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Emerging Role for MAIT Cells in Control of Antimicrobial Resistance. Trends Microbiol 2020; 29:504-516. [PMID: 33353796 DOI: 10.1016/j.tim.2020.11.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022]
Abstract
Antimicrobial resistance is a serious threat to global public health as antibiotics are losing effectiveness due to rapid development of resistance. The human immune system facilitates control and clearance of resistant bacterial populations during the course of antimicrobial therapy. Here we review current knowledge of mucosa-associated invariant T (MAIT) cells, an arm of the immune system on the border between innate and adaptive, and their critical place in human antibacterial immunity. We propose that MAIT cells play important roles against antimicrobial-resistant infections through their capacity to directly clear multidrug-resistant bacteria and overcome mechanisms of antimicrobial resistance. Finally, we discuss outstanding questions pertinent to the possible advancement of host-directed therapy as an alternative intervention strategy for antimicrobial-resistant bacterial infections.
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Yi FS, Zhai K, Shi HZ. Helper T cells in malignant pleural effusion. Cancer Lett 2020; 500:21-28. [PMID: 33309856 DOI: 10.1016/j.canlet.2020.12.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022]
Abstract
Malignant pleural effusion (MPE) is a frequent complication of malignancies and poses a clinical problem. CD4+ T lymphocytes are the most frequent cell population in MPE. Traditionally, CD4+ T cells are classified into two subsets based on cytokine production profiles, type 1 (Th1) and type 2 (Th2) helper T cells, which exhibit distinct functions. Recently, other T-cell subsets have been added to the Th-cell "portfolio", including regulatory T, Th17, Th9, and Th22 cells. The current review focuses on summarizing the Th-cell phenotypic characteristics, mechanism of Th-cell differentiation, and their pleural space recruitment, based on recent research. We also describe the interplay in MPE among different Th cells, as well as Th cells and lung cancer cells or mesothelial cells. Future research should expand the landscape map of human MPE immune cells, explore the immuno-regulation of B cells, and investigate the communication between macrophages and Th cells in MPE, which may facilitate meaningful advancements in the diagnoses and therapeutics of MPE.
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Affiliation(s)
- Feng-Shuang Yi
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Kan Zhai
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Huan-Zhong Shi
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
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Amini A, Pang D, Hackstein CP, Klenerman P. MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors. Front Immunol 2020; 11:584521. [PMID: 33329559 PMCID: PMC7734211 DOI: 10.3389/fimmu.2020.584521] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are innate-like T cells present at considerable frequencies in human blood and barrier tissues, armed with an expanding array of effector functions in response to homeostatic perturbations. Analogous to other barrier immune cells, their phenotype and function is driven by crosstalk with host and dynamic environmental factors, most pertinently the microbiome. Given their distribution, they must function in diverse extracellular milieus. Tissue-specific and adapted functions of barrier immune cells are shaped by transcriptional programs and regulated through a blend of local cellular, inflammatory, physiological, and metabolic mediators unique to each microenvironment. This review compares the phenotype and function of MAIT cells with other barrier immune cells, highlighting potential areas for future exploration. Appreciation of MAIT cell biology within tissues is crucial to understanding their niche in health and disease.
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Affiliation(s)
- Ali Amini
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Declan Pang
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Carl-Philipp Hackstein
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
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Che KF, Tengvall S, Lindén A. Interleukin-26 in host defense and inflammatory disorders of the airways. Cytokine Growth Factor Rev 2020; 57:1-10. [PMID: 33293237 DOI: 10.1016/j.cytogfr.2020.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 11/16/2022]
Abstract
The dimeric cytokine interleukin (IL)-26 belongs to the IL-10 family. Whereas it was originally perceived as a T-helper (Th)17 cytokine, subsequent studies have shown that IL-26 is produced by several populations of leukocytes and structural cells. This cytokine binds to a heterodimeric receptor complex including IL-10R2 and -20R1 (IL-26R) and signals through STAT 1 and 3 to induce the release of chemokines and growth factors. Remarkably, IL-26 directly kills bacteria and inhibits viral replication. The most recent studies on human airways confirm multiple cellular sources in this critical interphase of host defense and demonstrate that stimulation of toll-like receptors (TLR) trigger the release of IL-26. Once released, it exerts a dualistic effect on cytokine production and up-regulates gene expression of IL-26R. It also potentiates chemotaxis and inhibits chemokinesis for neutrophils, thereby facilitating the accumulation of innate effector cells at the site of bacterial stimulation. The high levels of IL-26 in human airways are altered in inflammatory airway disorders such as asthma and chronic obstructive pulmonary disease. Thus, IL-26 emerges as an important mediator, providing direct and indirect actions on microbes, actions that are essential for host defense and inflammation and bears potential as a biomarker of disease.
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Affiliation(s)
- Karlhans Fru Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SE-17177, Sweden.
| | - Sara Tengvall
- Närhälsan, Frölunda Vårdcentral, Gothenburg, SE-421 42, Sweden
| | - Anders Lindén
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SE-17177, Sweden; Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, SE-171 76, Sweden
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55
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Liu T, Li S, Ying S, Tang S, Ding Y, Li Y, Qiao J, Fang H. The IL-23/IL-17 Pathway in Inflammatory Skin Diseases: From Bench to Bedside. Front Immunol 2020; 11:594735. [PMID: 33281823 PMCID: PMC7705238 DOI: 10.3389/fimmu.2020.594735] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022] Open
Abstract
Interleukin-17 (IL-17) is an essential proinflammatory cytokine, which is mainly secreted by the CD4+ helper T cells (Th17 cells) and subsets of innate lymphoid cells. IL-17A is associated with the pathogenesis of inflammatory diseases, including psoriasis, atopic dermatitis, hidradenitis suppurativa, alopecia areata, pityriasis rubra pilaris, pemphigus, and systemic sclerosis. Interleukin-23 (IL-23) plays a pivotal role in stimulating the production of IL-17 by activating the Th17 cells. The IL-23/IL-17 axis is an important pathway for targeted therapy for inflammatory diseases. Emerging evidence from clinical trials has shown that monoclonal antibodies against IL-23, IL-17, and tumor necrosis factor are effective in the treatment of patients with psoriasis, atopic dermatitis, hidradenitis suppurativa, pityriasis rubra pilaris, pemphigus, and systemic sclerosis. Here, we summarize the latest knowledge about the biology, signaling, and pathophysiological functions of the IL-23/IL-17 axis in inflammatory skin diseases. The currently available biologics targeting the axis is also discussed.
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Affiliation(s)
- Taoming Liu
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng Li
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuni Ying
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shunli Tang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuwei Ding
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yali Li
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianjun Qiao
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hong Fang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Rojahn TB, Vorstandlechner V, Krausgruber T, Bauer WM, Alkon N, Bangert C, Thaler FM, Sadeghyar F, Fortelny N, Gernedl V, Rindler K, Elbe-Bürger A, Bock C, Mildner M, Brunner PM. Single-cell transcriptomics combined with interstitial fluid proteomics defines cell type-specific immune regulation in atopic dermatitis. J Allergy Clin Immunol 2020; 146:1056-1069. [PMID: 32344053 DOI: 10.1016/j.jaci.2020.03.041] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/10/2020] [Accepted: 03/27/2020] [Indexed: 02/09/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is the most common chronic inflammatory skin disease, but its complex pathogenesis is only insufficiently understood, resulting in still limited treatment options. OBJECTIVE We sought to characterize AD on both transcriptomic and proteomic levels in humans. METHODS We used skin suction blistering, a painless and nonscarring procedure that can simultaneously sample skin cells and interstitial fluid. We then compared results with conventional biopsies. RESULTS Suction blistering captured epidermal and most immune cells equally well as biopsies, except for mast cells and nonmigratory CD163+ macrophages that were only present in biopsy isolates. Using single-cell RNA sequencing, we found comparable transcriptional profiles of key inflammatory pathways between blister and biopsy AD, but suction blistering was superior in cell-specific resolution for high-abundance transcripts (KRT1/KRT10, KRT16/KRT6A, S100A8/S100A9), which showed some background signals in biopsy isolates. Compared with healthy controls, we found characteristic upregulation of AD-typical cytokines such as IL13 and IL22 in Th2 and Th22 cells, respectively, but we also discovered these mediators in proliferating T cells and natural killer T cells, that also expressed the antimicrobial cytokine IL26. Overall, not T cells, but myeloid cells were most strongly enriched in AD, and we found dendritic cell (CLEC7A, amphiregulin/AREG, EREG) and macrophage products (CCL13) among the top upregulated proteins in AD blister fluid proteomic analyses. CONCLUSION These data show that by using cutting-edge technology, suction blistering offers several advantages over conventional biopsies, including better transcriptomic resolution of skin cells, combined with proteomic information from interstitial fluid, unraveling novel inflammatory players that shape the cellular and proteomic microenvironment of AD.
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Affiliation(s)
- Thomas B Rojahn
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Vera Vorstandlechner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria; Department of Surgery, Research Laboratory for Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Thomas Krausgruber
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Wolfgang M Bauer
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Natalia Alkon
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Christine Bangert
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Felix M Thaler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Farzaneh Sadeghyar
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Nikolaus Fortelny
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Victoria Gernedl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Katharina Rindler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria; Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Patrick M Brunner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.
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Rainard P, Cunha P, Martins RP, Gilbert FB, Germon P, Foucras G. Type 3 immunity: a perspective for the defense of the mammary gland against infections. Vet Res 2020; 51:129. [PMID: 33059767 PMCID: PMC7559147 DOI: 10.1186/s13567-020-00852-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 09/22/2020] [Indexed: 12/23/2022] Open
Abstract
Type 3 immunity encompasses innate and adaptive immune responses mediated by cells that produce the signature cytokines IL-17A and IL-17F. This class of effector immunity is particularly adept at controlling infections by pyogenic extracellular bacteria at epithelial barriers. Since mastitis results from infections by bacteria such as streptococci, staphylococci and coliform bacteria that cause neutrophilic inflammation, type 3 immunity can be expected to be mobilized at the mammary gland. In effect, the main defenses of this organ are provided by epithelial cells and neutrophils, which are the main terminal effectors of type 3 immunity. In addition to theoretical grounds, there is observational and experimental evidence that supports a role for type 3 immunity in the mammary gland, such as the production of IL-17A, IL-17F, and IL-22 in milk and mammary tissue during infection, although their respective sources remain to be fully identified. Moreover, mouse mastitis models have shown a positive effect of IL-17A on the course of mastitis. A lot remains to be uncovered before we can safely harness type 3 immunity to reinforce mammary gland defenses through innate immune training or vaccination. However, this is a promising way to find new means of improving mammary gland defenses against infection.
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Affiliation(s)
- Pascal Rainard
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France.
| | - Patricia Cunha
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France
| | | | | | - Pierre Germon
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France
| | - Gilles Foucras
- IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
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58
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Interleukin-26 activates macrophages and facilitates killing of Mycobacterium tuberculosis. Sci Rep 2020; 10:17178. [PMID: 33057074 PMCID: PMC7558018 DOI: 10.1038/s41598-020-73989-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis-causing Mycobacterium tuberculosis (Mtb) is transmitted via airborne droplets followed by a primary infection of macrophages and dendritic cells. During the activation of host defence mechanisms also neutrophils and T helper 1 (TH1) and TH17 cells are recruited to the site of infection. The TH17 cell-derived interleukin (IL)-17 in turn induces the cathelicidin LL37 which shows direct antimycobacterial effects. Here, we investigated the role of IL-26, a TH1- and TH17-associated cytokine that exhibits antimicrobial activity. We found that both IL-26 mRNA and protein are strongly increased in tuberculous lymph nodes. Furthermore, IL-26 is able to directly kill Mtb and decrease the infection rate in macrophages. Binding of IL-26 to lipoarabinomannan might be one important mechanism in extracellular killing of Mtb. Macrophages and dendritic cells respond to IL-26 with secretion of tumor necrosis factor (TNF)-α and chemokines such as CCL20, CXCL2 and CXCL8. In dendritic cells but not in macrophages cytokine induction by IL-26 is partly mediated via Toll like receptor (TLR) 2. Taken together, IL-26 strengthens the defense against Mtb in two ways: firstly, directly due to its antimycobacterial properties and secondly indirectly by activating innate immune mechanisms.
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59
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Li B, Huang L, Lv P, Li X, Liu G, Chen Y, Wang Z, Qian X, Shen Y, Li Y, Fang W. The role of Th17 cells in psoriasis. Immunol Res 2020; 68:296-309. [PMID: 32827097 DOI: 10.1007/s12026-020-09149-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 08/12/2020] [Indexed: 12/20/2022]
Abstract
T helper 17 (Th17) cells have been involved in the pathogenesis of many autoimmune and inflammatory diseases, like psoriasis, multiple sclerosis (MS), rheumatoid arthritis (RA), and inflammatory bowel disease (IBD). However, the role of Th17 cells in psoriasis has not been clarified completely. Th17-derived proinflammatory cytokines including IL-17A, IL-17F, IL-21, IL-22, and IL-26 have a critical role in the pathogenesis of these disorders. In this review, we introduced the signaling and transcriptional regulation of Th17 cells. And then, we demonstrate the immunopathology role of Th17 cells and functions of the related cytokines in the psoriasis to get a better understanding of the inflammatory mechanisms mediated by Th17 cells in this disease.
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Affiliation(s)
- Binbin Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
- Chia Tai Tianqing Pharmaceutical Group Co. Ltd., No.1099, Fuying Road, Jiangning District, Nanjing, Jiangsu Province, 211122, People's Republic of China
| | - Liangliang Huang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Peng Lv
- Chia Tai Tianqing Pharmaceutical Group Co. Ltd., No.1099, Fuying Road, Jiangning District, Nanjing, Jiangsu Province, 211122, People's Republic of China
| | - Xiang Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Ge Liu
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Yan Chen
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Ziyu Wang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Xiaoxian Qian
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Yixiao Shen
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Yunman Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China.
| | - Weirong Fang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Mailbox 207, Tongjiaxiang 24, Nanjing, Jiangsu, 210009, People's Republic of China.
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60
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Wang D, Liu L, Augustino SMA, Duan T, Hall TJ, MacHugh DE, Dou J, Zhang Y, Wang Y, Yu Y. Identification of novel molecular markers of mastitis caused by Staphylococcus aureus using gene expression profiling in two consecutive generations of Chinese Holstein dairy cattle. J Anim Sci Biotechnol 2020; 11:98. [PMID: 32944235 PMCID: PMC7488426 DOI: 10.1186/s40104-020-00494-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/07/2020] [Indexed: 12/31/2022] Open
Abstract
Background Mastitis in dairy cows caused by Staphylococcus aureus is a major problem hindering economic growth in dairy farms worldwide. It is difficult to prevent or eliminate due to its asymptomatic nature and long persistence of infection. Although transcriptomic responses of bovine mammary gland cells to pathogens that cause mastitis have been studied, the common responses of peripheral blood leukocytes to S. aureus infection across two consecutive generations of dairy cattle have not been investigated. Methods In the current study, RNA-Seq was used to profile the transcriptomes of peripheral blood leukocytes sampled from S. aureus-infected mothers and their S. aureus-infected daughters, and also healthy non-infected mothers and their healthy daughters. Differential gene expression was evaluated as follows: 1) S. aureus-infected cows versus healthy non-infected cows (S vs. H, which include all the mothers and daughters), 2) S. aureus-infected mothers versus healthy non-infected mothers (SM vs. HM), and 3) S. aureus-infected daughters versus healthy non-infected daughters (SMD vs. HMD). Results Analysis of all identified expressed genes in the four groups (SM, SMD, HM, and HMD) showed that EPOR, IL9, IFNL3, CCL26, IL26 were exclusively expressed in both the HM and HMD groups, and that they were significantly (P < 0.05) enriched for the cytokine-cytokine receptor interaction pathway. A total of 17, 13 and 10 differentially expressed genes (DEGs) (FDR Padj. < 0.1 and |FC| > 1.2) were detected in the three comparisons, respectively. DEGs with P < 0.05 and |FC| > 2 were used for functional enrichment analyses. For the S vs. H comparison, DEGs detected included CCL20, IL13 and MMP3, which are associated with the IL-17 signaling pathway. In the SM vs. HM and SMD vs. HMD comparisons, five (BLA-DQB, C1R, C2, FCGR1A, and KRT10) and six (BLA-DQB, C3AR1, CFI, FCAR, FCGR3A, and LOC10498484) genes, respectively, were involved in the S. aureus infection pathway. Conclusions Our study provides insights into the transcriptomic responses of bovine peripheral blood leukocytes across two generations of cattle naturally infected with S. aureus. The genes highlighted in this study could serve as expression biomarkers for mastitis and may also contain sequence variation that can be used for genetic improvement of dairy cattle for resilience to mastitis.
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Affiliation(s)
- Di Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China.,UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8 Ireland
| | - Lei Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China.,Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120 China
| | - Serafino M A Augustino
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Tao Duan
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Thomas J Hall
- UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8 Ireland
| | - David E MacHugh
- UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8 Ireland.,UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, D04 V1W8 Ireland
| | - Jinhuan Dou
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Yi Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Yachun Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Ying Yu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
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61
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Corridoni D, Antanaviciute A, Gupta T, Fawkner-Corbett D, Aulicino A, Jagielowicz M, Parikh K, Repapi E, Taylor S, Ishikawa D, Hatano R, Yamada T, Xin W, Slawinski H, Bowden R, Napolitani G, Brain O, Morimoto C, Koohy H, Simmons A. Single-cell atlas of colonic CD8 + T cells in ulcerative colitis. Nat Med 2020; 26:1480-1490. [PMID: 32747828 DOI: 10.1038/s41591-020-1003-4] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 06/04/2020] [Indexed: 12/17/2022]
Abstract
Colonic antigen-experienced lymphocytes such as tissue-resident memory CD8+ T cells can respond rapidly to repeated antigen exposure. However, their cellular phenotypes and the mechanisms by which they drive immune regulation and inflammation remain unclear. Here we compiled an unbiased atlas of human colonic CD8+ T cells in health and ulcerative colitis (UC) using single-cell transcriptomics with T-cell receptor repertoire analysis and mass cytometry. We reveal extensive heterogeneity in CD8+ T-cell composition, including expanded effector and post-effector terminally differentiated CD8+ T cells. While UC-associated CD8+ effector T cells can trigger tissue destruction and produce tumor necrosis factor (TNF)-α, post-effector cells acquire innate signatures to adopt regulatory functions that may mitigate excessive inflammation. Thus, we identify colonic CD8+ T-cell phenotypes in health and UC, define their clonal relationships and characterize terminally differentiated dysfunctional UC CD8+ T cells expressing IL-26, which attenuate acute colitis in a humanized IL-26 transgenic mouse model.
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Affiliation(s)
- Daniele Corridoni
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Agne Antanaviciute
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- MRC WIMM Centre For Computational Biology, MRC WIMM, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Tarun Gupta
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - David Fawkner-Corbett
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Anna Aulicino
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Marta Jagielowicz
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kaushal Parikh
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Emmanouela Repapi
- Computational Biology Research Group, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Steve Taylor
- Computational Biology Research Group, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Dai Ishikawa
- Department of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan
| | - Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Juntendo University, Tokyo, Japan
| | - Taketo Yamada
- Department of Pathology, Saitama Medical University, Saitama, Japan
| | - Wei Xin
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Hubert Slawinski
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Rory Bowden
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Giorgio Napolitani
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Oliver Brain
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Juntendo University, Tokyo, Japan
| | - Hashem Koohy
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK.
- MRC WIMM Centre For Computational Biology, MRC WIMM, John Radcliffe Hospital, University of Oxford, Oxford, UK.
| | - Alison Simmons
- Medical Research Council (MRC) Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine (WIMM), John Radcliffe Hospital, University of Oxford, Oxford, UK.
- Translational Gastroenterology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK.
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Broux B, Zandee S, Gowing E, Charabati M, Lécuyer MA, Tastet O, Hachehouche L, Bourbonnière L, Ouimet JP, Lemaitre F, Larouche S, Cayrol R, Bouthillier A, Moumdjian R, Lahav B, Poirier J, Duquette P, Arbour N, Peelen E, Prat A. Interleukin-26, preferentially produced by T H17 lymphocytes, regulates CNS barrier function. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2020; 7:7/6/e870. [PMID: 32788322 PMCID: PMC7428369 DOI: 10.1212/nxi.0000000000000870] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/13/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To investigate the involvement of interleukin (IL)-26 in neuroinflammatory processes in multiple sclerosis (MS), in particular in blood-brain barrier (BBB) integrity. METHODS Expression of IL-26 was measured in serum, CSF, in vitro differentiated T helper (TH) cell subsets, and postmortem brain tissue of patients with MS and controls by ELISA, quantitative PCR, and immunohistochemistry. Primary human and mouse BBB endothelial cells (ECs) were treated with IL-26 in vitro and assessed for BBB integrity. RNA sequencing was performed on IL-26-treated human BBB ECs. Myelin oligodendrocyte glycoprotein35-55 experimental autoimmune encephalomyelitis (EAE) mice were injected IP with IL-26. BBB leakage and immune cell infiltration were assessed in the CNS of these mice using immunohistochemistry and flow cytometry. RESULTS IL-26 expression was induced in TH lymphocytes by TH17-inducing cytokines and was upregulated in the blood and CSF of patients with MS. CD4+IL-26+ T lymphocytes were found in perivascular infiltrates in MS brain lesions, and both receptor chains for IL-26 (IL-10R2 and IL-20R1) were detected on BBB ECs in vitro and in situ. In contrast to IL-17 and IL-22, IL-26 promoted integrity and reduced permeability of BBB ECs in vitro and in vivo. In EAE, IL-26 reduced disease severity and proinflammatory lymphocyte infiltration into the CNS, while increasing infiltration of Tregs. CONCLUSIONS Our study demonstrates that although IL-26 is preferentially expressed by TH17 lymphocytes, it promotes BBB integrity in vitro and in vivo and is protective in chronic EAE, highlighting the functional diversity of cytokines produced by TH17 lymphocytes.
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Affiliation(s)
- Bieke Broux
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Stephanie Zandee
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Elizabeth Gowing
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Marc Charabati
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Marc-André Lécuyer
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Olivier Tastet
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Lamia Hachehouche
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Lyne Bourbonnière
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Jean-Philippe Ouimet
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Florent Lemaitre
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Sandra Larouche
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Romain Cayrol
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Alain Bouthillier
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Robert Moumdjian
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Boaz Lahav
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Josée Poirier
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Pierre Duquette
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Nathalie Arbour
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Evelyn Peelen
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada
| | - Alexandre Prat
- From the Neuroimmunology Unit and Multiple Sclerosis Clinic (B.B., S.Z., E.G., M.C., M.-A.L., O.T., L.H., L.B., J.-P.O., F.L., S.L., R.C., B.L., J.P., P.D., N.A., E.P., A.P.), The Research Center of the Centre Hospitalier de l'Université de Montréal (CRCHUM), Department of Neuroscience, Faculty of Medicine, Université de Montréal, Canada; Hasselt University (B.B.), Biomedical Research Institute and Transnationale Universiteit Limburg, School of Life Sciences, Diepenbeek, Belgium; and Division of Neurosurgery (A.B., R.M.), Centre Hospitalier de l'Université de Montréal (CHUM), Faculty of Medicine, Université de Montréal, Canada.
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Lee EY, Srinivasan Y, de Anda J, Nicastro LK, Tükel Ç, Wong GCL. Functional Reciprocity of Amyloids and Antimicrobial Peptides: Rethinking the Role of Supramolecular Assembly in Host Defense, Immune Activation, and Inflammation. Front Immunol 2020; 11:1629. [PMID: 32849553 PMCID: PMC7412598 DOI: 10.3389/fimmu.2020.01629] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/17/2020] [Indexed: 12/15/2022] Open
Abstract
Pathological self-assembly is a concept that is classically associated with amyloids, such as amyloid-β (Aβ) in Alzheimer's disease and α-synuclein in Parkinson's disease. In prokaryotic organisms, amyloids are assembled extracellularly in a similar fashion to human amyloids. Pathogenicity of amyloids is attributed to their ability to transform into several distinct structural states that reflect their downstream biological consequences. While the oligomeric forms of amyloids are thought to be responsible for their cytotoxicity via membrane permeation, their fibrillar conformations are known to interact with the innate immune system to induce inflammation. Furthermore, both eukaryotic and prokaryotic amyloids can self-assemble into molecular chaperones to bind nucleic acids, enabling amplification of Toll-like receptor (TLR) signaling. Recent work has shown that antimicrobial peptides (AMPs) follow a strikingly similar paradigm. Previously, AMPs were thought of as peptides with the primary function of permeating microbial membranes. Consistent with this, many AMPs are facially amphiphilic and can facilitate membrane remodeling processes such as pore formation and fusion. We show that various AMPs and chemokines can also chaperone and organize immune ligands into amyloid-like ordered supramolecular structures that are geometrically optimized for binding to TLRs, thereby amplifying immune signaling. The ability of amphiphilic AMPs to self-assemble cooperatively into superhelical protofibrils that form structural scaffolds for the ordered presentation of immune ligands like DNA and dsRNA is central to inflammation. It is interesting to explore the notion that the assembly of AMP protofibrils may be analogous to that of amyloid aggregates. Coming full circle, recent work has suggested that Aβ and other amyloids also have AMP-like antimicrobial functions. The emerging perspective is one in which assembly affords a more finely calibrated system of recognition and response: the detection of single immune ligands, immune ligands bound to AMPs, and immune ligands spatially organized to varying degrees by AMPs, result in different immunologic outcomes. In this framework, not all ordered structures generated during multi-stepped AMP (or amyloid) assembly are pathological in origin. Supramolecular structures formed during this process serve as signatures to the innate immune system to orchestrate immune amplification in a proportional, situation-dependent manner.
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Affiliation(s)
- Ernest Y Lee
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States.,UCLA-Caltech Medical Scientist Training Program, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Yashes Srinivasan
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Jaime de Anda
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Lauren K Nicastro
- Department of Microbiology and Immunology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Çagla Tükel
- Department of Microbiology and Immunology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Gerard C L Wong
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, United States.,California Nano Systems Institute, University of California, Los Angeles, Los Angeles, CA, United States
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64
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Salhi M, Tizaoui K, Louhaichi S, Lahmar O, Hamzaoui K, Hamzaoui A. IL-26 gene variants and protein expression in Tunisian asthmatic patients. Cytokine 2020; 134:155206. [PMID: 32683104 DOI: 10.1016/j.cyto.2020.155206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 02/08/2023]
Abstract
The interleukin-26 (IL-26), a member of the IL-10 family is one of the latest discovered cytokines which contributes in numerous chronic autoimmune and inflammatory disorders. In the current case-control study, we investigated the distribution of three IL-26 single nucleotide polymorphisms (SNPs) (rs7134599, rs2870946 & rs1558744) in 440 Tunisian adults via Taqman genotyping assay. The presence of rs7134599 and rs1558744 polymorphisms considerably reduced the risk of developing asthma while the rs7134599 AA [OR = 0.40, CI: 0.23-0.70] and AG [OR = 0.50, CI (0.32-0.76)] genotypes protected against the asthma risk. The rs7134599 A allele was correlated with a lower risk of developing severe asthma (p < 0.001) while that of the rs2870946 CC genotype was associated with a higher risk of developing asthma in smoking patients (p < 0.001). In addition, we measured the IL-26 levels in the serum by an Enzyme-linked-Immunosorbent Assay (ELISA). During the analysis, we found that IL-26 serum levels were incredibly increased in asthmatic patients compared to the healthy controls. Our study revealed a significant association of IL-26 gene polymorphisms with asthma for the first time which can serve as biomarkers for asthma in the Tunisian population. The significant increase of IL-26 serum protein levels in asthma patients suggested a major role of IL-26 in asthma phenotypes.
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Affiliation(s)
- Mariem Salhi
- University of Tunis El Manar, Faculty of Medicine of Tunis, Department of Basic Sciences, Tunis, Tunisia; Abderrahman Mami Hospital, Department of Pediatric Respiratory Diseases, Unit Research 19SP02 "Exploration of the Deep Lung: From Gene to Management", Pavilion B, 2080 Ariana, Tunisia.
| | - Kalthoum Tizaoui
- Abderrahman Mami Hospital, Department of Pediatric Respiratory Diseases, Unit Research 19SP02 "Exploration of the Deep Lung: From Gene to Management", Pavilion B, 2080 Ariana, Tunisia
| | - Sabrine Louhaichi
- Abderrahman Mami Hospital, Department of Pediatric Respiratory Diseases, Unit Research 19SP02 "Exploration of the Deep Lung: From Gene to Management", Pavilion B, 2080 Ariana, Tunisia
| | - Oussama Lahmar
- University of Tunis El Manar, Faculty of Medicine of Tunis, Department of Basic Sciences, Tunis, Tunisia; Abderrahman Mami Hospital, Department of Pediatric Respiratory Diseases, Unit Research 19SP02 "Exploration of the Deep Lung: From Gene to Management", Pavilion B, 2080 Ariana, Tunisia
| | - Kamel Hamzaoui
- University of Tunis El Manar, Faculty of Medicine of Tunis, Department of Basic Sciences, Tunis, Tunisia
| | - Agnes Hamzaoui
- University of Tunis El Manar, Faculty of Medicine of Tunis, Department of Basic Sciences, Tunis, Tunisia; Abderrahman Mami Hospital, Department of Pediatric Respiratory Diseases, Unit Research 19SP02 "Exploration of the Deep Lung: From Gene to Management", Pavilion B, 2080 Ariana, Tunisia
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Hirsh J, Kositangool P, Shah A, Radwan Y, Padilla D, Barragan J, Cervantes J. IL-26 mediated human cell activation and antimicrobial activity against Borrelia burgdorferi. CURRENT RESEARCH IN MICROBIAL SCIENCES 2020; 1:30-36. [PMID: 34841299 PMCID: PMC8610320 DOI: 10.1016/j.crmicr.2020.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/31/2022] Open
Abstract
Lyme disease is an inflammatory disease caused by infection with Borrelia burgdorferi (Bb). Inflammatory sequelae of Bb infection appear to be refractory to antibiotics. An antimicrobial peptide with the ability to bind the DNA in the tissue could serve as a viable option of treatment for chronic complications of Lyme borreliosis. DNA of Bb can remain in tissues causing a prolonged inflammatory response that lead to chronic joint pain. Here we examined the effect of IL-26, a newly reported antimicrobial protein, against Bb DNA. An antimicrobial effect of IL-26 on the spirochete was observed. In human macrophages, IL-26 treated cells showed an increase in IRF activation upon Bb stimulation. Moreover, IL-26 treated macrophages showed an increased in phagocytic activity compared to untreated cells. Although no Bb DNA degradation was observed using a TUNEL assay run in an agarose gel, a Comet assay on whole bacteria showed cellular and Bb DNA degradation by IL-26. Our results showed that IL-26 (monomer and dimer) has not only the potential to control Bb growth in vitro, but it also enhances the anti-borrelial response of human macrophages. Further research aiming to characterize the role of IL-26 in controlling other aspects of the inflammatory response that could provide insight of its potential therapeutic applications are needed.
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Affiliation(s)
- Joshua Hirsh
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center at El Paso, Texas, U.S.A
| | - Piya Kositangool
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center at El Paso, Texas, U.S.A
| | - Aayush Shah
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center at El Paso, Texas, U.S.A
| | - Yousf Radwan
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center at El Paso, Texas, U.S.A
| | - Diana Padilla
- Laboratory for Education in Molecular Medicine, Texas Tech University Health Sciences Center at El Paso, TX, U.S.A
| | - Jose Barragan
- Laboratory for Education in Molecular Medicine, Texas Tech University Health Sciences Center at El Paso, TX, U.S.A
| | - Jorge Cervantes
- Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center at El Paso, Texas, U.S.A.,Laboratory for Education in Molecular Medicine, Texas Tech University Health Sciences Center at El Paso, TX, U.S.A
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66
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Klicznik MM, Morawski PA, Höllbacher B, Varkhande SR, Motley SJ, Kuri-Cervantes L, Goodwin E, Rosenblum MD, Long SA, Brachtl G, Duhen T, Betts MR, Campbell DJ, Gratz IK. Human CD4 +CD103 + cutaneous resident memory T cells are found in the circulation of healthy individuals. Sci Immunol 2020; 4:4/37/eaav8995. [PMID: 31278120 DOI: 10.1126/sciimmunol.aav8995] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/14/2019] [Accepted: 06/05/2019] [Indexed: 12/15/2022]
Abstract
Tissue-resident memory T cells (TRM) persist locally in nonlymphoid tissues where they provide frontline defense against recurring insults. TRM at barrier surfaces express the markers CD103 and/or CD69, which function to retain them in epithelial tissues. In humans, neither the long-term migratory behavior of TRM nor their ability to reenter the circulation and potentially migrate to distant tissue sites has been investigated. Using tissue explant cultures, we found that CD4+CD69+CD103+ TRM in human skin can down-regulate CD69 and exit the tissue. In addition, we identified a skin-tropic CD4+CD69-CD103+ population in human lymph and blood that is transcriptionally, functionally, and clonally related to the CD4+CD69+CD103+ TRM population in the skin. Using a skin xenograft model, we confirmed that a fraction of the human cutaneous CD4+CD103+ TRM population can reenter circulation and migrate to secondary human skin sites where they reassume a TRM phenotype. Thus, our data challenge current concepts regarding the strict tissue compartmentalization of CD4+ T cell memory in humans.
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Affiliation(s)
- Maria M Klicznik
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | | | - Barbara Höllbacher
- Department of Biosciences, University of Salzburg, Salzburg, Austria.,Benaroya Research Institute, Seattle, WA 98101, USA
| | - Suraj R Varkhande
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | | | - Leticia Kuri-Cervantes
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Eileen Goodwin
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Michael D Rosenblum
- Department of Dermatology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - S Alice Long
- Benaroya Research Institute, Seattle, WA 98101, USA
| | - Gabriele Brachtl
- Experimental and Clinical Cell Therapy Institute, Spinal Cord and Tissue Regeneration Center, Paracelsus Medical University, Salzburg, Austria
| | - Thomas Duhen
- Benaroya Research Institute, Seattle, WA 98101, USA
| | - Michael R Betts
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daniel J Campbell
- Benaroya Research Institute, Seattle, WA 98101, USA. .,Department of Immunology, University of Washington School of Medicine, Seattle, WA 98109, USA
| | - Iris K Gratz
- Department of Biosciences, University of Salzburg, Salzburg, Austria. .,Benaroya Research Institute, Seattle, WA 98101, USA.,EB House Austria, Department of Dermatology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
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67
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Hu Y, Kurobe T, Liu X, Zhang YA, Su J, Yuan G. Hamp Type-1 Promotes Antimicrobial Defense via Direct Microbial Killing and Regulating Iron Metabolism in Grass Carp ( Ctenopharyngodon idella). Biomolecules 2020; 10:biom10060825. [PMID: 32481513 PMCID: PMC7356000 DOI: 10.3390/biom10060825] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/24/2020] [Accepted: 05/26/2020] [Indexed: 12/18/2022] Open
Abstract
Hepcidin is an antimicrobial peptide and regulator of iron homeostasis which has two isoforms in most fishes and some mammals. Previous studies have reported that the two hepcidin isoforms have different roles. Hamp type-1 plays a regulatory role in iron metabolism and hamp type-2 mostly performs an antimicrobial role. In this study, we found that Ctenopharyngodon idella (C. idella) have only one hepcidin isoform (hamp type-1), which showed both broad-spectrum antibacterial and iron regulatory functions. C. idella hepcidin mature peptide (hepcidin-25) and truncated peptide (hepcidin-20) exhibited bactericidal activities against both Gram-positive and Gram-negative bacteria in a dose-dependent manner in part through membrane rupture and binding to bacterial genomic DNA. The data from challenge tests demonstrated that the administration of hepcidin-25 significantly reduced mortality rates of C. idella by A. hydrophila infection, probably due to direct bactericidal activities of the peptide and a reduction of iron content in the fish serum. In addition, a comparison between hepcidin-20 and -25 suggests that the N terminal 5 amino acids play a critical role in reducing iron content in fish serum. Our findings revealed an important role of hamp type-1 in maintaining iron homeostasis and fighting against bacterial infections, suggesting the hepcidin has implications for the prevention and control of bacterial infection in aquaculture.
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Affiliation(s)
- Yazhen Hu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (Y.H.); (X.L.); (Y.-A.Z.); (J.S.)
- Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan 430070, China
| | - Tomofumi Kurobe
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA;
| | - Xiaoling Liu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (Y.H.); (X.L.); (Y.-A.Z.); (J.S.)
- Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan 430070, China
| | - Yong-An Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (Y.H.); (X.L.); (Y.-A.Z.); (J.S.)
- Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan 430070, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (Y.H.); (X.L.); (Y.-A.Z.); (J.S.)
- Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan 430070, China
| | - Gailing Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (Y.H.); (X.L.); (Y.-A.Z.); (J.S.)
- Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan 430070, China
- Correspondence: ; Tel./Fax: +86-27-87285211
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68
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Bottois H, Ngollo M, Hammoudi N, Courau T, Bonnereau J, Chardiny V, Grand C, Gergaud B, Allez M, Le Bourhis L. KLRG1 and CD103 Expressions Define Distinct Intestinal Tissue-Resident Memory CD8 T Cell Subsets Modulated in Crohn's Disease. Front Immunol 2020; 11:896. [PMID: 32477365 PMCID: PMC7235448 DOI: 10.3389/fimmu.2020.00896] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 04/17/2020] [Indexed: 12/14/2022] Open
Abstract
Intestinal tissue-resident memory CD8 T cells (Trm) are non-recirculating effector cells ideally positioned to detect and react to microbial infections in the gut mucosa. There is an emerging understanding of Trm cell differentiation and functions, but their implication in inflammatory bowel diseases, such as Crohn's disease (CD), is still unknown. Here, we describe CD8 cells in the human intestine expressing KLRG1 or CD103, two receptors of E-cadherin. While CD103 CD8 T cells are present in high numbers in the mucosa of CD patients and controls, KLRG1 CD8 T cells are increased in inflammatory conditions. Mucosal CD103 CD8 T cells are more responsive to TCR restimulation, but KLRG1 CD8 T cells show increased cytotoxic and proliferative potential. CD103 CD8 T cells originate mostly from KLRG1 negative cells after TCR triggering and TGFβ stimulation. Interestingly, mucosal CD103 CD8 T cells from CD patients display major changes in their transcriptomic landscape compared to controls. They express Th17 related genes including CCL20, IL22, and IL26, which could contribute to the pathogenesis of CD. Overall, these findings suggest that CD103 CD8 T cells in CD induce a tissue-wide alert increasing innate immune responses and recruitment of effector cells such as KLRG1 CD8 T cells.
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Affiliation(s)
- Hugo Bottois
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Marjolaine Ngollo
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Nassim Hammoudi
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France.,Gastroenterology Department, Hopital Saint Louis, AP-HP, Paris, France
| | - Tristan Courau
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Julie Bonnereau
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Victor Chardiny
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Céline Grand
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Brice Gergaud
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
| | - Matthieu Allez
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France.,Gastroenterology Department, Hopital Saint Louis, AP-HP, Paris, France
| | - Lionel Le Bourhis
- Université de Paris, INSERM U1160, EMiLy, Institut de Recherche Saint-Louis, Paris, France
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69
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Trotter TN, Shuptrine CW, Tsao LC, Marek RD, Acharya C, Wei JP, Yang XY, Lei G, Wang T, Lyerly HK, Hartman ZC. IL26, a Noncanonical Mediator of DNA Inflammatory Stimulation, Promotes TNBC Engraftment and Progression in Association with Neutrophils. Cancer Res 2020; 80:3088-3100. [PMID: 32366475 DOI: 10.1158/0008-5472.can-18-3825] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/23/2019] [Accepted: 04/29/2020] [Indexed: 01/19/2023]
Abstract
IL26 is a unique amphipathic member of the IL10 family of cytokines that participates in inflammatory signaling through a canonical receptor pathway. It also directly binds DNA to facilitate cellular transduction and intracellular inflammatory signaling. Although IL26 has almost no described role in cancer, our in vivo screen of inflammatory and cytokine pathway genes revealed IL26 to be one of the most significant inflammatory mediators of mammary engraftment and lung metastatic growth in triple-negative breast cancer (TNBC). Examination of human breast cancers demonstrated elevated IL26 transcripts in TNBC specimens, specifically in tumor cells as well as in Th17 CD4+ T cells within clinical TNBC specimens. IL26 did not have an autocrine effect on human TNBC cells, but rather its effect on engraftment and growth in vivo required neutrophils. IL26 enhanced mouse-derived DNA induction of inflammatory cytokines, which were collectively important for mammary and metastatic lung engraftment. To neutralize this effect, we developed a novel IL26 vaccine to stimulate antibody production and suppress IL26-enhanced engraftment in vivo, suggesting that targeting this inflammatory amplifier could be a unique means to control cancer-promoting inflammation in TNBC and other autoimmune diseases. Thus, we identified IL26 as a novel key modulator of TNBC metastasis and a potential therapeutic target in TNBC as well as other diseases reliant upon IL26-mediated inflammatory stimulation. SIGNIFICANCE: These findings identify IL26 as a unique, clinically relevant, inflammatory amplifier that enhances TNBC engraftment and dissemination in association with neutrophils, which has potential as a therapeutic target. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/15/3088/F1.large.jpg.
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Affiliation(s)
| | | | - Li-Chung Tsao
- Department of Surgery, Duke University, Durham, North Carolina
| | - Robert D Marek
- Department of Pathology/Immunology, Duke University, Durham, North Carolina
| | | | - Jun-Ping Wei
- Department of Surgery, Duke University, Durham, North Carolina
| | - Xiao-Yi Yang
- Department of Surgery, Duke University, Durham, North Carolina
| | - Gangjun Lei
- Department of Surgery, Duke University, Durham, North Carolina
| | - Tao Wang
- Department of Surgery, Duke University, Durham, North Carolina
| | | | - Zachary C Hartman
- Department of Surgery, Duke University, Durham, North Carolina. .,Department of Pathology/Immunology, Duke University, Durham, North Carolina
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70
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Abstract
Mucosal-associated invariant T (MAIT) cells have been attracting increasing attention over the last few years as a potent unconventional T cell subset. Three factors largely account for this emerging interest. Firstly, these cells are abundant in humans, both in circulation and especially in some tissues such as the liver. Secondly is the discovery of a ligand that has uncovered their microbial targets, and also allowed for the development of tools to accurately track the cells in both humans and mice. Finally, it appears that the cells not only have a diverse range of functions but also are sensitive to a range of inflammatory triggers that can enhance or even bypass T cell receptor–mediated signals—substantially broadening their likely impact in health and disease. In this review we discuss how MAIT cells display antimicrobial, homeostatic, and amplifier roles in vivo, and how this may lead to protection and potentially pathology.
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Affiliation(s)
- Nicholas M. Provine
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Headington, Oxford OX3 9DU, United Kingdom
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Headington, Oxford OX3 9DU, United Kingdom
- NIHR Biomedical Research Centre, John Radcliffe Hospital, Headington, Oxford OX3 9DU, United Kingdom
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71
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Samotij D, Nedoszytko B, Bartosińska J, Batycka-Baran A, Czajkowski R, Dobrucki IT, Dobrucki LW, Górecka-Sokołowska M, Janaszak-Jasienicka A, Krasowska D, Kalinowski L, Macieja-Stawczyk M, Nowicki RJ, Owczarczyk-Saczonek A, Płoska A, Purzycka-Bohdan D, Radulska A, Reszka E, Siekierzycka A, Słomiński A, Słomiński R, Sobalska-Kwapis M, Strapagiel D, Szczerkowska-Dobosz A, Szczęch J, Żmijewski M, Reich A. Pathogenesis of psoriasis in the "omic" era. Part I. Epidemiology, clinical manifestation, immunological and neuroendocrine disturbances. Postepy Dermatol Alergol 2020; 37:135-153. [PMID: 32489346 PMCID: PMC7262814 DOI: 10.5114/ada.2020.94832] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Psoriasis is a common, chronic, inflammatory, immune-mediated skin disease affecting about 2% of the world's population. According to current knowledge, psoriasis is a complex disease that involves various genes and environmental factors, such as stress, injuries, infections and certain medications. The chronic inflammation of psoriasis lesions develops upon epidermal infiltration, activation, and expansion of type 1 and type 17 Th cells. Despite the enormous progress in understanding the mechanisms that cause psoriasis, the target cells and antigens that drive pathogenic T cell responses in psoriatic lesions are still unproven and the autoimmune basis of psoriasis still remains hypothetical. However, since the identification of the Th17 cell subset, the IL-23/Th17 immune axis has been considered a key driver of psoriatic inflammation, which has led to the development of biologic agents that target crucial elements of this pathway. Here we present the current understanding of various aspects in psoriasis pathogenesis.
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Affiliation(s)
- Dominik Samotij
- Department of Dermatology, University of Rzeszow, Rzeszow, Poland
| | - Bogusław Nedoszytko
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Joanna Bartosińska
- Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Lublin, Poland
| | - Aleksandra Batycka-Baran
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Rafał Czajkowski
- Department of Dermatology and Venereology, Faculty of Medicine, Ludwik Rydygier Medical College in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Iwona T. Dobrucki
- Beckman Institute for Advanced Science and Technology, Urbana, IL, USA
| | - Lawrence W. Dobrucki
- Beckman Institute for Advanced Science and Technology, Urbana, IL, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Magdalena Górecka-Sokołowska
- Department of Dermatology, Sexually Transmitted Disorders and Immunodermatology, Jurasz University Hospital No. 1, Bydgoszcz, Poland
| | - Anna Janaszak-Jasienicka
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Dorota Krasowska
- Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Lublin, Poland
| | - Leszek Kalinowski
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Marta Macieja-Stawczyk
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Roman J. Nowicki
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Agnieszka Owczarczyk-Saczonek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury, Olsztyn, Poland
| | - Agata Płoska
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Dorota Purzycka-Bohdan
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Adrianna Radulska
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Edyta Reszka
- Department of Molecular Genetics and Epigenetics, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - Anna Siekierzycka
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
- Biobanking and Biomolecular Resources Research Infrastructure, (BBMRI.PL), Gdansk, Poland
| | - Andrzej Słomiński
- Department of Dermatology, Birmingham, AL, USA
- Comprehensive Cancer Center, Cancer Chemoprevention Program, Birmingham, AL, USA
- VA Medical Center, Birmingham, AL, USA
| | - Radomir Słomiński
- Department of Medicine, Division of Rheumatology, University of Alabama, Birmingham, AL, USA
| | - Marta Sobalska-Kwapis
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Dominik Strapagiel
- Biobank Lab, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Aneta Szczerkowska-Dobosz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Justyna Szczęch
- Department of Dermatology, University of Rzeszow, Rzeszow, Poland
| | - Michał Żmijewski
- Department of Histology, Medical University of Gdansk, Gdansk, Poland
| | - Adam Reich
- Department of Dermatology, University of Rzeszow, Rzeszow, Poland
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72
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Yahaya T, Salisu T. Genes predisposing to type 1 diabetes mellitus and pathophysiology: a narrative review. MEDICAL JOURNAL OF INDONESIA 2020. [DOI: 10.13181/mji.rev.203732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The possibility of targeting the causal genes along with the mechanisms of pathogenically complex diseases has led to numerous studies on the genetic etiology of some diseases. In particular, studies have added more genes to the list of type 1 diabetes mellitus (T1DM) suspect genes, necessitating an update for the interest of all stakeholders. Therefore this review articulates T1DM suspect genes and their pathophysiology. Notable electronic databases, including Medline, Scopus, PubMed, and Google-Scholar were searched for relevant information. The search identified over 73 genes suspected in the pathogenesis of T1DM, with human leukocyte antigen, insulin gene, and cytotoxic T lymphocyte-associated antigen 4 accounting for most of the cases. Mutations in these genes, along with environmental factors, may produce a defective immune response in the pancreas, resulting in β-cell autoimmunity, insulin deficiency, and hyperglycemia. The mechanisms leading to these cellular reactions are gene-specific and, if targeted in diabetic individuals, may lead to improved treatment. Medical practitioners are advised to formulate treatment procedures that target these genes in patients with T1DM.
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73
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Matthias J, Maul J, Noster R, Meinl H, Chao YY, Gerstenberg H, Jeschke F, Gasparoni G, Welle A, Walter J, Nordström K, Eberhardt K, Renisch D, Donakonda S, Knolle P, Soll D, Grabbe S, Garzorz-Stark N, Eyerich K, Biedermann T, Baumjohann D, Zielinski CE. Sodium chloride is an ionic checkpoint for human T H2 cells and shapes the atopic skin microenvironment. Sci Transl Med 2020; 11:11/480/eaau0683. [PMID: 30787167 DOI: 10.1126/scitranslmed.aau0683] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/14/2018] [Accepted: 01/25/2019] [Indexed: 12/21/2022]
Abstract
The incidence of allergic diseases has increased over the past 50 years, likely due to environmental factors. However, the nature of these factors and the mode of action by which they induce the type 2 immune deviation characteristic of atopic diseases remain unclear. It has previously been reported that dietary sodium chloride promotes the polarization of T helper 17 (TH17) cells with implications for autoimmune diseases such as multiple sclerosis. Here, we demonstrate that sodium chloride also potently promotes TH2 cell responses on multiple regulatory levels. Sodium chloride enhanced interleukin-4 (IL-4) and IL-13 production while suppressing interferon-γ (IFN-γ) production in memory T cells. It diverted alternative T cell fates into the TH2 cell phenotype and also induced de novo TH2 cell polarization from naïve T cell precursors. Mechanistically, sodium chloride exerted its effects via the osmosensitive transcription factor NFAT5 and the kinase SGK-1, which regulated TH2 signature cytokines and master transcription factors in hyperosmolar salt conditions. The skin of patients suffering from atopic dermatitis contained elevated sodium compared to nonlesional atopic and healthy skin. These results suggest that sodium chloride represents a so far overlooked cutaneous microenvironmental checkpoint in atopic dermatitis that can induce TH2 cell responses, the orchestrators of atopic diseases.
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Affiliation(s)
- Julia Matthias
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,Department of Dermatology, Unit Cellular Immunoregulation, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Julia Maul
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Rebecca Noster
- Department of Dermatology, Unit Cellular Immunoregulation, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Hanna Meinl
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,TranslaTUM, Technical University of Munich, 81675 Munich, Germany
| | - Ying-Yin Chao
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,TranslaTUM, Technical University of Munich, 81675 Munich, Germany
| | | | - Florian Jeschke
- ZWE FRM II, Technical University of Munich, 85748 Garching, Germany
| | - Gilles Gasparoni
- Department of Genetics, University of Saarland, 66123 Saarbrücken, Germany
| | - Anna Welle
- Department of Genetics, University of Saarland, 66123 Saarbrücken, Germany
| | - Jörn Walter
- Department of Genetics, University of Saarland, 66123 Saarbrücken, Germany
| | - Karl Nordström
- Department of Genetics, University of Saarland, 66123 Saarbrücken, Germany
| | - Klaus Eberhardt
- Institute for Nuclear Chemistry, Johannes Gutenberg-Universität Mainz and Helmholtz Institute Mainz, 55252 Mainz, Germany
| | - Dennis Renisch
- Institute for Nuclear Chemistry, Johannes Gutenberg-Universität Mainz and Helmholtz Institute Mainz, 55252 Mainz, Germany
| | - Sainitin Donakonda
- German Center for Infection Research, Partner Site Munich, Munich, Germany.,Institute of Molecular Immunology and Experimental Oncology, Technical University of Munich, 81675 Munich, Germany
| | - Percy Knolle
- German Center for Infection Research, Partner Site Munich, Munich, Germany.,Institute of Molecular Immunology and Experimental Oncology, Technical University of Munich, 81675 Munich, Germany
| | - Dominik Soll
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Natalie Garzorz-Stark
- Department of Dermatology and Allergology, Technical University of Munich; Clinical Unit Allergology (EKA), Helmholtz Zentrum München; German Research Centre for Environmental Health GmbH, 80802 Munich, Germany
| | - Kilian Eyerich
- Department of Dermatology and Allergology, Technical University of Munich; Clinical Unit Allergology (EKA), Helmholtz Zentrum München; German Research Centre for Environmental Health GmbH, 80802 Munich, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergology, Technical University of Munich; Clinical Unit Allergology (EKA), Helmholtz Zentrum München; German Research Centre for Environmental Health GmbH, 80802 Munich, Germany
| | - Dirk Baumjohann
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Christina E Zielinski
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany. .,German Center for Infection Research, Partner Site Munich, Munich, Germany.,Department of Dermatology, Unit Cellular Immunoregulation, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany.,TranslaTUM, Technical University of Munich, 81675 Munich, Germany
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74
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Frasca L, Lande R. Toll-like receptors in mediating pathogenesis in systemic sclerosis. Clin Exp Immunol 2020; 201:14-24. [PMID: 32048277 DOI: 10.1111/cei.13426] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2020] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) are evolutionarily conserved receptors essential for the host defence against pathogens. Both immune and non-immune cells can express TLRs, although at different levels. Systemic sclerosis (SSc) is a chronic disease in which autoimmunity, dysregulated profibrotic mediator release and activation of fibroblasts lead to dysregulated collagen deposition and fibrosis. There is now increasing knowledge that the innate immune system and, in particular, TLRs take a part in SSc pathogenesis. The list of endogenous ligands that can stimulate TLRs in SSc is growing: these ligands represent specific danger-associated molecular patterns (DAMPs), involved either in the initiation or the perpetuation of inflammation, and in the release of factors that sustain the fibrotic process or directly stimulate the cells that produce collagen and the endothelial cells. This review reports evidences concerning TLR signalling involvement in SSc. We report the new DAMPs, as well as the TLR-linked pathways involved in disease, with emphasis on type I interferon signature in SSc, the role of plasmacytoid dendritic cells (pDCs) and platelets. The dissection of the contribution of all these pathways to disease, and their correlation with the disease status, as well as their values as prognostic tools, can help to plan timely intervention and design new drugs for more appropriate therapeutic strategies.
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Affiliation(s)
- L Frasca
- National Centre for Drug Research and Evaluation, Pharmacological Research and Experimental Therapy Unit, Istituto Superiore di Sanità, Rome, Italy
| | - R Lande
- National Centre for Drug Research and Evaluation, Pharmacological Research and Experimental Therapy Unit, Istituto Superiore di Sanità, Rome, Italy
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75
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Characterization and Antimicrobial Activity of the Teleost Chemokine CXCL20b. Antibiotics (Basel) 2020; 9:antibiotics9020078. [PMID: 32059392 PMCID: PMC7168194 DOI: 10.3390/antibiotics9020078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/08/2020] [Accepted: 02/09/2020] [Indexed: 02/06/2023] Open
Abstract
Fish are a potential source of diverse organic compounds with a broad spectrum of biological activities. Many fish-derived antimicrobial peptides and proteins are key components of the fish innate immune system. They are also potential candidates for development of new antimicrobial agents. CXCL20b is a grass carp (Ctenopharyngodon idella) CXC chemokine strongly transcribed at the early stage of bacterial infections, for which the immune role had not been reported to date. In the present study, we found that CXCL20b is a cationic amphipathic protein that displays potent antimicrobial activity against both Gram-positive and Gram-negative bacteria. The results of DiOC2(3) and atomic force microscopy (AFM) assays indicated that CXCL20b could induce bacterial membrane depolarization and disruption in a short time. By performing further structure-activity studies, we found that the antimicrobial activity of CXCL20b was mainly relative to the N-terminal random coil region. The central part of this cytokine representing β-sheet region was insoluble in water and the C-terminal α-helical region did not show an antimicrobial effect. The results presented in this article support the poorly understood function of CXCL20b, which fulfills an important role in bony fish antimicrobial immunity.
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76
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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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77
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Agarwal S, Kraus Z, Dement-Brown J, Alabi O, Starost K, Tolnay M. Human Fc Receptor-like 3 Inhibits Regulatory T Cell Function and Binds Secretory IgA. Cell Rep 2020; 30:1292-1299.e3. [DOI: 10.1016/j.celrep.2019.12.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 12/18/2019] [Accepted: 12/27/2019] [Indexed: 12/17/2022] Open
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78
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Abstract
Proinflammatory interleukin-26 (IL-26) is involved in chronic inflammation; however, the role of IL-26 in chronic hepatitis B (CHB) remains unknown.In this study, serum IL-26 was quantified in a cohort of CHB patients at baseline and during telbivudine (LdT) treatment.Our results showed that the serum IL-26 level was significantly elevated in CHB patients compared with that in healthy controls and was time-dependently decreased during LdT treatment, accompanying hepatitis B e antigen (HBeAg) seroconversion and reduced serum levels of hepatitis B virus (HBV) DNA, aspartate transaminase, and alanine transaminase across baseline and treatment. In addition, the serum level of IL-26 exhibited a similar declining trend to that of T helper 17 (Th17) cell-secreted IL-17 during LdT treatment in CHB patients. The percentage of IL-26-expressing CD4 cells was significantly higher than that of IL-26-expressing CD4 cells isolated from the peripheral blood mononuclear cells of CHB patients, suggesting that serum IL-26 might be mainly released from CD4 T cells. Furthermore, the baseline mRNA levels of IL-26 and orphan nuclear receptor RORγt-an important transcription factor expressed by Th17 cells-were positively correlated and displayed the same declining trend across the baseline and LdT treatment in CHB patients, suggesting that Th17 cells could be a possible cellular source of the increased serum IL-26 in CHB patients.Taken together, our results suggest that serum IL-26, possibly produced by Th17 CD4 cells, is a novel and potential biomarker for CHB prognosis and treatment.
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Affiliation(s)
- Liwen Luo
- Department of Pathophysiology and High Altitude Pathology
| | - Li Jiang
- Department of Infectious Diseases, Southwestern Hospital
| | - Zhiqiang Tian
- Institute of Immunology, Army Medical University, Chongqing
| | - Xinqi Zhang
- Department of Emergency, PLA 96th Hospital(General Hospital of Jinan Military Region), Jinan, China
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79
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Abstract
Helicobacter pylori is a Gram-negative bacterium that infects the gastric epithelia of its human host. Everyone who is colonized with these pathogenic bacteria can develop gastric inflammation, termed gastritis. Additionally, a small proportion of colonized people develop more adverse outcomes, including gastric ulcer disease, gastric adenocarcinoma, or gastric mucosa-associated lymphoid tissue lymphoma. The development of these adverse outcomes is dependent on the establishment of a chronic inflammatory response. The development and control of this chronic inflammatory response are significantly impacted by CD4+ T helper cell activity. Noteworthy, T helper 17 (Th17) cells, a proinflammatory subset of CD4+ T cells, produce several proinflammatory cytokines that activate innate immune cell antimicrobial activity, drive a pathogenic immune response, regulate B cell responses, and participate in wound healing. Therefore, this review was written to take an intricate look at the involvement of Th17 cells and their affiliated cytokines (interleukin-17A [IL-17A], IL-17F, IL-21, IL-22, and IL-26) in regulating the immune response to H. pylori colonization and carcinogenesis.
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80
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Lamichhane R, Schneider M, de la Harpe SM, Harrop TW, Hannaway RF, Dearden PK, Kirman JR, Tyndall JD, Vernall AJ, Ussher JE. TCR- or Cytokine-Activated CD8+ Mucosal-Associated Invariant T Cells Are Rapid Polyfunctional Effectors That Can Coordinate Immune Responses. Cell Rep 2019; 28:3061-3076.e5. [DOI: 10.1016/j.celrep.2019.08.054] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/11/2019] [Accepted: 08/16/2019] [Indexed: 12/22/2022] Open
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81
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Che KF, Sun J, Linden A. Pharmacological Modulation of Endotoxin-Induced Release of IL-26 in Human Primary Lung Fibroblasts. Front Pharmacol 2019; 10:956. [PMID: 31543817 PMCID: PMC6729122 DOI: 10.3389/fphar.2019.00956] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/26/2019] [Indexed: 12/28/2022] Open
Abstract
Background: Interleukin (IL)-26 is a neutrophil-mobilizing and bactericidal cytokine that is enhanced in human airways in vivo in response to endotoxin from Gram-negative bacteria. This cytokine is also enhanced in the airways during exacerbations of chronic obstructive pulmonary disease (COPD). Here, we investigated whether human primary lung fibroblasts (HLF) release IL-26 constitutively and in response to TLR4 stimulation by endotoxin and characterized the effects of bronchodilatory and anti-inflammatory drugs utilized in COPD. Methods: The HLF were stimulated with different concentrations of endotoxin. Cells were also treated with different concentrations of bronchodilatory and anti-inflammatory drugs, with and without endotoxin stimulation. Cytokine protein concentrations were quantified in the cell-free conditioned media [enzyme-linked immunosorbent assay (ELISA)], and the phosphorylation levels of intracellular signaling molecules were determined (phosphoELISA). Results: Whereas HLF displayed constitutive release of IL-26 into the conditioned medium, endotoxin markedly enhanced this release, as well as that of IL-6 and IL-8. This cytokine release was paralleled by increased phosphorylation of the intracellular signaling molecules NF-κB, c-Jun N-terminal kinase (JNK) 1-3, p38, and extracellular signal-regulated kinase (ERK) 1/2. The glucocorticoid hydrocortisone caused substantial inhibition of the endotoxin-induced release of IL-26, IL-6, and IL-8, an effect paralleled by a decrease of the phosphorylation of NF-κB, p38, and ERK1/2. The muscarinic receptor antagonist (MRA) tiotropium, but not aclidinium, caused minor inhibition of the endotoxin-induced release of IL-26 and IL-8, paralleled by a decreased phosphorylation of NF-κB. The β2-adrenoceptor agonist salbutamol caused modest inhibition of the endotoxin-induced release of IL-26 and IL-8, paralleled by a decreased phosphorylation of NF-κB, JNK1-3, and p38. Similar pharmacological effects were observed for the constitutive release of IL-26. Conclusions: The HLF constitute an abundant source of IL-26 that may contribute to local host defense against Gram-negative bacteria. Among the tested drugs, the glucocorticoid displayed the most powerful inhibitory effect, affecting the NF-κB, p38, and ERK1/2 signaling pathways. Whether or not this inhibition of IL-26 contributes to an increased risk for local infections in COPD requires further evaluation.
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Affiliation(s)
- Karlhans Fru Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jitong Sun
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Immunology, Genetics and Pathology, Experimental and Clinical Oncology, Uppsala University, Uppsala, Sweden
| | - Anders Linden
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Respiratory Disease and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden
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82
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Kulkarni NN, Takahashi T, Sanford JA, Tong Y, Gombart AF, Hinds B, Cheng JY, Gallo RL. Innate Immune Dysfunction in Rosacea Promotes Photosensitivity and Vascular Adhesion Molecule Expression. J Invest Dermatol 2019; 140:645-655.e6. [PMID: 31472105 DOI: 10.1016/j.jid.2019.08.436] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/30/2019] [Accepted: 08/11/2019] [Indexed: 01/12/2023]
Abstract
Rosacea is a chronic skin disease characterized by photosensitivity, abnormal dermal vascular behavior, inflammation, and enhanced expression of the antimicrobial peptide LL-37. We observed that dermal endothelial cells in rosacea had an increased expression of VCAM1 and hypothesized that LL-37 could be responsible for this response. The digestion of double-stranded RNA from keratinocytes exposed to UVB blocked the capacity of these cells to induce adhesion molecules on dermal microvascular endothelial cells. However, a synthetic noncoding snoU1RNA was only capable of increasing adhesion molecules on endothelial cells in the presence of LL-37, suggesting that the capacity of UVB exposure to promote both double-stranded RNA and LL-37 was responsible for the endothelial response to keratinocytes. Sequencing of RNA from the endothelial cells uncovered the activation of Gene Ontology (GO) pathways relevant to the human disease, such as type I and II interferon signaling, cell-cell adhesion, leukocyte chemotaxis, and angiogenesis. Functional relevance was demonstrated as double-stranded RNA and LL-37 promoted adhesion and transmigration of monocytes across the endothelial cell monolayers. Gene knockdown of TLR3, RIGI, or IRF1 decreased monocyte adhesion in endothelial cells, confirming the role of the double-stranded RNA recognition pathways. These observations show how the expression of LL-37 can lead to enhanced sensitivity to UVB radiation in rosacea.
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Affiliation(s)
- Nikhil N Kulkarni
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Toshiya Takahashi
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - James A Sanford
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Yun Tong
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Adrian F Gombart
- Linus Pauling Institute, Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon, USA
| | - Brian Hinds
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Joyce Y Cheng
- Department of Dermatology, University of California, San Diego, San Diego, California, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, San Diego, California, USA.
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83
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Kamijo H, Miyagaki T, Hayashi Y, Akatsuka T, Watanabe-Otobe S, Oka T, Shishido-Takahashi N, Suga H, Sugaya M, Sato S. Increased IL-26 Expression Promotes T Helper Type 17- and T Helper Type 2-Associated Cytokine Production by Keratinocytes in Atopic Dermatitis. J Invest Dermatol 2019; 140:636-644.e2. [PMID: 31465744 DOI: 10.1016/j.jid.2019.07.713] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/21/2019] [Accepted: 07/22/2019] [Indexed: 12/26/2022]
Abstract
Whereas atopic dermatitis (AD) is considered as a T helper 2 (Th2)-centered disease, IL-17-producing Th (Th17) cells are also activated in AD lesional skin. However, the relationship between Th17 responses and Th2 responses in AD is still to be elucidated. Although Th17 cells are increased in AD skin, the expression and function of IL-26, which is also produced by Th17 cells, in AD are still unknown. In this report, we demonstrated that IL-26 mRNA expression levels were elevated in AD lesional skin compared with healthy controls and that IL-26-producing cells were increased in AD lesional skin by immunohistochemistry. Furthermore, IL-26 promoted IL-8, IL-1β, chemokine (C-C motif) ligand 20, IL-33, and β-defensin 2 production in keratinocytes through phosphorylation of signal transducer and activator of transcription 1 and signal transducer and activator of transcription 3. Selective JAK inhibitors for JAK1, JAK2, and tyrosine kinase 2 blocked IL-26-induced cytokine production in keratinocytes. We also showed that injection of IL-26 exacerbated an oxazolone-induced AD mouse model and upregulated Th2 and Th17 cytokine expression in vivo. Because previous studies indicate that the above molecules induced by IL-26 can promote Th17 and/or Th2 immune responses, IL-26 may play an important role for bridging between Th17 and Th2 responses, resulting in the development of AD.
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Affiliation(s)
- Hiroaki Kamijo
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tomomitsu Miyagaki
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan.
| | - Yoshio Hayashi
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Taro Akatsuka
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Sayaka Watanabe-Otobe
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tomonori Oka
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Naomi Shishido-Takahashi
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan; Department of Dermatology, International University of Health and Welfare, Chiba, Japan
| | - Hiraku Suga
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Makoto Sugaya
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan; Department of Dermatology, International University of Health and Welfare, Chiba, Japan
| | - Shinichi Sato
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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84
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Hatano R, Itoh T, Otsuka H, Okamoto S, Komiya E, Iwata S, Aune TM, Dang NH, Kuwahara-Arai K, Ohnuma K, Morimoto C. Characterization of novel anti-IL-26 neutralizing monoclonal antibodies for the treatment of inflammatory diseases including psoriasis. MAbs 2019; 11:1428-1442. [PMID: 31397631 DOI: 10.1080/19420862.2019.1654305] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Interleukin (IL)-26, known as a Th17 cytokine, acts on various cell types and has multiple biological functions. Although its precise role still remains to be elucidated, IL-26 is suggested to be associated with the pathology of diverse chronic inflammatory diseases such as psoriasis, inflammatory bowel diseases and rheumatoid arthritis. To develop novel neutralizing anti-human IL-26 monoclonal antibodies (mAbs) for therapeutic use in the clinical setting, we immunized mice with human IL-26 protein. Hybridomas producing anti-IL-26 mAbs were screened for various in vitro functional assays, STAT3 phosphorylation and antibiotic assays. Although the IL-20RA/IL-10RB heterodimer is generally believed to be the IL-26 receptor, our data strongly suggest that both IL-20RA-dependent and -independent pathways are involved in IL-26-mediated stimulation. We also investigated the potential therapeutic effect of anti-IL-26 mAbs in the imiquimod-induced psoriasis-like murine model using human IL-26 transgenic mice. These screening methods enabled us to develop novel neutralizing anti-human IL-26 mAbs. Importantly, administration of IL-26-neutralizing mAb did not have an effect on the antimicrobial activity of IL-26. Taken together, our data strongly suggest that our newly developed anti-human IL-26 mAb is a potential therapeutic agent for the treatment of diverse chronic inflammatory diseases including psoriasis.
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Affiliation(s)
- Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Takumi Itoh
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Haruna Otsuka
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Sayo Okamoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Eriko Komiya
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan.,Institute for Environmental and Gender Specific Medicine, Juntendo University Graduate School of Medicine , Urayasu , Japan
| | - Satoshi Iwata
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Thomas M Aune
- Department of Medicine, Vanderbilt University School of Medicine, Vanderbilt University Medical Center , Nashville , TN , USA
| | - Nam H Dang
- Division of Hematology/Oncology, University of Florida , Gainesville , FL , USA
| | - Kyoko Kuwahara-Arai
- Department of Microbiology, Juntendo University School of Medicine , Tokyo , Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University , Tokyo , Japan
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85
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Schön MP. Adaptive and Innate Immunity in Psoriasis and Other Inflammatory Disorders. Front Immunol 2019; 10:1764. [PMID: 31402919 PMCID: PMC6676248 DOI: 10.3389/fimmu.2019.01764] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/11/2019] [Indexed: 12/14/2022] Open
Abstract
Over the past three decades, a considerable body of evidence has highlighted T cells as pivotal culprits in the pathogenesis of psoriasis. This includes the association of psoriasis with certain MHC (HLA) alleles, oligoclonal expansion of T cells in some cases, therapeutic response to T cell-directed immunomodulation, the onset of psoriasis following bone marrow transplantation, or induction of psoriasis-like inflammation by T cells in experimental animals. There is accumulating clinical and experimental evidence suggesting that both autoimmune and autoinflammatory mechanisms lie at the core of the disease. Indeed, some studies suggested antigenic functions of structural proteins, and complexes of self-DNA with cathelicidin (LL37) or melanocytic ADAMTSL5 have been proposed more recently as actual auto-antigens in some cases of psoriasis. These findings are accompanied by various immunoregulatory mechanisms, which we increasingly understand and which connect innate and adaptive immunity. Specific adaptive autoimmune responses, together with our current view of psoriasis as a systemic inflammatory disorder, raise the question of whether psoriasis may have connections to autoimmune or autoinflammatory disorders elsewhere in the body. While such associations have been suspected for many years, compelling mechanistic evidence in support of this notion is still scant. This review sets into context the current knowledge about innate and adaptive immunological processes in psoriasis and other autoimmune or autoinflammatory diseases.
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Affiliation(s)
- Michael P Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
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86
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Tufvesson E, Jogdand P, Che KF, Levänen B, Erjefält JS, Bjermer L, Lindén A. Enhanced local production of IL-26 in uncontrolled compared with controlled adult asthma. J Allergy Clin Immunol 2019; 144:1134-1136.e10. [PMID: 31288043 DOI: 10.1016/j.jaci.2019.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 05/17/2019] [Accepted: 06/11/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Ellen Tufvesson
- Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund University, Lund
| | - Prajakta Jogdand
- Airway Inflammation, Department of Experimental Medical Science, Lund University, Lund
| | - Karlhans Fru Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm
| | - Bettina Levänen
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm
| | - Jonas S Erjefält
- Airway Inflammation, Department of Experimental Medical Science, Lund University, Lund
| | - Leif Bjermer
- Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund University, Lund
| | - Anders Lindén
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm; Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden.
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87
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Weiss DI, Ma F, Merleev AA, Maverakis E, Gilliet M, Balin SJ, Bryson BD, Ochoa MT, Pellegrini M, Bloom BR, Modlin RL. IL-1β Induces the Rapid Secretion of the Antimicrobial Protein IL-26 from Th17 Cells. THE JOURNAL OF IMMUNOLOGY 2019; 203:911-921. [PMID: 31235553 DOI: 10.4049/jimmunol.1900318] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/06/2019] [Indexed: 12/18/2022]
Abstract
Th17 cells play a critical role in the adaptive immune response against extracellular bacteria, and the possible mechanisms by which they can protect against infection are of particular interest. In this study, we describe, to our knowledge, a novel IL-1β dependent pathway for secretion of the antimicrobial peptide IL-26 from human Th17 cells that is independent of and more rapid than classical TCR activation. We find that IL-26 is secreted 3 hours after treating PBMCs with Mycobacterium leprae as compared with 48 hours for IFN-γ and IL-17A. IL-1β was required for microbial ligand induction of IL-26 and was sufficient to stimulate IL-26 release from Th17 cells. Only IL-1RI+ Th17 cells responded to IL-1β, inducing an NF-κB-regulated transcriptome. Finally, supernatants from IL-1β-treated memory T cells killed Escherichia coli in an IL-26-dependent manner. These results identify a mechanism by which human IL-1RI+ "antimicrobial Th17 cells" can be rapidly activated by IL-1β as part of the innate immune response to produce IL-26 to kill extracellular bacteria.
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Affiliation(s)
- David I Weiss
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095.,Molecular Biology Interdepartmental Graduate Program, University of California, Los Angeles, Los Angeles, CA 90095
| | - Feiyang Ma
- Molecular Biology Interdepartmental Graduate Program, University of California, Los Angeles, Los Angeles, CA 90095.,Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Alexander A Merleev
- Department of Dermatology, University of California, Davis, Sacramento, CA 95817
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, CA 95817
| | - Michel Gilliet
- Department of Dermatology, University Hospital Lausanne, 1005 Lausanne, Switzerland
| | - Samuel J Balin
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095
| | - Bryan D Bryson
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142
| | - Maria Teresa Ochoa
- Department of Dermatology, University of Southern California School of Medicine, Los Angeles, CA 90033
| | - Matteo Pellegrini
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095.,Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095
| | - Barry R Bloom
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115; and
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095; .,Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095
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88
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Scala E, Di Caprio R, Cacciapuoti S, Caiazzo G, Fusco A, Tortorella E, Fabbrocini G, Balato A. A new T helper 17 cytokine in hidradenitis suppurativa: antimicrobial and proinflammatory role of interleukin-26. Br J Dermatol 2019; 181:1038-1045. [PMID: 30829398 DOI: 10.1111/bjd.17854] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Interleukin (IL)-26 is a signature T helper 17 cytokine described as a proinflammatory and antimicrobial mediator. So far, IL-26 has been reported in several immune-mediated inflammatory diseases, but its involvement in inflammatory skin disorders is poorly known. OBJECTIVES To investigate the role of IL-26 in hidradenitis suppurativa (HS), through its involvement in antimicrobial activity. METHODS IL-26 was assessed in patients with HS through gene expression and protein analysis at skin and circulating levels. Ex vivo HS organ skin cultures, together with IL-26 antibody treatment, were performed to determine the IL-26 activity. Peripheral blood mononuclear cells (PBMCs) from patients with HS and healthy controls were either silenced or not with IL-26 small interfering (si)RNA in order to measure its antimicrobial, cytotoxic and phagocytic activities against Staphylococcus aureus. RESULTS Firstly, we observed that IL-26 is able to modulate the proinflammatory response at the immune cell level. IL-26 was increased in the plasma of patients with HS compared with healthy controls. Subsequently, we explored the bactericidal, cytotoxic and phagocytic activities of PBMCs against S. aureus in patients with HS and healthy controls. These activities were lower in patients with HS than in controls. Remarkably, the killing activities were reduced when healthy control PBMCs were transfected with IL-26 siRNA. However, the transfection did not affect the killing activity of HS PBMCs, supporting the idea that IL-26 lacks efficacy in HS. CONCLUSIONS Our findings suggest that infection susceptibility in HS might be related to IL-26. Although the role of bacteria remains controversial in HS, this paper supports that there is a defect of antimicrobial response in these patients. What's already known about this topic? Interleukin (IL)-26 is a T helper 17 cytokine described as an antimicrobial and proinflammatory mediator. IL-26 has been reported in immune-mediated inflammatory diseases, but its involvement in inflammatory skin disorders remains unclear. Hidradenitis suppurativa (HS) is a chronic inflammatory skin disorder characterized by deficiency of IL-20 and IL-22 (a close homologue of IL-26), which causes antimicrobial peptide pauperization leading to severe and recurrent skin infections. What does this study add? IL-26 plasma levels are higher in patients with HS than in healthy control individuals. The antimicrobial activity of IL-26 might be ineffective in patients with HS. What is the translational message? Cutaneous antimicrobial incompetence in HS could be related to IL-26.
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Affiliation(s)
- E Scala
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - R Di Caprio
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - S Cacciapuoti
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - G Caiazzo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - A Fusco
- Department of Experimental Medicine, University of Campania 'Luigi Vanvitelli', Naples, Italy
| | - E Tortorella
- Institute of Protein Biochemistry, National Research Council, Naples, Italy
| | - G Fabbrocini
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
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89
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Lande R, Lee EY, Palazzo R, Marinari B, Pietraforte I, Santos GS, Mattenberger Y, Spadaro F, Stefanantoni K, Iannace N, Dufour AM, Falchi M, Bianco M, Botti E, Bianchi L, Alvarez M, Riccieri V, Truchetet ME, C.L. Wong G, Chizzolini C, Frasca L. CXCL4 assembles DNA into liquid crystalline complexes to amplify TLR9-mediated interferon-α production in systemic sclerosis. Nat Commun 2019; 10:1731. [PMID: 31043596 PMCID: PMC6494823 DOI: 10.1038/s41467-019-09683-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 03/23/2019] [Indexed: 01/17/2023] Open
Abstract
Systemic sclerosis (SSc) is a chronic autoimmune disease characterized by fibrosis and vasculopathy. CXCL4 represents an early serum biomarker of severe SSc and likely contributes to inflammation via chemokine signaling pathways, but the exact role of CXCL4 in SSc pathogenesis is unclear. Here, we elucidate an unanticipated mechanism for CXCL4-mediated immune amplification in SSc, in which CXCL4 organizes "self" and microbial DNA into liquid crystalline immune complexes that amplify TLR9-mediated plasmacytoid dendritic cell (pDC)-hyperactivation and interferon-α production. Surprisingly, this activity does not require CXCR3, the CXCL4 receptor. Importantly, we find that CXCL4-DNA complexes are present in vivo and correlate with type I interferon (IFN-I) in SSc blood, and that CXCL4-positive skin pDCs coexpress IFN-I-related genes. Thus, we establish a direct link between CXCL4 overexpression and the IFN-I-gene signature in SSc and outline a paradigm in which chemokines can drastically modulate innate immune receptors without being direct agonists.
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Affiliation(s)
- Roberto Lande
- National Center for Drug Research and Evaluation, Pharmacological research and experimental therapy UNIT, Istituto Superiore di Sanità (ISS), 00161 Rome, Italy
| | - Ernest Y. Lee
- Department of Bioengineering, Department of Chemistry & Biochemistry, and California NanoSystems Institute, University of California, Los Angeles, CA 90095 USA
| | - Raffaella Palazzo
- National Center for Drug Research and Evaluation, Pharmacological research and experimental therapy UNIT, Istituto Superiore di Sanità (ISS), 00161 Rome, Italy
| | - Barbara Marinari
- Dermatology Unit, Department of Systems Medicine, University of Tor Vergata, Rome, 00133 Italy
| | - Immacolata Pietraforte
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Giancarlo Santiago Santos
- Department of Bioengineering, Department of Chemistry & Biochemistry, and California NanoSystems Institute, University of California, Los Angeles, CA 90095 USA
| | - Yves Mattenberger
- Department of Microbiol and Molecular Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Francesca Spadaro
- Istituto Superiore di Sanità, Confocal Microscopy Unit, Core Facilities, Rome, 00161 Italy
| | - Katia Stefanantoni
- Division of Rheumatology, Internal Medicine and Medical Specialties, University La Sapienza, 00161 Rome, Italy
| | - Nicoletta Iannace
- Division of Rheumatology, Internal Medicine and Medical Specialties, University La Sapienza, 00161 Rome, Italy
| | - Aleksandra Maria Dufour
- Immunology & Allergy and Immunology & Pathology, University Hospital and School of Medicine, CH-1211 Geneva, Switzerland
| | - Mario Falchi
- Istituto Superiore di Sanità, National AIDS Center, Rome, 00161 Italy
| | - Manuela Bianco
- National Center for Drug Research and Evaluation, Pharmacological research and experimental therapy UNIT, Istituto Superiore di Sanità (ISS), 00161 Rome, Italy
| | - Elisabetta Botti
- Dermatology Unit, Department of Systems Medicine, University of Tor Vergata, Rome, 00133 Italy
| | - Luca Bianchi
- Dermatology Unit, Department of Systems Medicine, University of Tor Vergata, Rome, 00133 Italy
| | - Montserrat Alvarez
- Immunology & Allergy and Immunology & Pathology, University Hospital and School of Medicine, CH-1211 Geneva, Switzerland
| | - Valeria Riccieri
- Division of Rheumatology, Internal Medicine and Medical Specialties, University La Sapienza, 00161 Rome, Italy
| | - Marie-Elise Truchetet
- Division of Rheumatology and immunoConcept, University Hospital, Bordeaux, 33076 France
| | - Gerard C.L. Wong
- Department of Bioengineering, Department of Chemistry & Biochemistry, and California NanoSystems Institute, University of California, Los Angeles, CA 90095 USA
| | - Carlo Chizzolini
- Immunology & Allergy and Immunology & Pathology, University Hospital and School of Medicine, CH-1211 Geneva, Switzerland
| | - Loredana Frasca
- National Center for Drug Research and Evaluation, Pharmacological research and experimental therapy UNIT, Istituto Superiore di Sanità (ISS), 00161 Rome, Italy
- Immunology & Allergy and Immunology & Pathology, University Hospital and School of Medicine, CH-1211 Geneva, Switzerland
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90
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Zhang M, Niu YR, Liu JY, Wei XS, Wang XR, Ye LL, Peng WB, Zhang JC, Tao XN, Zhou Q. Interleukin-26 upregulates interleukin-22 production by human CD4 + T cells in tuberculous pleurisy. J Mol Med (Berl) 2019; 97:619-631. [PMID: 30834948 DOI: 10.1007/s00109-018-01741-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/16/2018] [Accepted: 12/26/2018] [Indexed: 12/18/2022]
Abstract
IL-26 is a potentially important player in host defense and may be a pathogenic factor in the chronic inflammatory disorders of humans. However, the involvement of IL-26 in tuberculous pleural effusion (TPE) has not been investigated. The concentration of IL-26 was determined in pleural fluids and sera from patients with pleural effusions. Flow cytometry was performed to identify the cell origin of IL-26. The effects of tuberculosis-specific antigen (ESAT-6/CFP-10) on IL-26 expression of CD4+ T cell were explored. The impacts of IL-26 on modulating CD4+ T cell polarization were also investigated. The concentrations of IL-26 were much higher in tuberculous, malignant, and infectious PE than those in the corresponding serum. The expression of IL-26 on CD4+ T cells was much higher in tuberculous PE than those in the corresponding serum, and pleural Th1 and Th17 cells might be the major cell sources of IL-26. The addition of ESAT-6/CFP-10 to CD4+ T cells led to increasing the number of IL-26-producing CD4+ T cells and IL-26 expression on Th1 and Th17 cells. IL-26 could induce the differentiation and generation of IL-22 by memory and naive CD4+ T cells. IL-26 also upregulated the mRNA encoding CC-chemokine ligand 20 (CCL20) and CCL22 by mononuclear cells isolated from TPE. This study implies that pleural Th1 and Th17 cells are the major cell sources of IL-26, which could induce the differentiation and generation of Th22 cells by CD4+ T cells, suggesting the involvement of IL-26 in the pathogenesis of human TPE. KEY MESSAGES: IL-26 is overexpressed in TPE patients and presents a higher concentration in pleural effusion than the corresponding peripheral blood. Pleural Th1 and Th17 cells might be the major cell sources of IL-26 in TPE patients. IL-26 promotes IL-22 secretion and Th22 generation by CD4+ T cells isolated from TPE patients. IL-26 may play an active role in the pathogenesis of tuberculous pleurisy.
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Affiliation(s)
- Min Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi-Ran Niu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing-Yuan Liu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Shan Wei
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Rong Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin-Lin Ye
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Bei Peng
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Chu Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Nan Tao
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiong Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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91
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Dang AT, Teles RM, Weiss DI, Parvatiyar K, Sarno EN, Ochoa MT, Cheng G, Gilliet M, Bloom BR, Modlin RL. IL-26 contributes to host defense against intracellular bacteria. J Clin Invest 2019; 129:1926-1939. [PMID: 30939123 DOI: 10.1172/jci99550] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 02/19/2019] [Indexed: 12/18/2022] Open
Abstract
IL-26 is an antimicrobial protein secreted by Th17 cells that has the ability to directly kill extracellular bacteria. To ascertain whether IL-26 contributes to host defense against intracellular bacteria, we studied leprosy, caused by the obligate intracellular pathogen Mycobacterium leprae, as a model. Analysis of leprosy skin lesions by gene expression profiling and immunohistology revealed that IL-26 was more strongly expressed in lesions from the self-limited tuberculoid compared with expression in progressive lepromatous patients. IL-26 directly bound to M. leprae in axenic culture and reduced bacteria viability. Furthermore, IL-26, when added to human monocyte-derived macrophages infected with M. leprae, entered the infected cell, colocalized with the bacterium, and reduced bacteria viability. In addition, IL-26 induced autophagy via the cytoplasmic DNA receptor stimulator of IFN genes (STING), as well as fusion of phagosomes containing bacilli with lysosomal compartments. Altogether, our data suggest that the Th17 cytokine IL-26 contributes to host defense against intracellular bacteria.
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Affiliation(s)
- Angeline Tilly Dang
- Division of Dermatology, Department of Medicine.,Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | | | - David I Weiss
- Division of Dermatology, Department of Medicine.,Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Kislay Parvatiyar
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Euzenir N Sarno
- Leprosy Laboratory, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Maria T Ochoa
- Department of Dermatology, University of Southern California School of Medicine, Los Angeles, California, USA
| | - Genhong Cheng
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Michel Gilliet
- Department of Medicine, Dermatology Service, Lausanne University Hospital of Lausanne, Lausanne, Switzerland
| | - Barry R Bloom
- Harvard School of Public Health, Boston, Massachusetts, USA
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine.,Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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92
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Itoh T, Hatano R, Komiya E, Otsuka H, Narita Y, Aune TM, Dang NH, Matsuoka S, Naito H, Tominaga M, Takamori K, Morimoto C, Ohnuma K. Biological Effects of IL-26 on T Cell–Mediated Skin Inflammation, Including Psoriasis. J Invest Dermatol 2019; 139:878-889. [DOI: 10.1016/j.jid.2018.09.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 12/20/2022]
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93
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Weishaar IM, Young RS, Wiles BM, McGee DW. The Effect of IL-26 on TNF-α-Induced CXCL8 Responses by Colonic Epithelial Cell Lines. Immunol Invest 2019; 48:822-834. [PMID: 30917710 DOI: 10.1080/08820139.2019.1594247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Th17 cells of the intestine and colon can produce several important cytokines during mucosal inflammation. However, few studies have focused on the role of IL-26 in intestinal inflammations. Colonic epithelial cells express receptors for IL-26, and this cytokine has been shown to induce the HT-29 colonic epithelial cell line to produce the chemokine CXCL8. However, epithelial cells would function in a cytokine network environment during mucosal inflammation and any effect of IL-26 on colonic epithelial cell chemokine responses could be affected by the presence of other potent pro-inflammatory cytokines like TNF-α and IL-1. Therefore, we investigated the effect of IL-26 with TNF-α or IL-1 on colonic epithelial cell line secretion of CXCL8. IL-26 alone had no effect on HT-29 or DLD1 cell line CXCL8 secretion. Yet, IL-26 was found to significantly enhance TNF-α-induced, but not IL-1-induced, CXCL8 secretion, but only at high levels of TNF-α. Similar results were seen with DLD1 cells. IL-26 did not enhance TNF-α-induced CXCL8 mRNA levels and did not affect TNF-α-induced IκBα phosphorylation or degradation. However, signaling through ERK and p38 MAPK were determined to be involved in the enhancing effect of IL-26 on the TNF-α-induced CXCL8 secretion, perhaps through known post-translational effects. These results suggest that the role of IL-26 in intestinal inflammation may be limited to enhancing CXCL8 secretion in the presence high levels of TNF-α, such as may occur in inflammatory bowel disease. Abbreviations: DMEM, Dulbecco's Modified Eagle's Medium; GAPDH, glyceraldehyde-3-phosphate dehydrogenase; IBD, inflammatory bowel disease; IL, interleukin; ITS, insulin, transferrin, selenium; TBS, Tris buffered saline; TNF, tumor necrosis factor.
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Affiliation(s)
- Isabelle M Weishaar
- Department of Biological Sciences, Binghamton University (SUNY) , Binghamton , New York USA
| | - Rebecca S Young
- Department of Biological Sciences, Binghamton University (SUNY) , Binghamton , New York USA
| | - Brody M Wiles
- Department of Biological Sciences, Binghamton University (SUNY) , Binghamton , New York USA
| | - Dennis W McGee
- Department of Biological Sciences, Binghamton University (SUNY) , Binghamton , New York USA
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94
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Adibzadeh Sereshgi MM, Abdollahpour-Alitappeh M, Mahdavi M, Ranjbar R, Ahmadi K, Taheri RA, Fasihi-Ramandi M. Immunologic balance of regulatory T cell/T helper 17 responses in gastrointestinal infectious diseases: Role of miRNAs. Microb Pathog 2019; 131:135-143. [PMID: 30914387 DOI: 10.1016/j.micpath.2019.03.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 12/22/2022]
Abstract
Gastrointestinal Infectious diseases (GIDs) are the second cause of death worldwide. T helper17 cells (Th17) play an important role in GIDs through production of IL-17A, IL-17F, and IL-22 cytokines. Because of their increased activities in GID, Th17 and its inflammatory cytokines can inhibit the progression and eliminate the infection. Actually, although Th17 have the best performance in the acute phase, regulatory T cells (Treg cells) are enhanced in the chronic phase and infection progress through its suppressive function. In addition, Treg cells prevent undesirable inflammatory damages developed by immune system components. On the other hand, miRNAs have important roles in the regulation of immune responses to eliminate bacterial infections and protect host organisms from harmful effects. Actually, miRNAs can reinforce innate and adaptive immunity to remove infections. Of note, miRNAs can develop a regulatory network with the immune system. Additionally, miRNAs can also serve in favor of bacteria to reduce immune responses. Therefore, balance of immune responses in Treg and Th17 cells can influence outcome of many infectious diseases. In conclusion, there is an imbalance in the Treg/Th17 ratio in GIDs; importantly, sets of miRNAs, particularly miR155 and miR146, were determined to be involved clearly in GIDs.
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Affiliation(s)
| | | | - Mehdi Mahdavi
- Immunotherapy Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; Recombinant Vaccine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Ranjbar
- Molecular Biology Research Center, System Biology and Poisoning Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Kazem Ahmadi
- Molecular Biology Research Center, System Biology and Poisoning Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ramezan Ali Taheri
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mahdi Fasihi-Ramandi
- Molecular Biology Research Center, System Biology and Poisoning Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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95
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Duvvuri B, Lood C. Cell-Free DNA as a Biomarker in Autoimmune Rheumatic Diseases. Front Immunol 2019; 10:502. [PMID: 30941136 PMCID: PMC6433826 DOI: 10.3389/fimmu.2019.00502] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/25/2019] [Indexed: 12/11/2022] Open
Abstract
Endogenous DNA is primarily found intracellularly in nuclei and mitochondria. However, extracellular, cell-free (cf) DNA, has been observed in several pathological conditions, including autoimmune diseases, prompting the interest of developing cfDNA as a potential biomarker. There is an upsurge in studies considering cfDNA to stratify patients, monitor the treatment response and predict disease progression, thus evaluating the prognostic potential of cfDNA for autoimmune diseases. Since the discovery of elevated cfDNA levels in lupus patients in the 1960s, cfDNA research in autoimmune diseases has mainly focused on the overall quantification of cfDNA and the association with disease activity. However, with recent technological advancements, including genomic and methylomic sequencing, qualitative changes in cfDNA are being explored in autoimmune diseases, similar to the ones used in molecular profiling of cfDNA in cancer patients. Further, the intracellular origin, e.g., if derived from mitochondrial or nuclear source, as well as the complexing with carrier molecules, including LL-37 and HMGB1, has emerged as important factors to consider when analyzing the quality and inflammatory potential of cfDNA. The clinical relevance of cfDNA in autoimmune rheumatic diseases is strengthened by mechanistic insights into the biological processes that result in an enhanced release of DNA into the circulation during autoimmune and inflammatory conditions. Prior work have established an important role of accelerated apoptosis and impaired clearance in leakage of nucleic acids into the extracellular environment. Findings from more recent studies, including our own investigations, have demonstrated that NETosis, a neutrophil cell death process, can result in a selective extrusion of inflammatory mitochondrial DNA; a process which is enhanced in patients with lupus and rheumatoid arthritis. In this review, we will summarize the evolution of cfDNA, both nuclear and mitochondrial DNA, as biomarkers for autoimmune rheumatic diseases and discuss limitations, challenges and implications to establish cfDNA as a biomarker for clinical use. This review will also highlight recent advancements in mechanistic studies demonstrating mitochondrial DNA as a central component of cfDNA in autoimmune rheumatic diseases.
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Affiliation(s)
- Bhargavi Duvvuri
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Christian Lood
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, United States
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96
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Unifying structural signature of eukaryotic α-helical host defense peptides. Proc Natl Acad Sci U S A 2019; 116:6944-6953. [PMID: 30877253 DOI: 10.1073/pnas.1819250116] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Diversity of α-helical host defense peptides (αHDPs) contributes to immunity against a broad spectrum of pathogens via multiple functions. Thus, resolving common structure-function relationships among αHDPs is inherently difficult, even for artificial-intelligence-based methods that seek multifactorial trends rather than foundational principles. Here, bioinformatic and pattern recognition methods were applied to identify a unifying signature of eukaryotic αHDPs derived from amino acid sequence, biochemical, and three-dimensional properties of known αHDPs. The signature formula contains a helical domain of 12 residues with a mean hydrophobic moment of 0.50 and favoring aliphatic over aromatic hydrophobes in 18-aa windows of peptides or proteins matching its semantic definition. The holistic α-core signature subsumes existing physicochemical properties of αHDPs, and converged strongly with predictions of an independent machine-learning-based classifier recognizing sequences inducing negative Gaussian curvature in target membranes. Queries using the α-core formula identified 93% of all annotated αHDPs in proteomic databases and retrieved all major αHDP families. Synthesis and antimicrobial assays confirmed efficacies of predicted sequences having no previously known antimicrobial activity. The unifying α-core signature establishes a foundational framework for discovering and understanding αHDPs encompassing diverse structural and mechanistic variations, and affords possibilities for deterministic design of antiinfectives.
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97
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Lee EY, Zhang C, Di Domizio J, Jin F, Connell W, Hung M, Malkoff N, Veksler V, Gilliet M, Ren P, Wong GCL. Helical antimicrobial peptides assemble into protofibril scaffolds that present ordered dsDNA to TLR9. Nat Commun 2019; 10:1012. [PMID: 30833557 PMCID: PMC6399285 DOI: 10.1038/s41467-019-08868-w] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/27/2018] [Indexed: 01/14/2023] Open
Abstract
Amphiphilicity in ɑ-helical antimicrobial peptides (AMPs) is recognized as a signature of potential membrane activity. Some AMPs are also strongly immunomodulatory: LL37-DNA complexes potently amplify Toll-like receptor 9 (TLR9) activation in immune cells and exacerbate autoimmune diseases. The rules governing this proinflammatory activity of AMPs are unknown. Here we examine the supramolecular structures formed between DNA and three prototypical AMPs using small angle X-ray scattering and molecular modeling. We correlate these structures to their ability to activate TLR9 and show that a key criterion is the AMP's ability to assemble into superhelical protofibril scaffolds. These structures enforce spatially-periodic DNA organization in nanocrystalline immunocomplexes that trigger strong recognition by TLR9, which is conventionally known to bind single DNA ligands. We demonstrate that we can "knock in" this ability for TLR9 amplification in membrane-active AMP mutants, which suggests the existence of tradeoffs between membrane permeating activity and immunomodulatory activity in AMP sequences.
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Affiliation(s)
- Ernest Y Lee
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Changsheng Zhang
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China
| | - Jeremy Di Domizio
- Department of Dermatology, Lausanne University Hospital CHUV, 1011, Lausanne, Switzerland
| | - Fan Jin
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, 230026, PR China
| | - Will Connell
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Mandy Hung
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Nicolas Malkoff
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Veronica Veksler
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Michel Gilliet
- Department of Dermatology, Lausanne University Hospital CHUV, 1011, Lausanne, Switzerland
| | - Pengyu Ren
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
| | - Gerard C L Wong
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
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98
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Larochette V, Miot C, Poli C, Beaumont E, Roingeard P, Fickenscher H, Jeannin P, Delneste Y. IL-26, a Cytokine With Roles in Extracellular DNA-Induced Inflammation and Microbial Defense. Front Immunol 2019; 10:204. [PMID: 30809226 PMCID: PMC6379347 DOI: 10.3389/fimmu.2019.00204] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/23/2019] [Indexed: 12/21/2022] Open
Abstract
Interleukin 26 (IL-26) is the most recently identified member of the IL-20 cytokine subfamily, and is a novel mediator of inflammation overexpressed in activated or transformed T cells. Novel properties have recently been assigned to IL-26, owing to its non-conventional cationic, and amphipathic features. IL-26 binds to DNA released from damaged cells and, as a carrier molecule for extracellular DNA, links DNA to inflammation. This observation suggests that IL-26 may act both as a driver and an effector of inflammation, leading to the establishment of a deleterious amplification loop and, ultimately, sustained inflammation. Thus, IL-26 emerges as an important mediator in local immunity/inflammation. The dysregulated expression and extracellular DNA carrier capacity of IL-26 may have profound consequences for the chronicity of inflammation. IL-26 also exhibits direct antimicrobial properties. This review summarizes recent advances on the biology of IL-26 and discusses its roles as a novel kinocidin.
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Affiliation(s)
- Vincent Larochette
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France
| | - Charline Miot
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,CHU Angers, Département d'Immunologie et Allergologie, Angers, France
| | - Caroline Poli
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,CHU Angers, Département d'Immunologie et Allergologie, Angers, France
| | - Elodie Beaumont
- Inserm unit 1259, Medical School of the University of Tours, Tours, France
| | - Philippe Roingeard
- Inserm unit 1259, Medical School of the University of Tours, Tours, France
| | - Helmut Fickenscher
- Institute for Infection Medicine, Christian-Albrecht University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Pascale Jeannin
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,CHU Angers, Département d'Immunologie et Allergologie, Angers, France
| | - Yves Delneste
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,CHU Angers, Département d'Immunologie et Allergologie, Angers, France
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99
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Wei H, Li B, Sun A, Guo F. Interleukin-10 Family Cytokines Immunobiology and Structure. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1172:79-96. [PMID: 31628652 DOI: 10.1007/978-981-13-9367-9_4] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Interleukin (IL)-10 cytokine family includes IL-10, IL-19, IL-20, IL-22, IL-24, and IL-26, which are considered as Class 2α-helical cytokines. IL-10 is the most important cytokine in suppressing pro-inflammatory responses in all kinds of autoimmune diseases and limiting excessive immune responses. Due to protein structure homology and shared usage of receptor complexes as well as downstream signaling pathway, other IL-10 family cytokines also show indispensable functions in immune regulation, tissue homeostasis, and host defense. In this review, we focus on immune functions and structures of different cytokines in this family and try to better understand how their molecular mechanisms connect to their biological functions. The molecular details regarding their actions also provide useful information in developing candidate immune therapy reagents for a variety of diseases.
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Affiliation(s)
- Huaxing Wei
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, People's Republic of China
| | - Bofeng Li
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, People's Republic of China.
| | - Anyuan Sun
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, People's Republic of China
| | - Feng Guo
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, People's Republic of China
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100
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The Role of Platelets in Antimicrobial Host Defense. Platelets 2019. [DOI: 10.1016/b978-0-12-813456-6.00029-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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