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Mitrofanova O, Nikolaev M, Xu Q, Broguiere N, Cubela I, Camp JG, Bscheider M, Lutolf MP. Bioengineered human colon organoids with in vivo-like cellular complexity and function. Cell Stem Cell 2024; 31:1175-1186.e7. [PMID: 38876106 DOI: 10.1016/j.stem.2024.05.007] [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: 06/28/2023] [Revised: 03/19/2024] [Accepted: 05/20/2024] [Indexed: 06/16/2024]
Abstract
Organoids and organs-on-a-chip have emerged as powerful tools for modeling human gut physiology and disease in vitro. Although physiologically relevant, these systems often lack the environmental milieu, spatial organization, cell type diversity, and maturity necessary for mimicking human intestinal mucosa. To instead generate models closely resembling in vivo tissue, we herein integrated organoid and organ-on-a-chip technology to develop an advanced human organoid model, called "mini-colons." By employing an asymmetric stimulation with growth factors, we greatly enhanced tissue longevity and replicated in vivo-like diversity and patterning of proliferative and differentiated cell types. Mini-colons contain abundant mucus-producing goblet cells and, signifying mini-colon maturation, single-cell RNA sequencing reveals emerging mature and functional colonocytes. This methodology is expanded to generate microtissues from the small intestine and incorporate additional microenvironmental components. Finally, our bioengineered organoids provide a precise platform to systematically study human gut physiology and pathology, and a reliable preclinical model for drug safety assessment.
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Affiliation(s)
- Olga Mitrofanova
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - Mikhail Nikolaev
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - Quan Xu
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - Nicolas Broguiere
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Irineja Cubela
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - J Gray Camp
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - Michael Bscheider
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland
| | - Matthias P Lutolf
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4052, Switzerland; Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland.
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Michiba K, Watanabe K, Imaoka T, Nakai D. Recent Advances in the Gastrointestinal Complex in Vitro Model for ADME Studies. Pharmaceutics 2023; 16:37. [PMID: 38258048 PMCID: PMC10819272 DOI: 10.3390/pharmaceutics16010037] [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: 10/30/2023] [Revised: 12/06/2023] [Accepted: 12/16/2023] [Indexed: 01/24/2024] Open
Abstract
Intestinal absorption is a complex process involving the permeability of the epithelial barrier, efflux transporter activity, and intestinal metabolism. Identifying the key factors that govern intestinal absorption for each investigational drug is crucial. To assess and predict intestinal absorption in humans, it is necessary to leverage appropriate in vitro systems. Traditionally, Caco-2 monolayer systems and intestinal Ussing chamber studies have been considered the 'gold standard' for studying intestinal absorption. However, these methods have limitations that hinder their universal use in drug discovery and development. Recently, there has been an increasing number of reports on complex in vitro models (CIVMs) using human intestinal organoids derived from intestinal tissue specimens or iPSC-derived enterocytes plated on 2D or 3D in microphysiological systems. These CIVMs provide a more physiologically relevant representation of key ADME-related proteins compared to conventional in vitro methods. They hold great promise for use in drug discovery and development due to their ability to replicate the expressions and functions of these proteins. This review highlights recent advances in gut CIVMs employing intestinal organoid model systems compared to conventional methods. It is important to note that each CIVM should be tailored to the investigational drug properties and research questions at hand.
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Affiliation(s)
- Kazuyoshi Michiba
- Drug Metabolism & Pharmacokinetics Research Laboratory, Daiichi Sankyo Co., Ltd., 1-2-58, Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan; (K.W.); (T.I.); (D.N.)
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Yoshitomo A, Asano S, Hozuki S, Tamemoto Y, Shibata Y, Hashimoto N, Takahashi K, Sasaki Y, Ozawa N, Kageyama M, Iijima T, Kazuki Y, Sato H, Hisaka A. Significance of Basal Membrane Permeability of Epithelial Cells in Predicting Intestinal Drug Absorption. Drug Metab Dispos 2023; 51:318-328. [PMID: 36810197 DOI: 10.1124/dmd.122.000907] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Drug absorption from the gastrointestinal tract is often restricted by efflux transport by P-glycoprotein (P-gp) and metabolism by CYP3A4. Both localize in the epithelial cells, and thus, their activities are directly affected by the intracellular drug concentration, which should be regulated by the ratio of permeability between apical (A) and basal (B) membranes. In this study, using Caco-2 cells with forced expression of CYP3A4, we assessed the transcellular permeation of A-to-B and B-to-A directions and the efflux from the preloaded cells to both sides of 12 representative P-gp or CYP3A4 substrate drugs and obtained the parameters for permeabilities, transport, metabolism, and unbound fraction in the enterocytes (fent) using simultaneous and dynamic model analysis. The membrane permeability ratios for B to A (RBA) and fent varied by 8.8-fold and by more than 3000-fold, respectively, among the drugs. The RBA values for digoxin, repaglinide, fexofenadine, and atorvastatin were greater than 1.0 (3.44, 2.39, 2.27, and 1.90, respectively) in the presence of a P-gp inhibitor, thus suggesting the potential involvement of transporters in the B membrane. The Michaelis constant for quinidine for P-gp transport was 0.077 µM for the intracellular unbound concentration. These parameters were used to predict overall intestinal availability (FAFG) by applying an intestinal pharmacokinetic model, advanced translocation model (ATOM), in which permeability of A and B membranes accounted separately. The model predicted changes in the absorption location for P-gp substrates according to its inhibition, and FAFG values of 10 of 12 drugs, including quinidine at varying doses, were explained appropriately. SIGNIFICANCE STATEMENT: Pharmacokinetics has improved predictability by identifying the molecular entities of metabolism and transport and by using mathematical models to appropriately describe drug concentrations at the locations where they act. However, analyses of intestinal absorption so far have not been able to accurately consider the concentrations in the epithelial cells where P-glycoprotein and CYP3A4 exert effects. In this study, the limitation was removed by measuring the apical and basal membrane permeability separately and then analyzing these values using new appropriate models.
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Affiliation(s)
- Aoi Yoshitomo
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Satoshi Asano
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Shizuka Hozuki
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Yuta Tamemoto
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Yukihiro Shibata
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Natsumi Hashimoto
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Keita Takahashi
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Yoko Sasaki
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Naoka Ozawa
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Michiharu Kageyama
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Takeshi Iijima
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Yasuhiro Kazuki
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Hiromi Sato
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Akihiro Hisaka
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.Y., S.A., S.H., Y.T., N.H., K.T., H.S., A.H.); Toxicology & DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A., Y.Sa., N.O., M.K., T.I.); Department of Regulatory Science, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan (Y.Sh.); and Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
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Yamada N, Negoro R, Watanabe K, Fujita T. Generation of Caco-2 cells with predictable metabolism by CYP3A4, UGT1A1 and CES using the PITCh system. Drug Metab Pharmacokinet 2023; 50:100497. [PMID: 37037169 DOI: 10.1016/j.dmpk.2023.100497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/08/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
Caco-2 cells are widely used as an in vitro intestinal model. However, the expression levels of the drug-metabolizing enzymes CYP3A4 and UGT1A1 are lower in these cells than in intestinal cells. Furthermore, the majority of prodrugs in use today are ester-containing, and carboxylesterase (CES) 1 and CES2 are among the enzymes that process the prodrugs into drugs. In the human small intestine, CES1 is hardly expressed while CES2 is highly expressed, but the CES expression pattern in Caco-2 cells is the opposite. In this study, we generated CYP3A4-POR-UGT1A1-CES2 knock-in (KI) and CES1 knock-out (KO) Caco-2 (genome-edited Caco-2) cells using a PITCh system. Genome-edited Caco-2 cells were shown to express functional CYP3A4, POR, UGT1A1 and CES2 while the expression of the CES1 protein was completely knocked out. We performed transport assays using temocapril. The Papp value of temocapril in genome-edited Caco-2 cells was higher than that in WT Caco-2 cells. Interestingly, the amount of temocaprilat on the apical side in genome-edited Caco-2 cells was lower than that in WT Caco-2 cells. These results suggest that genome-edited Caco-2 cells are more suitable than WT Caco-2 cells as a model for predicting intestinal drug absorption and metabolism.
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Affiliation(s)
- Naoki Yamada
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan
| | - Ryosuke Negoro
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan.
| | - Keita Watanabe
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan
| | - Takuya Fujita
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan; Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan; Research Center for Drug Discovery and Development, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, 525-8577, Japan
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Liu L, Liu Y, Zhou X, Xu Z, Zhang Y, Ji L, Hong C, Li C. Analyzing the metabolic fate of oral administration drugs: A review and state-of-the-art roadmap. Front Pharmacol 2022; 13:962718. [PMID: 36278150 PMCID: PMC9585159 DOI: 10.3389/fphar.2022.962718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
The key orally delivered drug metabolism processes are reviewed to aid the assessment of the current in vivo/vitro experimental systems applicability for evaluating drug metabolism and the interaction potential. Orally administration is the most commonly used state-of-the-art road for drug delivery due to its ease of administration, high patient compliance and cost-effectiveness. Roles of gut metabolic enzymes and microbiota in drug metabolism and absorption suggest that the gut is an important site for drug metabolism, while the liver has long been recognized as the principal organ responsible for drugs or other substances metabolism. In this contribution, we explore various experimental models from their development to the application for studying oral drugs metabolism of and summarized advantages and disadvantages. Undoubtedly, understanding the possible metabolic mechanism of drugs in vivo and evaluating the procedure with relevant models is of great significance for screening potential clinical drugs. With the increasing popularity and prevalence of orally delivered drugs, sophisticated experimental models with higher predictive capacity for the metabolism of oral drugs used in current preclinical studies will be needed. Collectively, the review seeks to provide a comprehensive roadmap for researchers in related fields.
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Affiliation(s)
| | | | | | | | | | | | | | - Changyu Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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Zhao Y, Lin S, Fang R, Shi Y, Wu W, Zhang W, Chen H. Mechanism of Enhanced Oral Absorption of a Nano-Drug Delivery System Loaded with Trimethyl Chitosan Derivatives. Int J Nanomedicine 2022; 17:3313-3324. [PMID: 35937081 PMCID: PMC9346306 DOI: 10.2147/ijn.s358832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/18/2022] [Indexed: 11/28/2022] Open
Abstract
Introduction In the previous study, nanoparticles coated with trimethyl chitosan (TMC) derivatives (PPTT-NPs) could promote the oral bioavailability of panax notoginseng saponins (PNS). Herein, we chose PPTT-NPs as a model drug to study the property and mechanism of intestinal absorption in vitro and in vivo. Methods The stability of PPTT-NPs was evaluated using simulated gastric fluid and simulated intestinal fluid. The uptake and transport of PPTT-NPs were investigated in Caco-2 and Caco-2&HT29 co-culture cells. The biosafety, intestinal permeability, adhesion, and absorption mechanism of PPTT-NPs were investigated using SD rats in vivo. The live imaging and biodistribution of PPTT-NPs were observed by IVIS. Furthermore, the effects on CYP3A4 of PPTT-NPs were investigated using testosterone as the probe substrate. Results The results of the stability assay showed that PPTT-NPs had a strong tolerance to the pH and digestive enzymes in the gastrointestinal environment. In vitro cell experiments showed that the uptake of drugs exhibited a time-dependent. When the ratio of TMC-VB12 and TMC-Cys was 1:3, the uptake capacity of PPTT-NPs was the highest. PPTT-NPs could enhance the paracellular transport of drugs by reversibly opening a tight junction. Animal experiments demonstrated that PPTT-NPs have good biological safety. PPTT-NPs had good adhesion and permeability to small intestinal mucosa. Meanwhile, PPTT-NPs needed energy and various protein to participate in the uptake of drugs. The live imaging of NPs illustrated that PPTT-NPs could prolong the residence time in the intestine. Moreover, TMC-VB12 and TMC-Cys could reduce the metabolism of drugs by inhibiting CYP3A4 to a certain extent. Conclusion The results show that TMC-VB12 and TMC-Cys are effective in the transport of PPTT-NPs. PPTT-NPs can increase the intestinal adhesion of drugs and exert high permeation by intestinal enterocytes which demonstrate significant and efficient potential for oral delivery of the BCS III drugs.
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Affiliation(s)
- Ying Zhao
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
| | - Shiyuan Lin
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, People’s Republic of China
| | - Ruiyue Fang
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
| | - Yaling Shi
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
| | - Wei Wu
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
| | - Wei Zhang
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
| | - Hui Chen
- College of Pharmacy, Guilin Medical University, Guilin, 541199, People’s Republic of China
- Correspondence: Hui Chen; Wei Zhang, College of Pharmacy, Guilin Medical University, No. 1 Zhiyuan Road, Guilin, 541199, People’s Republic of China, Email ;
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Negoro R, Yamada N, Watanabe K, Kono Y, Fujita T. Generation of Caco-2 cells stably expressing CYP3A4·POR·UGT1A1 and CYP3A4·POR·UGT1A1*6 using a PITCh system. Arch Toxicol 2021; 96:499-510. [PMID: 34654938 DOI: 10.1007/s00204-021-03175-0] [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] [Received: 07/01/2021] [Accepted: 09/29/2021] [Indexed: 12/30/2022]
Abstract
The small intestine plays a critical role in the absorption and metabolism of orally administered drugs. Therefore, a model capable of evaluating drug absorption and metabolism in the small intestine would be useful for drug discovery. Patients with genotype UGT1A1*6 (exon 1, 211G > A) treated with the antineoplastic drug SN-38 have been reported to exhibit decreased glucuronide conjugation and increased incidence of intestinal toxicity and its severe side effects, including severe diarrhea. To ensure the safety of drugs, we must develop a drug metabolism and toxicity evaluation model which considers UGT1A1*6. In this study, we generated CYP3A4·POR·UGT1A1 KI- and CYP3A4·POR·UGT1A1*6 KI-Caco-2 cells for pharmaceutical research using a PITCh system. The CYP3A4·POR·UGT1A1 KI-Caco-2 cells were shown to express functional CYP3A4 and UGT1A1. The CYP3A4·POR·UGT1A1*6 KI-Caco-2 cells were sensitive to SN-38-induced intestinal toxicity. We thus succeeded in generating CYP3A4·POR·UGT1A1 KI- and CYP3A4·POR·UGT1A1*6 KI-Caco-2 cells, which can be used in pharmaceutical research. We also developed an intestinal epithelial cell model of patients with UGT1A1*6 and showed that it was useful as a tool for drug discovery.
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Affiliation(s)
- Ryosuke Negoro
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan.
| | - Naoki Yamada
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan
| | - Keita Watanabe
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan
| | - Yusuke Kono
- Ritsumeikan-Global Innovation Research Organization, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan
| | - Takuya Fujita
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan.,Ritsumeikan-Global Innovation Research Organization, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan.,Research Center for Drug Discovery and Development, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan
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8
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Construction of stable mouse artificial chromosome from native mouse chromosome 10 for generation of transchromosomic mice. Sci Rep 2021; 11:20050. [PMID: 34625612 PMCID: PMC8501010 DOI: 10.1038/s41598-021-99535-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/22/2021] [Indexed: 12/16/2022] Open
Abstract
Mammalian artificial chromosomes derived from native chromosomes have been applied to biomedical research and development by generating cell sources and transchromosomic (Tc) animals. Human artificial chromosome (HAC) is a precedent chromosomal vector which achieved generation of valuable humanized animal models for fully human antibody production and human pharmacokinetics. While humanized Tc animals created by HAC vector have attained significant contributions, there was a potential issue to be addressed regarding stability in mouse tissues, especially highly proliferating hematopoietic cells. Mouse artificial chromosome (MAC) vectors derived from native mouse chromosome 11 demonstrated improved stability, and they were utilized for humanized Tc mouse production as a standard vector. In mouse, however, stability of MAC vector derived from native mouse chromosome other than mouse chromosome 11 remains to be evaluated. To clarify the potential of mouse centromeres in the additional chromosomes, we constructed a new MAC vector from native mouse chromosome 10 to evaluate the stability in Tc mice. The new MAC vector was transmitted through germline and stably maintained in the mouse tissues without any apparent abnormalities. Through this study, the potential of additional mouse centromere was demonstrated for Tc mouse production, and new MAC is expected to be used for various applications.
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Ichikawa M, Akamine H, Murata M, Ito S, Takayama K, Mizuguchi H. Generation of tetracycline-controllable CYP3A4-expressing Caco-2 cells by the piggyBac transposon system. Sci Rep 2021; 11:11670. [PMID: 34083621 PMCID: PMC8175591 DOI: 10.1038/s41598-021-91160-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/24/2021] [Indexed: 01/03/2023] Open
Abstract
Caco-2 cells are widely used as an in vitro intestinal epithelial cell model because they can form a monolayer and predict drug absorption with high accuracy. However, Caco-2 cells hardly express cytochrome P450 (CYP), a drug-metabolizing enzyme. It is known that CYP3A4 is the dominant drug-metabolizing enzyme in human small intestine. In this study, we generated CYP3A4-expressing Caco-2 (CYP3A4-Caco-2) cells and attempted to establish a model that can simultaneously evaluate drug absorption and metabolism. CYP3A4-Caco-2 cells were generated by piggyBac transposon vectors. A tetracycline-controllable CYP3A4 expression cassette (tet-on system) was stably transduced into Caco-2 cells, thus regulating the levels of CYP3A4 expression depending on the doxycycline concentration. The CYP3A4 expression levels in CYP3A4-Caco-2 cells cultured in the presence of doxycycline were similar to or higher than those of adult small intestine. The CYP3A4-Caco-2 cells had enough ability to metabolize midazolam, a substrate of CYP3A4. CYP3A4 overexpression had no negative effects on cell proliferation, barrier function, and P-glycoprotein activity in Caco-2 cells. Thus, we succeeded in establishing Caco-2 cells with CYP3A4 metabolizing activity comparable to in vivo human intestinal tissue. This cell line would be useful in pharmaceutical studies as a model that can simultaneously evaluate drug absorption and metabolism.
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Affiliation(s)
- Moe Ichikawa
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroki Akamine
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Michika Murata
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Sumito Ito
- GenoMembrane Co., Ltd., 2-3-18 Namamugi, Tsurumi-ku, Yokohama, Kanagawa, 230-0052, Japan
| | - Kazuo Takayama
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan.
- Laboratory of Hepatocyte Regulation, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, 567-0085, Japan.
- Global Center for Medical Engineering and Informatics, Osaka University, Suita, Osaka, 565-0871, Japan.
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, 565-0871, Japan.
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Asano S, Yoshitomo A, Hozuki S, Sato H, Kazuki Y, Hisaka A. A New Intestinal Model for Analysis of Drug Absorption and Interactions Considering Physiological Translocation of Contents. Drug Metab Dispos 2021; 49:581-591. [PMID: 33962977 DOI: 10.1124/dmd.121.000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/09/2021] [Indexed: 11/22/2022] Open
Abstract
Precise prediction of drug absorption is key to the success of new drug development and efficacious pharmacotherapy. In this study, we developed a new absorption model, the advanced translocation model (ATOM), by extending our previous model, the translocation model. ATOM reproduces the translocation of a substance in the intestinal lumen using a partial differential equation with variable dispersion and convection terms to describe natural flow and micromixing within the intestine under not only fasted but also fed conditions. In comparison with ATOM, it was suggested that a conventional absorption model, advanced compartmental absorption and transit model, tends to underestimate micromixing in the upper intestine, and it is difficult to adequately describe movements under the fasted and fed conditions. ATOM explains the observed nonlinear absorption of midazolam successfully, with a minimal number of scaling factors. Furthermore, ATOM considers the apical and basolateral membrane permeabilities of enterocytes separately and assumes compartmentation of the lamina propria, including blood vessels, to consider intestinal blood flow appropriately. ATOM estimates changes in the intestinal availability caused by drug interaction associated with inhibition of CYP3A and P-glycoprotein in the intestine. Additionally, ATOM can estimate the drug absorption in the fed state considering delayed intestinal drug flow. Therefore, ATOM is a useful tool for the analysis of local pharmacokinetics in the gastrointestinal tract, especially for the estimation of nonlinear drug absorption, which may involve various interactions with intestinal contents or other drugs. SIGNIFICANCE STATEMENT: The newly developed advanced translocation model precisely explains various movements of intestinal contents under fasted and fed conditions, which cannot be adequately described by the current physiological pharmacokinetic models.
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Affiliation(s)
- Satoshi Asano
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Aoi Yoshitomo
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Shizuka Hozuki
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Hiromi Sato
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Yasuhiro Kazuki
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
| | - Akihiro Hisaka
- Clinical Pharmacology and Pharmacometrics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan (S.A., A.Y., S.H., H.S., A.H.); DMPK Research Department, Teijin Pharma Limited, Tokyo, Japan (S.A.); Chromosome Engineering Research Center (Y.K.) and Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine (Y.K.), Tottori University, Tottori, Japan
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11
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Centromere identity and function put to use: construction and transfer of mammalian artificial chromosomes to animal models. Essays Biochem 2021; 64:185-192. [PMID: 32501473 DOI: 10.1042/ebc20190071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 12/25/2022]
Abstract
Mammalian artificial chromosomes (MACs) are widely used as gene expression vectors and have various advantages over conventional expression vectors. We review and discuss breakthroughs in MAC construction, initiation of functional centromeres allowing their faithful inheritance, and transfer from cell culture to animal model systems. These advances have contributed to advancements in synthetic biology, biomedical research, and applications in industry and in the clinic.
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Differentiated Caco-2 cell models in food-intestine interaction study: Current applications and future trends. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2020.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ohta Y, Kazuki K, Abe S, Oshimura M, Kobayashi K, Kazuki Y. Development of Caco-2 cells expressing four CYPs via a mammalian artificial chromosome. BMC Biotechnol 2020; 20:44. [PMID: 32819341 PMCID: PMC7441628 DOI: 10.1186/s12896-020-00637-8] [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: 04/13/2020] [Accepted: 08/10/2020] [Indexed: 12/30/2022] Open
Abstract
Background Oral administration is the most common way to deliver drugs to the systemic circulation or target organs. Orally administered drugs are absorbed in the intestine and metabolized in the intestine and liver. In the early stages of drug development, it is important to predict first-pass metabolism accurately to select candidate drugs with high bioavailability. The Caco-2 cell line derived from colorectal cancer is widely used as an intestinal model to assess drug membrane permeability. However, because the expression of major drug-metabolizing enzymes, such as cytochrome P450 (CYP), is extremely low in Caco-2 cells, it is difficult to predict intestinal metabolism, which is a significant factor in predicting oral drug bioavailability. Previously, we constructed a mouse artificial chromosome vector carrying the CYP (CYP2C9, CYP2C19, CYP2D6, and CYP3A4) and P450 oxidoreductase (POR) (4CYPs-MAC) genes and increased CYP expression and metabolic activity in HepG2 cells via transfer of this vector. Results In the current study, to improve the Caco-2 cell assay model by taking metabolism into account, we attempted to increase CYP expression by transferring the 4CYPs-MAC into Caco-2 cells. The Caco-2 cells carrying the 4CYPs-MAC showed higher CYP mRNA expression and activity. In addition, high metabolic activity, availability for permeation test, and the potential to assess drug–drug interactions were confirmed. Conclusions The established Caco-2 cells with the 4CYPs-MAC are expected to enable more accurate prediction of the absorption and metabolism in the human intestine than parental Caco-2 cells. The mammalian artificial chromosome vector system would provide useful models for drug development.
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Affiliation(s)
- Yumi Ohta
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Kanako Kazuki
- Chromosome Engineering Research Center (CERC), Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Satoshi Abe
- Trans Chromosomics, Inc, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Mitsuo Oshimura
- Trans Chromosomics, Inc, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan
| | - Kaoru Kobayashi
- Laboratory of Biopharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Yasuhiro Kazuki
- Division of Genome and Cellular Functions, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan. .,Chromosome Engineering Research Center (CERC), Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.
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Cui Y, Claus S, Schnell D, Runge F, MacLean C. In-Depth Characterization of EpiIntestinal Microtissue as a Model for Intestinal Drug Absorption and Metabolism in Human. Pharmaceutics 2020; 12:pharmaceutics12050405. [PMID: 32354111 PMCID: PMC7284918 DOI: 10.3390/pharmaceutics12050405] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 12/31/2022] Open
Abstract
The Caco-2 model is a well-accepted in vitro model for the estimation of fraction absorbed in human intestine. Due to the lack of cytochrome P450 3A4 (CYP3A4) activities, Caco-2 model is not suitable for the investigation of intestinal first-pass metabolism. The purpose of this study is to evaluate a new human intestine model, EpiIntestinal microtissues, as a tool for the prediction of oral absorption and metabolism of drugs in human intestine. The activities of relevant drug transporters and drug metabolizing enzymes, including MDR1 P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), CYP3A4, CYP2J2, UDP-glucuronosyltransferases (UGT), carboxylesterases (CES), etc., were detected in functional assays with selective substrates and inhibitors. Compared to Caco-2, EpiIntestinal microtissues proved to be a more holistic model for the investigation of drug absorption and metabolism in human gastrointestinal tract.
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Affiliation(s)
- Yunhai Cui
- Department of Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach, Germany; (D.S.); (F.R.)
- Correspondence: ; Tel.: +49-7351-54-92193
| | - Stephanie Claus
- Department of Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach, Germany; (S.C.); (C.M.)
| | - David Schnell
- Department of Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach, Germany; (D.S.); (F.R.)
| | - Frank Runge
- Department of Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach, Germany; (D.S.); (F.R.)
| | - Caroline MacLean
- Department of Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharma GmbH & Co KG, 88397 Biberach, Germany; (S.C.); (C.M.)
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Speer JE, Wang Y, Fallon JK, Smith PC, Allbritton NL. Evaluation of human primary intestinal monolayers for drug metabolizing capabilities. J Biol Eng 2019; 13:82. [PMID: 31709009 PMCID: PMC6829970 DOI: 10.1186/s13036-019-0212-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/30/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The intestinal epithelium is a major site of drug metabolism in the human body, possessing enterocytes that house brush border enzymes and phase I and II drug metabolizing enzymes (DMEs). The enterocytes are supported by a porous extracellular matrix (ECM) that enables proper cell adhesion and function of brush border enzymes, such as alkaline phosphatase (ALP) and alanyl aminopeptidase (AAP), phase I DMEs that convert a parent drug to a more polar metabolite by introducing or unmasking a functional group, and phase II DMEs that form a covalent conjugate between a functional group on the parent compound or sequential metabolism of phase I metabolite. In our effort to develop an in vitro intestinal epithelium model, we investigate the impact of two previously described simple and customizable scaffolding systems, a gradient cross-linked scaffold and a conventional scaffold, on the ability of intestinal epithelial cells to produce drug metabolizing proteins as well as to metabolize exogenously added compounds. While the scaffolding systems possess a range of differences, they are most distinguished by their stiffness with the gradient cross-linked scaffold possessing a stiffness similar to that found in the in vivo intestine, while the conventional scaffold possesses a stiffness several orders of magnitude greater than that found in vivo. RESULTS The monolayers on the gradient cross-linked scaffold expressed CYP3A4, UGTs 2B17, 1A1 and 1A10, and CES2 proteins at a level similar to that in fresh crypts/villi. The monolayers on the conventional scaffold expressed similar levels of CYP3A4 and UGTs 1A1 and 1A10 DMEs to that found in fresh crypts/villi but significantly decreased expression of UGT2B17 and CES2 proteins. The activity of CYP3A4 and UGTs 1A1 and 1A10 was inducible in cells on the gradient cross-linked scaffold when the cells were treated with known inducers, whereas the CYP3A4 and UGT activities were not inducible in cells grown on the conventional scaffold. Both monolayers demonstrate esterase activity but the activity measured in cells on the conventional scaffold could not be inhibited with a known CES2 inhibitor. Both monolayer culture systems displayed similar ALP and AAP brush border enzyme activity. When cells on the conventional scaffold were incubated with a yes-associated protein (YAP) inhibitor, CYP3A4 activity was greatly enhanced suggesting that mechano-transduction signaling can modulate drug metabolizing enzymes. CONCLUSIONS The use of a cross-linked hydrogel scaffold for expansion and differentiation of primary human intestinal stem cells dramatically impacts the induction of CYP3A4 and maintenance of UGT and CES drug metabolizing enzymes in vitro making this a superior substrate for enterocyte culture in DME studies. This work highlights the influence of mechanical properties of the culture substrate on protein expression and the activity of drug metabolizing enzymes as a critical factor in developing accurate assay protocols for pharmacokinetic studies using primary intestinal cells. GRAPHICAL ABSTRACT
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Affiliation(s)
- Jennifer E. Speer
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599 USA
| | - Yuli Wang
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599 USA
| | - John K. Fallon
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27607 USA
| | - Philip C. Smith
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27607 USA
| | - Nancy L. Allbritton
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599 USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27607 USA
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Kitaoka S, Hatogai J, Iimura R, Yamamoto Y, Oba K, Nakai M, Kusunoki Y, Ochiai W, Sugiyama K. Relationship between low midazolam metabolism by cytochrome P450 3A in mice and the high incidence of birth defects. J Toxicol Sci 2018; 43:65-74. [PMID: 29415953 DOI: 10.2131/jts.43.65] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The use of midazolam in early stages of pregnancy has resulted in a high incidence of birth defects; however, the underlying reason is unknown. We investigated expression changes of the CYP3A molecular species and focused on its midazolam metabolizing activity from the foetal period to adulthood. CYP3A16 was the only CYP3A species found to be expressed in the liver during the foetal period. However, CYP3A11 is upregulated in adult mice, but has been found to be downregulated during the foetal period and to gradually increase after birth. When CYP3A16 expression was induced in a microsomal fraction of cells used to study midazolam metabolism by CYP3A16, its activity was suppressed. These results showed that the capacity to metabolize midazolam in the liver during the foetal period is very low, which could hence result in a high incidence of birth defects associated with the use of midazolam during early stages of pregnancy.
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Affiliation(s)
| | - Jo Hatogai
- Department of Clinical Pharmacokinetics, Hoshi University
| | - Ryuki Iimura
- Department of Clinical Pharmacokinetics, Hoshi University
| | - Yuka Yamamoto
- Department of Clinical Pharmacokinetics, Hoshi University
| | - Konomi Oba
- Department of Clinical Pharmacokinetics, Hoshi University
| | - Mami Nakai
- Department of Clinical Pharmacokinetics, Hoshi University
| | | | - Wataru Ochiai
- Department of Clinical Pharmacokinetics, Hoshi University
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Satoh D, Abe S, Kobayashi K, Nakajima Y, Oshimura M, Kazuki Y. Human and mouse artificial chromosome technologies for studies of pharmacokinetics and toxicokinetics. Drug Metab Pharmacokinet 2018; 33:17-30. [DOI: 10.1016/j.dmpk.2018.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/29/2017] [Accepted: 12/21/2017] [Indexed: 12/27/2022]
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