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Wen Y, Wang H, Tian D, Wang G. TH17 cell: a double-edged sword in the development of inflammatory bowel disease. Therap Adv Gastroenterol 2024; 17:17562848241230896. [PMID: 38390028 PMCID: PMC10883129 DOI: 10.1177/17562848241230896] [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: 09/16/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic nonspecific inflammatory disease of the gastrointestinal tract, and its pathogenesis has not been fully understood. Extensive dysregulation of the intestinal mucosal immune system is critical in the development and progression of IBD. T helper (Th) 17 cells have the characteristics of plasticity. They can transdifferentiate into subpopulations with different functions in response to different factors in the surrounding environment, thus taking on different roles in regulating the intestinal immune responses. In this review, we will focus on the plasticity of Th17 cells as well as the function of Th17 cells and their related cytokines in IBD. We will summarize their pathogenic and protective roles in IBD under different conditions, respectively, hoping to further deepen the understanding of the pathological mechanisms underlying IBD and provide insights for future treatment.
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Affiliation(s)
- Yue Wen
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Ge Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
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2
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Mohammad TAM, Hamad BK, Maroof AMA, Mahmud SO. STA-21 regulates Th-17/Treg balance and synovial fibroblasts functions in rheumatoid arthritis. Int J Rheum Dis 2024; 27:e15032. [PMID: 38287543 DOI: 10.1111/1756-185x.15032] [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: 03/04/2023] [Revised: 08/21/2023] [Accepted: 12/26/2023] [Indexed: 01/31/2024]
Abstract
JAK/STAT signaling pathway plays a significant role in cytokines and growth factors signaling involved in the pathogenesis of rheumatoid arthritis (RA). STAT3 is a major downstream signaling mediator of important pro-inflammatory cytokines involved in Th-17 cell differentiation playing a significant role in regulating Th-17/ Treg balance and the development of autoimmune diseases, especially RA. Studies also have reported the role of the STAT3 pathway in inflammatory and destructive functions of synovial fibroblasts (SFs) in RA. STA-21 is a small molecule inhibitor that can inhibit STAT3 activation impairing the expression of STAT3 target genes. In this study, we tested whether a STAT3 inhibitor, STA-21, can alter Th-17/Treg balance and SF functions in RA. Peripheral blood mononuclear cells (PBMC) and SFs were isolated from 34 RA patients undergoing orthopedic surgery and 15 healthy controls to investigate in vitro effects of STA-21. The main assays were MTT assay, PI staining, reverse transcription-PCR (RT-PCR), flow cytometric analysis, and ELISA. Results showed that STA-21 reduced the proportion of Th-17 cells and the expression of STAT3 target genes, RORγt, IL-21, and IL-23R involved in Th-17 cells differentiation while it conversely increased the proportion of Treg cells, which theoretically may result in suppression of inflammation. We found that STAT3 activation and its target gene expression increased in RA-SFs. In addition, results showed that STA-21 can reduce the expression of STAT3 target genes related to cell proliferation, apoptosis, and inflammation leading to a decrease in proliferation and conversely increase in apoptosis of RA-SFs. Overall, our findings provide evidence that STA-21 can reduce inflammatory immune processes conducted by T cells and RA-SFs in RA, suggesting that this compound is a suitable option for clinical studies in RA.
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Affiliation(s)
- Talar Ahmad Merza Mohammad
- Department of Clinical Pharmacy, College of Pharmacy, Hawler Medical University, Kurdistan Region-Erbil, Iraq
| | - Badraldin Kareem Hamad
- Department of pharmacology and toxicology, College of Pharmacy, Hawler Medical University, Kurdistan Region-Erbil, Iraq
| | | | - Shokhan Osman Mahmud
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region-Erbil, Iraq
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3
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Liu X, Wang X, Zhang P, Fang Y, Liu Y, Ding Y, Zhang W. Intestinal homeostasis in the gut-lung-kidney axis: a prospective therapeutic target in immune-related chronic kidney diseases. Front Immunol 2023; 14:1266792. [PMID: 38022571 PMCID: PMC10646503 DOI: 10.3389/fimmu.2023.1266792] [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: 07/25/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
In recent years, the role of intestinal homeostasis in health has received increasing interest, significantly improving our understanding of the complex pathophysiological interactions of the gut with other organs. Microbiota dysbiosis, impaired intestinal barrier, and aberrant intestinal immunity appear to contribute to the pathogenesis of immune-related chronic kidney diseases (CKD). Meanwhile, the relationship between the pathological changes in the respiratory tract (e.g., infection, fibrosis, granuloma) and immune-related CKD cannot be ignored. The present review aimed to elucidate the new underlying mechanism of immune-related CKD. The lungs may affect kidney function through intestinal mediation. Communication is believed to exist between the gut and lung microbiota across long physiological distances. Following the inhalation of various pathogenic factors (e.g., particulate matter 2.5 mum or less in diameter, pathogen) in the air through the mouth and nose, considering the anatomical connection between the nasopharynx and lungs, gut microbiome regulates oxidative stress and inflammatory states in the lungs and kidneys. Meanwhile, the intestine participates in the differentiation of T cells and promotes the migration of various immune cells to specific organs. This better explain the occurrence and progression of CKD caused by upper respiratory tract precursor infection and suggests the relationship between the lungs and kidney complications in some autoimmune diseases (e.g., anti-neutrophil cytoplasm antibodies -associated vasculitis, systemic lupus erythematosus). CKD can also affect the progression of lung diseases (e.g., acute respiratory distress syndrome and chronic obstructive pulmonary disease). We conclude that damage to the gut barrier appears to contribute to the development of immune-related CKD through gut-lung-kidney interplay, leading us to establish the gut-lung-kidney axis hypothesis. Further, we discuss possible therapeutic interventions and targets. For example, using prebiotics, probiotics, and laxatives (e.g., Rhubarb officinale) to regulate the gut ecology to alleviate oxidative stress, as well as improve the local immune system of the intestine and immune communication with the lungs and kidneys.
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Affiliation(s)
- Xinyin Liu
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
- Department of Traditional Chinese Medicine, Jiande First People’s Hospital, Jiande, Hangzhou, China
| | - Xiaoran Wang
- Department of Nephrology, The First People’s Hospital of Hangzhou Lin’an District, Hangzhou, China
| | - Peipei Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Yiwen Fang
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanyan Liu
- Department of Geriatric, Zhejiang Aged Care Hospital, Hangzhou, China
| | - Yueyue Ding
- Department of Geriatric, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Wen Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
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4
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Bhattacharya G, Sengupta S, Jha R, Shaw SK, Jogdand GM, Barik PK, Padhan P, Parida JR, Devadas S. IL-21/23 axis modulates inflammatory cytokines and RANKL expression in RA CD4 + T cells via p-Akt1 signaling. Front Immunol 2023; 14:1235514. [PMID: 37809066 PMCID: PMC10551441 DOI: 10.3389/fimmu.2023.1235514] [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: 06/06/2023] [Accepted: 09/04/2023] [Indexed: 10/10/2023] Open
Abstract
Introduction CD4+ T cells are critically involved in the pathogenesis of Rheumatoid Arthritis; an autoimmune disorder characterized by joint inflammation and bone degeneration. In this study, we focused on the critical role of cytokines, IL-21 and IL-23 in facilitating the aberrant status of RA Th17-like cells and report their significant contribution(s) in modulating the expression of inflammatory cytokines and RANKL. Methods Blood and synovial fluid collected from a total of 167 RA patients and 25 healthy volunteers were assessed for various inflammatory markers and RANKL expression in plasma and CD4+ T cells. Subsequent ex vivo studies examined the role of specific cytokines, IL-21 and IL-23 in mediating inflammation and RANKL upregulation by blocking their expression with neutralizing antibodies in RA CD4+ T cells and terminally differentiated human Th17 cells. Further, the role of p-Akt1 as a signalling target downstream of IL-21 and IL-23 was evinced with IL-21 and IL-23 inhibition and phospho Akt-1/2 kinase inhibitor. Results Our observations highlighted the augmented inflammatory cytokine levels in plasma and an aberrant CD4+ T cell phenotype expressing exaggerated inflammatory cytokines and membrane RANKL expression in RA as opposed to healthy controls. Neutralization of either IL-21 or IL-23 (p19 and p40) or both, resulted in downregulation of the cytokines, TNF-α, IFN-γ and IL-17 and RANKL expression in these cells, signifying the critical role of IL-21/23 axis in modulating inflammation and RANKL. Subsequent dissection of the signaling pathway found p-Akt1 as the key phosphoprotein downstream of both IL-21 and IL-23, capable of increasing inflammatory cytokines and RANKL production. Discussion Our findings unequivocally identify IL-21/23 axis in RA CD4+ T cells as a key regulator dictating two critical processes i.e. exaggerated inflammation and higher RANKL expression and provide critical targets in their downstream signalling for therapeutic approaches.
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Affiliation(s)
- Gargee Bhattacharya
- Institute of Life Sciences (ILS), Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology (RCB), Faridabad-Gurgaon, Haryana, India
| | - Soumya Sengupta
- Institute of Life Sciences (ILS), Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology (RCB), Faridabad-Gurgaon, Haryana, India
| | - Rohila Jha
- Institute of Life Sciences (ILS), Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology (RCB), Faridabad-Gurgaon, Haryana, India
| | - Shubham K. Shaw
- Institute of Life Sciences (ILS), Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology (RCB), Faridabad-Gurgaon, Haryana, India
| | | | | | - Prasanta Padhan
- Department of Clinical Immunology and Rheumatology, Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, India
| | - Jyoti R. Parida
- Odisha Arthritis & Rheumatology Centre (OARC), Bhubaneswar, Odisha, India
| | - Satish Devadas
- Institute of Life Sciences (ILS), Bhubaneswar, Odisha, India
- Regional Centre for Biotechnology (RCB), Faridabad-Gurgaon, Haryana, India
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5
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Kinsella RL, Kimmey JM, Smirnov A, Woodson R, Gaggioli MR, Chavez SM, Kreamalmeyer D, Stallings CL. Autophagy prevents early proinflammatory responses and neutrophil recruitment during Mycobacterium tuberculosis infection without affecting pathogen burden in macrophages. PLoS Biol 2023; 21:e3002159. [PMID: 37319285 DOI: 10.1371/journal.pbio.3002159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023] Open
Abstract
The immune response to Mycobacterium tuberculosis infection determines tuberculosis disease outcomes, yet we have an incomplete understanding of what immune factors contribute to a protective immune response. Neutrophilic inflammation has been associated with poor disease prognosis in humans and in animal models during M. tuberculosis infection and, therefore, must be tightly regulated. ATG5 is an essential autophagy protein that is required in innate immune cells to control neutrophil-dominated inflammation and promote survival during M. tuberculosis infection; however, the mechanistic basis for how ATG5 regulates neutrophil recruitment is unknown. To interrogate what innate immune cells require ATG5 to control neutrophil recruitment during M. tuberculosis infection, we used different mouse strains that conditionally delete Atg5 in specific cell types. We found that ATG5 is required in CD11c+ cells (lung macrophages and dendritic cells) to control the production of proinflammatory cytokines and chemokines during M. tuberculosis infection, which would otherwise promote neutrophil recruitment. This role for ATG5 is autophagy dependent, but independent of mitophagy, LC3-associated phagocytosis, and inflammasome activation, which are the most well-characterized ways that autophagy proteins regulate inflammation. In addition to the increased proinflammatory cytokine production from macrophages during M. tuberculosis infection, loss of ATG5 in innate immune cells also results in an early induction of TH17 responses. Despite prior published in vitro cell culture experiments supporting a role for autophagy in controlling M. tuberculosis replication in macrophages, the effects of autophagy on inflammatory responses occur without changes in M. tuberculosis burden in macrophages. These findings reveal new roles for autophagy proteins in lung resident macrophages and dendritic cells that are required to suppress inflammatory responses that are associated with poor control of M. tuberculosis infection.
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Affiliation(s)
- Rachel L Kinsella
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Jacqueline M Kimmey
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Asya Smirnov
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Reilly Woodson
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Margaret R Gaggioli
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Sthefany M Chavez
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Darren Kreamalmeyer
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Christina L Stallings
- Department of Molecular Microbiology, Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, Missouri, United States of America
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6
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Buzzelli AA, McWilliams IL, Shin B, Bryars MT, Harrington LE. Intrinsic STAT4 Expression Controls Effector CD4 T Cell Migration and Th17 Pathogenicity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1667-1676. [PMID: 37093664 PMCID: PMC11302403 DOI: 10.4049/jimmunol.2200606] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 03/30/2023] [Indexed: 04/25/2023]
Abstract
Effector CD4 T cells are central to the development of autoimmune chronic inflammatory diseases, yet factors that mediate pathogenicity remain ill-defined. Single-nucleotide polymorphisms in the human STAT4 locus are associated with susceptibility to multiple autoimmune disorders, and Stat4 is linked to the pathogenic Th17 gene signature; however, Th17 cells differentiate independently of STAT4. Hence the interplay between STAT4 and CD4 T cell function, especially Th17 cells, during autoimmune disease is unclear. In this article, we demonstrate that CD4 T cell-intrinsic STAT4 expression is essential for the induction of autoimmune CNS inflammation in mice, in part by regulating the migration of CD4 T cells to the inflamed CNS. Moreover, unbiased transcriptional profiling revealed that STAT4 controls the expression of >200 genes in Th17 cells and is important for the upregulation of genes associated with IL-23-stimulated, pathogenic Th17 cells. Importantly, we show that Th17 cells specifically require STAT4 to evoke autoimmune inflammation, highlighting, to our knowledge, a novel function for STAT4 in Th17 pathogenicity.
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Affiliation(s)
- Ashlyn A. Buzzelli
- * Departments of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham. Birmingham, AL 35294
| | - Ian L. McWilliams
- * Departments of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham. Birmingham, AL 35294
| | - Boyoung Shin
- * Departments of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham. Birmingham, AL 35294
| | - Morgan T. Bryars
- * Departments of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham. Birmingham, AL 35294
| | - Laurie E. Harrington
- * Departments of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham. Birmingham, AL 35294
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7
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Feng B, Pan B, Huang J, Du Y, Wang X, Wu J, Ma R, Shen B, Huang G, Feng J. PDE4D/cAMP/IL-23 axis determines the immunotherapy efficacy of lung adenocarcinoma via activating the IL-9 autocrine loop of cytotoxic T lymphocytes. Cancer Lett 2023; 565:216224. [PMID: 37196909 DOI: 10.1016/j.canlet.2023.216224] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023]
Abstract
Although immunotherapy has changed the prognosis of many advanced malignancies including lung adenocarcinoma (LUAD), many patients are insensitive to the drugs, with the mechanisms yet to be elucidated. Herein, we identified PDE4D as an immunotherapy efficacy-related gene through bioinformatics screening. By using a co-culture system of LUAD cells and tumor-cell-specific CD8+ T cells, a functional PDE4D/cAMP/IL-23 axis was further revealed in LUAD cells. Fluorescent multiplex immunohistochemistry analysis of patient-derived samples and the in vivo mouse LUAD xenograft tumors revealed not only the colocalization of IL-23 and CD8+ T cells but also the immune potentiating effect of IL-23 on cytotoxic T lymphocytes (CTLs) in LUAD tissues. Through transcriptome sequencing and functional validations, IL-23 was proven to up-regulate IL-9 expression in CTLs via activating the NF-κB signaling, leading to elevated productions of immune effector molecules and enhanced efficacy of antitumor immunotherapy. Interestingly, an autocrine loop of IL-9 was also uncovered during this process. In conclusion, PDE4D/cAMP/IL-23 axis determines the immunotherapy efficacy of human LUAD. This effect is mediated by the activation of an NF-κB-dependent IL-9 autocrine loop in CTLs.
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Affiliation(s)
- Bing Feng
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Banzhou Pan
- Department of Medical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Jiayuan Huang
- Department of Medical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Yuxin Du
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Xin Wang
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Jianzhong Wu
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Rong Ma
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China
| | - Bo Shen
- Department of Medical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China.
| | - Guichun Huang
- Department of Medical Oncology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210093, China.
| | - Jifeng Feng
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, China.
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8
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Shnayder NA, Ashkhotov AV, Trefilova VV, Nurgaliev ZA, Novitsky MA, Petrova MM, Narodova EA, Al-Zamil M, Chumakova GA, Garganeeva NP, Nasyrova RF. Molecular Basic of Pharmacotherapy of Cytokine Imbalance as a Component of Intervertebral Disc Degeneration Treatment. Int J Mol Sci 2023; 24:ijms24097692. [PMID: 37175399 PMCID: PMC10178334 DOI: 10.3390/ijms24097692] [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: 04/04/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Intervertebral disc degeneration (IDD) and associated conditions are an important problem in modern medicine. The onset of IDD may be in childhood and adolescence in patients with a genetic predisposition. With age, IDD progresses, leading to spondylosis, spondylarthrosis, herniated disc, spinal canal stenosis. One of the leading mechanisms in the development of IDD and chronic back pain is an imbalance between pro-inflammatory and anti-inflammatory cytokines. However, classical therapeutic strategies for correcting cytokine imbalance in IDD do not give the expected response in more than half of the cases. The purpose of this review is to update knowledge about new and promising therapeutic strategies based on the correction of the molecular mechanisms of cytokine imbalance in patients with IDD. This review demonstrates that knowledge of the molecular mechanisms of the imbalance between pro-inflammatory and anti-inflammatory cytokines may be a new key to finding more effective drugs for the treatment of IDD in the setting of acute and chronic inflammation.
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Affiliation(s)
- Natalia A Shnayder
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Azamat V Ashkhotov
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
| | - Vera V Trefilova
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Zaitun A Nurgaliev
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Maxim A Novitsky
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Marina M Petrova
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Ekaterina A Narodova
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Mustafa Al-Zamil
- Department of Physiotherapy, Faculty of Continuing Medical Education, Peoples' Friendship University of Russia, 117198 Moscow, Russia
| | - Galina A Chumakova
- Department of Therapy and General Medical Practice with a Course of Postgraduate Professional Education, Altai State Medical University, 656038 Barnaul, Russia
| | - Natalia P Garganeeva
- Department of General Medical Practice and Outpatient Therapy, Siberian State Medical University, 634050 Tomsk, Russia
| | - Regina F Nasyrova
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- International Centre for Education and Research in Neuropsychiatry, Samara State Medical University, 443016 Samara, Russia
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9
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Jiang Y, Dai Y, Liu Z, Liao Y, Sun S, Kong X, Hu J, Tang Y. The role of IL-23/IL-17 axis in ischemic stroke from the perspective of gut-brain axis. Neuropharmacology 2023; 231:109505. [PMID: 36924925 DOI: 10.1016/j.neuropharm.2023.109505] [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: 11/26/2022] [Revised: 03/08/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023]
Abstract
Bidirectional communication between central nervous system (CNS) and intestine is mediated by nerve, endocrine, immune and other pathways in gut-brain axis. Many diseases of CNS disturb the homeostasis of intestine and gut microbiota. Similarly, the dysbiosis of intestinal and gut microbiota also promotes the progression and deterioration of CNS diseases. IL-23/IL-17 axis is an important inflammatory axis which is widely involved in CNS diseases such as experimental autoimmune encephalomyelitis (EAE), multiple sclerosis (MS), and ischemic stroke (IS). Attributing to the long anatomically distances between ischemic brain and gut, previous studies on IL-23/IL-17 axis in IS are rarely focused on intestinal tissues. However, recent studies have found that IL-17+T cells in CNS mainly originate from intestine. The activation and migration of IL-17+T cells to CNS is likely to be affected by the altered intestinal homeostasis. These studies promoted the attention of IL-23/IL-17 axis and gut-brain axis. IS is difficult to treat because of its extremely complex pathological mechanism. This review mainly discusses the relationship between IL-23/IL-17 axis and IS from the perspective of gut-brain axis. By analyzing the immune pathways in gut-brain axis, the activation of IL-23/IL-17 axis, the roles of IL-23/IL-17 axis in gut, CNS and other systems after stoke, this review is expected to provide new enlightenments for the treatment strategies of IS.
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Affiliation(s)
- Yang Jiang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yajie Dai
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Zhenquan Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yan Liao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Shuyong Sun
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Xianghe Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Jingjing Hu
- Department of Pathology, University of California San Diego, CA92307, USA.
| | - Yibo Tang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 102488, China.
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10
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Jiang P, Zheng C, Xiang Y, Malik S, Su D, Xu G, Zhang M. The involvement of TH17 cells in the pathogenesis of IBD. Cytokine Growth Factor Rev 2023; 69:28-42. [PMID: 35871978 DOI: 10.1016/j.cytogfr.2022.07.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 02/07/2023]
Abstract
The pathogenesis of inflammatory bowel disease (IBD) is still unclear. Immune dysfunction may play a key role in the pathogenesis of IBD, in which the role of CD4+ T helper (Th) cells is particularly important. Th17 cells are a major component of CD4+ T cells, and their differentiation is regulated by a variety of extracellular signals, transcription factors, RNA, and posttranslational modifications. Th17 cells specifically produce IL-17 and play an important role in the protection of mucous membranes and epithelial tissues against infection by extracellular microbes. However, when immune regulation is dysfunctional, Th17 cells abnormally proliferate and produce large amounts of proinflammatory cytokines that can recruit other inflammatory cells, which together induce abnormal immune responses and result in the development of many autoimmune diseases. In recent years, studies have confirmed that Th17 cells play an important role in the pathogenesis of IBD, which makes it a possible target for IBD therapy. This article reviews the recent progress of Th17 cells involved in the pathogenesis of IBD and its targeted therapy.
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Affiliation(s)
- Ping Jiang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Chang Zheng
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Ying Xiang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Sara Malik
- Northwestern University Feinberg School of Medicine, Chicago 60611, IL, USA
| | - Dan Su
- FUJIFILM Diosynth Biotechnologies, Watertown 02472, MA, USA
| | - Guifang Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
| | - Mingming Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China; Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai 200001, China.
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Saleem S, Zia M, Siddiqui F, Ghouri M, Kulsoom U, Kawal S, Fatima S, Zehra S. Hyperfunction variant rs708035 of interleukin 1 receptor-associated kinases 2 gene involved in the predisposition of leprosy infection. J Gene Med 2023; 25:e3473. [PMID: 36670053 DOI: 10.1002/jgm.3473] [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: 10/27/2022] [Revised: 12/18/2022] [Accepted: 01/15/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Mycobacterium leprae (slow-growing bacteria) is the etiological agent for leprosy infection, which is a chronic granulomatous disease. Symptoms initiate with the loss of sensation in the affected areas, which can lead to severe injuries, cuts and burns. IRAK2 (interleukin-1 receptor-associated kinases 2) is reported to function in the regulation of the NFκB pathway. The frequency of the IRAK2 polymorphism (rs708035) was unknown in the Pakistani population. Therefore, the study was designed to identify the role of the rs708035 SNP (single nucleotide polymorphism) in susceptibility to leprosy. METHODOLOGY The case-control study was designed, and participants were selected by Ridley-Jopling Classification. Blood samples from healthy individuals and patients were collected after ethical approval. Genomic DNA was extracted for the amplification of selected polymorphisms by tetra-primer amplification refractory mutation system polymerase chain reaction. The desired products were observed via agarose gel (2.5%) electrophoresis followed by data analysis using bioinformatics tools (SNP Stats and SHEsis) and statistical tests (odds ratio, OR, and chi square). RESULTS The study revealed that the mutant genotype (TT) was found to be frequent among cases (22.80%) in comparison with the controls (1.66%). The SNP rs708035 was significantly associated with the progression of leprosy (χ2 = 17.62, p < 0.0001). The targeted SNP significantly increases the risk of leprosy 2.3 times (OR = 2.3119, 95% CI 1.2729-4.1989, p < 0.01). The genetic model also confirms the significant association of the A/T genotype with leprosy in the over-dominant model (OR = 2.83, 95% CI 1.16-6.89, p < 0.001). CONCLUSIONS The study revealed a significant association of the targeted SNP with leprosy and provided baseline data regarding the association of rs708035. The current research could be utilized for the preparation of biomarkers by considering a larger sample size. HIGHLIGHTS The patients suffering from leprosy faced various comorbidities, including hypertension and diabetes. The study reports for the first time a significant association of interleukin 1 receptor associated kinases 2 (IRAK2) single nucleotide polymorphism (SNP) rs708035 among the Pakistani population (Karachi). The current study provides baseline data to develop diagnostic biomarkers for early detection of leprosy.
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Affiliation(s)
- Saima Saleem
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Mutaher Zia
- Marie Adelaide Leprosy Centre, Karachi, Pakistan
| | - Farhatulain Siddiqui
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Maham Ghouri
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Ume Kulsoom
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Sidra Kawal
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Sehrish Fatima
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
| | - Sitwat Zehra
- The Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi. Karachi, Karachi, Pakistan
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Kim SH, Oh J, Roh WS, Park J, Chung KB, Lee GH, Lee YS, Kim JH, Lee HK, Lee H, Park CO, Kim DY, Lee MG, Kim TG. Pellino-1 promotes intrinsic activation of skin-resident IL-17A-producing T cells in psoriasis. J Allergy Clin Immunol 2023; 151:1317-1328. [PMID: 36646143 DOI: 10.1016/j.jaci.2022.12.823] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/19/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Psoriasis is a chronically relapsing inflammatory skin disease primarily perpetuated by skin-resident IL-17-producing T (T17) cells. Pellino-1 (Peli1) belongs to a member of E3 ubiquitin ligase mediating immune receptor signaling cascades, including nuclear factor kappa-light-chain enhancer of activated B cells (NF-κB) pathway. OBJECTIVE We explored the potential role of Peli1 in psoriatic inflammation in the context of skin-resident T17 cells. METHODS We performed single-cell RNA sequencing of relapsing and resolved psoriatic lesions with analysis for validation data set of psoriasis. Mice with systemic and conditional depletion of Peli1 were generated to evaluate the role of Peli1 in imiquimod-induced psoriasiform dermatitis. Pharmacologic inhibition of Peli1 in human CD4+ T cells and ex vivo human skin cultures was also examined to evaluate its potential therapeutic implications. RESULTS Single-cell RNA sequencing analysis revealed distinct T-cell subsets in relapsing psoriasis exhibiting highly enriched gene signatures for (1) tissue-resident T cells, (2) T17 cells, and (3) NF-κB signaling pathway including PELI1. Peli1-deficient mice were profoundly protected from psoriasiform dermatitis, with reduced IL-17A production and NF-κB activation in γδ T17 cells. Mice with conditional depletion of Peli1 treated with FTY720 revealed that Peli1 was intrinsically required for the skin-resident T17 cell immune responses. Notably, pharmacologic inhibition of Peli1 significantly ameliorated murine psoriasiform dermatitis and IL-17A production from the stimulated human CD4+ T cells and ex vivo skin explants modeling psoriasis. CONCLUSION Targeting Peli1 would be a promising therapeutic strategy for psoriasis by limiting skin-resident T17 cell immune responses.
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Affiliation(s)
- Sung Hee Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jongwook Oh
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Department of Pharmacology, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Won Seok Roh
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jeyun Park
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Bae Chung
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | | | | | - Jong Hoon Kim
- Deparment of Dermatology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Heung Kyu Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Ho Lee
- Graduate School of Cancer Science and Policy, National Cancer Center, Gyeonggi, Korea
| | - Chang-Ook Park
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Do-Young Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min-Geol Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.
| | - Tae-Gyun Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea.
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Molecular pathogenesis of Cutaneous T cell Lymphoma: Role of chemokines, cytokines, and dysregulated signaling pathways. Semin Cancer Biol 2022; 86:382-399. [PMID: 34906723 DOI: 10.1016/j.semcancer.2021.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 01/27/2023]
Abstract
Cutaneous T cell lymphomas (CTCLs) are a heterogeneous group of lymphoproliferative neoplasms that exhibit a wide spectrum of immune-phenotypical, clinical, and histopathological features. The biology of CTCL is complex and remains elusive. In recent years, the application of next-generation sequencing (NGS) has evolved our understanding of the pathogenetic mechanisms, including genetic aberrations and epigenetic abnormalities that shape the mutational landscape of CTCL and represent one of the important pro-tumorigenic principles in CTCL initiation and progression. Still, identification of the major pathophysiological pathways including genetic and epigenetic components that mediate malignant clonal T cell expansion has not been achieved. This is of prime importance given the role of malignant T cell clones in fostering T helper 2 (Th2)-bias tumor microenvironment and fueling progressive immune dysregulation and tumor cell growth in CTCL patients, manifested by the secretion of Th2-associated cytokines and chemokines. Alterations in malignant cytokine and chemokine expression patterns orchestrate the inflammatory milieu and influence the migration dynamics of malignant clonal T cells. Here, we highlight recent insights about the molecular mechanisms of CTCL pathogenesis, emphasizing the role of cytokines, chemokines, and associated downstream signaling networks in driving immune defects, malignant transformation, and disease progression. In-depth characterization of the CTCL immunophenotype and tumoral microenvironment offers a facile opportunity to expand the therapeutic armamentarium of CTCL, an intractable malignant skin disease with poor prognosis and in dire need of curative treatment approaches.
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Xiong DK, Shi X, Han MM, Zhang XM, Wu NN, Sheng XY, Wang JN. The regulatory mechanism and potential application of IL-23 in autoimmune diseases. Front Pharmacol 2022; 13:982238. [PMID: 36176425 PMCID: PMC9514453 DOI: 10.3389/fphar.2022.982238] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
IL-23 is a heterodimeric pro-inflammatory cytokine secreted by dendritic cells and macrophages that belongs to the IL-12 family. It has pro-inflammatory effects and is a key cytokine and upstream regulatory cytokine involved in protective immune responses, stimulating the differentiation and proliferation of downstream effectors such as Th17 cells. It is expressed in various autoimmune diseases such as psoriasis, systemic lupus erythematosus (SLE), rheumatoid arthritis (RA). The IL-23/TH17 axis formed by IL-23 and TH17 has been confirmed to participate in autoimmune diseases pathogenesis. IL-23R is the receptor for IL-23 and plays an activating role. Targeting IL-23 is currently the main strategy for the treatment of various autoimmune diseases. In this review we summarized the mechanism of action and clinical application potential of IL-23 in autoimmune diseases by summarizing the latest research results and reviewing the literature, which would help to further understand IL-23 and provide a theoretical basis for future clinical targeting and drug development.
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Affiliation(s)
- De-Kai Xiong
- School of Health Management, Anhui Medical University, Hefei, China
| | - Xiang Shi
- School of Health Management, Anhui Medical University, Hefei, China
| | - Miao-Miao Han
- School of Health Management, Anhui Medical University, Hefei, China
| | - Xing-Min Zhang
- School of Health Management, Anhui Medical University, Hefei, China
| | - Na-Na Wu
- School of Health Management, Anhui Medical University, Hefei, China
| | - Xiu-Yue Sheng
- School of Health Management, Anhui Medical University, Hefei, China
| | - Ji-Nian Wang
- School of Health Management, Anhui Medical University, Hefei, China
- Department of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- *Correspondence: Ji-Nian Wang,
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15
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Sun Y, Cai D, Hu W, Fang T. Identifying hub genes and miRNAs in Crohn’s disease by bioinformatics analysis. Front Genet 2022; 13:950136. [PMID: 36118873 PMCID: PMC9471261 DOI: 10.3389/fgene.2022.950136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/08/2022] [Indexed: 12/04/2022] Open
Abstract
Introduction: Crohn’s disease (CD) is a disease that manifests mainly as chronic inflammation of the gastrointestinal tract, which is still not well understood in terms of its pathogenesis. The aim of this study was to use bioinformatics analysis to identify differentially expressed genes (DEGs) and miRNAs with diagnostic and therapeutic potential in CD. Materials and methods: Three CD datasets (GSE179285, GSE102133, GSE75214) were downloaded from the Gene Expression Omnibus (GEO) database. DEGs between normal and CD tissues were identified using the GEO2R online tool. The Gene Ontology (GO) term and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of the DEGs were conducted using the clusterProfiler function in the R package. Protein-protein interaction network (PPI) analysis and visualization were performed with STRING and Cytoscape. Ten hub genes were identified using cytoHubba’s MCC algorithm and validated with datasets GSE6731 and GSE52746. Finally, the miRNA gene regulatory network was constructed by Cytoscape and NetworkAnalyst to predict potential microRNAs (miRNAs) associated with DEGs. Results: A total of 97 DEGs were identified, consisting of 88 downregulated genes and 9 upregulated genes. The enriched functions and pathways of the DEGs include immune system process, response to stress, response to cytokine and extracellular region. KEGG pathway analysis indicates that the genes were significantly enriched in Cytokine-cytokine receptor interaction, IL-17 signaling pathway, Rheumatoid arthritis and TNF signaling pathway. In combination with the results of the protein-protein interaction (PPI) network and CytoHubba, 10 hub genes including IL1B, CXCL8, CXCL10, CXCL1, CXCL2, CXCL5, ICAM1, IL1RN, TIMP1 and MMP3 were selected. Based on the DEG-miRNAs network construction, 5 miRNAs including hsa-mir-21-5p, hsa-mir-93-5p, hsa-mir-98-5p, hsa-mir-1-3p and hsa-mir-335-5p were identified as potential critical miRNAs. Conclusion: In conclusion, a total of 97 DEGs, 10 hub genes and 5 miRNAs that may be involved in the progression or occurrence of CD were identified in this study, which could be regarded as biomarkers of CD.
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Affiliation(s)
- Yuxin Sun
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Daxing Cai
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Weitao Hu
- Department of Rheumatology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Taiyong Fang
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- *Correspondence: Taiyong Fang,
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Zehra Okus F, Busra Azizoglu Z, Canatan H, Eken A. S1P analogues SEW2871, BAF312 and FTY720 affect human Th17 and Treg generation ex vivo. Int Immunopharmacol 2022; 107:108665. [DOI: 10.1016/j.intimp.2022.108665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 11/05/2022]
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17
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Hu W, Shang R, Yang J, Chen C, Liu Z, Liang G, He W, Luo G. Skin γδ T Cells and Their Function in Wound Healing. Front Immunol 2022; 13:875076. [PMID: 35479079 PMCID: PMC9035842 DOI: 10.3389/fimmu.2022.875076] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/21/2022] [Indexed: 01/08/2023] Open
Abstract
For the skin immune system, γδ T cells are important components, which help in defensing against damage and infection of skin. Compared to the conventional αβ T cells, γδ T cells have their own differentiation, development and activation characteristics. In adult mice, dendritic epidermal T cells (DETCs), Vγ4 and Vγ6 γδ T cells are the main subsets of skin, the coordination and interaction among them play a crucial role in wound repair. To get a clear overview of γδ T cells, this review synopsizes their derivation, development, colonization and activation, and focuses their function in acute and chronic wound healing, as well as the underlining mechanism. The aim of this paper is to provide cues for the study of human epidermal γδ T cells and the potential treatment for skin rehabilitation.
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Affiliation(s)
- Wengang Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Jiacai Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Cheng Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Zhihui Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
| | - Guangping Liang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
- *Correspondence: Guangping Liang, ; Weifeng He, ; Gaoxing Luo,
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
- *Correspondence: Guangping Liang, ; Weifeng He, ; Gaoxing Luo,
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Chongqing Key Laboratory for Disease Proteomics, Chongqing, China
- *Correspondence: Guangping Liang, ; Weifeng He, ; Gaoxing Luo,
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Tehlirian C, Singh RSP, Pradhan V, Roberts ES, Tarabar S, Peeva E, Vincent MS, Gale JD. Oral tyrosine kinase 2 inhibitor PF-06826647 demonstrates efficacy and an acceptable safety profile in participants with moderate-to-severe plaque psoriasis in a phase 2b, randomized, double-blind, placebo-controlled study. J Am Acad Dermatol 2022; 87:333-342. [DOI: 10.1016/j.jaad.2022.03.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 10/18/2022]
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Autophagy impairment in liver CD11c + cells promotes non-alcoholic fatty liver disease through production of IL-23. Nat Commun 2022; 13:1440. [PMID: 35301333 PMCID: PMC8931085 DOI: 10.1038/s41467-022-29174-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 02/23/2022] [Indexed: 12/24/2022] Open
Abstract
There has been a global increase in rates of obesity with a parallel epidemic of non-alcoholic fatty liver disease (NAFLD). Autophagy is an essential mechanism involved in the degradation of cellular material and has an important function in the maintenance of liver homeostasis. Here, we explore the effect of Autophagy-related 5 (Atg5) deficiency in liver CD11c+ cells in mice fed HFD. When compared to control mice, Atg5-deficient CD11c+ mice exhibit increased glucose intolerance and decreased insulin sensitivity when fed HFD. This phenotype is associated with the development of NAFLD. We observe that IL-23 secretion is induced in hepatic CD11c+ myeloid cells following HFD feeding. We demonstrate that both therapeutic and preventative IL-23 blockade alleviates glucose intolerance, insulin resistance and protects against NAFLD development. This study provides insights into the function of autophagy and IL-23 production by hepatic CD11c+ cells in NAFLD pathogenesis and suggests potential therapeutic targets. The function of autophagy and how this affects non-alcoholic fatty liver disease is not fully known. Here the authors show that in mice with a targeted disruption of the autophagy pathway in CD11c+ cells, development of NAFLD is accelerated involving IL-23 and blocking of IL-23 reduces disease.
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Harris KM, Clements MA, Kwilasz AJ, Watkins LR. T cell transgressions: Tales of T cell form and function in diverse disease states. Int Rev Immunol 2022; 41:475-516. [PMID: 34152881 PMCID: PMC8752099 DOI: 10.1080/08830185.2021.1921764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Insights into T cell form, function, and dysfunction are rapidly evolving. T cells have remarkably varied effector functions including protecting the host from infection, activating cells of the innate immune system, releasing cytokines and chemokines, and heavily contributing to immunological memory. Under healthy conditions, T cells orchestrate a finely tuned attack on invading pathogens while minimizing damage to the host. The dark side of T cells is that they also exhibit autoreactivity and inflict harm to host cells, creating autoimmunity. The mechanisms of T cell autoreactivity are complex and dynamic. Emerging research is elucidating the mechanisms leading T cells to become autoreactive and how such responses cause or contribute to diverse disease states, both peripherally and within the central nervous system. This review provides foundational information on T cell development, differentiation, and functions. Key T cell subtypes, cytokines that create their effector roles, and sex differences are highlighted. Pathological T cell contributions to diverse peripheral and central disease states, arising from errors in reactivity, are highlighted, with a focus on multiple sclerosis, rheumatoid arthritis, osteoarthritis, neuropathic pain, and type 1 diabetes.
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Affiliation(s)
| | | | | | - Linda R. Watkins
- Corresponding author: Ph: 720-387-0304, Fax: 303-735-8290, , Address: 2860 Wilderness Place, University of Colorado, Boulder, CO 80301
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NF-κB1 Contributes to Imiquimod-Induced Psoriasis-Like Skin Inflammation by Inducing Vγ4 +Vδ4 +γδT17 Cells. J Invest Dermatol 2021; 142:1639-1649.e5. [PMID: 34774872 DOI: 10.1016/j.jid.2021.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/04/2021] [Accepted: 11/04/2021] [Indexed: 11/22/2022]
Abstract
Recent studies have identified NF-κB1 as a new disease susceptibility gene for psoriasis. Although accumulating evidence has shown the importance of NF-κB signaling in various cell types in the pathogenesis of psoriasis, it remains unclear how NF-κB1 contributes to the pathogenesis of psoriasis. In this study, we examined psoriasis-like skin diseases induced by topical administration of imiquimod in Nf-κb1‒deficient (Nf-κb1-/-) mice and littermate wild-type (WT) mice. Compared with WT mice, Nf-κb1-/- mice exhibited attenuated skin inflammation. The numbers of Vγ4+Vδ4+γδT17 cells, which cause skin inflammation in this model, were significantly reduced in the skin and draining lymph nodes in imiquimod-treated Nf-κb1-/- mice. Nf-κb1 is preferentially phosphorylated in Vγ4+Vδ4+γδT17 cells in WT mice. In vitro proliferation of Vγ4+Vδ4+γδT17 cells but not conventional CD4+ T cells was significantly impaired in Nf-κb1-/- mice compared with that in WT mice. RNA-sequencing analyses revealed that the expression of E2 factor target genes was decreased in Vγ4+Vδ4+γδT cells by the absence of NF-κB1. Consistently, the cell cycle progression of Vγ4+Vδ4+γδT cells was reduced in Nf-κb1-/- mice compared with that in WT mice. These results suggest that Nf-κb1 plays a crucial role in the pathogenesis of imiquimod-induced psoriasis-like skin inflammation by promoting the proliferation of Vγ4+Vδ4+γδT17 cells.
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Ex Vivo Human Colon Tissue Exposure to Pristine Graphene Activates Genes Involved in the Binding, Adhesion and Proliferation of Epithelial Cells. Int J Mol Sci 2021; 22:ijms222111443. [PMID: 34768873 PMCID: PMC8584180 DOI: 10.3390/ijms222111443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 12/13/2022] Open
Abstract
Toxicology studies on pristine graphene are limited and lack significant correlations with actual human response. The goal of the current study was to determine the response of total colonic human tissue to pristine graphene exposure. Biopsy punches of colon tissues from healthy human were used to assess the biological response after ex vivo exposure to graphene at three different concentrations (1, 10, and 100 µg/mL). mRNA expression of specific genes or intestinal cytokine abundance was assessed using real-time PCR or multiplex immunoassays, respectively. Pristine graphene-activated genes that are related to binding and adhesion (GTPase and KRAS) within 2 h of exposure. Furthermore, the PCNA (proliferating cell nuclear antigen) gene was upregulated after exposure to graphene at all concentrations. Ingenuity pathway analysis revealed that STAT3 and VEGF signaling pathways (known to be involved in cell proliferation and growth) were upregulated. Graphene exposure (10 µg/mL) for 24 h significantly increased levels of pro-inflammatory cytokines IFNγ, IL-8, IL-17, IL-6, IL-9, MIP-1α, and Eotaxin. Collectively, these results indicated that graphene may activate the STAT3-IL23-IL17 response axis. The findings in this study provide information on toxicity evaluation using a human-relevant ex vivo colon model and serve as a basis for further exploration of its bio-applications.
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Huang N, Dong H, Luo Y, Shao B. Th17 Cells in Periodontitis and Its Regulation by A20. Front Immunol 2021; 12:742925. [PMID: 34557201 PMCID: PMC8453085 DOI: 10.3389/fimmu.2021.742925] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/23/2021] [Indexed: 02/05/2023] Open
Abstract
Periodontitis is a prevalent chronic disease that results in loss of periodontal ligament and bone resorption. Triggered by pathogens and prolonged inflammation, periodontitis is modulated by the immune system, especially pro-inflammatory cells, such as T helper (Th) 17 cells. Originated from CD4+ Th cells, Th17 cells play a central role for they drive and regulate periodontal inflammation. Cytokines secreted by Th17 cells are also major players in the pathogenesis of periodontitis. Given the importance of Th17 cells, modulators of Th17 cells are of great clinical potential and worth of discussion. This review aims to provide an overview of the current understanding of the effect of Th17 cells on periodontitis, as well as a brief discussion of current and potential therapies targeting Th17 cells. Lastly, we highlight this article by summarizing the causal relationship between A20 (encoded by TNFAIP3), an anti-inflammatory molecule, and Th17 cell differentiation.
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Affiliation(s)
- Ning Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hao Dong
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuqi Luo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bin Shao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Rahmawati SF, te Velde M, Kerstjens HAM, Dömling ASS, Groves MR, Gosens R. Pharmacological Rationale for Targeting IL-17 in Asthma. FRONTIERS IN ALLERGY 2021; 2:694514. [PMID: 35387016 PMCID: PMC8974835 DOI: 10.3389/falgy.2021.694514] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/07/2021] [Indexed: 01/09/2023] Open
Abstract
Asthma is a respiratory disease that currently affects around 300 million people worldwide and is defined by coughing, shortness of breath, wheezing, mucus overproduction, chest tightness, and expiratory airflow limitation. Increased levels of interleukin 17 (IL-17) have been observed in sputum, nasal and bronchial biopsies, and serum of patients with asthma compared to healthy controls. Patients with higher levels of IL-17 have a more severe asthma phenotype. Biologics are available for T helper 2 (Th2)-high asthmatics, but the Th17-high subpopulation has a relatively low response to these treatments, rendering it a rather severe asthma phenotype to treat. Several experimental models suggest that targeting the IL-17 pathway may be beneficial in asthma. Moreover, as increased activation of the Th17/IL-17 axis is correlated with reduced inhaled corticosteroids (ICS) sensitivity, targeting the IL-17 pathway might reverse ICS unresponsiveness. In this review, we present and discuss the current knowledge on the role of IL-17 in asthma and its interaction with the Th2 pathway, focusing on the rationale for therapeutic targeting of the IL-17 pathway.
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Affiliation(s)
- Siti Farah Rahmawati
- Department of Molecular Pharmacology, University of Groningen, Groningen, Netherlands
- Department of Pharmacology and Clinical Pharmacy, Institut Teknologi Bandung, Bandung, Indonesia
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen (UMCG), Groningen, Netherlands
| | - Maurice te Velde
- Department of Molecular Pharmacology, University of Groningen, Groningen, Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen (UMCG), Groningen, Netherlands
| | - Huib A. M. Kerstjens
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen (UMCG), Groningen, Netherlands
- Department of Pulmonary Medicine, University of Groningen and University Medical Center Groningen (UMCG), Groningen, Netherlands
| | | | | | - Reinoud Gosens
- Department of Molecular Pharmacology, University of Groningen, Groningen, Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen (UMCG), Groningen, Netherlands
- *Correspondence: Reinoud Gosens
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25
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Luo JW, Hu Y, Liu J, Yang H, Huang P. Interleukin-22: a potential therapeutic target in atherosclerosis. Mol Med 2021; 27:88. [PMID: 34388961 PMCID: PMC8362238 DOI: 10.1186/s10020-021-00353-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/07/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Atherosclerosis is recognized as a chronic immuno-inflammatory disease that is characterized by the accumulation of immune cells and lipids in the vascular wall. In this review, we focus on the latest advance regarding the regulation and signaling pathways of IL-22 and highlight its impacts on atherosclerosis. MAIN BODY IL-22, an important member of the IL-10 family of cytokines, is released by cells of the adaptive and innate immune system and plays a key role in the development of inflammatory diseases. The binding of IL-22 to its receptor complex can trigger a diverse array of downstream signaling pathways, in particular the JAK/STAT, to induce the expression of chemokines and proinflammatory cytokines. Recently, numerous studies suggest that IL-22 is involved in the pathogenesis of atherosclerosis by regulation of VSMC proliferation and migration, angiogenesis, inflammatory response, hypertension, and cholesterol metabolism. CONCLUSION IL-22 promotes the development of atherosclerosis by multiple mechanisms, which may be a promising therapeutic target in the pathogenesis of atherosclerosis.
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Affiliation(s)
- Jin-Wen Luo
- Department of Cardio-Thoracic Surgery, Hunan Children's Hospital, Changsha, 410007, People's Republic of China
| | - Yuan Hu
- Department of Ultrasound Medicine, Hunan Children's Hospital, Changsha, 410007, People's Republic of China
| | - Jian Liu
- Department of Cardio-Thoracic Surgery, Hunan Children's Hospital, Changsha, 410007, People's Republic of China
| | - Huan Yang
- Department of Respiratory Medicine, Hunan Provincial People's Hospital, Changsha, Hunan, 410001, People's Republic of China.
| | - Peng Huang
- Department of Cardio-Thoracic Surgery, Hunan Children's Hospital, Changsha, 410007, People's Republic of China.
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26
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Miklavcic JJ, Li Q, Skolnick J, Thomson ABR, Mazurak VC, Clandinin MT. Ganglioside Alters Phospholipase Trafficking, Inhibits NF-κB Assembly, and Protects Tight Junction Integrity. Front Nutr 2021; 8:705172. [PMID: 34291075 PMCID: PMC8286996 DOI: 10.3389/fnut.2021.705172] [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: 05/04/2021] [Accepted: 06/04/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Aims: Dietary gangliosides are present in human milk and consumed in low amounts from organ meats. Clinical and animal studies indicate that dietary gangliosides attenuate signaling processes that are a hallmark of inflammatory bowel disease (IBD). Gangliosides decrease pro-inflammatory markers, improve intestinal permeability, and reduce symptoms characteristic in patients with IBD. The objective of this study was to examine mechanisms by which dietary gangliosides exert beneficial effects on intestinal health. Methods: Studies were conducted in vitro using CaCo-2 intestinal epithelial cells. Gangliosides were extracted from milk powder and incubated with differentiated CaCo-2 cells after exposure to pro-inflammatory stimuli. Gut barrier integrity was assessed by electron microscopy, epithelial barrier function was examined by measuring transepithelial electric resistance, and content of HBD-2, IL-23, NF-κB, and sPLA2 was assessed by ELISA. Results: Ganglioside attenuated the decrease in integrity of tight junctions induced by pro-inflammatory stimuli and improved epithelial barrier function (P < 0.05). Ganglioside decreased the basolateral secretion of sPLA2 (P ≤ 0.05), lowered HBD-2 and IL-23 levels (P ≤ 0.05), and inhibited NF-κB activation (P ≤ 0.05). Conclusions: In summary, the present study indicates that ganglioside GD3 improves intestinal integrity by altering sPLA2 trafficking, and the production of pro-inflammatory mediators is mitigated by decreasing assembly of the NF-κB complex. Dietary gangliosides may have promising potential beneficial effects in IBD as decreased inflammatory signaling, improved intestinal integrity, and maintenance of epithelial barrier function have been demonstrated in vitro.
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Affiliation(s)
- John J Miklavcic
- Schmid College of Science and Technology, Chapman University, Orange, CA, United States.,School of Pharmacy, Chapman University, Irvine, CA, United States
| | - Qun Li
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Jordan Skolnick
- Schmid College of Science and Technology, Chapman University, Orange, CA, United States
| | - Alan B R Thomson
- Division of Gastroenterology, Western University, London, ON, Canada
| | - Vera C Mazurak
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Micheal Tom Clandinin
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada.,Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada
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27
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Investigation of IL-17A Serum Levels in Patients with Nonmelanoma Skin Cancer. Dermatol Res Pract 2021; 2021:5540163. [PMID: 34239554 PMCID: PMC8233089 DOI: 10.1155/2021/5540163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/11/2021] [Indexed: 01/13/2023] Open
Abstract
Background Role of interleukin 17A (IL-17A) in carcinogenesis and cancer growth is controversial. Although some researches support its antitumor activity, some others suggest that it promotes the growth and development of different types of cancer including skin cancer by activation of STAT3. Although the function of the cytokines such as IL-17A has been extensively studied in various types of cancer, nonmelanoma skin cancer (NMSC) has not received much attention. Therefore, the present study was aimed to investigate the serum levels of IL-17A in NMSC patients. Methods This cross-sectional study was performed on 60 patients with basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) as well as 57 age-sex matched healthy individuals as control group. Measurement of IL-17A serum levels in both case and control groups was performed by a commercially reliable sandwich enzyme-linked immunosorbent assay (ELISA) kit. Results In this study, we observed that IL-17A serum levels in NMSC patients were significantly higher than the control group (P < 0.001). Also, both BCC and SCC patients had higher levels of IL-17A in their sera in comparison to the controls (P=0.001 and P < 0.001, respectively). However, there was no significant difference between SCC and BCC patients regarding serum levels of IL-17A. Conclusion According to our results, it can be concluded that IL-17A may play a role in inducing the growth and progression of NMSC and it can be used as a therapeutic target in these patients in future.
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The Roles of IL-17, IL-21, and IL-23 in the Helicobacter pylori Infection and Gastrointestinal Inflammation: A Review. Toxins (Basel) 2021; 13:toxins13050315. [PMID: 33924897 PMCID: PMC8147029 DOI: 10.3390/toxins13050315] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/17/2022] Open
Abstract
Although millions of people have been infected by Helicobacter pylori (H. pylori), only a small proportion of infected individuals will develop adverse outcomes, ranging from chronic gastritis to gastric cancer. Advanced development of the disease has been well-linked with chronic inflammation, which is significantly impacted by the adaptive and humoral immunity response. From the perspective of cellular immunity, this review aims to clarify the intricate axis between IL-17, IL-21, and IL-23 in H. pylori-related diseases and the pathogenesis of inflammatory gastrointestinal diseases. CD4+ helper T (Th)-17 cells, with the hallmark pleiotropic cytokine IL-17, can affect antimicrobial activity and the pathogenic immune response in the gut environment. These circumstances cannot be separated, as the existence of affiliated cytokines, including IL-21 and IL-23, help maintain Th17 and accommodate humoral immune cells. Comprehensive understanding of the dynamic interaction between molecular host responses in H. pylori-related diseases and the inflammation process may facilitate further development of immune-based therapy.
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29
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Ultraviolet Radiation and Chronic Inflammation-Molecules and Mechanisms Involved in Skin Carcinogenesis: A Narrative Review. Life (Basel) 2021; 11:life11040326. [PMID: 33917793 PMCID: PMC8068112 DOI: 10.3390/life11040326] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/24/2021] [Accepted: 04/06/2021] [Indexed: 12/21/2022] Open
Abstract
The process of skin carcinogenesis is still not fully understood. Both experimental and epidemiological evidence indicate that chronic inflammation is one of the hallmarks of microenvironmental-agent-mediated skin cancers and contributes to its development. Maintaining an inflammatory microenvironment is a condition leading to tumor formation. Multiple studies focus on the molecular pathways activating tumorigenesis by inflammation and indicate several biomarkers and factors that can improve diagnostic and prognostic processes in oncology and dermatology. Reactive oxygen species produced by ultraviolet radiation, oxidizers, or metabolic processes can damage cells and initiate pro-inflammatory cascades. Considering the potential role of inflammation in cancer development and metastasis, the identification of early mechanisms involved in carcinogenesis is crucial for clinical practice and scientific research. Moreover, it could lead to the progress of advanced skin cancer therapies. We focus on a comprehensive analysis of available evidence and on understanding how chronic inflammation and ultraviolet radiation can result in skin carcinogenesis. We present the inflammatory environment as complex molecular networks triggering tumorigenesis and constituting therapeutic targets.
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30
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Schmitt H, Neurath MF, Atreya R. Role of the IL23/IL17 Pathway in Crohn's Disease. Front Immunol 2021; 12:622934. [PMID: 33859636 PMCID: PMC8042267 DOI: 10.3389/fimmu.2021.622934] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/15/2021] [Indexed: 12/22/2022] Open
Abstract
Crohn's disease (CD) is a chronic relapsing disorder of the gastrointestinal tract and represents one of the main entities of inflammatory bowel disease (IBD). CD affects genetically susceptible patients that are influenced by environmental factors and the intestinal microbiome, which results in excessive activation of the mucosal immune system and aberrant cytokine responses. Various studies have implicated the pro-inflammatory cytokines IL17 and IL23 in the pathogenesis of CD. IL23 is a member of the IL12 family of cytokines and is able to enhance and affect the expansion of pathogenic T helper type 17 (Th17) cells through various mechanisms, including maintenance of Th17 signature genes, upregulation of effector genes or suppression of repressive factors. Moreover, IL17 and IL23 signaling is able to induce a cascade of pro-inflammatory molecules like TNF, IFNγ, IL22, lymphotoxin, IL1β and lipopolysaccharide (LPS). Here, IL17A and TNF are known to mediate signaling synergistically to drive expression of inflammatory genes. Recent advances in understanding the immunopathogenetic mechanisms underlying CD have led to the development of new biological therapies that selectively intervene and inhibit inflammatory processes caused by pro-inflammatory mediators like IL17 and IL23. Recently published data demonstrate that treatment with selective IL23 inhibitors lead to markedly high response rates in the cohort of CD patients that failed previous anti-TNF therapy. Macrophages are considered as a main source of IL23 in the intestine and are supposed to play a key role in the molecular crosstalk with T cell subsets and innate lymphoid cells in the gut. The following review focuses on mechanisms, pathways and specific therapies in Crohn's disease underlying the IL23/IL17 pathway.
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Affiliation(s)
- Heike Schmitt
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
| | - Markus F. Neurath
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
| | - Raja Atreya
- First Department of Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Erlangen, Germany
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31
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Wu G, Nie W, Wang Q, Hao Y, Gong S, Zheng Y, Lv H. Umbelliferone Ameliorates Complete Freund Adjuvant-Induced Arthritis via Reduction of NF-κB Signaling Pathway in Osteoclast Differentiation. Inflammation 2021; 44:1315-1329. [PMID: 33484396 DOI: 10.1007/s10753-021-01418-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 10/19/2020] [Accepted: 01/08/2021] [Indexed: 12/22/2022]
Abstract
Osteoclasts, bone-resorbing somatic cells, are directly responsible for bone destruction during rheumatoid arthritis. Complete Freund adjuvant (CFA) is a widely used animal model using rodents for studying rheumatoid arthritis (RA), which effectively manifests serious cartilage destruction and progressive bone erosion, affecting synovial joints and serious joint dysfunction. It was considered that joint injury in RA is induced through systemic inflammation pathway. Umbelliferone (UF), a coumarin derivative of Agele marmilosa, possesses anti-inflammatory activity. In the current study, we scrutinize the effect of umbelliferone on CFA-induced arthritis model and explore the possible mechanism on bone destruction. Intradermal administration of CFA (0.05 mL) was to induce RA manifestations in the experimental rats and the same oral administration of UF was received. The anti-arthritic activity of UF was determined by its inhibitory activity on various biochemical markers, viz., pro-inflammatory, inflammatory, antioxidant enzymes, and hematological parameters elevated during RA condition. We also estimated the mRNA expression of osteoclast parameters. Obtained result disclosed significant reduction in the paw edema and increment of the body weight after UF administration. UF reduce the inflammatory mediatory such as COX-2, PGE2, NF-kB, and VEGF; pro-inflammatory cytokines include TNF-α, IL-1β, IL-6, IL-10, and IL-17 significantly. Moreover, UF treatment significantly reduced the osteoclast number via modulating the RANKL/RANK/OPG ratio. Furthermore, administration of umbelliferone significantly (P < 0.001) suppressed the NF-κB and VEGF. Collectively, our results indicated the novel role of umbelliferone in osteoclastogenesis and proved that umbelliferone is a modern therapeutic tool as a natural agent for treating arthritis and other autoimmune disorders with bone degradation.
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Affiliation(s)
- Guofeng Wu
- Department of Articular Orthopaedics, The First People's Hospital of Changzhou, Changzhou, 213000, Jiangsu, China
| | - Wenbo Nie
- Department of Orthopaedics, Shanxian Central Hospital, Heze, 274300, Shandong, China
| | - Qiu Wang
- Department of Surgery, Hot Spring Sanatorium of Linyi, Shandong Coal (Linyi Hedong Central Hospital, Linyi, 276032, Shandong, China
| | - Youguo Hao
- Department of Rehabilitation, Shanghai Putuo People's Hospital, Shanghai, 200060, China
| | - Shaohua Gong
- Department of Spinal surgery, Baoshan Branch, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201999, China
| | - Yuxin Zheng
- Department of Orthopedics, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200021, China
| | - Hao Lv
- Department of Orthopedics Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
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32
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Rosine N, Miceli-Richard C. Innate Cells: The Alternative Source of IL-17 in Axial and Peripheral Spondyloarthritis? Front Immunol 2021; 11:553742. [PMID: 33488572 PMCID: PMC7821711 DOI: 10.3389/fimmu.2020.553742] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Spondyloarthritis (SpA) is a chronic inflammatory rheumatism characterized by inflammation of sacroiliac joints, peripheral joints, and spine. The Assessment of SpondyloArthritis Society describes three disease forms: axial (axSpA), peripheral, and enthesitic SpA. Each may be associated with extra-articular manifestations: psoriasis, inflammatory bowel disease, and acute anterior uveitis. Genome-wide association studies performed in axSpA and psoriatic arthritis (PsA) have shown a shared genetic background, especially the interleukin 23 (IL-23)/IL-17 pathway, which suggests pathophysiological similarities. The convincing positive results of clinical trials assessing the effect of secukinumab and ixekizumab (anti-IL-17A monoclonal antibodies) in axSpA and PsA have reinforced the speculated crucial role of IL-17 in SpA. Nevertheless, and obviously unexpectedly, the differential efficacy of anti-IL-23–targeted treatments between axSpA (failure) and PsA (success) has profoundly disrupted our presumed knowledge of disease pathogeny. The cells able to secrete IL-17, their dependence on IL-23, and their respective role according to the clinical form of the disease is at the heart of the current debate to potentially explain these observed differences in efficacy of IL-23/IL-17–targeted therapy. In fact, IL-17 secretion is usually mainly related to T helper 17 lymphocytes. Nevertheless, several innate immune cells express IL-23 receptor and can produce IL-17. To what extent these alternative cell populations can produce IL-17 independent of IL-23 and their respective involvement in axSpA and PsA are the crucial scientific questions in SpA. From this viewpoint, this is a nice example of a reverse path from bedside to bench, in which the results of therapeutic trials allow for reflecting more in depth on the pathophysiology of a disease. Here we provide an overview of each innate immunity-producing IL-17 cell subset and their respective role in disease pathogeny at the current level of our knowledge.
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Affiliation(s)
- Nicolas Rosine
- Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Immunoregulation Unit, Paris, France
| | - Corinne Miceli-Richard
- Unité Mixte AP-HP/Institut Pasteur, Institut Pasteur, Immunoregulation Unit, Paris, France.,Paris University, Department of Rheumatology-Hôpital Cochin. Assistance Publique-Hôpitaux de Paris, EULAR Center of Excellence, Paris, France
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Gracey E, Hromadová D, Lim M, Qaiyum Z, Zeng M, Yao Y, Srinath A, Baglaenko Y, Yeremenko N, Westlin W, Masse C, Müller M, Strobl B, Miao W, Inman RD. TYK2 inhibition reduces type 3 immunity and modifies disease progression in murine spondyloarthritis. J Clin Invest 2020; 130:1863-1878. [PMID: 32149730 PMCID: PMC7108927 DOI: 10.1172/jci126567] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/14/2020] [Indexed: 12/17/2022] Open
Abstract
Spondyloarthritis (SpA) represents a family of inflammatory diseases of the spine and peripheral joints. Ankylosing spondylitis (AS) is the prototypic form of SpA in which progressive disease can lead to fusion of the spine. Therapeutically, knowledge of type 3 immunity has translated into the development of IL-23– and IL-17A–blocking antibodies for the treatment of SpA. Despite being able to provide symptomatic control, the current biologics do not prevent the fusion of joints in AS patients. Thus, there is an unmet need for disease-modifying drugs. Genetic studies have linked the Janus kinase TYK2 to AS. TYK2 is a mediator of type 3 immunity through intracellular signaling of IL-23. Here, we describe and characterize a potentially novel small-molecule inhibitor of TYK2 that blocked IL-23 signaling in vitro and inhibited disease progression in animal models of SpA. The effect of the inhibitor appears to be TYK2 specific, using TYK2-inactive mice, which further revealed a duality in the induction of IL-17A and IL-22 by IL-23. Specifically, IL-22 production was TYK2/JAK2/STAT3 dependent, while IL-17A was mostly JAK2 dependent. Finally, we examined the effects of AS-associated TYK2 SNPs on TYK2 expression and function and correlated them with AS disease progression. This work provides evidence that TYK2 inhibitors have great potential as an orally delivered therapeutic for SpA.
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Affiliation(s)
- Eric Gracey
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Dominika Hromadová
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Melissa Lim
- Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Zoya Qaiyum
- Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Michael Zeng
- Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Yuchen Yao
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Archita Srinath
- Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Yuriy Baglaenko
- Divisions of Genetics and Rheumatology, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Natalia Yeremenko
- Division of Clinical Immunology and Rheumatology, Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | | | - Craig Masse
- Nimbus Therapeutics, Cambridge, Massachusetts, USA
| | - Mathias Müller
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Birgit Strobl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Wenyan Miao
- Nimbus Therapeutics, Cambridge, Massachusetts, USA
| | - Robert D Inman
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Genetics and Development, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Spondylitis Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
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34
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Ritter K, Sodenkamp JC, Hölscher A, Behrends J, Hölscher C. IL-6 is not Absolutely Essential for the Development of a TH17 Immune Response after an Aerosol Infection with Mycobacterium Tuberculosis H37rv. Cells 2020; 10:cells10010009. [PMID: 33375150 PMCID: PMC7822128 DOI: 10.3390/cells10010009] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 12/12/2022] Open
Abstract
Anti-inflammatory treatment of chronic inflammatory diseases often increases susceptibility to infectious diseases such as tuberculosis (TB). Since numerous chronic inflammatory and autoimmune diseases are mediated by interleukin (IL)-6-induced T helper (TH) 17 cells, a TH17-directed anti-inflammatory therapy may be preferable to an IL-12-dependent TH1 inhibition in order to avoid reactivation of latent infections. To assess, however, the risk of inhibition of IL-6-dependent TH17-mediated inflammation, we examined the TH17 immune response and the course of experimental TB in IL-6- and T-cell-specific gp130-deficient mice. Our study revealed that the absence of IL-6 or gp130 on T cells has only a minor effect on the development of antigen-specific TH1 and TH17 cells. Importantly, these gene-deficient mice were as capable as wild type mice to control mycobacterial infection. Together, in contrast to its key function for TH17 development in other inflammatory diseases, IL-6 plays an inferior role for the generation of TH17 immune responses during experimental TB.
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Affiliation(s)
- Kristina Ritter
- Infection Immunology, Research Centre Borstel, D-23845 Borstel, Germany; (K.R.); (J.C.S.); (A.H.)
| | - Jan Christian Sodenkamp
- Infection Immunology, Research Centre Borstel, D-23845 Borstel, Germany; (K.R.); (J.C.S.); (A.H.)
| | - Alexandra Hölscher
- Infection Immunology, Research Centre Borstel, D-23845 Borstel, Germany; (K.R.); (J.C.S.); (A.H.)
| | - Jochen Behrends
- Core Facility Fluorescence Cytometry, Research Centre Borstel, D-23845 Borstel, Germany;
| | - Christoph Hölscher
- Infection Immunology, Research Centre Borstel, D-23845 Borstel, Germany; (K.R.); (J.C.S.); (A.H.)
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Borstel-Lübeck-Riems, D-23845 Borstel, Germany
- Correspondence:
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35
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Kim SJ, Saeidi S, Cho NC, Kim SH, Lee HB, Han W, Noh DY, Surh YJ. Interaction of Nrf2 with dimeric STAT3 induces IL-23 expression: Implications for breast cancer progression. Cancer Lett 2020; 500:147-160. [PMID: 33278500 DOI: 10.1016/j.canlet.2020.11.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/23/2020] [Accepted: 11/28/2020] [Indexed: 12/19/2022]
Abstract
Persistent activation of STAT3 and Nrf2 is considered to stimulate the aggressive behavior of basal-like breast cancer (BLBC). However, the precise mechanism underlying sustained overactivation of these transcription factors and their roles in breast cancer progression remain elusive. Analysis of the TCGA multi-omics data showed that high levels of STAT3 and Nrf2 mRNA were correlated with elevated expression of P-STAT3Y705 and Nrf2 target proteins in breast cancer patients. Our present study demonstrates a unique interaction between Nrf2 and STAT3 in the maintenance and progression of BLBC. RNA sequencing analysis identified the gene encoding IL-23A upregulated by concurrent binding of STAT3 and Nrf2 to its promoter. IL-23A depletion also showed the similar phenotypic changes to those caused by double knockdown of both transcription factors. In conclusion, the STAT3-Nrf2 interaction accelerates BLBC growth and progression by augmenting IL-23A expression, which underscores the importance of subtype-specific molecular pathways in human breast cancer.
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Affiliation(s)
- Su-Jung Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Soma Saeidi
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, South Korea
| | - Nam-Chul Cho
- Korea Chemical Bank, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Seung Hyeon Kim
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea; Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea
| | - Han-Byoel Lee
- Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul, 03087, South Korea
| | - Wonshik Han
- Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul, 03087, South Korea
| | - Dong-Young Noh
- Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul, 03087, South Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, South Korea; Cancer Research Institute, Seoul National University, Seoul, 03080, South Korea.
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Li L, Wu Z, Wu M, Qiu X, Wu Y, Kuang Z, Wang L, Sun T, Liu Y, Yi S, Jing H, Zhou S, Chen B, Wu D, Wu W, Liu J. IBI112, a selective anti-IL23p19 monoclonal antibody, displays high efficacy in IL-23-induced psoriasiform dermatitis. Int Immunopharmacol 2020; 89:107008. [PMID: 33069927 DOI: 10.1016/j.intimp.2020.107008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 11/16/2022]
Abstract
Psoriasis is a highly prevalent inflammatory skin disease. Plaque psoriasis is the most common type of psoriasis, and the interleukin (IL)-23/IL-17 axis plays a key role in disease progression. In this article, we describe IBI112, a highly potent anti-IL-23 monoclonal antibody under clinical development, which efficiently neutralizes IL23p19, a subunit of IL-23, to abrogate IL-23 binding to its receptor and block downstream signal transducer and activator of transcription 3 (STAT3) phosphorylation. Specifically, IBI112 blocked IL-23 induced downstream IL-17 production from splenocytes. In addition, IBI112 administration reduced skin thickness in a psoriasis-like epidermal hyperplasia mouse model challenged by continuous hIL-23 injection. IBI112 showed synergism with an anti-IL-1R antibody in controlling disease progression in an imiquimod (IMQ) -induced psoriasis model. Moreover, with mutations in Fc fragment of IBI112, extended half-life was observed when compared to the wild-type IgG1 version in both human-FcRn-knock-in mice and cynomolgus monkeys. IBI112 was well tolerated after high dose administration in cynomolgus monkeys. In summary, we have developed an extended half-life, anti-IL-23p19 monoclonal antibody, IBI112, which efficiently neutralized IL-23, blocked IL-23-induced IL-17 production, and alleviated disease symptoms in two mouse models of psoriasis.
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Affiliation(s)
- Li Li
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Zhihai Wu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Min Wu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Xuan Qiu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Yue Wu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Zhihui Kuang
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Li Wang
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Ta Sun
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Yang Liu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Shuai Yi
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Hua Jing
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Shuaixiang Zhou
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Bingliang Chen
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Dongdong Wu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China
| | - Weiwei Wu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China.
| | - Junjian Liu
- Innovent Biologics (Suzhou) Co., Ltd, 168 Dongping Street, Suzhou Industrial Park, Suzhou 215123, Jiangsu, China.
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Zhang Q, Liao Y, Liu Z, Dai Y, Li Y, Li Y, Tang Y. Interleukin-17 and ischaemic stroke. Immunology 2020; 162:179-193. [PMID: 32935861 DOI: 10.1111/imm.13265] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/22/2020] [Accepted: 08/26/2020] [Indexed: 12/26/2022] Open
Abstract
Interleukin-17 (IL-17) is a cytokine family that includes 6 members, IL-17A through IL-17F, most of them are reported to have pro-inflammatory role. Through binding to their receptors (IL-17Rs), IL-17 activates the intracellular signalling pathways to play an important role in autoimmune diseases, including rheumatoid arthritis (RA) and multiple sclerosis (MS). Ischaemic stroke is a complex pathophysiological process mainly caused by regional cerebral ischaemia. Inflammatory factors contribute to the physiological process of stroke that leads to poor prognosis. IL-17 plays a crucial role in promoting inflammatory response and inducing secondary injury in post-stroke. Though immune cells and inflammatory factors have been reported to be involved in the damage of stroke, the functions of IL-17 in this process need to be elucidated. This review focuses on the pathological modulation and the mechanism of IL-17 family in ischaemic stroke and seeking to provide new insights for future therapies.
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Affiliation(s)
- Qiaohui Zhang
- Chinese Medical Institute, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Liao
- Chinese Medical Institute, Beijing University of Chinese Medicine, Beijing, China
| | - Zhenquan Liu
- School of Chinese Materia Medical, Beijing University of Chinese Medicine, Beijing, China
| | - Yajie Dai
- Chinese Medical Institute, Beijing University of Chinese Medicine, Beijing, China
| | - Yunxin Li
- Chinese Medical Institute, Beijing University of Chinese Medicine, Beijing, China
| | - Yue Li
- School of Chinese Materia Medical, Beijing University of Chinese Medicine, Beijing, China
| | - Yibo Tang
- Chinese Medical Institute, Beijing University of Chinese Medicine, Beijing, China
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IL-12 and IL-23-Close Relatives with Structural Homologies but Distinct Immunological Functions. Cells 2020; 9:cells9102184. [PMID: 32998371 PMCID: PMC7600943 DOI: 10.3390/cells9102184] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 12/21/2022] Open
Abstract
Cytokines of the IL-12 family show structural similarities but have distinct functions in the immune system. Prominent members of this cytokine family are the pro-inflammatory cytokines IL-12 and IL-23. These two cytokines share cytokine subunits and receptor chains but have different functions in autoimmune diseases, cancer and infections. Accordingly, structural knowledge about receptor complex formation is essential for the development of new therapeutic strategies preventing and/or inhibiting cytokine:receptor interaction. In addition, intracellular signaling cascades can be targeted to inhibit cytokine-mediated effects. Single nucleotide polymorphisms can lead to alteration in the amino acid sequence and thereby influencing protein functions or protein–protein interactions. To understand the biology of IL-12 and IL-23 and to establish efficient targeting strategies structural knowledge about cytokines and respective receptors is crucial. A highly efficient therapy might be a combination of different drugs targeting extracellular cytokine:receptor assembly and intracellular signaling pathways.
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Pastor-Fernández G, Mariblanca IR, Navarro MN. Decoding IL-23 Signaling Cascade for New Therapeutic Opportunities. Cells 2020; 9:cells9092044. [PMID: 32906785 PMCID: PMC7563346 DOI: 10.3390/cells9092044] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/24/2020] [Accepted: 09/04/2020] [Indexed: 02/06/2023] Open
Abstract
The interleukin 23 (IL-23) is a key pro-inflammatory cytokine in the development of chronic inflammatory diseases, such as psoriasis, inflammatory bowel diseases, multiple sclerosis, or rheumatoid arthritis. The pathological consequences of excessive IL-23 signaling have been linked to its ability to promote the production of inflammatory mediators, such as IL-17, IL-22, granulocyte-macrophage colony-stimulating (GM-CSF), or the tumor necrosis factor (TNFα) by target populations, mainly Th17 and IL-17-secreting TCRγδ cells (Tγδ17). Due to their pivotal role in inflammatory diseases, IL-23 and its downstream effector molecules have emerged as attractive therapeutic targets, leading to the development of neutralizing antibodies against IL-23 and IL-17 that have shown efficacy in different inflammatory diseases. Despite the success of monoclonal antibodies, there are patients that show no response or partial response to these treatments. Thus, effective therapies for inflammatory diseases may require the combination of multiple immune-modulatory drugs to prevent disease progression and to improve quality of life. Alternative strategies aimed at inhibiting intracellular signaling cascades using small molecule inhibitors or interfering peptides have not been fully exploited in the context of IL-23-mediated diseases. In this review, we discuss the current knowledge about proximal signaling events triggered by IL-23 upon binding to its membrane receptor to bring to the spotlight new opportunities for therapeutic intervention in IL-23-mediated pathologies.
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Cai Y, Xue F, Qin H, Chen X, Liu N, Fleming C, Hu X, Zhang HG, Chen F, Zheng J, Yan J. Differential Roles of the mTOR-STAT3 Signaling in Dermal γδ T Cell Effector Function in Skin Inflammation. Cell Rep 2020; 27:3034-3048.e5. [PMID: 31167146 PMCID: PMC6617524 DOI: 10.1016/j.celrep.2019.05.019] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/04/2019] [Accepted: 05/02/2019] [Indexed: 02/06/2023] Open
Abstract
Dermal γδT cells play critical roles in skin homeostasis and inflammation. However, the underlying molecular mechanisms by which these cells are activated have not been fully understood. Here, we show that the mechanistic or mammalian target of rapamycin (mTOR) and STAT3 pathways are activated in dermal γδT cells in response to innate stimuli such as interleukin-1β (IL-1β) and IL-23. Although both mTOR complex 1 (mTORC1) and mTORC2 are essential for dermal γδT cell proliferation, mTORC2 deficiency leads to decreased dermal γδT17 cells. It appears that mitochondria-mediated oxidative phosphorylation is critical in this process. Notably, although the STAT3 pathway is critical for dermal Vγ4T17 effector function, it is not required for γδ6T17 cells. Transcription factor IRF-4 activation promotes dermal γδT cell IL-17 production by linking IL-1β and IL-23 signaling. The absence of mTORC2 in dermal γδT cells, but not STAT3, ameliorates skin inflammation. Taken together, our results demonstrate that the mTOR-STAT3 signaling differentially regulates dermal γδT cell effector function in skin inflammation. Cai et al. demonstrate that the mTOR and STAT3 signaling pathways differentially regulate dermal Vγ4 and Vγ6 T cell effector function, leading to distinct outcomes in skin inflammation.
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Affiliation(s)
- Yihua Cai
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Feng Xue
- Department of Dermatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Hui Qin
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA; Department of Dermatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Xu Chen
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA; Department of Laboratory Medicine, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Na Liu
- Department of Dermatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Chris Fleming
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Xiaoling Hu
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Huang-Ge Zhang
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Fuxiang Chen
- Department of Laboratory Medicine, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Jie Zheng
- Department of Dermatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Jun Yan
- Department of Medicine and Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA.
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Meng X, Tang GY, Zhao CN, Liu Q, Xu XY, Cao SY. Hepatoprotective effects of Hovenia dulcis seeds against alcoholic liver injury and related mechanisms investigated via network pharmacology. World J Gastroenterol 2020; 26:3432-3446. [PMID: 32655267 PMCID: PMC7327782 DOI: 10.3748/wjg.v26.i24.3432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/24/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Alcoholic liver disease (ALD) is a worldwide health problem, and natural products have been shown to improve ALD due to their antioxidant activities. Some parts of Hovenia dulcis (H. dulcis), such as roots, peduncles, and stems, provide health benefits. Nevertheless, the effects and mechanisms of H. dulcis seeds on ALD have not yet been fully elucidated.
AIM To determine H. dulcis antioxidant activity, evaluate its effects against ALD, and investigate the related mechanisms via network pharmacology.
METHODS The antioxidant activity of H. dulcis seed was determined by both ferric-reducing antioxidant power and trolox equivalent antioxidant capacity assays. The total phenolic and flavonoid contents were determined by Folin–Ciocalteu method and aluminum chloride colorimetry, respectively, and polysaccharide was determined by phenol-sulfuric acid method. The effects of H. dulcis seeds against alcoholic liver injury were investigated in mice with water extract pretreatment for 7 days followed by alcohol administration. Moreover, the mechanisms of action were explored with network pharmacology.
RESULTS The results showed that H. dulcis seeds possessed strong antioxidant activity (245.11 ± 10.17 μmol Fe2+/g by ferric-reducing antioxidant power and 284.35 ± 23.57 μmol TE/g by trolox equivalent antioxidant capacity) and contained remarkable phenols and flavonoids, as well as a few polysaccharides. H. dulcis seeds attenuated alcohol-induced oxidative liver injury, showing reduced serum alanine and aspartate aminotransferases, alkaline phosphatase, and triglyceride, elevated hepatic glutathione, increased activities of superoxide dismutase and catalase, and reduced malondialdehyde and hepatic triglyceride. The results of network pharmacology analysis indicated that kaempferol, stigmasterol, and naringenin were the main bioactive compounds in H. dulcis seeds and that modulation of oxidative stress, inflammation, gut-derived products, and apoptosis were underlying mechanisms of the protective effects of H. dulcis seeds on ALD.
CONCLUSION The results of this study demonstrate that H. dulcis seeds could be a good natural antioxidant source with protective effects on oxidative diseases such as ALD.
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Affiliation(s)
- Xiao Meng
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Guo-Yi Tang
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Cai-Ning Zhao
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Qing Liu
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Xiao-Yu Xu
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Shi-Yu Cao
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
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Th17/IL-17 Axis Regulated by Airway Microbes Get Involved in the Development of Asthma. Curr Allergy Asthma Rep 2020; 20:11. [PMID: 32172346 DOI: 10.1007/s11882-020-00903-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Bronchial asthma is a common respiratory disease induced by immune imbalance, characterized by chronic non-specific airway inflammation and airway hyperresponsiveness (AHR). Many factors induce asthma, among which respiratory infection is the important cause. In this review, we discuss how respiratory microbes participate in the occurrence and progression of asthma via Th17/IL-17 axis. RECENT FINDINGS Pathogenesis of asthma has been considered as closely related to the imbalance in number and function of Th1/Th2 in the CD4+ T lymphocyte subsets. Recent studies have shown that Th17 cell and its secretory IL-17 also play an important role in AHR. Respiratory virus, bacteria, fungi, and other respiratory microbial infections can directly or indirectly induce the differentiation of Th17 cell and the production of related cytokines to induce AHR. Respiratory microbial infection can affect the TH17/IL-17A axis through a variety of mechanisms, thereby promoting the occurrence and development of asthma, and these specific mechanisms may provide new effective therapeutic ideas for asthma.
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Feng S, Zhou H, Wang Y, Qiu X, Zhang A, Wang X. Novel functions of grass carp three p40 isoforms as modulators of Th17 signature cytokine expression in head kidney leukocytes. FISH & SHELLFISH IMMUNOLOGY 2020; 98:995-1000. [PMID: 31734285 DOI: 10.1016/j.fsi.2019.11.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 11/07/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Interleukin (IL)-12p40, a component of IL-12 and IL-23, can be secreted as monomer and homodimer in mammals. Our previous study has proved the existence of natural three p40 isoforms and their proinflammatory properties in grass carp. In the present study, we unexpectedly found that recombinant grass carp p40a/b/c (rgcp40a, rgcp40b and rgcp40c) were able to enhance the mRNA levels of grass carp il-17a/f1 (gcil-17a/f1) in a dose- and time-dependent manner in head kidney leukocytes (HKLs). In agreement with these findings, the enzyme-linked immunosorbent assay (ELISA) showed that rgcp40a, rgcp40b and rgcp40c markedly stimulated gcIl-17a/f1 secretion from the HKLs. Together with their stimulatory effects on grass carp gcil-22 and gcil-26 expression, our data suggested their potential to mediate Th17-like response in grass carp. To support this notion, we investigated the underlying mechanisms for the regulation of rgcp40 isoforms on gcil-17a/f1 expression, and found that three rgcp40 isoforms significantly induced the activation of Erk, Jnk and Stat3 pathways in a time-dependent oscillation in the same cell model. Moreover, three rgcp40 isoforms-induced gcil-17a/f1 mRNA expression was suppressed by the inhibition on Erk, Jnk and Stat3 pathways, suggesting the signaling pathways in the p40 isoforms-mediating il-17a/f1 transcription. These studies for the first time proved the involvement of three gcp40 isoforms in mediating Th17 signature cytokine expression in fish immune cells, therefore providing new insights into the roles of p40 in teleost immunity.
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Affiliation(s)
- Shiyu Feng
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Hong Zhou
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
| | - Yanyan Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Xingyang Qiu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Anying Zhang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
| | - Xinyan Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
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Xu J, Wu L, Yu P, Sun Y, Lu Y. Effect of T. spiralis Serine protease inhibitors on TNBS-induced experimental colitis mediated by Macrophages. Sci Rep 2020; 10:3147. [PMID: 32081954 PMCID: PMC7035329 DOI: 10.1038/s41598-020-60155-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 02/06/2020] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is an autoimmune disease with increasing incidence rate, and divided into ulcerative colitis (UC) and Crohn’s disease (CD). And more and more experimental evidence supports that immune disorder is important in the pathogenesis of IBD. Our previous experiments have confirmed that TsKaSPI and TsAdSPI recombinant proteins could relieve TNBS (2,4,6-Trinitrobenzenesulfonic acid solution)-induced colitis. Therefore, we speculate that macrophages play a certain role in the process of recombinant protein relieving colitis. In this experiment, 96 male BALB/c mice aged 6–8 weeks were randomly divided into two groups: the prevention group and the therapy group. Changes of the ratio of M1/M2 phenotypic macrophages in spleens and MLNs, key factors in the IL-33/ST2 and IL-6/JAK2/STAT3 signaling pathway were detected. The purpose is to analyze the specific role played by macrophages and their secreted cytokines in the immunomodulation of colitis by Trichinella spiralis (T. spiralis) Serine protease inhibitors. The results showed that the percentage of M1 phenotypic macrophages was decreased and M2 phenotypic macrophages was increased in the TsKaSPI + TNBS, TsAdSPI + TNBS group compared with the PBS + TNBS group in the prevention group. Meanwhile, the expression of IL-33 and ST2 were significantly decreased. The key factors of IL-6/JAK2/STAT3 signaling pathway were all significantly increased. In addition, in the therapy group, we found similar results. This experiment demonstrated that macrophages have a certain impact during this process of recombinant protein relieving mouse CD model.
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Affiliation(s)
- Jingyun Xu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Lijia Wu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Pengcheng Yu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Yichun Sun
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Yixin Lu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China.
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Louhaichi S, Mlika M, Hamdi B, Hamzaoui K, Hamzaoui A. Sputum IL-26 Is Overexpressed in Severe Asthma and Induces Proinflammatory Cytokine Production and Th17 Cell Generation: A Case-Control Study of Women. J Asthma Allergy 2020; 13:95-107. [PMID: 32099415 PMCID: PMC7006858 DOI: 10.2147/jaa.s229522] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 01/12/2020] [Indexed: 12/16/2022] Open
Abstract
Objective Asthma inflammation is a complex pathway involving numerous mediators. Interleukin-26 (IL-26), a member of the IL-10 cytokine family, is abundant in human airways and induces the production of proinflammatory cytokines. Our aim was to investigate the possible role of IL-26 in severe asthma. We analysed the expression of IL-26 in severe asthma both in peripheral blood and induced sputum. Patients and Methods A total of 50 adult women with severe asthma were recruited and compared to 30 healthy controls (HC). Serum and sputum fluid (SF) levels of IL-26 and IL-17 were defined by ELISA. IL-26 mRNA expression and IL-26 protein were analysed using RT-PCR and Western blot. In vitro, we studied the effect of recombinant IL-26 (rIL-26) and SF-IL-26 on cultured CD4+ T cells and monocytes, comparing patients and controls. Results Concentrations of IL-26 are higher in serum and induced sputum of asthmatic patients than in HC. Moreover, IL-26 protein and mRNA expression were significantly elevated in asthma sputum cells compared to PBMCs. We observed a positive correlation between body mass index (BMI) and sputum fluid IL-26, while the correlation between IL-26 and lung function tests (FEV1% and FEV1/FVC ratio) was negative. IL-17A was highly expressed in SF and correlated positively with IL-26. In patients’ sputum IL-26 and IL-17A were significantly associated with neutrophils. Stimulation of cultured CD4+ T cells with monocytes by recombinant IL-26 promoted the generation of RORγt+ Th17+ cells inducing the production of IL-17A, IL-1β, IL-6 and TNF-α cytokines. IL-26 expressed in SF was biologically active and induced IL-17 secretion in the presence of IL-1β and IL-6 cytokines. Conclusion These findings show that IL-26 is highly produced in asthmatic sputum, induces pro-inflammatory cytokine secretion by monocytes/macrophages, and favours Th17 cell generation. IL-26 thereby appears as a novel pro-inflammatory cytokine, produced locally in the airways that may constitute a promising target to treat asthma inflammatory process.
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Affiliation(s)
- Sabrine Louhaichi
- Research Laboratory 19SP02 "Chronic Pulmonary Pathologies: From Genome to Management", Abderrahman Mami Hospital, Ariana, Tunisia.,Medicine Faculty of Tunis, Department of Basic Sciences, Tunis El Manar University, Tunis, Tunisia.,Department of Paediatric and Respiratory Diseases, Abderrahman Mami Hospital, Pavillon B, Ariana, Tunisia
| | - Mona Mlika
- Medicine Faculty of Tunis, Department of Basic Sciences, Tunis El Manar University, Tunis, Tunisia.,Pathology Department, Abderrahman Mami Hospital, Ariana, Tunisia
| | - Besma Hamdi
- Research Laboratory 19SP02 "Chronic Pulmonary Pathologies: From Genome to Management", Abderrahman Mami Hospital, Ariana, Tunisia.,Medicine Faculty of Tunis, Department of Basic Sciences, Tunis El Manar University, Tunis, Tunisia.,Department of Paediatric and Respiratory Diseases, Abderrahman Mami Hospital, Pavillon B, Ariana, Tunisia
| | - Kamel Hamzaoui
- Research Laboratory 19SP02 "Chronic Pulmonary Pathologies: From Genome to Management", Abderrahman Mami Hospital, Ariana, Tunisia.,Medicine Faculty of Tunis, Department of Basic Sciences, Tunis El Manar University, Tunis, Tunisia
| | - Agnès Hamzaoui
- Research Laboratory 19SP02 "Chronic Pulmonary Pathologies: From Genome to Management", Abderrahman Mami Hospital, Ariana, Tunisia.,Medicine Faculty of Tunis, Department of Basic Sciences, Tunis El Manar University, Tunis, Tunisia.,Department of Paediatric and Respiratory Diseases, Abderrahman Mami Hospital, Pavillon B, Ariana, Tunisia
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46
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Cibrian D, Castillo-González R, Fernández-Gallego N, de la Fuente H, Jorge I, Saiz ML, Punzón C, Ramírez-Huesca M, Vicente-Manzanares M, Fresno M, Daudén E, Fraga-Fernandez J, Vazquez J, Aragonés J, Sánchez-Madrid F. Targeting L-type amino acid transporter 1 in innate and adaptive T cells efficiently controls skin inflammation. J Allergy Clin Immunol 2019; 145:199-214.e11. [PMID: 31605740 DOI: 10.1016/j.jaci.2019.09.025] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 09/09/2019] [Accepted: 09/16/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Psoriasis is a frequent inflammatory skin disease that is mainly mediated by IL-23, IL-1β, and IL-17 cytokines. Although psoriasis is a hyperproliferative skin disorder, the possible role of amino acid transporters has remained unexplored. OBJECTIVE We sought to investigate the role of the essential amino acid transporter L-type amino acid transporter (LAT) 1 (SLC7A5) in psoriasis. METHODS LAT1 floxed mice were crossed to Cre-expressing mouse strains under the control of keratin 5, CD4, and retinoic acid receptor-related orphan receptor γ. We produced models of skin inflammation induced by imiquimod (IMQ) and IL-23 and tested the effect of inhibiting LAT1 (JPH203) and mammalian target of rapamycin (mTOR [rapamycin]). RESULTS LAT1 expression is increased in keratinocytes and skin-infiltrating lymphocytes of psoriatic lesions in human subjects and mice. LAT1 deletion in keratinocytes does not dampen the inflammatory response or their proliferation, which could be maintained by increased expression of the alternative amino acid transporters LAT2 and LAT3. Specific deletion of LAT1 in γδ and CD4 T cells controls the inflammatory response induced by IMQ. LAT1 deletion or inhibition blocks expansion of IL-17-secreting γ4+δ4+ and CD4 T cells and dampens the release of IL-1β, IL-17, and IL-22 in the IMQ-induced model. Moreover, inhibition of LAT1 blocks expansion of human γδ T cells and IL-17 secretion by human CD4 T cells. IL-23 and IL-1β stimulation upregulates LAT1 expression and induces mTOR activation in IL-17+ γδ and TH17 cells. Deletion or inhibition of LAT1 efficiently controls IL-23- and IL-1β-induced phosphatidylinositol 3-kinase/AKT/mTOR activation independent of T-cell receptor signaling. CONCLUSION Targeting LAT1-mediated amino acid uptake is a potentially useful immunosuppressive strategy to control skin inflammation mediated by the IL-23/IL-1β/IL-17 axis.
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Affiliation(s)
- Danay Cibrian
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain
| | - Raquel Castillo-González
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Nieves Fernández-Gallego
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Hortensia de la Fuente
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain
| | - Inmaculada Jorge
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain
| | - María Laura Saiz
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Carmen Punzón
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | | | - Miguel Vicente-Manzanares
- Centro de Investigación del Cáncer-Instituto de Biología Molecular y Celular del Cáncer, CIC-IBMCC (CSIC-Universidad de Salamanca), Salamanca, Spain
| | - Manuel Fresno
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Esteban Daudén
- Dermatology Service, Hospital de la Princesa, Madrid, Spain
| | | | - Jesús Vazquez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain
| | - Julián Aragonés
- CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain; Reasearch Unit, Hospital de La Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid, Madrid, Spain
| | - Francisco Sánchez-Madrid
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid (UAM), Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain.
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47
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Abdel-Maged AE, Gad AM, Wahdan SA, Azab SS. Efficacy and safety of Ramucirumab and methotrexate co-therapy in rheumatoid arthritis experimental model: Involvement of angiogenic and immunomodulatory signaling. Toxicol Appl Pharmacol 2019; 380:114702. [PMID: 31398424 DOI: 10.1016/j.taap.2019.114702] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 05/23/2019] [Accepted: 08/05/2019] [Indexed: 02/08/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic and progressive autoimmune inflammatory disease associated with irreversible joint destruction that leads to permanent motor disability and compromised quality of life. However, the main cause of RA is still unknown though stimulation of immune system and cells plays pivotal role in disease development and progression. Ramucirumab (RAM) is the monoclonal antibody against VEGF- receptor. This study aimed to investigate and evaluate the therapeutic effect of RAM with or without Methotrexate (MTX) against adjuvant-induced arthritis in rats. Complete Freund's adjuvant (CFA)-induced arthritic rats were treated for three consecutive weeks with MTX or RAM alone and MTX-RAM co-therapy. Arthritic score, gait score, ankle diameter, paw thickness, angiogenic, inflammatory cytokines, bone erosion markers, and apoptotic markers were assessed to evaluate the anti-arthritic effect. RAM monotherapy exhibited anti-inflammatory, anti-angiogenic and anti-apoptotic effects similar to MTX alone to treat RA in the current study. Furthermore, RAM alone had a protective effect on bone and cartilage health better than standard anti-rheumatic agent MTX. Interestingly, combined therapy of MTX and RAM produced significant differences in comparison with MTX or RAM monotherapy in all tested parameters. Moreover, the current study proved that MTX-RAM co-therapy has a synergistic effect.
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MESH Headings
- Animals
- Ankle Joint/drug effects
- Ankle Joint/pathology
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antirheumatic Agents/pharmacology
- Antirheumatic Agents/therapeutic use
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/genetics
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- Drug Therapy, Combination
- Foot/pathology
- Gene Expression/drug effects
- Immunomodulation
- Interleukin-17/genetics
- Male
- Methotrexate/pharmacology
- Methotrexate/therapeutic use
- Neovascularization, Physiologic
- Rats
- STAT3 Transcription Factor/genetics
- Treatment Outcome
- Tumor Necrosis Factor-alpha/blood
- Vascular Endothelial Growth Factor A/blood
- Ramucirumab
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Affiliation(s)
- Amany E Abdel-Maged
- National Organization for Research and Control of Biologicals (NORCB), Cairo, Egypt
| | - Amany M Gad
- Department of Pharmacology, National Organization for Drug Control and Research (NODCAR), Cairo, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Samar S Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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48
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Flores RR, Carbo L, Kim E, Van Meter M, De Padilla CML, Zhao J, Colangelo D, Yousefzadeh MJ, Angelini LA, Zhang L, Pola E, Vo N, Evans CH, Gambotto A, Niedernhofer LJ, Robbins PD. Adenoviral gene transfer of a single-chain IL-23 induces psoriatic arthritis-like symptoms in NOD mice. FASEB J 2019; 33:9505-9515. [PMID: 31170010 PMCID: PMC6662986 DOI: 10.1096/fj.201900420r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/23/2019] [Indexed: 01/08/2023]
Abstract
Previously, we demonstrated that intratumoral delivery of adenoviral vector encoding single-chain (sc)IL-23 (Ad.scIL-23) was able to induce systemic antitumor immunity. Here, we examined the role of IL-23 in diabetes in nonobese diabetic mice. Intravenous delivery of Ad.scIL-23 did not accelerate the onset of hyperglycemia but instead resulted in the development of psoriatic arthritis. Ad.scIL-23-treated mice developed erythema, scales, and thickening of the skin, as well as intervertebral disc degeneration and extensive synovial hypertrophy and loss of articular cartilage in the knees. Immunological analysis revealed activation of conventional T helper type 17 cells and IL-17-producing γδ T cells along with a significant depletion and suppression of T cells in the pancreatic lymph nodes. Furthermore, treatment with anti-IL-17 antibody reduced joint and skin psoriatic arthritis pathologies. Thus, these Ad.scIL-23-treated mice represent a physiologically relevant model of psoriatic arthritis for understanding disease progression and for testing therapeutic approaches.-Flores, R. R., Carbo, L., Kim, E., Van Meter, M., De Padilla, C. M. L., Zhao, J., Colangelo, D., Yousefzadeh, M. J., Angelini, L. A., Zhang, L., Pola, E., Vo, N., Evans, C. H., Gambotto, A., Niedernhofer, L. J., Robbins, P. D. Adenoviral gene transfer of a single-chain IL-23 induces psoriatic arthritis-like symptoms in NOD mice.
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Affiliation(s)
- Rafael R. Flores
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Lana Carbo
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Eun Kim
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Montina Van Meter
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | | | - Jing Zhao
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Debora Colangelo
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Orthopaedic Surgery, Catholic University of Rome School of Medicine, Agostino Gemelli University Hospital, Rome, Italy
| | - Matthew J. Yousefzadeh
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Luise A. Angelini
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Lei Zhang
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
| | - Enrico Pola
- Department of Orthopaedic Surgery, Catholic University of Rome School of Medicine, Agostino Gemelli University Hospital, Rome, Italy
| | - Nam Vo
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | | | - Andrea Gambotto
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Laura J. Niedernhofer
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
| | - Paul D. Robbins
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
- Center on Aging, The Scripps Research Institute, Jupiter, Florida, USA
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Simone D, Al Mossawi MH, Bowness P. Progress in our understanding of the pathogenesis of ankylosing spondylitis. Rheumatology (Oxford) 2019; 57:vi4-vi9. [PMID: 30445483 PMCID: PMC6238220 DOI: 10.1093/rheumatology/key001] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Indexed: 12/31/2022] Open
Abstract
AS is a common rheumatic condition characterized by inflammation and new bone formation. The pathogenesis of AS is likely multifactorial and has not been fully elucidated to date. A major genetic role has been demonstrated. The strongest genetic association is with HLA B27. Numerous other associated genetic polymorphisms have been identified, including those affecting the type 17 immune pathway, although the precise link between genetics and pathogenesis remains unexplained. Several immunological alterations, together with recent therapeutic advances, support a central role for IL-23- and IL-17-producing immune cells in disease pathogenesis. Recently, perturbations of gut microbiota of AS patients have further catalysed research and offer potential for future therapeutic intervention. In this review we outline the genetic basis of AS and describe the current hypotheses for disease pathogenesis. We synthesize recent experimental research data and clinical studies to support a central role for the type 17/23 immune axis in AS.
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Affiliation(s)
- Davide Simone
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - M Hussein Al Mossawi
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Paul Bowness
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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50
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Interleukine-17 Administration Modulates Adult Hippocampal Neurogenesis and Improves Spatial Learning in Mice. J Mol Neurosci 2019; 69:254-263. [PMID: 31254254 DOI: 10.1007/s12031-019-01354-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/29/2019] [Indexed: 01/17/2023]
Abstract
Adult hippocampal neurogenesis plays an important role in health and disease. Regulating neurogenesis may be a key mechanism in the pathophysiology and treatment of several neurobehavioral disorders such as schizophrenia, depression, autism spectrum disorders and Alzheimer's disease. Cytokines are known to affect adult neurogenesis, but conflicting studies have been reported with regard to their actual role. Interleukine-17 (IL-17), a potent pro-inflammatory cytokine, has been shown to inhibit proliferation of neuroprogenitors and thus reduce hippocampal neurogenesis, while other studies suggested it can promote neurite outgrowth. In the present study we sought to explore the possible effect of a single dose administration of IL-17 on neurogenesis related behavior, i.e. spatial learning. Surprisingly, ICR mice injected with IL-17 (8 μg) had a significant slight improvement in spatial learning in the Morris water maze paradigm, without any changes in general locomotion compared with control mice. Indeed, the expression of neurogenesis related genes was down regulated following IL-17 treatment. However, we detected an upregulation in the expression of FGF-13, a gene promoting microtubule polymerization and neurite outgrowth, thus supporting neuronal maturation. We thus suggest that IL-17 has a complex role in regulating adult neurogenesis: inhibiting neuroprogenitors proliferation on one hand, while promoting maturation of already formed neuroblasts on the other hand. Our findings suggest that these roles can potentially affect neurogenesis related behavior. Its actual role in health and disease is yet to be determined.
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