1
|
Harris R, Karimi M. Dissecting the regulatory network of transcription factors in T cell phenotype/functioning during GVHD and GVT. Front Immunol 2023; 14:1194984. [PMID: 37441063 PMCID: PMC10333690 DOI: 10.3389/fimmu.2023.1194984] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Transcription factors play a major role in regulation and orchestration of immune responses. The immunological context of the response can alter the regulatory networks required for proper functioning. While these networks have been well-studied in canonical immune contexts like infection, the transcription factor landscape during alloactivation remains unclear. This review addresses how transcription factors contribute to the functioning of mature alloactivated T cells. This review will also examine how these factors form a regulatory network to control alloresponses, with a focus specifically on those factors expressed by and controlling activity of T cells of the various subsets involved in graft-versus-host disease (GVHD) and graft-versus-tumor (GVT) responses.
Collapse
Affiliation(s)
- Rebecca Harris
- Department of Microbiology and Immunology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | - Mobin Karimi
- Department of Microbiology and Immunology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| |
Collapse
|
2
|
Sakamoto R, Takada A, Yamakado S, Tsuge H, Ito E, Iwata M. Release from persistent T cell receptor engagement and blockade of aryl hydrocarbon receptor activity enhance IL-6-dependent mouse follicular helper T-like cell differentiation in vitro. PLoS One 2023; 18:e0287746. [PMID: 37352327 PMCID: PMC10289413 DOI: 10.1371/journal.pone.0287746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 06/13/2023] [Indexed: 06/25/2023] Open
Abstract
Follicular helper T (Tfh) cells are crucial for humoral immunity. Dysregulation of Tfh cell differentiation can cause infectious, allergic, and autoimmune diseases. To elucidate the molecular mechanisms underlying Tfh cell differentiation, we attempted to establish an in vitro mouse model of Tfh cell differentiation in the absence of other cell types. Various cytokines and cell surface molecules are suggested to contribute to the differentiation. We found that stimulating naïve CD4+ T cells with immobilized antibodies to CD3, ICOS, and LFA-1 in the presence of soluble anti-CD28 antibody, IL-6, and antibodies that block IL-2 signaling for 3 days induced the expression of Bcl6 and Rorc(γt), master regulator genes of Tfh and Th17 cells, respectively. TGF-β significantly enhanced cell proliferation and Bcl6 and Rorc(γt) expression. An additional 2 days of culture without immobilized antibodies selectively downregulated Rorc(γt) expression. These cells produced IL-21 and promoted B cells to produce IgG antibodies. Adding the aryl hydrocarbon receptor (AhR) antagonist CH-223191 to the T cell culture further downregulated Rorc(γt) expression without significantly affecting Bcl6 expression, and upregulated expression of a key Tfh marker, CXCR5. Although their CXCR5 expression levels were still not high, the CH-223191-treated cells showed chemotactic activity towards the CXCR5 ligand CXCL13. On the other hand, AhR agonists upregulated Rorc(γt) expression and downregulated CXCR5 expression. These findings suggest that AhR activity and the duration of T cell receptor stimulation contribute to regulating the balance between Tfh and Th17 cell differentiation. Although this in vitro system needs to be further improved, it may be useful for elucidating the mechanisms of Tfh cell differentiation as well as for screening physiological or pharmacological factors that affect Tfh cell differentiation including CXCR5 expression.
Collapse
Affiliation(s)
- Rei Sakamoto
- Department of Biology, Waseda University, TWIns, Shinjuku, Tokyo, Japan
| | - Ayumi Takada
- Department of Biology, Waseda University, TWIns, Shinjuku, Tokyo, Japan
| | | | - Haruki Tsuge
- Department of Biology, Waseda University, TWIns, Shinjuku, Tokyo, Japan
| | - Etsuro Ito
- Department of Biology, Waseda University, TWIns, Shinjuku, Tokyo, Japan
- Research Organization for Nano and Life Innovation, Waseda University, TWIns, Shinjuku, Tokyo, Japan
| | - Makoto Iwata
- Research Organization for Nano and Life Innovation, Waseda University, TWIns, Shinjuku, Tokyo, Japan
| |
Collapse
|
3
|
Souki R, Amossé J, Genêt V, Le Gall M, SaintPierre B, Letourneur F, Maître A, Demeilliers C, Le Ferrec E, Lagadic-Gossmann D, Podechard N, Sparfel L. Small RNA-sequencing reveals the involvement of microRNA-132 in benzo[a]pyrene-induced toxicity in primary human blood cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121653. [PMID: 37080521 DOI: 10.1016/j.envpol.2023.121653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/24/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely distributed environmental contaminants, triggering deleterious effects such as carcinogenicity and immunosuppression, and peripheral blood mononuclear cells (PBMCs) are among the main cell types targeted by these pollutants. In the present study, we sought to identify the expression profiles and function of miRNAs, gene regulators involved in major cellular processes recently linked to environmental pollutants, in PBMC-exposed to the prototypical PAH, benzo [a]pyrene (B [a]P). Using small RNA deep sequencing, we identified several B [a]P-responsive miRNAs. Bioinformatics analyses showed that their predicted targets could modulate biological processes relevant to cell death and survival. Further studies of the most highly induced miRNA, miR-132, showed that its up-regulation by B [a]P was time- and dose-dependent and required aryl hydrocarbon receptor (AhR) activation. By evaluating the role of miR-132 in B [a]P-induced cell death, we propose a mechanism linking B [a]P-induced miR-132 expression and cytochromes P-450 (CYPs) 1A1 and 1B1 mRNA levels, which could contribute to the apoptotic response of PBMCs. Altogether, this study increases our understanding of the roles of miRNAs induced by B [a]P and provides the basis for further investigations into the mechanisms of gene expression regulation by PAHs.
Collapse
Affiliation(s)
- Rima Souki
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Jérémy Amossé
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Valentine Genêt
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Morgane Le Gall
- Université Paris Cité, CNRS, INSERM, Institut Cochin, F-75014, Paris, France
| | | | - Franck Letourneur
- Université Paris Cité, CNRS, INSERM, Institut Cochin, F-75014, Paris, France
| | - Anne Maître
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, EPSP, 38000, Grenoble, France; Univ. Grenoble Alpes, CHU Grenoble Alpes, Laboratoire de Toxicologie Professionnelle et Environnementale, TIMC, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Christine Demeilliers
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, EPSP, 38000, Grenoble, France; Univ. Grenoble Alpes, CHU Grenoble Alpes, Laboratoire de Toxicologie Professionnelle et Environnementale, TIMC, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Eric Le Ferrec
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Normand Podechard
- 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.
| |
Collapse
|
4
|
Varela-Silva JA, Martínez-Leija ME, Orta-García ST, Pérez-Maldonado IN, López JA, Hernández-López H, González-Amaro R, Calderón-Aranda ES, Portales-Pérez DP, Salgado-Bustamante M. Differential Expression of AhR in Peripheral Mononuclear Cells in Response to Exposure to Polycyclic Aromatic Hydrocarbons in Mexican Women. TOXICS 2022; 11:28. [PMID: 36668754 PMCID: PMC9861257 DOI: 10.3390/toxics11010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
The exposure to air pollutants causes significant damage to health, and inefficient cooking and heating practices produce high levels of household air pollution, including a wide range of health-damaging pollutants such as fine particles, carbon monoxide and PAHs. The exposure to PAHs has been associated with the development of neoplastic processes, asthma, genotoxicity, altered neurodevelopment and inflammation. The effects on the induction of proinflammatory cytokines are attributed to the activation of AhR. However, the molecular mechanisms by which the PAHs produce proinflammatory effects are unknown. This study was performed on a group of 41 Mexican women from two rural communities who had stoves inside their houses, used wood as biomass fuel, and, thus, were vulnerable. According to the urinary 1-OHP concentration, the samples were stratified into two groups for determination of the levels of TNF-α, AhR, CYP1B1, miR-125b and miR-155 expression. Our results showed that the CYP1B1, TNF-α, miR-125b and miR-155 expression levels were not statistically different between women with the lowest and highest levels of 1-OHP. Interestingly, high levels of PAHs promoted augmented expression of AhR, which is a protein involved in the modulation of inflammatory pathways in vivo, suggesting that cell signaling of AhR may be implicated in several pathogenesis processes.
Collapse
Affiliation(s)
- José Antonio Varela-Silva
- Biochemistry Department, and Immunology, Department of Faculty of Medicine, UASLP, San Luis Potosí 78000, Mexico
| | | | - Sandra Teresa Orta-García
- Laboratory of Molecular Toxicology, Centro de Investigación Aplicada en, Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la, Ciencia y la Tecnología (CIACYT), UASLP, San Luis Potosí 78000, Mexico
| | - Ivan Nelinho Pérez-Maldonado
- Laboratory of Molecular Toxicology, Centro de Investigación Aplicada en, Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la, Ciencia y la Tecnología (CIACYT), UASLP, San Luis Potosí 78000, Mexico
| | - Jesús Adrián López
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98066, Mexico
| | - Hiram Hernández-López
- Academic Unit of Chemistry Sciences, Universidad Autónoma de Zacatecas, Zacatecas 98606, Mexico
| | - Roberto González-Amaro
- Laboratory of Immunology Cellular and molecular, Faculty of Chemistry, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78000, Mexico
| | - Emma S. Calderón-Aranda
- Toxicology Department, Centro de Investigación y Estudios Avanzados, IPN, México City 07360, Mexico
| | - Diana Patricia Portales-Pérez
- Laboratorio de microRNAs y Cáncer, Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Zacatecas 98066, Mexico
| | - Mariana Salgado-Bustamante
- Biochemistry Department, and Immunology, Department of Faculty of Medicine, UASLP, San Luis Potosí 78000, Mexico
| |
Collapse
|
5
|
Rodrigues de Souza I, Savio de Araujo-Souza P, Morais Leme D. Genetic variants affecting chemical mediated skin immunotoxicity. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2022; 25:43-95. [PMID: 34979876 DOI: 10.1080/10937404.2021.2013372] [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] [Indexed: 06/14/2023]
Abstract
The skin is an immune-competent organ and this function may be impaired by exposure to chemicals, which may ultimately result in immune-mediated dermal disorders. Interindividual variability to chemical-induced skin immune reactions is associated with intrinsic individual characteristics and their genomes. In the last 30-40 years, several genes influencing susceptibility to skin immune reactions were identified. The aim of this review is to provide information regarding common genetic variations affecting skin immunotoxicity. The polymorphisms selected for this review are related to xenobiotic-metabolizing enzymes (CYPA1 and CYPB1 genes), antioxidant defense (GSTM1, GSTT1, and GSTP1 genes), aryl hydrocarbon receptor signaling pathway (AHR and ARNT genes), skin barrier function transepidermal water loss (FLG, CASP14, and SPINK5 genes), inflammation (TNF, IL10, IL6, IL18, IL31, and TSLP genes), major histocompatibility complex (MHC) and neuroendocrine system peptides (CALCA, TRPV1, ACE genes). These genes present variants associated with skin immune responses and diseases, as well as variants associated with protecting skin immune homeostasis following chemical exposure. The molecular and association studies focusing on these genetic variants may elucidate their functional consequences and contribution in the susceptibility to skin immunotoxicity. Providing information on how genetic variations affect the skin immune system may reduce uncertainties in estimating chemical hazards/risks for human health in the future.
Collapse
Affiliation(s)
| | | | - Daniela Morais Leme
- Graduate Program in Genetics, Department of Genetics, Federal University of Paraná (UFPR), Curitiba, Brazil
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, Araraquara, Brazil
| |
Collapse
|
6
|
Van Laecke S, Van Damme K, Dendooven A. Immunosenescence: an unexplored role in glomerulonephritis. Clin Transl Immunology 2022; 11:e1427. [PMID: 36420421 PMCID: PMC9676375 DOI: 10.1002/cti2.1427] [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: 06/27/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 11/22/2022] Open
Abstract
Immunosenescence is a natural ageing phenomenon with alterations in innate and especially adaptive immunity and contributes to reduced antimicrobial defence and chronic low‐grade inflammation. This is mostly reflected by an increase in organ‐directed and/or circulating reactive and cytolytic terminally differentiated T cells that have lost their expression of the costimulatory receptor CD28. Apart from being induced by a genetic predisposition, ageing or viral infections (particularly cytomegalovirus infection), immunosenescence is accelerated in many inflammatory diseases and uraemia. This translates into an enhancement of vascular inflammation and cardiovascular disease varying from endothelial dysfunction to plaque rupture. Emerging data point to a mechanistic role of CD28null T cells in glomerulonephritis, where they initiate and propagate local inflammation in concordance with dendritic cells and macrophages. They are suitably equipped to escape immunological dampening by the absence of homing to lymph nodes, anti‐apoptotic properties and resistance to suppression by regulatory T cells. Early accumulation of senescent CD28null T cells precedes glomerular or vascular injury, and targeting these cells could open avenues for early treatment interventions that aim at abrogating a detrimental vicious cycle.
Collapse
Affiliation(s)
| | - Karel Van Damme
- Renal Division Ghent University Hospital Ghent Belgium
- Laboratory of Immunoregulation and Mucosal Immunology, Center for Inflammation Research VIB Center for Inflammation Research Ghent Belgium
| | | |
Collapse
|
7
|
Stülb H, Bachmann M, Gonther S, Mühl H. Acetaminophen-Induced Liver Injury Exposes Murine IL-22 as Sex-Related Gene Product. Int J Mol Sci 2021; 22:10623. [PMID: 34638962 PMCID: PMC8509061 DOI: 10.3390/ijms221910623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/13/2022] Open
Abstract
Gaining detailed knowledge about sex-related immunoregulation remains a crucial prerequisite for the development of adequate disease models and therapeutic strategies enabling personalized medicine. Here, the key parameter of the production of cytokines mediating disease resolution was investigated. Among these cytokines, STAT3-activating interleukin (IL)-22 is principally associated with recovery from tissue injury. By investigating paradigmatic acetaminophen-induced liver injury, we demonstrated that IL-22 expression is enhanced in female mice. Increased female IL-22 was confirmed at a cellular level using murine splenocytes stimulated by lipopolysaccharide or αCD3/CD28 to model innate or adaptive immunoactivation. Interestingly, testosterone or dihydrotestosterone reduced IL-22 production by female but not by male splenocytes. Mechanistic studies on PMA/PHA-stimulated T-cell-lymphoma EL-4 cells verified the capability of testosterone/dihydrotestosterone to reduce IL-22 production. Moreover, we demonstrated by chromatin immunoprecipitation that testosterone impairs binding of the aryl hydrocarbon receptor to xenobiotic responsive elements within the murine IL-22 promoter. Overall, female mice undergoing acute liver injury and cultured female splenocytes upon inflammatory activation display increased IL-22. This observation is likely related to the immunosuppressive effects of androgens in males. The data presented concur with more pronounced immunological alertness demonstrable in females, which may relate to the sex-specific course of some immunological disorders.
Collapse
Affiliation(s)
| | | | | | - Heiko Mühl
- Pharmazentrum Frankfurt/ZAFES, Institute of General Pharmacology and Toxicology, Faculty of Medicine, Goethe-University Frankfurt, D-60590 Frankfurt am Main, Germany; (H.S.); (M.B.); (S.G.)
| |
Collapse
|
8
|
Malaisé Y, Le Mentec H, Sparfel L, Guzylack-Piriou L. Differential influences of the BPA, BPS and BPF on in vitro IL-17 secretion by mouse and human T cells. Toxicol In Vitro 2020; 69:104993. [PMID: 32911021 DOI: 10.1016/j.tiv.2020.104993] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/02/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023]
Abstract
The endocrine disruptor and food contaminant bisphenol A (BPA) is frequently present in consumer plastics and can produce several adverse health effects participating in the development of inflammatory and autoimmune diseases. Regulatory restrictions have been established to prevent risks for human health, leading to the substitution of BPA by structural analogues, such as bisphenol S (BPS) and F (BPF). In this study, we aimed at comparing the in vitro impact of these bisphenols from 0.05 to 50,000 nM on Th17 differentiation, frequency and function in mouse systemic and intestinal immune T cells and in human blood T cells. This study reports the ability of these bisphenols, at low and environmentally relevant concentration, i.e, 0.05 nM, to increase significantly IL-17 production in mouse T cells but not in human T lymphocytes. The use of an aryl hydrocarbon receptor (AhR) specific inhibitor demonstrated its involvement in this bisphenol-induced IL-17 production. We also observed an increased IL-17 secretion by BPS and BPF, and not by BPA, in mouse naive T cells undergoing in vitro Th17 differentiation. In total, this study emphasizes the link between bisphenol exposures and the susceptibility to develop immune diseases, questioning thus the rational of their use to replace BPA.
Collapse
Affiliation(s)
- Yann Malaisé
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31300 Toulouse, France
| | - Hélène Le Mentec
- 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
| | - Laurence Guzylack-Piriou
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31300 Toulouse, France.
| |
Collapse
|
9
|
Al Zallouha M, Landkocz Y, Méausoone C, Ledoux F, Visade F, Cazier F, Martin PJ, Borgie M, Vitagliano JJ, Trémolet G, Cailliez JC, Gosset P, Courcot D, Billet S. A prospective pilot study of the T-lymphocyte response to fine particulate matter exposure. J Appl Toxicol 2020; 40:619-630. [PMID: 31975422 DOI: 10.1002/jat.3932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Exposure to air pollution is associated with increased morbidity and mortality. Once the fine atmospheric particulate matter (FP) is inhaled, some of its compounds can pass through the lungs and reach the bloodstream where they can come into contact with immune cells. Exposure to FP particularly affects sensitive populations such as the elderly. Aging affects the immune system, making the elderly more vulnerable. The project aims to determine the effects of FP exposure on human T cells while looking for biomarkers associated with exposure. Blood samples from 95 healthy subjects in three different age groups (20-30, 45-55 and 70-85 years) were collected to determine a potential age effect. T lymphocytes were isolated to be exposed ex vivo for 72 hours to 45 μg/mL of FP collected in Dunkirk and chemically characterized. Overexpression of the CYP1A1, CYP1B1 and CYP2S1 genes was therefore measured after exposure of the T cells to FP. These genes code for enzymes known to be involved in the metabolic activation of organic compounds such as polycyclic aromatic hydrocarbons detected in the FP sample. T-cell profiling allowed us to suggest a mixed T-helper 1/2 profile caused by exposure to FP. With regard to the influence of age, we have observed differences in the expression of certain genes, as well as an increase in interleukin-4 and -13 concentrations in the elderly. These results showed that exposure of T lymphocytes to FP causes effects on both transcriptomic and cytokine secretion levels.
Collapse
Affiliation(s)
- Margueritta Al Zallouha
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Yann Landkocz
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Clémence Méausoone
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Fréderic Ledoux
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Fabien Visade
- Service de gériatrie, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Fabrice Cazier
- Centre Commun de Mesures, Université Littoral Côte d'Opale, Dunkerque, France
| | - Perrine J Martin
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Mireille Borgie
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Jean-Jacques Vitagliano
- Direction de la Recherche Médicale, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Gauthier Trémolet
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | | | - Pierre Gosset
- Service d'Anatomie pathologique, Groupement des Hôpitaux de l'Institut Catholique de Lille, Lille, France
| | - Dominique Courcot
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| | - Sylvain Billet
- EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, Dunkerque, France
| |
Collapse
|
10
|
Xu EG, Lin N, Cheong RS, Ridsdale C, Tahara R, Du TY, Das D, Zhu J, Peña Silva L, Azimzada A, Larsson HCE, Tufenkji N. Artificial turf infill associated with systematic toxicity in an amniote vertebrate. Proc Natl Acad Sci U S A 2019; 116:25156-25161. [PMID: 31767765 PMCID: PMC6911194 DOI: 10.1073/pnas.1909886116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Artificial athletic turf containing crumb rubber (CR) from shredded tires is a growing environmental and public health concern. However, the associated health risk is unknown due to the lack of toxicity data for higher vertebrates. We evaluated the toxic effects of CR in a developing amniote vertebrate embryo. CR water leachate was administered to fertilized chicken eggs via different exposure routes, i.e., coating by dropping CR leachate on the eggshell; dipping the eggs into CR leachate; microinjecting CR leachate into the air cell or yolk. After 3 or 7 d of incubation, embryonic morphology, organ development, physiology, and molecular pathways were measured. The results showed that CR leachate injected into the yolk caused mild to severe developmental malformations, reduced growth, and specifically impaired the development of the brain and cardiovascular system, which were associated with gene dysregulation in aryl hydrocarbon receptor, stress-response, and thyroid hormone pathways. The observed systematic effects were probably due to a complex mixture of toxic chemicals leaching from CR, such as metals (e.g., Zn, Cr, Pb) and amines (e.g., benzothiazole). This study points to a need to closely examine the potential regulation of the use of CR on playgrounds and artificial fields.
Collapse
Affiliation(s)
- Elvis Genbo Xu
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada
| | - Nicholas Lin
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada
| | - Rachel S Cheong
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada
| | | | - Rui Tahara
- Redpath Museum, McGill University, Montréal, QC H3A 0C4, Canada
| | - Trina Y Du
- Redpath Museum, McGill University, Montréal, QC H3A 0C4, Canada
| | - Dharani Das
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Jiping Zhu
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Laura Peña Silva
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada
- Redpath Museum, McGill University, Montréal, QC H3A 0C4, Canada
| | - Agil Azimzada
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Hans C E Larsson
- Redpath Museum, McGill University, Montréal, QC H3A 0C4, Canada;
| | - Nathalie Tufenkji
- Department of Chemical Engineering, McGill University, Montréal, QC H3A 0C5, Canada;
| |
Collapse
|
11
|
Ishihara Y, Kado SY, Hoeper C, Harel S, Vogel CFA. Role of NF-kB RelB in Aryl Hydrocarbon Receptor-Mediated Ligand Specific Effects. Int J Mol Sci 2019; 20:E2652. [PMID: 31151139 PMCID: PMC6600526 DOI: 10.3390/ijms20112652] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/24/2019] [Accepted: 05/26/2019] [Indexed: 01/21/2023] Open
Abstract
Here, we investigate the role of RelB in the regulation of genes which were identified to be induced in an aryl hydrocarbon receptor (AhR)-dependent manner and critically involved in regulation of immune responses. We analyzed the expression of genes of the AhR gene battery, cytokines, and immune regulatory enzymes in bone marrow-derived macrophages (BMM) and thymus of B6 wildtype (wt) mice and RelB knockout (RelB-/-) mice after treatment with various AhR ligands. The 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-induced expression of indoleamine 2,3-dioxygenase 1 (IDO1) and IDO2 was significantly repressed in thymus of RelB-/- mice but not in BMM derived from RelB-/- mice. Interestingly, the induced and basal expression of the cytokines interleukin (IL)-17A, IL-22, and CCL20 required the functional expression of RelB. The RelB-dependent expression of CCL20 was induced by the AhR ligands TCDD and 6-formylindolo[3,2-b]carbazole (FICZ), whereas indole-3-carbinol (I3C) suppressed CCL20 in lipopolysaccharide (LPS)-activated wt BMM. The LPS-induced expression of IL-6 and IL-10 was enhanced by TCDD and FICZ, whereas I3C significantly suppressed these cytokines in BMM. The exposure to FICZ led to higher increases of IL-17A and IL-22 mRNA compared to the effect of TCDD or I3C in thymus of wt mice. On the other hand, TCDD was the strongest inducer of CYP1A1, AhR Repressor (AhRR), and IDO2. In summary, these findings provide evidence for the important role of RelB in the transcriptional regulation of cytokines and enzymes induced by AhR ligands.
Collapse
Affiliation(s)
- Yasuhiro Ishihara
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA 95616, USA.
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima 739-8521, Japan.
| | - Sarah Y Kado
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Christiane Hoeper
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Shelly Harel
- Center for Health and the Environment, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - 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.
| |
Collapse
|
12
|
Zamali I, Rekik R, Belhadj Hmida N, Ben Hmid A, Kammoun O, Barbouche M, Ben Ahmed M. An endogenous aryl hydrocarbon receptor ligand enhances de novo generation of regulatory T cells in humans. J Leukoc Biol 2018; 105:291-295. [DOI: 10.1002/jlb.2ab0518-205rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 11/13/2018] [Accepted: 11/23/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Imen Zamali
- Laboratory of Clinical ImmunologyInstitut Pasteur de Tunis Tunis Tunisia
- Faculté de Médecine de TunisUniversité de Tunis El Manar Tunis Tunisia
| | - Raja Rekik
- Laboratory of Clinical ImmunologyInstitut Pasteur de Tunis Tunis Tunisia
| | - Nadia Belhadj Hmida
- Laboratory of TransmissionControl and Immunobiology of Infection, LR11IPT02Institut Pasteur de Tunis Tunis Tunisia
| | - Ahlem Ben Hmid
- Laboratory of Clinical ImmunologyInstitut Pasteur de Tunis Tunis Tunisia
- Faculté de Médecine de TunisUniversité de Tunis El Manar Tunis Tunisia
| | - Ons Kammoun
- Laboratory of Clinical ImmunologyInstitut Pasteur de Tunis Tunis Tunisia
| | - Mohamed‐Ridha Barbouche
- Faculté de Médecine de TunisUniversité de Tunis El Manar Tunis Tunisia
- Laboratory of TransmissionControl and Immunobiology of Infection, LR11IPT02Institut Pasteur de Tunis Tunis Tunisia
| | - Mélika Ben Ahmed
- Laboratory of Clinical ImmunologyInstitut Pasteur de Tunis Tunis Tunisia
- Faculté de Médecine de TunisUniversité de Tunis El Manar Tunis Tunisia
- Laboratory of TransmissionControl and Immunobiology of Infection, LR11IPT02Institut Pasteur de Tunis Tunis Tunisia
| |
Collapse
|
13
|
Genome-Wide Transcriptional and Functional Analysis of Human T Lymphocytes Treated with Benzo[ α]pyrene. Int J Mol Sci 2018; 19:ijms19113626. [PMID: 30453624 PMCID: PMC6274903 DOI: 10.3390/ijms19113626] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 12/28/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely distributed environmental contaminants, known to affect T lymphocytes. However, the molecular targets and pathways involved in their immunotoxic effects in human T lymphocytes remain unknown. Here, we analyzed the gene expression profile of primary human T lymphocytes treated with the prototypical PAH, benzo[α]pyrene (B[α]P), using a microarray-based transcriptome analysis. After a 48 h exposure to B[α]P, we identified 158 genes differentially expressed in T lymphocytes, including not only genes well-known to be affected by PAHs such as the cytochromes P450 (CYP) 1A1 and 1B1, but also others not previously shown to be targeted by B[α]P such as genes encoding the gap junction beta (GJB)-2 and 6 proteins. Functional enrichment analysis revealed that these candidates were significantly associated with the aryl hydrocarbon (AhR) and interferon (IFN) signaling pathways; a marked alteration in T lymphocyte recruitment was also observed. Using functional tests in transwell migration experiments, B[α]P was then shown to significantly decrease the chemokine (C-X-C motif) ligand 12-induced chemotaxis and transendothelial migration of T lymphocytes. In total, this study opens the way to unsuspected responsive pathway of interest, i.e., T lymphocyte migration, thus providing a more thorough understanding of the molecular basis of the immunotoxicity of PAHs.
Collapse
|
14
|
Behr FM, Chuwonpad A, Stark R, van Gisbergen KPJM. Armed and Ready: Transcriptional Regulation of Tissue-Resident Memory CD8 T Cells. Front Immunol 2018; 9:1770. [PMID: 30131803 PMCID: PMC6090154 DOI: 10.3389/fimmu.2018.01770] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/17/2018] [Indexed: 11/13/2022] Open
Abstract
A fundamental benefit of immunological memory is the ability to respond in an enhanced manner upon secondary encounter with the same pathogen. Tissue-resident memory CD8 T (TRM) cells contribute to improved protection against reinfection through the generation of immediate effector responses at the site of pathogen entry. Key to the potential of TRM cells to develop rapid recall responses is their location within the epithelia of the skin, lungs, and intestines at prime entry sites of pathogens. TRM cells are among the first immune cells to respond to pathogens that have been previously encountered in an antigen-specific manner. Upon recognition of invading pathogens, TRM cells release IFN-γ and other pro-inflammatory cytokines and chemokines. These effector molecules activate the surrounding epithelial tissue and recruit other immune cells including natural killer (NK) cells, B cells, and circulating memory CD8 T cells to the site of infection. The repertoire of TRM effector functions also includes the direct lysis of infected cells through the release of cytotoxic molecules such as perforin and granzymes. The mechanisms enabling TRM cells to respond in such a rapid manner are gradually being uncovered. In this review, we will address the signals that instruct TRM generation and maintenance as well as the underlying transcriptional network that keeps TRM cells in a deployment-ready modus. Furthermore, we will discuss how TRM cells respond to reinfection of the tissue and how transcription factors may control immediate and proliferative TRM responses.
Collapse
Affiliation(s)
- Felix M Behr
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | - Ammarina Chuwonpad
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands
| | - Regina Stark
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | - Klaas P J M van Gisbergen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| |
Collapse
|
15
|
Shir A, Klein S, Sagiv-Barfi I, Geiger T, Zigler M, Langut Y, Edinger N, Levitzki A. S101, an Inhibitor of Proliferating T Cells, Rescues Mice From Superantigen-Induced Shock. J Infect Dis 2018; 217:288-297. [PMID: 29149330 DOI: 10.1093/infdis/jix576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 11/14/2017] [Indexed: 12/16/2022] Open
Abstract
Superantigens (SAgs) are extremely potent bacterial toxins, which evoke a virulent immune response, inducing nonspecific T-cell proliferation, rapid cytokine release, and lethal toxic shock, for which there is no effective treatment. We previously developed a small molecule, S101, which potently inhibits proliferating T cells. In a severe mouse model of toxic shock, a single injection of S101 given together with superantigen challenge rescued 100% of the mice. Even when given 2 hours after challenge, S101 rescued 40% of the mice. S101 targets the T-cell receptor, inflammatory response, and actin cytoskeleton pathways. S101 inhibits the aryl hydrocarbon receptor, a ligand-activated transcription factor that is involved in the differentiation of T-helper cells, especially Th17, and regulatory T cells. Our results provide the rationale for developing S101 to treat superantigen-induced toxic shock and other pathologies characterized by T-cell activation and proliferation.
Collapse
Affiliation(s)
- Alexei Shir
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Shoshana Klein
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Idit Sagiv-Barfi
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Tamar Geiger
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Maya Zigler
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Yael Langut
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Nufar Edinger
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| | - Alexander Levitzki
- Unit of Cellular Signaling, Silberman Life Sciences Institute, Hebrew University of Jerusalem, Safra Campus, Israel
| |
Collapse
|
16
|
Ligand-mediated cytoplasmic retention of the Ah receptor inhibits macrophage-mediated acute inflammatory responses. J Transl Med 2017; 97:1471-1487. [PMID: 28892097 PMCID: PMC5711556 DOI: 10.1038/labinvest.2017.92] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 07/12/2017] [Accepted: 07/18/2017] [Indexed: 12/25/2022] Open
Abstract
The Ah receptor (AHR) has been shown to exhibit both inflammatory and anti-inflammatory activity in a context-specific manner. In vivo macrophage-driven acute inflammation models were utilized here to test whether the selective Ah receptor modulator 1-allyl-7-trifluoromethyl-1H-indazol-3-yl]-4-methoxyphenol (SGA360) would reduce inflammation. Exposure to SGA360 was capable of significantly inhibiting lipopolysaccharide (LPS)-mediated endotoxic shock in a mouse model, both in terms of lethality and attenuating inflammatory signaling in tissues. Topical exposure to SGA360 was also able to mitigate joint edema in a monosodium urate (MSU) crystal gout mouse model. Inhibition was dependent on the expression of the high-affinity allelic AHR variant in both acute inflammation models. Upon peritoneal MSU crystal exposure SGA360 pretreatment inhibited neutrophil and macrophage migration into the peritoneum. RNA-seq analysis revealed that SGA360 attenuated the expression of numerous inflammatory genes and genes known to be directly regulated by AHR in thioglycolate-elicited primary peritoneal macrophages treated with LPS. In addition, expression of the high-affinity allelic AHR variant in cultured macrophages was necessary for SGA360-mediated repression of inflammatory gene expression. Mechanistic studies revealed that SGA360 failed to induce nuclear translocation of the AHR and actually enhanced cytoplasmic localization. LPS treatment of macrophages enhanced the occupancy of the AHR and p65 to the Ptgs2 promoter, whereas SGA360 attenuated occupancy. AHR ligand activity was detected in peritoneal exudates isolated from MSU-treated mice, thus suggesting that the anti-inflammatory activity of SGA360 is mediated at least in part through AHR antagonism of endogenous agonist activity. These results underscore an important role of the AHR in participating in acute inflammatory signaling and warrants further investigations into possible clinical applications.
Collapse
|
17
|
Cancer chemoprevention revisited: Cytochrome P450 family 1B1 as a target in the tumor and the microenvironment. Cancer Treat Rev 2017; 63:1-18. [PMID: 29197745 DOI: 10.1016/j.ctrv.2017.10.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 02/08/2023]
Abstract
Cancer chemoprevention is the use of synthetic, natural or biological agents to prevent or delay the development or progression of malignancies. Intriguingly, many phytochemicals with anti-inflammatory and anti-angiogenic effects, recently proposed as chemoprevention strategies, are inhibitors of Cytochrome P450 family 1B1 (CYP1B1), an enzyme overexpressed in a wide variety of tumors and associated with angiogenesis. In turn, pro-inflammatory cytokines were reported to boost CYP1B1 expression, suggesting a key role of CYP1B1 in a positive loop of inflammatory angiogenesis. Other well-known pro-tumorigenic activities of CYP1B1 rely on metabolic bioactivation of xenobiotics and steroid hormones into their carcinogenic derivatives. In contrast to initial in vitro observations, in vivo studies demonstrated a protecting role against cancer for the other CYP1 family members (CYP1A1 and CYP1A2), suggesting that the specificity of CYP1 family inhibitors should be carefully taken into account for developing potential chemoprevention strategies. Recent studies also proposed a role of CYP1B1 in multiple cell types found within the tumor microenvironment, including fibroblasts, endothelial and immune cells. Overall, our review of the current literature suggests a positive loop between inflammatory cytokines and CYP1B1, which in turn may play a key role in cancer angiogenesis, acting on both cancer cells and the tumor microenvironment. Strategies aiming at specific CYP1B1 inhibition in multiple cell types may translate into clinical chemoprevention and angioprevention approaches.
Collapse
|
18
|
Phalen LJ, Köllner B, Hogan NS, van den Heuvel MR. Transcriptional response in rainbow trout (Oncorhynchus mykiss) B cells and thrombocytes following in vivo exposure to benzo[a]pyrene. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 53:212-218. [PMID: 28662488 DOI: 10.1016/j.etap.2017.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 06/17/2017] [Indexed: 06/07/2023]
Abstract
Immune toxicity of polycyclic aromatic hydrocarbons (PAHs) in fishes has been frequently reported but the reasons for differential cell toxicity remains unclear. Rainbow trout were exposed in vivo with a single intraperitoneal injection of corn oil or 100mg/kg of the immunotoxic PAH benzo[a]pyrene (B[a]P) in corn oil. Leukocytes were harvested from head kidney, spleen and blood after 14days, the optimal time for B cell depletion found in a previous study. The mRNA expression of five cytochrome P450 (CYP) enzymes, the aryl hydrocarbon receptor (AhR), and an intrinsic pathway apoptosis checkpoint (p53) in B cells and thrombocytes were examined. Transcript levels were measured in immunomagnetically-isolated B cells and thrombocytes from those tissues as well as in liver as B cells had been previously shown to be responsive the BaP whereas thrombocytes were not. There was induction of CYP1A1 in liver, blood B cells, and blood and spleen thrombocytes; CYP1B1 in blood B cells, blood and spleen thrombocytes; CYP1A3 in liver, blood and spleen B cells, and blood thrombocytes; CYP1C1 in liver; and AhR in liver and spleen thrombocytes. There was no change in CYP1C2, or p53 mRNA levels across tissues or cell type. Induction in mRNA was observed 14 d after exposure, indicating a prolonged physiological effect of a single B[a]P injection. CYP1A1 and CYP1A3 were the most abundantly expressed CYP genes and CYP1B1 was generally least abundant. B[a]P-induced thrombocytes had a significantly different pattern of CYP expression than either liver or B cells. Given the importance of metabolites in the toxicity of PAHs, differences in CYP expression between tissues may explain differences in toxicity previously observed between B cells and thrombocytes.
Collapse
Affiliation(s)
- Laura J Phalen
- Canadian Rivers Institute, Department of Biology, University of Prince Edward Island, Charlottetown, Canada
| | | | - Natacha S Hogan
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, Canada; Toxicology Centre, University of Saskatchewan, Saskatoon, Canada
| | - Michael R van den Heuvel
- Canadian Rivers Institute, Department of Biology, University of Prince Edward Island, Charlottetown, Canada.
| |
Collapse
|
19
|
Liamin M, Boutet-Robinet E, Jamin EL, Fernier M, Khoury L, Kopp B, Le Ferrec E, Vignard J, Audebert M, Sparfel L. Benzo[a]pyrene-induced DNA damage associated with mutagenesis in primary human activated T lymphocytes. Biochem Pharmacol 2017; 137:113-124. [PMID: 28461126 DOI: 10.1016/j.bcp.2017.04.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/24/2017] [Indexed: 01/02/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), such as benzo[a]pyrene (B[a]P), are widely distributed environmental contaminants exerting toxic effects such as genotoxicity and carcinogenicity, mainly associated with aryl hydrocarbon receptor (AhR) activation and the subsequent induction of cytochromes P-450 (CYP) 1-metabolizing enzymes. We previously reported an up-regulation of AhR expression and activity in primary cultures of human T lymphocyte by a physiological activation. Despite the suggested link between exposure to PAHs and the risk of lymphoma, the potential of activated human T lymphocytes to metabolize AhR exogenous ligands such as B[a]P and produce DNA damage has not been investigated. In the present study, we characterized the genotoxic response of primary activated T lymphocytes to B[a]P. We demonstrated that, following T lymphocyte activation, B[a]P treatment triggers a marked increase in CYP1 expression and activity generating, upon metabolic activation, DNA adducts and double-strand breaks (DSBs) after a 48-h treatment. At this time point, B[a]P also induces a DNA damage response with ataxia telangiectasia mutated kinase activation, thus producing a p53-dependent response and T lymphocyte survival. B[a]P activates DSB repair by mobilizing homologous recombination machinery but also induces gene mutations in activated human T lymphocytes which could consequently drive a cancer process. In conclusion, primary cultures of activated human T lymphocytes represent a good model for studying genotoxic effects of environmental contaminants such as PAHs, and predicting human health issues.
Collapse
Affiliation(s)
- Marie Liamin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche en Santé, Environnement et Travail (IRSET - INSERM UMR 1085), 35000 Rennes, France; Université de Rennes 1, Faculté des Sciences Pharmaceutiques et Biologiques, structure fédérative de recherche, Biosit UMS CNRS 3480/US INSERM 018, 35043 Rennes, France
| | - Elisa Boutet-Robinet
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Emilien L Jamin
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Morgane Fernier
- Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche en Santé, Environnement et Travail (IRSET - INSERM UMR 1085), 35000 Rennes, France; Université de Rennes 1, Faculté des Sciences Pharmaceutiques et Biologiques, structure fédérative de recherche, Biosit UMS CNRS 3480/US INSERM 018, 35043 Rennes, France
| | - Laure Khoury
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Benjamin Kopp
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Eric Le Ferrec
- Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche en Santé, Environnement et Travail (IRSET - INSERM UMR 1085), 35000 Rennes, France; Université de Rennes 1, Faculté des Sciences Pharmaceutiques et Biologiques, structure fédérative de recherche, Biosit UMS CNRS 3480/US INSERM 018, 35043 Rennes, France
| | - Julien Vignard
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Marc Audebert
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Lydie Sparfel
- Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Recherche en Santé, Environnement et Travail (IRSET - INSERM UMR 1085), 35000 Rennes, France; Université de Rennes 1, Faculté des Sciences Pharmaceutiques et Biologiques, structure fédérative de recherche, Biosit UMS CNRS 3480/US INSERM 018, 35043 Rennes, France.
| |
Collapse
|
20
|
Effner R, Hiller J, Eyerich S, Traidl-Hoffmann C, Brockow K, Triggiani M, Behrendt H, Schmidt-Weber CB, Buters JTM. Cytochrome P450s in human immune cells regulate IL-22 and c-Kit via an AHR feedback loop. Sci Rep 2017; 7:44005. [PMID: 28276465 PMCID: PMC5343665 DOI: 10.1038/srep44005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 02/02/2017] [Indexed: 02/08/2023] Open
Abstract
The mechanisms how environmental compounds influence the human immune system are unknown. The environmentally sensitive transcription factor aryl hydrocarbon receptor (AHR) has immune-modulating functions and responds to small molecules. Cytochrome P4501 enzymes (CYP1) act downstream of the AHR and metabolize small molecules. However, it is currently unknown whether CYP1 activity is relevant for immune modulation. We studied the interdependence of CYP1 and AHR in human primary immune cells using pharmacological methods. CYP1 inhibition increased the expression levels of the stem cell factor receptor (c-Kit) and interleukin (IL)-22 but decreased IL-17. Single cell analyses showed that CYP1 inhibition especially promoted CD4+ helper T (Th) cells that co-express c-Kit and IL-22 simultaneously. The addition of an AHR antagonist reversed all these effects. In addition to T cells, we screened other human immune cells for CYP and found cell-specific fingerprints, suggesting that similar mechanisms are present in multiple immune cells. We describe a feedback loop yet unknown in human immune cells where CYP1 inhibition resulted in an altered AHR-dependent immune response. This mechanism relates CYP1-dependent metabolism of environmental small molecules to human immunity.
Collapse
Affiliation(s)
- Renate Effner
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
| | - Julia Hiller
- Chair and Institute of Environmental Medicine (UNIKA-T), Technische Universität München and Helmholtz Center Munich, Munich, Germany
| | - Stefanie Eyerich
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
| | - Claudia Traidl-Hoffmann
- Chair and Institute of Environmental Medicine (UNIKA-T), Technische Universität München and Helmholtz Center Munich, Munich, Germany
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Knut Brockow
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Salerno, Italy
| | - Heidrun Behrendt
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
| | - Carsten B. Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
| | - Jeroen T. M. Buters
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| |
Collapse
|
21
|
Merches K, Haarmann-Stemmann T, Weighardt H, Krutmann J, Esser C. AHR in the skin: From the mediator of chloracne to a therapeutic panacea? CURRENT OPINION IN TOXICOLOGY 2017. [DOI: 10.1016/j.cotox.2017.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
22
|
Bellamri M, Le Hegarat L, Vernhet L, Baffet G, Turesky RJ, Langouët S. Human T lymphocytes bioactivate heterocyclic aromatic amines by forming DNA adducts. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:656-667. [PMID: 27801952 PMCID: PMC5123841 DOI: 10.1002/em.22059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/29/2016] [Indexed: 05/06/2023]
Abstract
Heterocyclic aromatic amines (HAA) are formed in cooked meat, poultry and fish but also arise in tobacco smoke and exhaust gases. HAA are potential human carcinogens, which require metabolic activation to exert their genotoxicity. Human tissues can bioactivate HAA to produce reactive intermediates that bind to DNA. HAA DNA adduct formation occurs in human hepatocytes; however, the potential of HAA to form DNA adducts has not been investigated in human T lymphocytes. In this study, we investigated the ability of human T lymphocytes activated with PMA/Ionomycin or CD3/CD28 to express functional CYP1 activity and bioactivate three major HAA: 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx), and 2-amino-9H-pyrido[2,3-b]indole (AαC) to form DNA adducts. Adducts were measured by ultraperformance liquid chromatography-electrospray ionization/multistage scan mass spectrometry. The highest level of DNA adducts occurred for AαC (16 adducts per 109 nucleotides), followed by PhIP (9 adducts per 109 nucleotides). In contrast, DNA adducts formed from MeIQx and the structurally related aromatic amine 4-aminobiphenyl, a known human carcinogen, were below the limit of detection (< 3 adducts per 109 nucleotides). Moreover, we demonstrate that AαC is a potent inducer of CYP1A1 and CYP1B1 activity through a transcriptional mechanism involving the AhR pathway. Overall, our results highlight the capacity of activated human T lymphocytes to more efficiently bioactivate AαC to form DNA adducts than other prominent HAA or 4-ABP. Environ. Mol. Mutagen. 57:656-667, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Medjda Bellamri
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1085, Institut de Recherche en Santé Environnement et Travail (IRSET), Université de Rennes 1, UMS 3480 Biosit, F-35043 Rennes, France
- ANSES, French Agency for Food, Environmental and Occupational Health & Safety, Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Ludovic Le Hegarat
- ANSES, French Agency for Food, Environmental and Occupational Health & Safety, Fougères Laboratory, Toxicology of Contaminants Unit, Fougères, France
| | - Laurent Vernhet
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1085, Institut de Recherche en Santé Environnement et Travail (IRSET), Université de Rennes 1, UMS 3480 Biosit, F-35043 Rennes, France
| | - Georges Baffet
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1085, Institut de Recherche en Santé Environnement et Travail (IRSET), Université de Rennes 1, UMS 3480 Biosit, F-35043 Rennes, France
| | - Robert J Turesky
- Masonic Cancer Center and Department of Medicinal Chemistry, Cancer and Cardiology Research Building, University of Minnesota, 2231 6th Street, Minneapolis, Minnesota 55455, United States
| | - Sophie Langouët
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1085, Institut de Recherche en Santé Environnement et Travail (IRSET), Université de Rennes 1, UMS 3480 Biosit, F-35043 Rennes, France
- Correspondence should be addressed to: Dr. Sophie Langouët, Institut National de la Santé et de la Recherche Médicale (Inserm), U1085, Institut de Recherche en Santé Environnement et Travail (IRSET), Université de Rennes 1, 2 avenue du Pr L Bernard,, F-35043 Rennes, France. Tel: 02 23 23 48 06;
| |
Collapse
|
23
|
Abstract
The signaling pathway of the evolutionary old transcription factor AhR is inducible by a number of small molecular weight chemicals, including toxicants such as polycyclic aromatic hydrocarbons, bacterial toxic pigments, and physiological compounds such as tryptophan derivatives or dietary indoles. AhR activation is of immunological importance, but at the same time mediates toxicity of environmental pollutants, such as immunosuppression by dioxins. Measuring AhR activity and identification of ligands is thus of great interest for a variety of research fields. In this chapter, I briefly introduce the AhR signaling pathway, its role in immunology, and the tools and assays needed to analyze AhR signaling. Both are also needed when therapeutic applications are envisioned.
Collapse
Affiliation(s)
- Charlotte Esser
- Leibniz Research Institute for Environmental Medicine (IUF), Auf'm Hennekamp 50, 40225, Düsseldorf, Germany.
| |
Collapse
|
24
|
Liu DY, Zhao HM. Axis of immune response and energy metabolism mediated by Notch/mTOR signaling pathway: Pivotal mechanism of traditional Chinese medicine for preventing inflammatory bowel disease. Shijie Huaren Xiaohua Zazhi 2016; 24:2617-2624. [DOI: 10.11569/wcjd.v24.i17.2617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a kind of worldwide refractory disease with a high recurrence rate. However, traditional Chinese medicine for IBD is associated with a better therapeutic effect and a lower recurrence rate, although the mechanism is still unclear. It is known that the Notch signaling pathway interacts with mTOR and regulates the body's immune level and cell energy, which is closely related with morbidity of IBD. These hint that axis of immune response and energy metabolism mediated by the Notch/mTOR signaling pathway is possibly a pivotal mechanism for traditional Chinese medicine to prevent IBD.
Collapse
|
25
|
Dorgham K, Amoura Z, Parizot C, Arnaud L, Frances C, Pionneau C, Devilliers H, Pinto S, Zoorob R, Miyara M, Larsen M, Yssel H, Gorochov G, Mathian A. Ultraviolet light converts propranolol, a nonselective β-blocker and potential lupus-inducing drug, into a proinflammatory AhR ligand. Eur J Immunol 2015; 45:3174-87. [DOI: 10.1002/eji.201445144] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 06/30/2015] [Accepted: 09/07/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Karim Dorgham
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
| | - Zahir Amoura
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; institut E3M; Service de médecine interne 2; Centre de Référence National pour le Lupus et le Syndrome des Antiphospholipides; Paris France
| | - Christophe Parizot
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; Département d'immunologie; Paris France
| | - Laurent Arnaud
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; institut E3M; Service de médecine interne 2; Centre de Référence National pour le Lupus et le Syndrome des Antiphospholipides; Paris France
| | | | - Cédric Pionneau
- Sorbonne Universités, UPMC, Inserm UMS-29 Omique, Plateforme P3S, F-75013; Paris France
- Centre Hospitalier Universitaire de Dijon; Service de médecine interne 2 et centre d'investigation clinique; Dijon France
| | - Hervé Devilliers
- Centre Hospitalier Universitaire de Dijon; Service de médecine interne 2 et centre d'investigation clinique; Dijon France
| | - Sandra Pinto
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
| | - Rima Zoorob
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
| | - Makoto Miyara
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; institut E3M; Service de médecine interne 2; Centre de Référence National pour le Lupus et le Syndrome des Antiphospholipides; Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; Département d'immunologie; Paris France
| | - Martin Larsen
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
| | - Hans Yssel
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
| | - Guy Gorochov
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; Département d'immunologie; Paris France
| | - Alexis Mathian
- Sorbonne Universités; UPMC Univ Paris 06, Inserm UMRS1135; Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), 83 Bd de l'hôpital; F-75013, Paris France
- AP-HP; Groupement Hospitalier Pitié-Salpêtrière; institut E3M; Service de médecine interne 2; Centre de Référence National pour le Lupus et le Syndrome des Antiphospholipides; Paris France
| |
Collapse
|
26
|
Wang X, Li K, Liu L, Shi Q, Song P, Jian Z, Guo S, Wang G, Li C, Gao T. AHR promoter variant modulates its transcription and downstream effectors by allele-specific AHR-SP1 interaction functioning as a genetic marker for vitiligo. Sci Rep 2015; 5:13542. [PMID: 26370050 PMCID: PMC4570213 DOI: 10.1038/srep13542] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/30/2015] [Indexed: 12/28/2022] Open
Abstract
Vitiligo is an acquired depigmentation disorder largely caused by defective melanocyte- or autoimmunity-induced melanocyte destruction. The aryl hydrocarbon receptor (AHR) is essential for melanocyte homeostasis and immune process, and abnormal AHR was observed in vitiligo. We previously identified the T allele of AHR -129C > T variant as a protective factor against vitiligo. However, biological characterization underlying such effects is not fully certain, further validation by mechanistic research is warranted and was conducted in the present study. We showed that -129T allele promoted AHR transcriptional activity through facilitating its interaction with SP1 transcription factor (SP1) compared with -129C allele. We subsequently found reduced peripheral AHR and SP1 transcript expressions in vitiligo and a negative correlation of AHR level with disease duration. We also investigated AHR-related cytokines and observed increased serum TNF-α concentration and diminished serum levels of IL-10 and TGF-β1 in vitiligo. Further genetic analysis showed that -129T carriers possessed higher levels of AHR and IL-10 than -129C carriers. Therefore, our study indicates that the modulation of AHR transcription by a promoter variant has a profound influence on vitiligo, not only advancing our understanding on AHR function but also providing novel insight into the pathogenesis of degenerative or autoimmune diseases including vitiligo.
Collapse
Affiliation(s)
- Xiaowen Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Kai Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Ling Liu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Qiong Shi
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Pu Song
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Zhe Jian
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Sen Guo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| |
Collapse
|
27
|
Jackson DP, Joshi AD, Elferink CJ. Ah Receptor Pathway Intricacies; Signaling Through Diverse Protein Partners and DNA-Motifs. Toxicol Res (Camb) 2015; 4:1143-1158. [PMID: 26783425 PMCID: PMC4714567 DOI: 10.1039/c4tx00236a] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The Ah receptor is a transcription factor that modulates gene expression via interactions with multiple protein partners; these are reviewed, including the novel NC-XRE pathway involving KLF6.
Collapse
|
28
|
Locke WJ, Zotenko E, Stirzaker C, Robinson MD, Hinshelwood RA, Stone A, Reddel RR, Huschtscha LI, Clark SJ. Coordinated epigenetic remodelling of transcriptional networks occurs during early breast carcinogenesis. Clin Epigenetics 2015; 7:52. [PMID: 25960784 PMCID: PMC4424562 DOI: 10.1186/s13148-015-0086-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/16/2015] [Indexed: 01/17/2023] Open
Abstract
Background Dysregulation of the epigenome is a common event in malignancy; however, deciphering the earliest cancer-associated epigenetic events remains a challenge. Cancer epigenome studies to date have primarily utilised cancer cell lines or clinical samples, where it is difficult to identify the initial epigenetic lesions from those that occur over time. Here, we analysed the epigenome of human mammary epithelial cells (HMEC) and a matched variant cell population (vHMEC) that have spontaneously escaped senescence and undergone partial carcinogenic transformation. Using this model of basal-like breast carcinogenesis, we provide striking new insights into the very first epigenetic changes that occur during the initial stages of malignancy. Results The first phase of malignancy is defined by coordinated changes in the epigenome. At the chromatin level, this is embodied in long-range epigenetic deregulation, which involves the concomitant but atypical acquisition or loss of active and repressive histone modifications across large regional blocks. Changes in DNA methylation also occurs in a highly coordinated manner. We identified differentially methylated regions (DMRs) in the very earliest passages of vHMECs. Notably, we find that differential methylation targets loci regulated by key transcription factors including p53, AHR and E2F family members suggesting that epigenetic deregulation of transcription factor binding is a key event in breast carcinogenesis. Interestingly, DMRs identified in vHMEC are extensively methylated in breast cancer, with hypermethylation frequently encroaching into neighbouring regions. A subset of vHMEC DMRs exhibited a strong basal-like cancer specific hypermethylation. Conclusions Here, we generated epigenome-wide maps of the earliest phase of breast malignancy and show long-range epigenetic deregulation and coordinated DNA hypermethylation targets loci regulated by key transcription factors. These findings support a model where induction of breast cancer occurs through epigenetic disruption of transcription factor binding leading to deregulation of cancer-associated transcriptional networks. With their stability and very early occurrence, vHMECs hypermethylated loci could serve as excellent biomarkers for the initial detection of basal breast cancer. Electronic supplementary material The online version of this article (doi:10.1186/s13148-015-0086-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Warwick J Locke
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Level 5 deLacy Building, St Vincent's Hospital, Victoria Street, Darlinghurst, NSW 2010 Australia
| | - Elena Zotenko
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Level 5 deLacy Building, St Vincent's Hospital, Victoria Street, Darlinghurst, NSW 2010 Australia
| | - Clare Stirzaker
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Level 5 deLacy Building, St Vincent's Hospital, Victoria Street, Darlinghurst, NSW 2010 Australia
| | - Mark D Robinson
- Swiss Institute of Bioinformatics, University of Zurich, Zurich, and Institute of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057 Switzerland
| | - Rebecca A Hinshelwood
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; Sydney West Cancer Trials Centre, Crown Princess Mary Cancer Centre Westmead, Westmead Hospital, Hawkesbury Road, Westmead, NSW 2145 Australia
| | - Andrew Stone
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Level 5 deLacy Building, St Vincent's Hospital, Victoria Street, Darlinghurst, NSW 2010 Australia
| | - Roger R Reddel
- Cancer Research Unit, Children's Medical Research Institute, 2145 Hawkesbury Road, Westmead, NSW 2145 Australia ; Sydney Medical School, University of Sydney, Fisher Road, Sydney, NSW 2006 Australia
| | - Lily I Huschtscha
- Cancer Research Unit, Children's Medical Research Institute, 2145 Hawkesbury Road, Westmead, NSW 2145 Australia
| | - Susan J Clark
- Epigenetic Research Laboratory, Genomics and Epigenetic Division, The Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010 Australia ; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Level 5 deLacy Building, St Vincent's Hospital, Victoria Street, Darlinghurst, NSW 2010 Australia
| |
Collapse
|
29
|
Huang S, Shui X, He Y, Xue Y, Li J, Li G, Lei W, Chen C. AhR expression and polymorphisms are associated with risk of coronary arterial disease in Chinese population. Sci Rep 2015; 5:8022. [PMID: 25620626 PMCID: PMC4306136 DOI: 10.1038/srep08022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 12/29/2014] [Indexed: 11/15/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) mediates the control of environmental toxicity, and modulates the development and pathogenesis of the cardiovascular system. However, little is known about the role of AhR in coronary arterial disease (CAD) susceptibility. We therefore conducted a case-control study in a Chinese population, and assessed the potential association between AhR variants and CAD susceptibility. Compared with the controls, circulating AhR expression was found to be significantly increased in patients with CAD and its subtypes including ST-segment and non-ST-segment elevation myocardial infarction, and stable and unstable angina pectoris. Receiver operating characteristic (ROC) analysis to evaluate the effect of AhR on CAD progression showed it to be a potent biomarker for CAD. Genotype frequencies of AhR rs2066853 differed significantly between CAD and control subjects, while smoking and hyperlipidemia markedly promoted CAD risk relative to the AhR polymorphism. Moreover, a significant difference in AhR variant distribution was observed between the four CAD subtypes with different severities. The expression level and functional polymorphisms of circulating AhR may affect the susceptibility and progression of CAD in Chinese populations. This provides a novel view of the etiology and epidemiology of CAD, and will contribute to the diagnosis and therapy of this severe disease.
Collapse
Affiliation(s)
- Shian Huang
- 1] Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang 524001, China [2] Department of Cardiovascular Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| | - Xiaorong Shui
- Laboratory of Vascular Surgery, Guangdong Medical College, Zhanjiang 524001, China
| | - Yuan He
- Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang 524001, China
| | - Yiqiang Xue
- Department of Cardiovascular Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| | - Jianwen Li
- Laboratory of Vascular Surgery, Guangdong Medical College, Zhanjiang 524001, China
| | - Guoming Li
- Department of Cardiovascular Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| | - Wei Lei
- 1] Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang 524001, China [2] Department of Cardiovascular Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| | - Can Chen
- 1] Laboratory of Cardiovascular Diseases, Guangdong Medical College, Zhanjiang 524001, China [2] Department of Cardiovascular Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| |
Collapse
|
30
|
Eyerich S, Zielinski CE. Defining Th-cell subsets in a classical and tissue-specific manner: Examples from the skin. Eur J Immunol 2014; 44:3475-83. [DOI: 10.1002/eji.201444891] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 09/08/2014] [Accepted: 09/26/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Stefanie Eyerich
- ZAUM - Center of Allergy and Environment; Technische Universität and Helmholtz Center Munich; Member of the German Center for Lung Research (DZL); Munich Germany
| | - Christina E. Zielinski
- Department of Dermatology and Allergology; Charité-Universitätsmedizin Berlin; Berlin Germany
- Berlin-Brandenburg-Center for Regenerative Therapies; Charité-Universitätsmedizin Berlin; Berlin Germany
| |
Collapse
|
31
|
Gaspar-Ramírez O, Pérez-Vázquez FJ, Salgado-Bustamante M, González-Amaro R, Hernandez-Castro B, Pérez-Maldonado IN. DDE and PCB 153 independently induce aryl hydrocarbon receptor (AhR) expression in peripheral blood mononuclear cells. J Immunotoxicol 2014; 12:266-72. [DOI: 10.3109/1547691x.2014.960108] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
|