbilirubinemia remains justified. There were no major changes in recommendations from previous ITC whitepapers.
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Affiliation(s)
| | - Vishal Sangha
- Department of Pharmaceutical Sciences, University of Toronto, Leslie Dan Faculty of Pharmacy, 144 College Street, Toronto, ON, M5S 3M2, Canada
| | - Hong Shen
- Drug Metabolism and PK, Bristol Myers Squibb Company, Route 206 & Province Line Road, Princeton, NJ, 08543, USA
| | - Bo Feng
- Drug Metabolism and PK, Vertex Pharmaceuticals, Inc, 50 Northern Avenue, Boston, MA, 02210, USA
| | - Matthias B Wittwer
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, CH-4070, Basel, Switzerland
| | - Manthena V S Varma
- PK, Dynamics and Metabolism, Medicine Design, Pfizer Inc, Worldwide R&D, Groton, CT, 06340, USA
| | - Xiaomin Liang
- Drug Metabolism, Gilead Sciences, Inc, 333 Lakeside Drive, Foster City, CA, 94404, USA
| | - Yuichi Sugiyama
- Laboratory of Quantitative System PK/Pharmacodynamics, School of Pharmacy, Josai International University, Kioicho Campus, Tokyo, 102-0093, Japan
| | - Lei Zhang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA
| | - Reina Bendayan
- Department of Pharmaceutical Sciences, University of Toronto, Leslie Dan Faculty of Pharmacy, 144 College Street, Toronto, ON, M5S 3M2, Canada
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17
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Yabut J, Houle R, Wang S, Liaw A, Katwaru R, Collier H, Hittle L, Chu X. Selection of an optimal in vitro model to assess P-gp inhibition: comparison of vesicular and bi-directional transcellular transport inhibition assays. Drug Metab Dispos 2022; 50:909-922. [PMID: 35489778 DOI: 10.1124/dmd.121.000807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 04/04/2022] [Indexed: 11/22/2022] Open
Abstract
The multidrug resistance protein 1 (MDR1) P-glycoprotein (P-gp) is a clinically important transporter. In vitro P-gp inhibition assays have been routinely conducted to predict the potential for clinical drug-drug interactions (DDIs) mediated by P-gp. However, high inter- laboratory and inter-system variability of P-gp IC50 data limits accurate prediction of DDIs using static models and decision criteria recommended by regulatory agencies. In this study, we calibrated two in vitro P-gp inhibition models: vesicular uptake of N-methyl-quinidine (NMQ) in MDR1 vesicles and bidirectional transport (BDT) of digoxin in Lilly Laboratories Cell Porcine Kidney 1 cells overexpressing MDR1 (LLC-MDR1) using a total of 48 P-gp inhibitor and non-inhibitor drugs, and digoxin DDI data from 70 clinical studies. Refined thresholds were derived using receiver operating characteristic (ROC) analysis and their predictive performance was compared with the decision frameworks proposed by regulatory agencies and selected reference. Furthermore, the impact of various IC50 calculation methods and non-specific binding of drugs on DDI prediction was evaluated. Our studies suggest that the concentration of inhibitor based on highest approved dose dissolved in 250 ml divided by IC50(I2/IC50) is sufficient to predict P-gp related intestinal DDIs. IC50 obtained from vesicular inhibition assay with a refined threshold of I2/IC50 {greater than or equal to} 25.9 provides comparable predictive power than those measured by net secretory flux and efflux ratio in LLC-MDR1 cells. We therefore recommend vesicular P-gp inhibition as our preferred method given its simplicity, lower variability, higher assay throughput, and more direct estimation of in vitro kinetic parameters than BDT assay. Significance Statement We have conducted comprehensive calibration of two in vitro P-gp inhibition models: uptake in MDR1 vesicles and bidirectional transport in LLC-MDR1 cell monolayers to predict DDIs. Our studies suggest that IC50s obtained from vesicular inhibition with a refined threshold of I2/IC50 ≥ 25.9 provide comparable predictive power than those in LLC-MDR1 cells. We therefore recommend vesicular P-gp inhibition as preferred method given its simplicity, lower variability, higher assay throughput, and more direct estimation of in vitro kinetic parameters.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiaoyan Chu
- Pharmacokinetics, Pharmacodynamics and Drug Metabolism, Merck & Co., Inc., United States
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18
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Morita T, Akiyoshi T, Tsuchitani T, Kataoka H, Araki N, Yajima K, Katayama K, Imaoka A, Ohtani H. Inhibitory Effects of Cranberry Juice and Its Components on Intestinal OATP1A2 and OATP2B1: Identification of Avicularin as a Novel Inhibitor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3310-3320. [PMID: 35230114 DOI: 10.1021/acs.jafc.2c00065] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Organic anion-transporting polypeptide (OATP) 1A2 and OATP2B1 mediate the intestinal absorption of drugs. This study aimed to identify fruit juices or fruit juice components that inhibit OATPs and assess the risk of associated food-drug interactions. Inhibitory potency was assessed by examining the uptake of [3H]estrone 3-sulfate and [3H]fexofenadine into HEK293 cells expressing OATP1A2 or OATP2B1. In vivo experiments were conducted using mice to evaluate the effects of cranberry juice on the pharmacokinetics of orally administered fexofenadine. Of eight examined fruit juices, cranberry juice inhibited the functions of both OATPs most potently. Avicularin, a component of cranberry juice, was identified as a novel OATP inhibitor. It exhibited IC50 values of 9.0 and 37 μM for the inhibition of estrone 3-sulfate uptake mediated by OATP1A2 and OATP2B1, respectively. A pharmacokinetic experiment revealed that fexofenadine exposure was significantly reduced (by 50%) by cranberry juice. Cranberry juice may cause drug interactions with OATP substrates.
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Affiliation(s)
- Tokio Morita
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Takeshi Akiyoshi
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Toshiaki Tsuchitani
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Hiroki Kataoka
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Naoya Araki
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Kodai Yajima
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Kazuhiro Katayama
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
| | - Ayuko Imaoka
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Hisakazu Ohtani
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
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19
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Uddin ME, Moseley A, Hu S, Sparreboom A. Contribution of membrane transporters to chemotherapy-induced cardiotoxicity. Basic Clin Pharmacol Toxicol 2022; 130 Suppl 1:36-47. [PMID: 34237188 DOI: 10.1111/bcpt.13635] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/30/2021] [Accepted: 07/06/2021] [Indexed: 11/27/2022]
Abstract
Membrane transporters play a key role in determining the pharmacokinetic profile, therapeutic safety, and efficacy of many chemotherapeutic drugs by regulating cellular influx and efflux. Rapidly emerging evidence has shown that tissue-specific expression of transporters contributes to local drug accumulation and drug-drug interactions and that functional alterations in these transporters can directly influence an individual's susceptibility to drug-induced toxicity. Comprehending the complex mechanism of transporter function in regulating drug distribution in tissues, such as the heart, is necessary in order to acquire novel therapeutic strategies aimed at evading unwanted drug accumulation and toxicities and to ameliorate the safety of current therapeutic regimens. Here, we provide an overview of membrane transporters with a role in chemotherapy-induced cardiotoxicity and discuss novel strategies to improve therapeutic outcomes.
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Affiliation(s)
- Muhammad Erfan Uddin
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
| | - Angie Moseley
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
| | - Shuiying Hu
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
| | - Alex Sparreboom
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
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20
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Hussner J, Foletti A, Seibert I, Fuchs A, Schuler E, Malagnino V, Grube M, Meyer Zu Schwabedissen HE. Differences in transport function of the human and rat orthologue of the Organic Anion Transporting Polypeptide 2B1 (OATP2B1). Drug Metab Pharmacokinet 2021; 41:100418. [PMID: 34628357 DOI: 10.1016/j.dmpk.2021.100418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/30/2021] [Accepted: 08/17/2021] [Indexed: 01/02/2023]
Abstract
The human drug transporter Organic Anion Transporting Polypeptide (hOATP)2B1 facilitates cellular uptake of its substrates. Various studies suggest that hOATP2B1 is involved in intestinal absorption, but preclinical evaluations performed in rodents do not support this. Thus, our study aimed to compare the expression and function of hOATP2B1 with its orthologue in rats (rOatp2b1). Even if the general expression pattern was comparable, the transporters exhibited substantial differences on functional level. While bromosulfophthalein and atorvastatin were substrates of both transporters, the steroid sulfate conjugates estrone 3-sulfate (E1S), progesterone sulfate and dehydroepiandrosterone sulfate were only transported by hOATP2B1. To further elucidate these functional differences, experiments searching for the E1S substrate recognition site were conducted generating human-rat chimera as well as partly humanized variants of rOatp2b1. The rOatp2b1-329-hOATP2B1 chimera led to a significant increase in E1S uptake suggesting the C-terminal part of the human transporter is involved. However, humanization of various regions within this part, namely of the transmembrane domain (TMD)-9, TMD-10 or the extracellular loop-5 did not significantly change E1S transport function. Replacement of the intracellular loop-3, slightly enhanced cellular accumulation of sulfated steroids. Taken together, we report that OATP2B1 exhibited differences in recognition of steroid sulfate conjugates comparing the rat and human orthologues.
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Affiliation(s)
- Janine Hussner
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Annalise Foletti
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Isabell Seibert
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Anja Fuchs
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Eveline Schuler
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Vanessa Malagnino
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Markus Grube
- Institute of Pharmacology, C_DAT Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
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21
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Medwid S, Price HR, Taylor DP, Mailloux J, Schwarz UI, Kim RB, Tirona RG. Organic Anion Transporting Polypeptide 2B1 (OATP2B1) Genetic Variants: In Vitro Functional Characterization and Association With Circulating Concentrations of Endogenous Substrates. Front Pharmacol 2021; 12:713567. [PMID: 34594217 PMCID: PMC8476882 DOI: 10.3389/fphar.2021.713567] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Organic anion transporting polypeptide 2B1 (OATP2B1, gene SLCO2B1) is an uptake transporter that is thought to determine drug disposition and in particular, the oral absorption of medications. At present, the clinical relevance of SLCO2B1 genetic variation on pharmacokinetics is poorly understood. We sought to determine the functional activity of 5 of the most common missense OATP2B1 variants (c.76_84del, c.601G>A, c.917G>A, c.935G>A, and c.1457C>T) and a predicted dysfunctional variant (c.332G>A) in vitro. Furthermore, we measured the basal plasma concentrations of endogenous OATP2B1 substrates, namely estrone sulfate, dehydroepiandrosterone sulfate (DHEAS), pregnenolone sulfate, coproporphyrin I (CPI), and CPIII, and assessed their relationships with SLCO2B1 genotypes in 93 healthy participants. Compared to reference OATP2B1, the transport activities of the c.332G>A, c.601G>A and c.1457C>T variants were reduced among the substrates examined (estrone sulfate, DHEAS, CPI, CPIII and rosuvastatin), although there were substrate-dependent effects. Lower transport function of OATP2B1 variants could be explained by diminished cell surface expression. Other OATP2B1 variants (c.76-84del, c.917G>A and c.935G>A) had similar activity to the reference transporter. In the clinical cohort, the SLCO2B1 c.935G>A allele was associated with both higher plasma CPI (42%) and CPIII (31%) concentrations, while SLCO2B1 c.917G>A was linked to lower plasma CPIII by 28% after accounting for the effects of age, sex, and SLCO1B1 genotypes. No association was observed between SLCO2B1 variant alleles and estrone sulfate or DHEAS plasma concentrations, however 45% higher plasma pregnenolone sulfate level was associated with SLCO2B1 c.1457C>T. Taken together, we found that the impacts of OATP2B1 variants on transport activities in vitro were not fully aligned with their associations to plasma concentrations of endogenous substrates in vivo. Additional studies are required to determine whether circulating endogenous substrates reflect OATP2B1 activity.
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Affiliation(s)
- Samantha Medwid
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada.,Division of Clinical Pharmacology, Department of Medicine, University of Western Ontario, London, ON, Canada
| | - Hayley R Price
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada
| | - Daniel P Taylor
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada
| | - Jaymie Mailloux
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada.,Division of Clinical Pharmacology, Department of Medicine, University of Western Ontario, London, ON, Canada
| | - Ute I Schwarz
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada.,Division of Clinical Pharmacology, Department of Medicine, University of Western Ontario, London, ON, Canada
| | - Richard B Kim
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada.,Division of Clinical Pharmacology, Department of Medicine, University of Western Ontario, London, ON, Canada.,Department of Oncology, Schulich School of Medicine, University of Western Ontario, London, ON, Canada
| | - Rommel G Tirona
- Department of Physiology & Pharmacology, University of Western Ontario, London, ON, Canada.,Division of Clinical Pharmacology, Department of Medicine, University of Western Ontario, London, ON, Canada
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22
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Sakurai K, Kuroda T, Abe J, Toda H, Kitamoto S. Identification of the organic anion transporting polypeptides responsible for the hepatic uptake of the major metabolite of epyrifenacil, S-3100-CA, in mice. Pharmacol Res Perspect 2021; 9:e00877. [PMID: 34619012 PMCID: PMC8496750 DOI: 10.1002/prp2.877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/07/2021] [Indexed: 01/06/2023] Open
Abstract
Epyrifenacil is a novel herbicide that acts as an inhibitor of protoporphyrinogen oxidase (PPO) and produces hepatotoxicity in rodents by inhibiting PPO. Our previous research revealed that the causal substance of hepatotoxicity is S-3100-CA, a major metabolite of epyrifenacil, and that human hepatocyte uptake of S-3100-CA was significantly lower than rodent one, suggesting less relevant to hepatotoxicity in humans. To clarify the species difference in the uptake of S-3100-CA, we focused on organic anion transporting polypeptides (OATPs) and carried out an uptake assay using human, rat, and mouse OATP hepatic isoforms-expressing 293FT cells. As a result, all the examined OATPs were found to contribute to the S-3100-CA uptake, suggesting that the species difference was not due to the differences in selectivity toward OATP isoforms. When [14 C]epyrifenacil was administered to mice, the liver concentration of S-3100-CA was higher in males than in females. Furthermore, when [14 C]epyrifenacil was administered with OATP inhibitors, the liver/plasma ratio of S-3100-CA was significantly decreased by rifampicin, an Oatp1a1/Oatp1a4 inhibitor in mice, but not by digoxin, an Oatp1a4-specific inhibitor. This result indicates that Oatp1a1, the predominant transporter in male mice, is the main contributor to the hepatic transport of S-3100-CA, and consequently to the gender difference. Moreover, we conclude that the species difference in the hepatic uptake of S-3100-CA observed in our previous research is not due to differences in the selectivity toward OATP isoforms but rather to the significantly higher expression of OATPs which mediate uptake of S-3100-CA in rodents than in humans.
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Affiliation(s)
- Kengo Sakurai
- Environmental Health Science LaboratorySumitomo Chemical Co., Ltd.OsakaJapan
| | - Tomohiro Kuroda
- Environmental Health Science LaboratorySumitomo Chemical Co., Ltd.OsakaJapan
| | - Jun Abe
- Environmental Health Science LaboratorySumitomo Chemical Co., Ltd.OsakaJapan
| | - Hiroshi Toda
- Environmental Health Science LaboratorySumitomo Chemical Co., Ltd.OsakaJapan
| | - Sachiko Kitamoto
- Environmental Health Science LaboratorySumitomo Chemical Co., Ltd.OsakaJapan
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23
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Chothe PP, Nakakariya M, Rotter CJ, Sandoval P, Tohyama K. Recent Advances in Drug Transporter Sciences: Highlights From the Year 2020. Drug Metab Rev 2021; 53:321-349. [PMID: 34346798 DOI: 10.1080/03602532.2021.1963270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Drug Metabolism Reviews has an impressive track record of providing scientific reviews in the area of xenobiotic biotransformation over 47 years. It has consistently proved to be resourceful to many scientists from pharmaceutical industry, academia, regulatory agencies working in diverse areas including enzymology, pharmacology, pharmacokinetics and toxicology. Over the last 5 years Drug metabolism Reviews has annually published an industry commentary aimed to highlight novel insights and approaches that have made significant impacts on the field of biotransformation (led by Cyrus Khojasteh). We hope to continue this tradition by providing an overview of advances made in the field of drug transporters during 2020. The field of drug transporters is rapidly evolving as they play an essential role in drug absorption, distribution, clearance and elimination. In this review we have selected outstanding drug transporter articles that have significantly contributed to moving forward the field of transporter science with respect to translation and improved understanding of diverse aspects including uptake clearance, clinical biomarkers, induction, proteomics, emerging transporters and tissue targeting.The theme of this review consists of synopsis that summarizes each article followed by our commentary. The objective of this work is not to provide a comprehensive review but rather exemplify novel insights and state-of-the-art highlights of recent research that have advanced our understanding of drug transporters in drug disposition. We are hopeful that this effort will prove useful to the scientific community and as such request feedback, and further extend an invitation to anyone interested in contributing to future reviews.
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Affiliation(s)
- Paresh P Chothe
- Global Drug Metabolism and Pharmacokinetics, Takeda Pharmaceutical Company Limited, 35 Landsdowne Street, Cambridge, Massachusetts, 02139, USA
| | - Masanori Nakakariya
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chrome, Fujisawa, Kanagawa, 251-8555, Japan
| | - Charles J Rotter
- Global Drug Metabolism and Pharmacokinetics, Takeda California Incorporated, 9625 Towne Centre Drive, San Diego, California, 92121, USA
| | - Philip Sandoval
- Global Drug Metabolism and Pharmacokinetics, Takeda Pharmaceutical Company Limited, 35 Landsdowne Street, Cambridge, Massachusetts, 02139, USA
| | - Kimio Tohyama
- Global Drug Metabolism and Pharmacokinetics, Takeda Pharmaceutical Company Limited, 35 Landsdowne Street, Cambridge, Massachusetts, 02139, USA
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24
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Imaging-Based Characterization of a Slco2b1(-/-) Mouse Model Using [ 11C]Erlotinib and [ 99mTc]Mebrofenin as Probe Substrates. Pharmaceutics 2021; 13:pharmaceutics13060918. [PMID: 34205780 PMCID: PMC8233734 DOI: 10.3390/pharmaceutics13060918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 01/19/2023] Open
Abstract
Organic anion-transporting polypeptide 2B1 (OATP2B1) is co-localized with OATP1B1 and OATP1B3 in the basolateral hepatocyte membrane, where it is thought to contribute to the hepatic uptake of drugs. We characterized a novel Slco2b1(-/-) mouse model using positron emission tomography (PET) imaging with [11C]erlotinib (a putative OATP2B1-selective substrate) and planar scintigraphic imaging with [99mTc]mebrofenin (an OATP1B1/1B3 substrate, which is not transported by OATP2B1). Dynamic 40-min scans were performed after intravenous injection of either [11C]erlotinib or [99mTc]mebrofenin in wild-type and Slco2b1(-/-) mice. A pharmacokinetic model was used to estimate the hepatic uptake clearance (CL1) and the rate constants for transfer of radioactivity from the liver to the blood (k2) and excreted bile (k3). CL1 was significantly reduced in Slco2b1(-/-) mice for both radiotracers (p < 0.05), and k2 was significantly lower (p < 0.01) in Slco2b1(-/-) mice for [11C]erlotinib, but not for [99mTc]mebrofenin. Our data support previous evidence that OATP transporters may contribute to the hepatic uptake of [11C]erlotinib. However, the decreased hepatic uptake of the OATP1B1/1B3 substrate [99mTc]mebrofenin in Slco2b1(-/-) mice questions the utility of this mouse model to assess the relative contribution of OATP2B1 to the liver uptake of drugs which are substrates of multiple OATPs.
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25
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Russell LE, Zhou Y, Almousa AA, Sodhi JK, Nwabufo CK, Lauschke VM. Pharmacogenomics in the era of next generation sequencing - from byte to bedside. Drug Metab Rev 2021; 53:253-278. [PMID: 33820459 DOI: 10.1080/03602532.2021.1909613] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pharmacogenetic research has resulted in the identification of a multitude of genetic variants that impact drug response or toxicity. These polymorphisms are mostly common and have been included as actionable information in the labels of numerous drugs. In addition to common variants, recent advances in Next Generation Sequencing (NGS) technologies have resulted in the identification of a plethora of rare and population-specific pharmacogenetic variations with unclear functional consequences that are not accessible by conventional forward genetics strategies. In this review, we discuss how comprehensive sequencing information can be translated into personalized pharmacogenomic advice in the age of NGS. Specifically, we provide an update of the functional impacts of rare pharmacogenetic variability and how this information can be leveraged to improve pharmacogenetic guidance. Furthermore, we critically discuss the current status of implementation of pharmacogenetic testing across drug development and layers of care. We identify major gaps and provide perspectives on how these can be minimized to optimize the utilization of NGS data for personalized clinical decision-support.
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Affiliation(s)
| | - Yitian Zhou
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Ahmed A Almousa
- Department of Pharmacy, London Health Sciences Center, Victoria Hospital, London, ON, Canada
| | - Jasleen K Sodhi
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California San Francisco, San Francisco, CA, USA.,Department of Drug Metabolism and Pharmacokinetics, Plexxikon, Inc., Berkeley, CA, USA
| | | | - Volker M Lauschke
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
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26
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Wenzel C, Drozdzik M, Oswald S. Organic Cation Transporter 1 an Intestinal Uptake Transporter: Fact or Fiction? Front Pharmacol 2021; 12:648388. [PMID: 33935750 PMCID: PMC8080103 DOI: 10.3389/fphar.2021.648388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/01/2021] [Indexed: 01/11/2023] Open
Abstract
Intestinal transporter proteins are known to affect the pharmacokinetics and in turn the efficacy and safety of many orally administered drugs in a clinically relevant manner. This knowledge is especially well-established for intestinal ATP-binding cassette transporters such as P-gp and BCRP. In contrast to this, information about intestinal uptake carriers is much more limited although many hydrophilic or ionic drugs are not expected to undergo passive diffusion but probably require specific uptake transporters. A transporter which is controversially discussed with respect to its expression, localization and function in the human intestine is the organic cation transporter 1 (OCT1). This review article provides an up-to-date summary on the available data from expression analysis as well as functional studies in vitro, animal findings and clinical observations. The current evidence suggests that OCT1 is expressed in the human intestine in small amounts (on gene and protein levels), while its cellular localization in the apical or basolateral membrane of the enterocytes remains to be finally defined, but functional data point to a secretory function of the transporter at the basolateral membrane. Thus, OCT1 should not be considered as a classical uptake transporter in the intestine but rather as an intestinal elimination pathway for cationic compounds from the systemic circulation.
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Affiliation(s)
- Christoph Wenzel
- Department of Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - Stefan Oswald
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany
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27
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Kinzi J, Grube M, Meyer Zu Schwabedissen HE. OATP2B1 - The underrated member of the organic anion transporting polypeptide family of drug transporters? Biochem Pharmacol 2021; 188:114534. [PMID: 33794186 DOI: 10.1016/j.bcp.2021.114534] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 12/28/2022]
Abstract
The organic anion transporting polypeptide 2B1 (OATP2B1) was one of the first cloned members of the SLCO family. However, its physiological and pharmacological role is still poorly understood, and object of a current debate on the transporter's relevance. Within this commentary, we summarize the data currently available on the transporter's expression and its substrates and highlight the strength and difficulties of the methods that have been applied to gather these data. The conclusion drawn from these findings was that OATP2B1 due to its intestinal expression is most likely involved in oral drug absorption of its substrate and therefore prone for interactions. This has been tested in in vivo drug interaction and/or pharmacogenetic studies. While some of these support the notion of OATP2B1 being of relevance in drug absorption, the pharmacogenetic findings are rather inconclusive. We will explain our thoughts why OATP2B1 may not influence the general systemic pharmacokinetic of certain substrates, but possibly local distribution processes, like the transfer across the blood-brain-barrier. Besides the pharmacokinetic aspects, there are data on endogenous molecules like coproporphyrins and sulfated steroids. Therefore, we will also highlight possible physiological roles of OATP2B1, which are driven by its expression pattern in the tubular cells of the kidney as well as its expression in the blood brain barrier. Finally we also deal with the advantages and disadvantages in the use of animal models to decipher the role of OATP2B1 in pharmacokinetics of its substrates and beyond.
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Affiliation(s)
- Jonny Kinzi
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Markus Grube
- Center of Drug Absorption and Transport, University Medicine Greifswald, Greifswald, Germany
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28
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Russell LE, DeGorter MK, Ho RH, Leake BF, Schmerk CL, Mansell SE, Kim RB. Mouse NTCP–Mediated Rosuvastatin Uptake In Vitro and in Slc10a1-Deficient Mice. AAPS JOURNAL 2021; 23:17. [DOI: 10.1208/s12248-020-00540-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022]
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29
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Arlauckas S, Oh N, Li R, Weissleder R, Miller MA. Macrophage imaging and subset analysis using single-cell RNA sequencing. Nanotheranostics 2021; 5:36-56. [PMID: 33391974 PMCID: PMC7738942 DOI: 10.7150/ntno.50185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/19/2020] [Indexed: 12/12/2022] Open
Abstract
Macrophages have been associated with drug response and resistance in diverse settings, thus raising the possibility of using macrophage imaging as a companion diagnostic to inform personalized patient treatment strategies. Nanoparticle-based contrast agents are especially promising because they efficiently deliver fluorescent, magnetic, and/or radionuclide labels by leveraging the intrinsic capacity of macrophages to accumulate nanomaterials in their role as professional phagocytes. Unfortunately, current clinical imaging modalities are limited in their ability to quantify broad molecular programs that may explain (a) which particular cell subsets a given imaging agent is actually labeling, and (b) what mechanistic role those cells play in promoting drug response or resistance. Highly multiplexed single-cell approaches including single-cell RNA sequencing (scRNAseq) have emerged as resources to help answer these questions. In this review, we query recently published scRNAseq datasets to support companion macrophage imaging, with particular focus on using dextran-based nanoparticles to predict the action of anti-cancer nanotherapies and monoclonal antibodies.
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Affiliation(s)
- Sean Arlauckas
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Nuri Oh
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Ran Li
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02115, USA.,Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Miles A Miller
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02115, USA
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30
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Liu W, Nakano M, Nakanishi T, Nakajima M, Tamai I. Post-transcriptional regulation of OATP2B1 transporter by a microRNA, miR-24. Drug Metab Pharmacokinet 2020; 35:515-521. [DOI: 10.1016/j.dmpk.2020.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 12/26/2022]
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Morita T, Akiyoshi T, Sato R, Uekusa Y, Katayama K, Yajima K, Imaoka A, Sugimoto Y, Kiuchi F, Ohtani H. Citrus Fruit-Derived Flavanone Glycoside Narirutin is a Novel Potent Inhibitor of Organic Anion-Transporting Polypeptides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14182-14191. [PMID: 33210911 DOI: 10.1021/acs.jafc.0c06132] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organic anion-transporting polypeptides (OATPs) 1A2 and OATP2B1 are expressed in the small intestine and are involved in drug absorption. We identified narirutin, which is present in grapefruit juice, as a novel OATP inhibitor. The citrus fruit jabara also contains high levels of narirutin; therefore, we investigated the inhibitory potency of jabara juice against OATPs. The inhibitory effects of various related compounds on the transport activity of OATPs were evaluated using OATP-expressing HEK293 cells. The IC50 values of narirutin for OATP1A2- and OATP2B1-mediated transport were 22.6 and 18.2 μM, respectively. Other flavanone derivatives from grapefruit juice also inhibited OATP1A2/OATP2B1-mediated transport (order of inhibitory potency: naringenin > narirutin > naringin). Five percent jabara juice significantly inhibited OATP1A2- and OATP2B1-mediated transport by 67 ± 11 and 81 ± 5.5%, respectively (p < 0.05). Based on their inhibitory potency and levels in grapefruit juice, the inhibition of OATPs by grapefruit juice is attributable to both naringin and narirutin. Citrus × jabara, which contains narirutin, potently inhibits OATP-mediated transport.
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Affiliation(s)
- Tokio Morita
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Takeshi Akiyoshi
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Ryo Sato
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Yoshinori Uekusa
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Kazuhiro Katayama
- School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan
| | - Kodai Yajima
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Ayuko Imaoka
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Yoshikazu Sugimoto
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Fumiyuki Kiuchi
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Hisakazu Ohtani
- Graduate School of Pharmaceutical Sciences, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
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32
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Tikkanen A, Pierrot E, Deng F, Sánchez VB, Hagström M, Koenderink JB, Kidron H. Food Additives as Inhibitors of Intestinal Drug Transporter OATP2B1. Mol Pharm 2020; 17:3748-3758. [PMID: 32845645 DOI: 10.1021/acs.molpharmaceut.0c00507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Food additives are compounds that are added to food and beverage to improve the taste, color, preservation, or composition. Generally, food additives are considered safe for human use due to safety evaluations conducted by food safety authorities and high safety margins applied to permitted usage levels. However, the interaction potential of food additives with simultaneously administered medication has not received much attention. Even though many food additives are poorly absorbed into systemic circulation, high concentrations could exist in the intestinal lumen, making intestinal drug transporters, such as the uptake transporter organic anion transporting polypeptide 2B1 (OATP2B1), a possible site of food additive-drug interactions. In the present work, we aimed to characterize the interaction of a selection of 25 food additives including colorants, preservatives, and sweeteners with OATP2B1 in vitro. In human embryonic kidney 293 (HEK293) cells transiently overexpressing OATP2B1 or control, uptake of dibromofluorescein was studied with and without 50 μM food additive at pH 7.4. As OATP2B1 displays substrate- and pH-dependent transport functions and the intraluminal pH varies along the gastrointestinal tract, we performed the studies also at pH 5.5 using estrone sulfate as an OATP2B1 substrate. Food additives that inhibited OATP2B1-mediated substrate transport by ≥50% were subjected to dose-response studies. Six colorants were identified and validated as OATP2B1 inhibitors at pH 5.5, but only three of these were categorized as inhibitors at pH 7.4. One sweetener was validated as an inhibitor under both assay conditions, whereas none of the preservatives exhibited ≥50% inhibition of OATP2B1-mediated transport. Extrapolation of computed inhibitory constants (Ki values) to estimations of intestinal food additive concentrations implies that selected colorants could inhibit intestinal OATP2B1 also in vivo. These results suggest that food additives, especially colorants, could alter the pharmacokinetics of orally administered OATP2B1 substrate drugs, although further in vivo studies are warranted to understand the overall clinical consequences of the findings.
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Affiliation(s)
- Alli Tikkanen
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Estelle Pierrot
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Feng Deng
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland.,Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki, 00100 Helsinki, Finland
| | - Virginia Barras Sánchez
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Marja Hagström
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Jan B Koenderink
- Department of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525 EZ, The Netherlands
| | - Heidi Kidron
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
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Uptake Transporters of the SLC21, SLC22A, and SLC15A Families in Anticancer Therapy-Modulators of Cellular Entry or Pharmacokinetics? Cancers (Basel) 2020; 12:cancers12082263. [PMID: 32806706 PMCID: PMC7464370 DOI: 10.3390/cancers12082263] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/16/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022] Open
Abstract
Solute carrier transporters comprise a large family of uptake transporters involved in the transmembrane transport of a wide array of endogenous substrates such as hormones, nutrients, and metabolites as well as of clinically important drugs. Several cancer therapeutics, ranging from chemotherapeutics such as topoisomerase inhibitors, DNA-intercalating drugs, and microtubule binders to targeted therapeutics such as tyrosine kinase inhibitors are substrates of solute carrier (SLC) transporters. Given that SLC transporters are expressed both in organs pivotal to drug absorption, distribution, metabolism, and elimination and in tumors, these transporters constitute determinants of cellular drug accumulation influencing intracellular drug concentration required for efficacy of the cancer treatment in tumor cells. In this review, we explore the current understanding of members of three SLC families, namely SLC21 (organic anion transporting polypeptides, OATPs), SLC22A (organic cation transporters, OCTs; organic cation/carnitine transporters, OCTNs; and organic anion transporters OATs), and SLC15A (peptide transporters, PEPTs) in the etiology of cancer, in transport of chemotherapeutic drugs, and their influence on efficacy or toxicity of pharmacotherapy. We further explore the idea to exploit the function of SLC transporters to enhance cancer cell accumulation of chemotherapeutics, which would be expected to reduce toxic side effects in healthy tissue and to improve efficacy.
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Zou L, Spanogiannopoulos P, Pieper LM, Chien HC, Cai W, Khuri N, Pottel J, Vora B, Ni Z, Tsakalozou E, Zhang W, Shoichet BK, Giacomini KM, Turnbaugh PJ. Bacterial metabolism rescues the inhibition of intestinal drug absorption by food and drug additives. Proc Natl Acad Sci U S A 2020; 117:16009-16018. [PMID: 32571913 PMCID: PMC7355017 DOI: 10.1073/pnas.1920483117] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Food and drug products contain diverse and abundant small-molecule additives (excipients) with unclear impacts on human physiology, drug safety, and response. Here, we evaluate their potential impact on intestinal drug absorption. By screening 136 unique compounds for inhibition of the key intestinal transporter OATP2B1 we identified and validated 24 potent OATP2B1 inhibitors, characterized by higher molecular weight and hydrophobicity compared to poor or noninhibitors. OATP2B1 inhibitors were also enriched for dyes, including 8 azo (R-N=N-R') dyes. Pharmacokinetic studies in mice confirmed that FD&C Red No. 40, a common azo dye excipient and a potent inhibitor of OATP2B1, decreased the plasma level of the OATP2B1 substrate fexofenadine, suggesting that FD&C Red No. 40 has the potential to block drug absorption through OATP2B1 inhibition in vivo. However, the gut microbiomes of multiple unrelated healthy individuals as well as diverse human gut bacterial isolates were capable of inactivating the identified azo dye excipients, producing metabolites that no longer inhibit OATP2B1 transport. These results support a beneficial role for the microbiome in limiting the unintended effects of food and drug additives in the intestine and provide a framework for the data-driven selection of excipients. Furthermore, the ubiquity and genetic diversity of gut bacterial azoreductases coupled to experiments in conventionally raised and gnotobiotic mice suggest that variations in gut microbial community structure may be less important to consider relative to the high concentrations of azo dyes in food products, which have the potential to saturate gut bacterial enzymatic activity.
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Affiliation(s)
- Ling Zou
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Peter Spanogiannopoulos
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143
| | - Lindsey M Pieper
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143
| | - Huan-Chieh Chien
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Wenlong Cai
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720
| | - Natalia Khuri
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Joshua Pottel
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
- QB3 Institute, University of California, San Francisco, CA 94158
| | - Bianca Vora
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158
| | - Zhanglin Ni
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD 20993
| | - Eleftheria Tsakalozou
- Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD 20993
| | - Wenjun Zhang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720
- Chan Zuckerberg Biohub, San Francisco, CA 94158
| | - Brian K Shoichet
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
- QB3 Institute, University of California, San Francisco, CA 94158
| | - Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94158;
| | - Peter J Turnbaugh
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, CA 94143;
- Chan Zuckerberg Biohub, San Francisco, CA 94158
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Bednarczyk D, Sanghvi MV. Organic anion transporting polypeptide 2B1 (OATP2B1), an expanded substrate profile, does it align with OATP2B1’s hypothesized function? Xenobiotica 2020; 50:1128-1137. [DOI: 10.1080/00498254.2020.1745318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dallas Bednarczyk
- Pharmacokinetic Sciences, Novartis Institutes of BioMedical Science, Cambridge, MA, USA
| | - Menaka V. Sanghvi
- Pharmacokinetic Sciences, Novartis Institutes of BioMedical Science, Cambridge, MA, USA
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36
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Chen M, Hu S, Li Y, Gibson AA, Fu Q, Baker SD, Sparreboom A. Role of Oatp2b1 in Drug Absorption and Drug-Drug Interactions. Drug Metab Dispos 2020; 48:419-425. [PMID: 32114507 DOI: 10.1124/dmd.119.090316] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/18/2020] [Indexed: 12/18/2022] Open
Abstract
The organic anion transporting polypeptide (OATP)2B1 is localized on the basolateral membrane of hepatocytes and is expressed in enterocytes. Based on its distribution pattern and functional similarity to OATP1B-type transporters, OATP2B1 might have a role in the absorption and disposition of a range of xenobiotics. Although several prescription drugs, including hydroxymethylglutaryl-coenzyme A-CoA reductase inhibitors (statins) such as fluvastatin, are OATP2B1 substrates in vitro, evidence supporting the in vivo relevance of this transporter remains limited, and most has relied on substrate-inhibitor interactions resulting in altered pharmacokinetic properties of the victim drugs. To address this knowledge deficit, we developed and characterized an Oatp2b1-deficient mouse model and evaluated the impact of this transporter on the absorption and disposition of fluvastatin. Consistent with the intestinal localization of Oatp2b1, we found that the genetic deletion or pharmacological inhibition of Oatp2b1 was associated with decreased absorption of fluvastatin by 2- to 3-fold. The availability of a viable Oatp2b1-deficient mouse model provides an opportunity to unequivocally determine the contribution of this transporter to the absorption and drug-drug interaction potential of drugs. SIGNIFICANCE STATEMENT: The current investigation suggests that mice deficient in Oatp2b1 provide a valuable tool to study the in vivo importance of this transporter. In addition, our studies have identified novel potent inhibitors of OATP2B1 among the class of tyrosine kinase inhibitors, a rapidly expanding class of drugs used in various therapeutic areas that may cause drug-drug interactions with OATP2B1 substrates.
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Affiliation(s)
- Mingqing Chen
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Shuiying Hu
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Yang Li
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Alice A Gibson
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Qiang Fu
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Sharyn D Baker
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Alex Sparreboom
- Experimental Cancer Pharmacology Laboratory, Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio
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Unger MS, Mudunuru J, Schwab M, Hopf C, Drewes G, Nies AT, Zamek-Gliszczynski MJ, Reinhard FBM. Clinically Relevant OATP2B1 Inhibitors in Marketed Drug Space. Mol Pharm 2020; 17:488-498. [PMID: 31834804 DOI: 10.1021/acs.molpharmaceut.9b00897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OATP2B1 is an intestinal and hepatic drug uptake transporter. Intestinal OATP2B1 has been elucidated as the mechanism of unexpected clinical drug-drug interactions (DDIs), where drug exposure was unexpectedly decreased with unchanged half-life. Hepatic OATP2B1 may be an understudied clinical DDI mechanism. The aim of the present work was to understand the prevalence of clinically relevant intestinal and hepatic OATP2B1 inhibitors in marketed drug space. HEK293 cells stably overexpressing human OATP2B1 or vector control were generated and cultured for 72 h in a 96-well format. OATP2B1-mediated uptake of dibromofluorescein (DBF) was found to be optimal at 10 μM concentration and 30 min incubation time. A total of 294 drugs (top 300 marketed drugs, excluding biologics and restricted drugs, supplemented with ∼100 small-molecule drugs) were screened for OATP2B1 inhibition at 10 μM. Drugs demonstrating ≥50% inhibition in this screen were advanced for IC50 determination, which was extrapolated to clinical intestinal and hepatic OATP2B1 inhibition as per 2017 FDA DDI guidance. Of the 294 drugs screened, 67 elicited ≥50% inhibition of OATP2B1-mediated DBF uptake at 10 μM screening concentration. For the 67 drugs flagged in the single-concentration inhibition screen, upon evaluation of a full concentration range, IC50 values could be determined for 58 drugs. OATP2B1 IC50 values established for these 58 drugs were extrapolated as potentially clinically relevant at the intestinal level for 38 orally administered drugs (Igut/IC50 ≥ 10), and 17 were flagged as potential clinical inhibitors of hepatic OATP2B1 uptake (1 + Iin,max,u/IC50 ≥ 1.1). This analysis of 294 drugs demonstrated prevalence of clinically relevant intestinal and hepatic OATP2B1 inhibitors to be 13 and 6%, respectively. As OATP2B1-inhibitor drugs are not exceedingly rare, these results suggest that clinical OATP2B1 DDIs have been rarely observed because OATP2B1 is uncommonly the predominant determinant of drug disposition.
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Affiliation(s)
- Melissa S Unger
- Cellzome, a GlaxoSmithKline Company , 69117 Heidelberg , Germany.,Center for Mass Spectrometry and Optical Spectroscopy (CeMOS) and Institute of Medical Technology , Heidelberg University and Mannheim University of Applied Sciences , 68163 Mannheim , Germany
| | - Jennypher Mudunuru
- Drug Metabolism and Disposition , GlaxoSmithKline , Collegeville , Pennsylvania 19426 , United States
| | - Matthias Schwab
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology , University of Tübingen , 70376 Stuttgart , Germany.,Departments of Clinical Pharmacology, Pharmacy and Biochemistry , University of Tübingen , 72074 Tübingen , Germany
| | - Carsten Hopf
- Center for Mass Spectrometry and Optical Spectroscopy (CeMOS) and Institute of Medical Technology , Heidelberg University and Mannheim University of Applied Sciences , 68163 Mannheim , Germany
| | - Gerard Drewes
- Cellzome, a GlaxoSmithKline Company , 69117 Heidelberg , Germany
| | - Anne T Nies
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology , University of Tübingen , 70376 Stuttgart , Germany
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Anderson JT, Huang KM, Lustberg MB, Sparreboom A, Hu S. Solute Carrier Transportome in Chemotherapy-Induced Adverse Drug Reactions. Rev Physiol Biochem Pharmacol 2020; 183:177-215. [PMID: 32761456 DOI: 10.1007/112_2020_30] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Members of the solute carrier (SLC) family of transporters are responsible for the cellular influx of a broad range of endogenous compounds and xenobiotics. These proteins are highly expressed in the gastrointestinal tract and eliminating organs such as the liver and kidney, and are considered to be of particular importance in governing drug absorption and elimination. Many of the same transporters are also expressed in a wide variety of organs targeted by clinically important anticancer drugs, directly affect cellular sensitivity to these agents, and indirectly influence treatment-related side effects. Furthermore, targeted intervention strategies involving the use of transport inhibitors have been recently developed, and have provided promising lead candidates for combinatorial therapies associated with decreased toxicity. Gaining a better understanding of the complex interplay between transporter-mediated on-target and off-target drug disposition will help guide the further development of these novel treatment strategies to prevent drug accumulation in toxicity-associated organs, and improve the safety of currently available treatment modalities. In this report, we provide an update on this rapidly emerging field with particular emphasis on anticancer drugs belonging to the classes of taxanes, platinum derivatives, nucleoside analogs, and anthracyclines.
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Affiliation(s)
- Jason T Anderson
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Kevin M Huang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Maryam B Lustberg
- Department of Medical Oncology, The Ohio State University, Comprehensive Cancer Center, Columbus, OH, USA
| | - Alex Sparreboom
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Shuiying Hu
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.
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