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Kotulkar M, Paine-Cabrera D, Robarts DR, Apte U. Regulation of hepatic xenosensor function by HNF4alpha. Toxicol Sci 2024:kfae069. [PMID: 38810120 DOI: 10.1093/toxsci/kfae069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024] Open
Abstract
Nuclear receptors such as Constitutive Androstane Receptor (CAR), Pregnane X Receptor (PXR), and Peroxisome Proliferator-Activated Receptor-alpha (PPARα), and transcription factors with nuclear receptor type activity such as Aryl hydrocarbon Receptor (AhR) function as xenobiotic sensors. Hepatocyte nuclear factor 4alpha (HNF4α) is a highly conserved orphan nuclear receptor essential for liver function. We tested the hypothesis that HNF4α is essential for the function of these four major xenosensors. Wild-type (WT) and hepatocyte-specific Hnf4a null (HNF4α-KO) mice were treated with the mouse-specific activators of AhR (TCDD, 30 µg/kg), CAR (TCPOBOP, 2.5 µg/g), PXR, (PCN, 100 µg/g), and PPARα (WY-14643, 1 mg/kg). Blood and liver tissue samples were collected to study receptor activation. TCDD (AhR agonist) treatment did not affect the liver-to-body weight ratio (LW/BW) in either WT or HNF4α-KO mice. Further, TCDD activated AhR in both WT and HNF4α-KO mice, confirmed by increase in expression of AhR target genes. TCPOBOP (CAR agonist) significantly increased the LW/BW ratio and CAR target gene expression in WT mice, but not in HNF4α-KO mice. PCN (a mouse PXR agonist) significantly increased LW/BW ratio in both WT and HNF4α-KO mice however, it failed to induce PXR target genes in HNF4α-KO mice. The treatment of WY-14643 (PPARα agonist) increased LW/BW ratio and PPARα target gene expression in WT mice but not in HNF4α-KO mice. Together, these data indicate that the function of CAR, PXR, and PPARα but not of AhR was disrupted in HNF4α-KO mice. These results demonstrate that HNF4α function is critical for the activation of hepatic xenosensors, which are critical for toxicological responses.
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Affiliation(s)
- Manasi Kotulkar
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS
| | - Diego Paine-Cabrera
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS
| | - Dakota R Robarts
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS
| | - Udayan Apte
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS
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Stevens S, McPartland M, Bartosova Z, Skåland HS, Völker J, Wagner M. Plastic Food Packaging from Five Countries Contains Endocrine- and Metabolism-Disrupting Chemicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:4859-4871. [PMID: 38441001 PMCID: PMC10956434 DOI: 10.1021/acs.est.3c08250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 03/06/2024]
Abstract
Plastics are complex chemical mixtures of polymers and various intentionally and nonintentionally added substances. Despite the well-established links between certain plastic chemicals (bisphenols and phthalates) and adverse health effects, the composition and toxicity of real-world mixtures of plastic chemicals are not well understood. To assess both, we analyzed the chemicals from 36 plastic food contact articles from five countries using nontarget high-resolution mass spectrometry and reporter-gene assays for four nuclear receptors that represent key components of the endocrine and metabolic system. We found that chemicals activating the pregnane X receptor (PXR), peroxisome proliferator receptor γ (PPARγ), estrogen receptor α (ERα), and inhibiting the androgen receptor (AR) are prevalent in plastic packaging. We detected up to 9936 chemical features in a single product and found that each product had a rather unique chemical fingerprint. To tackle this chemical complexity, we used stepwise partial least-squares regressions and prioritized and tentatively identified the chemical features associated with receptor activity. Our findings demonstrate that most plastic food packaging contains endocrine- and metabolism-disrupting chemicals. Since samples with fewer chemical features induce less toxicity, chemical simplification is key to producing safer plastic packaging.
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Affiliation(s)
- Sarah Stevens
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
| | - Molly McPartland
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
| | - Zdenka Bartosova
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
| | - Hanna Sofie Skåland
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
| | - Johannes Völker
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
| | - Martin Wagner
- Department
of Biology, Norwegian University of Science
and Technology (NTNU), 7491 Trondheim, Norway
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3
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Brožová ZR, Dušek J, Palša N, Maixnerová J, Kamaraj R, Smutná L, Matouš P, Braeuning A, Pávek P, Kuneš J, Gathergood N, Špulák M, Pour M, Carazo A. 2-Substituted quinazolines: Partial agonistic and antagonistic ligands of the constitutive androstane receptor (CAR). Eur J Med Chem 2023; 259:115631. [PMID: 37473690 DOI: 10.1016/j.ejmech.2023.115631] [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: 05/18/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/22/2023]
Abstract
Following the discovery of 2-(3-methoxyphenyl)-3,4-dihydroquinazoline-4-one and 2-(3-methoxyphenyl)quinazoline-4-thione as potent, but non-specific activators of the human Constitutive Androstane Receptor (CAR, NR1I3), a series of quinazolinones substituted at the C2 phenyl ring was prepared to examine their ability to selectively modulate human CAR activity. Employing cellular and in vitro TR-FRET assays with wild-type CAR or its variant 3 (CAR3) ligand binding domains (LBD), several novel partial human CAR agonists and antagonists were identified. 2-(3-Methylphenyl) quinazolinone derivatives 7d and 8d acted as partial agonists with the recombinant CAR LBD, the former in nanomolar units (EC50 = 0.055 μM and 10.6 μM, respectively). Moreover, 7d did not activate PXR, and did not show any signs of cytotoxicity. On the other hand, 2-(4-bromophenyl)quinazoline-4-thione 7l possessed significant CAR antagonistic activity, although the compound displayed no agonistic or inverse agonistic activities. A compound possessing purely antagonistic effect was thus identified for the first time. These and related compounds may serve as a remedy in xenobiotic intoxication or, conversely, in suppression of undesirable hepatic CAR activation.
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Affiliation(s)
- Zuzana Rania Brožová
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jan Dušek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic; Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Norbert Palša
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jana Maixnerová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Rajamanikkam Kamaraj
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Lucie Smutná
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petr Matouš
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Albert Braeuning
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Petr Pávek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jiří Kuneš
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Nicholas Gathergood
- School of Chemistry, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, Lincolnshire, LN6 7DL, United Kingdom
| | - Marcel Špulák
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
| | - Alejandro Carazo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Rodrigues CHP, Mariotto LS, Castro JS, Peruquetti PH, Silva-Junior NC, Bruni AT. Acute, chronic, and post-mortem toxicity: a review focused on three different classes of new psychoactive substances. Forensic Toxicol 2023; 41:187-212. [PMID: 36604359 DOI: 10.1007/s11419-022-00657-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE New psychoactive substances (NPS) are not controlled under the Single Convention on Narcotic Drugs of 1961 or the 1971 Convention, but they may pose a public health threat. Knowledge of the main properties and toxicological effects of these substances is lacking. According to the current Drugs Law (Law n. 11.343/2006), the Brazilian Surveillance Agency issues directives for forbidden substances in Brazil, and structural classes of synthetic cannabinoids, cathinones, and phenylethylamines are considered illicit drugs. Considering that data on these controlled substances are scattered, the main objective of this work was to collect and organize data to generate relevant information on the toxicological properties of NPS. METHODS We carried out a literature review collecting information on the acute, chronic, and post-mortem toxicity of these classes of NSP. We searched info in five scientific databases considering works from 2017 to 2021 and performed a statistical evaluation of the data. RESULTS Results have shown a general lack of studies in this field given that many NPS have not had their toxicity evaluated. We observed a significant difference in the volume of data concerning acute and chronic/post-mortem toxicity. Moreover, studies on the adverse effects of polydrug use are scarce. CONCLUSIONS More in-depth information about the main threats involving NPS use are needed.
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Affiliation(s)
- Caio H P Rodrigues
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
- INCT Forense - Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Lívia S Mariotto
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
- INCT Forense - Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Jade S Castro
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
- INCT Forense - Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Paulo H Peruquetti
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Newton C Silva-Junior
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
- INCT Forense - Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Aline T Bruni
- Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
- INCT Forense - Department of Chemistry, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
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5
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Zhou N, Zhu Y, Hu M, Zheng R, Sun M, Bian Y, Chen X, Li T. Evaluation potential effects of Picroside II on cytochrome P450 enzymes in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2023; 314:116582. [PMID: 37192720 DOI: 10.1016/j.jep.2023.116582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 05/18/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Picrorhiza scrophulariiflora Pennell, a well-known Chinese herb, has been traditionally utilized as an antioxidant and anti-inflammatory agent. One of its main bioactive components is Picroside II, a glycoside derivative. However, there is limited information on the effects of Picroside II on the activity of cytochrome P450 (CYP) enzymes nor on potential herb-drug interactions are rarely studied. AIM OF THE STUDY The purpose of the study was to investigate the effects of Picroside II on the activity of cytochrome P450 enzymes in vitro and in vivo and its potential herb-drug interactions. MATERIALS AND METHODS Specific probe substrates were employed to assess the effect of Picroside II on the activity of P450 enzymes. The inhibitory effects of Picroside II on CYP enzymes were assayed both in human (i.e., 1A, 2C9, 2C19, 2D6, 2E1, and 3A) and rat (i.e., 1A, 2C6/11, 2D1, 2E1, and 3A) liver microsomes in vitro. The inductive effects were investigated in rats following oral gavage of 2.5 mg/kg and 10 mg/kg Picroside II. A specific Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry (UPLC-MS/MS) method was developed to determine the formation of specific metabolites. RESULTS Enzyme inhibition results showed that Picroside II (0.5-200 μM) had no evident inhibitory effects on rat and human liver microsomes in vitro. Interestingly, the administration of multiple doses of 10 mg/kg Picroside II inhibited the activity of CYP2C6/11 by reducing the rate of formation of 4-hydroxydiclofenac and 4-hydroxymephenytoin, while Picroside II at 2.5 mg/kg increased the activity of CYP3A by promoting the formation of 1-hydroxymidazolam and 6-hydroxychlorzoxazone in rats. In addition, there were negligible effects on CYP1A, CYP2D1, and CYP2E1 in rats. CONCLUSIONS The results indicated that Picroside II modulated the activities of CYP enzymes and was involved in CYP2C and CYP3A medicated herb-drug interactions. Therefore, careful monitoring is necessary when Picroside II is used in combination with related conventional drugs.
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Affiliation(s)
- Nan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China
| | - Yujie Zhu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Miaorong Hu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Rongyao Zheng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Mengqi Sun
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China
| | - Yueying Bian
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China
| | - Xijing Chen
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
| | - Tingting Li
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
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6
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Cho HY, Ahn S, Cho YS, Seo SK, Kim DH, Shin JG, Lee SJ. CYP2C19 Contributes to THP-1-Cell-Derived M2 Macrophage Polarization by Producing 11,12- and 14,15-Epoxyeicosatrienoic Acid, Agonists of the PPARγ Receptor. Pharmaceuticals (Basel) 2023; 16:ph16040593. [PMID: 37111350 PMCID: PMC10143178 DOI: 10.3390/ph16040593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Although the functional roles of M1 and M2 macrophages in the immune response and drug resistance are important, the expression and role of cytochrome P450s (CYPs) in these cells remain largely unknown. Differential expression of the 12 most common CYPs (CYP1A1, 1A2, 1B1, 2B6, 2C8, 2C9, 2C19, 2D6, 2E1, 2J2, 3A4, and 3A5) were screened in THP-1-cell-derived M1 and M2 macrophages using reverse transcription PCR. CYP2C19 was highly expressed in THP-1-cell-derived M2 macrophages, but it was negligibly expressed in THP-1-cell-derived M1 macrophages at the mRNA and protein levels as analyzed by reverse transcription quantitative PCR and Western blot, respectively. CYP2C19 enzyme activity was also very high in THP-1-cell-derived M2 compared to M1 macrophages (> 99%, p < 0.01), which was verified using inhibitors of CYP2C19 activity. Endogenous levels of the CYP2C19 metabolites 11,12-epoxyeicosatrienoic acid (11,12-EET) and 14,15-EET were reduced by 40% and 50% in cells treated with the CYP2C19 inhibitor and by 50% and 60% in the culture medium, respectively. Both 11,12-EET and 14,15-EET were identified as PPARγ agonists in an in vitro assay. When THP-1-cell-derived M2 cells were treated with CYP2C19 inhibitors, 11,12- and 14,15-EETs were significantly reduced, and in parallel with the reduction of these CYP2C19 metabolites, the expression of M2 cell marker genes was also significantly decreased (p < 0.01). Therefore, it was suggested that CYP2C19 may contribute to M2 cell polarization by producing PPARγ agonists. Further studies are needed to understand the endogenous role of CYP2C19 in M2 macrophages with respect to immunologic function and cell polarization.
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Affiliation(s)
- Hee Young Cho
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Sangzin Ahn
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Yong-Soon Cho
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Su-Kil Seo
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Department of Microbiology and Immunology, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Dong Hyun Kim
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Jae-Gook Shin
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Su-Jun Lee
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Inje University, Busan 47392, Republic of Korea
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Mejdrová I, Dušek J, Škach K, Stefela A, Skoda J, Chalupský K, Dohnalová K, Pavkova I, Kronenberger T, Rashidian A, Smutná L, Duchoslav V, Smutny T, Pávek P, Nencka R. Discovery of Novel Human Constitutive Androstane Receptor Agonists with the Imidazo[1,2- a]pyridine Structure. J Med Chem 2023; 66:2422-2456. [PMID: 36756805 PMCID: PMC10017030 DOI: 10.1021/acs.jmedchem.2c01140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The nuclear constitutive androstane receptor (CAR, NR1I3) plays significant roles in many hepatic functions, such as fatty acid oxidation, biotransformation, liver regeneration, as well as clearance of steroid hormones, cholesterol, and bilirubin. CAR has been proposed as a hypothetical target receptor for metabolic or liver disease therapy. Currently known prototype high-affinity human CAR agonists such as CITCO (6-(4-chlorophenyl)imidazo[2,1-b][1,3]thiazole-5-carbaldehyde-O-(3,4-dichlorobenzyl)oxime) have limited selectivity, activating the pregnane X receptor (PXR) receptor, a related receptor of the NR1I subfamily. We have discovered several derivatives of 3-(1H-1,2,3-triazol-4-yl)imidazo[1,2-a]pyridine that directly activate human CAR in nanomolar concentrations. While compound 39 regulates CAR target genes in humanized CAR mice as well as human hepatocytes, it does not activate other nuclear receptors and is nontoxic in cellular and genotoxic assays as well as in rodent toxicity studies. Our findings concerning potent human CAR agonists with in vivo activity reinforce the role of CAR as a possible therapeutic target.
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Affiliation(s)
- Ivana Mejdrová
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Jan Dušek
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Kryštof Škach
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Alžbeta Stefela
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Josef Skoda
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Karel Chalupský
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
- Czech
Centre for Phenogenomics, Institute of Molecular
Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Klára Dohnalová
- Czech
Centre for Phenogenomics, Institute of Molecular
Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
- 1st
Medical Faculty, Charles University, Katerinska 32, 112 08 Prague, Czech Republic
| | - Ivona Pavkova
- Faculty
of Military Health Sciences, University
of Defense, Trebeska
1575, 500 01 Hradec
Kralove, Czech Republic
| | - Thales Kronenberger
- Department
of Internal Medicine VIII, University Hospital
of Tübingen, 72076 Tübingen, Germany
- School
of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, 70211 Kuopio, Finland
- Department
of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical
Sciences, Eberhard Karls Universität, 72076 Tübingen, Germany
| | - Azam Rashidian
- Department
of Internal Medicine VIII, University Hospital
of Tübingen, 72076 Tübingen, Germany
| | - Lucie Smutná
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Vojtěch Duchoslav
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Tomas Smutny
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Petr Pávek
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Akademika Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Radim Nencka
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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8
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Finlayson KA, van de Merwe JP, Leusch FDL. Review of ecologically relevant in vitro bioassays to supplement current in vivo tests for whole effluent toxicity testing - Part 2: Non-apical endpoints. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158094. [PMID: 35987232 DOI: 10.1016/j.scitotenv.2022.158094] [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: 02/08/2022] [Revised: 08/03/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Whole effluent toxicity (WET) testing uses whole animal exposures to assess the toxicity of complex mixtures, like wastewater. These assessments typically include four apical endpoints: mortality, growth, development, and reproduction. In the last decade, there has been a shift to alternative methods that align with the 3Rs to replace, reduce, and refine the use of animals in research. In vitro bioassays can provide a cost-effective, high-throughput, ethical alternative to in vivo assays. In addition, they can potentially include additional, more sensitive, environmentally relevant endpoints than traditional toxicity tests. However, the ecological relevance of these endpoints must be established before they are adopted into regulatory frameworks. This is Part 2 of a two-part review that aims to identify in vitro bioassays that are linked to ecologically relevant endpoints that could be included in WET testing. Part 2 of this review focuses on non-apical endpoints that should be incorporated into WET testing. In addition to the four apical endpoints addressed in Part 1, this review identified seven additional toxic outcomes: endocrine disruption, xenobiotic metabolism, carcinogenicity, oxidative stress, inflammation, immunotoxicity and neurotoxicity. For each, the response at the molecular or cellular level measured in vitro was linked to the response at the organism level through a toxicity pathway. Literature from 2015 to 2020 was used to identify suitable bioassays that could be incorporated into WET testing.
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Affiliation(s)
| | - Jason P van de Merwe
- Australian Rivers Institute, Griffith University, Australia; School of Environment and Science, Griffith University, Gold Coast, Australia
| | - Frederic D L Leusch
- Australian Rivers Institute, Griffith University, Australia; School of Environment and Science, Griffith University, Gold Coast, Australia
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9
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SNPs in 3'UTR miRNA Target Sequences Associated with Individual Drug Susceptibility. Int J Mol Sci 2022; 23:ijms232213725. [PMID: 36430200 PMCID: PMC9692299 DOI: 10.3390/ijms232213725] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
The complementary interaction of microRNAs (miRNAs) with their binding sites in the 3'untranslated regions (3'UTRs) of target gene mRNAs represses translation, playing a leading role in gene expression control. MiRNA recognition elements (MREs) in the 3'UTRs of genes often contain single nucleotide polymorphisms (SNPs), which can change the binding affinity for target miRNAs leading to dysregulated gene expression. Accumulated data suggest that these SNPs can be associated with various human pathologies (cancer, diabetes, neuropsychiatric disorders, and cardiovascular diseases) by disturbing the interaction of miRNAs with their MREs located in mRNA 3'UTRs. Numerous data show the role of SNPs in 3'UTR MREs in individual drug susceptibility and drug resistance mechanisms. In this review, we brief the data on such SNPs focusing on the most rigorously proven cases. Some SNPs belong to conventional genes from the drug-metabolizing system (in particular, the genes coding for cytochromes P450 (CYP 450), phase II enzymes (SULT1A1 and UGT1A), and ABCB3 transporter and their expression regulators (PXR and GATA4)). Other examples of SNPs are related to the genes involved in DNA repair, RNA editing, and specific drug metabolisms. We discuss the gene-by-gene studies and genome-wide approaches utilized or potentially utilizable to detect the MRE SNPs associated with individual response to drugs.
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10
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Jacobs MN, Kubickova B, Boshoff E. Candidate Proficiency Test Chemicals to Address Industrial Chemical Applicability Domains for in vitro Human Cytochrome P450 Enzyme Induction. FRONTIERS IN TOXICOLOGY 2022; 4:880818. [PMID: 35795225 PMCID: PMC9252529 DOI: 10.3389/ftox.2022.880818] [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: 02/21/2022] [Accepted: 04/25/2022] [Indexed: 12/14/2022] Open
Abstract
Cytochrome P450 (CYP) enzymes play a key role in the metabolism of both xenobiotics and endogenous chemicals, and the activity of some CYP isoforms are susceptible to induction and/or inhibition by certain chemicals. As CYP induction/inhibition can bring about significant alterations in the level of in vivo exposure to CYP substrates and metabolites, CYP induction/inhibition data is needed for regulatory chemical toxicity hazard assessment. On the basis of available human in vivo pharmaceutical data, a draft Organisation for Economic Co-operation and Development Test Guideline (TG) for an in vitro CYP HepaRG test method that is capable of detecting the induction of four human CYPs (CYP1A1/1A2, 2B6, and 3A4), has been developed and validated for a set of pharmaceutical proficiency chemicals. However to support TG adoption, further validation data was requested to demonstrate the ability of the test method to also accurately detect CYP induction mediated by industrial and pesticidal chemicals, together with an indication on regulatory uses of the test method. As part of "GOLIATH", a European Union Horizon-2020 funded research project on metabolic disrupting chemical testing approaches, work is underway to generate supplemental validated data for an additional set of chemicals with sufficient diversity to allow for the approval of the guideline. Here we report on the process of proficiency chemical selection based on a targeted literature review, the selection criteria and considerations required for acceptance of proficiency chemical selection for OECD TG development (i.e. structural diversity, range of activity, relevant chemical sectors, global restrictions etc). The following 13 proposed proficiency chemicals were reviewed and selected as a suitable set for use in the additional validation experiments: tebuconazole, benfuracarb, atrazine, cypermethrin, chlorpyrifos, perfluorooctanoic acid, bisphenol A, N,N-diethyl-m-toluamide, benzo-[a]-pyrene, fludioxonil, malathion, triclosan, and caffeine. Illustrations of applications of the test method in relation to endocrine disruption and non-genotoxic carcinogenicity are provided.
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Affiliation(s)
- Miriam Naomi Jacobs
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Department of Toxicology, Public Health England (PHE), Harwell Science and Innovation Campus, Chilton, United Kingdom
| | - Barbara Kubickova
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Department of Toxicology, Public Health England (PHE), Harwell Science and Innovation Campus, Chilton, United Kingdom
| | - Eugene Boshoff
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Department of Toxicology, Public Health England (PHE), Harwell Science and Innovation Campus, Chilton, United Kingdom
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11
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Chen L, Guo P, Li W, Jiang X, Zhao Q, Li D, Wang Q, Xiao Y, Xing X, Pang Y, Aschner M, Zhang L, Chen W. Protein phosphatase 2A regulates cytotoxicity and drug resistance by dephosphorylating xenobiotic metabolism enzymes AHR and MDR1. J Biol Chem 2022; 298:101918. [PMID: 35405096 PMCID: PMC9118923 DOI: 10.1016/j.jbc.2022.101918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 11/20/2022] Open
Abstract
Protein phosphatase 2A (PP2A) is a serine/threonine dephosphorylating enzyme complex that plays numerous roles in biological processes, including cell growth and metabolism. However, its specific actions in many of these critical pathways are unclear. To explore mechanisms underlying metabolic enzyme regulation in the liver, we investigated the key pathways involved in regulation of xenobiotic-metabolizing enzymes in a mouse model with hepatocyte-specific deletion of Ppp2r1a, encoding the Aα subunit of PP2A. We performed transcriptome and phosphoproteome analysis in mouse livers at the age of 3 months and identified 2695 differentially expressed genes and 549 upregulated phosphoproteins in homozygous knockout mouse livers compared with WT littermates. In particular, the expression of metabolic enzymes Cyp2e1, Cyp1a1, Cyp1a2, Mdr1a, and Abcg2 was dramatically altered in homozygous knockout mouse livers. We also demonstrated that activation of PP2A reversed the decline of metabolic enzyme expression in primary mouse hepatocytes. We found that specific PP2A holoenzymes were involved in metabolic enzyme induction through dephosphorylation of transcription factors, nuclear receptors, or the target enzymes themselves, leading to dysregulation of xenobiotic metabolism or drug-induced hepatotoxicity. Notably, we confirmed that a regulatory axis, PP2A B56α–aryl hydrocarbon receptor–Cyp1a1, was involved in benzo(a)pyrene-induced cytotoxicity through dephosphorylation of the metabolic nuclear receptor, aryl hydrocarbon receptor, at serine 36. In addition, we showed that PP2A B56δ complexes directly dephosphorylated the multidrug efflux pump MDR1 (encoded by multi-drug resistance gene 1), contributing to drug resistance against the chemotherapeutic 5-fluorouracil. Taken together, these novel findings demonstrate the involvement of PP2A in the regulation of liver metabolism.
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Affiliation(s)
- Liping Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ping Guo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wenxue Li
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Xinhang Jiang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qun Zhao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Science, National Chromatographic Research and Analysis Center, Dalian 116023, China
| | - Daochuan Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qing Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yongmei Xiao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiumei Xing
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yaqin Pang
- Faculty of Toxicology, School of Public Health, Youjiang Medical College for Nationalities, Guangxi 533000, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Lihua Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Science, National Chromatographic Research and Analysis Center, Dalian 116023, China.
| | - Wen Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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12
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Induction by Phenobarbital of Phase I and II Xenobiotic-Metabolizing Enzymes in Bovine Liver: An Overall Catalytic and Immunochemical Characterization. Int J Mol Sci 2022; 23:ijms23073564. [PMID: 35408925 PMCID: PMC8998613 DOI: 10.3390/ijms23073564] [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: 02/14/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 12/15/2022] Open
Abstract
In cattle, phenobarbital (PB) upregulates target drug-metabolizing enzyme (DME) mRNA levels. However, few data about PB's post-transcriptional effects are actually available. This work provides the first, and an almost complete, characterization of PB-dependent changes in DME catalytic activities in bovine liver using common probe substrates and confirmatory immunoblotting investigations. As expected, PB increased the total cytochrome P450 (CYP) content and the extent of metyrapone binding; moreover, an augmentation of protein amounts and related enzyme activities was observed for known PB targets such as CYP2B, 2C, and 3A, but also CYP2E1. However, contradictory results were obtained for CYP1A, while a decreased catalytic activity was observed for flavin-containing monooxygenases 1 and 3. The barbiturate had no effect on the chosen hydrolytic and conjugative DMEs. For the first time, we also measured the 26S proteasome activity, and the increase observed in PB-treated cattle would suggest this post-translational event might contribute to cattle DME regulation. Overall, this study increased the knowledge of cattle hepatic drug metabolism, and further confirmed the presence of species differences in DME expression and activity between cattle, humans, and rodents. This reinforced the need for an extensive characterization and understanding of comparative molecular mechanisms involved in expression, regulation, and function of DMEs.
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13
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Pavlíková L, Šereš M, Breier A, Sulová Z. The Roles of microRNAs in Cancer Multidrug Resistance. Cancers (Basel) 2022; 14:cancers14041090. [PMID: 35205839 PMCID: PMC8870231 DOI: 10.3390/cancers14041090] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/16/2022] [Accepted: 02/20/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary The resistance of neoplastic cells to multiple drugs is a serious problem in cancer chemotherapy. The molecular causes of multidrug resistance in cancer are largely known, but less is known about the mechanisms by which cells deliver phenotypic changes that resist the attack of anticancer drugs. The findings of RNA interference based on microRNAs represented a breakthrough in biology and pointed to the possibility of sensitive and targeted regulation of gene expression at the post-transcriptional level. Such regulation is also involved in the development of multidrug resistance in cancer. The aim of the current paper is to summarize the available knowledge on the role of microRNAs in resistance to multiple cancer drugs. Abstract Cancer chemotherapy may induce a multidrug resistance (MDR) phenotype. The development of MDR is based on various molecular causes, of which the following are very common: induction of ABC transporter expression; induction/activation of drug-metabolizing enzymes; alteration of the expression/function of apoptosis-related proteins; changes in cell cycle checkpoints; elevated DNA repair mechanisms. Although these mechanisms of MDR are well described, information on their molecular interaction in overall multidrug resistance is still lacking. MicroRNA (miRNA) expression and subsequent RNA interference are candidates that could be important players in the interplay of MDR mechanisms. The regulation of post-transcriptional processes in the proteosynthetic pathway is considered to be a major function of miRNAs. Due to their complementarity, they are able to bind to target mRNAs, which prevents the mRNAs from interacting effectively with the ribosome, and subsequent degradation of the mRNAs can occur. The aim of this paper is to provide an overview of the possible role of miRNAs in the molecular mechanisms that lead to MDR. The possibility of considering miRNAs as either specific effectors or interesting targets for cancer therapy is also analyzed.
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Affiliation(s)
- Lucia Pavlíková
- Institute of Molecular Physiology and Genetics, Centre of Bioscience, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia;
| | - Mário Šereš
- Institute of Molecular Physiology and Genetics, Centre of Bioscience, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia;
- Correspondence: (M.Š.); (A.B.); (Z.S.)
| | - Albert Breier
- Institute of Molecular Physiology and Genetics, Centre of Bioscience, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia;
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia
- Correspondence: (M.Š.); (A.B.); (Z.S.)
| | - Zdena Sulová
- Institute of Molecular Physiology and Genetics, Centre of Bioscience, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia;
- Correspondence: (M.Š.); (A.B.); (Z.S.)
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14
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Xu J, Liu G, Wang X, Hu Y, Luo H, Ye L, Feng Z, Li C, Kuang M, Zhang L, Zhou Y, Qi X. hUC-MSCs: evaluation of acute and long-term routine toxicity testing in mice and rats. Cytotechnology 2022; 74:17-29. [PMID: 35185283 PMCID: PMC8817012 DOI: 10.1007/s10616-021-00502-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/17/2021] [Indexed: 02/03/2023] Open
Abstract
Human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) are present in human umbilical connective tissue and can differentiate into various cell types. Our previous studies have proved that hUC-MSCs do not lead to allergies and tumorigenesis. In the present study, the acute and long-term toxicity of hUC-MSCs in mice and rats was evaluated. The acute toxicity of hUC-MSCs was assessed in 8-week-old mice receiving two caudal intravenous (i.v.) injections of hUC-MSCs at the maximum tolerated dose of 1.5 × 107 cells/kg with an interval of 8 h and the observation period sustained for 14 days. For the long-term toxicity evaluation, rats were randomly divided into control, low-dose (3.0 × 105 cells/kg), mid-dose (1.5 × 106 cells/kg), and high-dose (7.5 × 106 cells/kg) groups, which were treated with hUC-MSCs via a caudal i.v. injection every 3 days for 90 days. Weight and food intake evaluation was performed for all rats for 2 weeks after the hUC-MSC administration. The animals were then sacrificed for hematological, blood biochemical, and pathological analyses, as well as organ index determination. We observed no obvious acute toxicity of hUC-MSCs in mice at the maximum tolerated dose. Long-term toxicity tests in rats showed no significant differences between HUC-MSC-treated and control groups in the following parameters: body weight, hematological and blood biochemical parameters, and histopathologic changes in the heart, liver, kidneys, and lungs. This study provides evidence of the safety of i.v. hUC-MSCs infusion for future clinical therapies.
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Affiliation(s)
- Jianwei Xu
- grid.413458.f0000 0000 9330 9891National Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Center for Tissue Engineering and Stem Cell Research, Guizhou Province Key Laboratory of Regenerative Medicine, Guizhou Medical University, Guiyang, China ,Key Laboratory of Adult Stem Cell Translational Research, Chinese Academy of Medical Sciences, Guiyang, China ,grid.413458.f0000 0000 9330 9891Department of Pharmacology, School of Basic Medicine, Guizhou Medical University, Guiyang, China
| | - Gang Liu
- grid.413458.f0000 0000 9330 9891Department of Pharmacology, School of Basic Medicine, Guizhou Medical University, Guiyang, China
| | - Xianyao Wang
- grid.413458.f0000 0000 9330 9891National Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Center for Tissue Engineering and Stem Cell Research, Guizhou Province Key Laboratory of Regenerative Medicine, Guizhou Medical University, Guiyang, China
| | - Ya’nan Hu
- grid.263761.70000 0001 0198 0694Department of Cell Biology, Medical College of Soochow University, Suzhou, China
| | - Hongyang Luo
- Department of Otorhinolaryngology, People’s Hospital of Wudang District, Guiyang, China
| | - Lan Ye
- grid.413458.f0000 0000 9330 9891Department of Pharmacology, School of Basic Medicine, Guizhou Medical University, Guiyang, China
| | - Zhanhui Feng
- grid.452244.1Neurological Department, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Chen Li
- Department of Oncology, General Hospital of the Yangtze River Shipping, Wuhan, China
| | - Menglan Kuang
- grid.413458.f0000 0000 9330 9891School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Lijuan Zhang
- grid.413458.f0000 0000 9330 9891School of Nursing, Guizhou Medical University, Guiyang, China
| | - Yixia Zhou
- grid.443382.a0000 0004 1804 268XSchool of Nursing, Guizhou University of Traditional Chinese Medicine, 9# Beijing Road, Guiyang, China ,grid.452244.1Department of Nursing, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xiaolan Qi
- grid.413458.f0000 0000 9330 9891Key Laboratory of Endemic and Ethnic Diseases (Guizhou Medical University), Ministry of Education, 9# Beijing Road, Guiyang, People’s Republic of China ,grid.413458.f0000 0000 9330 9891Key Laboratory of Medical Molecular Biology (Guizhou Medical University), Guiyang, 550004 People’s Republic of China
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15
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Ge J, Huang Y, Lv M, Zhang C, Talukder M, Li J, Li J. Cadmium induced Fak -mediated anoikis activation in kidney via nuclear receptors (AHR/CAR/PXR)-mediated xenobiotic detoxification pathway. J Inorg Biochem 2021; 227:111682. [PMID: 34902763 DOI: 10.1016/j.jinorgbio.2021.111682] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/16/2021] [Accepted: 11/28/2021] [Indexed: 12/13/2022]
Abstract
Cadmium (Cd) is a toxic heavy metal of considerable toxicity, possessing a serious environmental problem that threatening food safety and human health. However, the underlying mechanisms of Cd-induced nephrotoxicity and detoxification response remain largely unclear. Cd was administered at doses of 35, 70, and 140 mg/kg diet with feed for 90 days and produced potential damage to chickens' kidneys. The results showed that Cd exposure induced renal anatomical and histopathological injuries. Cd exposure up-regulated cytochrome P450 enzymes (CYP450s), activated nuclear xenobiotic receptors (NXRs) response, including aryl hydro-carbon receptor (AHR), constitutive androstane receptor (CAR), and pregnane X receptor (PXR) by low and moderate doses of Cd, and induced an increase in CYP isoforms expression. Cd exposure down-regulated phase II detoxification enzymes (glutathione-S-transferase (GST), glutathione peroxidase (GSH-PX) activities, and glutathione (GSH) content), and GST isoforms transcription . Furthermore, ATP-binding cassette (ABC) transporters, multidrug resistance protein (MRP1), and P-glycoprotein (P-GP) levels were elevated by low dose, but high dose inhibited the P-GP expression. Activation of detoxification enzymes lost their ability of resistance as increasing dose of Cd, afterwards brought into severe renal injury. Additionally, Cd suppressed focal adhesion kinase (Fak) and integrins protein expression as well as activated extrinsic pathway and intrinsic pathways, thereby producing anoikis. In conclusion, these results indicated that Cd induced Fak-mediated anoikis activation in the kidney via nuclear receptors (AHR/CAR/PXR)-mediated xenobiotic detoxification pathway.
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Affiliation(s)
- Jing Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, United States
| | - Yan Huang
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, United States
| | - MeiWei Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Cong Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Milton Talukder
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Department of Physiology and Pharmacology, Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Barishal, 8210, Bangladesh
| | - JinYang Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - JinLong Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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16
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Kozaczek M, Bottje W, Albataineh D, Hakkak R. Effects of Short- and Long-Term Soy Protein Feeding on Hepatic Cytochrome P450 Expression in Obese Nonalcoholic Fatty Liver Disease Rat Model. Front Nutr 2021; 8:699620. [PMID: 34262928 PMCID: PMC8273275 DOI: 10.3389/fnut.2021.699620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/03/2021] [Indexed: 12/16/2022] Open
Abstract
Obesity can lead to chronic health complications such as nonalcoholic fatty liver disease (NAFLD). NAFLD is characterized by lipid aggregation in the hepatocytes and inflammation of the liver tissue as a consequence that can contribute to the development of cirrhosis and hepatocellular carcinoma (HCC). Previously, we reported that feeding obese Zucker rats with soy protein isolate (SPI) can reduce liver steatosis when compared with a casein (CAS) diet as a control. However, the effects of SPI on cytochrome P450 (CYP) in an obese rat model are less known. In addition, there is a lack of information concerning the consumption of soy protein in adolescents and its effect in reducing the early onset of NAFLD in this group. Our main goal was to understand if the SPI diet had any impact on the hepatic CYP gene expression when compared with the CAS diet. For this purpose, we used the transcriptomic data obtained in a previous study in which liver samples were collected from obese rats after short-term (eight-week) and long-term (16-week) feeding of SPI (n = 8 per group). To analyze this RNAseq data, we used Ingenuity Pathway Analysis (IPA) software. Comparing short- vs long-term feeding revealed an increase in the number of downregulated CYP genes from three at 8 weeks of SPI diet to five at 16 weeks of the same diet (P ≤ 0.05). On the other hand, upregulated CYP gene numbers showed a small increase in the long-term SPI diet compared to the short-term SPI diet, from 14 genes at 8 weeks to 17 genes at 16 weeks (P ≤ 0.05). The observed changes may have an important role in the attenuation of liver steatosis.
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Affiliation(s)
- Melisa Kozaczek
- Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Department of Poultry Science and The Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR, United States.,Arkansas Children's Research Institute, Little Rock, AR, United States
| | - Walter Bottje
- Department of Poultry Science and The Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Diyana Albataineh
- Department of Poultry Science and The Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Reza Hakkak
- Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Arkansas Children's Research Institute, Little Rock, AR, United States.,Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital, Little Rock, AR, United States
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17
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Hall A, Chanteux H, Ménochet K, Ledecq M, Schulze MSED. Designing Out PXR Activity on Drug Discovery Projects: A Review of Structure-Based Methods, Empirical and Computational Approaches. J Med Chem 2021; 64:6413-6522. [PMID: 34003642 DOI: 10.1021/acs.jmedchem.0c02245] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This perspective discusses the role of pregnane xenobiotic receptor (PXR) in drug discovery and the impact of its activation on CYP3A4 induction. The use of structural biology to reduce PXR activity on drug discovery projects has become more common in recent years. Analysis of this work highlights several important molecular interactions, and the resultant structural modifications to reduce PXR activity are summarized. The computational approaches undertaken to support the design of new drugs devoid of PXR activation potential are also discussed. Finally, the SAR of empirical design strategies to reduce PXR activity is reviewed, and the key SAR transformations are discussed and summarized. In conclusion, this perspective demonstrates that PXR activity can be greatly diminished or negated on active drug discovery projects with the knowledge now available. This perspective should be useful to anyone who seeks to reduce PXR activity on a drug discovery project.
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Affiliation(s)
- Adrian Hall
- UCB, Avenue de l'Industrie, Braine-L'Alleud 1420, Belgium
| | | | | | - Marie Ledecq
- UCB, Avenue de l'Industrie, Braine-L'Alleud 1420, Belgium
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18
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Padmanabhan V, Moeller J, Puttabyatappa M. Impact of gestational exposure to endocrine disrupting chemicals on pregnancy and birth outcomes. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 92:279-346. [PMID: 34452689 DOI: 10.1016/bs.apha.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
With the advent of industrialization, humans are exposed to a wide range of environmental chemicals, many with endocrine disrupting potential. As successful maintenance of pregnancy and fetal development are under tight hormonal control, the gestational exposure to environmental endocrine disrupting chemicals (EDC) have the potential to adversely affect the maternal milieu and support to the fetus, fetal developmental trajectory and birth outcomes. This chapter summarizes the impact of exposure to EDCs both individually and as mixtures during pregnancy, the immediate and long-term consequences of such exposures on the mother and fetus, the direct and indirect mechanisms through which they elicit their effects, factors that modify their action, and the research directions to focus future investigations.
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Affiliation(s)
| | - Jacob Moeller
- Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
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19
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Le Magueresse-Battistoni B. Endocrine disrupting chemicals and metabolic disorders in the liver: What if we also looked at the female side? CHEMOSPHERE 2021; 268:129212. [PMID: 33359838 DOI: 10.1016/j.chemosphere.2020.129212] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 05/07/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are linked to the worldwide epidemic incidence of metabolic disorders and fatty liver diseases, which affects quality of life and represents a high economic cost to society. Energy homeostasis exhibits strong sexual dimorphic traits, and metabolic organs respond to EDCs depending on sex, such as the liver, which orchestrates both drug elimination and glucose and lipid metabolism. In addition, fatty liver diseases show a strong sexual bias, which in part could also originate from sex differences observed in gut microbiota. The aim of this review is to highlight significant differences in endocrine and metabolic aspects of the liver, between males and females throughout development and into adulthood. It is also to illustrate how the male and female liver differently cope with exposure to various EDCs such as bisphenols, phthalates and persistent organic chemicals in order to draw attention to the need to include both sexes in experimental studies. Interesting data come from analyses of the composition and diversity of the gut microbiota in males exposed to the mentioned EDCs showing significant correlations with hepatic lipid accumulation and metabolic disorders but information on females is lacking or incomplete. As industrialization increases, the list of anthropogenic chemicals to which humans will be exposed will also likely increase. In addition to strengthening existing regulations, encouraging populations to protect themselves and promoting the substitution of harmful chemicals with safe products, innovative strategies based on sex differences in the gut microbiota and in the gut-liver axis could be optimistic outlook.
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20
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Ates MB, Ortatatli M. Phase-1 bioactivation mechanisms of aflatoxin through AhR, CAR and PXR nuclear receptors and the interactions with Nigella sativa seeds and thymoquinone in broilers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111774. [PMID: 33396089 DOI: 10.1016/j.ecoenv.2020.111774] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
Aflatoxins (AFs) are metabolised in two main phases in the liver. Cytochrome p450 enzyme (CYP) 1A1 and CYP2A6 are expressed through AhR, CAR and PXR nuclear receptors in phase-1 biotransformation of AFs. This study is the first to examine phase-1 biotransformation mechanisms of AF and the activity of Nigella sativa seed (NS) and its active ingredient thymoquinone (TQ) on these enzymes and receptors at the molecular level in broilers. Six groups of one day old broiler chicken (20 animals per group) were fed either control feed or a diet containing Aspergillus parasiticus NRRL 2999 culture material (total AFs 2 mg/kg), TQ (300 mg/kg), and NS (5%), either alone or as AF + TQ and AF + NS. Randomly selected from each group, 10 chicks were necropsied, and the livers were removed. Histopathological examination and serum biochemistry results revealed that AF caused hydropic and fatty degenerations, periportal inflammatory infiltrations, acinar arrangement, and biliary duct proliferation in livers and a significant increase at AST, ALT, ALP and GGT levels while significant decreases at serum cholesterol and total protein levels. These aflatoxicosis lesions and deteriorations in biochemistry levels were significantly ameliorated by NS or TQ (p < 0.05). AF was immunohistochemically found to increase strongly the nuclear receptors of AhR, PXR, CAR, and the enzyme activity of CYP1A1 and CYP2A6 responsible for its metabolism, leading to the emergence of toxic effects. Addition of TQ or NS to AF-containing diets improved the negative effects of AF on these receptors and enzymes significantly (p < 0.05). It was concluded that TQ and NS successfully alleviated liver injury by inhibiting or reducing the bioactivation of AF through phase-1 nuclear receptors and CYP-450 enzymes modulation.
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Affiliation(s)
- Mehmet Burak Ates
- Selcuk University, Faculty of Veterinary Medicine, Department of Pathology, 42130 Konya, Turkey.
| | - Mustafa Ortatatli
- Selcuk University, Faculty of Veterinary Medicine, Department of Pathology, 42130 Konya, Turkey
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21
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Wnuk A, Rzemieniec J, Przepiórska K, Wesołowska J, Wójtowicz AK, Kajta M. Autophagy-related neurotoxicity is mediated via AHR and CAR in mouse neurons exposed to DDE. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140599. [PMID: 32721735 DOI: 10.1016/j.scitotenv.2020.140599] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
DDE (dichlorodiphenyldichloroethylene) is an environmental metabolite of the pesticide DDT, which is still present in the environment, and its insecticidal properties are used to fight malaria and the Zika virus disease. We showed for the first time that the neurotoxic effects of DDE involve autophagy, as demonstrated by elevated levels of Becn1, Map1lc3a/MAP1LC3A, Map1lc3b, and Nup62/NUP62 and an increase in autophagosome formation. The suggestion that the aryl hydrocarbon receptor (AHR) and the constitutive androstane receptor (CAR) are involved in the neurotoxic effect of DDE was supported by increases in the mRNA and protein expression of these receptors, as detected by qPCR, ELISA, immunofluorescence labeling and confocal microscopy. Selective antagonists of the receptors, including alpha-naphthoflavone, CH223191, and CINPA 1, inhibited p,p'-DDE- and o,p'-DDE-induced LDH release and caspase-3 activity, while specific siRNAs (Ahr and Car siRNA) reduced the levels of p,p'-DDE- and o,p'-DDE-induced autophagosome formation. Although the neurotoxic effects of DDE were isomer independent, the mechanisms of p,p'- and o,p'-DDE were isomer specific. Therefore, we identified previously unknown mechanisms of the neurotoxic actions of DDE that, in addition to inducing apoptosis, stimulate autophagy in mouse neocortical cultures and induce AHR and CAR signaling.
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Affiliation(s)
- Agnieszka Wnuk
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Laboratory of Molecular Neuroendocrinology, Smetna street 12, 31-343 Krakow, Poland
| | - Joanna Rzemieniec
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Laboratory of Molecular Neuroendocrinology, Smetna street 12, 31-343 Krakow, Poland
| | - Karolina Przepiórska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Laboratory of Molecular Neuroendocrinology, Smetna street 12, 31-343 Krakow, Poland
| | - Julita Wesołowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Laboratory for In vivo and In Vitro Imaging, Smetna street 12, 31-343 Krakow, Poland
| | - Anna Katarzyna Wójtowicz
- University of Agriculture, Faculty of Animal Sciences, Department of Nutrition, Animal Biotechnology and Fisheries, Adama Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Małgorzata Kajta
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Laboratory of Molecular Neuroendocrinology, Smetna street 12, 31-343 Krakow, Poland.
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22
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Hakkola J, Hukkanen J, Turpeinen M, Pelkonen O. Inhibition and induction of CYP enzymes in humans: an update. Arch Toxicol 2020; 94:3671-3722. [PMID: 33111191 PMCID: PMC7603454 DOI: 10.1007/s00204-020-02936-7] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022]
Abstract
The cytochrome P450 (CYP) enzyme family is the most important enzyme system catalyzing the phase 1 metabolism of pharmaceuticals and other xenobiotics such as herbal remedies and toxic compounds in the environment. The inhibition and induction of CYPs are major mechanisms causing pharmacokinetic drug–drug interactions. This review presents a comprehensive update on the inhibitors and inducers of the specific CYP enzymes in humans. The focus is on the more recent human in vitro and in vivo findings since the publication of our previous review on this topic in 2008. In addition to the general presentation of inhibitory drugs and inducers of human CYP enzymes by drugs, herbal remedies, and toxic compounds, an in-depth view on tyrosine-kinase inhibitors and antiretroviral HIV medications as victims and perpetrators of drug–drug interactions is provided as examples of the current trends in the field. Also, a concise overview of the mechanisms of CYP induction is presented to aid the understanding of the induction phenomena.
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Affiliation(s)
- Jukka Hakkola
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Biocenter Oulu, University of Oulu, Oulu, Finland.,Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Janne Hukkanen
- Biocenter Oulu, University of Oulu, Oulu, Finland.,Research Unit of Internal Medicine, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Miia Turpeinen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.,Administration Center, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Olavi Pelkonen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, POB 5000, 90014, Oulu, Finland.
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23
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Kurosaki K, Wu R, Uesawa Y. A Toxicity Prediction Tool for Potential Agonist/Antagonist Activities in Molecular Initiating Events Based on Chemical Structures. Int J Mol Sci 2020; 21:ijms21217853. [PMID: 33113912 PMCID: PMC7660166 DOI: 10.3390/ijms21217853] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/07/2020] [Accepted: 10/21/2020] [Indexed: 12/15/2022] Open
Abstract
Because the health effects of many compounds are unknown, regulatory toxicology must often rely on the development of quantitative structure-activity relationship (QSAR) models to efficiently discover molecular initiating events (MIEs) in the adverse-outcome pathway (AOP) framework. However, the QSAR models used in numerous toxicity prediction studies are publicly unavailable, and thus, they are challenging to use in practical applications. Approaches that simultaneously identify the various toxic responses induced by a compound are also scarce. The present study develops Toxicity Predictor, a web application tool that comprehensively identifies potential MIEs. Using various chemicals in the Toxicology in the 21st Century (Tox21) 10K library, we identified potential endocrine-disrupting chemicals (EDCs) using a machine-learning approach. Based on the optimized three-dimensional (3D) molecular structures and XGBoost algorithm, we established molecular descriptors for QSAR models. Their predictive performances and applicability domain were evaluated and applied to Toxicity Predictor. The prediction performance of the constructed models matched that of the top model in the Tox21 Data Challenge 2014. These advanced prediction results for MIEs are freely available on the Internet.
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24
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Jourová L, Vavreckova M, Zemanova N, Anzenbacher P, Langova K, Hermanova P, Hudcovic T, Anzenbacherova E. Gut Microbiome Alters the Activity of Liver Cytochromes P450 in Mice With Sex-Dependent Differences. Front Pharmacol 2020; 11:01303. [PMID: 33123003 PMCID: PMC7566554 DOI: 10.3389/fphar.2020.01303] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/06/2020] [Indexed: 12/14/2022] Open
Abstract
Sexual differences and the composition/function of the gut microbiome are not considered the most important players in the drug metabolism field; however, from the recent data it is obvious that they may significantly affect the response of the patient to therapy. Here, we evaluated the effect of microbial colonization and sex differences on mRNA expression and the enzymatic activity of hepatic cytochromes P450 (CYPs) in germ-free (GF) mice, lacking the intestinal flora, and control specific-pathogen-free (SPF) mice. We observed a significant increase in the expression of Cyp3a11 in female SPF mice compared to the male group. However, the sex differences were erased in GF mice, and the expression of Cyp3a11 was about the same in both sexes. We have also found higher Cyp2c38 gene expression in female mice compared to male mice in both the SPF and GF groups. Moreover, these changes were confirmed at the level of enzymatic activity, where the female mice exhibit higher levels of functional CYP2C than males in both groups. Interestingly, we observed the same trend as with CYP3A enzymes: a diminished difference between the sexes in GF mice. The presented data indicate that the mouse gut microbiome plays an important role in sustaining sexual dimorphism in terms of hepatic gene expression and metabolism.
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Affiliation(s)
- Lenka Jourová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
| | - Marketa Vavreckova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
| | - Nina Zemanova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
| | - Pavel Anzenbacher
- Department of Pharmacology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
| | - Katerina Langova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
| | - Petra Hermanova
- Institute of Microbiology, Czech Academy of Sciences, Novy Hradek, Czechia
| | - Tomas Hudcovic
- Institute of Microbiology, Czech Academy of Sciences, Novy Hradek, Czechia
| | - Eva Anzenbacherova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czechia
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25
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Loerracher AK, Braunbeck T. Inducibility of cytochrome P450-mediated 7-methoxycoumarin-O-demethylase activity in zebrafish (Danio rerio) embryos. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 225:105540. [PMID: 32569997 DOI: 10.1016/j.aquatox.2020.105540] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/31/2020] [Accepted: 06/07/2020] [Indexed: 06/11/2023]
Abstract
The zebrafish (Danio rerio) embryo has increasingly been used as an alternative model in human and environmental toxicology. Since the cytochrome P450 (CYP) system is of fundamental importance for the understanding and correct interpretation of the outcome of toxicological studies, constitutive and xenobiotic-induced 7-methoxycoumarin-O-demethylase (MCOD), i.e. 'mammalian CYP2-like', activities were monitored in vivo in zebrafish embryos via confocal laser scanning microscopy. In order to elucidate molecular mechanisms underlying the MCOD induction, dose-dependent effects of the prototypical CYP inducers β-naphthoflavone (aryl hydrocarbon receptor (AhR) agonist), rifampicin (pregnane X receptor (PXR) agonist), carbamazepine and phenobarbital (constitutive androstane receptor (CAR) agonists) were analyzed in zebrafish embryos of varying age. Starting from 36 h of age, all embryonic stages of zebrafish could be shown to have constitutive MCOD activity, albeit with spatial variation and at distinct levels. Whereas carbamazepine, phenobarbital and rifampicin had no effect on in vivo MCOD activity in 96 h old zebrafish embryos, the model aryl hydrocarbon receptor agonist β-naphthoflavone significantly induced MCOD activity in 96 h old zebrafish embryos at 46-734 nM, however, without a clear concentration-effect relationship. Induction of MCOD activity by β-naphthoflavone gradually decreased with progression of embryonic development. By in vivo characterization of constitutive and xenobiotic-induced MCOD activity patterns in 36, 60, 84 and 108 h old zebrafish embryos, this decrease could primarily be attributed to an age-related decline in the induction of MCOD activity in the cardiovascular system. Results of this study provide novel insights into the mechanism and extent, by which specific CYP activities in early life-stages of zebrafish can be influenced by exposure to xenobiotics. The study thus lends further support to the view that zebrafish embryos- at least from an age of 36 h - have an elaborate and inducible biotransformation system.
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Affiliation(s)
- Ann-Kathrin Loerracher
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120, Heidelberg, Germany.
| | - Thomas Braunbeck
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120, Heidelberg, Germany
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26
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Šimečková P, Hubatka F, Kotouček J, Turánek Knötigová P, Mašek J, Slavík J, Kováč O, Neča J, Kulich P, Hrebík D, Stráská J, Pěnčíková K, Procházková J, Diviš P, Macaulay S, Mikulík R, Raška M, Machala M, Turánek J. Gadolinium labelled nanoliposomes as the platform for MRI theranostics: in vitro safety study in liver cells and macrophages. Sci Rep 2020; 10:4780. [PMID: 32179785 PMCID: PMC7075985 DOI: 10.1038/s41598-020-60284-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/18/2019] [Indexed: 12/14/2022] Open
Abstract
Gadolinium (Gd)-based contrast agents are extensively used for magnetic resonance imaging (MRI). Liposomes are potential nanocarrier-based biocompatible platforms for development of new generations of MRI diagnostics. Liposomes with Gd-complexes (Gd-lip) co-encapsulated with thrombolytic agents can serve both for imaging and treatment of various pathological states including stroke. In this study, we evaluated nanosafety of Gd-lip containing PE-DTPA chelating Gd+3 prepared by lipid film hydration method. We detected no cytotoxicity of Gd-lip in human liver cells including cancer HepG2, progenitor (non-differentiated) HepaRG, and differentiated HepaRG cells. Furthermore, no potential side effects of Gd-lip were found using a complex system including general biomarkers of toxicity, such as induction of early response genes, oxidative, heat shock and endoplasmic reticulum stress, DNA damage responses, induction of xenobiotic metabolizing enzymes, and changes in sphingolipid metabolism in differentiated HepaRG. Moreover, Gd-lip did not show pro-inflammatory effects, as assessed in an assay based on activation of inflammasome NLRP3 in a model of human macrophages, and release of eicosanoids from HepaRG cells. In conclusion, this in vitro study indicates potential in vivo safety of Gd-lip with respect to hepatotoxicity and immunopathology caused by inflammation.
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Affiliation(s)
| | | | - Jan Kotouček
- Veterinary Research Institute, Brno, Czech Republic
| | | | - Josef Mašek
- Veterinary Research Institute, Brno, Czech Republic
| | - Josef Slavík
- Veterinary Research Institute, Brno, Czech Republic
| | - Ondrej Kováč
- Veterinary Research Institute, Brno, Czech Republic
| | - Jiří Neča
- Veterinary Research Institute, Brno, Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute, Brno, Czech Republic
| | - Dominik Hrebík
- Central European Institute of Technology CEITEC, Structural Virology, Masaryk University, Brno, Czech Republic
| | - Jana Stráská
- Regional Centre of Advanced Technologies and Materials, Palacký University, Olomouc, Czech Republic
| | | | | | - Pavel Diviš
- Faculty of Chemistry, Technical University, Brno, Czech Republic
| | | | - Robert Mikulík
- International Clinical Research Centre, St. Anne's University Hospital Brno, Brno, Czech Republic
- Neurology Department, St. Anne's University Hospital and Masaryk University, Brno, Czech Republic
| | - Milan Raška
- Veterinary Research Institute, Brno, Czech Republic
- Department of Immunology, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
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27
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Cheng K, Zeng X, Wu H, Su W, Fan W, Bai Y, Yao H, Li P. Effects of Naringin on the Activity and mRNA Expression of CYP Isozymes in Rats. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19894180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Naringin (NRG) is a common dietary flavonoid in citrus fruits and has been documented to possess multiple pharmacological activities, including anti-oxidant, anti-inflammatory, and neuroprotective effects. Naringin is frequently consumed in combination with common clinical drugs. To date, the effects of NRG on cytochrome P450 enzymes have not been fully investigated yet. In this study, the activities of hepatic CYP1A2, CYP2D2, CYP2C9, CYP2C19, and CYP2E1 in rats after the continuous oral administration of NRG (50 and 500 mg/kg) were evaluated using cocktail probe-drug method. The concentrations of 5 probe drugs (phenacetin, dextromethorphan, diclofenac sodium, omeprazole, and chlorzoxazone) in rat plasma were simultaneously determined with a validated HPLC-MS/MS (high performance liquid chromatography-tandem mass spectrometry) method and then used to calculate corresponding pharmacokinetic parameters. Compared with the control group, the AUC(0- t), AUC(0-∞), t 1/2, and C max of each probe drug in treatment groups showed no significant differences. Meanwhile, fluorescence quantitative polymerase chain reaction (FQ-PCR) analysis revealed that NRG did not significantly affect the mRNA expressions of genes CYP1a2, CYP2d2, CYP2c6, CYP2c11, and CYP2e1 in rat liver. Based on these results, it could be concluded that NRG showed no significant effects on the activities and mRNA expressions of tested CYP450 in rats.
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Affiliation(s)
- Keling Cheng
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Xuan Zeng
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hao Wu
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Weiwei Su
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Weiyang Fan
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Yang Bai
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Drug Synthesis and Evaluation Center, Guangdong Institute of Applied Biological Resources, Guangzhou, People’s Republic of China
| | - Peibo Li
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
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28
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Dong M, Xu X, Huang Q, Lei H, Xu G, Ma J, Hatzakis E, Wang X, Zhang L. Dose-Dependent Effects of Triclocarban Exposure on Lipid Homeostasis in Rats. Chem Res Toxicol 2019; 32:2320-2328. [DOI: 10.1021/acs.chemrestox.9b00316] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Manyuan Dong
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiaoyi Xu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, P. R. China
| | - Qingxia Huang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hehua Lei
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
| | - Guangyong Xu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
- School of Environmental and Safety Engineering, Changzhou University, Jiangsu, 213164, P. R. China
| | - Jianfeng Ma
- School of Environmental and Safety Engineering, Changzhou University, Jiangsu, 213164, P. R. China
| | - Emmanuel Hatzakis
- Department of Food Science and Technology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xian Wang
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, P. R. China
| | - Limin Zhang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P. R. China
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29
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Bernasconi C, Pelkonen O, Andersson TB, Strickland J, Wilk-Zasadna I, Asturiol D, Cole T, Liska R, Worth A, Müller-Vieira U, Richert L, Chesne C, Coecke S. Validation of in vitro methods for human cytochrome P450 enzyme induction: Outcome of a multi-laboratory study. Toxicol In Vitro 2019; 60:212-228. [PMID: 31158489 PMCID: PMC6718736 DOI: 10.1016/j.tiv.2019.05.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 05/29/2019] [Indexed: 12/12/2022]
Abstract
CYP enzyme induction is a sensitive biomarker for phenotypic metabolic competence of in vitro test systems; it is a key event associated with thyroid disruption, and a biomarker for toxicologically relevant nuclear receptor-mediated pathways. This paper summarises the results of a multi-laboratory validation study of two in vitro methods that assess the potential of chemicals to induce cytochrome P450 (CYP) enzyme activity, in particular CYP1A2, CYP2B6, and CYP3A4. The methods are based on the use of cryopreserved primary human hepatocytes (PHH) and human HepaRG cells. The validation study was coordinated by the European Union Reference Laboratory for Alternatives to Animal Testing of the European Commission's Joint Research Centre and involved a ring trial among six laboratories. The reproducibility was assessed within and between laboratories using a validation set of 13 selected chemicals (known human inducers and non-inducers) tested under blind conditions. The ability of the two methods to predict human CYP induction potential was assessed. Chemical space analysis confirmed that the selected chemicals are broadly representative of a diverse range of chemicals. The two methods were found to be reliable and relevant in vitro tools for the assessment of human CYP induction, with the HepaRG method being better suited for routine testing. Recommendations for the practical application of the two methods are proposed.
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Affiliation(s)
| | - Olavi Pelkonen
- Research Unit of Biomedicine/Pharmacology and Toxicology, Faculty of Medicine, Aapistie 5B, University of Oulu, FIN-90014, Finland; Clinical Research Center, Oulu University Hospital, Finland
| | - Tommy B Andersson
- Drug Metabolism and Pharmacokinetics, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden; Department of Physiology and Pharmacology, Section of Pharmacogenetics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Judy Strickland
- Integrated Laboratory Systems (contractor supporting NICEATM), Research Triangle Park, North, Carolina, 27709, USA
| | | | - David Asturiol
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Thomas Cole
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Roman Liska
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Andrew Worth
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Ursula Müller-Vieira
- Boehringer Ingelheim, Germany. Department of Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, an der Riss, Germany
| | - Lysiane Richert
- KaLy-Cell, 20A, rue du Général Leclerc, 67115 Plobsheim, France(g) Biopredic International, Parc d'activité de la Bretèche Bâtiment A4, 35760 Saint Grégoire, France
| | - Christophe Chesne
- Biopredic International, Parc d'activité de la Bretèche Bâtiment A4, 35760 Saint Grégoire, France
| | - Sandra Coecke
- European Commission, Joint Research Centre (JRC), Ispra, Italy.
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Rekka EA, Kourounakis PN, Pantelidou M. Xenobiotic Metabolising Enzymes: Impact on Pathologic Conditions, Drug Interactions and Drug Design. Curr Top Med Chem 2019; 19:276-291. [DOI: 10.2174/1568026619666190129122727] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/21/2022]
Abstract
Background:
The biotransformation of xenobiotics is a homeostatic defensive response of the
body against bioactive invaders. Xenobiotic metabolizing enzymes, important for the metabolism,
elimination and detoxification of exogenous agents, are found in most tissues and organs and are distinguished
into phase I and phase II enzymes, as well as phase III transporters. The cytochrome P450 superfamily
of enzymes plays a major role in the biotransformation of most xenobiotics as well as in the
metabolism of important endogenous substrates such as steroids and fatty acids. The activity and the
potential toxicity of numerous drugs are strongly influenced by their biotransformation, mainly accomplished
by the cytochrome P450 enzymes, one of the most versatile enzyme systems.
Objective:
In this review, considering the importance of drug metabolising enzymes in health and disease,
some of our previous research results are presented, which, combined with newer findings, may
assist in the elucidation of xenobiotic metabolism and in the development of more efficient drugs.
Conclusion:
Study of drug metabolism is of major importance for the development of drugs and provides
insight into the control of human health. This review is an effort towards this direction and may
find useful applications in related medical interventions or help in the development of more efficient
drugs.
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Affiliation(s)
- Eleni A. Rekka
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotelian University of Thessaloniki, Thessaloniki- 54124, Greece
| | - Panos N. Kourounakis
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotelian University of Thessaloniki, Thessaloniki- 54124, Greece
| | - Maria Pantelidou
- Department of Pharmacy, School of Health Sciences, Frederick University, Nicosia 1036, Cyprus
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31
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Küblbeck J, Honkakoski P. A Reverse Transfection Method for Screening of Nuclear Receptor Activators. Methods Mol Biol 2019; 1966:163-173. [PMID: 31041746 DOI: 10.1007/978-1-4939-9195-2_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Reporter assays are useful to study nuclear receptor activation and for example to evaluate the propensity of novel drug candidates to cause induction of drug-metabolizing cytochrome P450 enzymes. Here, we describe a protocol for a reverse transfection system to study the activation of human nuclear receptors constitutive androstane receptor and pregnane X receptor. The system provides long-term stability and uniformity of DNA-carrier complexes, thus avoiding the inherent variation in conventional transfection methods. Further, the system is easily adaptable for different studies. It offers reproducible and reliable results for early drug development and mechanistic studies related to nuclear receptor activation and resulting changes in gene expression.
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Affiliation(s)
- Jenni Küblbeck
- Faculty of Health Sciences, School of Pharmacy, University of Eastern Finland, Kuopio, Finland.
| | - Paavo Honkakoski
- Faculty of Health Sciences, School of Pharmacy, University of Eastern Finland, Kuopio, Finland
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32
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Heinonen T, Pelkonen O, Tähti H. Toxicology Meets Pharmacodynamics and Pharmacokinetics - New Concepts, Models and In Vitro Approaches and Tools. Basic Clin Pharmacol Toxicol 2018; 123 Suppl 5:3-5. [PMID: 29938893 DOI: 10.1111/bcpt.13080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Tuula Heinonen
- FICAM, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Olavi Pelkonen
- Research Unit of Biomedicine, Pharmacology and Toxicology, Faculty of Medicine, University of Oulu, Oulu, Finland.,Medical Research Center Oulu, University of Oulu, Oulu, Finland
| | - Hanna Tähti
- FICAM, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
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