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Zuo Z, He S, Qiu Y, Guo R, He Y, Jiao C, Xia Y, Liu W, Luan C, Guo W. Salvianolic acid A prevents UV-induced skin damage by inhibiting the cGAS-STING pathway. Int Immunopharmacol 2024; 132:111971. [PMID: 38565040 DOI: 10.1016/j.intimp.2024.111971] [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: 12/11/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
DNA damage resulting from UV irradiation on the skin has been extensively documented in numerous studies. In our prior investigations, we demonstrated that UVB-induced DNA breakage from keratinocytes can activate the cGAS-STING pathway in macrophages. The cGAS-STING signaling pathway serves as the principal effector for detecting and responding to abnormal double-stranded DNA in the cytoplasm. Expanding on our previous findings, we have further validated that STING knockout significantly diminishes UVB-induced skin damage, emphasizing the critical role of cGAS-STING activation in this context. Salvianolic acid A, a principal active constituent of Salvia miltiorrhiza Burge, has been extensively studied for its therapeutic effects in conditions such as coronary heart disease, angina pectoris, and diabetic peripheral neuropathy. However, its effect on cGAS-STING pathway and its ability to alleviate skin damage have not been previously reported. In a co-culture system, supernatant from UVB-treated keratinocytes induced IRF3 activation in macrophages, and this activation was inhibited by salvianolic acid A. Our investigation, employing photodamage and photoaging models, establishes that salvianolic acid A effectively mitigates UV-induced epidermal thickening and collagen degeneration. Treatment with salvianolic acid A significantly reduced skin damage, epidermal thickness increase, and keratinocyte hyperproliferation compared to the untreated photo-damage and photoaging model groups. In summary, salvianolic acid A emerges as a promising candidate for preventing UV-induced skin damage by inhibiting cGAS-STING activation. This research enhances our understanding of the intricate mechanisms underlying skin photodamage and provides a potential avenue for the development of therapeutic interventions.
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Affiliation(s)
- Zhenqi Zuo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Shengwei He
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Yinqi Qiu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Runying Guo
- Dongguan Eastern Central Hospital, The Sixth Affiliated hospital of Jinan University, China
| | - Yingxue He
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Chenyang Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Yugui Xia
- Institute of Artificial Intelligence Biomedicine, Nanjing University, Nanjing, China. 10th Xinghuo Road, Jiangbei New District, Nanjing, China
| | - Wen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Chao Luan
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China.
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2
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Congues F, Wang P, Lee J, Lin D, Shahid A, Xie J, Huang Y. Targeting aryl hydrocarbon receptor to prevent cancer in barrier organs. Biochem Pharmacol 2024; 223:116156. [PMID: 38518996 PMCID: PMC11144369 DOI: 10.1016/j.bcp.2024.116156] [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: 10/31/2023] [Revised: 03/08/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
The skin, lung, and gut are important barrier organs that control how the body reacts to environmental stressors such as ultraviolet (UV) radiation, air pollutants, dietary components, and microorganisms. The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor that plays an important role in maintaining homeostasis of barrier organs. AhR was initially discovered as a receptor for environmental chemical carcinogens such as polycyclic aromatic hydrocarbons (PAHs). Activation of AhR pathways by PAHs leads to increased DNA damage and mutations which ultimately lead to carcinogenesis. Ongoing evidence reveals an ever-expanding role of AhR. Recently, AhR has been linked to immune systems by the interaction with the development of natural killer (NK) cells, regulatory T (Treg) cells, and T helper 17 (Th17) cells, as well as the production of immunosuppressive cytokines. However, the role of AhR in carcinogenesis is not as straightforward as we initially thought. Although AhR activation has been shown to promote carcinogenesis in some studies, others suggest that it may act as a tumor suppressor. In this review, we aim to explore the role of AhR in the development of cancer that originates from barrier organs. We also examined the preclinical efficacy data of AhR agonists and antagonists on carcinogenesis to determine whether AhR modulation can be a viable option for cancer chemoprevention.
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Affiliation(s)
- Francoise Congues
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Pengcheng Wang
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA; Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Joshua Lee
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Daphne Lin
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Ayaz Shahid
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Jianming Xie
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Ying Huang
- Department of Biotechnology and Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA.
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3
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Griffith BD, Frankel TL. The Aryl Hydrocarbon Receptor: Impact on the Tumor Immune Microenvironment and Modulation as a Potential Therapy. Cancers (Basel) 2024; 16:472. [PMID: 38339226 PMCID: PMC10854841 DOI: 10.3390/cancers16030472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ubiquitous nuclear receptor with a broad range of functions, both in tumor cells and immune cells within the tumor microenvironment (TME). Activation of AhR has been shown to have a carcinogenic effect in a variety of organs, through induction of cellular proliferation and migration, promotion of epithelial-to-mesenchymal transition, and inhibition of apoptosis, among other functions. However, the impact on immune cell function is more complicated, with both pro- and anti-tumorigenic roles identified. Although targeting AhR in cancer has shown significant promise in pre-clinical studies, there has been limited efficacy in phase III clinical trials to date. With the contrasting roles of AhR activation on immune cell polarization, understanding the impact of AhR activation on the tumor immune microenvironment is necessary to guide therapies targeting the AhR. This review article summarizes the state of knowledge of AhR activation on the TME, limitations of current findings, and the potential for modulation of the AhR as a cancer therapy.
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Affiliation(s)
- Brian D. Griffith
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Timothy L. Frankel
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA;
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
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4
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Zou H, Zhang M, Chen J, Aniagu S, Jiang Y, Chen T. AHR-mediated DNA damage contributes to BaP-induced cardiac malformations in zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167636. [PMID: 37806592 DOI: 10.1016/j.scitotenv.2023.167636] [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: 09/06/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Benzo[a]pyrene (BaP) is a representative polycyclic aromatic hydrocarbon widely present in the environment. We previously reported that the aryl hydrocarbon receptor (AHR) mediates BaP-induced apoptosis and cardiac malformations in zebrafish embryos, but the underlying molecular mechanisms were unclear. Since BaP is a mutagenetic compound, we hypothesize that BaP induces apoptosis and heart defects via AHR-mediated DNA damage. In this study, zebrafish embryos were exposed to BaP at a concentration of 0.1 μM from 2 to 72 h post fertilization, either with or without inhibitors/agonists. AHR activity and levels of reactive oxygen species (ROS) were examined under a fluorescence microscope. mRNA expression levels were quantified by qPCR. DNA damage and apoptosis were detected by immunofluorescence. Our findings revealed that BaP exposure significantly increased BPDE-DNA adducts, mitochondrial damage, apoptosis and heart defects in zebrafish embryos. These effects were counteracted by inhibiting AHR/cyp1a1 using pharmaceutical inhibitors or genetic knockdown. Furthermore, we observed that spironolactone, an antagonist of nucleotide excision repair (NER), significantly enhanced BaP-induced BPDE-DNA adducts, mitochondrial damage, apoptosis and heart malformation rates. Conversely, SRT1720, a SIRT1 agonist, reduced the adverse effects of BaP. Supplementation with spironolactone also enhanced γ-H2AX signals in the heart of zebrafish embryos exposed to BaP. Additional experiments demonstrated that BaP suppressed the expression of SIRT1. We further established that AHR, when activated by BaP, directly inhibited SIRT1 transcription, leading to downregulation of XPC and XPA, which are essential NER genes involved in the recognition and verification steps of the NER process. Taken together, our results indicate that AHR mediates BaP-induced DNA damage in the heart of zebrafish embryos by inducing BPDE-DNA adduct formation via the AHR/Cyp1a1 signalling pathway, as well as suppressing NER via AHR-mediated inhibition of SIRT1.
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Affiliation(s)
- Hongmei Zou
- Suzhou Medical College, Soochow University, Suzhou, China; Education Key Laboratory of Geriatric Diseases and Immunology, Suzhou, China
| | - Mingxuan Zhang
- Suzhou Medical College, Soochow University, Suzhou, China; Education Key Laboratory of Geriatric Diseases and Immunology, Suzhou, China
| | - Jin Chen
- Suzhou Medical College, Soochow University, Suzhou, China; Education Key Laboratory of Geriatric Diseases and Immunology, Suzhou, China
| | - Stanley Aniagu
- Toxicology, Risk Assessment, and Research Division, Texas Commission on Environmental Quality, 12015 Park 35 Cir, Austin, TX, USA
| | - Yan Jiang
- Suzhou Medical College, Soochow University, Suzhou, China; Education Key Laboratory of Geriatric Diseases and Immunology, Suzhou, China.
| | - Tao Chen
- Suzhou Medical College, Soochow University, Suzhou, China; Education Key Laboratory of Geriatric Diseases and Immunology, Suzhou, China.
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5
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Li L, Huang X, Chen H. Unveiling the hidden players: exploring the role of gut mycobiome in cancer development and treatment dynamics. Gut Microbes 2024; 16:2328868. [PMID: 38485702 PMCID: PMC10950292 DOI: 10.1080/19490976.2024.2328868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/06/2024] [Indexed: 03/19/2024] Open
Abstract
The role of gut fungal species in tumor-related processes remains largely unexplored, with most studies still focusing on fungal infections. This review examines the accumulating evidence suggesting the involvement of commensal and pathogenic fungi in cancer biological process, including oncogenesis, progression, and treatment response. Mechanisms explored include fungal influence on host immunity, secretion of bioactive toxins/metabolites, interaction with bacterial commensals, and migration to other tissues in certain types of cancers. Attempts to utilize fungal molecular signatures for cancer diagnosis and fungal-derived products for treatment are discussed. A few studies highlight fungi's impact on the responsiveness and sensitivity to chemotherapy, radiotherapy, immunotherapy, and fecal microbiota transplant. Given the limited understanding and techniques in fungal research, the studies on gut fungi are still facing great challenges, despite having great potentials.
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Affiliation(s)
- Lingxi Li
- State Key Laboratory of Systems Medicine for Cancer, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai Cancer Institute, Shanghai, China
| | - Xiaowen Huang
- State Key Laboratory of Systems Medicine for Cancer, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai Cancer Institute, Shanghai, China
| | - Haoyan Chen
- State Key Laboratory of Systems Medicine for Cancer, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai Cancer Institute, Shanghai, China
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6
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Spencer RK, Jin JQ, Elhage KG, Davis MS, Liao W, Bhutani T. Management of Plaque Psoriasis in Adults: Clinical Utility of Tapinarof Cream. PSORIASIS (AUCKLAND, N.Z.) 2023; 13:59-69. [PMID: 37905185 PMCID: PMC10613418 DOI: 10.2147/ptt.s393997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/16/2023] [Indexed: 11/02/2023]
Abstract
Topical medications represent the most commonly used drugs in the treatment of psoriasis. However, topical steroids are mainly limited to short-term or intermittent use, and traditional non-steroidal topicals such as vitamin D analogues, topical calcineurin inhibitors, and topical retinoids are limited by low efficacy and poor local skin tolerability. Tapinarof (GSK2894512, DMVT-505) is a novel, topical aryl hydrocarbon receptor (AHR) agonist, which was recently approved by the FDA for the treatment of plaque psoriasis in adults. Tapinarof acts to improve psoriasis through diminished IL-17A production by CD4+ T cells, increased barrier gene expression in keratinocytes, and reduced production of reactive oxygen species. Both short-term and long-term efficacy and safety have been evaluated in two Phase II and two Phase III (PSOARING 1 and 2) clinical trials in addition to a long-term extension study (PSOARING 3). Overall, the drug has shown beneficial effects in achieving clear skin in adults with moderate-to-severe psoriasis, good local tolerability, and also a long duration of effect even after discontinuation of the drug. Therefore, this therapy provides a new, highly effective and safe non-steroidal option to add to our psoriasis treatment toolbox for both initial clearance and long-term maintenance of disease.
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Affiliation(s)
- Riley K Spencer
- Arizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Joy Q Jin
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
- School of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Kareem G Elhage
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Mitchell S Davis
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Wilson Liao
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Tina Bhutani
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
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7
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Mandal A, Biswas N, Alam MN. Implications of xenobiotic-response element(s) and aryl hydrocarbon receptor in health and diseases. Hum Cell 2023; 36:1638-1655. [PMID: 37329424 DOI: 10.1007/s13577-023-00931-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/01/2023] [Indexed: 06/19/2023]
Abstract
The effect of air pollution on public health is severely detrimental. In humans; the physiological response against pollutants is mainly elicited via the activation of aryl hydrocarbon receptor (AhR). It acts as a prime sensor of xenobiotic chemicals, also functioning as a transcription factor regulating a variety of gene expressions. Along with AhR, another pivotal element of the pollution stress pathway is Xenobiotic Response Elements (XREs). XRE, as studied are some conserved sequences in the DNA, responsible for the physiological response against pollutants. XRE is present at the upstream of the inducible target genes of AhR and it regulates the function of the AhR. XRE(s) are highly conserved in species as it has only eight specific sequences found so far in humans, mice, and rats. Inhalation of toxicants like dioxins, gaseous industrial effluents, and smoke from burning fuel and tobacco leads to predominant damage to the lungs. However, scientists are exploring the involvement of AhR in chronic diseases for example chronic obstructive pulmonary disease (COPD) and also other lethal diseases like lung cancer. In this review, we summarise what is known at this time about the roles played by the XRE and AhR in our molecular systems that have a defined control in the normal maintenance of homeostasis as well as dysfunctions.
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Affiliation(s)
- Avijit Mandal
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Nabendu Biswas
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Md Nur Alam
- Department of Life Sciences, Presidency University, Kolkata, 700073, India.
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8
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Chong ZX, Yong CY, Ong AHK, Yeap SK, Ho WY. Deciphering the roles of aryl hydrocarbon receptor (AHR) in regulating carcinogenesis. Toxicology 2023; 495:153596. [PMID: 37480978 DOI: 10.1016/j.tox.2023.153596] [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: 06/27/2023] [Revised: 07/13/2023] [Accepted: 07/16/2023] [Indexed: 07/24/2023]
Abstract
Aryl hydrocarbon receptor (AHR) is a ligand-dependent receptor that belongs to the superfamily of basic helix-loop-helix (bHLH) transcription factors. The activation of the canonical AHR signaling pathway is known to induce the expression of cytochrome P450 enzymes, facilitating the detoxification metabolism in the human body. Additionally, AHR could interact with various signaling pathways such as epidermal growth factor receptor (EGFR), signal transducer and activator of transcription 3 (STAT3), hypoxia-inducible factor-1α (HIF-1α), nuclear factor ekappa B (NF-κβ), estrogen receptor (ER), and androgen receptor (AR) signaling pathways. Over the past 30 years, several studies have reported that various chemical, physical, or biological agents, such as tobacco, hydrocarbon compounds, industrial and agricultural chemical wastes, drugs, UV, viruses, and other toxins, could affect AHR expression or activity, promoting cancer development. Thus, it is valuable to overview how these factors regulate AHR-mediated carcinogenesis. Current findings have reported that many compounds could act as AHR ligands to drive the expressions of AHR-target genes, such as CYP1A1, CYP1B1, MMPs, and AXL, and other targets that exert a pro-proliferation or anti-apoptotic effect, like XIAP. Furthermore, some other physical and chemical agents, such as UV and 3-methylcholanthrene, could promote AHR signaling activities, increasing the signaling activities of a few oncogenic pathways, such as the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) and mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathways. Understanding how various factors regulate AHR-mediated carcinogenesis processes helps clinicians and scientists plan personalized therapeutic strategies to improve anti-cancer treatment efficacy. As many studies that have reported the roles of AHR in regulating carcinogenesis are preclinical or observational clinical studies that did not explore the detailed mechanisms of how different chemical, physical, or biological agents promote AHR-mediated carcinogenesis processes, future studies should focus on conducting large-scale and functional studies to unravel the underlying mechanism of how AHR interacts with different factors in regulating carcinogenesis processes.
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Affiliation(s)
- Zhi Xiong Chong
- Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
| | - Chean Yeah Yong
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, 43900 Sepang, Selangor, Malaysia
| | - Alan Han Kiat Ong
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, 43000 Kajang, Malaysia
| | - Swee Keong Yeap
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, 43900 Sepang, Selangor, Malaysia.
| | - Wan Yong Ho
- Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia.
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Luan C, He Y, Liu W, Rong Y, Gao J, Xu K, Yu H, Hu Y, Zhang J, Chen K, Guo W. PCSK9 inhibition interrupts the cross-talk between keratinocytes and macrophages and prevents UVB-induced skin damage. J Biol Chem 2023; 299:104895. [PMID: 37290532 PMCID: PMC10331474 DOI: 10.1016/j.jbc.2023.104895] [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: 01/05/2023] [Revised: 05/15/2023] [Accepted: 05/28/2023] [Indexed: 06/10/2023] Open
Abstract
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is an enzyme that promotes the degradation of low-density lipoprotein receptors. It is involved in hyperlipidemia as well as other diseases, such as cancer and skin inflammation. However, the detailed mechanism for PCSK9 on ultraviolet B (UVB)-induced skin lesions was not clear. Thus, the role and possible action mechanism of PCSK9 in UVB-induced skin damage in mice were studied here using siRNA and a small molecule inhibitor (SBC110736) against PCSK9. Immunohistochemical staining revealed a significant increase in PCSK9 expression after UVB exposure, indicating the possible role of PCSK9 in UVB damage. Skin damage, increase in epidermal thickness, and keratinocyte hyperproliferation were significantly alleviated after treatment with SBC110736 or siRNA duplexes, compared with that in the UVB model group. Notably, UVB exposure triggered DNA damage in keratinocytes, whereas substantial interferon regulatory factor 3 (IRF3) activation was observed in macrophages. Pharmacologic inhibition of STING or cGAS knockout significantly reduced UVB-induced damage. In the co-culture system, supernatant from UVB-treated keratinocyte induced IRF3 activation in macrophages. This activation was inhibited with SBC110736 and by PCSK9 knockdown. Collectively, our findings reveal that PCSK9 plays a critical role in the crosstalk between damaged keratinocytes and STING activation in macrophages. The interruption of this crosstalk by PCSK9 inhibition may be a potential therapeutic strategy for UVB-induced skin damage.
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Affiliation(s)
- Chao Luan
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yingxue He
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yicheng Rong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Jian Gao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Kang Xu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Hui Yu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yu Hu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Jiaan Zhang
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Kun Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
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10
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Winge MCG, Kellman LN, Guo K, Tang JY, Swetter SM, Aasi SZ, Sarin KY, Chang ALS, Khavari PA. Advances in cutaneous squamous cell carcinoma. Nat Rev Cancer 2023:10.1038/s41568-023-00583-5. [PMID: 37286893 DOI: 10.1038/s41568-023-00583-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/06/2023] [Indexed: 06/09/2023]
Abstract
Human malignancies arise predominantly in tissues of epithelial origin, where the stepwise transformation from healthy epithelium to premalignant dysplasia to invasive neoplasia involves sequential dysregulation of biological networks that govern essential functions of epithelial homeostasis. Cutaneous squamous cell carcinoma (cSCC) is a prototype epithelial malignancy, often with a high tumour mutational burden. A plethora of risk genes, dominated by UV-induced sun damage, drive disease progression in conjunction with stromal interactions and local immunomodulation, enabling continuous tumour growth. Recent studies have identified subpopulations of SCC cells that specifically interact with the tumour microenvironment. These advances, along with increased knowledge of the impact of germline genetics and somatic mutations on cSCC development, have led to a greater appreciation of the complexity of skin cancer pathogenesis and have enabled progress in neoadjuvant immunotherapy, which has improved pathological complete response rates. Although measures for the prevention and therapeutic management of cSCC are associated with clinical benefit, the prognosis remains poor for advanced disease. Elucidating how the genetic mechanisms that drive cSCC interact with the tumour microenvironment is a current focus in efforts to understand, prevent and treat cSCC.
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Affiliation(s)
- Mårten C G Winge
- Program in Epithelial Biology, Stanford University, Stanford, CA, USA
- Department of Dermatology, Stanford University, Redwood City, CA, USA
| | - Laura N Kellman
- Program in Epithelial Biology, Stanford University, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA
- Stanford Program in Cancer Biology, Stanford University, Stanford, CA, USA
| | - Konnie Guo
- Program in Epithelial Biology, Stanford University, Stanford, CA, USA
| | - Jean Y Tang
- Department of Dermatology, Stanford University, Redwood City, CA, USA
| | - Susan M Swetter
- Department of Dermatology, Stanford University, Redwood City, CA, USA
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA
- Veterans Affairs Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Sumaira Z Aasi
- Department of Dermatology, Stanford University, Redwood City, CA, USA
| | - Kavita Y Sarin
- Department of Dermatology, Stanford University, Redwood City, CA, USA
| | - Anne Lynn S Chang
- Department of Dermatology, Stanford University, Redwood City, CA, USA
| | - Paul A Khavari
- Program in Epithelial Biology, Stanford University, Stanford, CA, USA.
- Department of Dermatology, Stanford University, Redwood City, CA, USA.
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
- Stanford Program in Cancer Biology, Stanford University, Stanford, CA, USA.
- Veterans Affairs Palo Alto Healthcare System, Palo Alto, CA, USA.
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11
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Ji C, Tao Y, Li X, Wang J, Chen J, Aniagu S, Jiang Y, Chen T. AHR-mediated m 6A RNA methylation contributes to PM 2.5-induced cardiac malformations in zebrafish larvae. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131749. [PMID: 37270964 DOI: 10.1016/j.jhazmat.2023.131749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/11/2023] [Accepted: 05/29/2023] [Indexed: 06/06/2023]
Abstract
A growing body of evidence indicates that ambient fine particle matter (PM2.5) exposure inhibits heart development, but the underlying mechanisms remain elusive. We hypothesized that m6A RNA methylation plays an important role in the cardiac developmental toxicity of PM2.5. In this study, we demonstrated that extractable organic matter (EOM) from PM2.5 significantly decreased global m6A RNA methylation levels in the heart of zebrafish larvae, which were restored by the methyl donor, betaine. Betaine also attenuated EOM-induced ROS overgeneration, mitochondrial damage, apoptosis and heart defects. Furthermore, we found that the aryl hydrocarbon receptor (AHR), which was activated by EOM, directly repressed the transcription of methyltransferases mettl14 and mettl3. EOM also induced genome-wide m6A RNA methylation changes, which led us to focus more on the aberrant m6A methylation changes that were subsequently alleviated by the AHR inhibitor, CH223191. In addition, we found that the expression levels of traf4a and bbc3, two apoptosis related genes, were upregulated by EOM but restored to control levels by the forced expression of mettl14. Moreover, knockdown of either traf4a or bbc3 attenuated EOM-induced ROS overproduction and apoptosis. In conclusion, our results indicate that PM2.5 induces m6A RNA methylation changes via AHR-mediated mettl14 downregulation, which upregulates traf4a and bbc3, leading to apoptosis and cardiac malformations.
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Affiliation(s)
- Cheng Ji
- Suzhou Medical College, Soochow University, Suzhou, China
| | - Yizhou Tao
- Suzhou Medical College, Soochow University, Suzhou, China
| | - Xiaoxiao Li
- Suzhou Medical College, Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Jin Wang
- Suzhou Medical College, Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Jin Chen
- Suzhou Medical College, Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Stanley Aniagu
- Toxicology, Risk Assessment, and Research Division, Texas Commission on Environmental Quality, 12015 Park 35 Cir, Austin, TX, USA
| | - Yan Jiang
- Suzhou Medical College, Soochow University, Suzhou, China.
| | - Tao Chen
- Suzhou Medical College, Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China.
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12
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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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13
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Rikken G, Smith KJ, van den Brink NJM, Smits JPH, Gowda K, Alnemri A, Kuzu GE, Murray IA, Lin JM, Smits JGA, van Vlijmen-Willems IM, Amin SG, Perdew GH, van den Bogaard EH. Lead optimization of aryl hydrocarbon receptor ligands for treatment of inflammatory skin disorders. Biochem Pharmacol 2023; 208:115400. [PMID: 36574884 DOI: 10.1016/j.bcp.2022.115400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/26/2022]
Abstract
Therapeutic aryl hydrocarbon receptor (AHR) modulating agents gained attention in dermatology as non-steroidal anti-inflammatory drugs that improve skin barrier properties. By exploiting AHR's known ligand promiscuity, we generated novel AHR modulating agents by lead optimization of a selective AHR modulator (SAhRM; SGA360). Twenty-two newly synthesized compounds were screened yielding two novel derivatives, SGA360f and SGA388, in which agonist activity led to enhanced keratinocyte terminal differentiation. SGA388 showed the highest agonist activity with potent normalization of keratinocyte hyperproliferation, restored expression of skin barrier proteins and dampening of chemokine expression by keratinocytes upon Th2-mediated inflammation in vitro. The topical application of SGA360f and SGA388 reduced acute skin inflammation in vivo by reducing cyclooxygenase levels, resulting in less neutrophilic dermal infiltrates. The minimal induction of cytochrome P450 enzyme activity, lack of cellular toxicity and mutagenicity classifies SGA360f and SGA388 as novel potential therapeutic AHR ligands and illustrates the potential of medicinal chemistry to fine-tune AHR signaling for the development of targeted therapies in dermatology and beyond.
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Affiliation(s)
- Gijs Rikken
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Kayla J Smith
- Department of Veterinary and Biomedical Sciences, and Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA, USA
| | - Noa J M van den Brink
- Department of Pharmacology, Penn State College of Medicine, Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, USA
| | - Jos P H Smits
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Krishne Gowda
- Department of Pharmacology, Penn State College of Medicine, Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, USA
| | - Angela Alnemri
- Department of Veterinary and Biomedical Sciences, and Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA, USA
| | - Gulsum E Kuzu
- Department of Veterinary and Biomedical Sciences, and Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA, USA
| | - Iain A Murray
- Department of Veterinary and Biomedical Sciences, and Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA, USA
| | - Jyh-Ming Lin
- Metabolomics Facility, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Jos G A Smits
- Department of Molecular Developmental Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, the Netherlands
| | - Ivonne M van Vlijmen-Willems
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Shantu G Amin
- Department of Pharmacology, Penn State College of Medicine, Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, USA
| | - Gary H Perdew
- Department of Veterinary and Biomedical Sciences, and Center for Molecular Toxicology and Carcinogenesis, Penn State University, University Park, PA, USA.
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands.
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14
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From Nucleus to Organs: Insights of Aryl Hydrocarbon Receptor Molecular Mechanisms. Int J Mol Sci 2022; 23:ijms232314919. [PMID: 36499247 PMCID: PMC9738205 DOI: 10.3390/ijms232314919] [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: 10/25/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a markedly established regulator of a plethora of cellular and molecular processes. Its initial role in the detoxification of xenobiotic compounds has been partially overshadowed by its involvement in homeostatic and organ physiology processes. In fact, the discovery of its ability to bind specific target regulatory sequences has allowed for the understanding of how AHR modulates such processes. Thereby, AHR presents functions in transcriptional regulation, chromatin architecture modifications and participation in different key signaling pathways. Interestingly, such fields of influence end up affecting organ and tissue homeostasis, including regenerative response both to endogenous and exogenous stimuli. Therefore, from classical spheres such as canonical transcriptional regulation in embryonic development, cell migration, differentiation or tumor progression to modern approaches in epigenetics, senescence, immune system or microbiome, this review covers all aspects derived from the balance between regulation/deregulation of AHR and its physio-pathological consequences.
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15
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Megahed MA, El-Sawy HS, Reda AM, Abd-Allah FI, Abu Elyazid SK, Lila AE, Ismael HR, El-Say KM. Effect of nanovesicular surface-functionalization via chitosan and/or PEGylation on cytotoxicity of tamoxifen in induced-breast cancer model. Life Sci 2022; 307:120908. [PMID: 36028168 DOI: 10.1016/j.lfs.2022.120908] [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: 05/21/2022] [Revised: 08/15/2022] [Accepted: 08/21/2022] [Indexed: 11/25/2022]
Abstract
AIMS The effect of surface-modification of Tamoxifen (Tam)-loaded-niosomes on drug cytotoxicity and bio-distribution, via functionalization with chitosan and/or PEGylation, was investigated. MATERIALS AND METHODS Tam-loaded hybrid-nanocarriers (Tam-loaded niosomes, chitosomes, PEGylated niosomes, and PEGylated chitosomes) were formulated and characterized. KEY FINDINGS Chitosanization with/without PEGylation proved to selectively enhance Tam-release at the cancerous-acidic micromilieu. Cytotoxic activity study showed that Tam-loaded PEGylated niosomes had a lower IC50 value on MCF-7 cell line (0.39, 0.35, and 0.27 times) than Tam-loaded PEGylated chitosomes, Tam-loaded niosomes, and Tam-loaded chitosomes, respectively. Cell cycle analysis showed that PEGylation and/or Chitosanization significantly impact Tam efficiency in inducing apoptosis, with a preferential influence of PEGylation over chitosanization. The assay of Annexin-V/PI double staining revealed that chitosanized-nanocarriers had a significant role in increasing the incidence of apoptosis over necrosis. Besides, PEGylated-nanocarriers increased apoptosis, as well as total death and necrosis percentages more than what was shown from free Tam. Moreover, the average changes in both Bax/Bcl-2 ratio and Caspase 9 were best improved in cells treated by Tam-loaded PEGylated niosomes over all other formulations. The in-vivo study involving DMBA-induced-breast cancer rats revealed that PEGylation made the highest tumor-growth inhibition (84.9 %) and breast tumor selectivity, while chitosanization had a lower accumulation tendency in the blood (62.3 ng/ml) and liver tissues (103.67 ng/ml). The histopathological specimens from the group treated with Tam-loaded PEGylated niosomes showed the best improvement over other formulations. SIGNIFICANCE All these results concluded the crucial effect of both PEGylation and chitosan-functionalization of Tam-loaded niosomes in enhancing effectiveness, targetability, and safety.
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Affiliation(s)
- Mohamed A Megahed
- Department of Pharmaceutics and Pharmaceutical Technology, Egyptian Russian University, Cairo 11829, Egypt
| | - Hossam S El-Sawy
- Department of Pharmaceutics and Pharmaceutical Technology, Egyptian Russian University, Cairo 11829, Egypt
| | - Ahmed M Reda
- Department of Biochemistry, Egyptian Russian University, Cairo 11829, Egypt
| | - Fathy I Abd-Allah
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Cairo 11651, Egypt; International Center for Bioavailability, Pharmaceutical and Clinical Research, Obour City 11828, Egypt
| | - Sherif K Abu Elyazid
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Ahmed E Lila
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Hatem R Ismael
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Khalid M El-Say
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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16
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Liu WW, Wang F, Li C, Song XY, Otkur W, Zhu YY, Hayashi T, Mizuno K, Hattori S, Fujisaki H, Ikejima T. Silibinin relieves UVB-induced apoptosis of human skin cells by inhibiting the YAP-p73 pathway. Acta Pharmacol Sin 2022; 43:2156-2167. [PMID: 34912007 PMCID: PMC9343358 DOI: 10.1038/s41401-021-00826-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/16/2021] [Indexed: 02/07/2023] Open
Abstract
Excessive exposure to UVB induces skin diseases. Silibinin, a flavonolignan used for treating liver diseases, is found to be effective against UVB-caused skin epidermal and dermal cell damage. In this study we investigated the molecular mechanisms underlying. Human nonmalignant immortalized keratinocyte HaCaT cells and neonatal human foreskin fibroblasts HFFs were exposed to UVB irradiation. We showed that pre-treatment with silibinin dose-dependently decreased UVB-induced apoptosis of HaCaT cells. Furthermore, we showed that silibinin treatment inhibited nuclear translocation of YAP after UVB irradiation. Molecular docking analysis and DARTS assay confirmed the direct interaction of silibinin with YAP. Silencing YAP by siRNA had no influence on the survival of HaCaT cells, whereas inhibiting classical YAP-TEAD signaling pathway by siRNA targeting TEAD1 or its pharmaceutical inhibitor verteporfin further augmented UVB-induced apoptosis, suggesting that YAP-TEAD pathway was prosurvival, which did not participate in the protective effect of silibinin. We then explored the pro-apoptotic YAP-p73 pathway. p73 was upregulated in UVB-irradiated cells, but reduced by silibinin cotreatment. The mRNA and protein levels of p73 target genes (PML, p21 and Bax) were all increased by UVB but decreased by silibinin co-treatment. Inhibiting p73 by using siRNA reduced UVB-induced apoptosis, suggesting that downregulation of p73 was responsible for the cytoprotective effect of silibinin. In HFFs, the upregulated YAP-p73 pathway by UVB irradiation was also suppressed by silibinin. Collectively, YAP-p73 pathway is a major cause of the death of UVB-exposed epidermal HaCaT cells and dermal HFFs. Silibinin directly inhibits YAP-p73 pathway, exerting the protective action on UVB-irradiated skin cells.
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Affiliation(s)
- Wei-wei Liu
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Fang Wang
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Can Li
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Xiao-yu Song
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Wuxiyar Otkur
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China ,grid.423905.90000 0004 1793 300XCAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China
| | - Yu-ying Zhu
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Toshihiko Hayashi
- grid.412561.50000 0000 8645 4345Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China ,grid.411110.40000 0004 1793 1012Department of Chemistry and Life science, School of Advanced Engineering, Kogakuin University, 2665-1, Nakanomachi, Hachioji, Tokyo 192-0015 Japan ,Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017 Japan
| | - Kazunori Mizuno
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017 Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017 Japan
| | - Hitomi Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017 Japan
| | - Takashi Ikejima
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China. .,Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Shenyang, 110016, China.
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17
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Liu X, Chen H, Li Z, Duan L, Yang X, Jiang P, Xu L, Gong Y, Han K. Evaluation of Biological Effects and Transcriptome Changes Induced by LED Based Narrow Band UVB Phototherapy. Photochem Photobiol 2022; 98:1379-1389. [PMID: 35538716 DOI: 10.1111/php.13643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022]
Abstract
Ultraviolet (UV), particularly UVB, is widely used in the treatment of skin diseases including psoriasis, atopic dermatitis, vitiligo, mycosis fungoides, and pruritus. Recently, there has been a trend of replacing broad band UVB (BB-UVB) units with narrow band UVB (NB-UVB), as studies have demonstrated that NB-UVB is more efficacious in the treatment of psoriasis. The purpose of this study is to evaluate the biological effects and transcriptome changes induced by light emitting diode based NB-UVB (NB-UVB LED) phototherapy. Cell viability and the cell migration ability was significantly decreased post treatment, as well as apoptosis and ROS levels were remarkably increased. NB-UVB induced S phase arrest was observed 12 hours post irradiation. Bioinformatics analysis of transcriptome sequencing data revealed that NB-UVB LED irradiation induced dose-depended changes in multiple key signaling pathways, such as PI3K and cytoskeletal-related pathways. The depolymerization of cytoskeleton induced by NB-UVB was observed 24 hours post treatment. In addition, the expression levels of cytoskeleton related proteins FN1, ITGB4, ITGA1, RAC2 and DOCK1 decreased significantly 12 hours after irradiation. Our results indicated that NB-UVB LED may serve as a novel option for the development of NB-UVB phototherapy devices.
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Affiliation(s)
- Xinfeng Liu
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Huaiyuan Chen
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Zeyang Li
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Liqiang Duan
- Shanxi Academy of Advanced Research and Innovation, Taiyuan, 030032, China
| | - Xibin Yang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Ping Jiang
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Linyu Xu
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Yan Gong
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
| | - Kun Han
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China.,Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, P. R. China
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18
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Rosmarinus officinalis L. Leaf Extracts and Their Metabolites Inhibit the Aryl Hydrocarbon Receptor (AhR) Activation In Vitro and in Human Keratinocytes: Potential Impact on Inflammatory Skin Diseases and Skin Cancer. Molecules 2022; 27:molecules27082499. [PMID: 35458697 PMCID: PMC9029298 DOI: 10.3390/molecules27082499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/01/2022] [Accepted: 04/10/2022] [Indexed: 12/02/2022] Open
Abstract
Aryl hydrocarbon receptor (AhR) activation by environmental agents and microbial metabolites is potentially implicated in a series of skin diseases. Hence, it would be very important to identify natural compounds that could inhibit the AhR activation by ligands of microbial origin as 6-formylindolo[3,2-b]carbazole (FICZ), indirubin (IND) and pityriazepin (PZ) or the prototype ligand 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Five different dry Rosmarinus officinalis L. extracts (ROEs) were assayed for their activities as antagonists of AhR ligand binding with guinea pig cytosol in the presence of [3H]TCDD. The methanolic ROE was further assayed towards CYP1A1 mRNA induction using RT-PCR in human keratinocytes against TCDD, FICZ, PZ, and IND. The isolated metabolites, carnosic acid, carnosol, 7-O-methyl-epi-rosmanol, 4′,7-O-dimethylapigenin, and betulinic acid, were assayed for their agonist and antagonist activity in the presence and absence of TCDD using the gel retardation assay (GRA). All assayed ROE extracts showed similar dose-dependent activities with almost complete inhibition of AhR activation by TCDD at 100 ppm. The methanol ROE at 10 ppm showed 99%, 50%, 90%, and 85% inhibition against TCDD, FICZ, IND, and PZ, respectively, in human keratinocytes. Most assayed metabolites exhibited dose-dependent antagonist activity. ROEs inhibit AhR activation by TCDD and by the Malassezia metabolites FICZ, PZ, and IND. Hence, ROE could be useful for the prevention or treatment of skin diseases mediated by activation of AhR.
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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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20
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Kim DJ, Iwasaki A, Chien AL, Kang S. UVB-mediated DNA damage induces matrix metalloproteinases to promote photoaging in an AhR- and SP1-dependent manner. JCI Insight 2022; 7:156344. [PMID: 35316219 PMCID: PMC9090247 DOI: 10.1172/jci.insight.156344] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
It is currently thought that UVB radiation drives photoaging of the skin primarily by generating ROS. In this model, ROS purportedly activates activator protein-1 to upregulate MMPs 1, 3, and 9, which then degrade collagen and other extracellular matrix components to produce wrinkles. However, these MMPs are expressed at relatively low levels and correlate poorly with wrinkles, suggesting that another mechanism distinct from ROS and MMP1/3/9 may be more directly associated with photoaging. Here we show that MMP2, which degrades type IV collagen, is abundantly expressed in human skin, increases with age in sun-exposed skin, and correlates robustly with aryl hydrocarbon receptor (AhR), a transcription factor directly activated by UV-generated photometabolites. Through mechanistic studies with HaCaT human immortalized keratinocytes, we found that AhR, specificity protein 1 (SP1), and other pathways associated with DNA damage are required for the induction of both MMP2 and MMP11 (another MMP implicated in photoaging), but not MMP1/3. Last, we found that topical treatment with AhR antagonists vitamin B12 and folic acid ameliorated UVB-induced wrinkle formation in mice while dampening MMP2 expression in the skin. These results directly implicate DNA damage in photoaging and reveal AhR as a potential target for preventing wrinkles.
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Affiliation(s)
- Daniel J Kim
- Department of Immunobiology, Yale University School of Medicine, New Haven, United States of America
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University School of Medicine, New Haven, United States of America
| | - Anna L Chien
- Department of Dermatology, Johns Hopkins School of Medicine, Baltimore, United States of America
| | - Sewon Kang
- Department of Dermatology, Johns Hopkins School of Medicine, Baltimore, United States of America
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21
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Elgiushy HR, Mohamed SH, Taha H, Sawaf H, Hassan Z, Abou-Taleb NA, El-labbad EM, Hassan AS, Abouzid KA, Hammad SF. Identification of a promising hit from a new series of pyrazolo[1,5-a]pyrimidine based compounds as a potential anticancer agent with potent CDK1 inhibitory and pro-apoptotic properties through a multistep in vitro assessment. Bioorg Chem 2022; 120:105646. [DOI: 10.1016/j.bioorg.2022.105646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/07/2021] [Accepted: 01/24/2022] [Indexed: 12/21/2022]
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Exposome and Skin. Part 2. The Influential Role of the Exposome, Beyond UVR, in Actinic Keratosis, Bowen's Disease and Squamous Cell Carcinoma: A Proposal. Dermatol Ther (Heidelb) 2022; 12:361-380. [PMID: 35112326 PMCID: PMC8850498 DOI: 10.1007/s13555-021-00644-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Indexed: 02/07/2023] Open
Abstract
Actinic keratosis (AK) is the main risk factor for the development of cutaneous invasive squamous cell carcinoma (SCC). It represents the first sign of severe chronic ultraviolet radiation exposure, which has a clear significant effect. Nevertheless, the skin is exposed to many other exposome factors which should be thoroughly considered. Our aim was to assess the impact of exposome factors other than ultraviolet radiation (UVR) on the etiopathology of AK and Bowen's disease (BD) and progression of AK to SCC and to design tailored prevention strategies. We performed an exhaustive literature search in September 2021 through PubMed on the impact of exposome factors other than UVR on AK, BD and SCC. We conducted several parallel searches combining terms of the following topics: AK, BD, SCC and microbiome, hormones, nutrition, alcohol, tobacco, viral infections, chemical contaminants and air pollution. Notably, skin microbiome studies have shown how Staphylococcus aureus infections are associated with AK and AK-to-SCC progression by the production of chronic inflammation. Nutritional studies have demonstrated how a caloric restriction in fat intake, oral nicotinamide and moderate consumption of wine significantly reduce the number of premalignant keratoses and SCC. Regarding lifestyle factors, both alcohol and smoking are associated with the development of SCC in a dose-dependent manner. Relevant environmental factors are viral infections and chemical contaminants. Human papillomavirus infections induce deregulation of cellular proliferation and are associated with AK, BD and SCC. In addition to outdoor jobs, occupations such as industrial processing and farming also increase the risk of developing keratoses and SCC. The exposome of AK will undoubtedly help the understanding of its etiopathology and possible progression to SCC and will serve as a basis to design tailored prevention strategies.
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The human fungal pathogen Malassezia and its role in cancer. FUNGAL BIOL REV 2021. [DOI: 10.1016/j.fbr.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Alanazi FE, As Sobeai HM, Alhazzani K, Al-Dhfyan A, Alshammari MA, Alotaibi M, Al-hosaini K, Korashy HM, Alhoshani A. Metformin attenuates V-domain Ig suppressor of T-cell activation through the aryl hydrocarbon receptor pathway in Melanoma: In Vivo and In Vitro Studies. Saudi Pharm J 2021; 30:138-149. [PMID: 35528855 PMCID: PMC9072704 DOI: 10.1016/j.jsps.2021.12.014] [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: 10/15/2021] [Accepted: 12/27/2021] [Indexed: 11/06/2022] Open
Abstract
Melanoma is an aggressive skin cancer with a high rate of metastasis to other organs. Recent studies specified the overexpression of V-domain Ig suppressor of T-cell activation (VISTA) and Aryl Hydrocarbon Receptor (AHR) in melanoma. Metformin shows anti-tumor activities in several cancer types. However, the mechanism is unclear. This study aims to investigate the inhibitory effect of metformin on VISTA via AHR in melanoma cells (CHL-1, B16) and animal models. VISTA and AHR levels were assessed by qPCR, Western blot, immunofluorescence microscope, flow cytometry, and immunohistochemistry. Here, metformin significantly decreased VISTA and AHR levels in vitro and in vivo. Furthermore, metformin inhibited all AHR-regulated genes. VISTA levels were dramatically inhibited by AHR modulations using shRNA and αNF, confirming the central role of AHR in VISTA. Finally, melanoma cells were xenografted in C57BL/6 and nude mice. Metformin significantly reduced the tumor volume and growth rate. Likewise, VISTA and AHR-regulated protein levels were suppressed in both models. These findings demonstrate for the first time that VISTA is suppressed by metformin and identified a new regulatory mechanism through AHR. The data suggest that metformin could be a new potential therapeutic strategy to treat melanoma patients combined with targeted immune checkpoint inhibitors.
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Kim MJ, Ha SJ, So BR, Kim CK, Kim KM, Jung SK. NADPH Oxidase and Epidermal Growth Factor Receptor Are Promising Targets of Phytochemicals for Ultraviolet-Induced Skin Carcinogenesis. Antioxidants (Basel) 2021; 10:antiox10121909. [PMID: 34943012 PMCID: PMC8750051 DOI: 10.3390/antiox10121909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/22/2022] Open
Abstract
The skin acts as the primary defense organ that protects the body from the external environment. Skin cancer is one of the most common cancers in the world. Skin carcinogenesis is usually caused by cell degeneration due to exposure to ultraviolet (UV) radiation, which causes changes in various signaling networks, disrupting the homeostasis of single skin cells. In this review, we summarize the roles of nicotinamide adenine dinucleotide phosphate oxidase (NOX) and epidermal growth factor receptor (EGFR) in UV-induced skin carcinogenesis. Furthermore, we describe the crosstalk that exists between NOX, EGFR, and protein tyrosine phosphatase κ and its oncogenic downstream signaling pathways. Chemoprevention is the use of chemical compounds to recover the healthy status of the skin or delay cancer development. Current evidence from in vitro and in vivo studies on chemopreventive phytochemicals that target NOX, EGFR, or both, as major regulators of skin carcinogenesis will also be discussed.
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Affiliation(s)
- Min Jeong Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (M.J.K.); (B.R.S.)
| | - Su Jeong Ha
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea;
| | - Bo Ram So
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (M.J.K.); (B.R.S.)
| | - Chang-Kil Kim
- Department of Horticultural Science, Kyungpook National University, Daegu 41566, Korea;
| | - Kyung-Min Kim
- Division of Plant Biosciences, School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (K.-M.K.); (S.K.J.); Tel.: +82-53-950-5711 (K.-M.K.); +82-53-950-7764 (S.K.J.)
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (M.J.K.); (B.R.S.)
- Institute of Agricultural Science & Technology, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (K.-M.K.); (S.K.J.); Tel.: +82-53-950-5711 (K.-M.K.); +82-53-950-7764 (S.K.J.)
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Synthesis of Novel 2-Thiouracil-5-Sulfonamide Derivatives as Potent Inducers of Cell Cycle Arrest and CDK2A Inhibition Supported by Molecular Docking. Int J Mol Sci 2021; 22:ijms222111957. [PMID: 34769385 PMCID: PMC8584424 DOI: 10.3390/ijms222111957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/19/2021] [Accepted: 10/29/2021] [Indexed: 01/16/2023] Open
Abstract
In an effort to discover potent anticancer agents, 2-thiouracil-5-sulfonamides derivatives were designed and synthesized. The cytotoxic activity of all synthesized compounds was investigated against four human cancer cell lines viz A-2780 (ovarian), HT-29 (colon), MCF-7 (breast), and HepG2 (liver). Compounds 6b,d-g, and 7b showed promising anticancer activity and significant inhibition of CDK2A. Moreover, they were all safe when tested on WI38 normal cells with high selectivity index for cancer cells. Flow cytometric analysis for the most active compound 6e displayed induction of cell growth arrest at G1/S phase (A-2780 cells), S phase (HT-29 and MCF-7 cells), and G2/M phase (HepG2 cells) and stimulated the apoptotic death of all cancer cells. Moreover, 6e was able to cause cycle arrest indirectly through enhanced expression of cell cycle inhibitors p21 and p27. Finally, molecular docking of compound 6e endorsed its proper binding to CDK2A, which clarifies its potent anticancer activity.
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Chen CT, Wu PH, Hu CC, Nien HC, Wang JT, Sheu JC, Chow LP. Aberrant Upregulation of Indoleamine 2,3-Dioxygenase 1 Promotes Proliferation and Metastasis of Hepatocellular Carcinoma Cells via Coordinated Activation of AhR and β-Catenin Signaling. Int J Mol Sci 2021; 22:ijms222111661. [PMID: 34769098 PMCID: PMC8583706 DOI: 10.3390/ijms222111661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 10/15/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fourth most common cause of cancer-related death worldwide. Chronic liver inflammation due to hepatitis virus infection and other major effectors is a major risk factor of HCC. Indoleamine 2,3-dioxygenase 1 (IDO1), a heme enzyme highly expressed upon stimulation with proinflammatory cytokines such as interferon-γ (IFN-γ), is activated to modulate the tumor microenvironment and potentially crucial in the development of certain cancer types. Earlier studies have majorly reported an immunomodulatory function of IDO1. However, the specific role of IDO1 in cancer cells, particularly HCC, remains to be clarified. Analysis of The Cancer Genome Atlas Liver Hepatocellular Carcinoma (TCGA LIHC) dataset in the current study revealed a significant correlation between IDO1 expression and HCC. We further established inducible IDO1-expressing cell models by coupling lentivirus-mediated knockdown and IFN-γ induction of IDO1 in normal and HCC cells. In functional assays, proliferation and motility-related functions of HCC cells were compromised upon suppression of IDO1, which may partially be rescued by its enzymatic product, kynurenine (KYN), while normal hepatocytes were not affected. Aryl hydrocarbon receptor (AhR), a reported endogenous KYN receptor, is suggested to participate in tumorigenesis. In mechanistic studies, IDO1 activation promoted both AhR and β-catenin activity and nuclear translocation. Immunofluorescence staining and co-immunoprecipitation assays further disclosed interactions between AhR and β-catenin. In addition, we identified a Src-PTEN-PI3K/Akt-GSK-3β axis involved in β-catenin stabilization and activation following IDO1-mediated AhR activation. IDO1-induced AhR and β-catenin modulated the expression of proliferation- and EMT-related genes to facilitate growth and metastasis of HCC cells. Our collective findings provide a mechanistic basis for the design of more efficacious IDO1-targeted therapy for HCC.
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Affiliation(s)
- Chih-Ta Chen
- Graduate Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, No. 1, Jen-Ai Rd, Taipei 100, Taiwan; (C.-T.C.); (P.-H.W.); (C.-C.H.)
| | - Pei-Hua Wu
- Graduate Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, No. 1, Jen-Ai Rd, Taipei 100, Taiwan; (C.-T.C.); (P.-H.W.); (C.-C.H.)
| | - Chia-Chi Hu
- Graduate Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, No. 1, Jen-Ai Rd, Taipei 100, Taiwan; (C.-T.C.); (P.-H.W.); (C.-C.H.)
| | - Hsiao-Ching Nien
- Department of Family Medicine, National Taiwan University Hospital, Taipei 100, Taiwan;
- Liver Disease Prevention and Treatment Research Foundation, Taipei 100, Taiwan;
| | - Jin-Town Wang
- Department of Microbiology, College of Medicine, National Taiwan University, Taipei 100, Taiwan;
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Jin-Chuan Sheu
- Liver Disease Prevention and Treatment Research Foundation, Taipei 100, Taiwan;
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Lu-Ping Chow
- Graduate Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, No. 1, Jen-Ai Rd, Taipei 100, Taiwan; (C.-T.C.); (P.-H.W.); (C.-C.H.)
- Correspondence: ; Tel.: +886-223-123-456 (ext. 88214); Fax: +886-223-958-814
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Rolfes KM, Sondermann NC, Vogeley C, Dairou J, Gilardino V, Wirth R, Meller S, Homey B, Krutmann J, Lang D, Nakamura M, Haarmann-Stemmann T. Inhibition of 6-formylindolo[3,2-b]carbazole metabolism sensitizes keratinocytes to UVA-induced apoptosis: Implications for vemurafenib-induced phototoxicity. Redox Biol 2021; 46:102110. [PMID: 34418602 PMCID: PMC8379514 DOI: 10.1016/j.redox.2021.102110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022] Open
Abstract
Ultraviolet (UV) B irradiation of keratinocytes results in the formation of the tryptophan photoproduct 6-formylindolo[3,2-b]carbazole (FICZ) which is a high-affinity ligand for the aryl hydrocarbon receptor (AHR). The resulting activation of AHR signaling induces the expression of cytochrome P450 (CYP) 1A1 which subsequently metabolizes FICZ. Importantly, FICZ is also a nanomolar photosensitizer for UVA radiation. Here, we assess whether a manipulation of the AHR-CYP1A1 axis in human epidermal keratinocytes affects FICZ/UVA-induced phototoxic effects and whether this interaction might be mechanistically relevant for the phototoxicity of the BRAF inhibitor vemurafenib. Treatment of keratinocytes with an AHR agonist enhanced the CYP1A1-catalyzed metabolism of FICZ and thus prevented UVA photosensitization, whereas an inhibition of either AHR signaling or CYP1A1 enzyme activity resulted in an accumulation of FICZ and a sensitization to UVA-induced oxidative stress and apoptosis. Exposure of keratinocytes to vemurafenib resulted in the same outcome. Specifically, CYP phenotyping revealed that vemurafenib is primarily metabolized by CYP1A1 and to a lesser degree by CYP2J2 and CYP3A4. Hence, vemurafenib sensitized keratinocytes to UVA-induced apoptosis by interfering with the CYP1A1-mediated oxidative metabolism of FICZ. In contrast to this pro-apoptotic effect, a treatment of UVB-damaged keratinocytes with vemurafenib suppressed apoptosis, a process which might contribute to the skin carcinogenicity of the drug. Our results provide insight into the mechanisms responsible for the photosensitizing properties of vemurafenib and deliver novel information about its metabolism which might be relevant regarding potential drug-drug interactions. The data emphasize that the AHR-CYP1A1 axis contributes to the pathogenesis of cutaneous adverse drug reactions.
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Affiliation(s)
- Katharina M Rolfes
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Natalie C Sondermann
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Christian Vogeley
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Julien Dairou
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Université de Paris, F-75006, Paris, France
| | - Viola Gilardino
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany
| | - Ragnhild Wirth
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, 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
| | - Jean Krutmann
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany; Medical Faculty, Heinrich-Heine-University, 40225, Düsseldorf, Germany
| | - Dieter Lang
- Bayer AG, Drug Metabolism and Pharmacokinetics, Research Center, 42096, Wuppertal, Germany
| | - Motoki Nakamura
- IUF - Leibniz-Research Institute for Environmental Medicine, 40225, Düsseldorf, Germany; Department of Environmental and Geriatric Dermatology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, 467-8601, Japan
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Zhang Z, Huang Y, Chen H, Wu P, Deng Z, Deng G, Zheng Y, Li G, Yuan L, Xu Y. The correlation between polymorphisms in the XPC gene and glioma susceptibility in a Chinese pediatric population. Transl Pediatr 2021; 10:1896-1904. [PMID: 34430438 PMCID: PMC8349950 DOI: 10.21037/tp-21-301] [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] [Received: 06/04/2021] [Accepted: 07/15/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND A previous study revealed that single nucleotide polymorphisms (SNPs) in coding genes play a key role in tumorigenesis, genetic disorders, and drug resistance. Xeroderma pigmentosum group C (XPC) protein is a key DNA damage recognition factor that is required for maintaining the genomic stability. However, the correlation between XPC polymorphisms and glioma susceptibility is still unclear. Hence, this study aimed to investigate the correlation between XPC polymorphisms and pediatric glioma susceptibility. METHODS A total of 399 participants (171 glioma patients and 228 controls) were enrolled to evaluate the correlation between XPC polymorphism and pediatric glioma susceptibility. The count data of two groups was analyzed by chi-squared (χ2) test. Moreover, logistic regression was used to assess the strength of XPC polymorphisms associated with glioma susceptibility. RESULTS We identified that XPC rs1870134 G>C reduced pediatric glioma susceptibility. Compared to participants with rs1870134 GG/GC genotypes, those with rs1870134 CC genotype had a significantly lower risk for glioma [adjusted odds ratio (AOR) =0.10, 95% confidence interval (CI): 0.01 to 0.78, P=0.028]. Patients with 4-5 genotypes have higher risk of glioma than those with 0-3 genotypes (AOR =1.59, 95% CI: 1.04 to 2.43, P=0.031). The stratified analysis showed that the risky effects of rs2228000 CT/TT genotypes and rs2229090 GC/CC genotypes were more predominant among children aged ≥60 months, astrocytic tumors, and clinical stage I. CONCLUSIONS We found for the first time that XPC polymorphisms had a statistically significant correlation with pediatric glioma susceptibility in a Chinese population. The XPC rs2228000 CT/TT and rs2229090 GC/CC genotypes could both increase the risk of pediatric glioma in subgroups with females, astrocytic tumors, and clinical stage I. The XPC polymorphism has potential to be a useful adjunct method to screen pediatric glioma.
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Affiliation(s)
- Zhuorong Zhang
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yihuan Huang
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Honghao Chen
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ping Wu
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhijian Deng
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Gaoyan Deng
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yongqin Zheng
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Guoyuan Li
- Department of Comprehensive and Emergency Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Li Yuan
- Department of Pathology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yingyi Xu
- Department of Anesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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Kim M, Jee SC, Kim KS, Kim HS, Yu KN, Sung JS. Quercetin and Isorhamnetin Attenuate Benzo[a]pyrene-Induced Toxicity by Modulating Detoxification Enzymes through the AhR and NRF2 Signaling Pathways. Antioxidants (Basel) 2021; 10:antiox10050787. [PMID: 34065697 PMCID: PMC8156367 DOI: 10.3390/antiox10050787] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
Benzo[a]pyrene, classified as a Group 1 carcinogen, is metabolized to B[a]P-7,8-dihydrodiol-9,10-epoxide (BPDE), causing DNA mutations and eventually cancer. Quercetin is a dietary flavonoid abundant in fruits and vegetables. After quercetin intake, quercetin's metabolites isorhamnetin and miquelianin are more highly concentrated than quercetin in the human plasma. In this study, we investigated the molecular mechanisms associated with the cytoprotective effect of quercetin and its metabolites against benzo[a]pyrene from a detoxification perspective. Quercetin and its metabolite isorhamnetin reduced benzo[a]pyrene-induced cytotoxicity, whereas the metabolite miquelianin did not mitigate benzo[a]pyrene-induced cytotoxicity. Moreover, quercetin and isorhamnetin reduced intracellular levels of BPDE-DNA adducts. The formation and elimination of BPDE is mediated by the xenobiotic detoxification process. Quercetin and isorhamnetin increased the gene and protein expression levels of phase I, II, and III enzymes involved in xenobiotic detoxification. Furthermore, quercetin and isorhamnetin induced the translocation of aryl hydrocarbon receptor (AhR) and nuclear factor erythroid 2-related factor 2 (NRF2), which regulate the expression level of phase enzymes. Our results suggest that quercetin and isorhamnetin promote the metabolism, detoxification, and elimination of B[a]P, thereby increasing anti-genotoxic effects and protecting against B[a]P-induced cytotoxicity.
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Affiliation(s)
- Min Kim
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Gyeonggi-do, Korea; (M.K.); (S.-C.J.); (K.-N.Y.)
| | - Seung-Cheol Jee
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Gyeonggi-do, Korea; (M.K.); (S.-C.J.); (K.-N.Y.)
| | - Kyeong-Seok Kim
- Division of Toxicology, School of Pharmacy, Sungkyunkwan University-Suwon, Suwon 16419, Gyeonggi-do, Korea; (K.-S.K.); (H.-S.K.)
| | - Hyung-Sik Kim
- Division of Toxicology, School of Pharmacy, Sungkyunkwan University-Suwon, Suwon 16419, Gyeonggi-do, Korea; (K.-S.K.); (H.-S.K.)
| | - Kyoung-Nae Yu
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Gyeonggi-do, Korea; (M.K.); (S.-C.J.); (K.-N.Y.)
| | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Gyeonggi-do, Korea; (M.K.); (S.-C.J.); (K.-N.Y.)
- Correspondence: ; Tel.: +82-31-961-5132; Fax: +82-31-961-5108
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Ultraviolet Radiation and Chronic Inflammation-Molecules and Mechanisms Involved in Skin Carcinogenesis: A Narrative Review. Life (Basel) 2021; 11:life11040326. [PMID: 33917793 PMCID: PMC8068112 DOI: 10.3390/life11040326] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/24/2021] [Accepted: 04/06/2021] [Indexed: 12/21/2022] Open
Abstract
The process of skin carcinogenesis is still not fully understood. Both experimental and epidemiological evidence indicate that chronic inflammation is one of the hallmarks of microenvironmental-agent-mediated skin cancers and contributes to its development. Maintaining an inflammatory microenvironment is a condition leading to tumor formation. Multiple studies focus on the molecular pathways activating tumorigenesis by inflammation and indicate several biomarkers and factors that can improve diagnostic and prognostic processes in oncology and dermatology. Reactive oxygen species produced by ultraviolet radiation, oxidizers, or metabolic processes can damage cells and initiate pro-inflammatory cascades. Considering the potential role of inflammation in cancer development and metastasis, the identification of early mechanisms involved in carcinogenesis is crucial for clinical practice and scientific research. Moreover, it could lead to the progress of advanced skin cancer therapies. We focus on a comprehensive analysis of available evidence and on understanding how chronic inflammation and ultraviolet radiation can result in skin carcinogenesis. We present the inflammatory environment as complex molecular networks triggering tumorigenesis and constituting therapeutic targets.
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Jia Y, Guo J, Zhao Y, Zhang Z, Shi L, Fang Y, Wu D, Wu L, Chang C. AHR signaling pathway reshapes the metabolism of AML/MDS cells and potentially leads to cytarabine resistance. Acta Biochim Biophys Sin (Shanghai) 2021; 53:492-500. [PMID: 33709099 DOI: 10.1093/abbs/gmab017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Indexed: 01/08/2023] Open
Abstract
Emerging evidence suggests that aryl hydrocarbon receptor (AHR) promotes the initiation, invasion, progression, and metastasis of cancer cells. However, its effects in patients with myelodysplastic syndrome/acute myeloid leukemia (MDS/AML) remain undefined. In this study, we aimed to investigate the effects of AHR activation on malignant cells in patients with MDS/AML. We found that AHR was expressed aberrantly in patients with MDS/AML. Further studies demonstrated that inhibiting AHR decreased the mitochondrial dehydrogenase content and the mitochondrial membrane potential (MMP) in MDS/AML cells. Activating AHR with L-kynurenine (Kyn) increased AHR expression, which was accompanied by an increase in mitochondrial dehydrogenase content and MMP in MDS/AML cells. Moreover, the expression level of mitochondria-associated mitochondrial transcription factor A was increased after activating AHR with L-Kyn when compared with that in the control group but decreased after inhibiting the AHR signal. Activating AHR in MDS/AML cells enhanced the resistance to cytarabine. These findings indicated that activating the AHR signaling pathway reshaped the metabolism in MDS/AML cells, thus contributing to the resistance to cytarabine.
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Affiliation(s)
- Yan Jia
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Juan Guo
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Youshan Zhao
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Zheng Zhang
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Lei Shi
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Ying Fang
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Dong Wu
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Lingyun Wu
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Chunkang Chang
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
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Vogel CFA, Lazennec G, Kado SY, Dahlem C, He Y, Castaneda A, Ishihara Y, Vogeley C, Rossi A, Haarmann-Stemmann T, Jugan J, Mori H, Borowsky AD, La Merrill MA, Sweeney C. Targeting the Aryl Hydrocarbon Receptor Signaling Pathway in Breast Cancer Development. Front Immunol 2021; 12:625346. [PMID: 33763068 PMCID: PMC7982668 DOI: 10.3389/fimmu.2021.625346] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/11/2021] [Indexed: 01/09/2023] Open
Abstract
Activation of the aryl hydrocarbon receptor (AhR) through environmental exposure to known human carcinogens including dioxins can lead to the promotion of breast cancer. While the repressor protein of the AhR (AhRR) blocks the canonical AhR pathway, the function of AhRR in the development of breast cancer is not well-known. In the current study we examined the impact of suppressing AhR activity using its dedicated repressor protein AhRR. AhRR is a putative tumor suppressor and is silenced in several cancer types, including breast, where its loss correlates with shorter patient survival. Using the AhRR transgenic mouse, we demonstrate that AhRR overexpression opposes AhR-driven and inflammation-induced growth of mammary tumors in two different murine models of breast cancer. These include a syngeneic model using E0771 mammary tumor cells as well as the Polyoma Middle T antigen (PyMT) transgenic model. Further AhRR overexpression or knockout of AhR in human breast cancer cells enhanced apoptosis induced by chemotherapeutics and inhibited the growth of mouse mammary tumor cells. This study provides the first in vivo evidence that AhRR suppresses mammary tumor development and suggests that strategies which lead to its functional restoration and expression may have therapeutic benefit.
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MESH Headings
- Animals
- Animals, Genetically Modified
- Antigens, Polyomavirus Transforming/genetics
- Antineoplastic Agents/pharmacology
- Apoptosis
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Breast Neoplasms/drug therapy
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Cell Proliferation
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Cell Transformation, Neoplastic/pathology
- Doxorubicin/pharmacology
- Drug Resistance, Neoplasm
- Etoposide/pharmacology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- MCF-7 Cells
- Mice, Inbred C57BL
- Receptors, Aryl Hydrocarbon/genetics
- Receptors, Aryl Hydrocarbon/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction/drug effects
- Time Factors
- Tumor Burden
- Tumor Cells, Cultured
- Mice
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Affiliation(s)
- Christoph F. A. Vogel
- Department of Environmental Toxicology, University of California, Davis, Davis, CA, United States
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | | | - Sarah Y. Kado
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | - Carla Dahlem
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | - Yi He
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | - Alejandro Castaneda
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | - Yasuhiro Ishihara
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Christian Vogeley
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Andrea Rossi
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | | | - Juliann Jugan
- Department of Environmental Toxicology, University of California, Davis, Davis, CA, United States
| | - Hidetoshi Mori
- Center for Comparative Medicine, University of California, Davis, Davis, CA, United States
| | - Alexander D. Borowsky
- Center for Comparative Medicine, University of California, Davis, Davis, CA, United States
| | - Michele A. La Merrill
- Department of Environmental Toxicology, University of California, Davis, Davis, CA, United States
| | - Colleen Sweeney
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Davis, CA, United States
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Trajectory Shifts in Interdisciplinary Research of the Aryl Hydrocarbon Receptor-A Personal Perspective on Thymus and Skin. Int J Mol Sci 2021; 22:ijms22041844. [PMID: 33673338 PMCID: PMC7918350 DOI: 10.3390/ijms22041844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/13/2022] Open
Abstract
Identifying historical trajectories is a useful exercise in research, as it helps clarify important, perhaps even “paradigmatic”, shifts in thinking and moving forward in science. In this review, the development of research regarding the role of the transcription factor “aryl hydrocarbon receptor” (AHR) as a mediator of the toxicity of environmental pollution towards a link between the environment and a healthy adaptive response of the immune system and the skin is discussed. From this fascinating development, the opportunities for targeting the AHR in the therapy of many diseases become clear.
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A New Insight into the Potential Role of Tryptophan-Derived AhR Ligands in Skin Physiological and Pathological Processes. Int J Mol Sci 2021; 22:ijms22031104. [PMID: 33499346 PMCID: PMC7865493 DOI: 10.3390/ijms22031104] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 12/31/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) plays a crucial role in environmental responses and xenobiotic metabolism, as it controls the transcription profiles of several genes in a ligand-specific and cell-type-specific manner. Various barrier tissues, including skin, display the expression of AhR. Recent studies revealed multiple roles of AhR in skin physiology and disease, including melanogenesis, inflammation and cancer. Tryptophan metabolites are distinguished among the groups of natural and synthetic AhR ligands, and these include kynurenine, kynurenic acid and 6-formylindolo[3,2-b]carbazole (FICZ). Tryptophan derivatives can affect and regulate a variety of signaling pathways. Thus, the interest in how these substances influence physiological and pathological processes in the skin is expanding rapidly. The widespread presence of these substances and potential continuous exposure of the skin to their biological effects indicate the important role of AhR and its ligands in the prevention, pathogenesis and progression of skin diseases. In this review, we summarize the current knowledge of AhR in skin physiology. Moreover, we discuss the role of AhR in skin pathological processes, including inflammatory skin diseases, pigmentation disorders and cancer. Finally, the impact of FICZ, kynurenic acid, and kynurenine on physiological and pathological processes in the skin is considered. However, the mechanisms of how AhR regulates skin function require further investigation.
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36
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Biphenylurea/thiourea derivatives tagged with heteroarylsulfonamide motifs as novel VEGFR2 inhibitors; Design, synthesis and anti-angiogenic activity. Bioorg Chem 2021; 107:104640. [PMID: 33485105 DOI: 10.1016/j.bioorg.2021.104640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 01/01/2021] [Accepted: 01/04/2021] [Indexed: 12/19/2022]
Abstract
Anti-angiogenesis targeting vascular endothelial growth factor receptor 2 (VEGFR2) has emerged as a vital tool for cancer treatment. In this study, a new series of biphenylurea/thiourea derivatives tagged with heteroarylsulfonamide motifs (3a-l) was designed and synthesized as novel VEGFR2 inhibitors. The biochemical profiles of the target compounds were investigated using viability of human umbilical vascular endothelial cells (HUVECs), migration assay and Western blot using sorafenib as reference antiangiogenic drug. Most of the tested compounds exhibited significant antiproliferative activity against HUVECs, where compounds 3a, 3e, 3g, 3h and 3l exhibited better antiproliferative activity than sorafenib. All compounds significantly inhibited VEGF stimulated migration of HUVECs at 10 µM dose with (3a, 3e, 3g, 3h and 3l) showing better or comparable inhibitory activities to that of sorafenib. Moreover, Western blotting analysis confirmed antiangiogenic effect of those compounds with significant reduction in the level of VEGFR-2 compared to sorafenib. Finally, cytotoxicity screening of these derivatives against four cancer cells and RPE1 as normal cell line was performed. The mechanistic effectiveness in cell cycle progression and apoptotic induction were evaluated for the promising compound 3e due to its remarkable cytotoxic activity against tested cancer cell lines and significant VEGFR-2 inhibition. Flow cytometric analysis showed that compound 3e induced cell growth arrest at G2/M phase and stimulated the apoptotic death of HepG2 cells.
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37
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Wang Z, Snyder M, Kenison JE, Yang K, Lara B, Lydell E, Bennani K, Novikov O, Federico A, Monti S, Sherr DH. How the AHR Became Important in Cancer: The Role of Chronically Active AHR in Cancer Aggression. Int J Mol Sci 2020; 22:ijms22010387. [PMID: 33396563 PMCID: PMC7795223 DOI: 10.3390/ijms22010387] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022] Open
Abstract
For decades, the aryl hydrocarbon receptor (AHR) was studied for its role in environmental chemical toxicity i.e., as a quirk of nature and a mediator of unintended consequences of human pollution. During that period, it was not certain that the AHR had a “normal” physiological function. However, the ongoing accumulation of data from an ever-expanding variety of studies on cancer, cancer immunity, autoimmunity, organ development, and other areas bears witness to a staggering array of AHR-controlled normal and pathological activities. The objective of this review is to discuss how the AHR has gone from a likely contributor to genotoxic environmental carcinogen-induced cancer to a master regulator of malignant cell progression and cancer aggression. Particular focus is placed on the association between AHR activity and poor cancer outcomes, feedback loops that control chronic AHR activity in cancer, and the role of chronically active AHR in driving cancer cell invasion, migration, cancer stem cell characteristics, and survival.
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Affiliation(s)
- Zhongyan Wang
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (Z.W.); (K.Y.); (E.L.)
| | - Megan Snyder
- Graduate Program in Genetics and Genomics, Division of Graduate Medical Sciences, Boston University School of Medicine, Boston, MA 02118, USA;
| | - Jessica E. Kenison
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA 02118, USA;
| | - Kangkang Yang
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (Z.W.); (K.Y.); (E.L.)
| | - Brian Lara
- Department of Environmental Health, Boston University, Boston, MA 02118, USA; (B.L.); (K.B.)
| | - Emily Lydell
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (Z.W.); (K.Y.); (E.L.)
| | - Kawtar Bennani
- Department of Environmental Health, Boston University, Boston, MA 02118, USA; (B.L.); (K.B.)
| | | | - Anthony Federico
- Division of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA; (A.F.); (S.M.)
| | - Stefano Monti
- Division of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA; (A.F.); (S.M.)
| | - David H. Sherr
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (Z.W.); (K.Y.); (E.L.)
- Correspondence: ; Tel.: +1-617-358-1707
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38
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Kyoreva M, Li Y, Hoosenally M, Hardman-Smart J, Morrison K, Tosi I, Tolaini M, Barinaga G, Stockinger B, Mrowietz U, Nestle FO, Smith CH, Barker JN, Di Meglio P. CYP1A1 Enzymatic Activity Influences Skin Inflammation Via Regulation of the AHR Pathway. J Invest Dermatol 2020; 141:1553-1563.e3. [PMID: 33385398 PMCID: PMC8152917 DOI: 10.1016/j.jid.2020.11.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 09/30/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022]
Abstract
The AHR is an environmental sensor and transcription factor activated by a variety of man-made and natural ligands, which has recently emerged as a critical regulator of homeostasis at barrier organs such as the skin. Activation of the AHR pathway downmodulates skin inflammatory responses in animal models and psoriasis clinical samples. In this study, we identify CYP1A1 enzymatic activity as a critical regulator of beneficial AHR signaling in the context of skin inflammation. Mice constitutively expressing Cyp1a1 displayed increased CYP1A1 enzymatic activity in the skin, which resulted in exacerbated immune cell activation and skin pathology, mirroring that observed in Ahr-deficient mice. Inhibition of CYP1A1 enzymatic activity ameliorated the skin immunopathology by restoring beneficial AHR signaling. Importantly, patients with psoriasis displayed reduced activation of the AHR pathway and increased CYP1A1 enzymatic activity compared with healthy donors, suggesting that dysregulation of the AHR/CYP1A1 axis may play a role in inflammatory skin disease. Thus, modulation of CYP1A1 activity may represent a promising alternative strategy to harness the anti-inflammatory effect exerted by activation of the AHR pathway in the skin.
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Affiliation(s)
- Mariela Kyoreva
- AhRimmunity Lab, The Francis Crick Institute, London, United Kingdom
| | - Ying Li
- AhRimmunity Lab, The Francis Crick Institute, London, United Kingdom
| | - Mariyah Hoosenally
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | | | - Kirsten Morrison
- AhRimmunity Lab, The Francis Crick Institute, London, United Kingdom; Psoriasis Centre at the Department of Dermatology, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Isabella Tosi
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | - Mauro Tolaini
- AhRimmunity Lab, The Francis Crick Institute, London, United Kingdom
| | - Guillermo Barinaga
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | | | - Ulrich Mrowietz
- Psoriasis Centre at the Department of Dermatology, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Frank O Nestle
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | - Catherine H Smith
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | - Jonathan N Barker
- St John's Institute of Dermatology, King's College London, London, United Kingdom
| | - Paola Di Meglio
- AhRimmunity Lab, The Francis Crick Institute, London, United Kingdom; St John's Institute of Dermatology, King's College London, London, United Kingdom.
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39
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Brinkmann V, Schiavi A, Shaik A, Puchta DR, Ventura N. Dietary and environmental factors have opposite AhR-dependent effects on C. elegans healthspan. Aging (Albany NY) 2020; 13:104-133. [PMID: 33349622 PMCID: PMC7835051 DOI: 10.18632/aging.202316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/08/2020] [Indexed: 12/14/2022]
Abstract
Genetic, dietary, and environmental factors concurrently shape the aging process. The aryl hydrocarbon receptor (AhR) was discovered as a dioxin-binding transcription factor involved in the metabolism of different environmental toxicants in vertebrates. Since then, the variety of pathophysiological processes regulated by the AhR has grown, ranging from immune response, metabolic pathways, and aging. Many modulators of AhR activity may impact on aging and age-associated pathologies, but, whether their effects are AhR-dependent has never been explored. Here, using Caenorhabditis elegans, as an elective model organism for aging studies, we show for the first time that lack of CeAHR-1 can have opposite effects on health and lifespan in a context-dependent manner. Using known mammalian AhR modulators we found that, ahr-1 protects against environmental insults (benzo(a)pyrene and UVB light) and identified a new role for AhR-bacterial diet interaction in animal lifespan, stress resistance, and age-associated pathologies. We narrowed down the dietary factor to a bacterially extruded metabolite likely involved in tryptophan metabolism. This is the first study clearly establishing C. elegans as a good model organism to investigate evolutionarily conserved functions of AhR-modulators and -regulated processes, indicating it can be exploited to contribute to the discovery of novel information about AhR in mammals.
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Affiliation(s)
- Vanessa Brinkmann
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Alfonso Schiavi
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
| | - Anjumara Shaik
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
| | - Daniel Rüdiger Puchta
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Natascia Ventura
- Leibniz Institute for Environmental Medicine, Auf’m Hennekamp 50, 40225 Düsseldorf, Germany.,Institute of Clinical Chemistry and Laboratory Diagnostic, Heinrich Heine University Düsseldorf, Moorenstr 5, 40225 Düsseldorf, Germany
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40
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Phelan-Dickinson SJ, Palmer BC, Chen Y, DeLouise LA. The UVR Filter Octinoxate Modulates Aryl Hydrocarbon Receptor Signaling in Keratinocytes via Inhibition of CYP1A1 and CYP1B1. Toxicol Sci 2020; 177:188-201. [PMID: 32603427 DOI: 10.1093/toxsci/kfaa091] [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: 11/13/2022] Open
Abstract
Ultraviolet radiation (UVR) is a consistent part of the environment that has both beneficial and harmful effects on human health. UVR filters in the form of commercial sunscreens have been widely used to reduce the negative health effects of UVR exposure. Despite their benefit, literature suggests that some filters can penetrate skin and have off-target biological effects. We noted that many organic filters are hydrophobic and contain aromatic rings, making them potential modulators of Aryl hydrocarbon Receptor (AhR) signaling. We hypothesized that some filters may be able to act as agonists or antagonists on the AhR. Using a luciferase reporter cell line, we observed that the UVR filter octinoxate potentiated the ability of the known AhR ligand, 6-formylindolo[3,2-b]carbazole (FICZ), to activate the AhR. Cotreatments of keratinocytes with octinoxate and FICZ lead to increased levels of cytochrome P4501A1 (CYP1A1) and P4501B1 (CYP1B1) mRNA transcripts, in an AhR-dependent fashion. Mechanistic studies revealed that octinoxate is an inhibitor of CYP1A1 and CYP1B1, with IC50 values at approximately 1 µM and 586 nM, respectively. In vivo topical application of octinoxate and FICZ also elevated CYP1A1 and CYP1B1 mRNA levels in mouse skin. Our results show that octinoxate is able to indirectly modulate AhR signaling by inhibiting CYP1A1 and CYP1B1 enzyme function, which may have important downstream consequences for the metabolism of various compounds and skin integrity. It is important to continue studying the off-target effects of octinoxate and other UVR filters, because they are used on skin on a daily basis world-wide.
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Affiliation(s)
| | - Brian C Palmer
- Department of Environmental Medicine, University of Rochester Medical Center, New York 14642
| | - Yue Chen
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627
| | - Lisa A DeLouise
- Department of Environmental Medicine, University of Rochester Medical Center, New York 14642.,Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627.,Department of Dermatology, University of Rochester Medical Center, Rochester, New York 14642
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41
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Mengoni M, Braun AD, Gaffal E, Tüting T. The aryl hydrocarbon receptor promotes inflammation-induced dedifferentiation and systemic metastatic spread of melanoma cells. Int J Cancer 2020; 147:2902-2913. [PMID: 32790916 DOI: 10.1002/ijc.33252] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/21/2020] [Accepted: 07/24/2020] [Indexed: 12/15/2022]
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand binding-transcription factor of the basic helix-loop-helix family regulating multiple cellular functions such as differentiation, cell cycle, apoptosis, and inflammatory reactions. In neoplastic diseases, the AHR has been described to modulate proliferation and differentiation in dichotomous ways, either inhibiting or augmenting the growth of tumors. The precise role of AHR in melanoma is mostly unknown. Here, we report a functional effect of AHR activation on inflammation-induced melanoma cell dedifferentiation and the development of lung metastases in a mouse model. Via in silico analyses of "The Cancer Genome Atlas" human melanoma cohort, we detected a correlation between AHR expression levels and a dedifferentiated melanoma cell phenotype with an invasive gene signature, which we were able to functionally recapitulate in a panel of human melanoma cell lines. Both human and mouse melanoma cell lines upregulated AHR expression after inflammatory stimulation with tumor necrosis factor-α (TNF-α). Activation of AHR in human and mouse melanoma cell lines with the endogenous ligand formylindolo(3,2-b)carbazole (FICZ) promoted inflammation-induced dedifferentiation in vitro. Importantly, mouse melanoma cells with CRISPR/Cas9-mediated disruption of the AHR gene showed impaired in vivo tumor growth after transplantation in the skin as well as decreased numbers of spontaneous lung metastases. Taken together, our results demonstrate a functional role for AHR expression in melanoma development and metastatic progression. This provides a scientific basis for future experiments that further dissect the underlying molecular mechanisms and assess the potential for AHR inhibition as part of multimodal melanoma treatment strategies.
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Affiliation(s)
- Miriam Mengoni
- Laboratory for Experimental Dermatology, Department of Dermatology, University Hospital Magdeburg, Magdeburg, Germany
| | - Andreas Dominik Braun
- Laboratory for Experimental Dermatology, Department of Dermatology, University Hospital Magdeburg, Magdeburg, Germany
| | - Evelyn Gaffal
- Laboratory for Experimental Dermatology, Department of Dermatology, University Hospital Magdeburg, Magdeburg, Germany
| | - Thomas Tüting
- Laboratory for Experimental Dermatology, Department of Dermatology, University Hospital Magdeburg, Magdeburg, Germany
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42
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Mohamed SH, Elgiushy HR, Taha H, Hammad SF, Abou-Taleb NA, A M Abouzid K, Al-Sawaf H, Hassan Z. An investigative study of antitumor properties of a novel thiazolo[4,5-d]pyrimidine small molecule revealing superior antitumor activity with CDK1 selectivity and potent pro-apoptotic properties. Bioorg Med Chem 2020; 28:115633. [PMID: 32773088 DOI: 10.1016/j.bmc.2020.115633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/25/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023]
Abstract
New thiazolo[4,5-d]pyrimidine analogues were synthesized and biologically assessed in-vitro for their antineoplastic activity. The growth inhibitory effects of these compounds were assessed through the National Cancer Institute-United States of America (NCI-USA) anticancer screening program. Compound5(7-Chloro-3-(2,4-dimethoxyphenyl)-5-methylthiazolo[4,5-d]pyrimidine-2(3H)-thione) was found to have a potent and broad-spectrum cytotoxic action against NCI panel with GI50 (50% growth inhibition concentration) mean graph midpoint (MG-MID) = 2.88 µM. MTT assay was used to determine IC50 values of the most potent agent against HCT-116 colorectal carcinoma and WI-38 human lung fibroblast cell lines; 5.33 µM ± 0.69 and 21.69 µM ± 1.04, respectively. Flow cytometric analysis revealed that compound5triggered apoptosis and G2/M cell cycle arrest. The ability of compound5to inhibit CDK1 (Cyclin-Dependent Kinase 1)/Cyclin B complex was evaluated, and its IC50 value was 97 nM ± 2.33. Moreover, according to the gene expression analysis, compound5up-regulated p53, BAX, cytochrome c, caspases-3,-8 and-9 besides down-regulated Bcl-2. In conclusion, compound5exerted a potent pro-apoptotic activity through the activation of the intrinsic apoptotic pathway and arrested the cell cycle at the G2/M phase.
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Affiliation(s)
- Sameh H Mohamed
- Department of Biochemistry, Faculty of Pharmacy, Egyptian Russian University, Badr 11829, Cairo, Egypt.
| | - Hossam R Elgiushy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Helwan University, Ain Helwan 11795, Cairo, Egypt
| | - Heba Taha
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Ain Helwan 11795, Helwan, Cairo, Egypt
| | - Sherif F Hammad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Helwan University, Ain Helwan 11795, Cairo, Egypt; Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, 21934 Alexandria, Egypt
| | - Nageh A Abou-Taleb
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Helwan University, Ain Helwan 11795, Cairo, Egypt
| | - Khaled A M Abouzid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Abbassia 11566, Cairo, Egypt; Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, Egypt
| | - Hussein Al-Sawaf
- Department of Biochemistry, Faculty of Pharmacy, Egyptian Russian University, Badr 11829, Cairo, Egypt
| | - Zeinab Hassan
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Ain Helwan 11795, Helwan, Cairo, Egypt
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43
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von Koschembahr A, Youssef A, Béal D, Gudimard L, Giot JP, Douki T. Toxicity and DNA repair in normal human keratinocytes co-exposed to benzo[a]pyrene and sunlight. Toxicol In Vitro 2019; 63:104744. [PMID: 31836489 DOI: 10.1016/j.tiv.2019.104744] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/21/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022]
Abstract
Skin has the potential to be exposed to both solar UV radiation and polycyclic aromatic hydrocarbons, especially in occupational environments. In the present work, we investigated how benzo[a]pyrene (B[a]P) modulates cellular phototoxicity and impacts formation and repair of pyrimidine dimers induced by simulated sunlight (SSL) in normal human keratinocytes (NHK). We were especially interested in determining whether the aryl hydrocarbon receptor (AhR) was involved since it was recently shown to negatively impact repair. Addition of 1 μM B[a]P after exposure to 2 minimal erythemal doses of SSL had little impact on NHK. The inverse protocol involving incubation with B[a]P followed by irradiation led to a strong increase in phototoxicity. Repair of DNA photoproducts was drastically impaired. Using agonists and antagonists of AhR allowed us to conclude that this factor was not involved in these results. Observation of a strong increase in the level of the oxidative marker 8-oxo-7,8-dihydroguanine in the protocol involving B[a]P treatment followed by exposure to SSL strongly suggested that a photosensitized oxidative stress was responsible for cell death and inhibition of DNA repair. Accordingly, both adverse effects were diminished with a lower concentration of B[a]P and a lower SSL dose, leading to less oxidative stress.
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Affiliation(s)
- Anne von Koschembahr
- Univ. Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, F-38000 Grenoble, France
| | - Antonia Youssef
- Univ. Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, F-38000 Grenoble, France
| | - David Béal
- Univ. Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, F-38000 Grenoble, France
| | - Leslie Gudimard
- Univ. Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, F-38000 Grenoble, France
| | - Jean-Philippe Giot
- Service de Chirurgie Plastique et Maxillo-faciale, Centre Hospitalier Universitaire Grenoble Alpes, La Tronche, France
| | - Thierry Douki
- Univ. Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, F-38000 Grenoble, France.
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Wang ML, Zhong QY, Lin BQ, Liu YH, Huang YF, Chen Y, Yuan J, Su ZR, Zhan JYX. Andrographolide sodium bisulfate attenuates UV‑induced photo‑damage by activating the keap1/Nrf2 pathway and downregulating the NF‑κB pathway in HaCaT keratinocytes. Int J Mol Med 2019; 45:343-352. [PMID: 31789424 PMCID: PMC6984792 DOI: 10.3892/ijmm.2019.4415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022] Open
Abstract
Oxidative and inflammatory damage has been suggested to play important roles in the pathogenesis of skin photoaging. Andrographolide sodium bisulfate (ASB) is a soluble derivative of andrographolide and has known antioxidant and anti‑inflammatory properties. In the present study, cellular experiments were designed to investigate the molecular mechanisms underlying the effect of ASB in relieving ultraviolet (UV)‑induced photo‑damage. Following ASB pretreatment and UV irradiation, the apoptosis and necrosis of HaCaT cells were investigated by Hoechst 33342/propidium iodide staining. Reactive oxygen species (ROS) production was investigated using a DCFH‑DA fluorescence probe. Furthermore, the protein expression levels of p65, NF‑κB inhibitor‑α, nuclear factor E2‑related factor 2 (Nrf2) and kelch‑like ECH‑associated protein 1 (keap1) were measured via western blotting and immunofluorescence analyses. Furthermore, NF‑κB‑mediated cytokines were assessed by ELISA, and Nrf2‑mediated genes were detected by reverse transcription‑quantitative PCR. Pretreatment with ASB markedly increased cell viability, decreased cell apoptosis and decreased UV‑induced excess ROS levels. In addition, ASB activated the production of Nrf2 and increased the mRNA expression levels of glutamate‑cysteine ligase catalytic subunit and NAD(P)H quinone oxidoreductase 1, while ASB downregulated the protein expression of p65 and decreased the production of interleukin (IL)‑1β, IL‑6 and tumor necrosis factor‑α. These results suggested that ASB attenuates UV‑induced photo‑damage by activating the keap1/Nrf2 pathway and downregulating the NF‑κB pathway in HaCaT keratinocytes.
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Affiliation(s)
- Mei-Ling Wang
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Qing-Yuan Zhong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Bao-Qin Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yu-Hong Liu
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yan-Feng Huang
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yang Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Jie Yuan
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Zi-Ren Su
- Mathematical Engineering Academy of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Janis Ya-Xian Zhan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
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45
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Role of the Aryl Hydrocarbon Receptor in Environmentally Induced Skin Aging and Skin Carcinogenesis. Int J Mol Sci 2019; 20:ijms20236005. [PMID: 31795255 PMCID: PMC6928879 DOI: 10.3390/ijms20236005] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/22/2019] [Accepted: 11/27/2019] [Indexed: 12/19/2022] Open
Abstract
The skin is constantly exposed to a variety of environmental threats, including solar electromagnetic radiation, microbes, airborne particulate matter, and chemicals. Acute exposure to these environmental factors results in the activation of different signaling pathways that orchestrate adaptive stress responses to maintain cell and tissue homeostasis. Chronic exposure of skin to these factors, however, may lead to the accumulation of damaged macromolecules and loss of cell and tissue integrity, which, over time, may facilitate aging processes and the development of aging-related malignancies. One transcription factor that is expressed in all cutaneous cells and activated by various environmental stressors, including dioxins, polycyclic aromatic hydrocarbons, and ultraviolet radiation, is the aryl hydrocarbon receptor (AHR). By regulating keratinocyte proliferation and differentiation, epidermal barrier function, melanogenesis, and immunity, a certain degree of AHR activity is critical to maintain skin integrity and to adapt to acute stress situations. In contrast, a chronic activation of cutaneous AHR signaling critically contributes to premature aging and the development of neoplasms by affecting metabolism, extracellular matrix remodeling, inflammation, pigmentation, DNA repair, and apoptosis. This article provides an overview of the detrimental effects associated with sustained AHR activity in chronically stressed skin and pinpoints AHR as a promising target for chemoprevention.
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Hidaka T, Fujimura T, Aiba S. Aryl Hydrocarbon Receptor Modulates Carcinogenesis and Maintenance of Skin Cancers. Front Med (Lausanne) 2019; 6:194. [PMID: 31552251 PMCID: PMC6736988 DOI: 10.3389/fmed.2019.00194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/20/2019] [Indexed: 12/20/2022] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that responds to a wide range of chemicals, including chemical carcinogens such as dioxins and carcinogenic polyaromatic hydrocarbons, and induces a battery of genes associated with detoxification, proliferation, and immune regulation. Recent reports suggest that AHR plays an important role in carcinogenesis and maintenance of various types of skin cancers. Indeed, AHR is a susceptibility gene for squamous cell carcinoma and a prognostic factor for melanoma and Merkel cell carcinoma. In addition, the carcinogenic effects of ultraviolet (UV) and chemical carcinogens, both of which are major environmental carcinogenetic factors of skin, are at least partly mediated by AHR, which regulates UV-induced inflammation and apoptosis, the DNA repair system, and metabolic activation of chemical carcinogens. Furthermore, AHR modulates the efficacy of key therapeutic agents in melanoma. AHR activation induces the expression of resistance genes against the inhibitors of V600E mutated B-Raf proto-oncogene, serine/threonine kinase (BRAF) in melanoma and upregulation of programmed cell death protein 1 (PD-1) in tumor-infiltrating T cells surrounding melanoma. Taken together, these findings underscore the importance of AHR in the biology of skin cancers. Development of therapeutic agents that modulate AHR activity is a promising strategy to advance chemoprevention and chemotherapy for skin cancers.
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Affiliation(s)
- Takanori Hidaka
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Taku Fujimura
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Setsuya Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
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47
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Signaling Pathways, Chemical and Biological Modulators of Nucleotide Excision Repair: The Faithful Shield against UV Genotoxicity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4654206. [PMID: 31485292 PMCID: PMC6702832 DOI: 10.1155/2019/4654206] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/10/2019] [Indexed: 12/28/2022]
Abstract
The continuous exposure of the human body's cells to radiation and genotoxic stresses leads to the accumulation of DNA lesions. Fortunately, our body has several effective repair mechanisms, among which is nucleotide excision repair (NER), to counteract these lesions. NER includes both global genome repair (GG-NER) and transcription-coupled repair (TC-NER). Deficiencies in the NER pathway underlie the development of several DNA repair diseases, such as xeroderma pigmentosum (XP), Cockayne syndrome (CS), and trichothiodystrophy (TTD). Deficiencies in GG-NER and TC-NER render individuals to become prone to cancer and neurological disorders, respectively. Therefore, NER regulation is of interest in fine-tuning these risks. Distinct signaling cascades including the NFE2L2 (NRF2), AHR, PI3K/AKT1, MAPK, and CSNK2A1 pathways can modulate NER function. In addition, several chemical and biological compounds have proven success in regulating NER's activity. These modulators, particularly the positive ones, could therefore provide potential treatments for genetic DNA repair-based diseases. Negative modulators, nonetheless, can help sensitize cells to killing by genotoxic chemicals. In this review, we will summarize and discuss the major upstream signaling pathways and molecules that could modulate the NER's activity.
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Parrado C, Mercado-Saenz S, Perez-Davo A, Gilaberte Y, Gonzalez S, Juarranz A. Environmental Stressors on Skin Aging. Mechanistic Insights. Front Pharmacol 2019; 10:759. [PMID: 31354480 PMCID: PMC6629960 DOI: 10.3389/fphar.2019.00759] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022] Open
Abstract
The skin is the main barrier that protects us against environmental stressors (physical, chemical, and biological). These stressors, combined with internal factors, are responsible for cutaneous aging. Furthermore, they negatively affect the skin and increase the risk of cutaneous diseases, particularly skin cancer. This review addresses the impact of environmental stressors on skin aging, especially those related to general and specific external factors (lifestyle, occupation, pollutants, and light exposure). More specifically, we have evaluated ambient air pollution, household air pollutants from non-combustion sources, and exposure to light (ultraviolet radiation and blue and red light). We approach the molecular pathways involved in skin aging and pathology as a result of exposure to these external environmental stressors. Finally, we reflect on how components of environmental stress can interact with ultraviolet radiation to cause cell damage and the critical importance of knowing the mechanisms to develop new therapies to maintain the skin without damage in old age and to repair its diseases.
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Affiliation(s)
- Concepcion Parrado
- Department of Histology and Pathology, Faculty of Medicine, University of Málaga, Málaga, Spain
| | - Sivia Mercado-Saenz
- Department of Histology and Pathology, Faculty of Medicine, University of Málaga, Málaga, Spain
| | | | | | - Salvador Gonzalez
- Medicine and Medical Specialties Department, Alcala University, Madrid, Spain
| | - Angeles Juarranz
- Biology Department, Sciences School, Autonoma University, Madrid, Spain
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49
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Chiang TC, Koss B, Su LJ, Washam CL, Byrum SD, Storey A, Tackett AJ. Effect of Sulforaphane and 5-Aza-2'-Deoxycytidine on Melanoma Cell Growth. MEDICINES 2019; 6:medicines6030071. [PMID: 31252639 PMCID: PMC6789461 DOI: 10.3390/medicines6030071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 12/12/2022]
Abstract
Background: UV exposure-induced oxidative stress is implicated as a driving mechanism for melanoma. Increased oxidative stress results in DNA damage and epigenetic dysregulation. Accordingly, we explored whether a low dose of the antioxidant sulforaphane (SFN) in combination with the epigenetic drug 5-aza-2’-deoxycytidine (DAC) could slow melanoma cell growth. SFN is a natural bioactivated product of the cruciferous family, while DAC is a DNA methyltransferase inhibitor. Methods: Melanoma cell growth characteristics, gene transcription profiles, and histone epigenetic modifications were measured after single and combination treatments with SFN and DAC. Results: We detected melanoma cell growth inhibition and specific changes in gene expression profiles upon combinational treatments with SFN and DAC, while no significant alterations in histone epigenetic modifications were observed. Dysregulated gene transcription of a key immunoregulator cytokine—C-C motif ligand 5 (CCL-5)—was validated. Conclusions: These results indicate a potential combinatorial effect of a dietary antioxidant and an FDA-approved epigenetic drug in controlling melanoma cell growth.
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Affiliation(s)
- Tung-Chin Chiang
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Brian Koss
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - L Joseph Su
- Winthrop P. Rockefeller Cancer Institute, Cancer Prevention and Population Sciences Program & Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Charity L Washam
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA
| | - Stephanie D Byrum
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA
| | - Aaron Storey
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Alan J Tackett
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA.
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50
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Bernard JJ, Gallo RL, Krutmann J. Photoimmunology: how ultraviolet radiation affects the immune system. Nat Rev Immunol 2019; 19:688-701. [PMID: 31213673 DOI: 10.1038/s41577-019-0185-9] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2019] [Indexed: 02/07/2023]
Abstract
Ultraviolet (UV) radiation is a ubiquitous component of the environment that has important effects on a wide range of cell functions. Short-wavelength UVB radiation induces sunburn and is a potent immunomodulator, yet longer-wavelength, lower-energy UVA radiation also has effects on mammalian immunity. This Review discusses current knowledge regarding the mechanisms by which UV radiation can modify innate and adaptive immune responses and how this immunomodulatory capacity can be both beneficial in the case of inflammatory and autoimmune diseases, and detrimental in the case of skin cancer and the response to several infectious agents.
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Affiliation(s)
- Jamie J Bernard
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA. .,Division of Dermatology, Department of Medicine, Michigan State University, East Lansing, MI, USA.
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Jean Krutmann
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.,Medical Faculty, Heinrich Heine University, Duesseldorf, Germany
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