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Klaren WD, Ring C, Harris MA, Thompson CM, Borghoff S, Sipes NS, Hsieh JH, Auerbach SS, Rager JE. Identifying Attributes That Influence In Vitro-to-In Vivo Concordance by Comparing In Vitro Tox21 Bioactivity Versus In Vivo DrugMatrix Transcriptomic Responses Across 130 Chemicals. Toxicol Sci 2019; 167:157-171. [PMID: 30202884 PMCID: PMC6317427 DOI: 10.1093/toxsci/kfy220] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Recent efforts aimed at integrating in vitro high-throughput screening (HTS) data into chemical toxicity assessments are necessitating increased understanding of concordance between chemical-induced responses observed in vitro versus in vivo. This investigation set out to (1) measure concordance between in vitro HTS data and transcriptomic responses observed in vivo, focusing on the liver, and (2) identify attributes that can influence concordance. Signal response profiles from 130 substances were compared between in vitro data produced through Tox21 and liver transcriptomic data through DrugMatrix, collected from rats exposed to a chemical for ≤5 days. A global in vitro-to-in vivo comparative analysis based on pathway-level responses resulted in an overall average percent agreement of 79%, ranging on a per-chemical basis between 41% and 100%. Whereas concordance amongst inactive chemicals was high (89%), concordance amongst chemicals showing in vitro activity was only 13%, suggesting that follow-up in vivo and/or orthogonal in vitro assays would improve interpretations of in vitro activity. Attributes identified to influence concordance included experimental design attributes (eg, cell type), target pathways, and physicochemical properties (eg, logP). The attribute that most consistently increased concordance was dose applicability, evaluated by filtering for experimental doses administered to rats that were within 10-fold of those related to likely bioactivity, derived using Tox21 data and high-throughput toxicokinetic modeling. Together, findings suggest that in vitro screening approaches to predict in vivo toxicity are viable particularly when certain attributes are considered, including whether activity versus inactivity is observed, experimental design, chemical properties, and dose applicability.
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Affiliation(s)
- William D Klaren
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas 77840
| | | | | | | | | | - Nisha S Sipes
- National Toxicology Program, National Institutes of Health, Research Triangle Park, North Carolina 27709and
| | - Jui-Hua Hsieh
- Kelly Government Solutions, Durham, North Carolina 27709
| | - Scott S Auerbach
- National Toxicology Program, National Institutes of Health, Research Triangle Park, North Carolina 27709and
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Juricek L, Bui LC, Busi F, Pierre S, Guyot E, Lamouri A, Dupret JM, Barouki R, Coumoul X, Rodrigues-Lima F. Activation of the aryl hydrocarbon receptor by carcinogenic aromatic amines and modulatory effects of their N-acetylated metabolites. Arch Toxicol 2014; 89:2403-12. [PMID: 25224404 DOI: 10.1007/s00204-014-1367-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 09/04/2014] [Indexed: 12/02/2022]
Abstract
Aromatic amines (AAs) are an important class of chemicals which account for 12 % of known carcinogens. The biological effects of AAs depend mainly on their biotransformation into reactive metabolites or into N-acetylated metabolites which are generally considered as less toxic. Although the activation of the aryl hydrocarbon receptor (AhR) pathway by certain carcinogenic AAs has been reported, the effects of their N-acetylated metabolites on the AhR have not been addressed. Here, we investigated whether carcinogenic AAs and their N-acetylated metabolites may activate/modulate the AhR pathway in the absence and/or the presence of a bona fide AhR ligand (benzo[a]pyrene/B(a)P]. In agreement with previous studies, we found that certain AAs activated the AhR in human liver and lung cells as assessed by an increase in cytochrome P450 1A1 (CYP1A1) expression and activity. Altogether, we report for the first time that these properties can be modulated by the N-acetylation status of the AA. Whereas 2-naphthylamine significantly activated the AhR and induced CYP1A1 expression, its N-acetylated metabolite was less efficient. In contrast, the N-acetylated metabolite of 2-aminofluorene was able to significantly activate AhR, whereas the parent AA, 2-aminofluorene, did not. In the presence of B(a)P, activation of AhR or antagonist effects were observed depending on the AA or its N-acetylated metabolite. Activation and/or modulation of the AhR pathway by AAs and their N-acetylated metabolites may represent a novel mechanism contributing to the toxicological effects of AAs. More broadly, our data suggest biological interactions between AAs and other classes of xenobiotics through the AhR pathway.
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Affiliation(s)
- Ludmila Juricek
- INSERM UMR-S 1124, Toxicologie Pharmacologie et Signalisation cellulaire, 45 rue des Saints-Pères, 75006, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
| | - Linh-Chi Bui
- CNRS EAC 4413, Biologie Fonctionnelle et Adaptative, Université Paris Diderot, Sorbonne Paris Cité, 4 rue Marie-Andrée Lagroua Weill Hallé, 75213, Paris, France
| | - Florent Busi
- CNRS EAC 4413, Biologie Fonctionnelle et Adaptative, Université Paris Diderot, Sorbonne Paris Cité, 4 rue Marie-Andrée Lagroua Weill Hallé, 75213, Paris, France
| | - Stéphane Pierre
- INSERM UMR-S 1124, Toxicologie Pharmacologie et Signalisation cellulaire, 45 rue des Saints-Pères, 75006, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
| | - Erwan Guyot
- INSERM UMR-S 1124, Toxicologie Pharmacologie et Signalisation cellulaire, 45 rue des Saints-Pères, 75006, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
| | - Aazdine Lamouri
- Laboratoire ITODYS, CNRS UMR 7086, Université Paris Diderot, Sorbonne Paris Cité, 15, rue Jean-Antoine de Baïf, 75013, Paris, France
| | - Jean-Marie Dupret
- CNRS EAC 4413, Biologie Fonctionnelle et Adaptative, Université Paris Diderot, Sorbonne Paris Cité, 4 rue Marie-Andrée Lagroua Weill Hallé, 75213, Paris, France
| | - Robert Barouki
- INSERM UMR-S 1124, Toxicologie Pharmacologie et Signalisation cellulaire, 45 rue des Saints-Pères, 75006, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
- Service de biochimie métabolique, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75743, Paris, France
| | - Xavier Coumoul
- INSERM UMR-S 1124, Toxicologie Pharmacologie et Signalisation cellulaire, 45 rue des Saints-Pères, 75006, Paris, France.
- Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France.
| | - Fernando Rodrigues-Lima
- CNRS EAC 4413, Biologie Fonctionnelle et Adaptative, Université Paris Diderot, Sorbonne Paris Cité, 4 rue Marie-Andrée Lagroua Weill Hallé, 75213, Paris, France.
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Neumann HG, Hammerl R, Hillesheim W, Wildschütte M. Role of genotoxic and nongenotoxic effects in multistage carcinogenicity of aromatic amines. ENVIRONMENTAL HEALTH PERSPECTIVES 1990; 88:207-211. [PMID: 2272316 PMCID: PMC1568000 DOI: 10.1289/ehp.9088207] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
It has been demonstrated in several model systems that tumors arise in a multistage process. Carcinogenic aromatic amines are complete carcinogens, which usually produce tumors in typical target tissues without any additional treatment. The tissue specificity, however, cannot readily be explained by genotoxic effects, and the role of secondary effects is not well understood. Promotional pressure on initiated cells can be produced by endogenous factors but also by the chemical itself. Comparison of the effects on rat liver of 2-acetylaminofluorene (AAF) and trans-4-acetylaminostilbene (AAS) provides some evidence that initiating and promoting properties of these chemicals can be separated. AAS is a strong initiator in rat liver but seems to lack promoting activity; AAF is a less efficient initiator but has tumor promoting properties. The results obtained so far indicate that promoting pressure is not produced by the acute, cytotoxic effects of AAF. It is therefore concluded that nongenotoxic, possibly receptor-mediated effects are involved.
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Affiliation(s)
- H G Neumann
- Institute of Pharmacology and Toxicology, University of Würzburg, Federal Republic of Germany
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