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Chatterjee P, Karn R, Emerson. I A, Banerjee S. Deciphering the Chemotherapeutic Role of the Aryl Hydrocarbon Receptor Antagonist Resveratrol against the High-Penetrance Genes of Triple-Negative Breast Cancer. ACS OMEGA 2024; 9:30350-30363. [PMID: 39035954 PMCID: PMC11256332 DOI: 10.1021/acsomega.4c01317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 07/23/2024]
Abstract
In addition to several other malignancies, the ligand-activated aryl hydrocarbon receptor (AhR) signaling pathway has been found to enhance the risk of triple-negative breast cancer (TNBC). Many natural compounds of pharmaceutical importance are identified as antagonistic exogenous ligands of AhR. The expressional lack of hormone receptors coupled with adverse prognosis leads to the absence of molecular-targeted therapy in TNBC. Hence, discovering low-cost therapeutic alternatives involving the identification of effective biomarkers is an urgent necessity. This study investigates the binding mechanism of resveratrol, a dietary exogenous AhR ligand against the high-penetrance genes in TNBC, viz., PALB2, TP53, PTEN, STK11, BRCA1, and BRCA2. Post-pharmacokinetic evaluation, molecular docking revealed the binding energy scores of resveratrol against the six TNBC high-penetrance receptors. The results obtained from docking were confirmed by molecular dynamics simulation including principal component analysis, calculation of total interaction energy, and free-energy landscape computation. PALB2 emerged as a promising therapeutic receptor of resveratrol. Furthermore, the PALB2-resveratrol binding dynamics were evaluated against olaparib, an FDA-approved standardized TNBC inhibitor. Our study reveals comparatively better chemistry of PALB2-resveratrol than PALB2-olaparib. Considering the current surge in the discovery of precision medicine in biomarker-based cancer therapeutics, this study proposes PALB2-resveratrol as a unique drug-receptor combination thus awaiting validation through in vitro studies.
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Affiliation(s)
| | | | - Arnold Emerson. I
- School of BioSciences and
Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Satarupa Banerjee
- School of BioSciences and
Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
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2
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Godderis L, De Ryck E, Baeyens W, Geerts L, Jacobs G, Maesen P, Mertens B, Schroyen G, Van Belleghem F, Vanoirbeek J, Van Larebeke N. Towards a more effective REACH legislation in protecting human health. Toxicol Sci 2024; 199:194-202. [PMID: 38419586 DOI: 10.1093/toxsci/kfae025] [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] [Indexed: 03/02/2024] Open
Abstract
There is growing evidence indicating the substantial contribution of man-made products to an increase in the risk of diseases of civilization. In this article, the Belgian Scientific Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) Committee gives a critical view on the working of REACH. The current regulatory framework needs to further evolve taking into account data generated using modern science and technology. There is a need for improved assessment process not only before but also after entering the market. Objectivity, transparency, and the follow-up after market access can be optimized. Additionally, no guidance documents exist for regulation of mixture effects. Further, the lengthiness before regulatory action is a big concern. Decision-making often takes several years leading to uncertainties for both producers and end users. A first proposed improvement is the implementation of independent toxicity testing, to assure objectivity, transparency, and check and improve compliance. A "no data, no market" principle could prevent access of hazardous chemicals to the market. Additionally, the introduction of novel testing could improve information on endpoints such as endocrine disrupting abilities, neurotoxicity, and immunotoxicity. An adapted regulatory framework that integrates data from different sources and comparing the outputs with estimates of exposure is required. Fast toxicology battery testing and toxicokinetic testing could improve speed of decision-making. Hereby, several improvements have been proposed that could improve the current REACH legislation.
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Affiliation(s)
- Lode Godderis
- Department Public Health and Primary Care, Centre for Environment and Health, Catholic University Leuven, 3000 Leuven, Belgium
- External Service for Prevention and Protection at Work, IDEWE, 3001 Heverlee, Belgium
| | - Evi De Ryck
- Department Public Health and Primary Care, Centre for Environment and Health, Catholic University Leuven, 3000 Leuven, Belgium
| | - Willy Baeyens
- Analytical, Environmental and Geo-Chemistry, VUB, 1050 Brussels, Belgium
| | - Lieve Geerts
- Flemish Institute for Technological Research, VITO, 2400 Mol, Belgium
| | - Griet Jacobs
- Flemish Institute for Technological Research, VITO, 2400 Mol, Belgium
| | - Phillippe Maesen
- Faculté de Gembloux Agro-Bio Tech, Uliège, 5030 Gembloux, Belgium
| | - Birgit Mertens
- Department of Chemical and Physical Health Risks, Sciensano, 1050 Brussels, Belgium
| | - Guy Schroyen
- Institut Scientifique de Service Public, ISSeP, 4000 Liège, Belgium
| | - Frank Van Belleghem
- Department of Environmental Sciences, Faculty of Science, Open Universiteit, 6419 Heerlen, The Netherlands
- Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Jeroen Vanoirbeek
- Department Public Health and Primary Care, Centre for Environment and Health, Catholic University Leuven, 3000 Leuven, Belgium
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Murillo-González FE, García-Aguilar R, Limón-Pacheco J, Cabañas-Cortés MA, Elizondo G. 2,3,7,8-Tetrachlorodibenzo-p-dioxin and kynurenine induce Parkin expression in neuroblastoma cells through different signaling pathways mediated by the aryl hydrocarbon receptor. Toxicol Lett 2024; 394:114-127. [PMID: 38437907 DOI: 10.1016/j.toxlet.2024.02.015] [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: 10/02/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024]
Abstract
Parkin regulates protein degradation and mitophagy in dopaminergic neurons. Deficiencies in Parkin expression or function lead to cellular stress, cell degeneration, and the death of dopaminergic neurons, which promotes Parkinson's disease. In contrast, Parkin overexpression promotes neuronal survival. Therefore, the mechanisms of Parkin upregulation are crucial to understand. We describe here the molecular mechanism of AHR-mediated Parkin regulation in human SH-SY5Y neuroblastoma cells. Specifically, we report that the human Parkin gene (PRKN) is transcriptionally upregulated by the aryl hydrocarbon receptor (AHR) through two different selective ligand-dependent pathways. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a stress-inducing AHR ligand, indirectly promotes PRKN transcription by inducing ATF4 expression via TCDD-mediated endoplasmic reticulum (ER) stress. In contrast, kynurenine, a nontoxic AHR agonist, induces PRKN transcription by promoting AHR binding to the PRKN promoter without activating ER stress. Our results demonstrate that AHR activation may be a potential pharmacological pathway to induce human Parkin, but such a strategy must carefully consider the choice of AHR ligand to avoid neurotoxic side effects.
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Affiliation(s)
| | - Rosario García-Aguilar
- Departamento de Toxicología, CINVESTAV-IPN, Av. IPN 2508, Ciudad de México C.P. 07360, Mexico
| | - Jorge Limón-Pacheco
- Departamento de Biología Celular, CINVESTAV-IPN, Av. IPN 2508, Ciudad de México C.P. 07360, Mexico
| | | | - Guillermo Elizondo
- Departamento de Biología Celular, CINVESTAV-IPN, Av. IPN 2508, Ciudad de México C.P. 07360, Mexico.
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4
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Bonati L, Motta S, Callea L. The AhR Signaling Mechanism: A Structural Point of View. J Mol Biol 2024; 436:168296. [PMID: 37797832 DOI: 10.1016/j.jmb.2023.168296] [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: 07/28/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
The Aryl hydrocarbon Receptor (AhR) is a well-known sensor of xenobiotics; moreover, it is considered a promising drug target as it is involved in the regulation of many patho-physiological processes. For these reasons the study of its ligand-activated transcription mechanism has stimulated several studies for over twenty years. In this review we highlight the key role of molecular structural information in understanding the different steps of the signaling mechanism. The architecture of the AhR cytosolic complex, encompassing the hsp90 chaperone protein and the XAP2 and p23 co-chaperones, has become available in the last year thanks to Cryo-EM experiments. The structure of the AhR ligand-binding (PAS-B) domain has remained elusive for a long time; it has been predicted by homology modelling, based on known PAS systems, and its ligand-bound forms were modelled through ligand molecular docking. Although very recently some structural information on this domain has become available, considerable efforts are still needed to determine the binding geometries of the AhR key ligands by experimental high-resolution studies. On the other hand, the dimeric structure of AhR with the ARNT protein, bound to the specific DNA responsive element, was partially determined by X-ray crystallography and it was completed by homology modelling. On the whole the current structural knowledge of the main protein complexes that form over the AhR mechanism opens the way to confirm and further investigate the main steps of the proposed ligand-activated transcription mechanism of the AhR.
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Affiliation(s)
- Laura Bonati
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy.
| | - Stefano Motta
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy.
| | - Lara Callea
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy.
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5
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Chatterjee P, Banerjee S. Unveiling the mechanistic role of the Aryl hydrocarbon receptor in environmentally induced Breast cancer. Biochem Pharmacol 2023; 218:115866. [PMID: 37863327 DOI: 10.1016/j.bcp.2023.115866] [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: 07/28/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a crucial cytosolic evolutionary conserved ligand-activated transcription factor and a pleiotropic signal transducer. The biosensor activity of the AhR is attributed to the promiscuity of its ligand-binding domain. Evidence suggests exposure to environmental toxins such as polycyclic aromatic hydrocarbons, polychlorinated biphenyls and halogenated aromatic hydrocarbons activates the AhR signaling pathway. The constitutive activation of the receptor signaling system leads to multiple health adversities and enhances the risk of several cancers, including breast cancer (BC). This review evaluates several mechanisms that integrate the tumor-inducing property of such environmental contaminants with the AhR pathway assisting in BC tumorigenesis, progress and metastasis. Intriguingly, immune evasion is identified as a prominent hallmark in BC. Several emerging pieces of evidence have identified AhR as a potent immunosuppressive effector in several cancers. Through AhR signaling pathways, some tumors can avoid immune detection. Thus the relevance of AhR in the immunomodulation of breast tumors and its putative mode of action in the breast tumor microenvironment are discussed in this review. Additionally, the work also explores BC stemness and its associated inflammation in response to several environmental cues. The review elucidates the context-dependent ambiguous behavior of AhR either as an oncogene or a tumor suppressor with respect to its ligand. Conclusively, this holistic piece of literature attempts to potentiate AhR as a promising pharmacological target in BC and updates on the therapeutic manipulation of its various exogenous and endogenous ligands.
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Affiliation(s)
- Prarthana Chatterjee
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore- 632014, Tamil Nadu, India
| | - Satarupa Banerjee
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore- 632014, Tamil Nadu, India.
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Holme JA, Vondráček J, Machala M, Lagadic-Gossmann D, Vogel CFA, Le Ferrec E, Sparfel L, Øvrevik J. Lung cancer associated with combustion particles and fine particulate matter (PM 2.5) - The roles of polycyclic aromatic hydrocarbons (PAHs) and the aryl hydrocarbon receptor (AhR). Biochem Pharmacol 2023; 216:115801. [PMID: 37696458 PMCID: PMC10543654 DOI: 10.1016/j.bcp.2023.115801] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
Air pollution is the leading cause of lung cancer after tobacco smoking, contributing to 20% of all lung cancer deaths. Increased risk associated with living near trafficked roads, occupational exposure to diesel exhaust, indoor coal combustion and cigarette smoking, suggest that combustion components in ambient fine particulate matter (PM2.5), such as polycyclic aromatic hydrocarbons (PAHs), may be central drivers of lung cancer. Activation of the aryl hydrocarbon receptor (AhR) induces expression of xenobiotic-metabolizing enzymes (XMEs) and increase PAH metabolism, formation of reactive metabolites, oxidative stress, DNA damage and mutagenesis. Lung cancer tissues from smokers and workers exposed to high combustion PM levels contain mutagenic signatures derived from PAHs. However, recent findings suggest that ambient air PM2.5 exposure primarily induces lung cancer development through tumor promotion of cells harboring naturally acquired oncogenic mutations, thus lacking typical PAH-induced mutations. On this background, we discuss the role of AhR and PAHs in lung cancer development caused by air pollution focusing on the tumor promoting properties including metabolism, immune system, cell proliferation and survival, tumor microenvironment, cell-to-cell communication, tumor growth and metastasis. We suggest that the dichotomy in lung cancer patterns observed between smoking and outdoor air PM2.5 represent the two ends of a dose-response continuum of combustion PM exposure, where tumor promotion in the peripheral lung appears to be the driving factor at the relatively low-dose exposures from ambient air PM2.5, whereas genotoxicity in the central airways becomes increasingly more important at the higher combustion PM levels encountered through smoking and occupational exposure.
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Affiliation(s)
- Jørn A Holme
- Department of Air Quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box PO Box 222 Skøyen, 0213 Oslo, Norway
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, 61265 Brno, Czech Republic
| | - Miroslav Machala
- Department of Pharmacology and Toxicology, Veterinary Research Institute, 62100 Brno, Czech Republic
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Christoph F A Vogel
- Department of Environmental Toxicology and Center for Health and the Environment, University of California, Davis, CA 95616, USA
| | - Eric Le Ferrec
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Lydie Sparfel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Johan Øvrevik
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, PO Box 1066 Blindern, 0316 Oslo, Norway; Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222 Skøyen, 0213 Oslo, Norway.
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7
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Sorg O, Saurat JH. Development of skin diseases following systemic exposure: example of dioxins. FRONTIERS IN TOXICOLOGY 2023; 5:1243192. [PMID: 37711212 PMCID: PMC10498119 DOI: 10.3389/ftox.2023.1243192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/17/2023] [Indexed: 09/16/2023] Open
Abstract
Most skin manifestations of exposure to toxic compounds are a consequence of a direct contact with the toxicants. However, some toxicants may reach the skin following systemic exposure, and promote skin diseases. Good examples of such chemicals are dioxin-like compounds. This family of lipophilic molecules comprises polychlorinated (dibenzodioxins, dibenzofurans and biphenyls). The most potent member of this family is 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Following oral ingestion of as little as a few mg TCDD, skin lesions appear in a couple of weeks, starting from the face and diffuse then on the trunk and limbs. This syndrome was historically called "chloracne" and the skin lesions have now been shown to be skin hamartoma induced by TCDD. Sweat glands release their lipid content on the surface of the skin by a holocrine secretion, and so any lost sebocyte should be transmitted to progenitor cells to differentiate and migrate to the sebaceous gland to replace the lost sebocyte. TCDD acts by inducing a switch in this signal and skin hamartoma develop in place of new sebocytes.
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Affiliation(s)
- Olivier Sorg
- Clinical Pharmacology and Toxicology, University of Geneva, Geneva, Switzerland
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8
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Barouki R, Samson M, Blanc EB, Colombo M, Zucman-Rossi J, Lazaridis KN, Miller GW, Coumoul X. The exposome and liver disease - how environmental factors affect liver health. J Hepatol 2023; 79:492-505. [PMID: 36889360 PMCID: PMC10448911 DOI: 10.1016/j.jhep.2023.02.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 03/10/2023]
Abstract
Since the initial development of the exposome concept, much effort has been devoted to the characterisation of the exposome through analytical, epidemiological, and toxicological/mechanistic studies. There is now an urgent need to link the exposome to human diseases and to include exposomics in the characterisation of environment-linked pathologies together with genomics and other omics. Liver diseases are particularly well suited for such studies since major functions of the liver include the detection, detoxification, and elimination of xenobiotics, as well as inflammatory responses. It is well known that several liver diseases are associated with i) addictive behaviours such as alcohol consumption, smoking, and to a certain extent dietary imbalance and obesity, ii) viral and parasitic infections, and iii) exposure to toxins and occupational chemicals. Recent studies indicate that environmental exposures are also significantly associated with liver diseases, and these include air pollution (particulate matter and volatile chemicals), contaminants such as polyaromatic hydrocarbons, bisphenol A and per-and poly-fluorinated substances, and physical stressors such as radiation. Furthermore, microbial metabolites and the "gut-liver" axis play a major role in liver diseases. Exposomics is poised to play a major role in the field of liver pathology. Methodological advances such as the exposomics-metabolomics framework, the determination of risk factors' genomic and epigenomic signatures, and cross-species biological pathway analysis should further delineate the impact of the exposome on the liver, opening the way for improved prevention, as well as the identification of new biomarkers of exposure and effects, and additional therapeutic targets.
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Affiliation(s)
| | - Michel Samson
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | | | - Massimo Colombo
- San Raffaele Hospital, Liver Center, Via Olgettina 60, 20132, Milan, Italy
| | - Jessica Zucman-Rossi
- Centre de Recherche des Cordeliers, Université Paris Cité, Sorbonne Université, Inserm, AP-HP, Hôpital Européen Georges Pompidou, Institut du Cancer Paris CARPEM, F-75006, Paris, France
| | | | - Gary W Miller
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, 10032, USA
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Sheu ML, Pan LY, Yang CN, Sheehan J, Pan LY, You WC, Wang CC, Pan HC. Thrombin-Induced Microglia Activation Modulated through Aryl Hydrocarbon Receptors. Int J Mol Sci 2023; 24:11416. [PMID: 37511175 PMCID: PMC10380349 DOI: 10.3390/ijms241411416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Thrombin is a multifunctional serine protein which is closely related to neurodegenerative disorders. The Aryl hydrocarbon receptor (AhR) is well expressed in microglia cells involving inflammatory disorders of the brain. However, it remains unclear as to how modulation of AhR expression by thrombin is related to the development of neurodegeneration disorders. In this study, we investigated the role of AhR in the development of thrombin-induced neurodegenerative processes, especially those concerning microglia. The primary culture of either wild type or AhR deleted microglia, as well as BV-2 cell lines, was used for an in vitro study. Hippocampal slice culture and animals with either wild type or with AhR deleted were used for the ex vivo and in vivo studies. Simulations of ligand protein docking showed a strong integration between the thrombin and AhR. In thrombin-triggered microglia cells, deleting AhR escalated both the NO release and iNOS expression. Such effects were abolished by the administration of the AhR agonist. In thrombin-activated microglia cells, downregulating AhR increased the following: vascular permeability, pro-inflammatory genetic expression, MMP-9 activity, and the ratio of M1/M2 phenotype. In the in vivo study, thrombin induced the activation of microglia and their volume, thereby contributing to the deterioration of neurobehavior. Deleting AhR furthermore aggravated the response in terms of impaired neurobehavior, increasing brain edema, aggregating microglia, and increasing neuronal death. In conclusion, thrombin caused the activation of microglia through increased vessel permeability, expression of inflammatory response, and phenotype of M1 microglia, as well the MMP activity. Deleting AhR augmented the above detrimental effects. These findings indicate that the modulation of AhR is essential for the regulation of thrombin-induced brain damages and that the AhR agonist may harbor the potentially therapeutic effect in thrombin-induced neurodegenerative disorder.
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Affiliation(s)
- Meei-Ling Sheu
- Institute of Biomedical Sciences, National Chung-Hsing University, Taichung 40227, Taiwan;
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 40210, Taiwan
- Ph.D. Program in Translational Medicine, Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Liang-Yi Pan
- Faculty of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Cheng-Ning Yang
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei 106319, Taiwan;
| | - Jason Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, VA 22904, USA;
| | - Liang-Yu Pan
- Faculty of Medicine, Poznan University of Medical Sciences, 61-701 Poznań, Poland;
| | - Weir-Chiang You
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung 40210, Taiwan;
| | - Chien-Chia Wang
- Department of Life Sciences, National Central University, Taoyuan 32001, Taiwan;
| | - Hung-Chuan Pan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 40210, Taiwan
- Ph.D. Program in Translational Medicine, Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- Department of Neurosurgery, Taichung Veterans General Hospital, Taichung 40210, Taiwan
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10
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Bruno L, Evariste L, Houdeau E. Dysregulation along the gut microbiota-immune system axis after oral exposure to titanium dioxide nanoparticles: A possible environmental factor promoting obesity-related metabolic disorders. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121795. [PMID: 37187281 DOI: 10.1016/j.envpol.2023.121795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/24/2023] [Accepted: 05/07/2023] [Indexed: 05/17/2023]
Abstract
Food additives are one major hallmark of ultra-processed food in the Western-diet, a food habit often associated with metabolic disorders. Among these additives, the whitener and opacifying agent titanium dioxide (TiO2) raises public health issues due to the ability of TiO2 nanoparticles (NPs) to cross biological barriers and accumulate in different systemic organs like spleen, liver and pancreas. However before their systemic passage, the biocidal properties of TiO2 NPs may alter the composition and activity of the gut microbiota, which play a crucial role for the development and maintenance of immune functions. Once absorbed, TiO2 NPs may further interact with immune intestinal cells involved in gut microbiota regulation. Since obesity-related metabolic diseases such as diabetes are associated with alterations in the microbiota-immune system axis, this raises questions about the possible involvement of long-term exposure to food-grade TiO2 in the development or worsening of these diseases. The current purpose is to review the dysregulations along the gut microbiota-immune system axis after oral TiO2 exposure compared to those reported in obese or diabetic patients, and to highlight potential mechanisms by which foodborne TiO2 NPs may increase the susceptibility to develop obesity-related metabolic disorders.
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Affiliation(s)
- Lamas Bruno
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
| | - Lauris Evariste
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Eric Houdeau
- Toxalim (Research Centre in Food Toxicology), Team Endocrinology and Toxicology of Intestinal Barrier, Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
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11
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Grishanova AY, Klyushova LS, Perepechaeva ML. AhR and Wnt/β-Catenin Signaling Pathways and Their Interplay. Curr Issues Mol Biol 2023; 45:3848-3876. [PMID: 37232717 DOI: 10.3390/cimb45050248] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/27/2023] Open
Abstract
As evolutionarily conserved signaling cascades, AhR and Wnt signaling pathways play a critical role in the control over numerous vital embryonic and somatic processes. AhR performs many endogenous functions by integrating its signaling pathway into organ homeostasis and into the maintenance of crucial cellular functions and biological processes. The Wnt signaling pathway regulates cell proliferation, differentiation, and many other phenomena, and this regulation is important for embryonic development and the dynamic balance of adult tissues. AhR and Wnt are the main signaling pathways participating in the control of cell fate and function. They occupy a central position in a variety of processes linked with development and various pathological conditions. Given the importance of these two signaling cascades, it would be interesting to elucidate the biological implications of their interaction. Functional connections between AhR and Wnt signals take place in cases of crosstalk or interplay, about which quite a lot of information has been accumulated in recent years. This review is focused on recent studies about the mutual interactions of key mediators of AhR and Wnt/β-catenin signaling pathways and on the assessment of the complexity of the crosstalk between the AhR signaling cascade and the canonical Wnt pathway.
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Affiliation(s)
- Alevtina Y Grishanova
- Institute of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, Novosibirsk 630117, Russia
| | - Lyubov S Klyushova
- Institute of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, Novosibirsk 630117, Russia
| | - Maria L Perepechaeva
- Institute of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, Novosibirsk 630117, Russia
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12
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Shen C, Tang C, Zhu K, He C, Yang C, Zuo Z. Toxicity and ecological risk assessment for two AhR agonistic pesticides mepanipyrim and cyprodinil and their metabolites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:58944-58955. [PMID: 37002518 DOI: 10.1007/s11356-023-26735-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 03/27/2023] [Indexed: 05/10/2023]
Abstract
Mepanipyrim and cyprodinil are widely used to control and/or prevent fungal diseases in fruit culture. They are frequently detected in the aquatic environment and some food commodities. Different from TCDD, mepanipyrim and cyprodinil are more easily metabolised in the environments. However, the risk of their metabolites to the ecological environment is unclear and needs to be further confirmed. In this study, we investigated the temporal pattern of mepanipyrim- and cyprodinil-induced CYP1A and AhR2 expression and EROD enzyme activity at different time frames during zebrafish embryonic and larval development. Then, we assessed the ecological risk of mepanipyrim, cyprodinil, and their metabolites to aquatic organisms. Our results showed that mepanipyrim and cyprodinil exposure could increase the expression level of cyp1a and ahr2 genes and EROD activity by a dynamic pattern in different developmental stages of zebrafish. Besides, their several metabolites showed strong AhR agonistic activity. Importantly, these metabolites could cause potential ecological risks to aquatic organisms and should be paid more attention to. Our results would provide an important reference value for environmental pollution control and the use management of mepanipyrim and cyprodinil.
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Affiliation(s)
- Chao Shen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Chen Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Kongyang Zhu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Chunyan Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China.
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, Fujian, China.
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13
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Hu J, Ding Y, Liu W, Liu S. When AHR signaling pathways meet viral infections. Cell Commun Signal 2023; 21:42. [PMID: 36829212 PMCID: PMC9951170 DOI: 10.1186/s12964-023-01058-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 01/27/2023] [Indexed: 02/26/2023] Open
Abstract
Aryl hydrocarbon receptor (AHR) is a ligand-dependent transcriptional factor widely expressed among immune, epithelial, endothelial and stromal cells in barrier tissues. It can be activated by small molecules provided by pollutants, microorganisms, food, and metabolism. It has been demonstrated that AHR plays an important role in modulating the response to many microbial pathogens, and the abnormal expression of AHR signaling pathways may disrupt endocrine, cause immunotoxicity, and even lead to the occurrence of cancer. Most humans are infected with at least one known human cancer virus. While the initial infection with these viruses does not cause major disease, the metabolic activity of infected cells changes, thus affecting the activation of oncogenic signaling pathways. In the past few years, lots of studies have shown that viral infections can affect disease progression by regulating the transmission of multiple signaling pathways. This review aims to discuss the potential effects of virus infections on AHR signaling pathways so that we may find a new strategy to minimize the adverse effects of the AHR pathway on diseases. Video Abstract.
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Affiliation(s)
- Jieke Hu
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266555, China.,Department of Pathogenic Biology, Qingdao University Medical College, 308 Ningxia Road, Qingdao, 266071, China
| | - Yuan Ding
- Department of Special Examination, Qingdao Women & Children Hospital, Qingdao, 266035, China
| | - Wen Liu
- Department of Pathogenic Biology, Qingdao University Medical College, 308 Ningxia Road, Qingdao, 266071, China.
| | - Shuzhen Liu
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266555, China.
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14
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Silva-Parra J, Sandu C, Felder-Schmittbuhl MP, Hernández-Kelly LC, Ortega A. Aryl Hydrocarbon Receptor in Glia Cells: A Plausible Glutamatergic Neurotransmission Orchestrator. Neurotox Res 2023; 41:103-117. [PMID: 36607593 DOI: 10.1007/s12640-022-00623-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/23/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023]
Abstract
Glutamate is the major excitatory amino acid in the vertebrate brain. Glutamatergic signaling is involved in most of the central nervous system functions. Its main components, namely receptors, ion channels, and transporters, are tightly regulated at the transcriptional, translational, and post-translational levels through a diverse array of extracellular signals, such as food, light, and neuroactive molecules. An exquisite and well-coordinated glial/neuronal bidirectional communication is required for proper excitatory amino acid signal transactions. Biochemical shuttles such as the glutamate/glutamine and the astrocyte-neuronal lactate represent the fundamental involvement of glial cells in glutamatergic transmission. In fact, the disruption of any of these coordinated biochemical intercellular cascades leads to an excitotoxic insult that underlies some aspects of most of the neurodegenerative diseases characterized thus far. In this contribution, we provide a comprehensive summary of the involvement of the Aryl hydrocarbon receptor, a ligand-dependent transcription factor in the gene expression regulation of glial glutamate transporters. These receptors might serve as potential targets for the development of novel strategies for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Janisse Silva-Parra
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
| | - Cristina Sandu
- Centre National de la Recherche Scientifique, Institut des Neurosciences Cellulaires et Intégratives, Université de Strasbourg, Strasbourg, France
| | - Marie-Paule Felder-Schmittbuhl
- Centre National de la Recherche Scientifique, Institut des Neurosciences Cellulaires et Intégratives, Université de Strasbourg, Strasbourg, France
| | - Luisa C Hernández-Kelly
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México
| | - Arturo Ortega
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07360, CDMX, México.
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15
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Abudahab S, Price ET, Dozmorov MG, Deshpande LS, McClay JL. The Aryl Hydrocarbon Receptor, Epigenetics and the Aging Process. J Nutr Health Aging 2023; 27:291-300. [PMID: 37170437 PMCID: PMC10947811 DOI: 10.1007/s12603-023-1908-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor, classically associated with the regulation of xenobiotic metabolism in response to environmental toxins. In recent years, transgenic rodent models have implicated AhR in aging and longevity. Moreover, several AhR ligands, such as resveratrol and quercetin, are compounds proven to extend the lifespan of model organisms. In this paper, we first review AhR biology with a focus on aging and highlight several AhR ligands with potential anti-aging properties. We outline how AhR-driven expression of xenobiotic metabolism genes into old age may be a key mechanism through which moderate induction of AhR elicits positive benefits on longevity and healthspan. Furthermore, via integration of publicly available datasets, we show that liver-specific AhR target genes are enriched among genes subject to epigenetic aging. Changes to epigenetic states can profoundly affect transcription factor binding and are a hallmark of the aging process. We suggest that the interplay between AhR and epigenetic aging should be the subject of future research and outline several key gaps in the current literature. Finally, we recommend that a broad range of non-toxic AhR ligands should be investigated for their potential to promote healthspan and longevity.
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Affiliation(s)
- S Abudahab
- Sara Abudahab, Smith Building, 410 North 12th Street, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298-0533, USA.
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16
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Therachiyil L, Hussein OJ, Uddin S, Korashy HM. Regulation of the aryl hydrocarbon receptor in cancer and cancer stem cells of gynecological malignancies: An update on signaling pathways. Semin Cancer Biol 2022; 86:1186-1202. [PMID: 36252938 DOI: 10.1016/j.semcancer.2022.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/04/2022] [Accepted: 10/12/2022] [Indexed: 01/27/2023]
Abstract
Gynecological malignancies are a female type of cancers that affects the reproductive system. Cancer metastasis or recurrence mediated by cellular invasiveness occurs at advanced stages of cancer progression. Cancer Stem Cells (CSCs) enrichment in tumors leads to chemoresistance, which results in cancer mortality. Exposure to environmental pollutants such as polycyclic aromatic hydrocarbons is associated with an increased the risk of CSC enrichment in gynecological cancers. One of the important pathways that mediates the metabolism and bioactivation of these environmental chemicals is the transcription factor, aryl hydrocarbon receptor (AhR). The present review explores the molecular mechanisms regulating the crosstalk and interaction of the AhR with cancer-related signaling pathways, such as apoptosis, epithelial-mesenchymal transition, immune checkpoints, and G-protein-coupled receptors in several gynecological malignancies such as ovarian, uterine, endometrial, and cervical cancers. The review also discusses the potential of targeting the AhR pathway as a novel chemotherapy for gynecological cancers.
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Affiliation(s)
- Lubna Therachiyil
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar; Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.
| | - Ola J Hussein
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar.
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.
| | - Hesham M Korashy
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar.
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17
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Lamas B, Evariste L, Houdeau E. Interactions du dioxyde de titane alimentaire avec l’axe microbiote-système immunitaire : un nouvel acteur dans le développement de désordres métaboliques ? CAHIERS DE NUTRITION ET DE DIÉTÉTIQUE 2022. [DOI: 10.1016/j.cnd.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Modulation of Aryl Hydrocarbon Receptor Expression Alleviated Neuropathic Pain in a Chronic Constriction Nerve Injury Animal Model. Int J Mol Sci 2022; 23:ijms231911255. [PMID: 36232555 PMCID: PMC9570158 DOI: 10.3390/ijms231911255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 12/02/2022] Open
Abstract
Neuropathic pain is well known to occur after damage to the somatosensory system. Aryl hydrocarbon receptor (AhR) has neuroprotective effects when the central nervous system is subjected to internal and external stimulations. However, the exact mechanism by which AhR regulates neuropathic pain is poorly understood. Nerve explant culture and the chronic constrictive nerve injury (CCI) model in wild or AhR-knockout mice were used in this study. In the nerve explant culture, the ovoid number increased in the AhR−/− condition and was decreased by omeprazole (AhR agonist) in a dose-dependent manner. Increased nerve degeneration and the associated inflammation response appeared in the AhR−/− condition, and these changes were attenuated by omeprazole. High expression of AhR in the injured nerve was noted after CCI. Deletion of AhR aggravated nerve damages and this was restored by omeprazole. Deletion of AhR increased NGF expression and reduced axon number in the paw skin, but this was attenuated by omeprazole. A highly expressed inflammation reaction over the dorsal spinal cord, somatosensory cortex, and hippocampus was noted in the AhR-deleted animals. Administration of omeprazole attenuated not only the inflammatory response, but also the amplitude of somatosensory evoked potential. Deletion of AhR further aggravated the neurobehavior compared with the wild type, but such behavior was attenuated by omeprazole. Chronic constrictive nerve injury augmented AhR expression of the injured nerve, and AhR deletion worsened the damage, while AhR agonist omeprazole counteracted such changes. AhR agonists could be potential candidates for neuropathic pain treatment.
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Li H, Gao YH, Song L, Chen TF, Zhang GP, Ye ZG, Gao Y, Huo W. Ginsenoside Rg1 protects mice against 2,3,7,8-tetrachlorodibenzo-p-dioxin-induced liver injury by inhibiting CYP1A1 through the aryl hydrocarbon receptor. JOURNAL OF ETHNOPHARMACOLOGY 2022; 294:115394. [PMID: 35595219 DOI: 10.1016/j.jep.2022.115394] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/26/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Panax ginseng C. A. Meyer (ginseng) is a widely used traditional Chinese medicine that has played a beneficial role in the treatment of various diseases, including liver diseases. Ginsenoside Rg1 is a saponin isolated and purified from ginseng that exerts protective effects on the liver in some liver injury models. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a ubiquitous dioxin found mostly in food products that causes liver injury and other human diseases. Although significant efforts have been made to reduce the burden of liver disease, there is still a lack of effective treatment methods. AIM OF THE STUDY Although ginsenoside Rg1 was reported to inhibit TCDD-mediated cytochrome P450 1A1 (CYP1A1) induction in HepG2 cells, we sought to verify its hepatoprotective effects and elucidate its mechanism in a TCDD-induced liver injury model in mice. MATERIAL AND METHODS The mouse liver injury model was established by intraperitoneal TCDD injection, followed by treatment with various doses of ginsenoside Rg1 (50, 100, and 200 mg/kg). Clinical indicators of liver injury, such as an increase in serum aspartate aminotransferase and alanine aminotransferase levels, as well as histopathological changes were evaluated. RESULTS The common clinical indicators of liver injury were detected following TCDD injection, including an increase in serum alanine aminotransferase and aspartate aminotransferase levels, increased relative liver weight, and histopathological changes. Following treatment with ginsenoside Rg1, the levels of aspartate aminotransferase and alanine aminotransferase decreased significantly, and the liver histology was improved. In addition, ginsenoside Rg1 competitively inhibited TCDD-induced Cyp1a1 mRNA transcription through the modulation of aryl hydrocarbon receptor (AhR) nuclear translocation. CONCLUSION Ginsenoside Rg1 is a potent partial AhR agonist that has potential as an effective medication for protecting against TCDD-associated liver injury.
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Affiliation(s)
- Han Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yun-Hang Gao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Ling Song
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Teng-Fei Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Guang-Ping Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Zu-Guang Ye
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yue Gao
- Institute of Radiation Medicine Academy of Military Medical Sciences, Beijing, 100850, China.
| | - Wang Huo
- Department of Traditional Chinese Medicine, The Sixth Medical Center of PLA General Hospital, Beijing, 100048, China.
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20
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Benoit L, Jornod F, Zgheib E, Tomkiewicz C, Koual M, Coustillet T, Barouki R, Audouze K, Vinken M, Coumoul X. Adverse outcome pathway from activation of the AhR to breast cancer-related death. ENVIRONMENT INTERNATIONAL 2022; 165:107323. [PMID: 35660951 DOI: 10.1016/j.envint.2022.107323] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/03/2022] [Accepted: 05/24/2022] [Indexed: 05/15/2023]
Abstract
Adverse outcome pathways (AOPs) are formalized and structured linear concepts that connect one molecular initiating event (MIE) to an adverse outcome (AO) via different key events (KE) through key event relationships (KER). They are mainly used in eco-toxicology toxicology, and regulatory health issues. AOPs must respond to specific guidelines from the Organization for Economic Co-operation and Development (OECD) to weight the evidence between each KE. Breast cancer is the deadliest cancer in women with a poor prognosis in case of metastatic breast cancer. The role of the environments in the formation of metastasis has been suggested. We hypothesized that activation of the AhR (MIE), a xenobiotic receptor, could lead to breast cancer related death (AO), through different KEs, constituting a new AOP. An artificial intelligence tool (AOP-helpfinder), which screens the available literature, was used to collect all existing scientific abstracts to build a novel AOP, using a list of key words. Four hundred and seven abstracts were found containing at least a word from our MIE list and either one word from our AO or KE list. A manual curation retained 113 pertinent articles, which were also screened using PubTator. From these analyses, an AOP was created linking the activation of the AhR to breast cancer related death through decreased apoptosis, inflammation, endothelial cell migration, angiogenesis, and invasion. These KEs promote an increased tumor growth, angiogenesis and migration which leads to breast cancer metastasis and breast cancer related death. The evidence of the proposed AOP was weighted using the tailored Bradford Hill criteria and the OECD guidelines. The confidence in our AOP was considered strong. An in vitro validation must be carried out, but our review proposes a strong relationship between AhR activation and breast cancer-related death with an innovative use of an artificial intelligence literature search.
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Affiliation(s)
- Louise Benoit
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France; Assistance Publique-Hôpitaux de Paris, European Hospital Georges-Pompidou, Gynecologic and Breast Oncologic Surgery Department, Paris, France.
| | - Florence Jornod
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
| | - Elias Zgheib
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
| | - Celine Tomkiewicz
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
| | - Meriem Koual
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France; Assistance Publique-Hôpitaux de Paris, European Hospital Georges-Pompidou, Gynecologic and Breast Oncologic Surgery Department, Paris, France
| | - Thibaut Coustillet
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
| | - Robert Barouki
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France; Assistance Publique-Hôpitaux de Paris, European Hospital Georges-Pompidou, Gynecologic and Breast Oncologic Surgery Department, Paris, France
| | - Karine Audouze
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
| | - Mathieu Vinken
- Entity of In Vitro Toxicology and Dermato-Cosmetology, Department of Pharmaceutical and Pharmacological Sciences, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Xavier Coumoul
- Université Paris Cité, T3S, INSERM UMR-S 1124, 45 rue des Saints Pères, Paris, France
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21
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Gargaro M, Scalisi G, Manni G, Briseño CG, Bagadia P, Durai V, Theisen DJ, Kim S, Castelli M, Xu CA, zu Hörste GM, Servillo G, Della Fazia MA, Mencarelli G, Ricciuti D, Padiglioni E, Giacchè N, Colliva C, Pellicciari R, Calvitti M, Zelante T, Fuchs D, Orabona C, Boon L, Bessede A, Colonna M, Puccetti P, Murphy TL, Murphy KM, Fallarino F. Indoleamine 2,3-dioxygenase 1 activation in mature cDC1 promotes tolerogenic education of inflammatory cDC2 via metabolic communication. Immunity 2022; 55:1032-1050.e14. [PMID: 35704993 PMCID: PMC9220322 DOI: 10.1016/j.immuni.2022.05.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/07/2022] [Accepted: 05/17/2022] [Indexed: 12/14/2022]
Abstract
Conventional dendritic cells (cDCs), cDC1 and cDC2, act both to initiate immunity and maintain self-tolerance. The tryptophan metabolic enzyme indoleamine 2,3-dioxygenase 1 (IDO1) is used by cDCs in maintaining tolerance, but its role in different subsets remains unclear. At homeostasis, only mature CCR7+ cDC1 expressed IDO1 that was dependent on IRF8. Lipopolysaccharide treatment induced maturation and IDO1-dependent tolerogenic activity in isolated immature cDC1, but not isolated cDC2. However, both human and mouse cDC2 could induce IDO1 and acquire tolerogenic function when co-cultured with mature cDC1 through the action of cDC1-derived l-kynurenine. Accordingly, cDC1-specific inactivation of IDO1 in vivo exacerbated disease in experimental autoimmune encephalomyelitis. This study identifies a previously unrecognized metabolic communication in which IDO1-expressing cDC1 cells extend their immunoregulatory capacity to the cDC2 subset through their production of tryptophan metabolite l-kynurenine. This metabolic axis represents a potential therapeutic target in treating autoimmune demyelinating diseases.
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Affiliation(s)
- Marco Gargaro
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy,Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Giulia Scalisi
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Giorgia Manni
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Carlos G. Briseño
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Prachi Bagadia
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Vivek Durai
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Derek J. Theisen
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Sunkyung Kim
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Marilena Castelli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Chenling A. Xu
- Department of Electrical Engineering & Computer Science, Center for Computational Biology, University of California, Berkeley, CA, USA
| | - Gerd Meyer zu Hörste
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Giuseppe Servillo
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy,University research center in functional genomics (c.u.r.ge.f.), University of Perugia, Perugia, Italy
| | | | - Giulia Mencarelli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Doriana Ricciuti
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | | | | | | | - Mario Calvitti
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Teresa Zelante
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Ciriana Orabona
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | | | - Marco Colonna
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Paolo Puccetti
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy,University research center in functional genomics (c.u.r.ge.f.), University of Perugia, Perugia, Italy
| | - Theresa L. Murphy
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Kenneth M. Murphy
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA,Howard Hughes Medical Institute, Washington University in St. Louis School of Medicine, St. Louis, MO, USA,Corresponding author
| | - Francesca Fallarino
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy; University research center in functional genomics (c.u.r.ge.f.), University of Perugia, Perugia, Italy.
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22
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Rosmarinus officinalis L. Leaf Extracts and Their Metabolites Inhibit the Aryl Hydrocarbon Receptor (AhR) Activation In Vitro and in Human Keratinocytes: Potential Impact on Inflammatory Skin Diseases and Skin Cancer. Molecules 2022; 27:molecules27082499. [PMID: 35458697 PMCID: PMC9029298 DOI: 10.3390/molecules27082499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/01/2022] [Accepted: 04/10/2022] [Indexed: 12/02/2022] Open
Abstract
Aryl hydrocarbon receptor (AhR) activation by environmental agents and microbial metabolites is potentially implicated in a series of skin diseases. Hence, it would be very important to identify natural compounds that could inhibit the AhR activation by ligands of microbial origin as 6-formylindolo[3,2-b]carbazole (FICZ), indirubin (IND) and pityriazepin (PZ) or the prototype ligand 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Five different dry Rosmarinus officinalis L. extracts (ROEs) were assayed for their activities as antagonists of AhR ligand binding with guinea pig cytosol in the presence of [3H]TCDD. The methanolic ROE was further assayed towards CYP1A1 mRNA induction using RT-PCR in human keratinocytes against TCDD, FICZ, PZ, and IND. The isolated metabolites, carnosic acid, carnosol, 7-O-methyl-epi-rosmanol, 4′,7-O-dimethylapigenin, and betulinic acid, were assayed for their agonist and antagonist activity in the presence and absence of TCDD using the gel retardation assay (GRA). All assayed ROE extracts showed similar dose-dependent activities with almost complete inhibition of AhR activation by TCDD at 100 ppm. The methanol ROE at 10 ppm showed 99%, 50%, 90%, and 85% inhibition against TCDD, FICZ, IND, and PZ, respectively, in human keratinocytes. Most assayed metabolites exhibited dose-dependent antagonist activity. ROEs inhibit AhR activation by TCDD and by the Malassezia metabolites FICZ, PZ, and IND. Hence, ROE could be useful for the prevention or treatment of skin diseases mediated by activation of AhR.
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Brinkmann V, Romeo M, Larigot L, Hemmers A, Tschage L, Kleinjohann J, Schiavi A, Steinwachs S, Esser C, Menzel R, Giani Tagliabue S, Bonati L, Cox F, Ale-Agha N, Jakobs P, Altschmied J, Haendeler J, Coumoul X, Ventura N. Aryl Hydrocarbon Receptor-Dependent and -Independent Pathways Mediate Curcumin Anti-Aging Effects. Antioxidants (Basel) 2022; 11:613. [PMID: 35453298 PMCID: PMC9024831 DOI: 10.3390/antiox11040613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 02/04/2023] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor whose activity can be modulated by polyphenols, such as curcumin. AhR and curcumin have evolutionarily conserved effects on aging. Here, we investigated whether and how the AhR mediates the anti-aging effects of curcumin across species. Using a combination of in vivo, in vitro, and in silico analyses, we demonstrated that curcumin has AhR-dependent or -independent effects in a context-specific manner. We found that in Caenorhabditis elegans, AhR mediates curcumin-induced lifespan extension, most likely through a ligand-independent inhibitory mechanism related to its antioxidant activity. Curcumin also showed AhR-independent anti-aging activities, such as protection against aggregation-prone proteins and oxidative stress in C. elegans and promotion of the migratory capacity of human primary endothelial cells. These AhR-independent effects are largely mediated by the Nrf2/SKN-1 pathway.
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Affiliation(s)
- Vanessa Brinkmann
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Margherita Romeo
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Lucie Larigot
- Faculté des Sciences Fondamentales et Biomédicales, Université de Paris, 45 Rue des Saints-Pères, F-75006 Paris, France; (L.L.); (X.C.)
| | - Anne Hemmers
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Lisa Tschage
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Jennifer Kleinjohann
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Alfonso Schiavi
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Swantje Steinwachs
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Charlotte Esser
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Ralph Menzel
- Institute of Biology, Humboldt-University Berlin, Philippstr. 13, 10115 Berlin, Germany;
| | - Sara Giani Tagliabue
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (S.G.T.); (L.B.)
| | - Laura Bonati
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (S.G.T.); (L.B.)
| | - Fiona Cox
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- Institute of Clinical Pharmacology and Pharmacology, Medical Faculty, University Hospital and Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
| | - Niloofar Ale-Agha
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
| | - Philipp Jakobs
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
| | - Joachim Altschmied
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
| | - Judith Haendeler
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
| | - Xavier Coumoul
- Faculté des Sciences Fondamentales et Biomédicales, Université de Paris, 45 Rue des Saints-Pères, F-75006 Paris, France; (L.L.); (X.C.)
| | - Natascia Ventura
- Institute of Clinical Chemistry and Laboratory Diagnostic, Medical Faculty, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany; (V.B.); (M.R.); (A.S.); (F.C.); (N.A.-A.); (P.J.); (J.A.); (J.H.)
- IUF—Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany; (A.H.); (L.T.); (J.K.); (S.S.); (C.E.)
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Karengera A, Sterken MG, Kammenga JE, Riksen JAG, Dinkla IJT, Murk AJ. Differential expression of genes in C. elegans reveals transcriptional responses to indirect-acting xenobiotic compounds and insensitivity to 2,3,7,8-tetrachlorodibenzodioxin. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 233:113344. [PMID: 35219257 DOI: 10.1016/j.ecoenv.2022.113344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/12/2022] [Accepted: 02/20/2022] [Indexed: 05/14/2023]
Abstract
Caenorhabditis elegans is a well-established model organism for toxicity testing of chemical substances. We recently demonstrated its potential for bioanalysis of the toxic potency of chemical contaminants in water. While many detoxification genes are homologues to those in mammalians, C. elegans is reported to be deficient in cytochrome CYP1-like P450 metabolism and that its aryl hydrocarbon receptor (AhR) homolog encoded by ahr-1 purportedly does not interact with dioxins or any other known xenobiotic ligand. This suggests that C. elegans is insensitive for compounds that require bioactivation (indirectly acting compounds) and for dioxins or dioxin-like compounds. This study analysed genome-wide gene expression of the nematode in response to 30 μM of aflatoxin B1 (AFB1), benzo(a)pyrene (B(a)P), Aroclor 1254 (PCB1254), and 10 μM of 2,3,7,8-tetrachlorodibenzodioxin (TCDD). After 24 h of exposure in the early L4 larval stage, microarray analysis revealed 182, 86, and 321 differentially expressed genes in the nematodes treated with 30 μM of AFB1, B(a)P, and PCB1254, respectively. Among these genes, many encode xenobiotic-metabolizing enzymes, and their transcription levels were among the highest-ranked fold-changed genes. Interestingly, only one gene (F59B1.8) was upregulated in the nematodes exposed to 10 μM TCDD. Genes related to metabolic processes and catalytic activity were the most induced by exposure to 30 μM of AFB1, B(a)P, and PCB1254. Despite the genotoxic nature of AFB1 and B(a)P, no differential expression was found in the genes encoding DNA repair and cell cycle checkpoint proteins. Analysis of concentration-response curves was performed to determine the Lowest Observed Transcriptomic Effect Levels (LOTEL) of AFB1, B(a)P, and PCB1254. The obtained LOTEL values showed that gene expression changes in C. elegans are more sensitive to toxicants than reproductive effects. Overall, transcriptional responses of metabolic enzymes suggest that the nematode does metabolize AFB1, B(a)P, and PCB1254. Our findings also support the assumption that the transcription factor AhR homolog in C. elegans does not bind typical xenobiotic ligands, rendering the nematode transcriptionally insensitive to TCDD effects.
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Affiliation(s)
- Antoine Karengera
- Wageningen University, Department of Animal Sciences, Marine Animal Ecology Group, De Elst 1, 6708 WD Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Mark G Sterken
- Wageningen University, Plant Sciences, Laboratory of Nematology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Jan E Kammenga
- Wageningen University, Plant Sciences, Laboratory of Nematology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Joost A G Riksen
- Wageningen University, Plant Sciences, Laboratory of Nematology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Inez J T Dinkla
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Albertinka J Murk
- Wageningen University, Department of Animal Sciences, Marine Animal Ecology Group, De Elst 1, 6708 WD Wageningen, The Netherlands.
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Coelho NR, Pimpão AB, Correia MJ, Rodrigues TC, Monteiro EC, Morello J, Pereira SA. Pharmacological blockage of the AHR-CYP1A1 axis: a call for in vivo evidence. J Mol Med (Berl) 2021; 100:215-243. [PMID: 34800164 PMCID: PMC8605459 DOI: 10.1007/s00109-021-02163-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 01/21/2023]
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that can be activated by structurally diverse compounds arising from the environment and the microbiota and host metabolism. Expanding evidence has been shown that the modulation of the canonical pathway of AHR occurs during several chronic diseases and that its abrogation might be of clinical interest for metabolic and inflammatory pathological processes. However, most of the evidence on the pharmacological abrogation of the AHR-CYP1A1 axis has been reported in vitro, and therefore, guidance for in vivo studies is needed. In this review, we cover the state-of-the-art of the pharmacodynamic and pharmacokinetic properties of AHR antagonists and CYP1A1 inhibitors in different in vivo rodent (mouse or rat) models of disease. This review will serve as a road map for those researchers embracing this emerging therapeutic area targeting the AHR. Moreover, it is a timely opportunity as the first AHR antagonists have recently entered the clinical stage of drug development.
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Affiliation(s)
- N R Coelho
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - A B Pimpão
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - M J Correia
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - T C Rodrigues
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - E C Monteiro
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - J Morello
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal
| | - S A Pereira
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
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26
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Molecular Mechanisms of the SLC13A5 Gene Transcription. Metabolites 2021; 11:metabo11100706. [PMID: 34677420 PMCID: PMC8537064 DOI: 10.3390/metabo11100706] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/02/2022] Open
Abstract
Citrate is a crucial energy sensor that plays a central role in cellular metabolic homeostasis. The solute carrier family 13 member 5 (SLC13A5), a sodium-coupled citrate transporter highly expressed in the mammalian liver with relatively low levels in the testis and brain, imports citrate from extracellular spaces into the cells. The perturbation of SLC13A5 expression and/or activity is associated with non-alcoholic fatty liver disease, obesity, insulin resistance, cell proliferation, and early infantile epileptic encephalopathy. SLC13A5 has been proposed as a promising therapeutic target for the treatment of these metabolic disorders. In the liver, the inductive expression of SLC13A5 has been linked to several xenobiotic receptors such as the pregnane X receptor and the aryl hydrocarbon receptor as well as certain hormonal and nutritional stimuli. Nevertheless, in comparison to the heightened interest in understanding the biological function and clinical relevance of SLC13A5, studies focusing on the regulatory mechanisms of SLC13A5 expression are relatively limited. In this review, we discuss the current advances in our understanding of the molecular mechanisms by which the expression of SLC13A5 is regulated. We expect this review will provide greater insights into the regulation of the SLC13A5 gene transcription and the signaling pathways involved therein.
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Correia MJ, Pimpão AB, Lopes-Coelho F, Sequeira CO, Coelho NR, Gonçalves-Dias C, Barouki R, Coumoul X, Serpa J, Morello J, Monteiro EC, Pereira SA. Aryl Hydrocarbon Receptor and Cysteine Redox Dynamics Underlie (Mal)adaptive Mechanisms to Chronic Intermittent Hypoxia in Kidney Cortex. Antioxidants (Basel) 2021; 10:antiox10091484. [PMID: 34573115 PMCID: PMC8469308 DOI: 10.3390/antiox10091484] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/31/2022] Open
Abstract
We hypothesized that an interplay between aryl hydrocarbon receptor (AhR) and cysteine-related thiolome at the kidney cortex underlies the mechanisms of (mal)adaptation to chronic intermittent hypoxia (CIH), promoting arterial hypertension (HTN). Using a rat model of CIH-HTN, we investigated the impact of short-term (1 and 7 days), mid-term (14 and 21 days, pre-HTN), and long-term intermittent hypoxia (IH) (up to 60 days, established HTN) on CYP1A1 protein level (a sensitive hallmark of AhR activation) and cysteine-related thiol pools. We found that acute and chronic IH had opposite effects on CYP1A1 and the thiolome. While short-term IH decreased CYP1A1 and increased protein-S-thiolation, long-term IH increased CYP1A1 and free oxidized cysteine. In addition, an in vitro administration of cystine, but not cysteine, to human endothelial cells increased Cyp1a1 expression, supporting cystine as a putative AhR activator. This study supports CYP1A1 as a biomarker of obstructive sleep apnea (OSA) severity and oxidized pools of cysteine as risk indicator of OSA-HTN. This work contributes to a better understanding of the mechanisms underlying the phenotype of OSA-HTN, mimicked by this model, which is in line with precision medicine challenges in OSA.
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Affiliation(s)
- Maria João Correia
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - António B. Pimpão
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Filipa Lopes-Coelho
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
- Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), Rua Prof Lima Basto, 1099-023 Lisboa, Portugal
| | - Catarina O. Sequeira
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Nuno R. Coelho
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Clara Gonçalves-Dias
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Robert Barouki
- INSERM UMR-S 1124, 3TS, Environmental Toxicity, Therapeutic Targets, Cellular Signaling and Biomarkers, Université de Paris, 45 rue des Saints-Pères, 75006 Paris, France; (R.B.); (X.C.)
| | - Xavier Coumoul
- INSERM UMR-S 1124, 3TS, Environmental Toxicity, Therapeutic Targets, Cellular Signaling and Biomarkers, Université de Paris, 45 rue des Saints-Pères, 75006 Paris, France; (R.B.); (X.C.)
| | - Jacinta Serpa
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
- Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), Rua Prof Lima Basto, 1099-023 Lisboa, Portugal
| | - Judit Morello
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Emília C. Monteiro
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
| | - Sofia A. Pereira
- CEDOC, NOVA Medical School, Universidade Nova de Lisboa, 1169-056 Lisboa, Portugal; (M.J.C.); (A.B.P.); (F.L.-C.); (C.O.S.); (N.R.C.); (C.G.-D.); (J.S.); (J.M.); (E.C.M.)
- Correspondence:
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Liu Y, Chen Y, Sha R, Li Y, Xu T, Hu X, Xu L, Xie Q, Zhao B. A new insight into the role of aryl hydrocarbon receptor (AhR) in the migration of glioblastoma by AhR-IL24 axis regulation. ENVIRONMENT INTERNATIONAL 2021; 154:106658. [PMID: 34082239 DOI: 10.1016/j.envint.2021.106658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Cancer occurrence and development are closely related to the environment. Aryl hydrocarbon receptor (AhR) is an important receptor mediating the toxic effects of many environmental compounds, and is also involved in regulating tumor cell migration. Glioblastoma is the most malignant glioma and exhibits high motility, but the effects of AhR on the migration of glioblastoma are still unclear. We aimed to understand the role of AhR in the migration of this type of tumor cell and to explore the underlying molecular mechanism. In cultured human neuroblastoma cells (U87), we found that AhR overexpression or knockdown increased or suppressed the migration ability of U87 cells, respectively. Furthermore, inhibition of basal activation of the AhR pathway suppressed migration ability, suggesting a positive correlation between endogenous activity of the AhR pathway and cell migration. When the AhR pathway was activated by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) or 6-formyl [3,2-b] carbazole (FICZ), the migration of U87 cells was inhibited by inducing the expression of a tumor suppressor, IL24, which is a downstream responsive gene of AhR activation. Moreover, a similar AhR-IL24-dependent mechanism for migration inhibition of TCDD was documented in a breast cancer cell line and a lung cancer cell line. This study demonstrated that AhR plays important roles in regulating the migration of glioblastoma, and the induction of the AhR-IL24 axis mediates the inhibition of migration in response to TCDD or FICZ treatment.
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Affiliation(s)
- Yiyun Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yangsheng Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Rui Sha
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yunping Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Tong Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoxu Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Li Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Qunhui Xie
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Bin Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China.
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Segner H, Bailey C, Tafalla C, Bo J. Immunotoxicity of Xenobiotics in Fish: A Role for the Aryl Hydrocarbon Receptor (AhR)? Int J Mol Sci 2021; 22:ijms22179460. [PMID: 34502366 PMCID: PMC8430475 DOI: 10.3390/ijms22179460] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
The impact of anthropogenic contaminants on the immune system of fishes is an issue of growing concern. An important xenobiotic receptor that mediates effects of chemicals, such as halogenated aromatic hydrocarbons (HAHs) and polyaromatic hydrocarbons (PAHs), is the aryl hydrocarbon receptor (AhR). Fish toxicological research has focused on the role of this receptor in xenobiotic biotransformation as well as in causing developmental, cardiac, and reproductive toxicity. However, biomedical research has unraveled an important physiological role of the AhR in the immune system, what suggests that this receptor could be involved in immunotoxic effects of environmental contaminants. The aims of the present review are to critically discuss the available knowledge on (i) the expression and possible function of the AhR in the immune systems of teleost fishes; and (ii) the impact of AhR-activating xenobiotics on the immune systems of fish at the levels of immune gene expression, immune cell proliferation and immune cell function, immune pathology, and resistance to infectious disease. The existing information indicates that the AhR is expressed in the fish immune system, but currently, we have little understanding of its physiological role. Exposure to AhR-activating contaminants results in the modulation of numerous immune structural and functional parameters of fish. Despite the diversity of fish species studied and the experimental conditions investigated, the published findings rather uniformly point to immunosuppressive actions of xenobiotic AhR ligands in fish. These effects are often associated with increased disease susceptibility. The fact that fish populations from HAH- and PAH-contaminated environments suffer immune disturbances and elevated disease susceptibility highlights that the immunotoxic effects of AhR-activating xenobiotics bear environmental relevance.
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Affiliation(s)
- Helmut Segner
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | | | | | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Xiamen 361005, China
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Sun S, Shi W, Tang Y, Han Y, Du X, Zhou W, Zhang W, Sun C, Liu G. The toxic impacts of microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) on haematic parameters in a marine bivalve species and their potential mechanisms of action. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:147003. [PMID: 33865135 DOI: 10.1016/j.scitotenv.2021.147003] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
Microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) are universally detected in the marine ecosystem and may exert adverse impacts on marine species. Although under realistic pollution scenarios, PAH pollution usually occurs as a mixture of different PAH compounds, the toxic impacts of PAH mixtures on marine organisms remain largely unknown to date, including their interactions with other emergent pollutants such as MPs. In this study, the single and combined toxic impacts of polystyrene MPs and a mixture of PAHs (standard mix of 16 representative PAHs) on haematic parameters were evaluated in the blood clam Tegillarca granosa. Our data demonstrated that blood clams treated with the pollutants examined led to decreased total haemocyte count (THC), changed haematic composition, and inhibited phagocytosis of haemocytes. Further analyses indicated that MPs and a mixture of PAHs may exert toxic impacts on haematic parameters by elevating the intracellular contents of reactive oxygen species (ROS), giving rise to lipid peroxidation (LPO) and DNA damage, reducing the viability of haemocytes, and disrupting important molecular signalling pathways (indicated by significantly altered expressions of key genes). In addition, compared to clams treated with a single type of pollutant, coexposure to MPs and a mixture of PAHs exerted more severe adverse impacts on all the parameters investigated, indicating a significant synergistic effect of MPs and PAHs.
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Affiliation(s)
- Shuge Sun
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yu Tang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xueying Du
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Weishang Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Weixia Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Changsen Sun
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, PR China.
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China.
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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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Gargaro M, Manni G, Scalisi G, Puccetti P, Fallarino F. Tryptophan Metabolites at the Crossroad of Immune-Cell Interaction via the Aryl Hydrocarbon Receptor: Implications for Tumor Immunotherapy. Int J Mol Sci 2021; 22:ijms22094644. [PMID: 33924971 PMCID: PMC8125364 DOI: 10.3390/ijms22094644] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/25/2021] [Accepted: 04/25/2021] [Indexed: 02/07/2023] Open
Abstract
The Aryl hydrocarbon receptor (AhR) is a critical regulator of both innate and adaptive immune responses, with potent immunomodulatory effects that makes this receptor an attractive molecular target for novel therapeutics. Accumulating evidence indicates that diverse—both host’s and microbial—tryptophan metabolites profoundly regulate the immune system in the host via AhR, promoting either tolerance or immunity, largely as a function of the qualitative and quantitative nature of the metabolites being contributed by either source. Additional findings indicate that host and microbiota-derived tryptophan metabolic pathways can influence the outcome of immune responses to tumors. Here, we review recent studies on the role and modalities of AhR activation by various ligands, derived from either host-cell or microbial-cell tryptophan metabolic pathways, in the regulation of immune responses. Moreover, we highlight potential implications of those ligands and pathways in tumor immunotherapy, with particular relevance to checkpoint-blockade immune intervention strategies.
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Casalegno M, Raos G, Sello G. Identification of viable TCDD access pathways to human AhR PAS-B ligand binding domain. J Mol Graph Model 2021; 105:107886. [PMID: 33706219 DOI: 10.1016/j.jmgm.2021.107886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/06/2021] [Accepted: 02/22/2021] [Indexed: 12/02/2022]
Abstract
Unintentionally released in the environment as by-products of industrial activities, dioxins, exemplified by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), represent a primary concern for human health. Exposure to these chemicals is known to produce a broad spectrum of adverse effects, including cancer. The main mechanism of action of TCDD in humans involves binding to the Aryl hydrocarbon Receptor (AhR). Although qualitatively established, TCDD capture by the AhR remains poorly characterized at the molecular level. Starting from a recently developed structural model of the human AhR PAS-B domain, in this work we attempt the identification of viable TCDD access pathways to the human AhR ligand binding domain by means of molecular dynamics. Based on the result of metadynamics simulations, we identify two main regions that may potentially serve as access paths for TCDD. For each path, we characterize the residues closely interacting with TCDD, thereby suggesting a possible mechanism for TCDD capture. Our results are reviewed and discussed in the light of the available information about Human AhR structure and functions.
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Affiliation(s)
- Mosè Casalegno
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milano, Italy.
| | - Guido Raos
- Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milano, Italy.
| | - Guido Sello
- Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, I-20133, Milano, Italy.
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Koual M, Tomkiewicz C, Guerrera IC, Sherr D, Barouki R, Coumoul X. Aggressiveness and Metastatic Potential of Breast Cancer Cells Co-Cultured with Preadipocytes and Exposed to an Environmental Pollutant Dioxin: An in Vitro and in Vivo Zebrafish Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:37002. [PMID: 33683140 PMCID: PMC7939125 DOI: 10.1289/ehp7102] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 01/27/2021] [Accepted: 02/09/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND Breast cancer (BC) is a major public health concern, and its prognosis is very poor once metastasis occurs. The tumor microenvironment and chemical pollution have been suggested recently to contribute, independently, to the development of metastatic cells. The BC microenvironment consists, in part, of adipocytes and preadipocytes in which persistent organic pollutants (POPs) can be stored. OBJECTIVES We aimed to test the hypothesis that these two factors (2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an extensively studied, toxic POP and the microenvironment) may interact to increase tumor aggressiveness. METHODS We used a co-culture model using BC MCF-7 cells or MDA-MB-231 cells together with hMADS preadipocytes to investigate the contribution of the microenvironment and 2,3,7,8-tetrachlorodibenzo-p-dioxin TCDD on BC cells. Global differences were characterized using a high-throughput proteomic assay. Subsequently we measured the BC stem cell-like activity, analyzed the cell morphology, and used a zebrafish larvae model to study the metastatic potential of the BC cells. RESULTS We found that coexposure to TCDD and preadipocytes modified BC cell properties; moreover, it induced the expression of ALDH1A3, a cancer stem cell marker, and the appearance of giant cancer cells with cell-in-cell structures (CICs), which are associated with malignant metastatic progression, that we demonstrated in vivo. DISCUSSION The results of our study using BC cell lines co-cultured with preadipocytes and a POP and an in vivo zebrafish model of metastasis suggest that the interactions between BC cells and their microenvironment could affect their invasive or metastatic potential. https://doi.org/10.1289/EHP7102.
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Affiliation(s)
- Meriem Koual
- UMR-S1124, Institut national de la santé et de la recherché médicale (Inserm), T3S, Toxicologie Environnementale, Cibles thérapeutiques, Signalisation cellulaire et Biomarqueurs, Paris, France
- Service de Chirurgie Cancérologique Gynécologique et du Sein, Hôpital Européen Georges-Pompidou, Assistance Publique-Hôpitaux de Paris, France
- Université de Paris, Paris, France
| | - Céline Tomkiewicz
- UMR-S1124, Institut national de la santé et de la recherché médicale (Inserm), T3S, Toxicologie Environnementale, Cibles thérapeutiques, Signalisation cellulaire et Biomarqueurs, Paris, France
| | - Ida Chiara Guerrera
- Plateforme protéomique 3P5-Necker, Structure Fédérative de Recherche Necker, Université de Paris, US24/CNRS UMS3633, Inserm, Paris, France
| | - David Sherr
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Robert Barouki
- UMR-S1124, Institut national de la santé et de la recherché médicale (Inserm), T3S, Toxicologie Environnementale, Cibles thérapeutiques, Signalisation cellulaire et Biomarqueurs, Paris, France
- Université de Paris, Paris, France
| | - Xavier Coumoul
- UMR-S1124, Institut national de la santé et de la recherché médicale (Inserm), T3S, Toxicologie Environnementale, Cibles thérapeutiques, Signalisation cellulaire et Biomarqueurs, Paris, France
- Université de Paris, Paris, France
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Coelho NR, Matos C, Pimpão AB, Correia MJ, Sequeira CO, Morello J, Pereira SA, Monteiro EC. AHR canonical pathway: in vivo findings to support novel antihypertensive strategies. Pharmacol Res 2021; 165:105407. [PMID: 33418029 DOI: 10.1016/j.phrs.2020.105407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 12/23/2022]
Abstract
Essential hypertension (HTN) is a disease where genetic and environmental factors interact to produce a high prevalent set of almost indistinguishable phenotypes. The weak definition of what is under the umbrella of HTN is a consequence of the lack of knowledge on the players involved in environment-gene interaction and their impact on blood pressure (BP) and mechanisms. The disclosure of these mechanisms that sense and (mal)adapt to toxic-environmental stimuli might at least determine some phenotypes of essential HTN and will have important therapeutic implications. In the present manuscript, we looked closer to the environmental sensor aryl hydrocarbon receptor (AHR), a ligand-activated transcription factor involved in cardiovascular physiology, but better known by its involvement in biotransformation of xenobiotics through its canonical pathway. This review aims to disclose the contribution of the AHR-canonical pathway to HTN. For better mirror the complexity of the mechanisms involved in BP regulation, we privileged evidence from in vivo studies. Here we ascertained the level of available evidence and a comprehensive characterization of the AHR-related phenotype of HTN. We reviewed clinical and rodent studies on AHR-HTN genetic association and on AHR ligands and their impact on BP. We concluded that AHR is a druggable mechanistic linker of environmental exposure to HTN. We conclude that is worth to investigate the canonical pathway of AHR and the expression/polymorphisms of its related genes and/or other biomarkers (e.g. tryptophan-related ligands), in order to identify patients that may benefit from an AHR-centered antihypertensive treatment.
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Affiliation(s)
- Nuno R Coelho
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - Clara Matos
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - António B Pimpão
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - M João Correia
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - Catarina O Sequeira
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - Judit Morello
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
| | - Sofia A Pereira
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal.
| | - Emília C Monteiro
- Translational Pharmacology Lab, CEDOC, Chronic Diseases Research Centre, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, Lisboa, 1169-056, Portugal
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Le Magueresse-Battistoni B. Adipose Tissue and Endocrine-Disrupting Chemicals: Does Sex Matter? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249403. [PMID: 33333918 PMCID: PMC7765367 DOI: 10.3390/ijerph17249403] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022]
Abstract
Obesity and metabolic-related diseases, among which diabetes, are prominent public health challenges of the 21st century. It is now well acknowledged that pollutants are a part of the equation, especially endocrine-disrupting chemicals (EDCs) that interfere with the hormonal aspect. The aim of the review is to focus on adipose tissue, a central regulator of energy balance and metabolic homeostasis, and to highlight the significant differences in the endocrine and metabolic aspects of adipose tissue between males and females which likely underlie the differences of the response to exposure to EDCs between the sexes. Moreover, the study also presents an overview of several mechanisms of action by which pollutants could cause adipose tissue dysfunction. Indeed, a better understanding of the mechanism by which environmental chemicals target adipose tissue and cause metabolic disturbances, and how these mechanisms interact and sex specificities are essential for developing mitigating and sex-specific strategies against metabolic diseases of chemical origin. In particular, considering that a scenario without pollutant exposure is not a realistic option in our current societies, attenuating the deleterious effects of exposure to pollutants by acting on the gut-adipose tissue axis may constitute a new direction of research.
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Affiliation(s)
- Brigitte Le Magueresse-Battistoni
- Univ-Lyon, CarMeN Laboratory, INSERM U1060, INRAé U1397, Université Claude Bernard Lyon1, F-69310 Pierre-Bénite, France; ; Tel.: +33-(0)-426235919; Fax: +33-(0)-426235916
- CarMeN Laboratory, INSERM U1060, Hopital Lyon-Sud, Bâtiment CENS ELI-2D, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
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Brinkmann V, Schiavi A, Shaik A, Puchta DR, Ventura N. Dietary and environmental factors have opposite AhR-dependent effects on C. elegans healthspan. Aging (Albany NY) 2020; 13:104-133. [PMID: 33349622 PMCID: PMC7835051 DOI: 10.18632/aging.202316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/08/2020] [Indexed: 12/14/2022]
Abstract
Genetic, dietary, and environmental factors concurrently shape the aging process. The aryl hydrocarbon receptor (AhR) was discovered as a dioxin-binding transcription factor involved in the metabolism of different environmental toxicants in vertebrates. Since then, the variety of pathophysiological processes regulated by the AhR has grown, ranging from immune response, metabolic pathways, and aging. Many modulators of AhR activity may impact on aging and age-associated pathologies, but, whether their effects are AhR-dependent has never been explored. Here, using Caenorhabditis elegans, as an elective model organism for aging studies, we show for the first time that lack of CeAHR-1 can have opposite effects on health and lifespan in a context-dependent manner. Using known mammalian AhR modulators we found that, ahr-1 protects against environmental insults (benzo(a)pyrene and UVB light) and identified a new role for AhR-bacterial diet interaction in animal lifespan, stress resistance, and age-associated pathologies. We narrowed down the dietary factor to a bacterially extruded metabolite likely involved in tryptophan metabolism. This is the first study clearly establishing C. elegans as a good model organism to investigate evolutionarily conserved functions of AhR-modulators and -regulated processes, indicating it can be exploited to contribute to the discovery of novel information about AhR in mammals.
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Affiliation(s)
- Vanessa Brinkmann
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Alfonso Schiavi
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
| | - Anjumara Shaik
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
| | - Daniel Rüdiger Puchta
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Natascia Ventura
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
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The Aryl Hydrocarbon Receptor in Asthma: Friend or Foe? Int J Mol Sci 2020; 21:ijms21228797. [PMID: 33233810 PMCID: PMC7699852 DOI: 10.3390/ijms21228797] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that has emerged as an important player in asthma control. AhR is responsive to environmental molecules and endogenous or dietary metabolites and regulates innate and adaptive immune responses. Binding of this receptor by different ligands has led to seemingly opposite responses in different asthma models. In this review, we present two sides of the same coin, with the beneficial and deleterious roles of AhR evaluated using known endogenous or exogenous ligands, deficient mice or antagonists. On one hand, AhR has an anti-inflammatory role since its activation in dendritic cells blocks the generation of pro-inflammatory T cells or shifts macrophages toward an anti-inflammatory M2 phenotype. On the other hand, AhR activation by particle-associated polycyclic aromatic hydrocarbons from the environment is pro-inflammatory, inducing mucus hypersecretion, airway remodelling, dysregulation of antigen presenting cells and exacerbates asthma features. Data concerning the role of AhR in cells from asthmatic patients are also reviewed, since AhR could represent a potential target for therapeutic immunomodulation.
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Aftabi Y, Rafei S, Zarredar H, Amiri-Sadeghan A, Akbari-Shahpar M, Khoshkam Z, Seyedrezazadeh E, Khalili M, Mehrnejad F, Fereidouni S, Lawrence BP. Refinement of coding SNPs in the human aryl hydrocarbon receptor gene using ISNPranker: An integrative-SNP ranking web-tool. Comput Biol Chem 2020; 90:107416. [PMID: 33264727 DOI: 10.1016/j.compbiolchem.2020.107416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/14/2022]
Abstract
Different bioinformatic methods apply various approaches to predict how much the effect of a SNP could be deleterious and therefore their results may differ significantly. However, variation studies often need to consider an integrated prediction result to analyze the effect of SNPs. To address this problem, we used an algorithm to map ordinal predictions to a numeral space and averaging them, and based on it we developed the ISNPranker web-tool (http://isnpranker.semilab.ir/). It takes heterogonous outputs of different predictors and generates integrated numerical predictions and ranks SNPs based on them. Afterward, we used ISNPranker to identify the most deleterious coding SNPs (cSNPs) of the human aryl hydrocarbon receptor (AHR) gene. AHR is a ligand-activated transcription factor that governs many molecular and cellular mechanisms and cSNPs may affect its structure, interactions, and function. Forty validated cSNPs of AHR were initially analyzed using 16 publicly available SNP analyzers and the results were introduced to the ISNPranker and integrated predictions were obtained. The cSNPs were ranked in 34 levels of danger and rs200257782 in the ARNT dimerization domain (ADD121-289) of AHR was identified as the most deleterious cSNP. The rs148360742, which affect ADD40-79 and Hsp90 binding domain (HBD27-79) was in the second rank and the third and fourth ranks were occupied by ADD121-289-located variations rs571123681 and rs141667112 respectively. In conclusion, we introduced ISNPranker, which is a web-tool for integrative ranking of SNPs, and we showed that AHR structure and function may be highly sensitive to the cSNPs in the ARNT dimerization domain.
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Affiliation(s)
- Younes Aftabi
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran.
| | - Saleh Rafei
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran
| | - Habib Zarredar
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran
| | - Amir Amiri-Sadeghan
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran
| | - Mohsen Akbari-Shahpar
- Department of Computer Engineering, Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
| | - Zahra Khoshkam
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran; Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Tehran, Tehran, Iran
| | - Ensiyeh Seyedrezazadeh
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran
| | - Majid Khalili
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box: 53714161, Tabriz, Iran
| | - Faramarz Mehrnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Sasan Fereidouni
- Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, Vienna, Austria
| | - B Paige Lawrence
- Departments of Environmental Medicine and Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
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Garland MA, Reynolds K, Zhou CJ. Environmental mechanisms of orofacial clefts. Birth Defects Res 2020; 112:1660-1698. [PMID: 33125192 PMCID: PMC7902093 DOI: 10.1002/bdr2.1830] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022]
Abstract
Orofacial clefts (OFCs) are among the most common birth defects and impart a significant burden on afflicted individuals and their families. It is increasingly understood that many nonsyndromic OFCs are a consequence of extrinsic factors, genetic susceptibilities, and interactions of the two. Therefore, understanding the environmental mechanisms of OFCs is important in the prevention of future cases. This review examines the molecular mechanisms associated with environmental factors that either protect against or increase the risk of OFCs. We focus on essential metabolic pathways, environmental signaling mechanisms, detoxification pathways, behavioral risk factors, and biological hazards that may disrupt orofacial development.
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Affiliation(s)
- Michael A. Garland
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, CA 95817
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, CA 95817
| | - Kurt Reynolds
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, CA 95817
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, CA 95817
- Biochemistry, Molecular, Cellular, and Developmental Biology (BMCDB) graduate group, University of California, Davis, CA 95616
| | - Chengji J. Zhou
- Department of Biochemistry and Molecular Medicine, University of California at Davis, School of Medicine, Sacramento, CA 95817
- Institute for Pediatric Regenerative Medicine of Shriners Hospitals for Children, University of California at Davis, School of Medicine, Sacramento, CA 95817
- Biochemistry, Molecular, Cellular, and Developmental Biology (BMCDB) graduate group, University of California, Davis, CA 95616
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Devillers MM, Petit F, Giton F, François CM, Juricek L, Coumoul X, Magre S, Cohen-Tannoudji J, Guigon CJ. Age-dependent vulnerability of the ovary to AhR-mediated TCDD action before puberty: Evidence from mouse models. CHEMOSPHERE 2020; 258:127361. [PMID: 32947662 DOI: 10.1016/j.chemosphere.2020.127361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/03/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
In female mammals, puberty and fertility are regulated by the synthesis of estradiol (E2) by the ovaries at the infantile stage and at the approach of puberty, a process which may be affected by endocrine disrupting chemicals (EDC)s acting through the Aryl hydrocarbon receptor (AhR). However, there is no information on AhR-mediated regulation of ovarian estrogenic activity during these developmental periods. Here, we assessed in mouse models, the intrinsic and exogenous ligand-induced AhR action on E2 synthesis at the infantile stage (14 days postnatal (dpn)) and at the approach of puberty (28 dpn). Intrinsic AhR pathway became activated in the ovary at the approach of puberty, as suggested by the decreased intra-ovarian expression in prototypical and steroidogenesis-related AhR targets and E2 contents in Ahr knockout (Ahr-/-) mice versus Ahr+/+ mice exclusively at 28 dpn. Accordingly, AhR nuclear localization in granulosa cells, reflecting its activity in cells responsible for E2 synthesis, was much lower at 14 dpn than at 28 dpn in C57BL/6 mice. However, AhR signaling could be activated by exogenous ligands at both ages, as revealed by FICZ- and TCDD-induced Ahrr and Cyp1a1 expression in C57BL/6 mice. Nevertheless, TCDD impacted ovarian estrogenic activity only at 28 dpn. This age-related AhR action may be ligand-dependent, since FICZ had no effect on E2 synthesis at 28 dpn. In conclusion, AhR would not regulate ovarian estrogenic activity before the approach of puberty. Its activation by EDCs may be more detrimental to reproductive health at this stage than during infancy.
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Affiliation(s)
- Marie M Devillers
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, F-75013, Paris, France
| | - Florence Petit
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, F-75013, Paris, France
| | - Frank Giton
- AP-HP, Pôle biologie-Pathologie Henri Mondor, INSERM IMRB U955, Créteil, France
| | - Charlotte M François
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, F-75013, Paris, France
| | | | | | - Solange Magre
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, F-75013, Paris, France
| | | | - Céline J Guigon
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, F-75013, Paris, France.
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Choudhary M, Malek G. The Aryl Hydrocarbon Receptor: A Mediator and Potential Therapeutic Target for Ocular and Non-Ocular Neurodegenerative Diseases. Int J Mol Sci 2020; 21:ijms21186777. [PMID: 32947781 PMCID: PMC7555571 DOI: 10.3390/ijms21186777] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor, which senses environmental, dietary or metabolic signals to mount a transcriptional response, vital in health and disease. As environmental stimuli and metabolic products have been shown to impact the central nervous system (CNS), a burgeoning area of research has been on the role of the AHR in ocular and non-ocular neurodegenerative diseases. Herein, we summarize our current knowledge, of AHR-controlled cellular processes and their impact on regulating pathobiology of select ocular and neurodegenerative diseases. We catalogue animal models generated to study the role of the AHR in tissue homeostasis and disease pathogenesis. Finally, we discuss the potential of targeting the AHR pathway as a therapeutic strategy, in the context of the maladies of the eye and brain.
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Affiliation(s)
- Mayur Choudhary
- Department of Ophthalmology, Duke University School of Medicine, 2351 Erwin Road, P.O. Box 3802, Durham, NC 27705, USA
- Correspondence: (M.C.); (G.M.)
| | - Goldis Malek
- Department of Ophthalmology, Duke University School of Medicine, 2351 Erwin Road, P.O. Box 3802, Durham, NC 27705, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27705, USA
- Correspondence: (M.C.); (G.M.)
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Molecular Mechanisms Underlying the Cardiovascular Toxicity of Specific Uremic Solutes. Cells 2020; 9:cells9092024. [PMID: 32887404 PMCID: PMC7565564 DOI: 10.3390/cells9092024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/21/2020] [Accepted: 08/27/2020] [Indexed: 02/07/2023] Open
Abstract
Mounting evidence strongly suggests a causal link between chronic kidney disease (CKD) and cardiovascular disease (CVD). Compared with non-CKD patients, patients with CKD suffer disproportionately from CVD and derive suboptimal benefits from interventions targeting conventional CVD risk factors. Uremic toxins (UTs), whose plasma levels rapidly rise as CKD progresses, represent a unique risk factor in CKD, which has protean manifestations on CVD. Among the known UTs, tryptophan metabolites and trimethylamine N-oxide are well-established cardiovascular toxins. Their molecular mechanisms of effect warrant special consideration to draw translational value. This review surveys current knowledge on the effects of specific UTs on different pathways and cell functions that influence the integrity of cardiovascular health, with implication for CVD progression. The effect of UTs on cardiovascular health is an example of a paradigm in which a cascade of molecular and metabolic events induced by pathology in one organ in turn induces dysfunction in another organ. Deciphering the molecular mechanisms underlying such cross-organ pathologies will help uncover therapeutic targets to improve the management of CVD in patients with CKD.
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First evidence of aryl hydrocarbon receptor as a druggable target in hypertension induced by chronic intermittent hypoxia. Pharmacol Res 2020; 159:104869. [DOI: 10.1016/j.phrs.2020.104869] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/15/2020] [Accepted: 04/24/2020] [Indexed: 02/08/2023]
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Alternaria alternata Toxins Synergistically Activate the Aryl Hydrocarbon Receptor Pathway In Vitro. Biomolecules 2020; 10:biom10071018. [PMID: 32659980 PMCID: PMC7407958 DOI: 10.3390/biom10071018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 06/28/2020] [Accepted: 06/30/2020] [Indexed: 02/06/2023] Open
Abstract
Alternaria molds simultaneously produce a large variety of mycotoxins, of which several were previously reported to induce enzymes of phase I metabolism through aryl hydrocarbon receptor activation. Thus, we investigated the potential of naturally occurring Alternaria toxin mixtures to induce Cytochrome P450 (CYP) 1A1/1A2/1B1 activity. Two variants of an extract from cultured Alternaria alternata, as well as the toxins alternariol (AOH), alternariol monomethyl ether (AME), altertoxin I (ATX-I), and altertoxin II (ATX-II), were tested singularly and in binary mixtures applying the 7-ethoxy-resorufin-O-deethylase (EROD) assay in MCF-7 breast cancer cells. Sub-cytotoxic concentrations of the two toxin mixtures, as well as ATX-I, ATX-II and AOH, exhibited dose-dependent enhancements of CYP 1 activity. ATX-I and ATX-II interacted synergistically in this respect, demonstrating the two perylene quinones as major contributors to the extract’s potential. Binary mixtures between AOH and the two altertoxins respectively exhibited concentration-dependent antagonistic as well as synergistic combinatory effects. Notably, AME showed no efficacy towards EROD enzyme activity or impact on other toxins’ efficacy. Hence, this study provides insights into synergistic and other combinatory effects of Alternaria toxins in natural co-occurrence scenarios in the context of AhR signalling pathway activation in breast cancer cells.
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Postal BG, Ghezzal S, Aguanno D, André S, Garbin K, Genser L, Brot-Laroche E, Poitou C, Soula H, Leturque A, Clément K, Carrière V. AhR activation defends gut barrier integrity against damage occurring in obesity. Mol Metab 2020; 39:101007. [PMID: 32360426 PMCID: PMC7267728 DOI: 10.1016/j.molmet.2020.101007] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/03/2020] [Accepted: 04/22/2020] [Indexed: 12/24/2022] Open
Abstract
Objective Obesity is characterized by systemic and low-grade tissue inflammation. In the intestine, alteration of the intestinal barrier and accumulation of inflammatory cells in the epithelium are important contributors of gut inflammation. Recent studies demonstrated the role of the aryl hydrocarbon receptor (AhR) in the maintenance of immune cells at mucosal barrier sites. A wide range of ligands of external and local origin can activate this receptor. We studied the causal relationship between AhR activation and gut inflammation in obesity. Methods Jejunum samples from subjects with normal weight and severe obesity were phenotyped according to T lymphocyte infiltration in the epithelium from lamina propria and assayed for the mRNA level of AhR target genes. The effect of an AhR agonist was studied in mice and Caco-2/TC7 cells. AhR target gene expression, permeability to small molecules and ions, and location of cell-cell junction proteins were recorded under conditions of altered intestinal permeability. Results We showed that a low AhR tone correlated with a high inflammatory score in the intestinal epithelium in severe human obesity. Moreover, AhR activation protected junctional complexes in the intestinal epithelium in mice challenged by an oral lipid load. AhR ligands prevented chemically induced damage to barrier integrity and cytokine expression in Caco-2/TC7 cells. The PKC and p38MAPK signaling pathways were involved in this AhR action. Conclusions The results of these series of human, mouse, and cell culture experiments demonstrate the protective effect of AhR activation in the intestine targeting particularly tight junctions and cytokine expression. We propose that AhR constitutes a valuable target to protect intestinal functions in metabolic diseases, which can be achieved in the future via food or drug ligands. Intestinal inflammation in obese subjects correlates with low AhR activity. AhR activation protects intestinal epithelium from damages. AhR activation prevents cytokine induction in response to damages. Protective role of AhR activation targets junctional complexes. Protein kinases-dependent signaling pathways are involved in AhR action.
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Affiliation(s)
- Bárbara G Postal
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France; Saint-Antoine Research Center, Sorbonne University, INSERM, F-75012, Paris, France
| | - Sara Ghezzal
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France
| | - Doriane Aguanno
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France; Saint-Antoine Research Center, Sorbonne University, INSERM, F-75012, Paris, France; EPHE, PSL Research University, F-75006, Paris, France
| | - Sébastien André
- Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France
| | - Kevin Garbin
- CHIC Platform of Cordeliers Research Center, Sorbonne University, UPD Univ Paris 05, INSERM, F-75006, Paris, France
| | - Laurent Genser
- Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France
| | - Edith Brot-Laroche
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France
| | - Christine Poitou
- Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Nutrition Department, CRNH Ile de France, F-75013, Paris, France
| | - Hédi Soula
- Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France
| | - Armelle Leturque
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France; Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France
| | - Karine Clément
- Sorbonne University, INSERM, NutriOmics Research Unit Paris, F-75013, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Nutrition Department, CRNH Ile de France, F-75013, Paris, France
| | - Véronique Carrière
- Cordeliers Research Center, Sorbonne University, Paris Dauphine University 05, INSERM, CNRS, F-75006, Paris, France; Saint-Antoine Research Center, Sorbonne University, INSERM, F-75012, Paris, France.
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Vogel CFA, Van Winkle LS, Esser C, Haarmann-Stemmann T. The aryl hydrocarbon receptor as a target of environmental stressors - Implications for pollution mediated stress and inflammatory responses. Redox Biol 2020; 34:101530. [PMID: 32354640 PMCID: PMC7327980 DOI: 10.1016/j.redox.2020.101530] [Citation(s) in RCA: 206] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/20/2020] [Accepted: 03/31/2020] [Indexed: 02/08/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor regulating the expression of genes, for instance encoding the monooxygenases cytochrome P450 (CYP) 1A1 and CYP1A2, which are important enzymes in metabolism of xenobiotics. The AHR is activated upon binding of polycyclic aromatic hydrocarbons (PAHs), persistent organic pollutants (POPs), and related ubiquitous environmental chemicals, to mediate their biological and toxic effects. In addition, several endogenous and natural compounds can bind to AHR, thereby modulating a variety of physiological processes. In recent years, ambient particulate matter (PM) associated with traffic related air pollution (TRAP) has been found to contain significant amounts of PAHs. PM containing PAHs are of increasing concern as a class of agonists, which can activate the AHR. Several reports show that PM and AHR-mediated induction of CYP1A1 results in excessive generation of reactive oxygen species (ROS), causing oxidative stress. Furthermore, exposure to PM and PAHs induce inflammatory responses and may lead to chronic inflammatory diseases, including asthma, cardiovascular diseases, and increased cancer risk. In this review, we summarize findings showing the critical role that the AHR plays in mediating effects of environmental pollutants and stressors, which pose a risk of impacting the environment and human health. PAHs present on ambient air pollution particles are ligands of the cellular AHR. AHR-dependent induction of CYP1, AKR, NOX and COX-2 genes can be a source of ROS generation. AHR signaling and NRF2 signaling interact to regulate the expression of antioxidant genes. Air pollution and ROS can affect inflammation, which is partially triggered by AHR and associated immune responses. Skin, lung, and the cardiovascular system are major target sites for air pollution-induced inflammation.
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Affiliation(s)
- Christoph F A Vogel
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA, 95616, USA; Department of Environmental Toxicology, University of California, One Shields Avenue, Davis, CA, 95616, USA
| | - Laura S Van Winkle
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA, 95616, USA; School of Veterinary Medicine Department of Anatomy, University of California, One Shields Avenue, Davis, CA, 5616, USA
| | - Charlotte Esser
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
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Holme JA, Brinchmann BC, Le Ferrec E, Lagadic-Gossmann D, Øvrevik J. Combustion Particle-Induced Changes in Calcium Homeostasis: A Contributing Factor to Vascular Disease? Cardiovasc Toxicol 2020; 19:198-209. [PMID: 30955163 DOI: 10.1007/s12012-019-09518-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Air pollution is the leading environmental risk factor for disease and premature death in the world. This is mainly due to exposure to urban air particle matter (PM), in particular, fine and ultrafine combustion-derived particles (CDP) from traffic-related air pollution. PM and CDP, including particles from diesel exhaust (DEP), and cigarette smoke have been linked to various cardiovascular diseases (CVDs) including atherosclerosis, but the underlying cellular mechanisms remain unclear. Moreover, CDP typically consist of carbon cores with a complex mixture of organic chemicals such as polycyclic aromatic hydrocarbons (PAHs) adhered. The relative contribution of the carbon core and adhered soluble components to cardiovascular effects of CDP is still a matter of discussion. In the present review, we summarize evidence showing that CDP affects intracellular calcium regulation, and argue that CDP-induced impairment of normal calcium control may be a critical cellular event through which CDP exposure contributes to development or exacerbation of cardiovascular disease. Furthermore, we highlight in vitro research suggesting that adhered organic chemicals such as PAHs may be key drivers of these responses. CDP, extractable organic material from CDP (CDP-EOM), and PAHs may increase intracellular calcium levels by interacting with calcium channels like transient receptor potential (TRP) channels, and receptors such as G protein-coupled receptors (GPCR; e.g., beta-adrenergic receptors [βAR] and protease-activated receptor 2 [PAR-2]) and the aryl hydrocarbon receptor (AhR). Clarifying a possible role of calcium signaling and mechanisms involved may increase our understanding of how air pollution contributes to CVD.
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Affiliation(s)
- Jørn A Holme
- Department of Air Pollution and Noise, Division of Infection Control, Environment and Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, 0403, Oslo, Norway.
| | - Bendik C Brinchmann
- Department of Air Pollution and Noise, Division of Infection Control, Environment and Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, 0403, Oslo, Norway
| | - Eric Le Ferrec
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, 35000, Rennes, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé environnement et travail) - UMR_S 1085, 35000, Rennes, France
| | - Johan Øvrevik
- Department of Air Pollution and Noise, Division of Infection Control, Environment and Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, 0403, Oslo, Norway.
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway.
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Leblanc AF, Attignon EA, Distel E, Karakitsios SP, Sarigiannis DA, Bortoli S, Barouki R, Coumoul X, Aggerbeck M, Blanc EB. A dual mixture of persistent organic pollutants modifies carbohydrate metabolism in the human hepatic cell line HepaRG. ENVIRONMENTAL RESEARCH 2019; 178:108628. [PMID: 31520823 DOI: 10.1016/j.envres.2019.108628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 07/12/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Individuals as well as entire ecosystems are exposed to mixtures of Persistent Organic Pollutants (POPs). Previously, we showed, by a non-targeted approach, that the expression of several genes involved in carbohydrate metabolism was almost completely inhibited in the human hepatic cell line HepaRG following exposure to a mixture of the organochlorine insecticide alpha-endosulfan and 2,3,7,8 tetrachlorodibenzo-p-dioxin. In this European HEALS project, which studies the effects of the exposome on human health, we used a Physiologically Based BioKinetic model to compare the concentrations previously used in vitro with in vivo exposures for humans. We investigated the effects of these POPs on the levels of proteins, on glycogen content, glucose production and the oxidation of glucose into CO2 and correlated them to the expression of genes involved in carbohydrate metabolism as measured by RT-qPCR. Exposure to individual POPs and the mixture decreased the expression of the proteins investigated as well as glucose output (up to 82%), glucose oxidation (up to 29%) and glycogen content (up to 48%). siRNAs that specifically inhibit the expression of several xenobiotic receptors were used to assess receptor involvement in the effects of the POPs. In the HepaRG model, we demonstrate that the effects are mediated by the aryl hydrocarbon receptor and the estrogen receptor alpha, but not the pregnane X receptor or the constitutive androstane receptor. These results provide evidence that exposure to combinations of POPs, acting through different signaling pathways, may affect, more profoundly than single pollutants alone, metabolic pathways such as carbohydrate/energy metabolism and play a potential role in pollutant associated metabolic disorders.
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Affiliation(s)
- Alix F Leblanc
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Eléonore A Attignon
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Emilie Distel
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Spyros P Karakitsios
- Aristotle University of Thessaloniki, Department of Chemical Engineering, 54 124, Thessaloniki, Greece.
| | - Dimosthenis A Sarigiannis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, 54 124, Thessaloniki, Greece; Environmental Health Engineering, Institute for Advanced Study, Pavia, Italy.
| | - Sylvie Bortoli
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Robert Barouki
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France; AP-HP, Hôpital Necker-Enfants Malades, Service de Biochimie Métabolique, 149, rue de Sèvres, 75743, Paris, France.
| | - Xavier Coumoul
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Martine Aggerbeck
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
| | - Etienne B Blanc
- INSERM UMR-S 1124, Toxicité Environnementale, Cibles Thérapeutiques, Signalisation Cellulaire et Biomarqueurs, 45 rue des Saints Pères, 75006, Paris, France; Université de Paris, Université Paris Descartes, 45 rue des Saints Pères, 75006, Paris, France.
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50
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Aromatic hydrocarbon receptor regulates chicken cytochrome P450 1A5 transcription: A novel insight into T-2 toxin-induced gene expression and cytotoxicity in LMH cells. Biochem Pharmacol 2019; 168:319-329. [DOI: 10.1016/j.bcp.2019.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/23/2019] [Indexed: 12/17/2022]
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