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Marie S, Frost KL, Hau RK, Martinez-Guerrero L, Izu JM, Myers CM, Wright SH, Cherrington NJ. Predicting disruptions to drug pharmacokinetics and the risk of adverse drug reactions in non-alcoholic steatohepatitis patients. Acta Pharm Sin B 2023; 13:1-28. [PMID: 36815037 PMCID: PMC9939324 DOI: 10.1016/j.apsb.2022.08.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/18/2022] Open
Abstract
The liver plays a central role in the pharmacokinetics of drugs through drug metabolizing enzymes and transporters. Non-alcoholic steatohepatitis (NASH) causes disease-specific alterations to the absorption, distribution, metabolism, and excretion (ADME) processes, including a decrease in protein expression of basolateral uptake transporters, an increase in efflux transporters, and modifications to enzyme activity. This can result in increased drug exposure and adverse drug reactions (ADRs). Our goal was to predict drugs that pose increased risks for ADRs in NASH patients. Bibliographic research identified 71 drugs with reported ADRs in patients with liver disease, mainly non-alcoholic fatty liver disease (NAFLD), 54 of which are known substrates of transporters and/or metabolizing enzymes. Since NASH is the progressive form of NAFLD but is most frequently undiagnosed, we identified other drugs at risk based on NASH-specific alterations to ADME processes. Here, we present another list of 71 drugs at risk of pharmacokinetic disruption in NASH, based on their transport and/or metabolism processes. It encompasses drugs from various pharmacological classes for which ADRs may occur when used in NASH patients, especially when eliminated through multiple pathways altered by the disease. Therefore, these results may inform clinicians regarding the selection of drugs for use in NASH patients.
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Affiliation(s)
- Solène Marie
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Kayla L. Frost
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Raymond K. Hau
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Lucy Martinez-Guerrero
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Jailyn M. Izu
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Cassandra M. Myers
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | - Stephen H. Wright
- College of Medicine, Department of Physiology, University of Arizona, Tucson, AZ 85724, USA
| | - Nathan J. Cherrington
- College of Pharmacy, Department of Pharmacology & Toxicology, University of Arizona, Tucson, AZ 85721, USA,Corresponding author. Tel.: +1 520 6260219; fax: +1 520 6266944.
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Tátrai P, Krajcsi P. Prediction of Drug-Induced Hyperbilirubinemia by In Vitro Testing. Pharmaceutics 2020; 12:pharmaceutics12080755. [PMID: 32796590 PMCID: PMC7465333 DOI: 10.3390/pharmaceutics12080755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/28/2020] [Accepted: 08/07/2020] [Indexed: 12/23/2022] Open
Abstract
Bilirubin, the end product of heme catabolism, is produced continuously in the body and may reach toxic levels if accumulates in the serum and tissues; therefore, a highly efficient mechanism evolved for its disposition. Normally, unconjugated bilirubin enters hepatocytes through the uptake transporters organic anion transporting polypeptide (OATP) 1B1 and 1B3, undergoes glucuronidation by the Phase II enzyme UDP glucuronosyltransferase 1A1 (UGT1A1), and conjugated forms are excreted into the bile by the canalicular export pump multidrug resistance protein 2 (MRP2). Any remaining conjugated bilirubin is transported back to the blood by MRP3 and passed on for uptake and excretion by downstream hepatocytes or the kidney. The bile salt export pump BSEP as the main motor of bile flow is indirectly involved in bilirubin disposition. Genetic mutations and xenobiotics that interfere with this machinery may impede bilirubin disposition and cause hyperbilirubinemia. Several pharmaceutical compounds are known to cause hyperbilirubinemia via inhibition of OATP1Bs, UGT1A1, or BSEP. Herein we briefly review the in vitro prediction methods that serve to identify drugs with a potential to induce hyperbilirubinemia. In vitro assays can be deployed early in drug development and may help to minimize late-stage attrition. Based on current evidence, drugs that behave as mono- or multispecific inhibitors of OATP1B1, UGT1A1, and BSEP in vitro are at risk of causing clinically significant hyperbilirubinemia. By integrating inhibition data from in vitro assays, drug serum concentrations, and clinical reports of hyperbilirubinemia, predictor cut-off values have been established and are provisionally suggested in this review. Further validation of in vitro readouts to clinical outcomes is expected to enhance the predictive power of these assays.
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Affiliation(s)
- Péter Tátrai
- Solvo Biotechnology, Science Park, Building B1, 4-20 Irinyi József utca, H-1117 Budapest, Hungary;
| | - Péter Krajcsi
- Solvo Biotechnology, Science Park, Building B1, 4-20 Irinyi József utca, H-1117 Budapest, Hungary;
- Faculty of Health Sciences, Semmelweis University, H-1085 Budapest, Hungary
- Faculty of Information Technology and Bionics, Péter Pázmány Catholic University, H-1083 Budapest, Hungary
- Correspondence:
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3
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Liao M, Jaw-Tsai S, Beltman J, Simmons AD, Harding TC, Xiao JJ. Evaluation of in vitro absorption, distribution, metabolism, and excretion and assessment of drug-drug interaction of rucaparib, an orally potent poly(ADP-ribose) polymerase inhibitor. Xenobiotica 2020; 50:1032-1042. [DOI: 10.1080/00498254.2020.1737759] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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4
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Ito K, Sjöstedt N, Brouwer KLR. Mechanistic Modeling of the Hepatic Disposition of Estradiol-17 β-Glucuronide in Sandwich-Cultured Human Hepatocytes. Drug Metab Dispos 2019; 48:116-122. [PMID: 31744810 DOI: 10.1124/dmd.119.088898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/12/2019] [Indexed: 11/22/2022] Open
Abstract
Estradiol-17β-glucuronide (E217G) is an estrogen metabolite that has cholestatic properties. In humans, circulating E217G is transported into hepatocytes by organic anion transporting polypeptides (OATPs) and is excreted into bile by multidrug-resistance associated protein 2 (MRP2). E217G is also a substrate of the basolateral efflux transporters MRP3 and MRP4, which translocate E217G from hepatocytes to blood. However, the contribution of basolateral efflux to hepatocyte disposition of E217G has not been evaluated previously. To address this question, E217G disposition was studied in sandwich-cultured human hepatocytes and mechanistic modeling was applied to calculate clearance values (mean ± S.D.) for uptake, intrinsic biliary excretion (CLint,bile) and intrinsic basolateral efflux (CLint,BL). The biliary excretion index of E217G was 45% ± 6%. The CLint,BL of E217G [0.18 ± 0.03 (ml/min)/g liver) was 1.6-fold higher than CLint,bile [0.11 ± 0.06 (ml/min)/g liver]. Simulations were performed to study the effects of increased CLint,BL and a concomitant decrease in CLint,bile on hepatic E217G exposure. Results demonstrated that increased CLint,BL can effectively reduce hepatocellular and biliary exposure to this potent cholestatic agent. Simulations also revealed that basolateral efflux can compensate for impaired biliary excretion and, vice versa, to avoid accumulation of E217G in hepatocytes. However, when both clearance processes are impaired by 90%, hepatocyte E217G exposure increases up to 10-fold. These data highlight the contribution of basolateral efflux transport, in addition to MRP2-mediated biliary excretion, to E217G disposition in human hepatocytes. This elimination route could be important, especially in cases where basolateral efflux is induced, such as cholestasis. SIGNIFICANCE STATEMENT: The disposition of the cholestatic estrogen metabolite estradiol-17β-glucuronide (E217G) was characterized in sandwich-cultured human hepatocytes. The intrinsic basolateral efflux clearance was estimated to be 1.6-fold higher than the intrinsic biliary excretion clearance, emphasizing the contribution of basolateral elimination in addition to biliary excretion. Simulations highlight how hepatocytes can effectively cope with increased E217G through the regulation of both basolateral and biliary transporters.
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Affiliation(s)
- Katsuaki Ito
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.I., N.S., K.L.R.B.); and DMPK Research Department, Teijin Pharma Limited, Hino, Tokyo, Japan (K.I.)
| | - Noora Sjöstedt
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.I., N.S., K.L.R.B.); and DMPK Research Department, Teijin Pharma Limited, Hino, Tokyo, Japan (K.I.)
| | - Kim L R Brouwer
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (K.I., N.S., K.L.R.B.); and DMPK Research Department, Teijin Pharma Limited, Hino, Tokyo, Japan (K.I.)
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In Vitro Stimulation of Multidrug Resistance-Associated Protein 2 Function Is Not Reproduced In Vivo in Rats. Pharmaceutics 2018; 10:pharmaceutics10030125. [PMID: 30096834 PMCID: PMC6161027 DOI: 10.3390/pharmaceutics10030125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 01/01/2023] Open
Abstract
Previously we reported that coproporphyrin-I (CP-I) is an optimal probe substrate for multidrug resistance-associated protein 2 (MRP2), and stimulation of MRP2-mediated transport is probe substrate-dependent. In the present investigation, we assessed if the in vitro stimulation is physiologically relevant. Similar to human MRP2 transport, CP-I was transported by rat Mrp2 in a typical Michaelis-Menten kinetics with apparent Km and Vmax values of 15 ± 6 µM and 161 ± 20 pmol/min/mg protein, respectively. In vivo Mrp2 functions were monitored by biliary and renal secretion of CP-I and its isomer CP-III, in bile-duct cannulated rats before and after treatment with mitoxantrone, progesterone, and verapamil. These compounds stimulated Mrp2-mediated CP-I transport in vitro. No significant increase in biliary or renal clearances, as well as in the cumulative amount of CP-I or CP-III eliminated in bile, were detected following treatment with the in vitro stimulators, indicating an in vitro to in vivo disconnect. In presence of 10 µM bilirubin, the in vitro stimulation was suppressed. We concluded that the in vitro stimulation of CP-I transport mediated by Mrp2 is not translatable in vivo, and proposed that the presence of endogenous compounds such as bilirubin in the liver may contribute to the in vitro to in vivo disconnect.
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Gilibili RR, Chatterjee S, Bagul P, Mosure KW, Murali BV, Mariappan TT, Mandlekar S, Lai Y. Coproporphyrin-I: A Fluorescent, Endogenous Optimal Probe Substrate for ABCC2 (MRP2) Suitable for Vesicle-Based MRP2 Inhibition Assay. Drug Metab Dispos 2017; 45:604-611. [DOI: 10.1124/dmd.116.074740] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/17/2017] [Indexed: 12/19/2022] Open
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Ge S, Tu Y, Hu M. Challenges and Opportunities with Predicting in Vivo Phase II Metabolism via Glucuronidation from in Vitro Data. ACTA ACUST UNITED AC 2016; 2:326-338. [PMID: 28966903 DOI: 10.1007/s40495-016-0076-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Glucuronidation is the most important phase II metabolic pathway which is responsible for the clearance of many endogenous and exogenous compounds. To better understand the elimination process for compounds undergoing glucuronidation and identify compounds with desirable in vivo pharmacokinetic properties, many efforts have been made to predict in vivo glucuronidation using in vitro data. In this article, we reviewed typical approaches used in previous predictions. The problems and challenges in prediction of glucuronidation were discussed. Besides that different incubation conditions can affect the prediction accuracy, other factors including efflux / uptake transporters, enterohepatic recycling, and deglucuronidation reactions also contribute to the disposition of glucuronides and make the prediction more difficult. PBPK modeling, which can describe more complicated process in vivo, is a promising prediction strategy which may greatly improve the prediction of glucuronidation and potential DDIs involving glucuronidation. Based on previous studies, we proposed a transport-glucuronidation classification system, which was built based on the kinetics of both glucuronidation and transport of the glucuronide. This system could be a very useful tool to achieve better in vivo predictions.
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Affiliation(s)
- Shufan Ge
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, The University of Houston, 1441 Moursund Street, Houston, TX, 77030, USA
| | - Yifan Tu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, The University of Houston, 1441 Moursund Street, Houston, TX, 77030, USA
| | - Ming Hu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, The University of Houston, 1441 Moursund Street, Houston, TX, 77030, USA
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8
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Deng F, Sjöstedt N, Kidron H. The Effect of Albumin on MRP2 and BCRP in the Vesicular Transport Assay. PLoS One 2016; 11:e0163886. [PMID: 27706255 PMCID: PMC5051865 DOI: 10.1371/journal.pone.0163886] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 09/15/2016] [Indexed: 11/18/2022] Open
Abstract
The ABC transporters multidrug resistance associated protein 2 (MRP2) and breast cancer resistance protein (BCRP) are of interest in drug development, since they affect the pharmacokinetics of several drugs. Membrane vesicle transport assays are widely used to study interactions with these proteins. Since albumin has been found to affect the kinetics of metabolic enzymes in similar membrane preparations, we investigated whether albumin affects the kinetic parameters of efflux transport. We found that albumin increased the Vmax of 5(6)-carboxy-2',7'-dichlorofluorescein (CDCF) and estradiol-17-β-D-glucuronide uptake into MRP2 vesicles in the presence of 0.1% bovine serum albumin (BSA) by 2 and 1.5-fold, respectively, while BSA increased Lucifer yellow uptake by 30% in BCRP vesicles. Km values increased slightly, but the change was not statistically significant. The effect of BSA on substrate uptake was dependent on the vesicle amount, while increasing BSA concentration did not significantly improve substrate uptake. These results indicate a minor effect of albumin on MRP2 and BCRP, but it should be considered if albumin is added to transporter assays for example as a solubilizer, since the effect may be substrate or transporter specific.
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Affiliation(s)
- Feng Deng
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Noora Sjöstedt
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Heidi Kidron
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- * E-mail:
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9
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Mátis G, Kulcsár A, Petrilla J, Talapka P, Neogrády Z. Porcine hepatocyte-Kupffer cell co-culture as an in vitro model for testing the efficacy of anti-inflammatory substances. J Anim Physiol Anim Nutr (Berl) 2016; 101:201-207. [PMID: 27450109 DOI: 10.1111/jpn.12547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/12/2016] [Indexed: 12/14/2022]
Abstract
As Kupffer cells are highly involved in the regulation of hepatic inflammatory response, the main goal of this study was to improve and to characterize a hepatocyte-Kupffer cell co-culture of pig origin for modelling endotoxin-induced hepatic inflammation and for testing the efficacy of potential anti-inflammatory substances. This monolayer co-culture was prepared from primary isolated swine hepatocytes and Kupffer cells in the ratio of 6:1 and 2:1, mimicking different states of liver inflammation. The prepared cell cultures were characterized by immunohistochemical CD-68 detection. Lipopolysaccharide (LPS) challenge of both co-cultures resulted in elevated interleukin-8 (IL-8) and that of 6:1 co-cultures in increased IL-6 production with a higher extent than on hepatocyte monocultures, justifying the key role of Kupffer cells in pro-inflammatory cytokine production. LPS-induced IL-8 production was successfully attenuated by concomitant application of both sodium butyrate and terpinen-4-ol on hepatocyte monocultures, but not on co-cultures, demonstrating the importance of the presence of Kupffer cells in cell cultures as inflammatory models. Based on these initial data, the applied porcine primary hepatocyte-Kupffer cell co-culture is suggested to be a proper tool for in vitro investigations on liver physiology and hepatic inflammation in pigs and can be used as a useful model mimicking in vivo conditions in veterinary research.
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Affiliation(s)
- G Mátis
- Department of Physiology and Biochemistry, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - A Kulcsár
- Department of Physiology and Biochemistry, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - J Petrilla
- Department of Physiology and Biochemistry, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - P Talapka
- Department of Physiology and Biochemistry, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - Z Neogrády
- Department of Physiology and Biochemistry, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
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Mammalian drug efflux transporters of the ATP binding cassette (ABC) family in multidrug resistance: A review of the past decade. Cancer Lett 2015; 370:153-64. [PMID: 26499806 DOI: 10.1016/j.canlet.2015.10.010] [Citation(s) in RCA: 497] [Impact Index Per Article: 55.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/09/2015] [Accepted: 10/10/2015] [Indexed: 12/21/2022]
Abstract
Multidrug resistance (MDR) is a serious phenomenon employed by cancer cells which hampers the success of cancer pharmacotherapy. One of the common mechanisms of MDR is the overexpression of ATP-binding cassette (ABC) efflux transporters in cancer cells such as P-glycoprotein (P-gp/ABCB1), multidrug resistance-associated protein 2 (MRP2/ABCC2), and breast cancer resistance protein (BCRP/ABCG2) that limits the prolonged and effective use of chemotherapeutic drugs. Researchers have found that developing inhibitors of ABC efflux transporters as chemosensitizers could overcome MDR. But the clinical trials have shown that most of these chemosensitizers are merely toxic and only show limited or no benefits to cancer patients, thus new inhibitors are being explored. Recent findings also suggest that efflux pumps of the ABC transporter family are subject to epigenetic gene regulation. In this review, we summarize recent findings of the role of ABC efflux transporters in MDR.
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Paszti-Gere E, Matis G, Farkas O, Kulcsar A, Palocz O, Csiko G, Neogrady Z, Galfi P. The Effects of Intestinal LPS Exposure on Inflammatory Responses in a Porcine Enterohepatic Co-culture System. Inflammation 2013; 37:247-60. [DOI: 10.1007/s10753-013-9735-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Zou P, Liu X, Wong S, Feng MR, Liederer BM. Comparison of In Vitro-In Vivo Extrapolation of Biliary Clearance Using an Empirical Scaling Factor Versus Transport-Based Scaling Factors in Sandwich-Cultured Rat Hepatocytes. J Pharm Sci 2013; 102:2837-50. [DOI: 10.1002/jps.23620] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/03/2013] [Accepted: 05/06/2013] [Indexed: 02/05/2023]
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Herédi-Szabó K, Kis E, Krajcsi P. The vesicular transport assay: validated in vitro methods to study drug-mediated inhibition of canalicular efflux transporters ABCB11/BSEP and ABCC2/MRP2. ACTA ACUST UNITED AC 2013; Chapter 23:Unit 23.4. [PMID: 23169269 DOI: 10.1002/0471140856.tx2304s54] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The canalicular membrane of hepatocytes contains several transport proteins that use the energy of ATP to efflux potentially toxic molecules to the bile. Probably the two most important proteins at this location are MRP2 and BSEP, which transport phase II conjugates of xenobiotics and endobiotics and conjugated bile salts, respectively. The impaired function of either of these transporter proteins reduces the clearance of the toxic conjugates, resulting in their accumulation in the hepatocytes and eventually the plasma. Conjugated bile salts and phase II metabolites are compounds with low passive permeability; therefore, the most commonly used test system to investigate MRP2- and BSEP-mediated transport processes is the vesicular transport assay. The concentration of probe substrates and inhibitors used in the experiment is close to their free concentration in the hepatocytes, providing an advantage when calculating kinetic parameters (K(m), K(i), V(max)). The protocols aim to assist scientists to set up a transport assay for a known or potential substrate and test small molecule inhibition of the transporters.
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van Staden CJ, Morgan RE, Ramachandran B, Chen Y, Lee PH, Hamadeh HK. Membrane vesicle ABC transporter assays for drug safety assessment. ACTA ACUST UNITED AC 2013; Chapter 23:Unit 23.5. [PMID: 23169270 DOI: 10.1002/0471140856.tx2305s54] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The use of plasma membrane vesicles that overexpress the bile salt export pump (BSEP) or multidrug resistance-associated protein 2, 3, or 4 (MRP2-4) with an in vitro vacuum filtration system offers a rapid and reliable means for screening drug candidates for their effects on transporter function in hepatocytes and thus their potential for causing drug-induced liver injury (DILI). Comparison of transporter activity in the presence and absence of ATP allows for determination of a specific assay window for each transporter. This window is used to determine the degree to which each test compound inhibits transporter activity. This assay battery is helpful for prioritizing and rank-ordering compounds within a chemical series with respect to each other and in the context of known inhibitors of transporter activity and/or liver injury. This model can be used to influence the drug development process at an early stage and provide rapid feedback regarding the selection of compounds for advancement to in vivo safety evaluations. A detailed protocol for the high-throughput assessment of ABC transporter function is provided, including specific recommendations for curve-fitting to help ensure consistent results.
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15
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Patel CG, Ogasawara K, Akhlaghi F. Mycophenolic acid glucuronide is transported by multidrug resistance-associated protein 2 and this transport is not inhibited by cyclosporine, tacrolimus or sirolimus. Xenobiotica 2012; 43:229-35. [PMID: 22934787 DOI: 10.3109/00498254.2012.713531] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. The purpose of this study was to investigate the contribution of MRP2 to the efflux of mycophenolic acid (MPA), and its phenyl glucuronide (MPAG) and acyl glucuronide (AcMPAG) metabolites, using Madin-Darby canine kidney II cells stably transfected with human MRP2 gene (MDCKII/MRP2 cells). 2. Compared to parental MDCKII cells, MPAG was significantly translocated from basolateral (BL) to apical (AP) side in MDCKII/MRP2 cells, indicating MPAG is a substrate for MRP2. AcMPAG is highly translocated from BL to AP side in both cells, suggesting that AcMPAG is actively secreted possibly through an efflux transporter other than MRP2. Appreciable translocation of MPA was not observed in MDCKII/MRP2 cells. 3. Furthermore, using MRP2-expressing Sf9 membrane vesicles, the Michaelis-Menten constant (Km) value for MRP2-mediated MPAG transport was calculated at 224.2 ± 42.7 µM. In the vesicle system, cyclosporine, tacrolimus and sirolimus did not inhibit the uptake of MPAG via MRP2. 4. These findings indicate that only MPAG not MPA and AcMPAG is a substrate for MRP2 and that the interaction between MPAG and concomitantly administered immunosuppressive agents does not occur at MRP2 level.
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Affiliation(s)
- Chirag G Patel
- Clinical Pharmacokinetics Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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16
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Kidron H, Wissel G, Manevski N, Häkli M, Ketola RA, Finel M, Yliperttula M, Xhaard H, Urtti A. Impact of probe compound in MRP2 vesicular transport assays. Eur J Pharm Sci 2012; 46:100-5. [DOI: 10.1016/j.ejps.2012.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 02/21/2012] [Accepted: 02/21/2012] [Indexed: 12/15/2022]
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18
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Rapid and enhanced repolarization in sandwich-cultured hepatocytes on an oxygen-permeable membrane. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2010.08.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Jemnitz K, Heredi-Szabo K, Janossy J, Ioja E, Vereczkey L, Krajcsi P. ABCC2/Abcc2: a multispecific transporter with dominant excretory functions. Drug Metab Rev 2010; 42:402-36. [PMID: 20082599 DOI: 10.3109/03602530903491741] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
ABCC2/Abcc2 (MRP2/Mrp2) is expressed at major physiological barriers, such as the canalicular membrane of liver cells, kidney proximal tubule epithelial cells, enterocytes of the small and large intestine, and syncytiotrophoblast of the placenta. ABCC2/Abcc2 always localizes in the apical membranes. Although ABCC2/Abcc2 transports a variety of amphiphilic anions that belong to different classes of molecules, such as endogenous compounds (e.g., bilirubin-glucuronides), drugs, toxic chemicals, nutraceuticals, and their conjugates, it displays a preference for phase II conjugates. Phenotypically, the most obvious consequence of mutations in ABCC2 that lead to Dubin-Johnson syndrome is conjugate hyperbilirubinemia. ABCC2/Abcc2 harbors multiple binding sites and displays complex transport kinetics.
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Affiliation(s)
- Katalin Jemnitz
- Chemical Research Center, Institute of Biomolecular Chemistry, HAS, Budapest, Hungary
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20
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Ye ZW, Camus S, Augustijns P, Annaert P. Interaction of eight HIV protease inhibitors with the canalicular efflux transporter ABCC2 (MRP2) in sandwich-cultured rat and human hepatocytes. Biopharm Drug Dispos 2010; 31:178-88. [PMID: 20238377 DOI: 10.1002/bdd.701] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hepatotoxicity has been reported as a side-effect in some patients on HIV protease inhibitors (PI). Since transporter interaction has been implicated as a mechanism underlying drug-mediated hepatotoxicity and drug-drug interactions, the interaction of PI with the hepatic canalicular efflux transporter ABCC2 (MRP2; multidrug resistance associated protein-2) was studied. Interaction with ABCC2/Abcc2 was evaluated in human and rat sandwich-cultured hepatocytes using 5(6)-carboxy-2',7'-dichlorofluorescein (CDF) as substrate. In rat hepatocytes, interaction with estradiol-17-beta-D-glucuronide (E17G) efflux was also studied. In human hepatocytes, saquinavir, ritonavir and atazanavir were the most efficient inhibitors of ABCC2-mediated biliary excretion of CDF, whereas in rat hepatocytes indinavir, lopinavir and nelfinavir were the most efficient. No species-similarity was found for ABCC2/Abcc2 inhibition. In rat hepatocytes, the effects on Abcc2 were substrate-dependent as inhibition of biliary excretion of E17G was most pronounced for saquinavir (completely blocked), amprenavir (82% inhibition) and indinavir (68% inhibition). In conclusion, several HIV PI showed substantial ABCC2 inhibition, which, combined with the effects of PI on other hepatobiliary disposition mechanisms, will determine the clinical relevance of these in vitro interaction data.
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Affiliation(s)
- Zhi-Wei Ye
- Laboratory for Pharmacotechnology and Biopharmacy, Department of Pharmaceutical Sciences, Katholieke Universiteit Leuven, O&N2, Herestraat 49-bus-921, 3000 Leuven, Belgium
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Karlsson JE, Heddle C, Rozkov A, Rotticci-Mulder J, Tuvesson O, Hilgendorf C, Andersson TB. High-activity p-glycoprotein, multidrug resistance protein 2, and breast cancer resistance protein membrane vesicles prepared from transiently transfected human embryonic kidney 293-epstein-barr virus nuclear antigen cells. Drug Metab Dispos 2010; 38:705-14. [PMID: 20071452 DOI: 10.1124/dmd.109.028886] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
Membrane-bound transporter proteins play an important role in the efflux of drugs from cells and can significantly influence the pharmacokinetics of drug molecules. This study describes the production of large amounts of high-activity transporter membrane vesicles from human embryonic kidney 293-Epstein-Barr virus nuclear antigen cells transiently transfected using a Gateway-adapted pCEP4 plasmid. Transfections were scaled up to 10-liter cell cultures, and vesicle preparations were optimized using ultracentrifugation with a sucrose cushion, which enabled us to produce hundreds of milligrams of membrane vesicles expressing human efflux transporter proteins P-glycoprotein (P-gp)/multidrug resistance 1 (ABCB1), multidrug resistance protein 2 (MRP2) (ABCC2), and breast cancer resistance protein (BCRP) (ABCG2). Assays were developed and optimized for analyzing the ATP-dependent functionality of the transporters using probe substrates and specific inhibitors. Excellent signal/noise ratios of ATP-stimulated uptake for P-gp, MRP2, and BCRP vesicles were obtained, indicating high expression of functioning transporters. The uptake kinetics of the transporters was investigated by determining K(m) and V(max) using the model substrates N-methylquinidine (P-gp), estradiol-17beta-glucuronide (MRP2), and estrone-3-sulfate (BCRP). The ATP-dependent transport was inhibited by the model inhibitors verapamil (P-gp), benzbromarone (MRP2), and sulfasalazine (BCRP). The vesicles are thus well suited to screen for possible substrates and inhibitors in high throughput systems or are used for detailed mechanistic investigations of transporter kinetics of specific substances.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B/metabolism
- ATP Binding Cassette Transporter, Subfamily B, Member 1/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/antagonists & inhibitors
- ATP-Binding Cassette Transporters/metabolism
- Benzbromarone/pharmacology
- Bioreactors
- Cell Adhesion
- Cell Line
- Cell Membrane/metabolism
- Cell Proliferation
- DNA/biosynthesis
- DNA/genetics
- Fluorescent Antibody Technique
- Herpesvirus 4, Human/genetics
- Humans
- Kinetics
- Microscopy, Fluorescence
- Multidrug Resistance-Associated Protein 2
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/metabolism
- Polyethyleneimine/metabolism
- Recombinant Proteins/metabolism
- Sulfasalazine/pharmacology
- Transfection
- Verapamil/pharmacology
- ATP-Binding Cassette Sub-Family B Member 4
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Biliary excretion in dogs: Evidence for a molecular weight threshold. Eur J Pharm Sci 2010; 40:33-7. [DOI: 10.1016/j.ejps.2010.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Accepted: 02/16/2010] [Indexed: 11/19/2022]
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Herédi-Szabó K, Jemnitz K, Kis E, Ioja E, Jánossy J, Vereczkey LÃ, Krajcsi P. Potentiation of MRP2/Mrp2-Mediated Estradiol-17β-Glucuronide Transport by Drugs â A Concise Review. Chem Biodivers 2009; 6:1970-4. [DOI: 10.1002/cbdv.200900102] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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