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Kimber I, Woeffen N, Sondenheimer K. Bisphenol A, T H17 cells, and allergy: a commentary. J Immunotoxicol 2022; 19:93-99. [PMID: 36070621 DOI: 10.1080/1547691x.2022.2113842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
There is a continuing interest in whether Bisphenol A (BPA) is able to cause adverse health effects through interaction with elements of the immune system. That interest has been fuelled further by the recent publication of a draft opinion on BPA prepared by the European Food Safety Authority (EFSA) Panel on Food Contact Materials, Enzymes and Processing Aids (CEP). This draft opinion judged effects on the immune system to be the most sensitive health outcome, and identified BPA-induced changes in the frequency of T-helper (TH)-17 cells in the spleens of mice as being the critical effect based on an association of these cells with inflammation. Based on these evaluations the CEP Panel recommended that a revised Tolerable Daily Intake (TDI) for BPA of 0.04 ng/kg bw/day should be adopted; representing a very substantial reduction (100,000-fold) compared with the existing TDI. The purpose of this commentary is to summarize briefly the role of TH17 cells in immune responses, and to review relevant literature regarding the influence of BPA on these cells, and on inflammatory responses in the lung and respiratory allergy. The conclusion drawn is that based on uncertainties about the effects of BPA on TH17 cells and lung inflammation in mice, the absence of consistent or persuasive evidence from human studies that exposure of BPA is associated with inflammation or allergy, and unresolved questions regarding the species selectivity of immune effects induced by BPA, it is inappropriate to adopt the revised TDI. Additional research is required to explore further the influence of BPA on the immune system and immune responses.
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Affiliation(s)
- Ian Kimber
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
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Faßbender S, Sondenheimer K, Majora M, Schindler J, Opitz FV, Pollet M, Haarmann-Stemmann T, Krutmann J, Weighardt H. Keratinocytes Counteract UVB-Induced Immunosuppression in Mice Via HIF-1a Signaling. J Invest Dermatol 2021; 142:1183-1193. [PMID: 34571000 DOI: 10.1016/j.jid.2021.07.185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/14/2021] [Accepted: 07/23/2021] [Indexed: 01/20/2023]
Abstract
The transcription factor Hypoxia-Inducible Factor-1alpha (HIF-1a) regulates cellular metabolism under hypoxia but also immune responses and UVB-induced skin reactions. In keratinocytes, HIF-1a is an environmental sensor orchestrating the adaptation to environmental changes. Here, we investigated the role of HIF-1a in keratinocytes for skin reactions to acute and chronic UVB exposure in mice. The function of HIF-1a in keratinocytes under UVB exposure was analyzed in conditional keratinocyte-specific HIF-1a-KO (in short "cKO") mice. cKO mice were hypersensitive to acute high-dose UVB irradiation compared to wildtype (WT), displaying increased cell death and delayed barrier repair. After chronic low-dose UVB treatment, cKO mice also had stronger epidermal damage but reduced infiltration of dermal macrophages and T helper cells compared to WT mice. Irradiated cKO mice revealed accumulation of regulatory lymphocytes in dorsal skin-draining lymph nodes compared to WT and unirradiated mice. This was reflected by augmented IL-10 release of lymph node cells and a weaker contact hypersensitivity reaction to DNFB in UVB-exposed cKO mice compared to WT and unirradiated controls. In summary, we found that keratinocyte-specific HIF-1a expression is crucial for adaptation to UVB exposure and inhibits the development of UVB-induced immunosuppression in mice. Therefore, HIF-1a signaling in keratinocytes could ameliorate photoaging-related skin disorders.
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Affiliation(s)
- Sonja Faßbender
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany.
| | - Kevin Sondenheimer
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marc Majora
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jennifer Schindler
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Friederike V Opitz
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marius Pollet
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Thomas Haarmann-Stemmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jean Krutmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Heike Weighardt
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
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Pollet M, Shaik S, Mescher M, Frauenstein K, Tigges J, Braun SA, Sondenheimer K, Kaveh M, Bruhs A, Meller S, Homey B, Schwarz A, Esser C, Douki T, Vogel CFA, Krutmann J, Haarmann-Stemmann T. Correction to: The AHR represses nucleotide excision repair and apoptosis and contributes to UV-induced skin carcinogenesis. Cell Death Differ 2019; 27:403. [PMID: 31641241 DOI: 10.1038/s41418-019-0440-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Marius Pollet
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Siraz Shaik
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Melina Mescher
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Katrin Frauenstein
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Julia Tigges
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Stephan A Braun
- Department of Dermatology, Medical Faculty, Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Kevin Sondenheimer
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Mana Kaveh
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Anika Bruhs
- Department of Dermatology and Allergology, Kiel University, 24105, Kiel, Germany
| | - Stephan Meller
- Department of Dermatology, Medical Faculty, Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Bernhard Homey
- Department of Dermatology, Medical Faculty, Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Agatha Schwarz
- Department of Dermatology and Allergology, Kiel University, 24105, Kiel, Germany
| | - Charlotte Esser
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Thierry Douki
- University Grenoble Alpes, INAC, CNRS, SyMMES UMR 3819, F-38000, Grenoble, France
| | - Christoph F A Vogel
- Department of Environmental Toxicology and Center for Health and the Environment, University of California, Davis, CA, 95616, USA
| | - Jean Krutmann
- IUF-Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
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Majora M, Sondenheimer K, Knechten M, Uthe I, Esser C, Schiavi A, Ventura N, Krutmann J. HDAC inhibition improves autophagic and lysosomal function to prevent loss of subcutaneous fat in a mouse model of Cockayne syndrome. Sci Transl Med 2019; 10:10/456/eaam7510. [PMID: 30158153 DOI: 10.1126/scitranslmed.aam7510] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 11/25/2017] [Accepted: 07/31/2018] [Indexed: 01/02/2023]
Abstract
Cockayne syndrome (CS), a hereditary form of premature aging predominantly caused by mutations in the csb gene, affects multiple organs including skin where it manifests with hypersensitivity toward ultraviolet (UV) radiation and loss of subcutaneous fat. There is no curative treatment for CS, and its pathogenesis is only partially understood. Originally considered for its role in DNA repair, Cockayne syndrome group B (CSB) protein most likely serves additional functions. Using CSB-deficient human fibroblasts, Caenorhabditiselegans, and mice, we show that CSB promotes acetylation of α-tubulin and thereby regulates autophagy. At the organ level, chronic exposure of csbm/m mice to UVA radiation caused a severe skin phenotype with loss of subcutaneous fat, inflammation, and fibrosis. These changes in skin tissue were associated with an accumulation of autophagic/lysosomal proteins and reduced amounts of acetylated α-tubulin. At the cellular level, we found that CSB directly interacts with the histone deacetylase 6 (HDAC6) and the α-tubulin acetyltransferase MEC-17. Upon UVA irradiation, CSB is recruited to the centrosome where it colocalizes with dynein and HDAC6. Administration of the pan-HDAC inhibitor SAHA (suberoylanilide hydroxamic acid) enhanced α-tubulin acetylation, improved autophagic function in CSB-deficient models from all three species, and rescued the skin phenotype in csbm/m mice. HDAC inhibition may thus represent a therapeutic option for CS.
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Affiliation(s)
- Marc Majora
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Kevin Sondenheimer
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Maren Knechten
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Ingo Uthe
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Charlotte Esser
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Alfonso Schiavi
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Natascia Ventura
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostics, University of Düsseldorf, Medical Faculty, 40225 Düsseldorf, Germany
| | - Jean Krutmann
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany. .,Medical Faculty, University of Düsseldorf, 40225 Düsseldorf, Germany
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Abstract
Due to changes in human lifestyle (expanded sunbathing, the use of solaria, etc.) and, most importantly, increasing lifetime and thus higher cumulative exposure to solar radiation, skin aging and skin cancer have become major health issues. As a consequence effective photoprotection is of outmost importance to humans. In this regard a lot has been learned in the past about the cellular and molecular basis underlying ultraviolet (UV) radiation-induced skin damage and, based on this knowledge, numerous skin protective approaches including organic and inorganic UV-filters, but also topically applicable antioxidants, DNA repair enzymes and compatible solutes as well as oral photoprotective strategies based on nutritional supplements have been developed. A new aspect is here that sun protection of human skin might even be possible after solar radiation-induced skin damage has occurred. A second, very important development was prompted by the discovery that also wavelengths beyond the UV spectrum can damage human skin. These include the blue light region of visible light (VIS) as well as the near infrared range (IRA) and corresponding sunprotection strategies have thus recently been or are still being developed. In this article we will provide a state of the art summary of these two novel developments and, at the end, we will also critically discuss strengths and weaknesses of the current attempts, which mainly focus on the prevention of skin damage by selected wavelengths but greatly ignore the possibility that wavelengths might interfere with each other. Such combined effects, however, need to be taken into account if photoprotection of human skin is intended to be global in nature.
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Affiliation(s)
- Kevin Sondenheimer
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Jean Krutmann
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.,Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
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Sondenheimer K, Neumann C, Majora M, Rapp A, Greinert R, Boukamp P, Krutmann J. 1155 Analysis of the interaction of different wavelengths present in natural sunlight. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Majora M, Sondenheimer K, Knechten M, Uthe I, Schiavi A, Ventura N, Krutmann J. 741 UV stress directs Cockayne Syndrome (CS) B protein to the centrosome to control α-tubulin acetylation and autophagy. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Majora M, Sondenheimer K, Schneider M, Uthe I, Schiavi A, Ventura N, Krutmann J. 565 Aberrant histone acetylation is linked to lysosomal and autophagic dysfunction in Cockayne syndrome (CS). J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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