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Mosa FES, Alqahtani MA, El-Ghiaty MA, El-Mahrouk SR, Barakat K, El-Kadi AOS. Modulation of aryl hydrocarbon receptor activity by tyrosine kinase inhibitors (ponatinib and tofacitinib). Arch Biochem Biophys 2024; 759:110088. [PMID: 38992456 DOI: 10.1016/j.abb.2024.110088] [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: 03/11/2024] [Revised: 06/05/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Ponatinib and tofacitinib, established kinase inhibitors and FDA-approved for chronic myeloid leukemia and rheumatoid arthritis, are recently undergoing investigation in diverse clinical trials for potential repurposing. The aryl hydrocarbon receptor (AhR), a transcription factor influencing a spectrum of physiological and pathophysiological activities, stands as a therapeutic target for numerous diseases. This study employs molecular modelling tools and in vitro assays to identify ponatinib and tofacitinib as AhR ligands, elucidating their binding and molecular interactions in the AhR PAS-B domain. Molecular docking analyses revealed that ponatinib and tofacitinib occupy the central pocket within the primary cavity, similar to AhR agonists 2,3,7,8-tetrachlorodibenzodioxin (TCDD) and (benzo[a]pyrene) B[a]P. Our simulations also showed that these compounds exhibit good stability, stabilizing many hot spots within the PAS-B domain, including the Dα-Eα loop, which serves as a regulatory element for the binding pocket. Binding energy calculations highlighted ponatinib's superior predicted affinity, revealing F295 as a crucial residue in maintaining strong interaction with the two compounds. Our in vitro data suggest that ponatinib functions as an AhR antagonist, blocking the downstream signaling of AhR pathway induced by TCDD and B[a]P. Additionally, both tofacitinib and ponatinib cause impairment in AhR-regulated CYP1A1 enzyme activity induced by potent AhR agonists. This study unveils ponatinib and tofacitinib as potential modulators of AhR, providing valuable insights into their therapeutic roles in AhR-associated diseases and enhancing our understanding of the intricate relationship between kinase inhibitors and AhR.
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Affiliation(s)
- Farag E S Mosa
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Mohammed A Alqahtani
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Mahmoud A El-Ghiaty
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Sara R El-Mahrouk
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Khaled Barakat
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Ayman O S El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
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Maxwell A, Swanson G, Thy Nguyen A, Hu A, Richards D, You Y, Stephan L, Manaloto M, Liao A, Ding J, Mor G. Hydroquinone impairs trophoblast migration and invasion via AHR-twist-IFITM1 axis. Placenta 2024; 155:88-99. [PMID: 39173312 DOI: 10.1016/j.placenta.2024.07.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/21/2024] [Accepted: 07/31/2024] [Indexed: 08/24/2024]
Abstract
INTRODUCTION Embryo implantation is a tightly regulated process, critical for a successful pregnancy. After attachment of the blastocyst to the surface epithelium of the endometrium trophoblast migrate from the trophectoderm and invade into the stromal component of endometrium. Alterations on either process will lead to implantation failure or miscarriage. Volatile organic compounds (VOCs) such as benzene induce pregnancy complications, including preterm birth and miscarriages. The mechanism of this effect is unknown. The objective of this study was to elucidate the impact of benzene metabolite, Hydroquinone, on trophoblast function. We tested the hypothesis that Hydroquinone activates the Aryl hydrocarbon receptor (AhR) pathway modulating trophoblast migration and invasion. METHODS First-trimester trophoblast cells (Sw.71) were treated with hydroquinone (6 and 25 μM). Trophoblast migration and invasion was evaluated using a 3D invasion/migration model. Gene expression was quantified by q-PCR and Western blot analysis. RESULTS Hydroquinone impairs trophoblast migration and invasion. This loss is associated with the activation of the AhR pathway which reduced the expression of Twist1and IFITM1. IFITM1 overexpression can rescue impaired trophoblast migration. DISCUSSION Our study highlights that hydroquinone treatment induces the activation of the AhR pathway in trophoblast cells, which impairs trophoblast invasion and migration. We postulate that activation of the AhR pathway in trophoblast suppress Twist1 and a subsequent IFITM1. Thus, the AhR-Twist1-IFITM1 axis represent a critical pathway involved in the regulation of trophoblast migration and it is sensitive to benzene exposure. These findings provide crucial insights into the molecular mechanisms underlying pregnancy complications induced by air pollution.
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Affiliation(s)
- Anthony Maxwell
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Grace Swanson
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Annie Thy Nguyen
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Anna Hu
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Darby Richards
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Yuan You
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Laura Stephan
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Marcia Manaloto
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA
| | - Aihua Liao
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Jiahui Ding
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA; Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Gil Mor
- C.S Mott Center for Human Growth and Development, Wayne State University, Detroit, MI, USA; Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, USA.
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Ferrara F, Yan X, Pecorelli A, Guiotto A, Colella S, Pasqui A, Lynch S, Ivarsson J, Anderias S, Choudhary H, White S, Valacchi G. Combined exposure to UV and PM affect skin oxinflammatory responses and it is prevented by antioxidant mix topical application: Evidences from clinical study. J Cosmet Dermatol 2024; 23:2644-2656. [PMID: 38590207 DOI: 10.1111/jocd.16321] [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: 01/19/2024] [Revised: 03/23/2024] [Accepted: 04/01/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Exposure to environmental stressors like particulate matter (PM) and ultraviolet radiation (UV) induces cutaneous oxidative stress and inflammation and leads to skin barrier dysfunction and premature aging. Metals like iron or copper are abundant in PM and are known to contribute to reactive oxygen species (ROS) production. AIMS Although it has been suggested that topical antioxidants may be able to help in preventing and/or reducing outdoor skin damage, limited clinical evidence under real-life exposure conditions have been reported. The aim of the present study was to evaluate the ability of a topical serum containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol (CF Mix) to prevent oxinflammatory skin damage and premature aging induced by PM + UV in a human clinical trial. METHODS A 4-day single-blinded, clinical study was conducted on the back of 15 females (18-40 years old). During the 4 consecutive days, the back test zones were treated daily with or without the CF Mix, followed by with/without 2 h of PM and 5 min of UV daily exposure. RESULTS Application of the CF Mix prevented PM + UV-induced skin barrier perturbation (Involucrin and Loricrin), lipid peroxidation (4HNE), inflammatory markers (COX2, NLRP1, and AhR), and MMP9 activation. In addition, CF Mix was able to prevent Type I Collagen loss. CONCLUSION This is the first human study confirming multipollutant cutaneous damage and suggesting the utility of a daily antioxidant topical application to prevent pollution induced skin damage.
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Affiliation(s)
- Francesca Ferrara
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Xi Yan
- L'Oréal Research and Innovation, Clark, New Jersey, USA
| | - Alessandra Pecorelli
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy
| | - Anna Guiotto
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy
| | - Sante Colella
- Department of Biotechnology, Chemistry and Pharmaceutical Sciences, University of Siena, Siena, Italy
| | | | - Stephen Lynch
- L'Oréal Research and Innovation, Clark, New Jersey, USA
| | - John Ivarsson
- Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, North Carolina, USA
| | - Sara Anderias
- L'Oréal Research and Innovation, Clark, New Jersey, USA
| | | | | | - Giuseppe Valacchi
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy
- Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, North Carolina, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
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Xu X, Closson JD, Marcelino LP, Favaro DC, Silvestrini ML, Solazzo R, Chong LT, Gardner KH. Identification of small-molecule ligand-binding sites on and in the ARNT PAS-B domain. J Biol Chem 2024; 300:107606. [PMID: 39059491 DOI: 10.1016/j.jbc.2024.107606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Transcription factors are challenging to target with small-molecule inhibitors due to their structural plasticity and lack of catalytic sites. Notable exceptions include naturally ligand-regulated transcription factors, including our prior work with the hypoxia-inducible factor (HIF)-2 transcription factor, showing that small-molecule binding within an internal pocket of the HIF-2α Per-Aryl hydrocarbon Receptor Nuclear Translocator (ARNT)-Sim (PAS)-B domain can disrupt its interactions with its dimerization partner, ARNT. Here, we explore the feasibility of targeting small molecules to the analogous ARNT PAS-B domain itself, potentially opening a promising route to modulate several ARNT-mediated signaling pathways. Using solution NMR fragment screening, we previously identified several compounds that bind ARNT PAS-B and, in certain cases, antagonize ARNT association with the transforming acidic coiled-coil containing protein 3 transcriptional coactivator. However, these ligands have only modest binding affinities, complicating characterization of their binding sites. We address this challenge by combining NMR, molecular dynamics simulations, and ensemble docking to identify ligand-binding "hotspots" on and within the ARNT PAS-B domain. Our data indicate that the two ARNT/transforming acidic coiled-coil containing protein 3 inhibitors, KG-548 and KG-655, bind to a β-sheet surface implicated in both HIF-2 dimerization and coactivator recruitment. Furthermore, while KG-548 binds exclusively to the β-sheet surface, KG-655 can additionally bind within a water-accessible internal cavity in ARNT PAS-B. Finally, KG-279, while not a coactivator inhibitor, exemplifies ligands that preferentially bind only to the internal cavity. All three ligands promoted ARNT PAS-B homodimerization, albeit to varying degrees. Taken together, our findings provide a comprehensive overview of ARNT PAS-B ligand-binding sites and may guide the development of more potent coactivator inhibitors for cellular and functional studies.
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Affiliation(s)
- Xingjian Xu
- Structural Biology Initiative, CUNY Advanced Science Research Center, New York, New York, USA; PhD Program in Biochemistry, The Graduate Center, CUNY, New York, New York, USA
| | - Joseph D Closson
- Structural Biology Initiative, CUNY Advanced Science Research Center, New York, New York, USA; PhD Program in Biochemistry, The Graduate Center, CUNY, New York, New York, USA
| | | | - Denize C Favaro
- Structural Biology Initiative, CUNY Advanced Science Research Center, New York, New York, USA
| | - Marion L Silvestrini
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Riccardo Solazzo
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Bologna, Bologna, Italy
| | - Lillian T Chong
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kevin H Gardner
- Structural Biology Initiative, CUNY Advanced Science Research Center, New York, New York, USA; Department of Chemistry and Biochemistry, City College of New York, New York, New York, USA; PhD. Programs in Biochemistry, Chemistry and Biology, The Graduate Center, CUNY, New York, New York, USA.
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5
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Li MD, Chen LH, Xiang HX, Jiang YL, Lv BB, Xu DX, Zhao H, Fu L. Benzo[a]pyrene evokes epithelial-mesenchymal transition and pulmonary fibrosis through AhR-mediated Nrf2-p62 signaling. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134560. [PMID: 38759404 DOI: 10.1016/j.jhazmat.2024.134560] [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: 02/06/2024] [Revised: 04/16/2024] [Accepted: 05/05/2024] [Indexed: 05/19/2024]
Abstract
Benzo[a]pyrene (BaP) and its metabolic end product benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide (BPDE), are known toxic environmental pollutants. This study aimed to analyze whether sub-chronic BPDE exposure initiated pulmonary fibrosis and the potential mechanisms. In this work, male C57BL6/J mice were exposed to BPDE by dynamic inhalation exposure for 8 weeks. Our results indicated that sub-chronic BPDE exposure evoked pulmonary fibrosis and epithelial-mesenchymal transition (EMT) in mice. Both in vivo and in vitro, BPDE exposure promoted nuclear translocation of Snail. Further experiments indicated that nuclear factor erythroid 2-related factor 2 (Nrf2) and p62 were upregulated in BPDE-exposed alveolar epithelial cells. Moreover, Nrf2 siRNA transfection evidently attenuated BPDE-induced p62 upregulation. Besides, p62 shRNA inhibited BPDE-incurred Snail nuclear translocation and EMT. Mechanically, BPDE facilitated physical interaction between p62 and Snail in the nucleus, then repressed Snail protein degradation by p62-dependent autophagy-lysosome pathway, and finally upregulated transcriptional activity of Snail. Additionally, aryl hydrocarbon receptor (AhR) was activated in BPDE-treated alveolar epithelial cells. Dual-luciferase assay indicated activating AhR could bind to Nrf2 gene promoter. Moreover, pretreatment with CH223191 or α-naphthoflavone (α-NF), AhR antagonists, inhibited BPDE-activated Nrf2-p62 signaling, and alleviated BPDE-induced EMT and pulmonary fibrosis in mice. Taken together, AhR-mediated Nrf2-p62 signaling contributes to BaP-induced EMT and pulmonary fibrosis.
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Affiliation(s)
- Meng-Die Li
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Institute of Respiratory Diseases, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Li-Hong Chen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Institute of Respiratory Diseases, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Hui-Xian Xiang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Department of Respiratory and Critical Care Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, China
| | - Ya-Lin Jiang
- Department of Respiratory and Critical Care Medicine, Bozhou People's Hospital, Bozhou, Anhui 236800, China
| | - Bian-Bian Lv
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Institute of Respiratory Diseases, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, Anhui 230032, China.
| | - Hui Zhao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Institute of Respiratory Diseases, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Center for Big Data and Population Health of IHM, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China.
| | - Lin Fu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Institute of Respiratory Diseases, Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China.
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Gao Y, Liu KY, Xiao W, Xie X, Liang Q, Tu Z, Yang L, Yu H, Guo H, Huang S, Han X, Fu J, Zhou Y. Aryl hydrocarbon receptor confers protection against macrophage pyroptosis and intestinal inflammation through regulating polyamine biosynthesis. Theranostics 2024; 14:4218-4239. [PMID: 39113799 PMCID: PMC11303072 DOI: 10.7150/thno.95749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 06/27/2024] [Indexed: 08/10/2024] Open
Abstract
Rationale: The aryl hydrocarbon receptor (AhR) functions in the regulation of intestinal inflammation, but knowledge of the underlying mechanisms in innate immune cells is limited. Here, we investigated the role of AhR in modulating the functions of macrophages in inflammatory bowel disease pathogenesis. Methods: The cellular composition of intestinal lamina propria CD45+ leukocytes in a dextran sulfate sodium (DSS)-induced mouse colitis model was determined by single-cell RNA sequencing. Macrophage pyroptosis was quantified by analysis of lactate dehydrogenase release, propidium iodide staining, enzyme-linked immunosorbent assay, western blot, and flow cytometry. Differentially expressed genes were confirmed by RNA-seq, RT-qPCR, luciferase assay, chromatin immunoprecipitation, and immunofluorescence staining. Results: AhR deficiency mediated dynamic remodeling of the cellular composition of intestinal lamina propria (LP) CD45+ immune cells in a colitis model, with a significant increase in monocyte-macrophage lineage. Mice with AhR deficiency in myeloid cells developed more severe dextran sulfate sodium induced colitis, with concomitant increased macrophage pyroptosis. Dietary supplementation with an AhR pre-ligand, indole-3-carbinol, conferred protection against colitis while protection failed in mice lacking AhR in myeloid cells. Mechanistically, AhR signaling inhibited macrophage pyroptosis by promoting ornithine decarboxylase 1 (Odc1) transcription, to enhance polyamine biosynthesis. The increased polyamine, particularly spermine, inhibited NLRP3 inflammasome assembly and subsequent pyroptosis by suppressing K+ efflux. AHR expression was positively correlated with ODC1 in intestinal mucosal biopsies from patients with ulcerative colitis. Conclusions: These findings suggest a functional role for the AhR/ODC1/polyamine axis in maintaining intestinal homeostasis, providing potential targets for treatment of inflammatory bowel disease.
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Affiliation(s)
- Yajing Gao
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Kwei-Yan Liu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan
| | - Wenfeng Xiao
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Xueru Xie
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Qiuyan Liang
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Zikun Tu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Lan Yang
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Hongmiao Yu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Haiyan Guo
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Saihua Huang
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Xiao Han
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Jinrong Fu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Yufeng Zhou
- Department of Critical Care Medicine, Children's Hospital of Fudan University, National Children's Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
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Lin X, Peng Y, Guo Z, He W, Guo W, Feng J, Lu L, Liu Q, Xu P. Short-chain fatty acids suppresses astrocyte activation by amplifying Trp-AhR-AQP4 signaling in experimental autoimmune encephalomyelitis mice. Cell Mol Life Sci 2024; 81:293. [PMID: 38976012 PMCID: PMC11335219 DOI: 10.1007/s00018-024-05332-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/13/2024] [Accepted: 06/20/2024] [Indexed: 07/09/2024]
Abstract
The function of astrocytes in response to gut microbiota-derived signals has an important role in the pathophysiological processes of central nervous system (CNS) diseases. However, the specific effects of microbiota-derived metabolites on astrocyte activation have not been elucidated yet. Experimental autoimmune encephalomyelitis (EAE) was induced in female C57BL/6 mice as a classical MS model. The alterations of gut microbiota and the levels of short-chain fatty acids (SCFAs) were assessed after EAE induction. We observed that EAE mice exhibit low levels of Allobaculum, Clostridium_IV, Clostridium_XlVb, Lactobacillus genera, and microbial-derived SCFAs metabolites. SCFAs supplementation suppressed astrocyte activation by increasing the level of tryptophan (Trp)-derived AhR ligands that activating the AhR. The beneficial effects of SCFAs supplementation on the clinical scores, histopathological alterations, and the blood brain barrier (BBB)-glymphatic function were abolished by intracisterna magna injection of AAV-GFAP-shAhR. Moreover, SCFAs supplementation suppressed the loss of AQP4 polarity within astrocytes in an AhR-dependent manner. Together, SCFAs potentially suppresses astrocyte activation by amplifying Trp-AhR-AQP4 signaling in EAE mice. Our study demonstrates that SCFAs supplementation may serve as a viable therapy for inflammatory disorders of the CNS.
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MESH Headings
- Animals
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Astrocytes/metabolism
- Astrocytes/drug effects
- Fatty Acids, Volatile/pharmacology
- Fatty Acids, Volatile/metabolism
- Receptors, Aryl Hydrocarbon/metabolism
- Mice
- Mice, Inbred C57BL
- Tryptophan/metabolism
- Tryptophan/pharmacology
- Female
- Signal Transduction/drug effects
- Aquaporin 4/metabolism
- Aquaporin 4/genetics
- Gastrointestinal Microbiome/drug effects
- Blood-Brain Barrier/metabolism
- Blood-Brain Barrier/drug effects
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Affiliation(s)
- Xiuli Lin
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
- Department of Neurology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Yufeng Peng
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
| | - Zhimei Guo
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
| | - Wuhui He
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenyuan Guo
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
| | - Junmin Feng
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
| | - Lin Lu
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China
| | - Qin Liu
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China.
| | - Pingyi Xu
- Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, Guangdong, China.
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Silverberg JI, Boguniewicz M, Quintana FJ, Clark RA, Gross L, Hirano I, Tallman AM, Brown PM, Fredericks D, Rubenstein DS, McHale KA. Tapinarof validates the aryl hydrocarbon receptor as a therapeutic target: A clinical review. J Allergy Clin Immunol 2024; 154:1-10. [PMID: 38154665 DOI: 10.1016/j.jaci.2023.12.013] [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: 08/10/2023] [Revised: 11/09/2023] [Accepted: 12/08/2023] [Indexed: 12/30/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor that has wide-ranging roles, including regulation of inflammation and homeostasis. AhR is not a cell surface receptor; rather, it exists in a cytoplasmic complex that responds to a wide variety of structurally dissimilar endogenous, microbial, and environmental ligands. The ubiquitous expression of AhR, its ability to be activated by a wide range of ligands, and its capacity to act as a master regulator for gene expression and homeostasis make it a promising new therapeutic target. Clinical trials of tapinarof cream have now validated AhR agonism as a therapeutic approach that can deliver significant efficacy for treating inflammatory skin diseases, including psoriasis and atopic dermatitis. Tapinarof 1% cream is a first-in-class, nonsteroidal, topical, AhR agonist with a pharmacokinetic profile that results in localized exposure at sites of disease, avoiding systemic safety concerns, drug interactions, or off-target effects. Psoriasis and atopic dermatitis both involve epidermal inflammation, cellular immune responses, dysregulation of skin barrier protein expression, and oxidative stress. On the basis of the clinical effectiveness of tapinarof cream for treating inflammatory skin diseases, we review how targeting AhR may offer a significant opportunity in other conditions that share key aspects of pathogenesis, including asthma, inflammatory bowel disease, eosinophilic esophagitis, ophthalmic, and nervous system diseases.
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Affiliation(s)
| | - Mark Boguniewicz
- Division of Allergy-Immunology, Department of Pediatrics, National Jewish Health and University of Colorado School of Medicine, Denver, Colo
| | - Francisco J Quintana
- Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | | | - Lara Gross
- Dallas Allergy and Asthma Center, and the Allergy and Immunology Division, Baylor University Medical Center, Dallas, Tex
| | - Ikuo Hirano
- Northwestern University Feinberg School of Medicine, Chicago, Ill
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9
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Grishanova AY, Perepechaeva ML. Kynurenic Acid/AhR Signaling at the Junction of Inflammation and Cardiovascular Diseases. Int J Mol Sci 2024; 25:6933. [PMID: 39000041 PMCID: PMC11240928 DOI: 10.3390/ijms25136933] [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: 05/20/2024] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Persistent systemic chronic inflammatory conditions are linked with many pathologies, including cardiovascular diseases (CVDs), a leading cause of death across the globe. Among various risk factors, one of the new possible contributors to CVDs is the metabolism of essential amino acid tryptophan. Proinflammatory signals promote tryptophan metabolism via the kynurenine (KYN) pathway (KP), thereby resulting in the biosynthesis of several immunomodulatory metabolites whose biological effects are associated with the development of symptoms and progression of various inflammatory diseases. Some participants in the KP are agonists of aryl hydrocarbon receptor (AhR), a central player in a signaling pathway that, along with a regulatory influence on the metabolism of environmental xenobiotics, performs a key immunomodulatory function by triggering various cellular mechanisms with the participation of endogenous ligands to alleviate inflammation. An AhR ligand with moderate affinity is the central metabolite of the KP: KYN; one of the subsequent metabolites of KYN-kynurenic acid (KYNA)-is a more potent ligand of AhR. Understanding the role of AhR pathway-related metabolites of the KP that regulate inflammatory factors in cells of the cardiovascular system is interesting and important for achieving effective treatment of CVDs. The purpose of this review was to summarize the results of studies about the participation of the KP metabolite-KYNA-and of the AhR signaling pathway in the regulation of inflammation in pathological conditions of the heart and blood vessels and about the possible interaction of KYNA with AhR signaling in some CVDs.
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Affiliation(s)
| | - Maria L. Perepechaeva
- Institute of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, Novosibirsk 630060, Russia;
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10
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Buchynskyi M, Oksenych V, Kamyshna I, Vorobets I, Halabitska I, Kamyshnyi O. Modulatory Roles of AHR, FFAR2, FXR, and TGR5 Gene Expression in Metabolic-Associated Fatty Liver Disease and COVID-19 Outcomes. Viruses 2024; 16:985. [PMID: 38932276 PMCID: PMC11209102 DOI: 10.3390/v16060985] [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: 05/15/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Metabolic-associated fatty liver disease (MAFLD) is a risk factor for severe COVID-19. This study explores the potential influence of gut hormone receptor and immune response gene expression on COVID-19 outcomes in MAFLD patients. METHODS We investigated gene expression levels of AHR, FFAR2, FXR, and TGR5 in patients with MAFLD and COVID-19 compared to controls. We examined associations between gene expression and clinical outcomes. RESULTS COVID-19 patients displayed altered AHR expression, potentially impacting immune response and recovery. Downregulated AHR in patients with MAFLD correlated with increased coagulation parameters. Elevated FFAR2 expression in patients with MAFLD was linked to specific immune cell populations and hospital stay duration. A significantly lower FXR expression was observed in both MAFLD and severe COVID-19. CONCLUSION Our findings suggest potential modulatory roles for AHR, FFAR2, and FXR in COVID-19 and MAFLD.
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Affiliation(s)
- Mykhailo Buchynskyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Valentyn Oksenych
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, 5020 Bergen, Norway
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Ihor Vorobets
- Ophthalmology Clinic “Vizex”, Naukova St. 96B, 79060 Lviv, Ukraine
| | - Iryna Halabitska
- Department of Therapy and Family Medicine, I. Horbachevsky Ternopil National Medical University, Voli Square, 1, 46001 Ternopil, Ukraine;
| | - Oleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
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11
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Liao Z, Zeng X, Guo X, Shi Q, Tang Z, Li P, Chen C, Chen M, Chen J, Xu J, Cai Y. Targeting the aryl hydrocarbon receptor with FICZ regulates IL-2 and immune infiltration to alleviate Hashimoto's thyroiditis in mice. Eur J Pharmacol 2024; 973:176588. [PMID: 38621508 DOI: 10.1016/j.ejphar.2024.176588] [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: 03/25/2024] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
Hashimoto's thyroiditis (HT) is the most frequent autoimmune disorder. Growing work points to the involvement of aryl hydrocarbon receptor (AhR), a ligand-dependent transcription factor, in the regulation of immune homeostasis. However, the roles of AhR and its ligands in HT remains unclear. In this study, we leveraged public human database analyses to postulate that the AhR expression was predominantly in thyroid follicular cells, correlating significantly with the thyroid infiltration levels of multiple immune cells in HT patients. Using a thyroglobulin-induced HT mouse model and in vitro thyroid follicular epithelial cell cultures, we found a significant downregulation of AhR expression in thyrocytes both in vivo and in vitro. Conversely, activating AhR by FICZ, a natural AhR ligand, mitigated inflammation and apoptosis in thyrocytes in vitro and conferred protection against HT in mice. RNA sequencing (RNA-seq) of thyroid tissues indicated that AhR activation moderated HT-associated immune or inflammatory signatures. Further, immunoinfiltration analysis indicated that AhR activation regulated immune cell infiltration in the thyroid of HT mice, such as suppressing cytotoxic CD8+ T cell infiltration and promoting anti-inflammatory M2 macrophage polarization. Concomitantly, the expression levels of interleukin-2 (IL-2), a lymphokine that downregulates immune responses, were typically decreased in HT but restored upon AhR activation. In silico validation substantiated the binding interaction between AhR and IL-2. In conclusion, targeting the AhR with FICZ regulates IL-2 and immune infiltration to alleviate experimental HT, shedding new light on the therapeutic intervention of this prevalent disease.
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Affiliation(s)
- Zhengzheng Liao
- Department of Pharmacy, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Xianzhong Zeng
- Department of Endocrinology, Ganzhou People's Hospital, Ganzhou, 341000, People's Republic of China
| | - Xiaoling Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Qing Shi
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Ziyun Tang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Ping Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China
| | - Cuiyun Chen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China
| | - Mengxia Chen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China
| | - Jianrong Chen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China
| | - Jixiong Xu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China.
| | - Yaojun Cai
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China; Jiangxi Clinical Research Center for Endocrine and Metabolic Disease, Nanchang, 330006, People's Republic of China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, People's Republic of China.
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12
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Xu X, Closson J, Marcelino LP, Favaro DC, Silvestrini ML, Solazzo R, Chong LT, Gardner KH. Identification of Small Molecule Ligand Binding Sites On and In the ARNT PAS-B Domain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.03.565595. [PMID: 37961463 PMCID: PMC10635134 DOI: 10.1101/2023.11.03.565595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Transcription factors are generally challenging to target with small molecule inhibitors due to their structural plasticity and lack of catalytic sites. Notable exceptions include several naturally ligand-regulated transcription factors, including our prior work with the heterodimeric HIF-2 transcription factor which showed that small molecule binding within an internal pocket of the HIF-2α PAS-B domain can disrupt its interactions with its dimerization partner, ARNT. Here, we explore the feasibility of similarly targeting small molecules to the analogous ARNT PAS-B domain itself, potentially opening a promising route to simultaneously modulate several ARNT-mediated signaling pathways. Using solution NMR screening of an in-house fragment library, we previously identified several compounds that bind ARNT PAS-B and, in certain cases, antagonize ARNT association with the TACC3 transcriptional coactivator. However, these ligands have only modest binding affinities, complicating characterization of their binding sites. We address this challenge by combining NMR, MD simulations, and ensemble docking to identify ligand-binding 'hotspots' on and within the ARNT PAS-B domain. Our data indicate that the two ARNT/TACC3 inhibitors, KG-548 and KG-655, bind to a β-sheet surface implicated in both HIF-2 dimerization and coactivator recruitment. Furthermore, while KG-548 binds exclusively to the β-sheet surface, KG-655 can additionally bind within a water-accessible internal cavity in ARNT PAS-B. Finally, KG-279, while not a coactivator inhibitor, exemplifies ligands that preferentially bind only to the internal cavity. All three ligands promoted ARNT PAS-B homodimerization, albeit to varying degrees. Taken together, our findings provide a comprehensive overview of ARNT PAS-B ligand-binding sites and may guide the development of more potent coactivator inhibitors for cellular and functional studies.
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13
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Rajan RK, Engels M, Ramanathan M. Predicting phase-I metabolism of piceatannol: an in silico study. In Silico Pharmacol 2024; 12:52. [PMID: 38854674 PMCID: PMC11153392 DOI: 10.1007/s40203-024-00228-x] [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: 08/30/2023] [Accepted: 05/28/2024] [Indexed: 06/11/2024] Open
Abstract
Piceatannol is a natural compound found in plants and can be derived from resveratrol. While resveratrol has been extensively researched for its effects and how the body processes it, there are concerns about its use. These concerns include its limited absorption in the body, the need for specific dosages, potential interactions with other drugs, lack of standardization, and limited clinical evidence to support its benefits. Interestingly, Piceatannol, another compound derived from resveratrol, has received less attention from researchers but appears to offer advantages. It has better bioavailability and seems to have a more favorable therapeutic profile compared to resveratrol. Surprisingly, no previous attempts have been made to explore or predict the metabolites of piceatannol when it interacts with the enzyme cytochrome P450. This study aims to fill that gap by predicting how piceatannol is metabolized by cytochrome P450 and assessing any potential toxicity associated with its metabolites. This research is interesting because it's the first of its kind to investigate the metabolic fate of piceatannol, especially in the context of cytochrome P450. The findings have the potential to significantly contribute to the field of piceatannol research, particularly in the food industry where this compound has applications and implications. Graphical abstract
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Affiliation(s)
- Ravi Kumar Rajan
- Department of Pharmacology, School of Pharmaceutical Sciences, Girijananda Chowdhury University, Tezpur Campus, Tezpur, Assam India
- Present Address: Department of Pharmacology, Himalayan Pharmacy Institute, Majitar, East Sikkim 737136 India
| | - Maida Engels
- Department of Pharmaceutical Chemistry, PSG College of Pharmacy, Coimbatore, Tamil Nadu India
| | - Muthiah Ramanathan
- Department of Pharmacology, PSG College of Pharmacy, Coimbatore, Tamil Nadu India
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14
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Ma Q, Wen X, Xu G. The causal association of specific gut microbiota on the risk of membranous nephropathy: a Mendelian randomization study. Int Urol Nephrol 2024; 56:2021-2030. [PMID: 38180581 DOI: 10.1007/s11255-023-03926-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024]
Abstract
PURPOSE Gut microbiota transplantation has been reported to improve the renal function of membranous nephropathy (MN). However, whether there is a causal effect of gut microbiota on MN remained unclear. METHODS We performed two-sample Mendelian randomization (MR) analysis. The inverse variance weighted (IVW) method was used as the main approach to evaluate the causal relationship between gut microbiota and MN. Additional methods including MR-Egger regression, weighted median, and MR-weighted mode were also conducted. Cochrane's Q test, MR-Egger regression, and MR-PRESSO were employed to detect heterogeneity and pleiotropy, respectively. RESULTS A total of 196 gut microbiota were examined. After IVW and sensitivity analysis, eight gut bacteria taxa were observed causal effects on the risk of MN. Specifically, Genus. Oscillibacter was a protective factor (OR: 0.57; 95% CI 0.328-0.979; P = 0.042), while Class. Melainabacteria (OR: 1.51; 95% CI 1.004-2.277; P = 0.048), Genus. Butyricicoccus (OR: 2.16; 95% CI 1.005-4.621; P = 0.048), Genus. Catenibacterium (OR: 1.49; 95% CI 1.043-2.134; P = 0.028), Genus.Ruminiclostridium5 (OR: 1.74; 95% CI 1.053-2.862; P = 0.030), Genus. Ruminococcaceae UCG-003 (OR: 1.73; 95% CI 1.110-2.692; P = 0.015), Order. Bacillales (OR: 1.52; 95% CI 1.135-2.025; P = 0.0048) and Order. Gastranaerophilales (OR: 1.45; 95% CI 1.010-2.085; P = 0.044) were risk factors. Heterogeneity was not significant for most single-nucleotide polymorphisms, and no statistical difference in pleiotropy. CONCLUSIONS This study first indicated the causal association between specific gut microbiota and MN, which would be of great significance to guide clinical prevention and treatment in MN.
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Affiliation(s)
- Qiqi Ma
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Xiaoli Wen
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Gaosi Xu
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, Jiangxi, 330006, People's Republic of China.
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15
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Dehhaghi M, Heydari M, Panahi HKS, Lewin SR, Heng B, Brew BJ, Guillemin GJ. The roles of the kynurenine pathway in COVID-19 neuropathogenesis. Infection 2024:10.1007/s15010-024-02293-y. [PMID: 38802702 DOI: 10.1007/s15010-024-02293-y] [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: 03/07/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the highly contagious respiratory disease Corona Virus Disease 2019 (COVID-19) that may lead to various neurological and psychological disorders that can be acute, lasting days to weeks or months and possibly longer. The latter is known as long-COVID or more recently post-acute sequelae of COVID (PASC). During acute COVID-19 infection, a strong inflammatory response, known as the cytokine storm, occurs in some patients. The levels of interferon-γ (IFN-γ), interferon-β (IFN-β), interleukin-6 (IL-6) and tumour necrosis factor-alpha (TNF-α) are particularly increased. These cytokines are known to activate the enzyme indoleamine 2,3-dioxygenase 1 (IDO-1), catalysing the first step of tryptophan (Trp) catabolism through the kynurenine pathway (KP) leading to the production of several neurotoxic and immunosuppressive metabolites. There is already data showing elevation in KP metabolites both acutely and in PASC, especially regarding cognitive impairment. Thus, it is likely that KP involvement is significant in SARS-CoV-2 pathogenesis especially neurologically.
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Affiliation(s)
- Mona Dehhaghi
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Mostafa Heydari
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran
| | - Hamed Kazemi Shariat Panahi
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Sharon R Lewin
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Victorian Infectious Diseases Service, The Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Department of Infectious Diseases, The Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - Benjamin Heng
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia.
| | - Bruce J Brew
- Peter Duncan Neurosciences Unit, St. Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia.
- Faculty of Medicine and Health, School of Clinical Medicine, UNSW Sydney, NSW, Australia.
- Departments of Neurology and Immunology, St. Vincent's Hospital, Sydney, NSW, Australia.
- University of Notre Dame, Darlinghurst, Sydney, NSW, Australia.
| | - Gilles J Guillemin
- Peter Duncan Neurosciences Unit, St. Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Pertanian Bogor University, Bogor, Indonesia
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16
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Wieser NV, Ghiboub M, Verseijden C, van Goudoever JB, Schoonderwoerd A, de Meij TGJ, Niemarkt HJ, Davids M, Lefèvre A, Emond P, Derikx JPM, de Jonge WJ, Sovran B. Exploring the Immunomodulatory Potential of Human Milk: Aryl Hydrocarbon Receptor Activation and Its Impact on Neonatal Gut Health. Nutrients 2024; 16:1531. [PMID: 38794769 PMCID: PMC11124328 DOI: 10.3390/nu16101531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Several metabolites of the essential amino acid tryptophan have emerged as key players in gut homeostasis through different cellular pathways, particularly through metabolites which can activate the aryl hydrocarbon receptor (AHR). This study aimed to map the metabolism of tryptophan in early life and investigate the effects of specific metabolites on epithelial cells and barrier integrity. Twenty-one tryptophan metabolites were measured in the feces of full-term and preterm neonates as well as in human milk and formula. The ability of specific AHR metabolites to regulate cytokine-induced IL8 expression and maintain barrier integrity was assessed in Caco2 cells and human fetal organoids (HFOs). Overall, higher concentrations of tryptophan metabolites were measured in the feces of full-term neonates compared to those of preterm ones. Within AHR metabolites, indole-3-lactic acid (ILA) was significantly higher in the feces of full-term neonates. Human milk contained different levels of several tryptophan metabolites compared to formula. Particularly, within the AHR metabolites, indole-3-sulfate (I3S) and indole-3-acetic acid (IAA) were significantly higher compared to formula. Fecal-derived ILA and milk-derived IAA were capable of reducing TNFα-induced IL8 expression in Caco2 cells and HFOs in an AHR-dependent manner. Furthermore, fecal-derived ILA and milk-derived IAA significantly reduced TNFα-induced barrier disruption in HFOs.
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Affiliation(s)
- Naomi V. Wieser
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, 1105 BK Amsterdam, The Netherlands; (M.G.); (C.V.); (W.J.d.J.)
| | - Mohammed Ghiboub
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, 1105 BK Amsterdam, The Netherlands; (M.G.); (C.V.); (W.J.d.J.)
- Amsterdam Gastroenterology, Endocrinology, Metabolism (AGEM), 1105 AZ Amsterdam, The Netherlands;
- Department of Pediatric Surgery, Emma Children’s Hospital, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
| | - Caroline Verseijden
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, 1105 BK Amsterdam, The Netherlands; (M.G.); (C.V.); (W.J.d.J.)
- Amsterdam Gastroenterology, Endocrinology, Metabolism (AGEM), 1105 AZ Amsterdam, The Netherlands;
| | - Johannes B. van Goudoever
- Department of Pediatrics, Emma Children’s Hospital, Dutch National Human Milk Bank, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (J.B.v.G.); (A.S.)
| | - Anne Schoonderwoerd
- Department of Pediatrics, Emma Children’s Hospital, Dutch National Human Milk Bank, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (J.B.v.G.); (A.S.)
| | - Tim G. J. de Meij
- Amsterdam Gastroenterology, Endocrinology, Metabolism (AGEM), 1105 AZ Amsterdam, The Netherlands;
- Department of Pediatric Gastroenterology, Vrije Universiteit University Medical Center, 1081 HV Amsterdam, The Netherlands
| | - Hendrik J. Niemarkt
- Department of Neonatology, Maxima Medical Center, De Run 4600, 5504 DB Veldhoven, The Netherlands;
- Department of Electrical Engineering, Technical University Eindhoven, Groene Loper 3, 5612 AE Eindhoven, The Netherlands
| | - Mark Davids
- Department of Experimental Vascular Medicine, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Antoine Lefèvre
- UMR 1253, iBrain, University of Tours, Inserm, 37044 Tours, France; (A.L.); (P.E.)
| | - Patrick Emond
- UMR 1253, iBrain, University of Tours, Inserm, 37044 Tours, France; (A.L.); (P.E.)
- In Vitro Nuclear Medicine Laboratory, Regional University Hospital Center of Tours University, 37044 Tours, France
| | - Joep P. M. Derikx
- Department of Pediatric Surgery, Emma Children’s Hospital, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
| | - Wouter J. de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, 1105 BK Amsterdam, The Netherlands; (M.G.); (C.V.); (W.J.d.J.)
- Amsterdam Gastroenterology, Endocrinology, Metabolism (AGEM), 1105 AZ Amsterdam, The Netherlands;
- Department of Surgery, University Hospital Bonn, 53113 Bonn, Germany
| | - Bruno Sovran
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, 1105 BK Amsterdam, The Netherlands; (M.G.); (C.V.); (W.J.d.J.)
- Department of Pediatric Surgery, Emma Children’s Hospital, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Emma Center for Personalized Medicine, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
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17
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Zhou S, Li J, Ying T, Wang Y, Wang Q, Li X, Zhao F. StemRegenin 1 attenuates the RANKL-induced osteoclastogenesis via inhibiting AhR- c-src-NF-κB/p-ERK MAPK-NFATc1 signaling pathway. iScience 2024; 27:109682. [PMID: 38660403 PMCID: PMC11039397 DOI: 10.1016/j.isci.2024.109682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/20/2023] [Accepted: 04/03/2024] [Indexed: 04/26/2024] Open
Abstract
The aryl hydrocarbon receptor (AhR) pathway may play an important role in the regulation of osteoclasts, but there are still conflicting studies on this aspect, and the specific mechanism of action has not been fully elucidated. Therefore, we conducted this study to find a drug to treat osteoporosis that targets AhR. We found that StemRegenin 1 inhibited RANKL-induced osteoclastogenesis in a concentration-dependent and time-dependent manner. Through further experiments, we found that SR1 can inhibit nuclear transcription of AhR and inhibit c-src phosphorylation, and ultimately regulates the activation of the NF-κB and p-ERK/mitogen-activated protein kinase pathways. Therefore, for the first time, we discovered the way in which the AhR-c-src-NF-κB/p-ERK MAPK-NFATc1 signaling pathway regulates the expression of osteoclast differentiation-associated proteins. Finally, SR1 was shown to successfully reverse bone loss in OVX mice. These studies provide us with ideas for finding new way to treat osteoporosis.
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Affiliation(s)
- Shengji Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Jiarui Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Tiantian Ying
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yuxin Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Quan Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Xiang Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Fengchao Zhao
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
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18
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Vyavahare S, Ahluwalia P, Gupta SK, Kolhe R, Hill WD, Hamrick M, Isales CM, Fulzele S. The Role of Aryl Hydrocarbon Receptor in Bone Biology. Int J Tryptophan Res 2024; 17:11786469241246674. [PMID: 38757095 PMCID: PMC11097734 DOI: 10.1177/11786469241246674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 03/25/2024] [Indexed: 05/18/2024] Open
Abstract
Aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor, is crucial in maintaining the skeletal system. Our study focuses on encapsulating the role of AhR in bone biology and identifying novel signaling pathways in musculoskeletal pathologies using the GEO dataset. The GEO2R analysis identified 8 genes (CYP1C1, SULT6B1, CYB5A, EDN1, CXCR4B, CTGFA, TIPARP, and CXXC5A) involved in the AhR pathway, which play a pivotal role in bone remodeling. The AhR knockout in hematopoietic stem cells showed alteration in several novel bone-related transcriptomes (eg, Defb14, ZNF 51, and Chrm5). Gene Ontology Enrichment Analysis demonstrated 54 different biological processes associated with bone homeostasis. Mainly, these processes include bone morphogenesis, bone development, bone trabeculae formation, bone resorption, bone maturation, bone mineralization, and bone marrow development. Employing Functional Annotation and Clustering through DAVID, we further uncovered the involvement of the xenobiotic metabolic process, p450 pathway, oxidation-reduction, and nitric oxide biosynthesis process in the AhR signaling pathway. The conflicting evidence of current research of AhR signaling on bone (positive and negative effects) homeostasis may be due to variations in ligand binding affinity, binding sites, half-life, chemical structure, and other unknown factors. In summary, our study provides a comprehensive understanding of the underlying mechanisms of the AhR pathway in bone biology.
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Affiliation(s)
- Sagar Vyavahare
- Department of Medicine, Augusta University, Augusta, GA, USA
| | | | | | - Ravindra Kolhe
- Department of Pathology, Augusta University, Augusta, GA, USA
| | - William D Hill
- Department of Pathology, Medical University of South Carolina, Charleston, SC, USA
| | - Mark Hamrick
- Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, USA
- Center for Healthy Aging, Augusta University, Augusta, GA, USA
| | - Carlos M Isales
- Department of Medicine, Augusta University, Augusta, GA, USA
- Center for Healthy Aging, Augusta University, Augusta, GA, USA
| | - Sadanand Fulzele
- Department of Medicine, Augusta University, Augusta, GA, USA
- Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, USA
- Center for Healthy Aging, Augusta University, Augusta, GA, USA
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19
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Ito T. Protein degraders - from thalidomide to new PROTACs. J Biochem 2024; 175:507-519. [PMID: 38140952 DOI: 10.1093/jb/mvad113] [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: 11/15/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Recently, the development of protein degraders (protein-degrading compounds) has prominently progressed. There are two remarkable classes of protein degraders: proteolysis-targeting chimeras (PROTACs) and molecular glue degraders (MGDs). Almost 70 years have passed since thalidomide was initially developed as a sedative-hypnotic drug, which is currently recognized as one of the most well-known MGDs. During the last two decades, a myriad of PROTACs and MGDs have been developed, and the molecular mechanism of action (MOA) of thalidomide was basically elucidated, including identifying its molecular target cereblon (CRBN). CRBN forms a Cullin Ring Ligase 4 with Cul4 and DDB1, whose substrate specificity is controlled by its binding ligands. Thalidomide, lenalidomide and pomalidomide, three CRBN-binding MGDs, were clinically approved to treat several intractable diseases (including multiple myeloma). Several other MGDs and CRBN-based PROTACs (ARV-110 and AVR-471) are undergoing clinical trials. In addition, several new related technologies regarding PROTACs and MGDs have also been developed, and achievements of protein degraders impact not only therapeutic fields but also basic biological science. In this article, I introduce the history of protein degraders, from the development of thalidomide to the latest PROTACs and related technologies.
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Affiliation(s)
- Takumi Ito
- Institute of Medical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
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20
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Tain YL, Hsu CN. The Impact of the Aryl Hydrocarbon Receptor on Antenatal Chemical Exposure-Induced Cardiovascular-Kidney-Metabolic Programming. Int J Mol Sci 2024; 25:4599. [PMID: 38731818 PMCID: PMC11083012 DOI: 10.3390/ijms25094599] [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: 03/31/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
Early life exposure lays the groundwork for the risk of developing cardiovascular-kidney-metabolic (CKM) syndrome in adulthood. Various environmental chemicals to which pregnant mothers are commonly exposed can disrupt fetal programming, leading to a wide range of CKM phenotypes. The aryl hydrocarbon receptor (AHR) has a key role as a ligand-activated transcription factor in sensing these environmental chemicals. Activating AHR through exposure to environmental chemicals has been documented for its adverse impacts on cardiovascular diseases, hypertension, diabetes, obesity, kidney disease, and non-alcoholic fatty liver disease, as evidenced by both epidemiological and animal studies. In this review, we compile current human evidence and findings from animal models that support the connection between antenatal chemical exposures and CKM programming, focusing particularly on AHR signaling. Additionally, we explore potential AHR modulators aimed at preventing CKM syndrome. As the pioneering review to present evidence advocating for the avoidance of toxic chemical exposure during pregnancy and deepening our understanding of AHR signaling, this has the potential to mitigate the global burden of CKM syndrome in the future.
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Affiliation(s)
- You-Lin Tain
- Division of Pediatric Nephrology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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21
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Schustak J, Han H, Bond K, Huang Q, Saint-Geniez M, Bao Y. Phenotypic high-throughput screening identifies aryl hydrocarbon receptor agonism as common inhibitor of toxin-induced retinal pigment epithelium cell death. PLoS One 2024; 19:e0301239. [PMID: 38635505 PMCID: PMC11025755 DOI: 10.1371/journal.pone.0301239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 03/12/2024] [Indexed: 04/20/2024] Open
Abstract
The retinal pigment epithelium (RPE) is essential to maintain retinal function, and RPE cell death represents a key pathogenic stage in the progression of several blinding ocular diseases, including age-related macular degeneration (AMD). To identify pathways and compounds able to prevent RPE cell death, we developed a phenotypic screening pipeline utilizing a compound library and high-throughput screening compatible assays on the human RPE cell line, ARPE-19, in response to different disease relevant cytotoxic stimuli. We show that the metabolic by-product of the visual cycle all-trans-retinal (atRAL) induces RPE apoptosis, while the lipid peroxidation by-product 4-hydroxynonenal (4-HNE) promotes necrotic cell death. Using these distinct stimuli for screening, we identified agonists of the aryl hydrocarbon receptor (AhR) as a consensus target able to prevent both atRAL mediated apoptosis and 4-HNE-induced necrotic cell death. This works serves as a framework for future studies dedicated to screening for inhibitors of cell death, as well as support for the discussion of AhR agonism in RPE pathology.
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Affiliation(s)
- Joshua Schustak
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
| | - Hongwei Han
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
| | - Kyle Bond
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
| | - Qian Huang
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
| | - Magali Saint-Geniez
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
| | - Yi Bao
- Department of Ophthalmology, BioMedical Research, Novartis, Cambridge, Massachusetts, United States of America
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22
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Xu L, Lin L, Xie N, Chen W, Nong W, Li R. Role of aryl hydrocarbon receptors in infection and inflammation. Front Immunol 2024; 15:1367734. [PMID: 38680494 PMCID: PMC11045974 DOI: 10.3389/fimmu.2024.1367734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/02/2024] [Indexed: 05/01/2024] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a transcription factor that is activated by various ligands, including pollutants, microorganisms, and metabolic substances. It is expressed extensively in pulmonary and intestinal epithelial cells, where it contributes to barrier defense. The expression of AhR is pivotal in regulating the inflammatory response to microorganisms. However, dysregulated AhR expression can result in endocrine disorders, leading to immunotoxicity and potentially promoting the development of carcinoma. This review focuses on the crucial role of the AhR in facilitating and limiting the proliferation of pathogens, specifically in relation to the host cell type and the species of etiological agents involved in microbial pathogen infections. The activation of AhR is enhanced through the IDO1-AhR-IDO1 positive feedback loop, which is manipulated by viruses. AhR primarily promotes the infection of SARS-CoV-2 by inducing the expression of angiotensin-converting enzyme 2 (ACE2) and the secretion of pro-inflammatory cytokines. AhR also plays a significant role in regulating various types of T-cells, including CD4+ T cells and CD8+ T cells, in the context of pulmonary infections. The AhR pathway plays a crucial role in regulating immune responses within the respiratory and intestinal barriers when they are invaded by viruses, bacteria, parasites, and fungi. Additionally, we propose that targeting the agonist and antagonist of AhR signaling pathways could serve as a promising therapeutic approach for combating pathogen infections, especially in light of the growing prevalence of drug resistance to multiple antibiotics.
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Affiliation(s)
- Linglan Xu
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Department of Obstetrics and Gynecology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, China
| | - Luping Lin
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Department of Obstetrics and Gynecology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Nan Xie
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, China
| | - Weiwei Chen
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, China
| | - Weihua Nong
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Department of Obstetrics and Gynecology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Ranhui Li
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Prevention and Treatment Institute for Occupational Diseases and Affiliated Prevention and Treatment Institute for Occupational Diseases, University of South China, Changsha, China
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23
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Wang A, Guan C, Wang T, Mu G, Tuo Y. Lactiplantibacillus plantarum-Derived Indole-3-lactic Acid Ameliorates Intestinal Barrier Integrity through the AhR/Nrf2/NF-κB Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38597152 DOI: 10.1021/acs.jafc.4c01622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Our previous studies have shown that Lactiplantibacillus plantarum DPUL-S164-derived indole-3-lactic acid (ILA) ameliorates intestinal epithelial cell barrier injury by activating aryl hydrocarbon receptor (AhR) and nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathways and promoting tight junction protein expression. This study further explored the crucial substances of L. plantarum DPUL-S164 in alleviating intestinal barrier damage in mice through a dextran sodium sulfate-induced ulcerative colitis mouse model. Compared to dead L. plantarum DPUL-S164 (D-S164), live L. plantarum DPUL-S164 (S164) and its tryptophan metabolite, ILA, showed an effective ameliorating effect on the intestinal barrier injury of mice treated by antibiotic cocktail and sodium dextran sulfate, suggesting that the crucial substances of L. plantarum DPUL-S164 ameliorating intestinal barrier injury are its extracellular metabolites. Furthermore, S164 and its tryptophan metabolite, ILA, ameliorate intestinal barrier injury and suppress intestinal inflammation by activating the AhR-Nrf2 pathway and inhibiting the nuclear factor kappa-B (NF-κB) pathway. These results suggest that L. plantarum DPUL-S164 ameliorates intestinal epithelial barrier damage in mice, primarily by producing ILA as a ligand to activate the AhR pathway.
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Affiliation(s)
- Arong Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Cheng Guan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Tieqi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
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24
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Zhang K, Mishra A, Jagannath C. New insight into arginine and tryptophan metabolism in macrophage activation during tuberculosis. Front Immunol 2024; 15:1363938. [PMID: 38605962 PMCID: PMC11008464 DOI: 10.3389/fimmu.2024.1363938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 03/11/2024] [Indexed: 04/13/2024] Open
Abstract
Arginine and tryptophan are pivotal in orchestrating cytokine-driven macrophage polarization and immune activation. Specifically, interferon-gamma (IFN-γ) stimulates inducible nitric oxide synthase (iNOS) expression), leading to the conversion of arginine into citrulline and nitric oxide (NO), while Interleukin-4 (IL4) promotes arginase activation, shifting arginine metabolism toward ornithine. Concomitantly, IFN-γ triggers indoleamine 2,3-dioxygenase 1 (IDO1) and Interleukin-4 induced 1 (IL4i1), resulting in the conversion of tryptophan into kynurenine and indole-3-pyruvic acid. These metabolic pathways are tightly regulated by NAD+-dependent sirtuin proteins, with Sirt2 and Sirt5 playing integral roles. In this review, we present novel insights that augment our understanding of the metabolic pathways of arginine and tryptophan following Mycobacterium tuberculosis infection, particularly their relevance in macrophage responses. Additionally, we discuss arginine methylation and demethylation and the role of Sirt2 and Sirt5 in regulating tryptophan metabolism and arginine metabolism, potentially driving macrophage polarization.
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Affiliation(s)
- Kangling Zhang
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States
| | - Abhishek Mishra
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Weill-Cornell Medicine, Houston, TX, United States
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Weill-Cornell Medicine, Houston, TX, United States
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25
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Bu Y, Yang S, Wang D, Hu S, Zhang Q, Wu Z, Yang C. Role of soluble epoxide hydrolase in pain and depression comorbidity. Neurobiol Dis 2024; 193:106443. [PMID: 38395315 DOI: 10.1016/j.nbd.2024.106443] [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: 09/18/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024] Open
Abstract
The coexistence of chronic pain and depression in clinical practice places a substantial social burden and profoundly impacts in patients. Although a clear correlation exists, the underlying mechanism of comorbidity between chronic pain and depression remains elusive. Research conducted in recent decades has uncovered that soluble epoxide hydrolase, a pivotal enzyme in the metabolism of polyunsaturated fatty acids, plays a crucial role in inflammation. Interestingly, this enzyme is intricately linked to the development of both pain and depression. With this understanding, this review aims to summarize the roles of soluble epoxide hydrolase in pain, depression, and their comorbidity. Simultaneously, we will also explore the underlying mechanisms, providing guidance for future research and drug development.
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Affiliation(s)
- Yuchen Bu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Siqi Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Di Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Suwan Hu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Qi Zhang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zifeng Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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26
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Raij T, Raij K. Association between fatigue, peripheral serotonin, and L-carnitine in hypothyroidism and in chronic fatigue syndrome. Front Endocrinol (Lausanne) 2024; 15:1358404. [PMID: 38505756 PMCID: PMC10948554 DOI: 10.3389/fendo.2024.1358404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/15/2024] [Indexed: 03/21/2024] Open
Abstract
Background Fatigue of unknown origin is a hallmark symptom in chronic fatigue syndrome (CFS) and is also found in 20% of hypothyroidism patients despite appropriate levothyroxine treatment. Here, we suggest that in these disorders, peripheral serotonin levels are low, and elevating them to normal range with L-carnitine is accompanied with reduced fatigue. Methods We conducted a retrospective analysis of follow-up clinical data (CFS N=12; hypothyroidism with fatigue N=40) where serum serotonin and fatigue levels were compared before vs. after 7 weeks of oral L-carnitine supplementation. Results After L-carnitine, serotonin increased (8-fold in CFS, Sig. = 0.002, 6-fold in hypothyroidism, Sig. < 0.001) whereas fatigue decreased (2-fold in both CFS and hypothyroidism, Sig. = 0.002 for CFS, Sig. < 0.001 for hypothyroidism). There was a negative correlation between serotonin level and fatigue (for CFS, rho = -0.49 before and -0.67 after L-carnitine; for hypothyroidism, rho = -0.24 before and -0.83 after L-carnitine). Conclusions These findings suggest a new link between low peripheral serotonin, L-carnitine, and fatigue.
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Affiliation(s)
- Tommi Raij
- Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- Department Of Neurobiology, Weinberg College of Arts and Sciences, Northwestern University, Chicago, IL, United States
- MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, MGH Department of Radiology, Boston, MA, United States
| | - Kari Raij
- Kruunuhaka Medical Center, Helsinki, Finland
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27
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García-Arévalo F, Leija-Montoya AG, González-Ramírez J, Isiordia-Espinoza M, Serafín-Higuera I, Fuchen-Ramos DM, Vazquez-Jimenez JG, Serafín-Higuera N. Modulation of myeloid-derived suppressor cell functions by oral inflammatory diseases and important oral pathogens. Front Immunol 2024; 15:1349067. [PMID: 38495880 PMCID: PMC10940359 DOI: 10.3389/fimmu.2024.1349067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/21/2024] [Indexed: 03/19/2024] Open
Abstract
The oral cavity presents a diverse microbiota in a dynamic balance with the host. Disruption of the microbial community can promote dysregulation of local immune response which could generate oral diseases. Additionally, alterations in host immune system can result in inflammatory disorders. Different microorganisms have been associated with establishment and progression of the oral diseases. Oral cavity pathogens/diseases can modulate components of the inflammatory response. Myeloid-derived suppressor cells (MDSCs) own immunoregulatory functions and have been involved in different inflammatory conditions such as infectious processes, autoimmune diseases, and cancer. The aim of this review is to provide a comprehensive overview of generation, phenotypes, and biological functions of the MDSCs in oral inflammatory diseases. Also, it is addressed the biological aspects of MDSCs in presence of major oral pathogens. MDSCs have been mainly analyzed in periodontal disease and Sjögren's syndrome and could be involved in the outcome of these diseases. Studies including the participation of MDSCs in other important oral diseases are very scarce. Major oral bacterial and fungal pathogens can modulate expansion, subpopulations, recruitment, metabolism, immunosuppressive activity and osteoclastogenic potential of MDSCs. Moreover, MDSC plasticity is exhibited in presence of oral inflammatory diseases/oral pathogens and appears to be relevant in the disease progression and potentially useful in the searching of possible treatments. Further analyses of MDSCs in oral cavity context could allow to understand the contribution of these cells in the fine-tuned balance between host immune system and microorganism of the oral biofilm, as well as their involvement in the development of oral diseases when this balance is altered.
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Affiliation(s)
- Fernando García-Arévalo
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | | | - Javier González-Ramírez
- Laboratorio de Biología Molecular, Centro de Ciencias de la Salud Mexicali, Facultad de Enfermería Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | - Mario Isiordia-Espinoza
- Instituto de Investigación en Ciencias Médicas, Departamento de Clínicas, División de Ciencias Biomédicas, Centro Universitario de los Altos, Universidad de Guadalajara, Tepatitlán de Morelos, Jal, Mexico
| | - Idanya Serafín-Higuera
- Laboratorio de Microbiología, Facultad de Medicina, Universidad Autónoma de Baja California, Tijuana, BC, Mexico
| | - Dulce Martha Fuchen-Ramos
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | | | - Nicolas Serafín-Higuera
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
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28
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Ahmadi M, Soleimanifar N, Rostamian A, Sadr M, Mojtahedi H, Mazari A, Hossein Nicknam M, Assadiasl S. Aryl hydrocarbon receptor gene expression in ankylosing spondylitis and its correlation with interleukin-17, RAR-related orphan receptor gamma t expression, and disease activity indices. Arch Rheumatol 2024; 39:123-132. [PMID: 38774696 PMCID: PMC11104753 DOI: 10.46497/archrheumatol.2023.10203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/01/2023] [Indexed: 05/24/2024] Open
Abstract
Objectives Considering the role of T helper (Th)17 cells in the pathogenesis of ankylosing spondylitis (AS), the aim of this study was to determine the correlation between aryl hydrocarbon receptor (AHR) gene expression and the expression of Th17-related genes including interleukin (IL)-17 and RAR-related orphan receptor gamma t (RORγt) transcription factor. Patients and methods Thirty patients with AS (26 males, 4 females; mean age: 36.1±8.1 years) and 30 age- and sex-matched healthy individuals (26 males, 4 females; mean age: 36.2±14.6 years) were recruited for the case-control study between June 2021 and January 2022. Ribonucleic acid (RNA) was extracted from peripheral blood cells and expression levels of AHR, IL-17, RORγt, and AHR repressor (AHRR) genes were evaluated using real-time polymerase chain reaction technique. The serum level of IL-17 was evaluated with enzyme-linked immunosorbent assay. Results The results showed a nonsignificant elevation of AHR, IL-17, and RORγt gene expression in the patient group compared to the control. There was a direct correlation between AHR gene expression and IL-17 and RORγt genes and a negative correlation between AHR and AHRR expression. Moreover, AHR gene expression showed a weak correlation with disease activity indices, including Bath Ankylosing Spondylitis Disease Activity Index, Bath Ankylosing Spondylitis Functional Index, Bath Ankylosing Spondylitis Metrology Index, Bath Ankylosing Spondylitis Global Score, and Ankylosing Spondylitis Quality of Life. Moreover, the serum level of IL-17 was higher in AS patients compared to the healthy group (p=0.02). Conclusion Upregulated expression of the AHR gene in ankylosing spondylitis and its correlation with IL-17 and ROR-γ t gene expression suggests that it could be a potential diagnostic and therapeutic target for AS.
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Affiliation(s)
- Maryam Ahmadi
- Department of Immunology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Narjes Soleimanifar
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolrahman Rostamian
- Department of Rheumatology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Sadr
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hanieh Mojtahedi
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Abeda Mazari
- Department of Immunology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Hossein Nicknam
- Department of Immunology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Assadiasl
- Molecular Immunology Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Healey AM, Fenner KN, O'Dell CT, Lawrence BP. Aryl hydrocarbon receptor activation alters immune cell populations in the lung and bone marrow during coronavirus infection. Am J Physiol Lung Cell Mol Physiol 2024; 326:L313-L329. [PMID: 38290163 PMCID: PMC11281796 DOI: 10.1152/ajplung.00236.2023] [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: 07/26/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
Respiratory viral infections are one of the major causes of illness and death worldwide. Symptoms associated with respiratory infections can range from mild to severe, and there is limited understanding of why there is large variation in severity. Environmental exposures are a potential causative factor. The aryl hydrocarbon receptor (AHR) is an environment-sensing molecule expressed in all immune cells. Although there is considerable evidence that AHR signaling influences immune responses to other immune challenges, including respiratory pathogens, less is known about the impact of AHR signaling on immune responses during coronavirus (CoV) infection. In this study, we report that AHR activation significantly altered immune cells in the lungs and bone marrow of mice infected with a mouse CoV. AHR activation transiently reduced the frequency of multiple cells in the mononuclear phagocyte system, including monocytes, interstitial macrophages, and dendritic cells in the lung. In the bone marrow, AHR activation altered myelopoiesis, as evidenced by a reduction in granulocyte-monocyte progenitor cells and an increased frequency of myeloid-biased progenitor cells. Moreover, AHR activation significantly affected multiple stages of the megakaryocyte lineage. Overall, these findings indicate that AHR activation modulates multiple aspects of the immune response to a CoV infection. Given the significant burden of respiratory viruses on human health, understanding how environmental exposures shape immune responses to infection advances our knowledge of factors that contribute to variability in disease severity and provides insight into novel approaches to prevent or treat disease.NEW & NOTEWORTHY Our study reveals a multifaceted role for aryl hydrocarbon receptor (AHR) signaling in the immune response to coronavirus (CoV) infection. Sustained AHR activation during in vivo mouse CoV infection altered the frequency of mature immune cells in the lung and modulated emergency hematopoiesis, specifically myelopoiesis and megakaryopoiesis, in bone marrow. This provides new insight into immunoregulation by the AHR and extends our understanding of how environmental exposures can impact host responses to respiratory viral infections.
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Affiliation(s)
- Alicia M Healey
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York, United States
| | - Kristina N Fenner
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, United States
| | - Colleen T O'Dell
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, United States
| | - B Paige Lawrence
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, United States
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York, United States
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30
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Ying Y, Song LY, Pang WL, Zhang SQ, Yu JZ, Liang PT, Li TG, Sun Y, Wang YY, Yan JY, Yang ZS. Astragalus polysaccharide protects experimental colitis through an aryl hydrocarbon receptor-dependent autophagy mechanism. Br J Pharmacol 2024; 181:681-697. [PMID: 37653584 DOI: 10.1111/bph.16229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND AND PURPOSE Disruption of intestinal barriers plays a vital role in the pathogenesis of colitis. The aryl hydrocarbon receptor (AhR) is a recognition sensor that mediates intestinal immune homeostasis and minimizes intestinal inflammation. Astragalus polysaccharide (APS) exerts pharmacological actions in colitis; however, the mechanism has not been elucidated. We investigated whether APS protects through AhR-dependent autophagy. EXPERIMENTAL APPROACH The symptoms of dextran sulfate sodium (DSS)-induced colitis in mice involving intestinal barrier function and inflammatory injury were evaluated after APS administration. Intestinal-specific Becn1 conditional knockout (Becn1 cKO) mice were constructed and compared with wild-type mice. Autophagy and the effects of APS were investigated after the deactivation of AhRs. The relationship between APS-induced AhRs and autophagic Becn1 was investigated using a dual-luciferase reporter system and chromatin immunoprecipitation (ChIP)-quantitative polymerase chain reaction assay. Caco-2 cells were used to investigate inflammatory responses and AhR-dependent autophagy. KEY RESULTS APS improved intestinal barrier function in inflammatory injury in colitis mice. APS triggered autophagic flow; however, knockout of Becn1 in the gut increased susceptibility to colitis, leading to diminished epithelial barrier function and severe intestinal inflammation, impairing the protective effects of APS. Mechanistically, APS-triggered autophagy depends on AhR expression. Activated AhR binds to the promoter Becn1 to operate transcription of genes involved in anti-inflammation and intestinal barrier repair, while deactivation of AhR correlated with intestinal inflammation and the therapeutic function of APS. CONCLUSIONS AND IMPLICATIONS APS protects colitis mice by targeting autophagy, especially as the AhR stimulates the repair of damaged intestinal barrier functions.
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Affiliation(s)
- Yi Ying
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Li-Yun Song
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Wen-Lin Pang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Si-Qi Zhang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Jing-Ze Yu
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun, Jilin, China
| | - Peng-Tao Liang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Tian-Gang Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yi Sun
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yin-Ying Wang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Jin-Yuan Yan
- Central Laboratory, Kunming Medical University Second Hospital, Kunming, Yunnan, China
| | - Zhong-Shan Yang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
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Chen H, King FJ, Zhou B, Wang Y, Canedy CJ, Hayashi J, Zhong Y, Chang MW, Pache L, Wong JL, Jia Y, Joslin J, Jiang T, Benner C, Chanda SK, Zhou Y. Drug target prediction through deep learning functional representation of gene signatures. Nat Commun 2024; 15:1853. [PMID: 38424040 PMCID: PMC10904399 DOI: 10.1038/s41467-024-46089-y] [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: 09/20/2023] [Accepted: 02/14/2024] [Indexed: 03/02/2024] Open
Abstract
Many machine learning applications in bioinformatics currently rely on matching gene identities when analyzing input gene signatures and fail to take advantage of preexisting knowledge about gene functions. To further enable comparative analysis of OMICS datasets, including target deconvolution and mechanism of action studies, we develop an approach that represents gene signatures projected onto their biological functions, instead of their identities, similar to how the word2vec technique works in natural language processing. We develop the Functional Representation of Gene Signatures (FRoGS) approach by training a deep learning model and demonstrate that its application to the Broad Institute's L1000 datasets results in more effective compound-target predictions than models based on gene identities alone. By integrating additional pharmacological activity data sources, FRoGS significantly increases the number of high-quality compound-target predictions relative to existing approaches, many of which are supported by in silico and/or experimental evidence. These results underscore the general utility of FRoGS in machine learning-based bioinformatics applications. Prediction networks pre-equipped with the knowledge of gene functions may help uncover new relationships among gene signatures acquired by large-scale OMICs studies on compounds, cell types, disease models, and patient cohorts.
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Affiliation(s)
- Hao Chen
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA.
- Department of Computer Science and Engineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA.
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
| | - Frederick J King
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Bin Zhou
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Yu Wang
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Carter J Canedy
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Joel Hayashi
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Yang Zhong
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Max W Chang
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Lars Pache
- NCI Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Julian L Wong
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Yong Jia
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - John Joslin
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA
| | - Tao Jiang
- Department of Computer Science and Engineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA
| | - Christopher Benner
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Sumit K Chanda
- Department of Immunology and Microbiology, Scripps Research, La Jolla, CA, 92037, USA
| | - Yingyao Zhou
- Novartis Biomedical Research, 10675 John Jay Hopkins Drive, San Diego, CA, 92121, USA.
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Bai Y, Qiao Y, Li M, Yang W, Chen H, Wu Y, Zhang H. RIPK1 inhibitors: A key to unlocking the potential of necroptosis in drug development. Eur J Med Chem 2024; 265:116123. [PMID: 38199165 DOI: 10.1016/j.ejmech.2024.116123] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/02/2024] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
Within the field of medical science, there is a great deal of interest in investigating cell death pathways in the hopes of discovering new drugs. Over the past two decades, pharmacological research has focused on necroptosis, a cell death process that has just been discovered. Receptor-interacting protein kinase 1 (RIPK1), an essential regulator in the cell death receptor signalling pathway, has been shown to be involved in the regulation of important events, including necrosis, inflammation, and apoptosis. Therefore, researching necroptosis inhibitors offers novel ways to treat a variety of disorders that are not well-treated by the therapeutic medications now on the market. The research and medicinal potential of RIPK1 inhibitors, a promising class of drugs, are thoroughly examined in this study. The journey from the discovery of Necrostatin-1 (Nec-1) to the recent advancements in RIPK1 inhibitors is marked by significant progress, highlighting the integration of traditional medicinal chemistry approaches with modern technologies like high-throughput screening and DNA-encoded library technology. This review presents a thorough exploration of the development and therapeutic potential of RIPK1 inhibitors, a promising class of compounds. Simultaneously, this review highlights the complex roles of RIPK1 in various pathological conditions and discusses potential inhibitors discovered through diverse pathways, emphasizing their efficacy against multiple disease models, providing significant guidance for the expansion of knowledge about RIPK1 and its inhibitors to develop more selective, potent, and safe therapeutic agents.
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Affiliation(s)
- Yinliang Bai
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, 730030, China; School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yujun Qiao
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Mingming Li
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Wenzhen Yang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Haile Chen
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Yanqing Wu
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Honghua Zhang
- Department of Pharmacy, National University of Singapore, Singapore, 117544, Singapore.
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Hu J, Dai J, Sheng N. Kynurenic Acid Plays a Protective Role in Hepatotoxicity Induced by HFPO-DA in Male Mice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1842-1853. [PMID: 38228288 DOI: 10.1021/acs.est.3c08033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Following its introduction as an alternative to perfluorooctanoic acid, hexafluoropropylene oxide dimer acid (HFPO-DA) has been extensively detected in various environmental matrices. Despite this prevalence, limited information is available regarding its hepatotoxicity biomarkers. In this study, toxicokinetic simulations indicated that under repeated treatment, HFPO-DA in mice serum reached a steady state by the 4th day. To assess its subacute hepatic effects and identify potential biomarkers, mice were administered HFPO-DA orally at doses of 0, 0.1, 0.5, 2.5, 12.5, or 62.5 mg/kg/d for 7 d. Results revealed that the lowest observed adverse effect levels were 0.5 mg/kg/d for hepatomegaly and 2.5 mg/kg/d for hepatic injury. Serum metabolomics analysis identified 34, 58, and 118 differential metabolites in the 0.1, 0.5, and 2.5 mg/kg/d groups, respectively, compared to the control group. Based on weighted gene coexpression network analysis, eight potential hepatotoxicity-related metabolites were identified; among them, kynurenic acid (KA) in mouse serum exhibited the highest correlation with liver injury. Furthermore, liver-targeted metabolomics analysis demonstrated that HFPO-DA exposure induced metabolic migration of the kynurenine pathway from KA to nicotinamide adenine dinucleotide, resulting in the activation of endoplasmic reticulum stress and the nuclear factor kappa-B signaling pathway. Notably, pretreatment with KA significantly attenuated liver injury induced by HFPO-DA exposure in mice, highlighting the pivotal roles of KA in the hepatotoxicity of HFPO-DA.
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Affiliation(s)
- Jianglin Hu
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
| | - Jiayin Dai
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Nan Sheng
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China
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Huang Y, Chen L, Liu F, Xiong X, Ouyang Y, Deng Y. Tryptophan, an important link in regulating the complex network of skin immunology response in atopic dermatitis. Front Immunol 2024; 14:1300378. [PMID: 38318507 PMCID: PMC10839033 DOI: 10.3389/fimmu.2023.1300378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/31/2023] [Indexed: 02/07/2024] Open
Abstract
Atopic dermatitis (AD) is a common chronic relapsing inflammatory skin disease, of which the pathogenesis is a complex interplay between genetics and environment. Although the exact mechanisms of the disease pathogenesis remain unclear, the immune dysregulation primarily involving the Th2 inflammatory pathway and accompanied with an imbalance of multiple immune cells is considered as one of the critical etiologies of AD. Tryptophan metabolism has long been firmly established as a key regulator of immune cells and then affect the occurrence and development of many immune and inflammatory diseases. But the relationship between tryptophan metabolism and the pathogenesis of AD has not been profoundly discussed throughout the literatures. Therefore, this review is conducted to discuss the relationship between tryptophan metabolism and the complex network of skin inflammatory response in AD, which is important to elucidate its complex pathophysiological mechanisms, and then lead to the development of new therapeutic strategies and drugs for the treatment of this frequently relapsing disease.
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Affiliation(s)
- Yaxin Huang
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Lingna Chen
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Fuming Liu
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xia Xiong
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yongliang Ouyang
- Department of Dermatology & Sexually Transmitted Disease (STD), Chengdu First People’s Hospital, Chengdu, Sichuan, China
- Health Management Center, Luzhou People’s Hospital, Luzhou, China
| | - Yongqiong Deng
- Department of Dermatology & Sexually Transmitted Disease (STD), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Department of Dermatology & Sexually Transmitted Disease (STD), Chengdu First People’s Hospital, Chengdu, Sichuan, China
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Wang A, Guan C, Wang T, Mu G, Tuo Y. Indole-3-Lactic Acid, a Tryptophan Metabolite of Lactiplantibacillus plantarum DPUL-S164, Improved Intestinal Barrier Damage by Activating AhR and Nrf2 Signaling Pathways. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18792-18801. [PMID: 37996788 DOI: 10.1021/acs.jafc.3c06183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
A growing body of evidence suggests that microbial tryptophan metabolites play a crucial role in maintaining intestinal barrier stability and modulating host immunity. Our previous study showed that the Lactiplantibacillus plantarum (L. plantarum ) DPUL-S164 intervention in mice with a high tryptophan (Trp) diet promotes indole-3-lactic acid (ILA) production in the mice's intestinal tract and ameliorates dextran sodium sulfate(DSS)-induced intestinal barrier damage in mice. In this study, we used the HT-29 cell monolayer model to evaluate the effect of the L. plantarum DPUL-S164 Trp metabolites (DPUL-S164-TM) on the intestinal barrier. We found that L. plantarum DPUL-S164-TM alleviated lipopolysaccharide (LPS)-induced intestinal barrier damage and inflammation of the HT-29 cell monolayer by promoting the expression of tight junction proteins (ZO-1, occludin, claudin1), activating the AhR and Nrf2 signaling pathways, and inhibiting the NF-κB signaling pathway. We found that the promotion of tight junction protein expression and the activation of the Nrf2 signaling pathway by L. plantarum DPUL-S164-TM were dependent on the AhR expression of HT-29 cells. Additionally, L. plantarum DPUL-S164-TM showed a dramatic increase in the ILA content. Therefore, we inferred that ILA in L. plantarum DPUL-S164-TM plays a key role in improving the intestinal barrier function and alleviating inflammation.
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Affiliation(s)
- Arong Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Cheng Guan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Tieqi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China
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Wang M, Feng X, Zhao Y, Lan Y, Xu H. Indole-3-acetamide from gut microbiota activated hepatic AhR and mediated the remission effect of Lactiplantibacillus plantarum P101 on alcoholic liver injury in mice. Food Funct 2023; 14:10535-10548. [PMID: 37947440 DOI: 10.1039/d3fo03585a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Alcoholic liver disease is a prevalent condition resulting from excessive alcohol consumption, characterized by hepatic lipid accumulation and inflammation. This study delved into the protective effects and mechanisms of L. plantarum P101 on alcoholic liver injury in mice. As a result, L. plantarum P101 intervention reduced ALT and AST release, indicative of hepatocyte injury alleviation, while enhancing the activity of the antioxidant enzymes SOD and CAT. A reduction in pro-inflammatory cytokine TNF-α and an increase in anti-inflammatory cytokine IL-10 levels were observed in the L. plantarum P101-intervened mouse liver, signifying reduced inflammation within the mice. Furthermore, L. plantarum P101 intervention altered the gut microbial composition, primarily marked by an increase in Bacteroidota abundance, along with significant enrichment of beneficial bacteria, including Coprostanoligenes, Blautia and Lactiplantibacillus. Correlation analysis unveiled connections between serum tryptophan metabolites and the altered gut microbiota genera, suggesting that gut microbiota-driven effects may extend to extraintestinal organs through their metabolites. Intriguingly, serum indole-3-acetamide (IAM) was elevated by L. plantarum P101-regulated gut microbiota. Subsequently, the role of IAM in ameliorating alcoholic injury was explored using HepG2 cells, where it bolstered cell viability and attenuated EtOH-induced oxidative damage. Concomitantly, IAM activated the gene and protein expression of AhR in cells. Likewise, hepatic AhR expression in mice subjected to L. plantarum P101 significantly up-regulated, possibly instigated by gut microbiota-mediated IAM. Collectively, L. plantarum P101 orchestrates a modulation of gut microbiota and its metabolites, particularly IAM, to activate AhR, thereby alleviating alcoholic liver injury.
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Affiliation(s)
- Mengqi Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
| | - Xiaoyan Feng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
| | - Yu Zhao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
| | - Yuzhi Lan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
| | - Hengyi Xu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P.R. China.
- International Institute of Food Innovation, Nanchang University, Nanchang 330299, P.R. China
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Hui Y, Zhao J, Yu Z, Wang Y, Qin Y, Zhang Y, Xing Y, Han M, Wang A, Guo S, Yuan J, Zhao Y, Ning X, Sun S. The Role of Tryptophan Metabolism in the Occurrence and Progression of Acute and Chronic Kidney Diseases. Mol Nutr Food Res 2023; 67:e2300218. [PMID: 37691068 DOI: 10.1002/mnfr.202300218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/10/2023] [Indexed: 09/12/2023]
Abstract
Acute kidney injury (AKI) and chronic kidney disease (CKD) are common kidney diseases in clinics with high morbidity and mortality, but their pathogenesis is intricate. Tryptophan (Trp) is a fundamental amino acid for humans, and its metabolism produces various bioactive substances involved in the pathophysiology of AKI and CKD. Metabolomic studies manifest that Trp metabolites like kynurenine (KYN), 5-hydroxyindoleacetic acid (5-HIAA), and indoxyl sulfate (IS) increase in AKI or CKD and act as biomarkers that facilitate the early identification of diseases. Meanwhile, KYN and IS act as ligands to exacerbate kidney damage by activating aryl hydrocarbon receptor (AhR) signal transduction. The reduction of renal function can cause the accumulation of Trp metabolites which in turn accelerate the progression of AKI or CKD. Besides, gut dysbiosis induces the expansion of Enterobacteriaceae family to produce excessive IS, which cannot be excreted due to the deterioration of renal function. The application of Trp metabolism as a target in AKI and CKD will also be elaborated. Thus, this study aims to elucidate Trp metabolism in the development of AKI and CKD, and explores the relative treatment strategies by targeting Trp from the perspective of metabolomics to provide a reference for their diagnosis and prevention.
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Affiliation(s)
- Yueqing Hui
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jin Zhao
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zixian Yu
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yuwei Wang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Yunlong Qin
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Nephrology, 980th Hospital of PLA Joint Logistical Support Force (Bethune International Peace Hospital), Shijiazhuang, Hebei, 050082, China
| | - Yumeng Zhang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Yan Xing
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Mei Han
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Anjing Wang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Shuxian Guo
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jinguo Yuan
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yueru Zhao
- School of Clinical Medicine, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Xiaoxuan Ning
- Department of Geriatric, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
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Khil J, Kim S, Lee M, Gil H, Kang SS, Lee DH, Kwon Y, Keum N. AHR rs4410790 genotype and IgG levels: Effect modification by lifestyle factors. PLoS One 2023; 18:e0290700. [PMID: 37782632 PMCID: PMC10545101 DOI: 10.1371/journal.pone.0290700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 08/15/2023] [Indexed: 10/04/2023] Open
Abstract
Inflammation is a multifaceted marker resulting from complex interactions between genetic and lifestyle factors. Emerging evidence suggests Aryl hydrocarbon receptor (AHR) protein may be implicated in the regulation of immune system and inflammatory responses. To investigate whether rs4410790 genotype (TT, TC, CC) near AHR gene is related to serum IgG levels, a marker of chronic inflammation, and whether lifestyle factors modifies the relationship, we conducted a cross-sectional study by recruiting 168 Korean adults. Participants responded to a lifestyle questionnaire and provided oral epithelial cells and blood samples for biomarker assessment. Among these participants, C allele was the minor allele, with the minor allele frequency of 40%. The rs4410790 TT genotype was significantly associated with elevated IgG levels compared with TC/CC genotypes, after adjusting for potential confounders (p = 0.04). The relationship varied significantly by levels of alcohol consumption (P interaction = 0.046) and overweight/obese status (P interaction = 0.02), but not by smoking status (P interaction = 0.64) and coffee consumption (P interaction = 0.55). Specifically, higher IgG levels associated with the TT genotype were evident in frequent drinkers and individuals with BMI≥23kg/m2, but not in their counterparts. Thus, rs4410790 genotype may be associated with IgG levels and the genetic predisposition to higher IgG levels may be mitigated by healthy lifestyle factors like infrequent drinking and healthy weight.
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Affiliation(s)
- Jaewon Khil
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Korea
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Soyoun Kim
- Department of Biomedical Engineering, Dongguk University, Seoul, Korea
| | - Minhyeong Lee
- Department of Biomedical Engineering, Dongguk University, Seoul, Korea
| | - Hyeonmin Gil
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Korea
| | - Seok-Seong Kang
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Korea
| | - Dong Hoon Lee
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
- Department of Sport Industry Studies, Yonsei University, Seoul, Republic of Korea
| | - Youngeun Kwon
- Department of Biomedical Engineering, Dongguk University, Seoul, Korea
| | - NaNa Keum
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Korea
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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Xie S, Yang B, Li S, Ge L, Li M, Chen Q, Qing X, Zou J. Generation and application of a novel transgenic zebrafish line Tg(GAcyp1a:eGFP/Luc) as an in vivo assay to sensitive and specific monitoring of DLCs in the environment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115471. [PMID: 37729807 DOI: 10.1016/j.ecoenv.2023.115471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/06/2023] [Accepted: 09/10/2023] [Indexed: 09/22/2023]
Abstract
CYP1A is the most commonly used biomarker and transgenic fish which carrying a cyp1a promoter to drive a reporter gene can be used as reliable way to monitor dioxin/dioxin-like compounds (DLCs) in the environment. Here, we cloned the cyp1a promoter of Gambusia affinis and this promoter showed stronger transcriptional activity than that of zebrafish. Then, a Tg(GAcyp1a:eGFP/Luc) transgenic zebrafish line was first constructed with the G. affinis cyp1a promoter driving eGFP expression using meganuclease I-SceI mediated transgenesis technology. The Tg(GAcyp1a:eGFP/Luc) larvae at 72 h post-fertilization (hpf) were tested by exposing to TCDD for 72 h, and induced GFP was mainly expressed in the liver with low background. The Tg(GAcyp1a:eGFP/Luc) zebrafish showed high sensitivity (limit of detection of 0.322 ng/L TCDD and 0.7 TEQ-ng/L PCDD/Fs) and specificity (insensitive to responses to PAHs and PCBs). In addition, the transgenic line showed a low detection concentration of the DLCs contaminated environmental samples (as low as 1.8 TEQ-ng/L), and the eGFP fluorescence intensity and the chemical-TEQ values were closely correlated. In conclusion, a sensitively and specifically transgenic zebrafish line was established to convenient and effective to detect DLCs in the environment.
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Affiliation(s)
- Shaolin Xie
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Bing Yang
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Siying Li
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Liangjun Ge
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Min Li
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Qingshi Chen
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xian Qing
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510530, China.
| | - Jixing Zou
- College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou 510642, China.
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Alqahtani MA, El-Ghiaty MA, El-Mahrouk SR, El-Kadi AOS. Methylmercury (MeHg) transcriptionally regulates NAD(P)H:quinone oxidoreductase 1 (NQO1) in Hepa-1c1c7 cells. Curr Res Toxicol 2023; 5:100126. [PMID: 37808441 PMCID: PMC10556580 DOI: 10.1016/j.crtox.2023.100126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/10/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023] Open
Abstract
The detoxification of quinones through NAD(P)H:quinone oxidoreductase (NQO1) is a crucial mechanism to maintain cellular homeostasis. The exposure to heavy metals, specifically methylmercury (MeHg), induces several antioxidant enzymes, including NQO1. The nuclear factor erythroid 2-related factor-2 (NRF2) is known to regulate the expression of Nqo1 gene and also the aryl hydrocarbon receptor (AHR) is another Nqo1 gene regulator. This co-regulation prompted us to investigate which transcription factor (NRF2 or AHR) orchestrates the regulation of NQO1 expression upon MeHg exposure. Therefore, we investigated how MeHg can modulate the level of NQO1 expression by exposing Hepa-1c1c7 cells to several concentrations of MeHg with and without the addition of NQO1 inducers, DL-sulforaphane (SUL) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). We found that the mRNA expression of Nqo1 is up-regulated by MeHg in time- as well as dose-dependent fashions. Additionally, MeHg increased the NQO1 at all expression levels with and without the presence of its inducers, SUL or TCDD. Furthermore, the MeHg-mediated increase of NQO1 expression was in parallel with a concurrent increase in the nuclear localization of NRF2 protein, but not that of AHR. Mechanistically, the antioxidant response element-driven reporter gene activity was induced by 215% upon MeHg exposure. Also, transfecting Hepa-1c1c7 with Nrf2 siRNA reduced the MeHg-induced NQO1 protein expression by 60%. In conclusion, our findings provide evidence supporting the hypothesis that MeHg upregulates the Nqo1 gene through a transcriptional mechanism at least in part via a NRF2-dependent mechanism.
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Affiliation(s)
- Mohammed A Alqahtani
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Mahmoud A El-Ghiaty
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Sara R El-Mahrouk
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Ayman O S El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
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Yang L, Zhou Y, Zhang L, Wang Y, Zhang Y, Xiao Z. Aryl hydrocarbon receptors improve migraine-like pain behaviors in rats through the regulation of regulatory T cell/T-helper 17 cell-related homeostasis. Headache 2023; 63:1045-1060. [PMID: 37539825 DOI: 10.1111/head.14599] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/30/2023] [Accepted: 05/26/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVE To investigate the effect of the aryl hydrocarbon receptor (AHR)/regulatory T cell (Treg)/T-helper 17 (Th17) cell pathway on the pathogenesis of migraine. BACKGROUND Migraine is a disabling neurovascular disease that imposes an enormous burden on both individuals and society. The pathophysiological mechanisms of migraine remain controversial. Recent studies have suggested that immune dysfunction may be involved in the pathogenesis of migraine. The AHR, a receptor expressed on most immune cells, has been implicated in the occurrence of many autoimmune diseases; however, whether it is involved in the pathogenesis of migraine is unclear. METHODS A chronic migraine rat model was established through repeated intraperitoneal injection of nitroglycerin (NTG). The mechanical and thermal pain thresholds were assessed using von Frey filaments and radiant heat. Next, the protein expression levels of AHR in the trigeminal nucleus caudalis (TNC) region of chronic migraine (CM)-like rats were quantified and the changes in Treg/Th17-related transcription factors and inflammatory factors in the TNC were explored. To determine the role of AHR in CM, we examined the effects of the AHR agonist 2-(1'-indole-3'-carbonyl)-thiazole-4-carboxylic acid methyl ester (ITE), and AHR antagonist CH-223191 on pain behavior, c-Fos, calcitonin gene-related peptide (CGRP), AHR, and Treg/Th17-related factor expression in CM-like rats. RESULTS Repeated administration of NTG significantly enhanced nociceptive hypersensitivity and increased expression of c-Fos and CGRP in rats, while AHR was significantly decreased in the TNC. In addition, the expression of the transcription factor forkhead box protein P3 and the signal transducer and activator of transcription 5 decreased significantly. In contrast, the expression of the transcription factor retinoic acid receptor-related orphan receptor γ t and signal transducer and activator of transcription 3 were significantly increased. Moreover, the mRNA level of transforming growth factor beta-1 was decreased, while that of interleukin (IL)-10 and IL-22 was increased in the TNC. The AHR agonist ITE alleviated migraine-like pain behaviors in rats, activated the AHR signaling pathway, and improved the imbalance of Treg/Th17-related transcription factors and inflammatory factors. Conversely, the AHR antagonist CH-223191 did not alleviate migraine-like pain behaviors in rats; and even exacerbated them. CONCLUSIONS The AHR participates in the development of CM by regulating Treg/Th17-related homeostasis. Therefore, treatments targeting the AHR/Treg/Th17 signaling pathway could be new effective interventions for CM treatment.
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Affiliation(s)
- Liu Yang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yanjie Zhou
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Lily Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yue Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yu Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Zheman Xiao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
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Mu J, Song J, Li R, Xue T, Wang D, Yu J. Isovitexin prevents DSS-induced colitis through inhibiting inflammation and preserving intestinal barrier integrity through activating AhR. Chem Biol Interact 2023; 382:110583. [PMID: 37263555 DOI: 10.1016/j.cbi.2023.110583] [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: 04/01/2023] [Revised: 05/17/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023]
Abstract
Isovitexin (ISO) is a glycosylated flavonoid obtained from Asian rice that has been reported to have anti-inflammatory effect. However, the effects of ISO on colitis have not been reported. In the present study, we aimed to explore the protective effects of isovitexin on colitis using the dextran sodium sulfate (DSS)-induced model. In vitro, the protective mechanism was investigated in TNF-α-stimulated IEC cells. Inflammatory cytokines were measured by ELISA. The signaling pathways were measured by Western blot analysis. ISO attenuated DSS-induced colitis through reducing body weight loss and colonic histological changes. Also, the levels of TNF-α and IL-1β induced by DSS were inhibited by ISO. The MPO activity induced by DSS was attenuated by ISO. In vitro, ISO inhibited IL-6 and IL-1β production in TNF-α-stimulated cells. ISO increased the expression of tight junction proteins ZO-1 and occludin. Also, ISO inhibited TNF-α-induced NF-κB activation. In addition, ISO was found to increase the expression of aryl hydrocarbon receptor (AhR). And inhibition of AhR by its antagonist CH223191 could reverse these effects of ISO. ISO inhibited DSS-induced colitis in mice through suppressing inflammation and preserving intestinal barrier integrity through activating AhR. ISO may be useful as a potential therapeutic agent for colitis.
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Affiliation(s)
- Jianfeng Mu
- Department of Gastric and Colorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Jiaxing Song
- Department of laboratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Rong Li
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Tianyi Xue
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Jinhai Yu
- Department of Gastric and Colorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin Province, China.
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Huang J, Wang YN, Zhou Y. Constitutive aryl hydrocarbon receptor facilitates the regenerative potential of mouse bone marrow mesenchymal stromal cells. World J Stem Cells 2023; 15:807-820. [PMID: 37700822 PMCID: PMC10494570 DOI: 10.4252/wjsc.v15.i8.807] [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: 03/28/2023] [Revised: 06/29/2023] [Accepted: 07/14/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Bone marrow mesenchymal stromal cells (BMSCs) are the commonly used seed cells in tissue engineering. Aryl hydrocarbon receptor (AhR) is a transcription factor involved in various cellular processes. However, the function of constitutive AhR in BMSCs remains unclear. AIM To investigate the role of AhR in the osteogenic and macrophage-modulating potential of mouse BMSCs (mBMSCs) and the underlying mechanism. METHODS Immunochemistry and immunofluorescent staining were used to observe the expression of AhR in mouse bone marrow tissue and mBMSCs. The overexpression or knockdown of AhR was achieved by lentivirus-mediated plasmid. The osteogenic potential was observed by alkaline phosphatase and alizarin red staining. The mRNA and protein levels of osteogenic markers were detected by quantitative polymerase chain reaction (qPCR) and western blot. After coculture with different mBMSCs, the cluster of differentiation (CD) 86 and CD206 expressions levels in RAW 264.7 cells were analyzed by flow cytometry. To explore the underlying molecular mechanism, the interaction of AhR with signal transducer and activator of transcription 3 (STAT3) was observed by co-immunoprecipitation and phosphorylation of STAT3 was detected by western blot. RESULTS AhR expressions in mouse bone marrow tissue and isolated mBMSCs were detected. AhR overexpression enhanced the osteogenic potential of mBMSCs while AhR knockdown suppressed it. The ratio of CD86+ RAW 264.7 cells cocultured with AhR-overexpressed mBMSCs was reduced and that of CD206+ cells was increased. AhR directly interacted with STAT3. AhR overexpression increased the phosphorylation of STAT3. After inhibition of STAT3 via stattic, the promotive effects of AhR overexpression on the osteogenic differentiation and macrophage-modulating were partially counteracted. CONCLUSION AhR plays a beneficial role in the regenerative potential of mBMSCs partially by increasing phosphorylation of STAT3.
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Affiliation(s)
- Jing Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei Province, China
| | - Yi-Ning Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei Province, China
| | - Yi Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei Province, China.
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Chen J, Zhong H, Huang Z, Chen X, You J, Zou T. A Critical Review of Kaempferol in Intestinal Health and Diseases. Antioxidants (Basel) 2023; 12:1642. [PMID: 37627637 PMCID: PMC10451660 DOI: 10.3390/antiox12081642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Kaempferol, a secondary metabolite found in plants, is a naturally occurring flavonoid displaying significant potential in various biological activities. The chemical structure of kaempferol is distinguished by the presence of phenyl rings and four hydroxyl substituents, which make it an exceptional radical scavenger. Most recently, an increasing number of studies have demonstrated the significance of kaempferol in the regulation of intestinal function and the mitigation of intestinal inflammation. The focus of the review will primarily be on its impact in terms of antioxidant properties, inflammation, maintenance of intestinal barrier function, and its potential in the treatment of colorectal cancer and obesity. Future research endeavors should additionally give priority to investigating the specific dosage and duration of kaempferol administration for different pathological conditions, while simultaneously conducting deeper investigations into the comprehensible mechanisms of action related to the regulation of aryl hydrocarbon receptor (AhR). This review intends to present novel evidence supporting the utilization of kaempferol in the regulation of gut health and the management of associated diseases.
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Affiliation(s)
| | | | | | | | | | - Tiande Zou
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China; (J.C.); (H.Z.); (Z.H.); (X.C.); (J.Y.)
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Oleforuh-Okoleh VU, Sikiru AB, Kakulu II, Fakae BB, Obianwuna UE, Shoyombo AJ, Adeolu AI, Ollor OA, Emeka OC. Improving hydrocarbon toxicity tolerance in poultry: role of genes and antioxidants. Front Genet 2023; 14:1060138. [PMID: 37388938 PMCID: PMC10302211 DOI: 10.3389/fgene.2023.1060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 05/23/2023] [Indexed: 07/01/2023] Open
Abstract
Sustenance of smallholder poultry production as an alternative source of food security and income is imperative in communities exposed to hydrocarbon pollution. Exposure to hydrocarbon pollutants causes disruption of homeostasis, thereby compromising the genetic potential of the birds. Oxidative stress-mediated dysfunction of the cellular membrane is a contributing factor in the mechanism of hydrocarbon toxicity. Epidemiological studies show that tolerance to hydrocarbon exposure may be caused by the activation of genes that control disease defense pathways like aryl hydrocarbon receptor (AhR) and nuclear factor erythroid 2p45-related factor 2 (Nrf2). Disparity in the mechanism and level of tolerance to hydrocarbon fragments among species may exist and may result in variations in gene expression within individuals of the same species upon exposure. Genomic variability is critical for adaptation and serves as a survival mechanism in response to environmental pollutants. Understanding the interplay of diverse genetic mechanisms in relation to environmental influences is important for exploiting the differences in various genetic variants. Protection against pollutant-induced physiological responses using dietary antioxidants can mitigate homeostasis disruptions. Such intervention may initiate epigenetic modulation relevant to gene expression of hydrocarbon tolerance, enhancing productivity, and possibly future development of hydrocarbon-tolerant breeds.
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Affiliation(s)
| | - Akeem B. Sikiru
- Department of Animal Science, Federal University of Agriculture, Zuru, Kebbi State, Nigeria
| | - Iyenemi I. Kakulu
- Department of Estate Management, Faculty of Environmental Sciences, Rivers State University, Port Harcourt, Nigeria
| | - Barineme B. Fakae
- Department of Animal and Environmental Biology, Rivers State University, Port Harcourt, Rivers State, Nigeria
| | | | - Ayoola J. Shoyombo
- Department of Animal Science, College of Agricultural Science, Landmark University, Omu-aran, Kwara State, Nigeria
| | - Adewale I. Adeolu
- Department of Agriculture, Animal Science Programme, Alex-Ekwueme Federal University, Ikwo, Ebonyi, Nigeria
| | - Ollor A. Ollor
- Department of Medical Laboratory Science, Faculty of Science, Rivers State University, Port Harcourt, Rivers State, Nigeria
| | - Onyinyechi C. Emeka
- Department of Animal Science, Rivers State University, Port Harcourt, Rivers State, Nigeria
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Fonseca TH, Von Rekowski CP, Araújo R, Oliveira MC, Justino G, Bento L, Calado CRC. The Impact of the Serum Extraction Protocol on Metabolomic Profiling Using UPLC-MS/MS and FTIR Spectroscopy. ACS OMEGA 2023; 8:20755-20766. [PMID: 37323376 PMCID: PMC10237515 DOI: 10.1021/acsomega.3c01370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/04/2023] [Indexed: 06/17/2023]
Abstract
Biofluid metabolomics is a very appealing tool to increase the knowledge associated with pathophysiological mechanisms leading to better and new therapies and biomarkers for disease diagnosis and prognosis. However, due to the complex process of metabolome analysis, including the metabolome isolation method and the platform used to analyze it, there are diverse factors that affect metabolomics output. In the present work, the impact of two protocols to extract the serum metabolome, one using methanol and another using a mixture of methanol, acetonitrile, and water, was evaluated. The metabolome was analyzed by ultraperformance liquid chromatography associated with tandem mass spectrometry (UPLC-MS/MS), based on reverse-phase and hydrophobic chromatographic separations, and Fourier transform infrared (FTIR) spectroscopy. The two extraction protocols of the metabolome were compared over the analytical platforms (UPLC-MS/MS and FTIR spectroscopy) concerning the number of features, the type of features, common features, and the reproducibility of extraction replicas and analytical replicas. The ability of the extraction protocols to predict the survivability of critically ill patients hospitalized at an intensive care unit was also evaluated. The FTIR spectroscopy platform was compared to the UPLC-MS/MS platform and, despite not identifying metabolites and consequently not contributing as much as UPLC-MS/MS in terms of information concerning metabolic information, it enabled the comparison of the two extraction protocols as well as the development of very good predictive models of patient's survivability, such as the UPLC-MS/MS platform. Furthermore, FTIR spectroscopy is based on much simpler procedures and is rapid, economic, and applicable in the high-throughput mode, i.e., enabling the simultaneous analysis of hundreds of samples in the microliter range in a couple of hours. Therefore, FTIR spectroscopy represents a very interesting complementary technique not only to optimize processes as the metabolome isolation but also for obtaining biomarkers such as those for disease prognosis.
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Affiliation(s)
- Tiago
A. H. Fonseca
- Instituto
Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
| | - Cristiana P. Von Rekowski
- Instituto
Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
| | - Rúben Araújo
- Instituto
Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
| | - M. Conceição Oliveira
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto
Superior Técnico, Universidade de
Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal
| | - Gonçalo
C. Justino
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto
Superior Técnico, Universidade de
Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal
| | - Luís Bento
- Intensive
Care Department, Centro Hospitalar Universitário
de Lisboa Central (CHULC), Rua José António Serrano, 1150-199 Lisboa, Portugal
- Integrated
Pathophysiological Mechanisms, CHRC, NOVA Medical School, Faculdade
de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Campo Mártires da Pátria, 130, 1169-056 Lisboa, Portugal
| | - Cecília R. C. Calado
- Instituto
Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
- Centro
de Investigação em Modelação e Optimização
de Sistemas Multifuncionais (CIMOSM), Instituto Superior de Engenharia
de Lisboa (ISEL), Instituto Politécnico
de Lisboa, Rua Conselheiro
Emídio Navarro 1, 1959-007 Lisboa, Portugal
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47
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Shi J, Du T, Wang J, Tang C, Lei M, Yu W, Yang Y, Ma Y, Huang P, Chen H, Wang X, Sun J, Wang H, Zhang Y, Luo F, Huang Q, Li B, Lu S, Hu Y, Peng X. Aryl hydrocarbon receptor is a proviral host factor and a candidate pan-SARS-CoV-2 therapeutic target. SCIENCE ADVANCES 2023; 9:eadf0211. [PMID: 37256962 PMCID: PMC10413656 DOI: 10.1126/sciadv.adf0211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023]
Abstract
The emergence of a series of SARS-CoV-2 variants has necessitated the search for broad-spectrum antiviral targets. The aryl hydrocarbon receptor (AhR) senses tryptophan metabolites and is an immune regulator. However, the role of AhR in SARS-CoV-2 infection and whether AhR can be used as the target of antiviral therapy against SARS-CoV-2 and its variants are yet unclear. Here, we show that infection with SARS-CoV-2 activates AhR signaling and facilitates viral replication by interfering with IFN-I-driven antiviral immunity and up-regulating ACE2 receptor expression. The pharmacological AhR blockade or AhR knockout reduces SARS-CoV-2 and its variants' replication in vitro. Drug targeting of AhR with AhR antagonists markedly reduced SARS-CoV-2 and its variants' replication in vivo and ameliorated lung inflammation caused by SARS-CoV-2 infection in hamsters. Overall, AhR was a SARS-CoV-2 proviral host factor and a candidate host-directed broad-spectrum target for antiviral therapy against SARS-CoV-2 and its variants, including Delta and Omicron, and potentially other variants in the future.
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Affiliation(s)
- Jiandong Shi
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tingfu Du
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junbin Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Cong Tang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mengyue Lei
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenhai Yu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yun Yang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Ma
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pu Huang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongli Chen
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Sun
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haixuan Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong Zhang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fangyu Luo
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Huang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bai Li
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuaiyao Lu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yunzhang Hu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaozhong Peng
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing China
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing China
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48
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Cheng J, Wang S, Lv SQ, Song Y, Guo NH. Resveratrol inhibits AhR/Notch axis and reverses Th17/Treg imbalance in purpura by activating Foxp3. Toxicol Res (Camb) 2023; 12:381-391. [PMID: 37397914 PMCID: PMC10311159 DOI: 10.1093/toxres/tfad021] [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: 07/25/2022] [Revised: 02/19/2023] [Accepted: 03/06/2023] [Indexed: 07/04/2023] Open
Abstract
Background Resveratrol has been reported to reverse the imbalance of T helper 17/regulatory T (Th17/Treg) by inhibiting the aryl hydrocarbon receptor pathway to treat immune thrombocytopenia. However, the regulation mechanism of the Notch signaling pathway by resveratrol has not been reported in purpura. This study is aimed to explore the mechanism of resveratrol ultrafine nanoemulsion (Res-mNE) in immune thrombocytopenia. Methods The immune thrombocytopenia mouse model was constructed to explore the effect of RES-mNE on immune thrombocytopenia. Cluster of differentiation 4 (CD4+) T cells were isolated and treated with different medications. CD4+ T cells were induced to differentiate into Th17 cells and Treg cells. Flow cytometry was used to detect the proportion of Th17 cells and Treg cells. The secretion was measured by the enzyme-linked immunosorbent assay (ELISA). Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and western blot were used to detect the mRNA and protein levels. Results Th17 cells, IL-17A and IL-22 increased in the immune thrombocytopenia mouse model, and the Treg cells and IL-10 decreased. Res-mNE promoted Treg cell differentiation and IL-10 secretion in CD4+ T cells while inhibiting Th17 cell differentiation and IL-17A and IL-22 levels. The AhR activator 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) reversed the effect of Res-mNE. Notch inhibitors reduced the ratio of Th17/Treg differentiation. Res-mNE activated the expression of Foxp3 by mediating AhR/Notch signaling to reverse the imbalance of Th17/Treg differentiation in immune thrombocytopenia. Conclusion Taken together, our findings demonstrated that RES-mNE inhibited the AhR/Notch axis and reversed Th17/Treg imbalance by activating Foxp3.
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Affiliation(s)
- Jing Cheng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1, Minde Road, Nanchang 330006, Jiangxi Province, P.R. China
| | - Sheng Wang
- Department of Psychiatry, Jiangxi Mental Hospital, Shangfang Road, Nanchang 330008, Jiangxi Province, P.R. China
| | - Shi-Qin Lv
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1, Minde Road, Nanchang 330006, Jiangxi Province, P.R. China
| | - Yuan Song
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1, Minde Road, Nanchang 330006, Jiangxi Province, P.R. China
| | - Ning-Hong Guo
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, No.1, Minde Road, Nanchang 330006, Jiangxi Province, P.R. China
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49
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Shan J, Ma XF, Wu MY, Lin YJ, Wang Y, Wang R, Li HM, Wu ZL, Xu HM. Preliminary study on the role of aryl hydrocarbon receptor in the neurotoxicity of three typical bisphenol compounds (BPA, BPS and TBBPA) at environmentally relevant concentrations to adult zebrafish ( Danio rerio). Heliyon 2023; 9:e16649. [PMID: 37292267 PMCID: PMC10245060 DOI: 10.1016/j.heliyon.2023.e16649] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023] Open
Abstract
Objective This study was aimed to explore the role of AhR in the neurotoxicity of adult zebrafish induced by three typical bisphenol compounds (BPA, BPS, TBBPA) at environmentally relevant doses. Methods The adult zebrafish were randomly divided into solvent control group (DMSO) and AhR inhibitor CH223191 (CH) group (0.05 μmol/L), bisphenol exposure groups (10, 100, 1000 nmol/L) and combined exposure groups (0.05 μmol/L CH and 1000 nmol/L bisphenol compounds). Each tank contained 8 fish (4 male and 4 female), and two parallel tanks were set synchronously. After 30 days of exposure, zebrafish were put on ice plate for anesthesia, weighed and measured for body length, and dissected for brain tissue. The gene expression was detected by RT-qPCR, and the activities of antioxidant enzymes were detected by commercial kits. SPSS 26.0 was used to analyze the data. Additionally, GO, KEGG and principal component analysis (PCA) were carried out. Results Compared with the solvent control group, there were no significant differences in body weight and length among the exposed groups. In general, exposure to bisphenol compounds could affect the expression of Ahr2 and AhR target genes (cyp1a1, cyp1a2, and cyp1c1), key genes of neural function (elavl3, gfap, mbp, syn2a, gap43, Zn5, shha, and ache), oxidative stress related genes (nrf2, gpx1a, gstp1/gstp1.2, gstp2/gstp1.1, sod1, sod2, and cat), and the activities of antioxidant enzymes (SOD, CAT and GSH-Px/GPX) in zebrafish brain tissue to some extent. Compared with the groups exposed to bisphenols alone, CH could antagonize the above interference effects caused by bisphenols to some extent. Therefore, the toxic effects of BPA, BPS and TBBPA might be produced through similar mechanisms. Conclusion Environmentally related doses of bisphenols (BPA, BPS, TBBPA) could disturb the expression of key molecules of oxidative stress and neural function through activating the AhR signaling pathway, and ultimately lead to neurotoxicity.
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Affiliation(s)
- Jing Shan
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Xiao-Fa Ma
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Meng-Yu Wu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Yu-Jia Lin
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Yi Wang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Rui Wang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
| | - Hong-Mei Li
- The Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- School of Basic Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Zhong-Lan Wu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- Ningxia Center for Disease Control and Prevention, Yinchuan, 750004, Ningxia, China
| | - Hai-Ming Xu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control of Ningxia, Yinchuan, 750004, Ningxia, China
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50
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Hunt A, Qian V, Olds H, Daveluy S. The Current Clinical Trial Landscape for Hidradenitis Suppurativa: A Narrative Review. Dermatol Ther (Heidelb) 2023:10.1007/s13555-023-00935-x. [PMID: 37261652 DOI: 10.1007/s13555-023-00935-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/04/2023] [Indexed: 06/02/2023] Open
Abstract
Hidradenitis suppurativa (HS) is a skin disease resulting from chronic, recurrent inflammation around hair follicles, characterized by proinflammatory cytokines such as IL-1, IL-17, IL-23, and TNF-α. While adalimumab, a TNF-α targeting human IgG monoclonal antibody, is the only approved treatment for HS, there are many other therapies being investigated now targeting other key players in inflammatory pathways such as the cytokines listed above, C5a in the complement pathway, and Janus kinase (JAK). This review discusses current clinical trials for biologics and small molecules, procedures, and wound dressings undergoing study in hidradenitis suppurativa.
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Affiliation(s)
- Amanda Hunt
- Western Michigan University Homer Stryker M.D. School of Medicine, 300 Portage Street, Kalamazoo, MI, 49007, USA.
| | - Victoria Qian
- Wayne State University School of Medicine, Detroit, MI, USA.
| | - Hailey Olds
- Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Steven Daveluy
- Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, USA
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