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Uno Y, Jikuya S, Noda Y, Murayama N, Yamazaki H. A Comprehensive Investigation of Dog Cytochrome P450 3A (CYP3A) Reveals a Functional Role of Newly Identified CYP3A98 in Small Intestine. Drug Metab Dispos 2023; 51:38-45. [PMID: 35772769 DOI: 10.1124/dmd.121.000749] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/21/2022] [Accepted: 06/08/2022] [Indexed: 12/24/2022] Open
Abstract
Dogs are frequently used in drug metabolism studies, and their important drug-metabolizing enzymes, including cytochromes P450 (P450), have been analyzed. In humans, CYP3A4 is an especially important P450 due to its abundance and major roles in liver and intestine. In the present study, dog CYP3A98 and CYP3A99 were identified and characterized, along with previously identified CYP3A12 and CYP3A26. The dog CYP3A cDNAs contained open reading frames of 503 amino acids and shared high sequence identity (78%-80%) with human CYP3As. Among the dog CYP3A mRNAs, CYP3A98 mRNA was expressed most abundantly in small intestine. In contrast, dog CYP3A12 and CYP3A26 mRNAs were expressed in liver, where CYP3A12 mRNA was the most abundant. The four CYP3A genes had similar gene structures and formed a gene cluster in the dog and human genomes. Metabolic assays of dog CYP3A proteins heterologously expressed in Escherichia coli indicated that the dog CYP3As tested were functional enzymes with respect to typical human CYP3A4 substrates. Dog CYP3A98 efficiently catalyzed oxidations of nifedipine, alprazolam, and midazolam, indicating major roles of CYP3A98 in the small intestine. Dog CYP3A12 and CYP3A26 metabolizing nifedipine and/or midazolam would play roles in these reactions in the liver. In contrast, dog CYP3A99 showed minimal mRNA expression and minimal metabolic activity, and its contribution to overall drug metabolism is, therefore, negligible. These results indicated that newly identified dog CYP3A98, a testosterone 6 β - and estradiol 16 α -hydroxylase, was abundantly expressed in the small intestine and is likely the major CYP3A in the small intestine in combination with liver-specific CYP3A12. SIGNIFICANCE STATEMENT: Novel dog cytochromes P450 3A98 (CYP3A98) and CYP3A99 were identified and characterized to be functional and highly identical to human CYP3A4. Known CYP3A12 and new CYP3A98 efficiently catalyzed estradiol 16α-hydroxylation and midazolam 1'-hydroxylation. CYP3A98 mRNA was expressed in small intestine, whereas CYP3A12 mRNA was predominant in liver. Dog hepatic CYP3A12 and intestinal CYP3A98 are the enzymes likely responsible for the metabolic clearances of orally administered drugs, unlike human CYP3A4/5, which are in both the liver and intestine.
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Affiliation(s)
- Yasuhiro Uno
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., S.J.) and Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan (Y.N., N.M., H.Y.)
| | - Shiori Jikuya
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., S.J.) and Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan (Y.N., N.M., H.Y.)
| | - Yutaro Noda
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., S.J.) and Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan (Y.N., N.M., H.Y.)
| | - Norie Murayama
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., S.J.) and Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan (Y.N., N.M., H.Y.)
| | - Hiroshi Yamazaki
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., S.J.) and Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Japan (Y.N., N.M., H.Y.)
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Balusikova K, Dostalikova-Cimburova M, Tacheci I, Kovar J. Expression profiles of iron transport molecules along the duodenum. J Cell Mol Med 2022; 26:2995-3004. [PMID: 35445529 PMCID: PMC9097835 DOI: 10.1111/jcmm.17313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 11/30/2022] Open
Abstract
Duodenal biopsies are considered a suitable source of enterocytes for studies of dietary iron absorption. However, the expression level of molecules involved in iron absorption may vary along the length of duodenum. We aimed to determine whether the expression of molecules involved in the absorption of heme and non-heme iron differs depending on the location in the duodenum. Analysis was performed with samples of duodenal biopsies from 10 individuals with normal iron metabolism. Samples were collected at the following locations: (a) immediately post-bulbar, (b) 1-2 cm below the papilla of Vater and (c) in the distal duodenum. The gene expression was analyzed at the mRNA and protein level using real-time PCR and Western blot analysis. At the mRNA level, significantly different expression of HCP1, DMT1, ferroportin and Zip8 was found at individual positions of duodenum. Position-dependent expression of other molecules, especially of FLVCR1, HMOX1 and HMOX2 was also detected but with no statistical significances. At the protein level, we observed statistically significantly decreasing expression of transporters HCP1, FLVCR1, DMT1, ferroportin, Zip14 and Zip8 with advancing positions of duodenum. Our results are consistent with a gradient of diminishing iron absorption along the duodenum for both heme and non-heme iron.
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Affiliation(s)
- Kamila Balusikova
- Department of Biochemistry, Cell and Molecular Biology & Center for Research of Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Marketa Dostalikova-Cimburova
- Department of Biochemistry, Cell and Molecular Biology & Center for Research of Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ilja Tacheci
- 2nd Department of Internal Medicine - Gastroenterology, University Hospital and Charles University in Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jan Kovar
- Department of Biochemistry, Cell and Molecular Biology & Center for Research of Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Increase water solubility of Centella asiatica extract by indigenous bioenhancers could improve oral bioavailability and disposition kinetics of triterpenoid glycosides in beagle dogs. Sci Rep 2022; 12:2909. [PMID: 35190633 PMCID: PMC8861063 DOI: 10.1038/s41598-022-06967-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/07/2022] [Indexed: 11/20/2022] Open
Abstract
A newly standardised extract of Centellaasiatica (Centell-S) with better water solubility than the previous standardised extract of C.asiatica (ECa 233) was developed, and pharmacokinetic profiles of bioactive triterpenoids were investigated in beagle dogs. The test substances were administered via intravenous or oral administration with single and multiple doses for 7 days. The concentrations of major bioactive triterpenoids, including madecassoside, asiaticoside, madecassic acid, and asiatic acid, in biological samples were measured by liquid chromatography–tandem mass spectrometry. The dogs in this study showed good tolerability to all test substances, based on the physical appearance and blood chemistry 24 h after dosing. The major bioactive triterpenoids found in systemic blood circulation were madecassoside, asiaticoside, and asiatic acid; the concentration of these components ranged from 1 to 10,000 µg/L after intravenous administration of 1.0 mg/kg Centell-S. Oral administration of 10 and 20 mg/kg Centell-S generated approximately twofold higher plasma levels of both madecassoside and asiaticoside compared with equivalent doses of ECa 233. In addition, there was an accumulation of triterpenoid glycosides after multiple oral administrations of Centell-S for 7 days, while triterpenic acids showed little tendency for accumulation. Beagles had good tolerability to both standardised extracts of C.asiatica, and showed a similar pattern of bioactive triterpenoids to humans. Centell-S increased oral bioavailability of major triterpenoid glycosides and can be further developed into a phytopharmaceutical product.
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Xu Y, Shrestha N, Préat V, Beloqui A. An overview of in vitro, ex vivo and in vivo models for studying the transport of drugs across intestinal barriers. Adv Drug Deliv Rev 2021; 175:113795. [PMID: 33989702 DOI: 10.1016/j.addr.2021.05.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 05/05/2021] [Accepted: 05/07/2021] [Indexed: 12/13/2022]
Abstract
Oral administration is the most commonly used route for drug delivery owing to its cost-effectiveness, ease of administration, and high patient compliance. However, the absorption of orally delivered compounds is a complex process that greatly depends on the interplay between the characteristics of the drug/formulation and the gastrointestinal tract. In this contribution, we review the different preclinical models (in vitro, ex vivo and in vivo) from their development to application for studying the transport of drugs across intestinal barriers. This review also discusses the advantages and disadvantages of each model. Furthermore, the authors have reviewed the selection and validation of these models and how the limitations of the models can be addressed in future investigations. The correlation and predictability of the intestinal transport data from the preclinical models and human data are also explored. With the increasing popularity and prevalence of orally delivered drugs/formulations, sophisticated preclinical models with higher predictive capacity for absorption of oral formulations used in clinical studies will be needed.
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Affiliation(s)
- Yining Xu
- University of Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue Mounier 73 B1.73.12, 1200 Brussels, Belgium.
| | - Neha Shrestha
- University of Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue Mounier 73 B1.73.12, 1200 Brussels, Belgium.
| | - Véronique Préat
- University of Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue Mounier 73 B1.73.12, 1200 Brussels, Belgium.
| | - Ana Beloqui
- University of Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Avenue Mounier 73 B1.73.12, 1200 Brussels, Belgium.
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Zhang D, Wei C, Hop CECA, Wright MR, Hu M, Lai Y, Khojasteh SC, Humphreys WG. Intestinal Excretion, Intestinal Recirculation, and Renal Tubule Reabsorption Are Underappreciated Mechanisms That Drive the Distribution and Pharmacokinetic Behavior of Small Molecule Drugs. J Med Chem 2021; 64:7045-7059. [PMID: 34010555 DOI: 10.1021/acs.jmedchem.0c01720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Drug reabsorption following biliary excretion is well-known as enterohepatic recirculation (EHR). Renal tubular reabsorption (RTR) following renal excretion is also common but not easily assessed. Intestinal excretion (IE) and enteroenteric recirculation (EER) have not been recognized as common disposition mechanisms for metabolically stable and permeable drugs. IE and intestinal reabsorption (IR:EHR/EER), as well as RTR, are governed by dug concentration gradients, passive diffusion, active transport, and metabolism, and together they markedly impact disposition and pharmacokinetics (PK) of small molecule drugs. Disruption of IE, IR, or RTR through applications of active charcoal (AC), transporter knockout (KO), and transporter inhibitors can lead to changes in PK parameters. The impacts of intestinal and renal reabsorption on PK are under-appreciated. Although IE and EER/RTR can be an intrinsic drug property, there is no apparent strategy to optimize compounds based on this property. This review seeks to improve understanding and applications of IE, IR, and RTR mechanisms.
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Affiliation(s)
- Donglu Zhang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Cong Wei
- Drug Metabolism and Pharmacokinetics, Biogen, 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Cornelis E C A Hop
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Matthew R Wright
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Ming Hu
- University of Houston College of Pharmacy, 4849 Calhoun Road, Houston, Texas 77204, United States
| | - Yurong Lai
- Drug Metabolism and Pharmacokinetics, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - S Cyrus Khojasteh
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - W Griff Humphreys
- Aranmore Pharma Consulting, 11 Andrew Drive, Lawrenceville, New Jersey 08648, United States
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6
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Martinez MN, El-Kattan A, Awji E, Papich M. Reconciling Human-Canine Differences in Oral Bioavailability: Looking beyond the Biopharmaceutics Classification System. AAPS JOURNAL 2019; 21:99. [PMID: 31396733 DOI: 10.1208/s12248-019-0364-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/09/2019] [Indexed: 11/30/2022]
Abstract
The extrapolation of oral bioavailability (F) information between dogs and humans has had an important role in the drug development process, whether it be to support an assessment of potential human pharmaceutical formulations or to identify the bioavailability challenges that may be encountered in dogs. Accordingly, these interspecies extrapolations could benefit from a tool that helps identify those drug characteristics consistent with species similarities in F. Our initial effort to find such a tool led to an exploration of species differences as it pertained to the biopharmaceutics classification system (BCS). However, using a range of compounds, we concluded that solubility and permeability alone could not explain interspecies inconsistencies in estimates of F. Therefore, we have now extended our evaluation to include canine versus human comparisons of F based upon the biopharmaceutics drug disposition classification system (BDDCS) and the extended clearance classification system (ECCS). Using the same data as that in our initial BCS assessments, we conclude that although neither the BDDCS nor the ECCS can reliably improve our ability to determine when F will be similar in humans and dogs, the ECCS provides a mechanism to help define possible causes for observed human-canine inconsistencies.
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Affiliation(s)
- Marilyn N Martinez
- Office of New Animal Drug Evaluation, Center for Veterinary Medicine, Rockville, Maryland, USA.
| | - Ayman El-Kattan
- Drug Metabolism and Pharmacokinetics, IFM Therapeutics, Cambridge, Massachusetts, USA
| | - Elias Awji
- Office of New Animal Drug Evaluation, Center for Veterinary Medicine, Rockville, Maryland, USA
| | - Mark Papich
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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7
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Zane P, Gieschen H, Kersten E, Mathias N, Ollier C, Johansson P, Van den Bergh A, Van Hemelryck S, Reichel A, Rotgeri A, Schäfer K, Müllertz A, Langguth P. In vivo models and decision trees for formulation development in early drug development: A review of current practices and recommendations for biopharmaceutical development. Eur J Pharm Biopharm 2019; 142:222-231. [PMID: 31233862 DOI: 10.1016/j.ejpb.2019.06.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 06/04/2019] [Accepted: 06/11/2019] [Indexed: 12/27/2022]
Abstract
The ability to predict new chemical entity performance using in vivo animal models has been under investigation for more than two decades. Pharmaceutical companies use their own strategies to make decisions on the most appropriate formulation starting early in development. In this paper the biopharmaceutical decision trees available in four EFPIA partners (Bayer, Boehringer Ingelheim, Bristol Meyers Squibb and Janssen) were discussed by 7 companies of which 4 had no decision tree currently defined. The strengths, weaknesses and opportunities for improvement are discussed for each decision tree. Both pharmacokineticists and preformulation scientists at the drug discovery & development interface responsible for lead optimization and candidate selection contributed to an overall picture of how formulation decisions are progressed. A small data set containing compound information from the database designed for the IMI funded OrBiTo project is examined for interrelationships between measured physicochemical, dissolution and relative bioavailability parameters. In vivo behavior of the drug substance and its formulation in First in human (FIH) studies cannot always be well predicted from in vitro and/or in silico tools alone at the time of selection of a new chemical entity (NCE). Early identification of the risks, challenges and strategies to prepare for formulations that provide sufficient preclinical exposure in animal toxicology studies and in FIH clinical trials is needed and represents an essential part of the IMI funded OrBiTo project. This article offers a perspective on the use of in vivo models and biopharmaceutical decision trees in the development of new oral drug products.
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Affiliation(s)
- P Zane
- Sanofi U.S., 55 Corporate Drive, Bridgewater, NJ 08807, United States.
| | - H Gieschen
- Bayer AG, Research & Development, Pharmaceuticals, Müllerstraße 178, 13353 Berlin, Germany
| | - E Kersten
- Bayer AG, Research & Development, Pharmaceuticals, Early Formulation Development preD3, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - N Mathias
- Bristol Myers Squibb, 3551 Lawrenceville Princeton, Lawrence Township, NJ 08648, United States
| | - C Ollier
- Sanofi Montpellier, Rue Blayac, Montpellier, France
| | - P Johansson
- AstraZeneca R&D, Sweden AstraZeneca R&D, Molndal, Pepparedsleden 1, 43183 Molndal, Sweden
| | - A Van den Bergh
- Janssen Research and Development, Turnhoutseweg 30, 2340 Beerse, Belgium
| | - S Van Hemelryck
- Janssen Research and Development, Turnhoutseweg 30, 2340 Beerse, Belgium
| | - A Reichel
- Bayer AG, Research & Development, Pharmaceuticals, Müllerstraße 178, 13353 Berlin, Germany
| | - A Rotgeri
- Bayer AG, Research & Development, Pharmaceuticals, Müllerstraße 178, 13353 Berlin, Germany
| | - K Schäfer
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, Biberach an der Riss 88397, Germany
| | - A Müllertz
- Pharmaceutical Design and Drug Delivery, Copenhagen University, Universitetsparken 2, Copenhagen 2100 Ø, Denmark
| | - P Langguth
- Department of Pharmaceutical Technology and Biopharmaceutics, Johannes Gutenberg University Mainz, Staudinger Weg 5, Mainz D-55099, Germany
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8
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Molecular cloning and tissue distribution of a novel marmoset ABC transporter. Biopharm Drug Dispos 2017; 39:59-63. [DOI: 10.1002/bdd.2111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/04/2017] [Accepted: 10/10/2017] [Indexed: 11/07/2022]
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9
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Visser M, Weber K, Rincon G, Merritt D. Use of RNA-seq to determine variation in canine cytochrome P450 mRNA expression between blood, liver, lung, kidney and duodenum in healthy beagles. J Vet Pharmacol Ther 2017; 40:583-590. [DOI: 10.1111/jvp.12400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/03/2017] [Indexed: 12/22/2022]
Affiliation(s)
- M. Visser
- Veterinary Medicine Research and Development, Metabolism & Safety; Zoetis; Kalamazoo MI USA
- Department of Anatomy, Physiology and Pharmacology; College of Veterinary Medicine; Auburn University; Auburn AL USA
| | - K. Weber
- Veterinary Medicine Research and Development, Genetics; Zoetis; Kalamazoo MI USA
| | - G. Rincon
- Veterinary Medicine Research and Development, Genetics; Zoetis; Kalamazoo MI USA
| | - D. Merritt
- Veterinary Medicine Research and Development, Metabolism & Safety; Zoetis; Kalamazoo MI USA
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Wang Q, Zheng M, Leil T. Investigating Transporter-Mediated Drug-Drug Interactions Using a Physiologically Based Pharmacokinetic Model of Rosuvastatin. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2017; 6:228-238. [PMID: 28296193 PMCID: PMC5397561 DOI: 10.1002/psp4.12168] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/22/2016] [Accepted: 01/04/2017] [Indexed: 01/24/2023]
Abstract
Rosuvastatin is a frequently used probe in transporter-mediated drug-drug interaction (DDI) studies. This report describes the development of a physiologically based pharmacokinetic (PBPK) model of rosuvastatin for prediction of pharmacokinetic (PK) DDIs. The rosuvastatin model predicted the observed single (i.v. and oral) and multiple dose PK profiles, as well as the impact of coadministration with transporter inhibitors. The predicted effects of rifampin and cyclosporine (6.58-fold and 5.07-fold increase in rosuvastatin area under the curve (AUC), respectively) were mediated primarily via inhibition of hepatic organic anion-transporting polypeptide (OATP)1B1 (Inhibition constant (Ki ) ∼1.1 and 0.014 µM, respectively) and OATP1B3 (Ki ∼0.3 and 0.007 µM, respectively), with cyclosporine also inhibiting intestinal breast cancer resistance protein (BCRP; Ki ∼0.07 µM). The predicted effects of gemfibrozil and its metabolite were moderate (1.88-fold increase in rosuvastatin AUC) and mediated primarily via inhibition of hepatic OATP1B1 and renal organic cation transporter 3. This model of rosuvastatin will be useful in prospectively predicting transporter-mediated DDIs with novel pharmaceutical agents in development.
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Affiliation(s)
- Q Wang
- Quantitative Clinical Pharmacology, Clinical Pharmacology and Pharmacometrics, Bristol-Myers Squibb, Princeton, New Jersey, USA
| | - M Zheng
- Quantitative Clinical Pharmacology, Clinical Pharmacology and Pharmacometrics, Bristol-Myers Squibb, Princeton, New Jersey, USA
| | - T Leil
- Quantitative Clinical Pharmacology, Clinical Pharmacology and Pharmacometrics, Bristol-Myers Squibb, Princeton, New Jersey, USA
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Martinez MN, Mistry B, Lukacova V, Lentz KA, Polli JE, Hoag SW, Dowling T, Kona R, Fahmy RM. Exploring Canine-Human Differences in Product Performance. Part II: Use of Modeling and Simulation to Explore the Impact of Formulation on Ciprofloxacin In Vivo Absorption and Dissolution in Dogs. AAPS JOURNAL 2017; 19:712-726. [PMID: 28265981 DOI: 10.1208/s12248-017-0055-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/02/2017] [Indexed: 01/22/2023]
Abstract
This study explored the in vivo performance of three oral ciprofloxacin formulations (oral solution, fast, or slow dissolving tablets) in beagle dogs. The in vivo absorption and dissolution behaviors, estimated with in silico mechanistic models, were compared to the results previously published in human volunteers. Six normal healthy male beagle dogs (five to completion) received three oral formulations and an intravenous infusion in a randomized crossover design. Plasma ciprofloxacin concentrations were estimated by tandem mass spectrometry detection. A mechanistic absorption model was used to predict the in vivo dissolution and absorption characteristics of the oral formulations. Canine ciprofloxacin absorption was constrained to the duodenum/jejunum. This absorption window was far narrower than that seen in humans. Furthermore, while substantial within-individual variability in drug absorption was seen in human subjects, a greater magnitude of variability was observed in dogs. For three sets of data, a lag time in gastric emptying was necessary to improve the accuracy of model-generated in vivo blood level profile predictions. In addition to species-associated dissimilarities in drug solubilization due to human versus canine differences in gastrointestinal fluid compositions, the far more rapid intestinal transit time and potential segmental differences in drug absorption needed to be considered during human-canine extrapolation of oral drug and drug product performance. Through the use of mechanistic models, the data generated in the human and canine studies contributed insights into some aspects of the interspecies differences to be considered when extrapolating oral bioavailability/formulation effect data between dogs and humans.
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Affiliation(s)
- M N Martinez
- The Food and Drug Administration, Rockville, Maryland, 20855, USA.
| | - B Mistry
- The Food and Drug Administration, Rockville, Maryland, 20855, USA
| | - V Lukacova
- Simulations Plus, Inc., 42505 10th Street West, Lancaster, California, 93534, USA
| | - K A Lentz
- Pharmaceutical Candidate Optimization, Metabolism and Pharmacokinetics, Bristol-Myers Squibb, Wallingford, Connecticut, USA
| | - J E Polli
- Department of Pharmaceutical Sciences, University of Maryland Baltimore, Baltimore, Maryland, 21201, USA
| | - S W Hoag
- Department of Pharmaceutical Sciences, University of Maryland Baltimore, Baltimore, Maryland, 21201, USA
| | - T Dowling
- Department of Pharmacy Practice, Ferris State University, Big Rapids, Michigan, 49307, USA
| | - R Kona
- Division of Formulation Development, Actavis Inc., Parsippany, New Jersey, 07054, USA
| | - R M Fahmy
- The Food and Drug Administration, Rockville, Maryland, 20855, USA
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12
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Di- and tripeptide transport in vertebrates: the contribution of teleost fish models. J Comp Physiol B 2016; 187:395-462. [PMID: 27803975 DOI: 10.1007/s00360-016-1044-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/12/2016] [Accepted: 10/20/2016] [Indexed: 02/06/2023]
Abstract
Solute Carrier 15 (SLC15) family, alias H+-coupled oligopeptide cotransporter family, is a group of membrane transporters known for their role in the cellular uptake of di- and tripeptides (di/tripeptides) and peptide-like molecules. Of its members, SLC15A1 (PEPT1) chiefly mediates intestinal absorption of luminal di/tripeptides from dietary protein digestion, while SLC15A2 (PEPT2) mainly allows renal tubular reabsorption of di/tripeptides from ultrafiltration, SLC15A3 (PHT2) and SLC15A4 (PHT1) possibly interact with di/tripeptides and histidine in certain immune cells, and SLC15A5 has unknown function. Our understanding of this family in vertebrates has steadily increased, also due to the surge of genomic-to-functional information from 'non-conventional' animal models, livestock, poultry, and aquaculture fish species. Here, we review the literature on the SLC15 transporters in teleost fish with emphasis on SLC15A1 (PEPT1), one of the solute carriers better studied amongst teleost fish because of its relevance in animal nutrition. We report on the operativity of the transporter, the molecular diversity, and multiplicity of structural-functional solutions of the teleost fish orthologs with respect to higher vertebrates, its relevance at the intersection of the alimentary and osmoregulative functions of the gut, its response under various physiological states and dietary solicitations, and its possible involvement in examples of total body plasticity, such as growth and compensatory growth. By a comparative approach, we also review the few studies in teleost fish on SLC15A2 (PEPT2), SLC15A4 (PHT1), and SLC15A3 (PHT2). By representing the contribution of teleost fish to the knowledge of the physiology of di/tripeptide transport and transporters, we aim to fill the gap between higher and lower vertebrates.
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Peters SA, Jones CR, Ungell AL, Hatley OJD. Predicting Drug Extraction in the Human Gut Wall: Assessing Contributions from Drug Metabolizing Enzymes and Transporter Proteins using Preclinical Models. Clin Pharmacokinet 2016; 55:673-96. [PMID: 26895020 PMCID: PMC4875961 DOI: 10.1007/s40262-015-0351-6] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Intestinal metabolism can limit oral bioavailability of drugs and increase the risk of drug interactions. It is therefore important to be able to predict and quantify it in drug discovery and early development. In recent years, a plethora of models-in vivo, in situ and in vitro-have been discussed in the literature. The primary objective of this review is to summarize the current knowledge in the quantitative prediction of gut-wall metabolism. As well as discussing the successes of current models for intestinal metabolism, the challenges in the establishment of good preclinical models are highlighted, including species differences in the isoforms; regional abundances and activities of drug metabolizing enzymes; the interplay of enzyme-transporter proteins; and lack of knowledge on enzyme abundances and availability of empirical scaling factors. Due to its broad specificity and high abundance in the intestine, CYP3A is the enzyme that is frequently implicated in human gut metabolism and is therefore the major focus of this review. A strategy to assess the impact of gut wall metabolism on oral bioavailability during drug discovery and early development phases is presented. Current gaps in the mechanistic understanding and the prediction of gut metabolism are highlighted, with suggestions on how they can be overcome in the future.
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Affiliation(s)
- Sheila Annie Peters
- Translational Quantitative Pharmacology, BioPharma, R&D Global Early Development, Merck KGaA, Frankfurter Str. 250, F130/005, 64293, Darmstadt, Germany.
| | | | - Anna-Lena Ungell
- Investigative ADME, Non-Clinical Development, UCB New Medicines, BioPharma SPRL, Braine l'Alleud, Belgium
| | - Oliver J D Hatley
- Simcyp Limited (A Certara Company), Blades Enterprise Centre, Sheffield, UK
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Zhao Y, Liang A, Zhang Y, Li C, Yi Y, Nilsen OG. Impact of Tetrahydropalmatine on the Pharmacokinetics of Probe Drugs for CYP1A2, 2D6 and 3A Isoenzymes in Beagle Dogs. Phytother Res 2016; 30:906-14. [DOI: 10.1002/ptr.5608] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/13/2016] [Accepted: 02/19/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Yong Zhao
- Institute of Chinese Materia Medica (ICMM); China Academy of Chinese Medical Sciences (CACMS); Beijing 100700 China
- Department of Cancer Research and Molecular Medicine, Faculty of Medicine; Norwegian University of Science and Technology (NTNU); Trondheim Norway
| | - Aihua Liang
- Institute of Chinese Materia Medica (ICMM); China Academy of Chinese Medical Sciences (CACMS); Beijing 100700 China
| | - Yushi Zhang
- Institute of Chinese Materia Medica (ICMM); China Academy of Chinese Medical Sciences (CACMS); Beijing 100700 China
| | - Chunying Li
- Institute of Chinese Materia Medica (ICMM); China Academy of Chinese Medical Sciences (CACMS); Beijing 100700 China
| | - Yan Yi
- Institute of Chinese Materia Medica (ICMM); China Academy of Chinese Medical Sciences (CACMS); Beijing 100700 China
| | - Odd Georg Nilsen
- Department of Cancer Research and Molecular Medicine, Faculty of Medicine; Norwegian University of Science and Technology (NTNU); Trondheim Norway
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15
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Stelzl T, Baranov T, Geillinger KE, Kottra G, Daniel H. Effect of N-glycosylation on the transport activity of the peptide transporter PEPT1. Am J Physiol Gastrointest Liver Physiol 2016; 310:G128-41. [PMID: 26585416 DOI: 10.1152/ajpgi.00350.2015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/10/2015] [Indexed: 01/31/2023]
Abstract
The intestinal peptide transporter PEPT1 provides bulk quantities of amino acids to epithelial cells. PEPT1 is a high-capacity and low-affinity solute carrier of the SLC15 family found in apical membranes of enterocytes in small intestine and distal colon. Surprisingly, murine PEPT1 (mPEPT1) has an apparent molecular mass of ∼95 kDa in the small intestine but ∼105 kDa in the large intestine. Here we describe studies on mPEPT1 protein glycosylation and how glycans affect transport function. Putative N-glycosylation sites of mPEPT1 were altered by site-directed mutagenesis followed by expression in Xenopus laevis oocytes. Replacement of six asparagine residues (N) at positions N50, N406, N439, N510, N515, and N532 by glutamine (Q) resulted in a decrease of the mPEPT1 mass by around 35 kDa. Electrophysiology revealed all glycosylation-deficient transporters to be functional with comparable expression levels in oocyte membranes. Strikingly, the mutant protein with N50Q exhibited a twofold decreased affinity for Gly-Sar but a 2.5-fold rise in the maximal inward currents compared with the wild-type protein. Elevated maximal transport currents were also recorded for cefadroxil and tri-l-alanine. Tracer flux studies performed with [(14)C]-Gly-Sar confirmed the reduction in substrate affinity and showed twofold increased maximal transport rates for the N50Q transporter. Elimination of individual N-glycosylation sites did not alter membrane expression in oocytes or overall transport characteristics except for the mutant protein N50Q. Because transporter surface density was not altered in N50Q, removal of the glycan at this location appears to accelerate the substrate turnover rate.
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Affiliation(s)
- Tamara Stelzl
- Chair of Nutritional Physiology, Technische Universität München, Freising, Germany; ZIEL, Institute for Food and Health, Freising, Germany
| | - Tatjana Baranov
- Chair of Nutritional Physiology, Technische Universität München, Freising, Germany; ZIEL, Institute for Food and Health, Freising, Germany
| | - Kerstin E Geillinger
- Chair of Nutritional Physiology, Technische Universität München, Freising, Germany; ZIEL, Institute for Food and Health, Freising, Germany
| | - Gabor Kottra
- Chair of Nutritional Physiology, Technische Universität München, Freising, Germany; ZIEL, Institute for Food and Health, Freising, Germany
| | - Hannelore Daniel
- Chair of Nutritional Physiology, Technische Universität München, Freising, Germany; ZIEL, Institute for Food and Health, Freising, Germany
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16
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Quantitative aspects of drug permeation across in vitro and in vivo barriers. Eur J Pharm Sci 2015; 87:30-46. [PMID: 26493585 DOI: 10.1016/j.ejps.2015.10.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/16/2015] [Accepted: 10/17/2015] [Indexed: 01/09/2023]
Abstract
The kinetics of permeation across epithelial and endothelial cell sheets and across cell membranes is determinant for the pharmacokinetics of a drug. In vitro transport experiments with cultured cells or artificial barriers have tremendously improved the predictability of the in vivo behaviour of tested compounds. This article focuses on the parameters and calculation methods that are used to describe permeation quantitatively, with a focus on in vitro experiments and the prediction of intestinal absorption and blood-brain barrier passage. It shows under which in vitro experimental conditions standard calculations are adequate and under which conditions equations should be adapted to the experimental details. The impact of volume differences between donor and receiver compartments, pH gradients, addition of albumin, accumulation in the barrier and unidirectional transport by an efflux transporter on the results is shown in simulations. The article should make researchers aware of experimental factors that affect the outcome of a permeation experiment and how to account for this during data analysis. Finally, strategies to predict the in vivo behaviour of a compound based on the in vitro data are discussed. The goal of the article is to support researchers in choosing experimental conditions and calculation methods that deliver appropriate and reproducible results in permeation studies in vitro.
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17
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Heikkinen AT, Friedlein A, Matondo M, Hatley OJD, Petsalo A, Juvonen R, Galetin A, Rostami-Hodjegan A, Aebersold R, Lamerz J, Dunkley T, Cutler P, Parrott N. Quantitative ADME Proteomics – CYP and UGT Enzymes in the Beagle Dog Liver and Intestine. Pharm Res 2014; 32:74-90. [DOI: 10.1007/s11095-014-1446-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/02/2014] [Indexed: 12/16/2022]
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18
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Sjögren E, Abrahamsson B, Augustijns P, Becker D, Bolger MB, Brewster M, Brouwers J, Flanagan T, Harwood M, Heinen C, Holm R, Juretschke HP, Kubbinga M, Lindahl A, Lukacova V, Münster U, Neuhoff S, Nguyen MA, Peer AV, Reppas C, Hodjegan AR, Tannergren C, Weitschies W, Wilson C, Zane P, Lennernäs H, Langguth P. In vivo methods for drug absorption – Comparative physiologies, model selection, correlations with in vitro methods (IVIVC), and applications for formulation/API/excipient characterization including food effects. Eur J Pharm Sci 2014; 57:99-151. [DOI: 10.1016/j.ejps.2014.02.010] [Citation(s) in RCA: 196] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 02/15/2014] [Accepted: 02/17/2014] [Indexed: 01/11/2023]
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19
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Structure and function of BCRP, a broad specificity transporter of xenobiotics and endobiotics. Arch Toxicol 2014; 88:1205-48. [DOI: 10.1007/s00204-014-1224-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/06/2014] [Indexed: 12/20/2022]
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20
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Oswald S, Gröer C, Drozdzik M, Siegmund W. Mass spectrometry-based targeted proteomics as a tool to elucidate the expression and function of intestinal drug transporters. AAPS J 2013. [PMID: 23982336 DOI: 10.1208/s12248‐013‐9521‐3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Intestinal transporter proteins affect the oral bioavailability of many drugs in a significant manner. In order to estimate or predict their impact on oral drug absorption, data on their intestinal expression levels are needed. So far, predominantly mRNA expression data are available which are not necessarily correlated with the respective protein content. All available protein data were assessed by immunoblotting techniques such as Western blotting which both possess a number of limitations for reliable protein quantification. In contrast to this, mass spectrometry-based targeted proteomics may represent a promising alternative method to provide comprehensive protein expression data. In this review, we will summarize so far available intestinal mRNA and protein expression data for relevant human multidrug transporters. Moreover, recently observed mass spectrometry-based targeted proteomic data will be presented and discussed with respect to potential functional consequences. Associated to this, we will provide a short tutorial how to set up these methods and emphasize critical aspects in method development. Finally, potential limitations and pitfalls of this emerging technique will be discussed. From our perspective, LC-MS/MS-based targeted proteomics represents a valuable new method to comprehensively analyse the intestinal expression of transporter proteins. The resulting expression data are expected to improve our understanding about the intestinal processing of drugs.
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Affiliation(s)
- Stefan Oswald
- Department of Clinical Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Felix-Hausdorff-Str. 3, 17487, Greifswald, Germany,
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21
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Oswald S, Gröer C, Drozdzik M, Siegmund W. Mass spectrometry-based targeted proteomics as a tool to elucidate the expression and function of intestinal drug transporters. AAPS JOURNAL 2013; 15:1128-40. [PMID: 23982336 DOI: 10.1208/s12248-013-9521-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 07/30/2013] [Indexed: 12/26/2022]
Abstract
Intestinal transporter proteins affect the oral bioavailability of many drugs in a significant manner. In order to estimate or predict their impact on oral drug absorption, data on their intestinal expression levels are needed. So far, predominantly mRNA expression data are available which are not necessarily correlated with the respective protein content. All available protein data were assessed by immunoblotting techniques such as Western blotting which both possess a number of limitations for reliable protein quantification. In contrast to this, mass spectrometry-based targeted proteomics may represent a promising alternative method to provide comprehensive protein expression data. In this review, we will summarize so far available intestinal mRNA and protein expression data for relevant human multidrug transporters. Moreover, recently observed mass spectrometry-based targeted proteomic data will be presented and discussed with respect to potential functional consequences. Associated to this, we will provide a short tutorial how to set up these methods and emphasize critical aspects in method development. Finally, potential limitations and pitfalls of this emerging technique will be discussed. From our perspective, LC-MS/MS-based targeted proteomics represents a valuable new method to comprehensively analyse the intestinal expression of transporter proteins. The resulting expression data are expected to improve our understanding about the intestinal processing of drugs.
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Affiliation(s)
- Stefan Oswald
- Department of Clinical Pharmacology, Center of Drug Absorption and Transport, University Medicine Greifswald, Felix-Hausdorff-Str. 3, 17487, Greifswald, Germany,
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22
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Furukawa T, Naritomi Y, Tetsuka K, Nakamori F, Moriguchi H, Yamano K, Terashita S, Tabata K, Teramura T. Species differences in intestinal glucuronidation activities between humans, rats, dogs and monkeys. Xenobiotica 2013; 44:205-16. [DOI: 10.3109/00498254.2013.828362] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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23
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Martinez MN, Antonovic L, Court M, Dacasto M, Fink-Gremmels J, Kukanich B, Locuson C, Mealey K, Myers MJ, Trepanier L. Challenges in exploring the cytochrome P450 system as a source of variation in canine drug pharmacokinetics. Drug Metab Rev 2013; 45:218-30. [DOI: 10.3109/03602532.2013.765445] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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24
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Zhang D, Frost CE, He K, Rodrigues AD, Wang X, Wang L, Goosen TC, Humphreys WG. Investigating the Enteroenteric Recirculation of Apixaban, a Factor Xa Inhibitor: Administration of Activated Charcoal to Bile Duct-Cannulated Rats and Dogs Receiving an Intravenous Dose and Use of Drug Transporter Knockout Rats. Drug Metab Dispos 2013; 41:906-15. [DOI: 10.1124/dmd.112.050575] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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25
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Chu X, Bleasby K, Evers R. Species differences in drug transporters and implications for translating preclinical findings to humans. Expert Opin Drug Metab Toxicol 2012; 9:237-52. [DOI: 10.1517/17425255.2013.741589] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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