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Sies H, Mailloux RJ, Jakob U. Fundamentals of redox regulation in biology. Nat Rev Mol Cell Biol 2024; 25:701-719. [PMID: 38689066 DOI: 10.1038/s41580-024-00730-2] [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] [Accepted: 03/26/2024] [Indexed: 05/02/2024]
Abstract
Oxidation-reduction (redox) reactions are central to the existence of life. Reactive species of oxygen, nitrogen and sulfur mediate redox control of a wide range of essential cellular processes. Yet, excessive levels of oxidants are associated with ageing and many diseases, including cardiological and neurodegenerative diseases, and cancer. Hence, maintaining the fine-tuned steady-state balance of reactive species production and removal is essential. Here, we discuss new insights into the dynamic maintenance of redox homeostasis (that is, redox homeodynamics) and the principles underlying biological redox organization, termed the 'redox code'. We survey how redox changes result in stress responses by hormesis mechanisms, and how the lifelong cumulative exposure to environmental agents, termed the 'exposome', is communicated to cells through redox signals. Better understanding of the molecular and cellular basis of redox biology will guide novel redox medicine approaches aimed at preventing and treating diseases associated with disturbed redox regulation.
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Affiliation(s)
- Helmut Sies
- Institute for Biochemistry and Molecular Biology I, Faculty of Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.
| | - Ryan J Mailloux
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada.
| | - Ursula Jakob
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA.
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2
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Bahman F, Choudhry K, Al-Rashed F, Al-Mulla F, Sindhu S, Ahmad R. Aryl hydrocarbon receptor: current perspectives on key signaling partners and immunoregulatory role in inflammatory diseases. Front Immunol 2024; 15:1421346. [PMID: 39211042 PMCID: PMC11358079 DOI: 10.3389/fimmu.2024.1421346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a versatile environmental sensor and transcription factor found throughout the body, responding to a wide range of small molecules originating from the environment, our diets, host microbiomes, and internal metabolic processes. Increasing evidence highlights AhR's role as a critical regulator of numerous biological functions, such as cellular differentiation, immune response, metabolism, and even tumor formation. Typically located in the cytoplasm, AhR moves to the nucleus upon activation by an agonist where it partners with either the aryl hydrocarbon receptor nuclear translocator (ARNT) or hypoxia-inducible factor 1β (HIF-1β). This complex then interacts with xenobiotic response elements (XREs) to control the expression of key genes. AhR is notably present in various crucial immune cells, and recent research underscores its significant impact on both innate and adaptive immunity. This review delves into the latest insights on AhR's structure, activating ligands, and its multifaceted roles. We explore the sophisticated molecular pathways through which AhR influences immune and lymphoid cells, emphasizing its emerging importance in managing inflammatory diseases. Furthermore, we discuss the exciting potential of developing targeted therapies that modulate AhR activity, opening new avenues for medical intervention in immune-related conditions.
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Affiliation(s)
- Fatemah Bahman
- Department of Immunology & Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Khubaib Choudhry
- Department of Human Biology, University of Toronto, Toronto, ON, Canada
| | - Fatema Al-Rashed
- Department of Immunology & Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Fahd Al-Mulla
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
| | - Sardar Sindhu
- Department of Immunology & Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
- Animal & Imaging Core Facilities, Dasman Diabetes Institute, Dasman, Kuwait
| | - Rasheed Ahmad
- Department of Immunology & Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
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Jia X, Long M, Pang Y, An H, Jin Y, Jiang J, Li Z, Wang B. Exposure biomarker profiles of polycyclic aromatic hydrocarbons based on a rat model using a versatile analytical framework. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:1268-1280. [PMID: 38817199 DOI: 10.1039/d4em00109e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic toxic pollutants. Parent PAHs (pPAHs) are mainly metabolized into mono-hydroxylated PAHs (OH-PAHs) after entering the human body. Until now, it is still an urgent need to select appropriate exposure biomarkers for PAHs and analyze them at the trace level. Based on gas chromatography coupled with triple-quadrupole tandem mass spectrometry, we have developed a versatile analytical method for the systemic analysis of pPAHs and OH-PAHs in routinely collected biological samples. This method was further applied to analyze plasma, hair and urine samples from 24 rats exposed to 13 pPAH congeners at four levels. The detection rate for pPAHs in three types of samples was 100%, except for dibenz(a,h)anthracene (DahA) in plasma, while the detection rate for OH-PAHs ranged from 25% to 100%. A significant linear relationship was observed between pPAH exposure levels and their corresponding OH-PAH levels in three different types of samples. It was found that each unit increase in pPAH exposure level was associated with an increase in OH-PAHs ranging from 0.03% (0.01-0.05%) to 5.27% (1.74-8.81%). Furthermore, significant positive correlations were found between any two types of samples for most OH-PAHs, but not observed for most pPAHs. The correlation patterns of 1-hydroxypyrene (1-OH-PYR) across three types of samples differed from other congeners. Strong correlations were identified between five types of hydroxyphenanthrene (OH-PHE) and pPAH exposure levels. In conclusion, OH-PAHs were more sensitive exposure biomarkers than pPAHs, particularly in hair and urine samples.
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Affiliation(s)
- Xiaoqian Jia
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
- Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing 100191, China
| | - Manman Long
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
- Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing 100191, China
| | - Yiming Pang
- Department of Epidemiology, School of Public Health and Management, Binzhou Medical University, Yantai 264003, China
| | - Hang An
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
- Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing 100191, China
| | - Yu Jin
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Cancer Epidemiology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Jianjun Jiang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, China
| | - Zhiwen Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
- Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing 100191, China
| | - Bin Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
- Institute of Reproductive and Child Health, Peking University/Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing 100191, China
- Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing 100191, China
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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Andress Huacachino A, Joo J, Narayanan N, Tehim A, Himes BE, Penning TM. Aldo-keto reductase (AKR) superfamily website and database: An update. Chem Biol Interact 2024; 398:111111. [PMID: 38878851 PMCID: PMC11232437 DOI: 10.1016/j.cbi.2024.111111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/09/2024] [Accepted: 06/13/2024] [Indexed: 06/23/2024]
Abstract
The aldo-keto reductase (AKR) superfamily is a large family of proteins found across the kingdoms of life. Shared features of the family include 1) structural similarities such as an (α/β)8-barrel structure, disordered loop structure, cofactor binding site, and a catalytic tetrad, and 2) the ability to catalyze the nicotinamide adenine dinucleotide (phosphate) reduced (NAD(P)H)-dependent reduction of a carbonyl group. A criteria of family membership is that the protein must have a measured function, and thus, genomic sequences suggesting the transcription of potential AKR proteins are considered pseudo-members until evidence of a functionally expressed protein is available. Currently, over 200 confirmed AKR superfamily members are reported to exist. A systematic nomenclature for the AKR superfamily exists to facilitate family and subfamily designations of the member to be communicated easily. Specifically, protein names include the root "AKR", followed by the family represented by an Arabic number, the subfamily-if one exists-represented by a letter, and finally, the individual member represented by an Arabic number. The AKR superfamily database has been dedicated to tracking and reporting the current knowledge of the AKRs since 1997, and the website was last updated in 2003. Here, we present an updated version of the website and database that were released in 2023. The database contains genetic, functional, and structural data drawn from various sources, while the website provides alignment information and family tree structure derived from bioinformatics analyses.
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Affiliation(s)
- Andrea Andress Huacachino
- Department of Biochemistry & Biophysics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA; Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA
| | - Jaehyun Joo
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA
| | - Nisha Narayanan
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA
| | - Anisha Tehim
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA
| | - Blanca E Himes
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA; Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA
| | - Trevor M Penning
- Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA; Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, 19104-6061, USA.
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Sondermann NC, Momin AA, Arold ST, Haarmann-Stemmann T. Benzotriazole UV stabilizers disrupt epidermal growth factor receptor signaling in human cells. ENVIRONMENT INTERNATIONAL 2024; 190:108886. [PMID: 39024829 DOI: 10.1016/j.envint.2024.108886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/20/2024]
Abstract
Phenolic benzotriazole UV stabilizers (BUV) are commonly used additives in synthetic polymeric products, which constantly leak into the environment. They are persistent and bioaccumulative, and have been detected not only in fish, birds, and sea mammals, but also in humans, including breast milk samples. Several authorities including the European Chemical Agency already consider some BUVs as Substances of Very High Concern in need of further information, e.g. mechanistical studies and biomonitoring. In this study, we are addressing this need by investigating the effect of several BUVs on the activity of the human epidermal growth factor receptor (EGFR), an important regulator of cellular processes that has recently been identified as a cell-surface receptor for environmental organic chemicals. By combining in silico docking, mutant analyses, receptor binding and internalization assays, we demonstrate that BUVs, particularly the chlorinated variants, bind to the extracellular domain of EGFR and thereby prevent the binding of growth factors. Accordingly, BUVs can inhibit EGFR downstream events, such as ERK1/2 phosphorylation and DNA synthesis, in human keratinocytes. Our data establish EGFR as a plasma membrane receptor for BUVs, offering novel mechanistic insights into the biological effects induced by these widespread and persistent chemicals. The findings of this study may not only improve hazard assessment for BUVs, but also contribute to the development of novel EGFR-targeting drugs.
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Affiliation(s)
- Natalie C Sondermann
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Afaque A Momin
- Biological and Environmental Science and Engineering Division, Center of Excellence on Smart Health, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Stefan T Arold
- Biological and Environmental Science and Engineering Division, Center of Excellence on Smart Health, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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Gu X, Li Z, Su J. Air pollution and skin diseases: A comprehensive evaluation of the associated mechanism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116429. [PMID: 38718731 DOI: 10.1016/j.ecoenv.2024.116429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/28/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024]
Abstract
Air pollutants deteriorate the survival environment and endanger human health around the world. A large number of studies have confirmed that air pollution jeopardizes multiple organs, such as the cardiovascular, respiratory, and central nervous systems. Skin is the largest organ and the first barrier that protects us from the outside world. Air pollutants such as particulate matter (PM), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs) will affect the structure and function of the skin and bring about the development of inflammatory skin diseases (atopic dermatitis (AD), psoriasis), skin accessory diseases (acne, alopecia), auto-immune skin diseases (cutaneous lupus erythematosus(CLE) scleroderma), and even skin tumors (melanoma, basal cell carcinoma (BCC), squamous-cell carcinoma (SCC)). Oxidative stress, skin barrier damage, microbiome dysbiosis, and skin inflammation are the pathogenesis of air pollution stimulation. In this review, we summarize the current evidence on the effects of air pollution on skin diseases and possible mechanisms to provide strategies for future research.
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Affiliation(s)
- Xiaoyu Gu
- Department of Dermatology | Hunan Engineering Research Center of Skin Health and Disease | Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha 410008, China; Furong Laboratory, Changsha, Hunan 410008, China
| | - Zhengrui Li
- XiangYa School of Medicine, Central South University, Changsha 410008, China
| | - Juan Su
- Department of Dermatology | Hunan Engineering Research Center of Skin Health and Disease | Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha 410008, China; Furong Laboratory, Changsha, Hunan 410008, China.
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Lu W, Cheng S, Xu J, Xiao Z, Yu Y, Xie Q, Fang Y, Chen R, Shen B, Xie Y, Ding X. Roles of AhR/CYP1s signaling pathway mediated ROS production in uremic cardiomyopathy. Toxicol Lett 2024; 396:81-93. [PMID: 38670245 DOI: 10.1016/j.toxlet.2024.04.005] [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: 10/16/2023] [Revised: 03/24/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
PURPOSE Uremic cardiomyopathy (UCM) is the leading cause of chronic kidney disease (CKD) related mortality. Uremic toxins including indoxyl sulfate (IS) play important role during the progression of UCM. This study was to explore the underlying mechanism of IS related myocardial injury. METHODS UCM rat model was established through five-sixths nephrectomy to evaluate its effects on blood pressure, cardiac impairment, and histological changes using echocardiography and histological analysis. Additionally, IS was administered to neonatal rat cardiomyocytes (NRCMs) and the human cardiomyocyte cell line AC16. DHE staining and peroxide-sensitive dye 2',7'-dichlorofluorescein diacetate (H2DCFDA) was conducted to assess the reactive oxygen species (ROS) production. Cardiomyocyte hypertrophy was estimated using wheat germ agglutinin (WGA) staining and immunofluorescence. Aryl hydrocarbon receptor (AhR) translocation was observed by immunofluorescence. The activation of AhR was evaluated by immunoblotting of cytochrome P450 1 s (CYP1s) and quantitative real-time PCR (RT-PCR) analysis of AHRR and PTGS2. Additionally, the pro-oxidative and pro-hypertrophic effects were evaluated using the AhR inhibitor CH-223191, the CYP1s inhibitor Alizarin and the ROS scavenger N-Acetylcysteine (NAC). RESULTS UCM rat model was successfully established, and cardiac hypertrophy, accompanied by increased blood pressure, and myocardial fibrosis. Further research confirmed the activation of the AhR pathway in UCM rats including AhR translocation and downstream protein CYP1s expression, accompanied with increasing ROS production detected by DHE staining. In vitro experiment demonstrated a translocation of AhR triggered by IS, leading to significant increase of downstream gene expression. Subsequently study indicated a close relationship between the production of ROS and the activation of AhR/CYP1s, which was effectively blocked by applying AhR inhibitor, CYP1s inhibitor and siRNA against AhR. Moreover, the inhibition of AhR/CYP1s/ROS pathway collectively blocked the pro-hypertrophic effect of IS-mediated cardiomyopathy. CONCLUSION This study provides evidence that the AhR/CYP1s pathway is activated in UCM rats, and this activation is correlated with the uremic toxin IS. In vitro studies indicate that IS can stimulate the AhR translocation in cardiomyocyte, triggering to the production of intracellular ROS via CYP1s. This process leads to prolonged oxidative stress stimulation and thus contributes to the progression of uremic toxin-mediated cardiomyopathy.
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Affiliation(s)
- Wei Lu
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China
| | - Shi Cheng
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China
| | - Jiarui Xu
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China
| | - Zilong Xiao
- Division of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yong Yu
- Division of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qiwen Xie
- Department of Nephrology, Xiamen Branch, Zhongshan hospital, Fudan University; Nephrology, China; Clinical Quality Control Center of Xiamen, No.668 Jinhu Road, Xiamen, Fujian 361006, China
| | - Yi Fang
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China
| | - Ruizhen Chen
- Division of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bo Shen
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China.
| | - Yeqing Xie
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China.
| | - Xiaoqiang Ding
- Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Medical Center of Kidney Disease, China; Kidney and Dialysis Institute of Shanghai, China; Kidney and Blood Purification Key Laboratory of Shanghai, China.
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Liu Y, Zhu R, Xu T, Chen Y, Ding Y, Zuo S, Xu L, Xie HQ, Zhao B. Potential AhR-independent mechanisms of 2,3,7,8-Tetrachlorodibenzo-p-dioxin inhibition of human glioblastoma A172 cells migration. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116172. [PMID: 38458072 DOI: 10.1016/j.ecoenv.2024.116172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024]
Abstract
The toxicity of 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is generally believed to be mediated by aryl hydrocarbon receptor (AhR), but some evidence suggests that the effects of TCDD can also be produced through AhR-independent mechanisms. In previous experiments, we found that mainly AhR-dependent mechanism was involved in the migration inhibition of glioblastoma U87 cells by TCDD. Due to the heterogeneity of glioblastomas, not all tumor cells have significant AhR expression. The effects and mechanisms of TCDD on the migration of glioblastomas with low AhR expression are still unclear. We employed a glioblastoma cell line A172 with low AhR expression as a model, using wound healing and Transwell® assay to detect the effect of TCDD on cell migration. We found that TCDD can inhibit the migration of A172 cells without activating AhR signaling pathway. Further, after being pre-treated with AhR antagonist CH223191, the inhibition of TCDD on A172 cells migration was not changed, indicating that the effect of TCDD on A172 cells is not dependent on AhR activation. By transcriptome sequencing analysis, we propose dysregulation of the expression of certain migration-related genes, such as IL6, IL1B, CXCL8, FOS, SYK, and PTGS2 involved in cytokines, MAPK, NF-κB, and IL-17 signaling pathways, as potential AhR-independent mechanisms that mediate the inhibition of TCDD migration in A172 cells.
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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; School of Public Health, Chongqing medical University, Chongqing, China
| | - Ruihong Zhu
- 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
| | - Tuan 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
| | - 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
| | - Yuan Ding
- School of Public Health, Chongqing medical University, Chongqing, China
| | - Sijia Zuo
- School of Public Health, Chongqing medical University, Chongqing, 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
| | - Heidi 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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Miret NV, Pontillo CA, Buján S, Chiappini FA, Randi AS. Mechanisms of breast cancer progression induced by environment-polluting aryl hydrocarbon receptor agonists. Biochem Pharmacol 2023; 216:115773. [PMID: 37659737 DOI: 10.1016/j.bcp.2023.115773] [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: 06/15/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Breast cancer is the most common invasive malignancy among women worldwide and constitutes a complex and heterogeneous disease. Interest has recently grown in the role of the aryl hydrocarbon receptor (AhR) in breast cancer and the contribution of environment-polluting AhR agonists. Here, we present a literature review addressing AhR ligands, including pesticides hexachlorobenzene and chlorpyrifos, polycyclic aromatic hydrocarbons, polychlorinated dibenzo-p-dioxins and dibenzofurans, polychlorinated biphenyls, parabens, and phthalates. The objectives of this review are a) to summarize recent original experimental, preclinical, and clinical studies on the biological mechanisms of AhR agonists which interfere with the regulation of breast endocrine functions, and b) to examine the biological effects of AhR ligands and their impact on breast cancer development and progression. We discuss biological mechanisms of action in cell viability, cell cycle, proliferation, epigenetic changes, epithelial to mesenchymal transition, and cell migration and invasion. In addition, we examine the effects of AhR ligands on angiogenic processes, metastasis, chemoresistance, and stem cell renewal. We conclude that exposure to AhR agonists stimulates pathways that promote breast cancer development and may contribute to tumor progression. Given the massive use of industrial and agricultural chemicals, ongoing evaluation of their effects in laboratory assays and preclinical studies in breast cancer at environmentally relevant doses is deemed essential. Likewise, awareness should be raised in the population regarding the most harmful toxicants to eradicate or minimize their use.
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Affiliation(s)
- Noelia V Miret
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Paraguay 2155, Piso 5, (CP 1121), Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Físico-Matemática, Laboratorio de Radioisótopos, Junín 954, 1er subsuelo (CP1113), Buenos Aires, Argentina.
| | - Carolina A Pontillo
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Paraguay 2155, Piso 5, (CP 1121), Buenos Aires, Argentina
| | - Sol Buján
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Paraguay 2155, Piso 5, (CP 1121), Buenos Aires, Argentina
| | - Florencia A Chiappini
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Paraguay 2155, Piso 5, (CP 1121), Buenos Aires, Argentina
| | - Andrea S Randi
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Paraguay 2155, Piso 5, (CP 1121), Buenos Aires, Argentina.
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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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11
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Vogeley C, Kress S, Lang D, Vogel CFA, Hartung F, Brenden H, Nakamura M, Grether-Beck S, Rossi A, Krutmann J, Schikowski T, Haarmann-Stemmann T. A gene variant of AKR1C3 contributes to interindividual susceptibilities to atopic dermatitis triggered by particulate air pollution. Allergy 2023; 78:1372-1375. [PMID: 36524327 PMCID: PMC10159942 DOI: 10.1111/all.15622] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/26/2022] [Accepted: 11/17/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Christian Vogeley
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Sara Kress
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Dieter Lang
- Bayer AG, Pharmaceuticals, Research Center, Wuppertal, Germany
| | - Christoph F. A. Vogel
- Center for Health and the Environment, University of California, Davis, California, USA
- Department of Environmental Toxicology, University of California, Davis, California, USA
| | - Frederick Hartung
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Heidi Brenden
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Motoki Nakamura
- Department of Environmental and Geriatric Dermatology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Susanne Grether-Beck
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Andrea Rossi
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Jean Krutmann
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
- Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Tamara Schikowski
- IUF – Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
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12
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Perdew GH, Esser C, Snyder M, Sherr DH, van den Bogaard EH, McGovern K, Fernández-Salguero PM, Coumoul X, Patterson AD. The Ah Receptor from Toxicity to Therapeutics: Report from the 5th AHR Meeting at Penn State University, USA, June 2022. Int J Mol Sci 2023; 24:5550. [PMID: 36982624 PMCID: PMC10058801 DOI: 10.3390/ijms24065550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a sensor of low-molecular-weight molecule signals that originate from environmental exposures, the microbiome, and host metabolism. Building upon initial studies examining anthropogenic chemical exposures, the list of AHR ligands of microbial, diet, and host metabolism origin continues to grow and has provided important clues as to the function of this enigmatic receptor. The AHR has now been shown to be directly involved in numerous biochemical pathways that influence host homeostasis, chronic disease development, and responses to toxic insults. As this field of study has continued to grow, it has become apparent that the AHR is an important novel target for cancer, metabolic diseases, skin conditions, and autoimmune disease. This meeting attempted to cover the scope of basic and applied research being performed to address possible applications of our basic knowledge of this receptor on therapeutic outcomes.
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Affiliation(s)
- Gary H. Perdew
- Department of Veterinary and Biomedical Sciences, Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA 16802, USA
| | - Charlotte Esser
- IUF-Leibniz Research Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Megan Snyder
- Department of Environmental Health, Boston University School of Public Health, 72 East Concord Street, Boston, MA 02118, USA
| | - David H. Sherr
- Department of Environmental Health, Boston University School of Public Health, 72 East Concord Street, Boston, MA 02118, USA
| | - Ellen H. van den Bogaard
- Department of Dermatology, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Karen McGovern
- Ikena Oncology, Inc., 645 Summer Street Suite 101, Boston, MA 02210, USA
| | - Pedro M. Fernández-Salguero
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Extremadura, Avenida de Elvas s/n, 06071 Badajoz, Spain
- Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), Avenida de la Investigación s/n, 06071 Badajoz, Spain
| | - Xavier Coumoul
- INSERM UMR-S1124, 45 rue des Saints-Peères, 75006 Paris, France
| | - Andrew D. Patterson
- Department of Veterinary and Biomedical Sciences, Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA 16802, USA
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13
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Ticiani E, Villegas JA, Murga-Zamalloa C, Veiga-Lopez A. Binding sites in the epidermal growth factor receptor are responsible for bisphenol S effects on trophoblast cell invasion. CHEMOSPHERE 2023; 318:137960. [PMID: 36716934 PMCID: PMC9993481 DOI: 10.1016/j.chemosphere.2023.137960] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 01/14/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Bisphenol S (BPS) is an endocrine disrupting chemical and the second most abundant bisphenol detected in humans. We have recently demonstrated that in utero exposure to BPS reduces human placenta cell fusion by interfering with epidermal growth factor (EGF)-dependent EGF receptor (EGFR) activation. Our previous work suggests that this occurs via binding of BPS to the extracellular domain of EGFR. However, whether BPS directly binds to EGFR has not been confirmed. We evaluated the binding ability of BPA, BPF and BPS to EGFR to determine whether EGFR binding is a unique attribute of BPS. To test these hypotheses, we first exposed HTR-8/SVneo cells to BPS, BPA, or BPF, with or without EGF. When co-exposed to EGF, BPS, but not BPA nor BPF, reduced EGFR phosphorylation by ∼60%, demonstrating that only BPS can interfere with EGF-dependent EGFR activation. As this indicates that BPS binding to the extracellular domain is responsible for its effect, we performed a computational search for putative binding sites on the EGFR extracellular domain, and performed ligand docking of BPS, BPA, and BPF at these sites. We identified three sites where polar interactions between positively charged residues and the sulfonyl group of BPS could lead binding selectivity over BPA and BPF. To test whether EGFR mutations at the predicted BPS binding sites (Arg255, Lys454, and Arg297) could prevent BPS's interference on EGFR activation, mutations for each EGFR target amino acids (R255A, R297A, and K454A) were introduced. For variants with R297A or K454A mutations, BPS did not affect EGF-mediated EGFR phosphorylation or EGFR-mediated cell invasion, suggesting that these residues are needed for the BPS antagonism effect on EGFR. In conclusion, BPS, but not BPA or BPF, interferes with EGFR-mediated trophoblast cell functions through binding at Arg297 and Lys454 amino acid residues in the extracellular domain of EGFR.
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Affiliation(s)
- Elvis Ticiani
- Department of Pathology, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - José A Villegas
- Department of Pharmaceutical Sciences, University of Illinois Chicago, Chicago, IL, 60612, USA
| | | | - Almudena Veiga-Lopez
- Department of Pathology, University of Illinois Chicago, Chicago, IL, 60612, USA.
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14
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Influence of aldo-keto reductase 1C3 polymorphisms in early-onset female psoriasis patients. Sci Rep 2023; 13:3280. [PMID: 36841845 PMCID: PMC9968313 DOI: 10.1038/s41598-023-30464-8] [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: 11/11/2022] [Accepted: 02/23/2023] [Indexed: 02/27/2023] Open
Abstract
The principal pathology of psoriasis is impaired skin barrier function, epidermal thickening, and granular layer loss. Exposure to extrinsic factors such as tobacco smoke and air pollutants is associated with the development of psoriasis. Aryl hydrocarbon receptors (AHRs) are activated by extrinsic factors associated with the development of psoriasis and act as transcriptional regulators. Expression of aldo-keto reductase (AKR) 1C3 in the epidermal spinous layer regulates epidermal keratinocyte differentiation via the AHR signaling pathway. We investigated whether single nucleotide polymorphisms (SNPs) in AKR1C3 are associated with the pathogenesis of psoriasis. The proportions of rs12529 G/C, C/C variants, and rs12387 A/A, A/G variants were twofold higher in Japanese psoriasis patients (n = 231) compared with a Japanese healthy cohort. The SNPs were significantly more common than the majority variants in female patients with disease onset ≤ 22 years of age. Patients with rs12529 G > C and rs12387 A > G SNPs exhibited significantly lower AKR1C3 expression and higher expression of late differentiation markers. In conclusion, AKR1C3 downregulation caused by rs12529 G > C and rs12387 A > G SNPs in the epidermis induces abnormal early differentiation of keratinocytes and skin barrier dysfunction, which may contribute to the genetic pathogenesis of psoriasis in young females.
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15
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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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16
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Sondermann NC, Faßbender S, Hartung F, Hätälä AM, Rolfes KM, Vogel CFA, Haarmann-Stemmann T. Functions of the aryl hydrocarbon receptor (AHR) beyond the canonical AHR/ARNT signaling pathway. Biochem Pharmacol 2023; 208:115371. [PMID: 36528068 PMCID: PMC9884176 DOI: 10.1016/j.bcp.2022.115371] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022]
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-dependent transcription factor regulating adaptive and maladaptive responses toward exogenous and endogenous signals. Research from various biomedical disciplines has provided compelling evidence that the AHR is critically involved in the pathogenesis of a variety of diseases and disorders, including autoimmunity, inflammatory diseases, endocrine disruption, premature aging and cancer. Accordingly, AHR is considered an attractive target for the development of novel preventive and therapeutic measures. However, the ligand-based targeting of AHR is considerably complicated by the fact that the receptor does not always follow the beaten track, i.e. the canonical AHR/ARNT signaling pathway. Instead, AHR might team up with other transcription factors and signaling molecules to shape gene expression patterns and associated physiological or pathophysiological functions in a ligand-, cell- and micromilieu-dependent manner. Herein, we provide an overview about some of the most important non-canonical functions of AHR, including crosstalk with major signaling pathways involved in controlling cell fate and function, immune responses, adaptation to low oxygen levels and oxidative stress, ubiquitination and proteasomal degradation. Further research on these diverse and exciting yet often ambivalent facets of AHR biology is urgently needed in order to exploit the full potential of AHR modulation for disease prevention and treatment.
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Affiliation(s)
- Natalie C Sondermann
- IUF - Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Sonja Faßbender
- IUF - Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Frederick Hartung
- IUF - Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Anna M Hätälä
- IUF - Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Katharina M Rolfes
- IUF - Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Christoph F A Vogel
- Department of Environmental Toxicology and Center for Health and the Environment, University of California, Davis, CA 95616, USA
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17
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Stermann T, Nguyen T, Stahlmecke B, Todea AM, Woeste S, Hacheney I, Krutmann J, Unfried K, Schins RPF, Rossi A. Carbon nanoparticles adversely affect CFTR expression and toxicologically relevant pathways. Sci Rep 2022; 12:14255. [PMID: 35995803 PMCID: PMC9395428 DOI: 10.1038/s41598-022-18098-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 08/05/2022] [Indexed: 11/08/2022] Open
Abstract
Cystic fibrosis is an autosomal recessive disorder caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) that can lead to terminal respiratory failure. Ultrafine carbonaceous particles, which are ubiquitous in ambient urban and indoor air, are increasingly considered as major contributors to the global health burden of air pollution. However, their effects on the expression of CFTR and associated genes in lung epithelial cells have not yet been investigated. We therefore evaluated the effects of carbon nanoparticles (CNP), generated by spark-ablation, on the human bronchial epithelial cell line 16HBE14o- at air-liquid interface (ALI) culture conditions. The ALI-cultured cells exhibited epithelial barrier integrity and increased CFTR expression. Following a 4-h exposure to CNP, the cells exhibited a decreased barrier integrity, as well as decreased expression of CFTR transcript and protein levels. Furthermore, transcriptomic analysis revealed that the CNP-exposed cells showed signs of oxidative stress, apoptosis and DNA damage. In conclusion, this study describes spark-ablated carbon nanoparticles in a realistic exposure of aerosols to decrease CFTR expression accompanied by transcriptomic signs of oxidative stress, apoptosis and DNA damage.
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Affiliation(s)
- Torben Stermann
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | - Thach Nguyen
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | | | - Ana Maria Todea
- IUTA - Institut für Energie- und Umwelttechnik e.V., Duisburg, Germany
| | - Selina Woeste
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | - Inken Hacheney
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | - Jean Krutmann
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
- Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Klaus Unfried
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | - Roel P F Schins
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany
| | - Andrea Rossi
- IUF - Leibniz-Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, Duesseldorf, Germany.
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18
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Rehman ZU, Momin AA, Aldehaiman A, Irum T, Grünberg R, Arold ST. The exceptionally efficient quorum quenching enzyme LrsL suppresses Pseudomonas aeruginosa biofilm production. Front Microbiol 2022; 13:977673. [PMID: 36071959 PMCID: PMC9441902 DOI: 10.3389/fmicb.2022.977673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
Quorum quenching (QQ) is the enzymatic degradation of molecules used by bacteria for synchronizing their behavior within communities. QQ has attracted wide attention due to its potential to inhibit biofilm formation and suppress the production of virulence factors. Through its capacity to limit biofouling and infections, QQ has applications in water treatment, aquaculture, and healthcare. Several different QQ enzymes have been described; however, they often lack the high stability and catalytic efficiency required for industrial applications. Previously, we identified genes from genome sequences of Red Sea sediment bacteria encoding potential QQ enzymes. In this study, we report that one of them, named LrsL, is a metallo-β-lactamase superfamily QQ enzyme with outstanding catalytic features. X-ray crystallography shows that LrsL is a zinc-binding dimer. LrsL has an unusually hydrophobic substrate binding pocket that can accommodate a broad range of acyl-homoserine lactones (AHLs) with exceptionally high affinity. In vitro, LrsL achieves the highest catalytic efficiency reported thus far for any QQ enzyme with a Kcat/KM of 3 × 107. LrsL effectively inhibited Pseudomonas aeruginosa biofilm formation without affecting bacterial growth. Furthermore, LrsL suppressed the production of exopolysaccharides required for biofilm production. These features, and its capacity to regain its function after prolonged heat denaturation, identify LrsL as a robust and unusually efficient QQ enzyme for clinical and industrial applications.
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Affiliation(s)
- Zahid Ur Rehman
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Environmental Science Program, Water Desalination and Reuse Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- *Correspondence: Zahid Ur Rehman, ; Stefan T. Arold,
| | - Afaque A. Momin
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Biology Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Abdullah Aldehaiman
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Biology Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Tayyaba Irum
- Services Hospital, Services Institute of Medical Sciences, Lahore, Pakistan
| | - Raik Grünberg
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Biology Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Stefan T. Arold
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Biology Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Centre de Biologie Structurale (CBS), INSERM, CNRS, Université de Montpellier, Montpellier, France
- *Correspondence: Zahid Ur Rehman, ; Stefan T. Arold,
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19
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Vogeley C, Rolfes KM, Krutmann J, Haarmann-Stemmann T. The Aryl Hydrocarbon Receptor in the Pathogenesis of Environmentally-Induced Squamous Cell Carcinomas of the Skin. Front Oncol 2022; 12:841721. [PMID: 35311158 PMCID: PMC8927079 DOI: 10.3389/fonc.2022.841721] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/09/2022] [Indexed: 01/05/2023] Open
Abstract
Cutaneous squamous cell carcinoma (SCC) is one of the most frequent malignancies in humans and academia as well as public authorities expect a further increase of its incidence in the next years. The major risk factor for the development of SCC of the general population is the repeated and unprotected exposure to ultraviolet (UV) radiation. Another important risk factor, in particular with regards to occupational settings, is the chronic exposure to polycyclic aromatic hydrocarbons (PAH) which are formed during incomplete combustion of organic material and thus can be found in coal tar, creosote, bitumen and related working materials. Importantly, both exposomal factors unleash their carcinogenic potential, at least to some extent, by activating the aryl hydrocarbon receptor (AHR). The AHR is a ligand-dependent transcription factor and key regulator in xenobiotic metabolism and immunity. The AHR is expressed in all cutaneous cell-types investigated so far and maintains skin integrity. We and others have reported that in response to a chronic exposure to environmental stressors, in particular UV radiation and PAHs, an activation of AHR and downstream signaling pathways critically contributes to the development of SCC. Here, we summarize the current knowledge about AHR's role in skin carcinogenesis and focus on its impact on defense mechanisms, such as DNA repair, apoptosis and anti-tumor immune responses. In addition, we discuss the possible consequences of a simultaneous exposure to different AHR-stimulating environmental factors for the development of cutaneous SCC.
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Affiliation(s)
- Christian Vogeley
- IUF - Leibniz-Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Katharina M Rolfes
- IUF - Leibniz-Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Jean Krutmann
- IUF - Leibniz-Research Institute for Environmental Medicine, Düsseldorf, Germany
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