1
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Ashraf RA, Bureik M, Marchisio MA. Design and engineering of logic genetic-enzymatic gates based on the activity of the human CYP2C9 enzyme in permeabilized Saccharomyces cerevisiae cells. Synth Syst Biotechnol 2024; 9:406-415. [PMID: 38590712 PMCID: PMC10999488 DOI: 10.1016/j.synbio.2024.03.013] [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: 01/27/2024] [Revised: 03/10/2024] [Accepted: 03/17/2024] [Indexed: 04/10/2024] Open
Abstract
Gene circuits allow cells to carry out complex functions such as the precise regulation of biological metabolic processes. In this study, we combined, in the yeast S. cerevisiae, genetic regulatory elements with the enzymatic reactions of the human CYP2C9 and its redox partner CPR on luciferin substrates and diclofenac. S. cerevisiae cells were permeabilized and used as enzyme bags in order to host these metabolic reactions. We engineered three different (genetic)-enzymatic basic Boolean gates (YES, NOT, and N-IMPLY). In the YES and N-IMPLY gates, human CYP2C9 was expressed under the galactose-inducible GAL1 promoter. The carbon monoxide releasing molecule CORM-401 was used as an input in the NOT and N-IMPLY gates to impair CYP2C9 activity through inhibition of the Fe+2- heme prosthetic group in the active site of the human enzyme. Our study provides a new approach in designing synthetic bio-circuits and optimizing experimental conditions to favor the heterologous expression of human drug metabolic enzymes over their endogenous counterparts. This new approach will help study precise metabolic attributes of human P450s.
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Affiliation(s)
- Rana Azeem Ashraf
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Matthias Bureik
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Mario Andrea Marchisio
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
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2
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Aranda-Merino N, Marín-Garrido A, Román-Hidalgo C, Ramos-Payán M, Abril N, Fernández-Torres R, Bello-López MÁ. Bioavailability of flumequine and diclofenac in mice exposed to a metal-drug chemical cocktail. Evaluation of the protective role of selenium. Br J Pharmacol 2024; 181:1935-1951. [PMID: 38149319 DOI: 10.1111/bph.16312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 11/16/2023] [Accepted: 12/07/2023] [Indexed: 12/28/2023] Open
Abstract
BACKGROUND AND PURPOSE Organisms, including humans, are subjected to the simultaneous action of a wide variety of pollutants, the effects of which should not be considered in isolation, as many synergies and antagonisms have been found between many of them. Therefore, this work proposes an in vivo study to evaluate the effect of certain metal contaminants on the bioavailability and metabolism of pharmacologically active compounds. Because the most frequent entry vector is through ingestion, the influence of the gut microbiota and the possible protective effects of selenium has been additionally evaluated. EXPERIMENTAL APPROACH A controlled exposure experiment in mammals (Mus musculus) to a "chemical cocktail" consisting of metals and pharmaceuticals (diclofenac and flumequine). The presence of selenium has also been evaluated as an antagonist. Mouse plasma samples were measured by UPLC-QTOF. A targeted search of 48 metabolites was also performed. KEY RESULTS Metals significantly affected the FMQ plasma levels when the gut microbiota was depleted. Hydroxy FMQ decreased if metals were present. Selenium minimized this decrease. The 3-hydroxy DCF metabolite was not found in any case. Changes in some metabolic pathways are discussed. CONCLUSIONS AND IMPLICATIONS The presence of metals in the mouse diet as well as the prior treatment of mice with an antibiotic mixture (Abxs), which deplete the gut microbiota, has a decisive effect on the bioavailability and metabolism of the tested pharmaceuticals and dietary selenium minimize some of their effects.
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Affiliation(s)
- Noemí Aranda-Merino
- Departamento de Química Analítica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain
| | - Antonio Marín-Garrido
- Departamento de Química Analítica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain
| | - Cristina Román-Hidalgo
- Departamento de Química Analítica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain
| | - María Ramos-Payán
- Departamento de Química Analítica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain
| | - Nieves Abril
- Departamento de Bioquímica y Biología Molecular, Edificio Severo Ochoa, Campus Universitario de Rabanales, Universidad de Córdoba, Córdoba, Spain
| | - Rut Fernández-Torres
- Departamento de Química Analítica, Facultad de Química, Universidad de Sevilla, Sevilla, Spain
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3
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Van Nguyen T, Bořík A, Sims JL, Kouba A, Žlábek V, Koubová A. Toxicological effects of diclofenac on signal crayfish (Pacifastacus leniusculus) as related to weakly acidic and basic water pH. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106777. [PMID: 38035650 DOI: 10.1016/j.aquatox.2023.106777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Abstract
The widespread use and continuous discharge of pharmaceuticals to environmental waters can lead to potential toxicity to aquatic biota. Pharmaceuticals and their metabolites are often complex organic and environmentally persistent compounds that are bioactive at low doses. This study aimed to investigate the effects of diclofenac (DCF) on the antioxidant defence system and neurotoxicity biomarkers in signal crayfish (Pacifastacus leniusculus) under weakly acidic and basic conditions. Crayfish were exposed to 200 µg/L of DCF at pH 6 and 8 for 96 h and subsequently underwent the depuration phase for 96 h. Gills, hepatopancreas, and muscle were sampled after the exposure and depuration phases to assess the toxicological biomarker responses of DCF in crayfish by evaluating lipid peroxidation (LPO) levels, activities of antioxidant enzymes and acetylcholinesterase. After the exposure phase, the hemolymph DCF concentration was detected one order higher at pH 6 than at pH 8. The DCF was subsequently fully eliminated from the hemolymph during the depuration phase. Our results showed that DCF caused alteration in the activities of six of the seven tested biomarkers in at least one crayfish tissue. Although exposure to DCF caused imbalances in the detoxification system on multiple tissue levels, it was regenerated to a balanced state after the depuration phase. Integrated biomarker response (IBRv2) showed that the highest toxicological response to DCF exposure was elicited in the gills, whereas the hepatopancreas was the highest-responding tissue after the depuration phase. Exposure to DCF at pH 6 caused higher toxicological effects than at pH 8; however, crayfish antioxidant mechanisms recovered more quickly at pH 6 than at pH 8 after the depuration phase. Our results showed that water pH influenced the toxicological effects of DCF, an ionisable compound in crayfish.
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Affiliation(s)
- Tuyen Van Nguyen
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic
| | - Adam Bořík
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic
| | - Jaylen L Sims
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic; Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, TX, USA
| | - Antonín Kouba
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic
| | - Vladimír Žlábek
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic
| | - Anna Koubová
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany CZ-389 25, Czech Republic.
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4
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Correa-Navarro Y, López GD, Carazzone C, Giraldo L, Moreno-Piraján JC. Mechanochemical Degradation of Caffeine and Diclofenac Using Biochar of Fique Bagasse in the Presence of Al: Monitoring by Mass Spectrometry. ACS OMEGA 2023; 8:38905-38915. [PMID: 37901549 PMCID: PMC10601424 DOI: 10.1021/acsomega.3c03051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/19/2023] [Indexed: 10/31/2023]
Abstract
Much research has been carried out to remove emerging contaminants using diverse materials. Furthermore, studies related to pollutant degradation have increased over the past decade. Mechanochemical degradation can successfully decompose molecules that are persistent in the environment. In this study, the biochar of fique bagasse with mixtures SiO2, Al, Al2O3, and Al-Al2O3 was treated with a mechanochemical technique using a planetary ball mill to investigate the degradation of caffeine and diclofenac. These tests resulted in the transformation of caffeine and diclofenac due to the use of Al employing mechanochemistry. In fact, through the use of liquid chromatography coupled with mass spectrometry, eight and six subproducts were identified for caffeine and diclofenac, respectively. Additionally, analysis of the molecules proposed for caffeine and diclofenac transformation suggested hydroxylation, demethylation, decarboxylation, oxidation reactions, and cleavage of the C-C and C-N bonds in the pollutants studied. The formation of these transformation products could be possible by reductant oxygen species generated from the molecular oxygen in the presence of aluminum and the energy delivered for ball milling. The results obtained show the potential application in the environmental management of mechanochemical treatment in the elimination of emerging contaminants caffeine and diclofenac.
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Affiliation(s)
- Yaned
Milena Correa-Navarro
- Departamento
de Química, Facultad de Ciencias Exactas y Naturales, Grupo
de investigación Estudios Ambientales en Agua y Suelo, Universidad de Caldas, Manizales, Caldas 170004, Colombia
- Departamento
de Química, Facultad de Ciencias, Grupo de investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Carrera 1 No. 18 A-12, Bogotá, D.C. 111711, Colombia
| | - Gerson-Dirceu López
- PhysCheMath
Research Group, Facultad de Ciencias y Humanidades, Universidad de América, Avda. Circunvalar No. 20-53, Bogotá, D.C. 111711, Colombia
| | - Chiara Carazzone
- Laboratory
of Advanced Analytical Techniques in Natural Products (LATNAP), Departamento
de Química, Facultad de Ciencias, Universidad de los Andes, Carrera 1 No. 18 A-12, Bogotá, D.C. 111711, Colombia
| | - Liliana Giraldo
- Departamento
de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Bogotá, D.C. 11001, Colombia
| | - Juan Carlos Moreno-Piraján
- Departamento
de Química, Facultad de Ciencias, Grupo de investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Carrera 1 No. 18 A-12, Bogotá, D.C. 111711, Colombia
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5
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Menger MM, Stief M, Scheuer C, Rollmann MF, Herath SC, Braun BJ, Ehnert S, Nussler AK, Menger MD, Laschke MW, Histing T. Diclofenac, a NSAID, delays fracture healing in aged mice. Exp Gerontol 2023; 178:112201. [PMID: 37169100 DOI: 10.1016/j.exger.2023.112201] [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: 12/24/2022] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs), such as diclofenac, belong to the most prescribed analgesic medication after traumatic injuries. However, there is accumulating evidence that NSAIDs impair fracture healing. Because bone regeneration in aged patients is subject to significant changes in cell differentiation and proliferation as well as a markedly altered pharmacological action of drugs, we herein analyzed the effects of diclofenac on bone healing in aged mice using a stable closed femoral facture model. Thirty-three mice (male n = 14, female n = 19) received a daily intraperitoneal injection of diclofenac (5 mg/kg body weight). Vehicle-treated mice (n = 29; male n = 13, female n = 16) served as controls. Fractured mice femora were analyzed by means of X-ray, biomechanics, micro computed tomography (μCT), histology and Western blotting. Biomechanical analyses revealed a significantly reduced bending stiffness in diclofenac-treated animals at 5 weeks after fracture when compared to vehicle-treated controls. Moreover, the callus tissue in diclofenac-treated aged animals exhibited a significantly reduced amount of bone tissue and higher amounts of fibrous tissue. Further histological analyses demonstrated less lamellar bone after diclofenac treatment, indicating a delay in callus remodeling. This was associated with a decreased number of osteoclasts and an increased expression of osteoprotegerin (OPG) during the early phase of fracture healing. These findings indicate that diclofenac delays fracture healing in aged mice by affecting osteogenic growth factor expression and bone formation as well as osteoclast activity and callus remodeling.
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Affiliation(s)
- Maximilian M Menger
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg, Saar, Germany.
| | - Maximilian Stief
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg, Saar, Germany
| | - Claudia Scheuer
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg, Saar, Germany
| | - Mika F Rollmann
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany
| | - Steven C Herath
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany
| | - Benedikt J Braun
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany
| | - Sabrina Ehnert
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; Department of Trauma and Reconstructive Surgery, BG Trauma Center Tuebingen, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, 72076 Tuebingen, Germany
| | - Andreas K Nussler
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; Department of Trauma and Reconstructive Surgery, BG Trauma Center Tuebingen, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, 72076 Tuebingen, Germany
| | - Michael D Menger
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg, Saar, Germany
| | - Matthias W Laschke
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg, Saar, Germany
| | - Tina Histing
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany
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6
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Molloy BJ, King A, Gethings LA, Plumb RS, Mortishire-Smith RJ, Wilson ID. Investigation of the Pharmacokinetics and Metabolic Fate of Fasiglifam (TAK-875) in Male and Female Rats Following Oral and Intravenous Administration. Xenobiotica 2023; 53:93-105. [PMID: 36794569 DOI: 10.1080/00498254.2023.2179952] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The metabolism and pharmacokinetics of fasiglifam (TAK-875, 2-[(3S)-6-[[3-[2,6-dimethyl-4-(3-methylsulfonylpropoxy)phenyl]phenyl]methoxy]-2,3-dihydro-1-benzofuran-3-yl]acetic acid), a selective free fatty acid receptor 1 (FFAR1)/GPR40 agonist, were studied following intravenous (5 mg/kg) and oral administration (10 and 50 mg/kg) to male and female Sprague Dawley rats.Following intravenous dosing at 5 mg/kg, peak observed plasma concentrations of 8.8/9.2 μg/ml were seen in male and female rats respectively.Following oral dosing, peak plasma concentrations at 1 h of ca. 12.4/12.9 μg/ml for 10 mg/kg and 76.2/83.7 μg/ml for 50 mg/kg doses were obtained for male and female rats respectively. Drug concentrations then declined in the plasma of both sexes with t1/2's of 12.4 (male) and 11.2 h (female). Oral bioavailability was estimated to be 85-120% in males and females at both dose levels.Urinary excretion was low, but in a significant sex-related difference, female rats eliminated ca. 10-fold more drug-related material by this route.Fasiglifam was the principal drug-related compound in plasma, with 15 metabolites, including the acyl glucuronide, also detected. In addition to previously identified metabolites, a novel biotransformation, that produced a side-chain shortened metabolite via elimination of CH2 from the acetyl side chain was noted with implications for drug toxicity.
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Affiliation(s)
- Billy J Molloy
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow, SK9 4AX, UK
| | - Adam King
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow, SK9 4AX, UK
| | - Lee A Gethings
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow, SK9 4AX, UK
| | | | | | - Ian D Wilson
- Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College, Burlington Danes Building, Du Cane Road, London, W12 0NN, UK
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7
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Bouly L, Fenet H, Carayon JL, Gomez E, Géret F, Courant F. Metabolism of the aquatic pollutant diclofenac in the Lymnaea stagnalis freshwater gastropod. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:85081-85094. [PMID: 35790636 DOI: 10.1007/s11356-022-21815-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
The metabolism of organic contaminants in Lymnaea stagnalis freshwater gastropod remains unknown. Yet, pharmaceuticals-like the NSAID diclofenac-are continuously released in the aquatic environment, thereby representing a risk to aquatic organisms. In addition, lower invertebrates may be affected by this pollution since they are likely to bioaccumulate contaminants. The metabolism of pharmaceuticals in L. stagnalis requires further investigation to understand their detoxification mechanisms and characterized the risk posed by contaminant exposure in this species. In this study, a non-targeted strategy using liquid chromatography combined with high-resolution mass spectrometry was applied to highlight metabolites formed in L. stagnalis freshwater snails exposed to 300 µg/L diclofenac for 3 and 7 days. Nineteen metabolites were revealed by this approach, 12 of which were observed for the first time in an aquatic organism exposed to diclofenac. Phase I metabolism involved hydroxylation, with detection of 3'-, 4'-, and 5-hydroxydiclofenac and three dihydroxylated metabolites, as well as cyclization, oxidative decarboxylation, and dehydrogenation, while phase II metabolism consisted of glucose and sulfate conjugation. Among these reactions, the two main DCF detoxification pathways detected in L. stagnalis were hydroxylation (phase I) and glucosidation (phase II).
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Affiliation(s)
- Lucie Bouly
- Biochimie Et Toxicologie Des Substances Bioactives, EA 7417, INU Champollion, Albi, France
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 avenue Charles Flahault, 34093, Montpellier, France
| | - Hélène Fenet
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 avenue Charles Flahault, 34093, Montpellier, France
| | - Jean-Luc Carayon
- Biochimie Et Toxicologie Des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Elena Gomez
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 avenue Charles Flahault, 34093, Montpellier, France
| | - Florence Géret
- Biochimie Et Toxicologie Des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Frédérique Courant
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 avenue Charles Flahault, 34093, Montpellier, France.
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8
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Mass spectrometry imaging of diclofenac and its metabolites in tissues using nanospray desorption electrospray ionization. Anal Chim Acta 2022; 1233:340490. [DOI: 10.1016/j.aca.2022.340490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/20/2022] [Accepted: 10/05/2022] [Indexed: 11/19/2022]
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9
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AlSaeed H, Amin MO, Al-Hetlani E. Forensic analysis of cosmetic smudges using surface-assisted laser desorption/ionization mass spectrometry: recovery and ageing study. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Cox B, Barton P, Class R, Coxhead H, Delatour C, Gillent E, Henshall J, Isin EM, King L, Valentin JP. Setup of human liver-chips integrating 3D models, microwells and a standardized microfluidic platform as proof-of-concept study to support drug evaluation. BIOMATERIALS AND BIOSYSTEMS 2022; 7:100054. [PMID: 36824483 PMCID: PMC9934436 DOI: 10.1016/j.bbiosy.2022.100054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/13/2022] [Accepted: 05/29/2022] [Indexed: 10/18/2022] Open
Abstract
Human 3D liver microtissues/spheroids are powerful in vitro models to study drug-induced liver injury (DILI) but the small number of cells per spheroid limits the models' usefulness to study drug metabolism. In this work, we scale up the number of spheroids on both a plate and a standardized organ-chip platform by factor 100 using a basic method which requires only limited technical expertise. We successfully generated up to 100 spheroids using polymer-coated microwells in a 96-well plate (= liver-plate) or organ-chip (= liver-chip). Liver-chips display a comparable cellular CYP3A4 activity, viability, and biomarker expression as liver spheroids for at least one week, while liver-plate cultures display an overall reduced hepatic functionality. To prove its applicability to drug discovery and development, the liver-chip was used to test selected reference compounds. The test system could discriminate toxicity of the DILI-positive compound tolcapone from its less hepatotoxic structural analogue entacapone, using biochemical and morphological readouts. Following incubation with diclofenac, the liver-chips had an increased metabolite formation compared to standard spheroid cultures. In summary, we generated a human liver-chip model using a standardized organ-chip platform which combines up to 100 spheroids and can be used for the evaluation of both drug safety and metabolism.
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Affiliation(s)
- Benoit Cox
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium,Corresponding author.
| | - Patrick Barton
- Development Science, UCB Biopharma SRL, 216 Bath Rd, Slough, Berkshire SL1 3WE, UK
| | - Reiner Class
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
| | - Hannah Coxhead
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
| | - Claude Delatour
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
| | - Eric Gillent
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
| | - Jamie Henshall
- Development Science, UCB Biopharma SRL, 216 Bath Rd, Slough, Berkshire SL1 3WE, UK
| | - Emre M. Isin
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
| | - Lloyd King
- Development Science, UCB Biopharma SRL, 216 Bath Rd, Slough, Berkshire SL1 3WE, UK
| | - Jean-Pierre Valentin
- Development Science, UCB Biopharma SRL, Chemin du Foriest 1, B1420 Braine-l'Alleud, Belgium
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11
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Fu Q, Scheidegger A, Laczko E, Hollender J. Metabolomic Profiling and Toxicokinetics Modeling to Assess the Effects of the Pharmaceutical Diclofenac in the Aquatic Invertebrate Hyalella azteca. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:7920-7929. [PMID: 34086445 DOI: 10.1021/acs.est.0c07887] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The exposure of ecologically critical invertebrate species to biologically active pharmaceuticals poses a serious risk to the aquatic ecosystem. Yet, the fate and toxic effects of pharmaceuticals on these nontarget aquatic invertebrates and the underlying mechanisms are poorly studied. Herein, we investigated the toxicokinetic (TK) processes (i.e., uptake, biotransformation, and elimination) of the pharmaceutical diclofenac and its biotransformation in the freshwater invertebrate Hyalella azteca. We further employed mass spectrometry-based metabolomics to assess the toxic effects of diclofenac on the metabolic functions of H. azteca exposed to environmentally relevant concentrations (10 and 100 μg/L). The TK results showed a quick uptake of diclofenac by H. azteca (maximum internal concentration of 1.9 μmol/kg) and rapid formation of the conjugate diclofenac taurine (maximum internal concentration of 80.6 μmol/kg), indicating over 40 times higher accumulation of diclofenac taurine than that of diclofenac in H. azteca. Depuration kinetics demonstrated that the elimination of diclofenac taurine was 64 times slower than diclofenac in H. azteca. Metabolomics results suggested that diclofenac inhibited prostaglandin synthesis and affected the carnitine shuttle pathway at environmentally relevant concentrations. These findings shed light on the significance of the TK process of diclofenac, especially the formation of diclofenac taurine, as well as the sublethal effects of diclofenac on the bulk metabolome of H. azteca. Combining the TK processes and metabolomics provides complementary insights and thus a better mechanistic understanding of the effects of diclofenac in aquatic invertebrates.
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Affiliation(s)
- Qiuguo Fu
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
| | - Andreas Scheidegger
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
| | - Endre Laczko
- Functional Genomics Center Zurich, ETH, University of Zurich, 8057 Zurich, Switzerland
| | - Juliane Hollender
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
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12
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Kowalski JP, Pelletier RD, McDonald MG, Kelly EJ, Rettie AE. Pharmacokinetics, metabolism and off-target effects in the rat of 8-[(1H- benzotriazol-1-yl)amino]octanoic acid, a selective inhibitor of human cytochrome P450 4Z1: β-oxidation as a potential augmenting pathway for inhibition. Xenobiotica 2021; 51:901-915. [PMID: 33993844 DOI: 10.1080/00498254.2021.1930281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
8-[(1H-1,2,3-benzotriazol-1-yl)amino]octanoic acid (8-BOA) was recently identified as a selective and potent mechanism-based inactivator (MBI) of breast cancer-associated CYP4Z1 and exhibited favourable inhibitory activity in vitro, thus meriting in vivo characterization.The pharmacokinetics and metabolism of 8-BOA in rats was examined after a single IV bolus dose of 10 mg/kg. A biphasic time-concentration profile resulted in relatively low clearance and a prolonged elimination half-life.The major circulating metabolites identified in plasma were products of β-oxidation; congeners losing two and four methylene groups accounted for >50% of metabolites by peak area. The -(CH2)2 product was characterized previously as a CYP4Z1 MBI and so represents an active metabolite that may contribute to the desired pharmacological effect.Ex vivo analysis of total CYP content in rat liver and kidney microsomes showed that off-target CYP inactivation was minimal; liver microsomal probe substrate metabolism also demonstrated low off-target inactivation. Standard clinical chemistries provided no indication of acute toxicity.In silico simulations using the free concentration of 8-BOA in plasma suggested that the in vivo dose used here may effectively inactivate CYP4Z1 in a xenografted tumour.
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Affiliation(s)
- John P Kowalski
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, WA, USA.,Department of Drug Metabolism and Pharmacokinetics, Pfizer Boulder R&D, Boulder, CO, USA
| | - Robert D Pelletier
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Matthew G McDonald
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, WA, USA.,Department of Drug Metabolism and Pharmacokinetics, Pfizer Boulder R&D, Boulder, CO, USA
| | - Edward J Kelly
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Allan E Rettie
- Department of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, WA, USA
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13
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Steuer AE, Raeber J, Simbuerger F, Dornbierer DA, Bosch OG, Quednow BB, Seifritz E, Kraemer T. Towards Extending the Detection Window of Gamma-Hydroxybutyric Acid-An Untargeted Metabolomics Study in Serum and Urine Following Controlled Administration in Healthy Men. Metabolites 2021; 11:metabo11030166. [PMID: 33809281 PMCID: PMC7998200 DOI: 10.3390/metabo11030166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/28/2022] Open
Abstract
In forensic toxicology, gamma-hydroxybutyrate (GHB) still represents one of the most challenging drugs of abuse in terms of analytical detection and interpretation. Given its rapid elimination, the detection window of GHB in common matrices is short (maximum 12 h in urine). Additionally, the differentiation from naturally occurring endogenous GHB, is challenging. Thus, novel biomarkers to extend the detection window of GHB are urgently needed. The present study aimed at searching new potential biomarkers of GHB use by means of mass spectrometry (MS) metabolomic profiling in serum (up to 16.5 h) and urine samples (up to 8 h after intake) collected during a placebo-controlled crossover study in healthy men. MS data acquired by different analytical methods (reversed phase and hydrophilic interaction liquid chromatography; positive and negative electrospray ionization each) were filtered for significantly changed features applying univariate and mixed-effect model statistics. Complementary to a former study, conjugates of GHB with glycine, glutamate, taurine, carnitine and pentose (ribose) were identified in urine, with particularly GHB-pentose being promising for longer detection. None of the conjugates were detectable in serum. Therein, mainly energy metabolic substrates were identified, which may be useful for more detailed interpretation of underlying pathways but are too unspecific as biomarkers.
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Affiliation(s)
- Andrea E. Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (J.R.); (F.S.); (D.A.D.); (T.K.)
- Correspondence: ; Tel.: +41-(0)4-4635-5679
| | - Justine Raeber
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (J.R.); (F.S.); (D.A.D.); (T.K.)
| | - Fabio Simbuerger
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (J.R.); (F.S.); (D.A.D.); (T.K.)
| | - Dario A. Dornbierer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (J.R.); (F.S.); (D.A.D.); (T.K.)
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, 8032 Zurich, Switzerland; (O.G.B.); (B.B.Q.); (E.S.)
| | - Oliver G. Bosch
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, 8032 Zurich, Switzerland; (O.G.B.); (B.B.Q.); (E.S.)
| | - Boris B. Quednow
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, 8032 Zurich, Switzerland; (O.G.B.); (B.B.Q.); (E.S.)
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, 8057 Zurich, Switzerland
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, 8032 Zurich, Switzerland; (O.G.B.); (B.B.Q.); (E.S.)
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, 8057 Zurich, Switzerland
- Zurich Center for Interdisciplinary Sleep Research (ZiS), University of Zurich, 8091 Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (J.R.); (F.S.); (D.A.D.); (T.K.)
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14
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Hartmann A, Erkman L, Maremanda N, Elhajouji A, Martus HJ. Comprehensive review of genotoxicity data for diclofenac. Mutat Res 2021; 866:503347. [PMID: 33985691 DOI: 10.1016/j.mrgentox.2021.503347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/23/2021] [Accepted: 03/08/2021] [Indexed: 11/19/2022]
Abstract
Diclofenac is a non-steroidal anti-inflammatory drug discovered several decades ago, which has since been used by an estimated one billion patients and has demonstrated an acceptable safety profile. In support of its marketing approval, a comprehensive set of genotoxicity studies were conducted in vitro and in vivo. Despite the fact that these studies preceded both Good Laboratory Practice (GLP) requirements and International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines on genotoxicity testing, they were conducted using the best scientific principles and are considered appropriate by contemporary standards. In addition to bacterial mutagenicity and mammalian in vitro assays, repeat-dose somatic, germ cell and dominant lethal assays were conducted. These data are made available for the first time to offer researchers an opportunity to review the existing data set that unequivocally demonstrates that diclofenac sodium is not genotoxic. This is further substantiated by long-term bioassay data demonstrating that diclofenac sodium has no carcinogenic potential in rodents. However, more recently, new studies have been published showing a genotoxic potential for diclofenac in novel or modified in vitro test systems. These new publications are discussed in the context of the existing comprehensive data package.
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15
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Bio S, Nunes B. Acute effects of diclofenac on zebrafish: Indications of oxidative effects and damages at environmentally realistic levels of exposure. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 78:103394. [PMID: 32320907 DOI: 10.1016/j.etap.2020.103394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
With the increasing awareness about the contamination of the aquatic environment by pharmaceuticals, there is a growing need to study their adverse effects on aquatic organisms. Diclofenac is a non-steroidal anti-inflammatory drug (NSAID), whose wide use contributes for its presence in freshwater ecosystems, increasing the probability of causing deleterious changes in aquatic biota. This study evaluated possible oxidative stress effects in Danio rerio embryos and larvae when exposed to a range of ecologically relevant concentrations of diclofenac. It was possible to conclude that diclofenac caused a scenario of oxidative stress, since all tested toxicological parameters were responsive to the drug. In general, diclofenac caused not only significant anti-oxidant adaptive responses for most levels of exposure, but also peroxidative damage. This work evidenced the responsiveness of D. rerio towards diclofenac in environmentally relevant concentrations, which shows that these organisms might face a scenario of oxidative stress in their natural habitat.
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Affiliation(s)
- Sofia Bio
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar (CESAM), Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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16
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Wilkinson SD, Martin S, Orton AL, Markandu R, Jones BC. Drug metabolite identification using ultrahigh-performance liquid chromatography-ultraviolet spectroscopy and parallelized scans on a tribrid Orbitrap mass spectrometer. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8735. [PMID: 31967694 DOI: 10.1002/rcm.8735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE To capture all metabolites in metabolite identification studies, MS/MS information is required in both positive and negative ionization mode, usually involving several sample injections to gain all information about samples. A high-resolution and high mass accuracy quadrupole/linear trap/Orbitrap tribrid instrument was used to gain this information in a novel single injection 'capture-all' approach to metabolite identification. METHODS Diclofenac, a model compound, was incubated in human and rat hepatocytes. These incubated samples were run using an ultrahigh-performance liquid chromatography/ultraviolet (UHPLC-UV) system coupled to a Thermo Fusion tribrid mass spectrometer. Five parallel scans were used: positive and negative ion full scan, data-dependent MS/MS, both high energy dissociation and collision-induced dissociation, and data-independent all ion fragmentation (AIF) spectra were collected in positive and negative ion mode. RESULTS Nine metabolites were identified; a metabolite observed in the UV trace, but not positive ion full scan MS, was detected in the same sample injection by negative ion full scan MS. This was identified as a sulphate metabolite, and the corresponding negative ion AIF allowed for some structural elucidation. The use of a photo-diode array (PDA) detector allowed for spectral assessment in case of changes in absorbance spectra, and the subsequent semi-quantification of metabolites. CONCLUSIONS This method provided good-quality MS/MS data across the m/z range in both positive and negative ion mode. The addition of both negative ion full scan MS and negative ion MS/MS allowed for the detection and structural elucidation of metabolites not observed in positive ion mode. The use of the PDA detector allowed for the semi-quantification of metabolites.
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Affiliation(s)
- Stephen D Wilkinson
- DMPK/ADME Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Scott Martin
- DMPK/ADME Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Alexandra L Orton
- DMPK/ADME Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Roshini Markandu
- DMPK/ADME Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Barry C Jones
- DMPK/ADME Research and Early Development, Oncology R&D, AstraZeneca, Cambridge, UK
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17
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Fu Q, Fedrizzi D, Kosfeld V, Schlechtriem C, Ganz V, Derrer S, Rentsch D, Hollender J. Biotransformation Changes Bioaccumulation and Toxicity of Diclofenac in Aquatic Organisms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:4400-4408. [PMID: 32036646 DOI: 10.1021/acs.est.9b07127] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biotransformation plays a crucial role in regulating the bioaccumulation potential and toxicity of organic compounds in organisms but is, in general, poorly understood for emerging contaminants. Here, we have used diclofenac as a model compound to study the impact of biotransformation on the bioaccumulation potential and toxicity in two keystone aquatic invertebrates: Gammarus pulex and Hyalella azteca. In both species, diclofenac was transformed into several oxidation products and conjugates, including two novel products, that is, diclofenac taurine conjugate (DCF-M403) and unexpected diclofenac methyl ester (DCF-M310.03). The ratios of biotransformation products to parent compound were 12-17 for DCF-M403 and 0.01-0.7 for DCF-M310.03 after 24 h exposure. Bioconcentration factors (BCFs) of diclofenac were 0.5 and 3.2 L kgww-1 in H. azteca and G. pulex, respectively, whereas BCFs of DCF-M310.03 was 164.5 and 104.7 L kgww-1, respectively, representing a 25- to 110-fold increase. Acute toxicity of DCF-M310.03 was also higher than the parent compound in both species, which correlated well with the increased bioconcentration potential. The LC50 of diclofenac in H. azteca was 216 mg L-1, while that of metabolite DCF-M310.03 was reduced to only 0.53 mg L-1, representing a 430-fold increase in acute toxicity compared to diclofenac. DCF-M403 is less toxic than its parent compound toward H. azteca, which may be linked to its slightly lower hydrophobicity. Furthermore, the transformation of diclofenac to its methyl ester derivative was explored in crude invertebrate extracts spiked with an S-adenosylmethionine cofactor, revealing possible catalysis by an S-adenosylmethionine-dependent carboxylic acid methyltransferase. Methylation of diclofenac was further detected in fish hepatocytes and human urine, indicating a broader relevance. Therefore, potentially methylated metabolites of polar contaminants should be considered for a comprehensive risk assessment in the future.
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Affiliation(s)
- Qiuguo Fu
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
| | - Davide Fedrizzi
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
| | - Verena Kosfeld
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, 57392 Schmallenberg, Germany
- Institute for Environmental Research (Biology V) 52074 Aachen, Germany
| | - Christian Schlechtriem
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, 57392 Schmallenberg, Germany
- Institute for Environmental Research (Biology V) 52074 Aachen, Germany
| | - Vera Ganz
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
| | - Samuel Derrer
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
| | - Daniel Rentsch
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Juliane Hollender
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
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18
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Aslan M, Kırımlıoğlu E, Afşar E, Çeker T, Yılmaz Ç. Increased PUFA levels in kidney epithelial cells in the course of diclofenac toxicity. Toxicol In Vitro 2020; 66:104836. [PMID: 32220568 DOI: 10.1016/j.tiv.2020.104836] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/24/2020] [Accepted: 03/23/2020] [Indexed: 12/19/2022]
Abstract
This study evaluated polyunsaturated fatty acids (PUFAs) in human kidney epithelial cells exposed to diclofenac (DCL) toxicity. Kidney cells were treated with DCL to induce cytotoxicity and thymoquinone (TQ) was administered to decrease cytotoxic effects. Levels of arachidonic acid (AA, C20:4n-6), dihomo-gamma-linolenic acid (DGLA, C20:3n-6), eicosapentaenoic acid (EPA, C20:5n-3) and docosahexaenoic acid (DHA, C22:6n-3) were determined by liquid chromatography coupled with tandem mass spectrometry. Cytosolic phospholipase A2 (cPLA2), cyclooxygenase 1 (COX-1) and prostaglandin E2 (PGE2) were measured to evaluate changes in enzyme activity. Immunofluorescence staining and western blot analysis was performed to determine protein levels of COX- 1. Renal cell toxicity was accomplished by DCL and was alleviated by TQ treatment. Diclofenac significantly increased all measured PUFAs while pretreatment with TQ decreased PUFA levels in DCL treated cells. Cytosolic PLA2 and total COX activity was significantly decreased in DCL treated cells. Immunofluorescence staining and western blot analysis confirmed significantly decreased COX-1 levels in DCL and DCL + TQ treated groups. The results of this study reveal that DCL treatment is associated with accumulation of PUFAs in kidney cells. We suggest that PUFA accumulation in DCL toxicity might be a consequence of both cPLA2 and COX-1 inhibition. Thymoquinone administration, along with DCL treatment alleviated the buildup of PUFAs and DCL-induced cell death in kidney cells.
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Affiliation(s)
- Mutay Aslan
- Departments of Medical Biochemistry, Akdeniz University Faculty of Medicine, Antalya, Turkey.
| | - Esma Kırımlıoğlu
- Departments of Histology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Ebru Afşar
- Departments of Medical Biochemistry, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Tuğçe Çeker
- Departments of Medical Biochemistry, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Çağatay Yılmaz
- Departments of Medical Biochemistry, Akdeniz University Faculty of Medicine, Antalya, Turkey
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Bradshaw PR, Richards SE, Wilson ID, Stachulski AV, Lindon JC, Athersuch TJ. Kinetic modelling of acyl glucuronide and glucoside reactivity and development of structure–property relationships. Org Biomol Chem 2020; 18:1389-1401. [DOI: 10.1039/c9ob02008j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Detailed kinetic and transition structure modelling to rationalise the differences in reactivity observed between the acyl glucuronide and glucoside metabolites of a series of phenylacetic acid analogues.
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Affiliation(s)
- Peter R. Bradshaw
- Department of Metabolism
- Digestion and Reproduction
- Faculty of Medicine
- Imperial College London
- London
| | - Selena E. Richards
- Department of Chemistry
- Khalifa University of Science and Technology
- Abu Dhabi
- United Arab Emirates
| | - Ian D. Wilson
- Department of Metabolism
- Digestion and Reproduction
- Faculty of Medicine
- Imperial College London
- London
| | - Andrew V. Stachulski
- Department of Chemistry
- The Robert Robinson Laboratories
- University of Liverpool
- Liverpool L69 7ZD
- UK
| | - John C. Lindon
- Department of Metabolism
- Digestion and Reproduction
- Faculty of Medicine
- Imperial College London
- London
| | - Toby J. Athersuch
- Department of Metabolism
- Digestion and Reproduction
- Faculty of Medicine
- Imperial College London
- London
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20
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Sathishkumar P, Meena RAA, Palanisami T, Ashokkumar V, Palvannan T, Gu FL. Occurrence, interactive effects and ecological risk of diclofenac in environmental compartments and biota - a review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134057. [PMID: 31783460 DOI: 10.1016/j.scitotenv.2019.134057] [Citation(s) in RCA: 181] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 08/17/2019] [Accepted: 08/21/2019] [Indexed: 05/17/2023]
Abstract
Diclofenac, a nonsteroidal anti-inflammatory drug has turned into a contaminant of emerging concern; hence, it was included in the previous Watch List of the EU Water Framework Directive. This review paper aims to highlight the metabolism of diclofenac at different trophic levels, its occurrence, ecological risks, and interactive effects in the water cycle and biota over the past two decades. Increased exposure to diclofenac not only raises health concerns for vultures, aquatic organisms, and higher plants but also causes serious threats to mammals. The ubiquitous nature of diclofenac in surface water (river, lake canal, estuary, and sea) is compared with drinking water, groundwater, and wastewater effluent in the environment. This comprehensive survey from previous studies suggests the fate of diclofenac in wastewater treatment plants (WWTPs) and may predict its persistence in the environment. This review offers evidence of fragmentary available data for the water environment, soil, sediment, and biota worldwide and supports the need for further data to address the risks associated with the presence of diclofenac in the environment. Finally, we suggest that the presence of diclofenac and its metabolites in the environment may represent a high risk because of their synergistic interactions with existing contaminants, leading to the development of drug-resistant strains and the formation of newly emerging pollutants.
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Affiliation(s)
- Palanivel Sathishkumar
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
| | | | - Thavamani Palanisami
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW 2308, Australia
| | - Veeramuthu Ashokkumar
- Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thayumanavan Palvannan
- Laboratory of Bioprocess and Engineering, Department of Biochemistry, Periyar University, Salem 636 011, Tamil Nadu, India
| | - Feng Long Gu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China.
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21
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de Jesus ACSPS, Costa FM, das Neves PAPFG, Melo FPA, Silva AS, Silva OPP, Santos CBR, Borges RS. The role of regioselective hydroxylation on toxicity of diclofenac and related derivatives. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1655560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ana C. S. P. S. de Jesus
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Fernanda M. Costa
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Paulo A. P. F. G. das Neves
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Fernanda P. A. Melo
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Antonio S. Silva
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Osmarina P. P. Silva
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
| | - Cleydson B. R. Santos
- Laboratório de Modelagem e Química Computacional, Departamento de Ciências Biológicas e Ciências da Saúde, Universidade Federal do Amapá, Macapá, Brazil
| | - Rosivaldo S. Borges
- Núcleo de Estudos e Seleção de Moléculas Bioativas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil
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22
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Scialis RJ, Aleksunes LM, Csanaky IL, Klaassen CD, Manautou JE. Identification and Characterization of Efflux Transporters That Modulate the Subtoxic Disposition of Diclofenac and Its Metabolites. Drug Metab Dispos 2019; 47:1080-1092. [PMID: 31399506 DOI: 10.1124/dmd.119.086603] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 07/12/2019] [Indexed: 11/22/2022] Open
Abstract
In the present work, in vivo transporter knockout (KO) mouse models were used to characterize the disposition of diclofenac (DCF) and its primary metabolites following a single subtoxic dose in mice lacking breast cancer resistance protein (Bcrp) or multidrug resistance-associated protein (Mrp)3. The results indicate that Bcrp acts as a canalicular efflux mediator for DCF, as wild-type (WT) mice had biliary excretion values that were 2.2- to 2.6-fold greater than Bcrp KO mice, although DCF plasma levels were not affected. The loss of Bcrp resulted in a 1.8- to 3.2-fold increase of diclofenac acyl glucuronide (DCF-AG) plasma concentrations in KO animals compared with WT mice, while the biliary excretion of DCF-AG increased 1.4-fold in WT versus KO mice. Furthermore, Mrp3 was found to mediate the basolateral transport of DCF-AG, but not DCF or 4'-hydroxy diclofenac. WT mice had DCF-AG plasma concentrations 7.0- to 8.6-fold higher than Mrp3 KO animals; however, there were no changes in biliary excretion of DCF-AG. Vesicular transport experiments with human MRP3 demonstrated that MRP3 is able to transport DCF-AG via low- and high-affinity binding sites. The low-affinity MRP3 transport had a V max and K m of 170 pmol/min/mg and 98.2 µM, respectively, while the high-affinity V max and K m parameters were estimated to be 71.9 pmol/min/mg and 1.78 µM, respectively. In summary, we offer evidence that the disposition of DCF-AG can be affected by both Bcrp and Mrp3, and these findings may be applicable to humans.
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Affiliation(s)
- Renato J Scialis
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut (R.J.S., J.E.M.), Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas (L.M.A., I.L.C., C.D.K.) and Department of Internal Medicine, University of Kansas Medical Center, Kansas City (C.D.K.)
| | - Lauren M Aleksunes
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut (R.J.S., J.E.M.), Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas (L.M.A., I.L.C., C.D.K.) and Department of Internal Medicine, University of Kansas Medical Center, Kansas City (C.D.K.)
| | - Iván L Csanaky
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut (R.J.S., J.E.M.), Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas (L.M.A., I.L.C., C.D.K.) and Department of Internal Medicine, University of Kansas Medical Center, Kansas City (C.D.K.)
| | - Curtis D Klaassen
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut (R.J.S., J.E.M.), Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas (L.M.A., I.L.C., C.D.K.) and Department of Internal Medicine, University of Kansas Medical Center, Kansas City (C.D.K.)
| | - José E Manautou
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut (R.J.S., J.E.M.), Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas (L.M.A., I.L.C., C.D.K.) and Department of Internal Medicine, University of Kansas Medical Center, Kansas City (C.D.K.)
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Aycan İÖ, Elpek Ö, Akkaya B, Kıraç E, Tuzcu H, Kaya S, Coşkunfırat N, Aslan M. Diclofenac induced gastrointestinal and renal toxicity is alleviated by thymoquinone treatment. Food Chem Toxicol 2018; 118:795-804. [PMID: 29935248 DOI: 10.1016/j.fct.2018.06.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/11/2018] [Accepted: 06/18/2018] [Indexed: 02/06/2023]
Abstract
The aim of this study was to investigate whether thymoquinone (TQ) could alleviate diclofenac (DCLF)-induced gastrointestinal and renal toxicity in rats. Diclofenac was administered via intramuscular injection twice daily for 5 days and TQ was given by gavage for the same period. Hematological and biochemical profiles were measured with autoanalyzers while reactive oxygen/nitrogen species (ROS/RNS) generation and total antioxidant capacity (TAC) were assayed by standard kits. Tissue injuries were evaluated by microscopy and histopathological scoring. Diclofenac treatment caused kidney and liver function test abnormalities, reduced hematocrit and hemoglobin levels but increased WBC and platelet counts. Histopathological findings showed renal tubular damage, gastrointestinal lesions and increased fibrosis in DCLF treated rats. Thymoquinone administration, along with DCLF treatment, attenuated hematological test abnormalities and DCLF induced renal functional impairment as evident by significantly restored serum creatinine and blood urea nitrogen levels. Similarly, TQ treatment significantly alleviated liver function test abnormalities and decreased tissue injury in the stomach and duodenum. Diclofenac treatment caused increased ROS/RNS formation and decreased TAC in the kidney, stomach and duodenal tissue. Thymoquinone administration increased gastrointestinal and renal TAC in DCLF treated rats. These results indicate that TQ could ameliorate gastrointestinal and renal toxicity induced by high dose DCLF treatment.
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Affiliation(s)
- İlker Öngüç Aycan
- Department of Anesthesiology, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Özlem Elpek
- Department of Pathology, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Bahar Akkaya
- Department of Pathology, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Ebru Kıraç
- Department of Medical Biochemistry, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Hazal Tuzcu
- Department of Medical Biochemistry, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Sabriye Kaya
- Department of Medical Biochemistry, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Nesil Coşkunfırat
- Department of Anesthesiology, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
| | - Mutay Aslan
- Department of Medical Biochemistry, Akdeniz University Medical Faculty, 07070, Antalya, Turkey.
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Wilson CE, Dickie AP, Schreiter K, Wehr R, Wilson EM, Bial J, Scheer N, Wilson ID, Riley RJ. The pharmacokinetics and metabolism of diclofenac in chimeric humanized and murinized FRG mice. Arch Toxicol 2018; 92:1953-1967. [PMID: 29721588 DOI: 10.1007/s00204-018-2212-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/25/2018] [Indexed: 11/30/2022]
Abstract
The pharmacokinetics of diclofenac were investigated following single oral doses of 10 mg/kg to chimeric liver humanized and murinized FRG and C57BL/6 mice. In addition, the metabolism and excretion were investigated in chimeric liver humanized and murinized FRG mice. Diclofenac reached maximum blood concentrations of 2.43 ± 0.9 µg/mL (n = 3) at 0.25 h post-dose with an AUCinf of 3.67 µg h/mL and an effective half-life of 0.86 h (n = 2). In the murinized animals, maximum blood concentrations were determined as 3.86 ± 2.31 µg/mL at 0.25 h post-dose with an AUCinf of 4.94 ± 2.93 µg h/mL and a half-life of 0.52 ± 0.03 h (n = 3). In C57BL/6J mice, mean peak blood concentrations of 2.31 ± 0.53 µg/mL were seen 0.25 h post-dose with a mean AUCinf of 2.10 ± 0.49 µg h/mL and a half-life of 0.51 ± 0.49 h (n = 3). Analysis of blood indicated only trace quantities of drug-related material in chimeric humanized and murinized FRG mice. Metabolic profiling of urine, bile and faecal extracts revealed a complex pattern of metabolites for both humanized and murinized animals with, in addition to unchanged parent drug, a variety of hydroxylated and conjugated metabolites detected. The profiles in humanized mice were different to those of both murinized and wild-type animals, e.g., a higher proportion of the dose was detected in the form of acyl glucuronide metabolites and much reduced amounts as taurine conjugates. Comparison of the metabolic profiles obtained from the present study with previously published data from C57BL/6J mice and humans revealed a greater, though not complete, match between chimeric humanized mice and humans, such that the liver humanized FRG model may represent a model for assessing the biotransformation of such compounds in humans.
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Affiliation(s)
- C E Wilson
- Nestlé Skin Health R&D, Les Templiers, Route des Colles, BP 87, 06902, Sophia-Antipolis, France.
| | - A P Dickie
- Evotec (UK) Ltd, 114 Innovation Drive, Abingdon, Oxfordshire, OX14 4RZ, UK
| | - K Schreiter
- Evotec International GmbH, Manfred Eigen Campus, Essener Bogen 7, Hamburg, Germany
| | - R Wehr
- Evotec International GmbH, Manfred Eigen Campus, Essener Bogen 7, Hamburg, Germany
| | - E M Wilson
- Yecuris Corporation, PO Box 4645, Tualatin, OR, 97062, USA
| | - J Bial
- Yecuris Corporation, PO Box 4645, Tualatin, OR, 97062, USA
| | - N Scheer
- CEVEC Pharmaceuticals GmbH, Gottfried-Hagen-Str. 60-62, 51105, Cologne, Germany
| | - I D Wilson
- Department of Surgery and Cancer, Imperial College, Exhibition Rd, South Kensington, London, SW7 2AZ, UK
| | - R J Riley
- Evotec (UK) Ltd, Alderley Park, Nether Alderley, Cheshire, SK10 4TG, UK
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25
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Dickie A, Wilson C, Schreiter K, Wehr R, Wilson E, Bial J, Scheer N, Wilson I, Riley R. The pharmacokinetics and metabolism of lumiracoxib in chimeric humanized and murinized FRG mice. Biochem Pharmacol 2017; 135:139-150. [DOI: 10.1016/j.bcp.2017.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/21/2017] [Indexed: 10/19/2022]
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26
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Bonnefille B, Arpin-Pont L, Gomez E, Fenet H, Courant F. Metabolic profiling identification of metabolites formed in Mediterranean mussels (Mytilus galloprovincialis) after diclofenac exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 583:257-268. [PMID: 28108094 DOI: 10.1016/j.scitotenv.2017.01.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 06/06/2023]
Abstract
Despite the growing concern on the presence of pharmaceutically active compounds in the environment, few studies have been conducted on their metabolism in marine organisms. In this study, a non-targeted strategy based on the generation of chemical profiles generated by liquid chromatography combined with high resolution mass spectrometry was used to highlight metabolite production by the Mediterranean mussel (Mytilus galloprovincialis) after diclofenac exposure. This method allowed revealing the production of 13 metabolites in mussel tissues. Three of them were phase I metabolites, including 4'-hydroxy-diclofenac and 5-hydroxy-diclofenac. The remaining 10 were phase II metabolites, including sulfate and amino acids conjugates. Among all of the metabolites highlighted, 5 were reported for the first time in an aquatic organism exposed to diclofenac.
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Affiliation(s)
- Bénilde Bonnefille
- UMR 5569 Hydrosciences Montpellier, Université Montpellier, Montpellier, France
| | - Lauren Arpin-Pont
- UMR 5569 Hydrosciences Montpellier, Université Montpellier, Montpellier, France
| | - Elena Gomez
- UMR 5569 Hydrosciences Montpellier, Université Montpellier, Montpellier, France
| | - Hélène Fenet
- UMR 5569 Hydrosciences Montpellier, Université Montpellier, Montpellier, France
| | - Frédérique Courant
- UMR 5569 Hydrosciences Montpellier, Université Montpellier, Montpellier, France.
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Chew CC, Ng S, Chee YL, Koo TW, Liew MH, Chee ELC, Modamio P, Fernández C, Mariño EL, Segarra I. Diclofenac sex-divergent drug-drug interaction with Sunitinib: pharmacokinetics and tissue distribution in male and female mice. Invest New Drugs 2017; 35:399-411. [DOI: 10.1007/s10637-017-0447-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 02/27/2017] [Indexed: 12/20/2022]
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Pickup K, Martin S, Partridge EA, Jones HB, Wills J, Schulz-Utermoehl T, McCarthy A, Rodrigues A, Page C, Ratcliffe K, Sarda S, Wilson ID. Acute liver effects, disposition and metabolic fate of [ 14C]-fenclozic acid following oral administration to normal and bile-cannulated male C57BL/6J mice. Arch Toxicol 2016; 91:2643-2653. [PMID: 27896398 PMCID: PMC5489613 DOI: 10.1007/s00204-016-1894-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 11/15/2016] [Indexed: 11/25/2022]
Abstract
The distribution, metabolism, excretion and hepatic effects of the human hepatotoxin fenclozic acid were investigated following single oral doses of 10 mg/kg to normal and bile duct-cannulated male C57BL/6J mice. Whole body autoradiography showed distribution into all tissues except the brain, with radioactivity still detectable in blood, kidney and liver at 72 h post-dose. Mice dosed with [14C]-fenclozic acid showed acute centrilobular hepatocellular necrosis, but no other regions of the liver were affected. The majority of the [14C]-fenclozic acid-related material recovered was found in the urine/aqueous cage wash, (49%) whilst a smaller portion (13%) was eliminated via the faeces. Metabolic profiles for urine, bile and faecal extracts, obtained using liquid chromatography and a combination of mass spectrometric and radioactivity detection, revealed extensive metabolism of fenclozic acid in mice that involved biotransformations via both oxidation and conjugation. These profiling studies also revealed the presence of glutathione-derived metabolites providing evidence for the production of reactive species by mice administered fenclozic acid. Covalent binding to proteins from liver, kidney and plasma was also demonstrated, although this binding was relatively low (less than 50 pmol eq./mg protein).
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Affiliation(s)
- Kathryn Pickup
- Cyprotex Discovery Ltd, 15 Beech Lane, Macclesfield, Cheshire, SK10 2DR, UK
| | - Scott Martin
- Drug Metabolism and Pharmacokinetics, Oncology iMED Chesterford Science Park, AstraZeneca UK Ltd., Saffron Walden, Essex, CB10 1XL, UK
| | - Elizabeth A Partridge
- Drug Metabolism and Pharmacokinetics IM, AstraZeneca UK Ltd, Alderley Park, Macclesfield, Cheshire, SK10 4TG, UK
| | - Huw B Jones
- Global Safety Assessment Department, Alderley Park, AstraZeneca UK Ltd, Macclesfield, Cheshire, SK10 4TG, UK
| | - Jonathan Wills
- Drug Metabolism and Pharmacokinetics IM, AstraZeneca UK Ltd, Alderley Park, Macclesfield, Cheshire, SK10 4TG, UK
| | | | - Alan McCarthy
- In Vivo Assays Ltd, c/o Biohub, Alderley Park, Macclesfield, SK10 4TG, UK
| | - Alison Rodrigues
- Molecular and Clinical Pharmacology, MRC Centre for Drug Safety Science, Sherrington Building, University of Liverpool, Ashton Street, L69 3GE, Liverpool, UK
| | - Chris Page
- Agilent Technologies Inc., 5500 Lakeside, Cheadle, SK8 3GR, UK
| | - Kerry Ratcliffe
- Global Safety Assessment Department, Alderley Park, AstraZeneca UK Ltd, Macclesfield, Cheshire, SK10 4TG, UK
| | - Sunil Sarda
- Discovery Sciences IM, Milton Science Park, AstraZeneca UK Ltd., Cambridge, Cambridgeshire, CB40FZ, UK
| | - Ian D Wilson
- Department of Surgery and Cancer, Imperial College, Exhibition Rd, South Kensington, London, SW7 2AZ, UK.
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Jewell KS, Falås P, Wick A, Joss A, Ternes TA. Transformation of diclofenac in hybrid biofilm-activated sludge processes. WATER RESEARCH 2016; 105:559-567. [PMID: 27690310 PMCID: PMC5250799 DOI: 10.1016/j.watres.2016.08.002] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/11/2016] [Accepted: 08/01/2016] [Indexed: 05/22/2023]
Abstract
The biotransformation of diclofenac during wastewater treatment was investigated. Attached growth biomass from a carrier-filled compartment of a hybrid-MBBR at the wastewater treatment plant (WWTP) in Bad Ragaz, Switzerland was used to test the biotransformation. Laboratory-scale incubation experiments were performed with diclofenac and carriers and high-resolution LC-QTof-MS was implemented to monitor the biotransformation. Up to 20 diclofenac transformation products (TPs) were detected. Tentative structures were proposed for 16 of the TPs after characterization by MS2 fragmentation and/or inferring the structure from the transformation pathway and the molecular formula given by the high resolution ionic mass. The remaining four TPs were unambiguously identified via analytical reference standards. The postulated reactions forming the TPs were: hydroxylation, decarboxylation, oxidation, amide formation, ring-opening and reductive dechlorination. Incubation experiments of individual TPs, those which were available as reference standards, provided a deeper look into the transformation pathways. It was found that the transformation consists of four main pathways but no pathway accounted for a clear majority of the transformation. A 10-day monitoring campaign of the full-scale plant confirmed an 88% removal of diclofenac (from approximately 1.6 μg/L in WWTP influent) and the formation of TPs as found in the laboratory was observed. One of the TPs, N-(2,6-dichlorophenyl)-2-indolinone detected at concentrations of around 0.25 μg/L in WWTP effluent, accounting for 16% of the influent diclofenac concentration. The biotransformation of carriers was compared to a second WWTP not utilising carriers. It was found that in contact with activated sludge, similar hydroxylation and decarboxylation reactions occurred but at much slower rates, whereas some reactions, e.g. reductive dechlorination, were not detected at all. Finally, incubation experiments were performed with attached growth biomass from a third WWTP with a similar process configuration to Bad Ragaz WWTP. A similarly effective removal of diclofenac was found with a similar presence of TPs.
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Affiliation(s)
- Kevin S Jewell
- Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany
| | - Per Falås
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - Arne Wick
- Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany
| | - Adriano Joss
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - Thomas A Ternes
- Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany.
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Akingbasote JA, Foster AJ, Jones HB, David R, Gooderham NJ, Wilson ID, Kenna JG. Improved hepatic physiology in hepatic cytochrome P450 reductase null (HRN™) mice dosed orally with fenclozic acid. Toxicol Res (Camb) 2016; 6:81-88. [PMID: 30090479 DOI: 10.1039/c6tx00376a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/07/2016] [Indexed: 12/27/2022] Open
Abstract
Hepatic NADPH-cytochrome P450 oxidoreductase null (HRN™) mice exhibit no functional expression of hepatic cytochrome P450 (P450) when compared to wild type (WT) mice, but have normal hepatic and extrahepatic expression of other biotransformation enzymes. We have assessed the utility of HRN™ mice for investigation of the role of metabolic bioactivation in liver toxicity caused by the nonsteroidal anti-inflammatory drug (NSAID) fenclozic acid. In vitro studies revealed significant NADPH-dependent (i.e. P450-mediated) covalent binding of [14C]-fenclozic acid to liver microsomes from WT mice and HRN™ mice, whereas no in vitro covalent binding was observed in the presence of the UDP-glucuronyltransferase cofactor UDPGA. Oral fenclozic acid administration did not alter the liver histopathology or elevate the plasma liver enzyme activities of WT mice, or affect their hepatic miRNA contents. Livers from HRN™ mice exhibited abnormal liver histopathology (enhanced lipid accumulation, bile duct proliferation, hepatocellular degeneration, necrosis, inflammatory cell infiltration) and plasma clinical chemistry (elevated alanine aminotransferase, glutamate dehydrogenase and alkaline phosphatase activities). Modest apparent improvements in these abnormalities were observed when HRN™ mice were dosed orally with fenclozic acid for 7 days at 100 mg kg-1 day-1. Previously we observed more marked effects on liver histopathology and integrity in HRN™ mice dosed orally with the NSAID diclofenac for 7 days at 30 mg kg-1 day-1. We conclude that HRN™ mice are valuable for assessing P450-related hepatic drug biotransformation, but not for drug toxicity studies due to underlying liver dysfunction. Nonetheless, HRN™ mice may provide novel insights into the role of inflammation in liver injury, thereby aiding its treatment.
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Affiliation(s)
- James A Akingbasote
- MRC Centre for Drug Safety Science , University of Liverpool , Liverpool , L69 3GE , UK .
| | - Alison J Foster
- Drug Safety and Metabolism , Unit 310 - Darwin Building , Cambridge Science Park , Milton Road , Cambridge , CB4 0WG , UK . ; ;
| | - Huw B Jones
- Drug Safety and Metabolism , Unit 310 - Darwin Building , Cambridge Science Park , Milton Road , Cambridge , CB4 0WG , UK . ; ;
| | - Rhiannon David
- Drug Safety and Metabolism , Unit 310 - Darwin Building , Cambridge Science Park , Milton Road , Cambridge , CB4 0WG , UK . ; ;
| | - Nigel J Gooderham
- Section of Computational and Systems Medicine , Department of Surgery and Cancer Faculty of Medicine , Imperial College London , South Kensington Campus , London , SW7 2AZ UK . ;
| | - Ian D Wilson
- Section of Computational and Systems Medicine , Department of Surgery and Cancer Faculty of Medicine , Imperial College London , South Kensington Campus , London , SW7 2AZ UK . ;
| | - J Gerry Kenna
- Drug Safety Consultant , Macclesfield , UK . ; Tel: +44 (0)1625432113
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Sunitinib DDI with paracetamol, diclofenac, mefenamic acid and ibuprofen shows sex-divergent effects on the tissue uptake and distribution pattern of sunitinib in mice. Cancer Chemother Pharmacol 2016; 78:709-18. [PMID: 27495788 DOI: 10.1007/s00280-016-3120-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/28/2016] [Indexed: 12/21/2022]
Abstract
PURPOSE Pharmacokinetic interaction of sunitinib with diclofenac, paracetamol, mefenamic acid and ibuprofen was evaluated due to their P450 mediated metabolism and OATP1B1, OATP1B3, ABCB1, ABCG2 transporters overlapping features. METHODS Male and female mice were administered 6 sunitinib doses (60 mg/kg) PO every 12 h and 30 min before the last dose were administered vehicle (control groups), 250 mg/kg paracetamol, 30 mg/kg diclofenac, 50 mg/kg mefenamic acid or 30 mg/kg ibuprofen (study groups), euthanized 6 h post last administration and sunitinib plasma, liver, kidney, brain concentrations analyzed. RESULTS Ibuprofen halved sunitinib plasma concentration in female mice (p < 0.01) and showed 59 % lower concentration than male mice (p < 0.05). Diclofenac and paracetamol female mice showed 45 and 25 % higher plasma concentrations than male mice which were 27 % lower in mefenamic acid female mice. Paracetamol increased 2.2 (p < 0.05) liver and 1.4-fold (p < 0.05) kidney sunitinib concentrations in male mice that were lower in female mice (p < 0.01, p < 0.001, respectively). Ibuprofen increased 2.9-fold (p < 0.01) liver concentration in male mice that were higher than in female mice (p < 0.001). Female control mice had 35 % higher sunitinib brain concentration than male mice but the concentration decreased 37, 33, 10 and 57 % in the diclofenac, paracetamol, mefenamic acid and ibuprofen (p < 0.001), respectively. Tissue-plasma concentrations correlations were nonsignificant in control, paracetamol, mefenamic acid and ibuprofen groups but was significant in the diclofenac group in male mice (liver, brain) and female mice (liver, kidney). CONCLUSIONS These results portray gender-based sunitinib pharmacokinetic differences and NSAIDs selective effects on male or female mice, with potential clinical translatability.
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32
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P Dickie A, Wilson CE, Schreiter K, Wehr R, D Wilson I, Riley R. Lumiracoxib metabolism in male C57bl/6J mice: characterisation of novel in vivo metabolites. Xenobiotica 2016; 47:538-546. [PMID: 27430634 DOI: 10.1080/00498254.2016.1206239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. The pharmacokinetics and metabolism of lumiracoxib in male C57bl/6J mice were investigated following a single oral dose of 10 mg/kg. 2. Lumiracoxib achieved peak observed concentrations in the blood of 1.26 + 0.51 μg/mL 0.5 h (0.5-1.0) post-dose with an AUCinf of 3.48 + 1.09 μg h/mL. Concentrations of lumiracoxib then declined with a terminal half-life of 1.54 + 0.31 h. 3. Metabolic profiling showed only the presence of unchanged lumiracoxib in blood by 24 h, while urine, bile and faecal extracts contained, in addition to the unchanged parent drug, large amounts of hydroxylated and conjugated metabolites. 4. No evidence was obtained in the mouse for the production of the downstream products of glutathione conjugation such as mercapturates, suggesting that the metabolism of the drug via quinone-imine generating pathways is not a major route of biotransformation in this species. Acyl glucuronidation appeared absent or a very minor route. 5. While there was significant overlap with reported human metabolites, a number of unique mouse metabolites were detected, particularly taurine conjugates of lumiracoxib and its oxidative metabolites.
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Affiliation(s)
| | | | - Kay Schreiter
- b Evotec International GmbH , In Vivo Pharmacology, Göttingen , Germany , and
| | - Roland Wehr
- b Evotec International GmbH , In Vivo Pharmacology, Göttingen , Germany , and
| | - Ian D Wilson
- c Imperial College London, Surgery and Cancer , London
| | - Rob Riley
- a Evotec UK Ltd , Milton Park, Abingdon , UK
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Malik MY, Jaiswal S, Sharma A, Shukla M, Lal J. Role of enterohepatic recirculation in drug disposition: cooperation and complications. Drug Metab Rev 2016; 48:281-327. [PMID: 26987379 DOI: 10.3109/03602532.2016.1157600] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Enterohepatic recirculation (EHC) concerns many physiological processes and notably affects pharmacokinetic parameters such as plasma half-life and AUC as well as estimates of bioavailability of drugs. Also, EHC plays a detrimental role as the compounds/drugs are allowed to recycle. An in-depth comprehension of this phenomenon and its consequences on the pharmacological effects of affected drugs is important and decisive in the design and development of new candidate drugs. EHC of a compound/drug occurs by biliary excretion and intestinal reabsorption, sometimes with hepatic conjugation and intestinal deconjugation. EHC leads to prolonged elimination half-life of the drugs, altered pharmacokinetics and pharmacodynamics. Study of the EHC of any drug is complicated due to unavailability of the apposite model, sophisticated procedures and ethical concerns. Different in vitro and in vivo methods for studies in experimental animals and humans have been devised, each having its own merits and demerits. Involvement of the different transporters in biliary excretion, intra- and inter-species, pathological and biochemical variabilities obscure the study of the phenomenon. Modeling of drugs undergoing EHC has always been intricate and exigent models have been exploited to interpret the pharmacokinetic profiles of drugs witnessing multiple peaks due to EHC. Here, we critically appraise the mechanisms of bile formation, factors affecting biliary drug elimination, methods to estimate biliary excretion of drugs, EHC, multiple peak phenomenon and its modeling.
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Affiliation(s)
- Mohd Yaseen Malik
- a Department of Pharmaceutics , National Institute of Pharmaceutical Education and Research (NIPER) , Raebareli , India ;,b Pharmacokinetics & Metabolism Division , CSIR-Central Drug Research Institute , Lucknow , India
| | - Swati Jaiswal
- b Pharmacokinetics & Metabolism Division , CSIR-Central Drug Research Institute , Lucknow , India ;,c Academy of Scientific and Innovative Research , New Delhi , India
| | - Abhisheak Sharma
- b Pharmacokinetics & Metabolism Division , CSIR-Central Drug Research Institute , Lucknow , India ;,c Academy of Scientific and Innovative Research , New Delhi , India ;,d Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , USA
| | - Mahendra Shukla
- b Pharmacokinetics & Metabolism Division , CSIR-Central Drug Research Institute , Lucknow , India ;,c Academy of Scientific and Innovative Research , New Delhi , India
| | - Jawahar Lal
- b Pharmacokinetics & Metabolism Division , CSIR-Central Drug Research Institute , Lucknow , India ;,c Academy of Scientific and Innovative Research , New Delhi , India
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Scialis RJ, Csanaky IL, Goedken MJ, Manautou JE. Multidrug Resistance-Associated Protein 3 Plays an Important Role in Protection against Acute Toxicity of Diclofenac. Drug Metab Dispos 2015; 43:944-50. [PMID: 25897176 DOI: 10.1124/dmd.114.061705] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/20/2015] [Indexed: 11/22/2022] Open
Abstract
Diclofenac (DCF) is a nonsteroidal anti-inflammatory drug commonly prescribed to reduce pain in acute and chronic inflammatory diseases. One of the main DCF metabolites is a reactive diclofenac acyl glucuronide (DCF-AG) that covalently binds to biologic targets and may contribute to adverse drug reactions arising from DCF use. Cellular efflux of DCF-AG is partially mediated by multidrug resistance-associated proteins (Mrp). The importance of Mrp2 during DCF-induced toxicity has been established, yet the role of Mrp3 remains largely unexplored. In the present work, Mrp3-null (KO) mice were used to study the toxicokinetics and toxicodynamics of DCF and its metabolites. DCF-AG plasma concentrations were 90% lower in KO mice than in wild-type (WT) mice, indicating that Mrp3 mediates DCF-AG basolateral efflux. In contrast, there were no differences in DCF-AG biliary excretion between WT and KO, suggesting that only DCF-AG basolateral efflux is compromised by Mrp3 deletion. Susceptibility to toxicity was also evaluated after a single high DCF dose. No signs of injury were detected in livers and kidneys; however, ulcers were found in the small intestines. Furthermore, the observed intestinal injuries were consistently more severe in KO compared with WT. DCF covalent adducts were observed in liver and small intestines; however, staining intensity did not correlate with the severity of injuries, implying that tissues respond differently to covalent modification. Overall, the data provide strong evidence that (1) in vivo Mrp3 plays an important role in DCF-AG disposition and (2) compromised Mrp3 function can enhance injury in the gastrointestinal tract after DCF treatment.
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Affiliation(s)
- Renato J Scialis
- University of Connecticut, School of Pharmacy, Department of Pharmaceutical Sciences, Storrs, Connecticut (R.J.S., J.E.M.); University of Kansas Medical Center, Department of Internal Medicine, Kansas City, Kansas (I.L.C.); and Office of Translational Science, Rutgers University, Piscataway, New Jersey (M.J.G.)
| | - Iván L Csanaky
- University of Connecticut, School of Pharmacy, Department of Pharmaceutical Sciences, Storrs, Connecticut (R.J.S., J.E.M.); University of Kansas Medical Center, Department of Internal Medicine, Kansas City, Kansas (I.L.C.); and Office of Translational Science, Rutgers University, Piscataway, New Jersey (M.J.G.)
| | - Michael J Goedken
- University of Connecticut, School of Pharmacy, Department of Pharmaceutical Sciences, Storrs, Connecticut (R.J.S., J.E.M.); University of Kansas Medical Center, Department of Internal Medicine, Kansas City, Kansas (I.L.C.); and Office of Translational Science, Rutgers University, Piscataway, New Jersey (M.J.G.)
| | - José E Manautou
- University of Connecticut, School of Pharmacy, Department of Pharmaceutical Sciences, Storrs, Connecticut (R.J.S., J.E.M.); University of Kansas Medical Center, Department of Internal Medicine, Kansas City, Kansas (I.L.C.); and Office of Translational Science, Rutgers University, Piscataway, New Jersey (M.J.G.)
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Hepatic effects of repeated oral administration of diclofenac to hepatic cytochrome P450 reductase null (HRN™) and wild-type mice. Arch Toxicol 2015; 90:853-62. [DOI: 10.1007/s00204-015-1505-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/16/2015] [Indexed: 11/25/2022]
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36
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Kamimura H, Ito S, Nozawa K, Nakamura S, Chijiwa H, Nagatsuka SI, Kuronuma M, Ohnishi Y, Suemizu H, Ninomiya SI. Formation of the Accumulative Human Metabolite and Human-Specific Glutathione Conjugate of Diclofenac in TK-NOG Chimeric Mice with Humanized Livers. Drug Metab Dispos 2014; 43:309-16. [DOI: 10.1124/dmd.114.061689] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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37
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Grimsley A, Foster A, Gallagher R, Hutchison M, Lundqvist A, Pickup K, Wilson ID, Samuelsson K. A comparison of the metabolism of midazolam in C57BL/6J and hepatic reductase null (HRN) mice. Biochem Pharmacol 2014; 92:701-11. [DOI: 10.1016/j.bcp.2014.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 10/02/2014] [Accepted: 10/07/2014] [Indexed: 01/10/2023]
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Diclofenac toxicity in human intestine ex vivo is not related to the formation of intestinal metabolites. Arch Toxicol 2014; 89:107-19. [PMID: 24770551 DOI: 10.1007/s00204-014-1242-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 04/10/2014] [Indexed: 12/22/2022]
Abstract
The use of diclofenac (DCF), a nonsteroidal anti-inflammatory drug, is associated with a high prevalence of gastrointestinal side effects. In vivo studies in rodents suggested that reactive metabolites of DCF produced by the liver or the intestine might be responsible for this toxicity. In the present study, precision-cut intestinal slices (PCIS) prepared from the jejunum of 18 human donors were used as an ex vivo model to investigate whether DCF intestinal metabolites are responsible for its intestinal toxicity in man. PCIS were incubated with a concentration range of DCF (0-600 µM) up to 24 h. DCF (≥400 µM) caused direct toxicity to the intestine as demonstrated by ATP depletion, morphological damage, caspase 3 activation, and lactate dehydrogenase leakage. Three main metabolites produced by PCIS (4'-hydroxy DCF, 5-hydroxy DCF, and DCF acyl glucuronide) were detected by HPLC. Protein adducts were detected by immunohistochemical staining and showed correlation with the intestinal metabolites. DCF induced similar toxicity to each of the samples regardless of the variation in metabolism among them. Less metabolites were produced by slices incubated with 400 µM DCF than with 100 µM DCF. The addition of the metabolic inhibitors such as ketoconazole, cimetidine, or borneol decreased the metabolite formation but increased the toxicity. The results suggest that DCF can induce intestinal toxicity in human PCIS directly at therapeutically relevant concentrations, independent of the reactive metabolites 4'-OH DCF, 5-OH DCF, or diclofenac acylglucuronide produced by the liver or formed in the intestine.
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HPLC–MS Profiling and Structural Identification of [14C]-Diclofenac Metabolites in Mouse Bile. Chromatographia 2013. [DOI: 10.1007/s10337-013-2594-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Brozinski JM, Lahti M, Oikari A, Kronberg L. Identification and dose dependency of ibuprofen biliary metabolites in rainbow trout. CHEMOSPHERE 2013; 93:1789-1795. [PMID: 23835414 DOI: 10.1016/j.chemosphere.2013.06.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 05/24/2013] [Accepted: 06/02/2013] [Indexed: 06/02/2023]
Abstract
The biotransformation of the anti-inflammatory drug ibuprofen (IBF) was studied by exposing rainbow trout (Oncorhynchus mykiss) to IBF via intraperitoneal (i.p.) injection, and via water at four (0.17, 1.9, 13 and 145 μg L(-1)) exposure levels for 4d. Following exposure, the bile was collected and analyzed by LC-MS/MS methods. The identification of the formed metabolites in i.p. injected fish bile was based on the exact mass determinations by a time-of-flight mass analyzer (Q-TOF-MS) and on the studies of fragments and fragmentation patterns of precursor ions by ion trap mass analyzer (IT-MS). In addition to unmetabolized IBF, several phase I and phase II metabolites were found in the bile. The main metabolites were acyl glucuronides and taurine conjugates of IBF and of hydroxylated IBFs. The bioconcentration factors (BCFbile), defined as the ratio of the sum of IBF and its metabolites in fish bile to the concentration of IBF in water, was determined following enzymatic deconjugation and was found to range from 14000 to 49000. The highest BCFbile was found at the lowest exposure concentration (0.17 μg L(-1)). The results show that rainbow trout has a high capacity for biotransformation of IBF, and the exposure of fish to sub μg L(-1) concentrations of IBF can be determined by the analyses of the biliary metabolites of the compound.
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Affiliation(s)
- Jenny-Maria Brozinski
- Åbo Akademi University, Laboratory of Organic Chemistry, Biskopsgatan 8, FI-20500 Åbo/Turku, Finland
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41
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Grunwald H, Hargreaves P, Gebhardt K, Klauer D, Serafyn A, Schmitt-Hoffmann A, Schleimer M, Schlotterbeck G, Wind M. Experiments for a systematic comparison between stable-isotope-(deuterium) labeling and radio-(14C) labeling for the elucidation of the in vitro metabolic pattern of pharmaceutical drugs. J Pharm Biomed Anal 2013; 85:138-44. [DOI: 10.1016/j.jpba.2013.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 06/28/2013] [Accepted: 07/05/2013] [Indexed: 10/26/2022]
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Mani S, Boelsterli UA, Redinbo MR. Understanding and modulating mammalian-microbial communication for improved human health. Annu Rev Pharmacol Toxicol 2013; 54:559-80. [PMID: 24160697 DOI: 10.1146/annurev-pharmtox-011613-140007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The fact that the bacteria in the human gastrointestinal (GI) tract play a symbiotic role was noted as early as 1885, well before we began to manage microbial infections using antibiotics. However, even with the first antimicrobial compounds used in humans, the sulfa drugs, microbes were recognized to be critically involved in the biotransformation of these therapeutics. Thus, the roles played by the microbiota in physiology and in the management of human health have long been appreciated. Detailed examinations of GI symbiotic bacteria that started in the early 2000s and the first phases of the Human Microbiome Project that were completed in 2012 have ushered in an exciting period of granularity with respect to the ecology, genetics, and chemistry of the mammalian-microbial axes of communication. Here we review aspects of the biochemical pathways at play between commensal GI bacteria and several mammalian systems, including both local-epithelia and nonlocal responses impacting inflammation, immunology, metabolism, and neurobiology. Finally, we discuss how the microbial biotransformation of therapeutic compounds, such as anticancer or nonsteroidal anti-inflammatory drugs, can be modulated to reduce toxicity and potentially improve therapeutic efficacy.
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Affiliation(s)
- Sridhar Mani
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461
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Mani S, Boelsterli UA, Redinbo MR. Understanding and modulating mammalian-microbial communication for improved human health. Annu Rev Pharmacol Toxicol 2013; 3. [PMID: 27942535 PMCID: PMC5145265 DOI: 10.11131/2016/101199] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The molecular basis for the regulation of the intestinal barrier is a very fertile research area. A growing body of knowledge supports the targeting of various components of intestinal barrier function as means to treat a variety of diseases, including the inflammatory bowel diseases. Herein, we will summarize the current state of knowledge of key xenobiotic receptor regulators of barrier function, highlighting recent advances, such that the field and its future are succinctly reviewed. We posit that these receptors confer an additional dimension of host-microbe interaction in the gut, by sensing and responding to metabolites released from the symbiotic microbiota, in innate immunity and also in host drug metabolism. The scientific evidence for involvement of the receptors and its molecular basis for the control of barrier function and innate immunity regulation would serve as a rationale towards development of non-toxic probes and ligands as drugs.
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Affiliation(s)
- Sridhar Mani
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461
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Saitta KS, Zhang C, Lee KK, Fujimoto K, Redinbo MR, Boelsterli UA. Bacterial β-glucuronidase inhibition protects mice against enteropathy induced by indomethacin, ketoprofen or diclofenac: mode of action and pharmacokinetics. Xenobiotica 2013; 44:28-35. [PMID: 23829165 DOI: 10.3109/00498254.2013.811314] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
1. We have previously demonstrated that a small molecule inhibitor of bacterial β-glucuronidase (Inh-1; [1-((6,8-dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)-3-(4-ethoxyphenyl)-1-(2-hydroxyethyl)thiourea]) protected mice against diclofenac (DCF)-induced enteropathy. Here we report that Inh-1 was equally protective against small intestinal injury induced by other carboxylic acid-containing non-steroidal anti-inflammatory drugs (NSAIDs), indomethacin (10 mg/kg, ip) and ketoprofen (100 mg/kg, ip). 2. Inh-1 provided complete protection if given prior to DCF (60 mg/kg, ip), and partial protection if administered 3-h post-DCF, suggesting that the temporal window of mucosal protection can be extended for drugs undergoing extensive enterohepatic circulation. 3. Pharmacokinetic analysis of Inh-1 revealed an absolute bioavailability (F) of 21% and a short t1/2 of <1 h. This low F was shown to be due to hepatic first-pass metabolism, as confirmed with the pan-CYP inhibitor, 1-aminobenzotriazole. 4. Using the fluorescent probe 5 (and 6)-carboxy-2',7'-dichlorofluorescein, we demonstrated that Inh-1 did not interfere with hepatobiliary export of glucuronides in gall bladder-cannulated mice. 5. These data are compatible with the hypothesis that pharmacological inhibition of bacterial β-glucuronidase-mediated cleavage of NSAID glucuronides in the small intestinal lumen can protect against NSAID-induced enteropathy caused by locally high concentrations of NSAID aglycones.
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Affiliation(s)
- Kyle S Saitta
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy , Storrs, Connecticut , USA and
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Tan JR, Chakravarthi S, Judson JP, Haleagrahara N, Segarra I. Potential protective effect of sunitinib after administration of diclofenac: biochemical and histopathological drug-drug interaction assessment in a mouse model. Naunyn Schmiedebergs Arch Pharmacol 2013; 386:619-33. [PMID: 23552887 DOI: 10.1007/s00210-013-0861-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 03/22/2013] [Indexed: 01/27/2023]
Abstract
Sunitinib is a tyrosine kinase inhibitor for GIST and advanced renal cell carcinoma. Diclofenac is used in cancer pain management. Coadministration may mediate P450 toxicity. We evaluate their interaction, assessing biomarkers ALT, AST, BUN, creatinine, and histopathological changes in the liver, kidney, heart, brain, and spleen. ICR mice (male, n = 6 per group/dose) were administered saline (group A) or 30 mg/kg diclofenac ip (group B), or sunitinib po at 25, 50, 80, 100, 140 mg/kg (group C) or combination of diclofenac (30 mg/kg, ip) and sunitinib (25, 50, 80, 100, 140 mg/kg po). Diclofenac was administered 15 min before sunitinib, mice were euthanized 4 h post-sunitinib dose, and biomarkers and tissue histopathology were assessed. AST was 92.2 ± 8.0 U/L in group A and 159.7 ± 14.6 U/L in group B (p < 0.05); in group C, it the range was 105.1-152.6 U/L, and in group D, it was 156.0-209.5 U/L (p < 0.05). ALT was 48.9 ± 1.6 U/L (group A), 95.1 ± 4.5 U/L (p < 0.05) in group B, and 50.5-77.5 U/L in group C and 82.3-115.6 U/L after coadministration (p < 0.05). Renal function biomarker BUN was 16.3 ± 0.6 mg/dl (group A) and increased to 29.9 ± 2.6 mg/dl in group B (p < 0.05) and it the range was 19.1-33.3 mg/dl (p < 0.05) and 26.9-40.8 mg/dl in groups C and D, respectively. Creatinine was 5.9 pmol/ml in group A; 6.2 pmol/ml in group B (p < 0.01), and the range was 6.0-6.2 and 6.2-6.4 pmol/ml in groups C and D, respectively (p < 0.05 for D). Histopathological assessment (vascular and inflammation damages) showed toxicity in group B (p < 0.05) and mild toxicity in group C. Damage was significantly lesser in group D than group B (p < 0.05). Spleen only showed toxicity after coadministration. These results suggest vascular and inflammation protective effects of sunitinib, not shown after biomarker analysis.
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Affiliation(s)
- Jian Ren Tan
- Department of Human Biology, School of Medicine, International Medical University, Jalan 19/155B, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
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Huber C, Bartha B, Schröder P. Metabolism of diclofenac in plants--hydroxylation is followed by glucose conjugation. JOURNAL OF HAZARDOUS MATERIALS 2012; 243:250-6. [PMID: 23137548 DOI: 10.1016/j.jhazmat.2012.10.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/28/2012] [Accepted: 10/14/2012] [Indexed: 05/22/2023]
Abstract
Pharmaceuticals from human or veterinary medication form a new class of micropollutants that poses a serious threat to our aquatic environment and its organisms. The intensively used nonsteroidal anti-inflammatory drug diclofenac is found in the environment worldwide due to its poor elimination during waste water treatment processes. In order to test phytoremediation as a tool for the removal of this drug from waste water, the uptake of the compound into plant tissues and its metabolic pathway was addressed using Hordeum vulgare (barley) and a hairy root cell culture of Armoracia rusticana (horse radish) as model species. Diclofenac is taken up by plants and undergoes rapid metabolization; already after 3h of exposure the drug and its metabolites could be detected in the plant tissues. Similar to its fate in mammalian cells the drug is activated in a phase I reaction resulting in the hydroxylated metabolite 4'OH-diclofenac which is conjugated subsequently in phase II to a glucopyranoside, a typical plant specific metabolite. After exposure to 10 and 100 μM diclofenac a concentration dependent formation of the hydroxylated metabolite was observed, while the formation of the phase II metabolite OH-diclofenac glucopyranoside was not positively affected by the higher concentration. To our knowledge this is the first time these two human painkiller metabolites are shown to occur in plant tissues.
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Affiliation(s)
- Christian Huber
- Helmholtz Zentrum München, GmbH, German Research Center for Environmental Health, Research Unit Microbe Plant Interactions, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany
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47
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Boelsterli UA, Redinbo MR, Saitta KS. Multiple NSAID-induced hits injure the small intestine: underlying mechanisms and novel strategies. Toxicol Sci 2012; 131:654-67. [PMID: 23091168 DOI: 10.1093/toxsci/kfs310] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) can cause serious gastrointestinal (GI) injury including jejunal/ileal mucosal ulceration, bleeding, and even perforation in susceptible patients. The underlying mechanisms are largely unknown, but they are distinct from those related to gastric injury. Based on recent insights from experimental models, including genetics and pharmacology in rodents typically exposed to diclofenac, indomethacin, or naproxen, we propose a multiple-hit pathogenesis of NSAID enteropathy. The multiple hits start with an initial pharmacokinetic determinant caused by vectorial hepatobiliary excretion and delivery of glucuronidated NSAID or oxidative metabolite conjugates to the distal small intestinal lumen, where bacterial β-glucuronidase produces critical aglycones. The released aglycones are then taken up by enterocytes and further metabolized by intestinal cytochrome P450s to potentially reactive intermediates. The "first hit" is caused by the NSAID and/or oxidative metabolites that induce severe endoplasmic reticulum stress or mitochondrial stress and lead to cell death. The "second hit" is created by the significant subsequent inflammatory response that would follow such a first-hit injury. Based on these putative mechanisms, strategies have been developed to protect the enterocytes from being exposed to the parent NSAID and/or oxidative metabolites. Among these, a novel strategy already demonstrated in a murine model is the selective disruption of bacteria-specific β-glucuronidases with a novel small molecule inhibitor that does not harm the bacteria and that alleviates NSAID-induced enteropathy. Such mechanism-based strategies require further investigation but provide potential avenues for the alleviation of the GI toxicity caused by multiple NSAID hits.
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Affiliation(s)
- Urs A Boelsterli
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, Connecticut 06269, USA.
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Darnell M, Ulvestad M, Ellis E, Weidolf L, Andersson TB. In Vitro Evaluation of Major In Vivo Drug Metabolic Pathways Using Primary Human Hepatocytes and HepaRG Cells in Suspension and a Dynamic Three-Dimensional Bioreactor System. J Pharmacol Exp Ther 2012; 343:134-44. [DOI: 10.1124/jpet.112.195834] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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49
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LoGuidice A, Wallace BD, Bendel L, Redinbo MR, Boelsterli UA. Pharmacologic targeting of bacterial β-glucuronidase alleviates nonsteroidal anti-inflammatory drug-induced enteropathy in mice. J Pharmacol Exp Ther 2012; 341:447-54. [PMID: 22328575 DOI: 10.1124/jpet.111.191122] [Citation(s) in RCA: 145] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Small intestinal mucosal injury is a frequent adverse effect caused by nonsteroidal anti-inflammatory drugs (NSAIDs). The underlying mechanisms are not completely understood, but topical (luminal) effects have been implicated. Many carboxylic acid-containing NSAIDs, including diclofenac (DCF), are metabolized to acyl glucuronides (AGs), and/or ether glucuronides after ring hydroxylation, and exported into the biliary tree. In the gut, these conjugates are cleaved by bacterial β-glucuronidase, releasing the potentially harmful aglycone. We first confirmed that DCF-AG was an excellent substrate for purified Escherichia coli β-D-glucuronidase. Using a previously characterized novel bacteria-specific β-glucuronidase inhibitor (Inhibitor-1), we then found that the enzymatic hydrolysis of DCF-AG in vitro was inhibited concentration dependently (IC₅₀ ∼164 nM). We next hypothesized that pharmacologic inhibition of bacterial β-glucuronidase would reduce exposure of enterocytes to the aglycone and, as a result, alleviate enteropathy. C57BL/6J mice were administered an ulcerogenic dose of DCF (60 mg/kg i.p.) with or without oral pretreatment with Inhibitor-1 (10 μg per mouse, b.i.d.). Whereas DCF alone caused the formation of numerous large ulcers in the distal parts of the small intestine and increased (2-fold) the intestinal permeability to fluorescein isothiocyanate-dextran, Inhibitor-1 cotreatment significantly alleviated mucosal injury and reduced all parameters of enteropathy. Pharmacokinetic profiling of DCF plasma levels in mice revealed that Inhibitor-1 coadministration did not significantly alter the C(max), half-life, or area under the plasma concentration versus time curve of DCF. Thus, highly selective pharmacologic targeting of luminal bacterial β-D-glucuronidase by a novel class of small-molecule inhibitors protects against DCF-induced enteropathy without altering systemic drug exposure.
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Affiliation(s)
- Amanda LoGuidice
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, Connecticut, USA
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50
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Pickup K, Gavin A, Jones HB, Karlsson E, Page C, Ratcliffe K, Sarda S, Schulz-Utermoehl T, Wilson I. The hepatic reductase null mouse as a model for exploring hepatic conjugation of xenobiotics: Application to the metabolism of diclofenac. Xenobiotica 2011; 42:195-205. [DOI: 10.3109/00498254.2011.607196] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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