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Rusiñol L, Puig L. A Narrative Review of the IL-18 and IL-37 Implications in the Pathogenesis of Atopic Dermatitis and Psoriasis: Prospective Treatment Targets. Int J Mol Sci 2024; 25:8437. [PMID: 39126010 PMCID: PMC11312859 DOI: 10.3390/ijms25158437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
Atopic dermatitis and psoriasis are prevalent inflammatory skin conditions that significantly impact the quality of life of patients, with diverse treatment options available. Despite advances in understanding their underlying mechanisms, recent research highlights the significance of interleukins IL-18 and IL-37, in Th1, Th2, and Th17 inflammatory responses, closely associated with the pathogenesis of psoriasis and atopic dermatitis. Hence, IL-18 and IL-37 could potentially become therapeutic targets. This narrative review synthesizes knowledge on these interleukins, their roles in atopic dermatitis and psoriasis, and emerging treatment strategies. Findings of a literature search up to 30 May 2024, underscore a research gap in IL-37-targeted therapies. Conversely, IL-18-focused treatments have demonstrated promise in adult-onset Still's Disease, warranting further exploration for their potential efficacy in psoriasis and atopic dermatitis.
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Affiliation(s)
- Lluís Rusiñol
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lluís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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2
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Alsabbagh MM. Cytokines in psoriasis: From pathogenesis to targeted therapy. Hum Immunol 2024; 85:110814. [PMID: 38768527 DOI: 10.1016/j.humimm.2024.110814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Psoriasis is a multifactorial disease that affects 0.84% of the global population and it can be associated with disabling comorbidities. As patients present with thick scaly lesions, psoriasis was long believed to be a disorder of keratinocytes. Psoriasis is now understood to be the outcome of the interaction between immunological and environmental factors in individuals with genetic predisposition. While it was initially thought to be solely mediated by cytokines of type-1 immunity, namely interferon-γ, interleukin-2, and interleukin-12 because it responds very well to cyclosporine, a reversible IL-2 inhibitor; the discovery of Th-17 cells advanced the understanding of the disease and helped the development of biological therapy. This article aims to provide a comprehensive review of the role of cytokines in psoriasis, highlighting areas of controversy and identifying the connection between cytokine imbalance and disease manifestations. It also presents the approved targeted treatments for psoriasis and those currently under investigation.
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Affiliation(s)
- Manahel Mahmood Alsabbagh
- Princess Al-Jawhara Center for Molecular Medicine and Inherited Disorders and Department of Molecular Medicine, Arabian Gulf University, Manama, Bahrain.
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3
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Narros-Fernández P, Chomanahalli Basavarajappa S, Walsh PT. Interleukin-1 family cytokines at the crossroads of microbiome regulation in barrier health and disease. FEBS J 2024; 291:1849-1869. [PMID: 37300849 DOI: 10.1111/febs.16888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/23/2023] [Accepted: 06/08/2023] [Indexed: 06/12/2023]
Abstract
Recent advances in understanding how the microbiome can influence both the physiology and the pathogenesis of disease in humans have highlighted the importance of gaining a deeper insight into the complexities of the host-microbial dialogue. In tandem with this progress, has been a greater understanding of the biological pathways which regulate both homeostasis and inflammation at barrier tissue sites, such as the skin and the gut. In this regard, the Interleukin-1 family of cytokines, which can be segregated into IL-1, IL-18 and IL-36 subfamilies, have emerged as important custodians of barrier health and immunity. With established roles as orchestrators of various inflammatory diseases in both the skin and intestine, it is now becoming clear that IL-1 family cytokine activity is not only directly influenced by external microbes, but can also play important roles in shaping the composition of the microbiome at barrier sites. This review explores the current knowledge surrounding the evidence that places these cytokines as key mediators at the interface between the microbiome and human health and disease at the skin and intestinal barrier tissues.
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Affiliation(s)
- Paloma Narros-Fernández
- Trinity Translational Medicine Institute, School of Medicine, Trinity College Dublin, Ireland
- National Children's Research Centre, CHI Crumlin, Dublin 12, Ireland
| | - Shrikanth Chomanahalli Basavarajappa
- Trinity Translational Medicine Institute, School of Medicine, Trinity College Dublin, Ireland
- National Children's Research Centre, CHI Crumlin, Dublin 12, Ireland
| | - Patrick T Walsh
- Trinity Translational Medicine Institute, School of Medicine, Trinity College Dublin, Ireland
- National Children's Research Centre, CHI Crumlin, Dublin 12, Ireland
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4
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Zhu Q, Zhao L, Ding H, Song J, Zhang Q, Yu S, Wang Y, Wang H. Interleukins and Psoriasis. J Cutan Med Surg 2024; 28:NP19-NP35. [PMID: 38314729 DOI: 10.1177/12034754241227623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Psoriasis is an immune-mediated chronic inflammatory skin disease that affects 2% to 3% of the world's population. It is widely assumed that immune cells and cytokines acting together play a crucial part in the pathophysiology of psoriasis by promoting the excessive proliferation of skin keratinocytes and inflammatory infiltration. Interleukins (ILs), as a critical component of cytokines, have been closely associated with the pathogenesis and progression of psoriasis. This review summarizes the current contribution of ILs to psoriasis and describes the role each IL performs in psoriasis. Furthermore, the paper presents the therapeutic effects and application prospects of biologics developed for ILs in clinical treatment and experiments. The study aims to further the research on ILs in the treatment of psoriasis.
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Affiliation(s)
- Qi Zhu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, China
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Linna Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Haining Ding
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingna Song
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qin Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shuhua Yu
- Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Yi Wang
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongmei Wang
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
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5
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Wu J, Zhang X, Wu D, Jin O, Gu J. Evaluation of causal associations between interleukin-18 levels and immune-mediated inflammatory diseases: a Mendelian randomization study. BMC Med Genomics 2023; 16:306. [PMID: 38031150 PMCID: PMC10685486 DOI: 10.1186/s12920-023-01744-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/19/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Altered interleukin (IL)-18 levels are associated with immune-mediated inflammatory diseases (IMIDs), but no studies have investigated their causal relationship. This study aimed to examine the causal associations between IL-18 and IMIDs. METHODS We performed a two-sample Mendelian randomization (MR) analysis. Genetic variants were selected from genome-wide association study datasets following stringent assessments. We then used these variants as instrumental variables to estimate the causal effects of IL-18 levels on the risk of developing five common IMIDs: rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel disease (IBD), ankylosing spondylitis (AS), and psoriasis. We used the inverse variance-weighted (IVW) method as the primary analysis, with sensitivity analyses performed to avoid potential bias. Reverse-direction MR analyses were performed to rule out the possibility of reverse associations. RESULTS We found that genetically determined higher circulating IL-18 levels were causally associated with a higher risk for SLE (PIVW = 0.009; OR, 1.214; 95% CI, 1.049 - 1.404) and IBD (PIVW < 0.001; OR, 1.142; 95% CI, 1.062 - 1.228), but found no significant associations of IL-18 with RA (PIVW = 0.496; OR, 1.044; 95% CI, 0.923 - 1.180), AS (PIVW = 0.021; OR, 1.181; 95% CI, 1.025 - 1.361), or psoriasis (PIVW = 0.232; OR, 1.198; 95% CI, 0.891 - 1.611). In the reverse direction, no causal relationship existed between SLE or IBD and IL-18 levels. Globally, sensitivity studies using alternative MR methods supported the results that were robust and reliable. The Cochran's Q test, MR-Egger intercept, and MR-Pleiotropy RESidual Sum and Outlier excluded the influence of heterogeneity, horizontal pleiotropy, and outliers. CONCLUSIONS We have demonstrated that elevated IL-18 levels increase the risk of SLE and IBD but not RA, AS, or psoriasis. The results enhanced our understanding of IL-18 in the pathology of IMIDs.
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Affiliation(s)
- Jialing Wu
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Xi Zhang
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Dongze Wu
- Department of Rheumatology and Immunology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ou Jin
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China.
| | - Jieruo Gu
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China.
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6
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Frost B, Schmidt M, Klein B, Loeffler-Wirth H, Krohn K, Reidenbach T, Binder H, Stubenvoll A, Simon JC, Saalbach A, Kunz M. Single-cell transcriptomics reveals prominent expression of IL-14, IL-18, and IL-32 in psoriasis. Eur J Immunol 2023; 53:e2250354. [PMID: 37540729 DOI: 10.1002/eji.202250354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 06/21/2023] [Accepted: 08/03/2023] [Indexed: 08/06/2023]
Abstract
RATIONALE Psoriasis is a chronic inflammatory skin disease involving different cytokines and chemokines. OBJECTIVES Here we use single-cell transcriptomic analyses to identify relevant immune cell and nonimmune cell populations for an in-depth characterization of cell types and inflammatory mediators in this disease. METHODS Psoriasis skin lesions of eight patients are analyzed using single-cell technology. Data are further validated by in situ hybridization (ISH) of human tissues, serum analyses of human samples and tissues of a murine model of psoriasis, and by in vitro cell culture experiments. RESULTS Several different immune-activated cell types with particular cytokine patterns are identified such as keratinocytes, T-helper cells, dendritic cells, macrophages, and fibroblasts. Apart from well-known factors, IL-14 (TXLNA), IL-18, and IL-32 are identified with prominent expression in individual cell types in psoriasis. The percentage of inflammatory cellular subtypes expressing IL-14, IL-18, and IL-32 was significantly higher in psoriatic skin compared with healthy control skin. These findings were confirmed by ISH of human skin samples, in a murine model of psoriasis, in human serum samples, and in in vitro experiments. CONCLUSIONS Taken together, we provide a differentiated view of psoriasis immune-cell phenotypes that support the role of IL-14, IL-18, and IL-32 in psoriasis pathogenesis.
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Affiliation(s)
- Bennet Frost
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Maria Schmidt
- Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany
| | - Benjamin Klein
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Henry Loeffler-Wirth
- Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany
| | - Knuth Krohn
- Medical Faculty, Center for DNA Technologies, University of Leipzig, Leipzig, Germany
| | - Timo Reidenbach
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Hans Binder
- Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany
| | - Antonia Stubenvoll
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Jan C Simon
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Anja Saalbach
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
| | - Manfred Kunz
- Department of Dermatology, Venereology and Allergology, University of Leipzig Medical Center, Leipzig, Germany
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7
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Akazawa H, Nozaki Y, Yamazawa H, Ishimura K, Ashida C, Okada A, Kinoshita K, Matsumura I. Blockade of IL-18Rα-mediated signaling pathway exacerbates neutrophil infiltration in imiquimod-induced psoriasis murine model. Front Med (Lausanne) 2023; 10:1293132. [PMID: 37964882 PMCID: PMC10641785 DOI: 10.3389/fmed.2023.1293132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
Psoriasis is an immune-mediated inflammatory disease of the skin, which is characterized by epidermal hyperkeratosis and neutrophil infiltration. The interleukin (IL)-17/IL-23 pathway and associated cytokines play major roles in the pathogenesis and exacerbation of psoriasis. The IL-18/IL-18 receptor (R) α signaling pathway is important for Th1 cytokine production and differentiation of Th1 cells; however, its role in the pathogenesis of psoriasis remains unknown. In this study, we investigated the effect of the IL-18Rα-mediated signaling pathway in the pathogenesis of psoriasis in Il18ra-deficient mice (Il18ra-/-) and wild-type imiquimod (IMQ)-induced psoriatic dermatitis model mice. Blocking this pathway exacerbated IMQ-induced psoriatic skin inflammation. Il18ra deficiency led to significant increases in the levels of IL-1β, IL-6, IL-8, IL-17A, IL-23, and chemokine (C-X-C motif) ligand 2 in skin lesions. Gr1-positive cells highly infiltrated psoriatic skin lesions in Il18ra-/- mice compared to those in wild-type mice. Citrullinated histone H3-positive area was relatively broad in Il18ra-/- mice. These results suggest that IL-18Rα-mediated signaling pathways may inhibit psoriatic skin inflammation by regulating infiltration and activation of neutrophil and other innate immune cells.
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Affiliation(s)
- Hiroki Akazawa
- Department of Hematology and Rheumatology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Yuji Nozaki
- Department of Hematology and Rheumatology, Kindai University Faculty of Medicine, Osakasayama, Japan
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8
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Wang X, Wang L, Wen X, Zhang L, Jiang X, He G. Interleukin-18 and IL-18BP in inflammatory dermatological diseases. Front Immunol 2023; 14:955369. [PMID: 36742296 PMCID: PMC9889989 DOI: 10.3389/fimmu.2023.955369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023] Open
Abstract
Interleukin (IL)-18, an interferon-γ inducer, belongs to the IL-1 family of pleiotropic pro-inflammatory factors, and IL-18 binding protein (IL-18BP) is a native antagonist of IL-18 in vivo, regulating its activity. Moreover, IL-18 exerts an influential function in host innate and adaptive immunity, and IL-18BP has elevated levels of interferon-γ in diverse cells, suggesting that IL-18BP is a negative feedback inhibitor of IL-18-mediated immunity. Similar to IL-1β, the IL-18 cytokine is produced as an indolent precursor that requires further processing into an active cytokine by caspase-1 and mediating downstream signaling pathways through MyD88. IL-18 has been implicated to play a role in psoriasis, atopic dermatitis, rosacea, and bullous pemphigoid in human inflammatory skin diseases. Currently, IL-18BP is less explored in treating inflammatory skin diseases, while IL-18BP is being tested in clinical trials for other diseases. Thereby, IL-18BP is a prospective therapeutic target.
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Affiliation(s)
- Xiaoyun Wang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lian Wang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Wen
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Lu Zhang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Xian Jiang, ; Gu He,
| | - Gu He
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China,Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Xian Jiang, ; Gu He,
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9
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Zhang Y, Xu X, Cheng H, Zhou F. AIM2 and Psoriasis. Front Immunol 2023; 14:1085448. [PMID: 36742336 PMCID: PMC9889639 DOI: 10.3389/fimmu.2023.1085448] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/04/2023] [Indexed: 01/20/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease occurring worldwide, with multiple systemic complications, which seriously affect the quality of life and physical and mental health of patients. The pathogenesis of psoriasis is related to the environment, genetics, epigenetics, and dysregulation of immune cells such as T cells, dendritic cells (DCs), and nonimmune cells such as keratinocytes. Absent in melanoma 2 (AIM2), a susceptibility gene locus for psoriasis, has been strongly linked to the genetic and epigenetic aspects of psoriasis and increased in expression in psoriatic keratinocytes. AIM2 was found to be activated in an inflammasome-dependent way to release IL-1β and IL-18 to mediate inflammation, and to participate in immune regulation in psoriasis, or in an inflammasome-independent way by regulating the function of regulatory T(Treg) cells or programming cell death in keratinocytes as well as controlling the proliferative state of different cells. AIM2 may also play a role in the recurrence of psoriasis by trained immunity. In this review, we will elaborate on the characteristics of AIM2 and how AIM2 mediates the development of psoriasis.
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Affiliation(s)
- Yuxi Zhang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China.,Institute of Dermatology, Anhui Medical University, Hefei, Anhui, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Xiaoqing Xu
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China.,Institute of Dermatology, Anhui Medical University, Hefei, Anhui, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Hui Cheng
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China.,Institute of Dermatology, Anhui Medical University, Hefei, Anhui, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Fusheng Zhou
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China.,Institute of Dermatology, Anhui Medical University, Hefei, Anhui, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
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10
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Wang ZH, Feng Y, Hu Q, Wang XL, Zhang L, Liu TT, Zhang JT, Yang X, Fu QY, Fu DN, Hu J, Liu T. Keratinocyte TLR2 and TLR7 contribute to chronic itch through pruritic cytokines and chemokines in mice. J Cell Physiol 2023; 238:257-273. [PMID: 36436135 DOI: 10.1002/jcp.30923] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/28/2022]
Abstract
Although neuronal Toll-like receptors (TLRs) (e.g., TLR2, TLR3, and TLR7) have been implicated in itch sensation, the roles of keratinocyte TLRs in chronic itch are elusive. Herein, we evaluated the roles of keratinocyte TLR2 and TLR7 in chronic itch under dry skin and psoriasis conditions, which was induced by either acetone-ether-water treatment or 5% imiquimod cream in mice, respectively. We found that TLR2 and TLR7 signaling were significantly upregulated in dry skin and psoriatic skin in mice. Chronic itch and epidermal hyperplasia induced by dry skin or psoriasis were comparably reduced in TLR2 and TLR7 knockout mice. In the dry skin model, the enhanced messenger RNA (mRNA) expression levels of pruritic CXCL1/2, IL-31, IL-33, ST2, IL-6, IL-17A, TNF-α, and IFN-γ were inhibited in TLR2-/- mice, while CXCL2, IL-31, and IL-6 were inhibited in TLR7-/- mice. In psoriasis model, the enhanced mRNA expression levels of pruritic CXCL1/2, IL-31, IL-33, ST2, IL-6, and TNF-α were inhibited in TLR2-/- mice, while CXCL1/2, IL-31, IL-33, ST2, IL-6, IL-17A, and TNF-α were inhibited in TLR7-/- mice. Incubation with Staphylococcus aureus (S. aureus) peptidoglycan (PGN-SA) (a TLR2 agonist), imiquimod (a TLR7 agonist), and miR142-3p (a putative TLR7 agonist) were sufficient to upregulate the expression of pruritic cytokines or chemokines in cultured keratinocyte HaCaT cells. Finally, pharmacological blockade of C-X-C Motif Chemokine Receptor 1/2 and high mobility group box protein 1 dose-dependently attenuated acute and chronic itch in mice. Together, these results indicate that keratinocyte TLR2 and TLR7 signaling pathways are distinctly involved in the pathogenesis of chronic itch.
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Affiliation(s)
- Zhi-Hong Wang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Yu Feng
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qingfang Hu
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xue-Long Wang
- Department of Thoracic Surgery, Capital Medical University Electric Power Teaching Hospital Beijing, Beijing, China
| | - Li Zhang
- Department of Anesthesiology, The First People's Hospital of Kunshan Affiliated with Jiangsu University, Kunshan, China
| | - Teng-Teng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Jiang-Tao Zhang
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xiaohua Yang
- The Affiliated Haian Hospital of Nantong University, Haian, China
| | - Qing-Yue Fu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Dan-Ni Fu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Ji Hu
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Tong Liu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China.,College of Life Sciences, Yanan University, Yanan, China.,Suzhou Key Laboratory of Intelligent Medicine and Equipment, Soochow University, Suzhou, China
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11
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Iznardo H, Puig L. IL-1 Family Cytokines in Inflammatory Dermatoses: Pathogenetic Role and Potential Therapeutic Implications. Int J Mol Sci 2022; 23:ijms23169479. [PMID: 36012744 PMCID: PMC9409147 DOI: 10.3390/ijms23169479] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 12/15/2022] Open
Abstract
The interleukin-1 (IL-1) family is involved in the correct functioning and regulation of the innate immune system, linking innate and adaptative immune responses. This complex family is composed by several cytokines, receptors, and co-receptors, all working in a balanced way to maintain homeostasis. Dysregulation of these processes results in tissue inflammation and is involved in the pathogenesis of common inflammatory dermatoses such as psoriasis, hidradenitis suppurativa, and atopic dermatitis. Therefore, therapeutic targeting of IL-1 pathways has been studied, and several monoclonal antibodies are currently being assessed in clinical trials. So far, promising results have been obtained with anti-IL-36R spesolimab and imsidolimab in pustular psoriasis, and their efficacy is being tested in other conditions.
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Affiliation(s)
- Helena Iznardo
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, 08041 Barcelona, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
| | - Luís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, 08041 Barcelona, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
- Correspondence:
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12
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Chen PK, Wey SJ, Chen DY. Interleukin-18: a biomarker with therapeutic potential in adult-onset Still's disease. Expert Rev Clin Immunol 2022; 18:823-833. [PMID: 35771972 DOI: 10.1080/1744666x.2022.2096592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Adult-onset Still's disease (AOSD) is an autoinflammatory disease driven by the innate immune response. Given the ambiguity in clinical presentation and lack of specific diagnostic biomarkers, AOSD diagnosis is usually delayed in the early stage. Because AOSD is a rare disease with clinical heterogeneity, there is no consensus on its treatment currently. This review summarizes the current research evidence regarding the pathogenic role and the diagnostic or therapeutic potential of interleukin (IL)-18 in AOSD. AREAS COVERED We searched the MEDLINE database using the PubMed interface and reviewed English-language literature from 1971 to 2022. This review focusing on IL-18 discusses its pathogenic role and clinical implications in AOSD. EXPERT OPINION NLRP3-inflammasome activation with IL-18 overproduction plays a pathogenic role in AOSD. IL-18 is closely linked to the clinical manifestations and disease activity of AOSD and may be a diagnostic biomarker. Given its pathogenic role in AOSD, IL-18 could become a potential therapeutic target. IL-18 binding protein (IL-18BP) negatively regulates the biological activity of IL-18 by inhibiting IL-18 signaling, and a clinical trial revealed that IL-18BP (Tadekinig alfa) treatment was well-tolerated and effective for AOSD. Recently, monoclonal antibodies against IL-18 have been under evaluation in a phase 1b trial.
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Affiliation(s)
- Po-Ku Chen
- Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, Taichung, Taiwan.,Translational Medicine Laboratory, Rheumatology and Immunology Center, Taichung, Taiwan
| | - Shiow-Jiuan Wey
- Division of Dermatology, Chung Shan Medical University Hospital, Taichung, Taiwan.,Institute of Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Der-Yuan Chen
- Rheumatology and Immunology Center, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, Taichung, Taiwan.,Translational Medicine Laboratory, Rheumatology and Immunology Center, Taichung, Taiwan.,Institute of Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan.,D. Program in Translational Medicine and Rong Hsing Research Center for Translational Medicine, National Chung Hsing UniversityPh., Taichung, Taiwan
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13
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Matsui Y, Takemura N, Shirasaki Y, Takahama M, Noguchi Y, Ikoma K, Pan Y, Nishida S, Taura M, Nakayama A, Funatsu T, Misawa T, Harada Y, Sunazuka T, Saitoh T. Nanaomycin E inhibits NLRP3 inflammasome activation by preventing mitochondrial dysfunction. Int Immunol 2022; 34:505-518. [PMID: 35759801 DOI: 10.1093/intimm/dxac028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
The Nod-like receptor family pyrin domain containing 3 (NLRP3) is a cytosolic innate immune receptor that senses organelle dysfunction induced by various stimuli, such as infectious, environmental, metabolic, and drug stresses. Upon activation, NLRP3 forms an inflammasome with its adaptor protein apoptosis-associated speck-like protein, containing a caspase recruitment domain (ASC) and caspase-1, to trigger the release of inflammatory cytokines. The development of effective anti-inflammatory drugs targeting the NLRP3 inflammasome is in high demand as its aberrant activation often causes inflammatory diseases. Here, we found that nanaomycin A (NNM-A), a quinone-based antibiotic isolated from Streptomyces, effectively inhibited NLRP3 inflammasome-mediated inflammatory responses induced by imidazoquinolines, including imiquimod. Interestingly, its epoxy derivative nanaomycin E (NNM-E) showed a comparable inhibitory effect against the NLRP3 inflammasome-induced release of interleukin (IL)-1β and IL-18 from macrophages, with a much lower toxicity than NNM-A. NNM-E inhibited ASC oligomerization and caspase-1 cleavage, both of which are hallmarks of NLRP3 inflammasome activation. NNM-E reduced mitochondrial damage and the production of reactive oxygen species, thereby preventing the activation of the NLRP3 inflammasome. NNM-E treatment markedly alleviated psoriasis-like skin inflammation induced by imiquimod. Collectively, NNM-E inhibits NLRP3 inflammasome activation by preventing mitochondrial dysfunction with little toxicity and showed an anti-inflammatory effect in vivo. Thus, NNM-E could be a potential lead compound for developing effective and safe anti-inflammatory agents for the treatment of NLRP3 inflammasome-mediated inflammatory diseases.
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Affiliation(s)
- Yudai Matsui
- Laboratory of Bioresponse Regulation, School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Naoki Takemura
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Yoshitaka Shirasaki
- Laboratory of Bio-Analytical Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Michihiro Takahama
- Division of Inflammation Biology, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan.,Pritzker School of Molecular Engineering, the University of Chicago, Chicago, IL, USA
| | - Yoshihiko Noguchi
- Laboratory of Bioorganic Chemistry, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Kenta Ikoma
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Yixi Pan
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Shuhei Nishida
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Manabu Taura
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Akiyoshi Nakayama
- Division of Inflammation Biology, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan.,Department of Integrative Physiology and Bio-Nano Medicine, National Defense Medical College, Saitama, Japan
| | - Takashi Funatsu
- Laboratory of Bio-Analytical Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Takuma Misawa
- Laboratory for Immune Cell Systems, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Yoshie Harada
- Laboratory for Nanobiology, Institute for Protein Research, Osaka University, Osaka, Japan.,Center for Quantum Information and Quantum Biology, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Toshiaki Sunazuka
- Laboratory of Bioorganic Chemistry, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Tatsuya Saitoh
- Laboratory of Bioresponse Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Division of Inflammation Biology, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan
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14
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Rodrigues de Souza I, Savio de Araujo-Souza P, Morais Leme D. Genetic variants affecting chemical mediated skin immunotoxicity. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2022; 25:43-95. [PMID: 34979876 DOI: 10.1080/10937404.2021.2013372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The skin is an immune-competent organ and this function may be impaired by exposure to chemicals, which may ultimately result in immune-mediated dermal disorders. Interindividual variability to chemical-induced skin immune reactions is associated with intrinsic individual characteristics and their genomes. In the last 30-40 years, several genes influencing susceptibility to skin immune reactions were identified. The aim of this review is to provide information regarding common genetic variations affecting skin immunotoxicity. The polymorphisms selected for this review are related to xenobiotic-metabolizing enzymes (CYPA1 and CYPB1 genes), antioxidant defense (GSTM1, GSTT1, and GSTP1 genes), aryl hydrocarbon receptor signaling pathway (AHR and ARNT genes), skin barrier function transepidermal water loss (FLG, CASP14, and SPINK5 genes), inflammation (TNF, IL10, IL6, IL18, IL31, and TSLP genes), major histocompatibility complex (MHC) and neuroendocrine system peptides (CALCA, TRPV1, ACE genes). These genes present variants associated with skin immune responses and diseases, as well as variants associated with protecting skin immune homeostasis following chemical exposure. The molecular and association studies focusing on these genetic variants may elucidate their functional consequences and contribution in the susceptibility to skin immunotoxicity. Providing information on how genetic variations affect the skin immune system may reduce uncertainties in estimating chemical hazards/risks for human health in the future.
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Affiliation(s)
| | | | - Daniela Morais Leme
- Graduate Program in Genetics, Department of Genetics, Federal University of Paraná (UFPR), Curitiba, Brazil
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, Araraquara, Brazil
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15
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Harel M, Fauteux-Daniel S, Girard-Guyonvarc'h C, Gabay C. Balance between Interleukin-18 and Interleukin-18 binding protein in auto-inflammatory diseases. Cytokine 2022; 150:155781. [DOI: 10.1016/j.cyto.2021.155781] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 12/03/2021] [Indexed: 02/07/2023]
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16
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Bonek K, Kuca-Warnawin E, Kornatka A, Zielińska A, Wisłowska M, Kontny E, Głuszko P. Associations of IL-18 with Altered Cardiovascular Risk Profile in Psoriatic Arthritis and Ankylosing Spondylitis. J Clin Med 2022; 11:jcm11030766. [PMID: 35160217 PMCID: PMC8836492 DOI: 10.3390/jcm11030766] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 12/02/2022] Open
Abstract
Objective: To investigate the associations of IL-18 serum levels with serum lipids, cardiovascular risk, and disease activity in patients with ankylosing spondylitis (AS) and psoriatic arthritis (PsA) with axial (axPsA) and peripheral (perPsA) joint involvement. Methods: 155 adult patients (PsA 61/AS 94) were enrolled in the study. Standard disease activity indices, BASDAI, and ASDAS, were calculated for AS and PsA and DAPSA for PsA. Sera from peripheral blood samples were obtained after night fasting. Serum concentrations of cytokines (IL-18, IL-17) were measured by ELISA, while lipid profile with total cholesterol (TC), triglycerides (TG), low-density cholesterol-(LDL), high-density cholesterol (HDL), and C-reactive protein (CRP) concentrations were determined using routine procedures. The atherogenic index was calculated using the standard formula AI = TC/HDL. Results: Patients with PsA and peripheral joint involvement (perPsA) had significantly higher IL-18 serum levels than axial PsA and AS patients (medians 160 vs. 116 vs. 80 pg/mL). In patients with PsA and in the subgroup with PsA+ ischemic heart disease (IHD), IL-18 positively correlated with atherogenic index (AI) (rho = 0.46 and rho = 0.67, respectively) and TG serum concentrations (rho = 0.4 and rho = 0.675), while negatively with HDL levels (rho = −0.37 and rho = −0.608). In PsA + IHD subgroup IL-18 serum levels correlated positively also with disease activity (DAPSA) (rho = 0.613). Importantly, in patients with perPsA, characterized by the highest IL-18 serum levels, cardiovascular risk, and frequency of both hypertriglyceridemia and IHD, positive correlations between IL-18 and IL-17 (rho = 0.47, p = 0.002), TG (rho = 0.45 p = 0.01) levels and AI (rho = 0.63 p = 0.021) were found. Whereas linear regression models revealed that IL-17, TG concentrations and the tender joint count had an impact on IL-18 Conclusions: We confirmed that patients with perPsA are characterized by a more pronounced proinflammatory and proatherogenic cardiovascular risk profile than patients with axPsA and AS. Importantly our study indicates that in PsA, but not in AS, elevated serum concentration of IL-18 is associated with higher disease activity and proatherogenic lipid profile, leading to a higher cardiovascular risk. Thus, our results point out IL-18 as a critical contributor in these pathological processes and possible therapeutic targets.
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Affiliation(s)
- Krzysztof Bonek
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.Z.); (M.W.); (P.G.)
- Correspondence:
| | - Ewa Kuca-Warnawin
- Department of Pathophysiology and Immunology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.K.-W.); (A.K.); (E.K.)
| | - Anna Kornatka
- Department of Pathophysiology and Immunology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.K.-W.); (A.K.); (E.K.)
| | - Agnieszka Zielińska
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.Z.); (M.W.); (P.G.)
| | - Małgorzata Wisłowska
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.Z.); (M.W.); (P.G.)
| | - Ewa Kontny
- Department of Pathophysiology and Immunology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.K.-W.); (A.K.); (E.K.)
| | - Piotr Głuszko
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.Z.); (M.W.); (P.G.)
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17
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Woźniak E, Owczarczyk-Saczonek A, Placek W. Psychological Stress, Mast Cells, and Psoriasis-Is There Any Relationship? Int J Mol Sci 2021; 22:ijms222413252. [PMID: 34948049 PMCID: PMC8705845 DOI: 10.3390/ijms222413252] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Psoriasis vulgaris is a common inflammatory skin disease with still unknown pathogenesis. In recent years, genetic and environmental factors have been mentioned as the main causes. Among environmental factors, many researchers are trying to investigate the role of mental health and its importance in the development of many diseases. In the pathophysiology of psoriasis, the role of the interaction between the nervous, endocrine, and immune systems are often emphasized. So far, no one has clearly indicated where the pathological process begins. One of the hypotheses is that chronic stress influences the formation of hormonal changes (lowering the systemic cortisol level), which favors the processes of autoimmunity. In inflammatory skin conditions, mast cells (MCs) are localized close to blood vessels and peripheral nerves, where they probably play an important role in the response to environmental stimuli and emotional stress. They are usually connected with a fast immune response, not only in allergies but also a protective response to microbial antigens. Among many cells of the immune system, MCs have receptors for the hormones of the hypothalamic-pituitary-adrenal (HPA) axis on their surface. In this review, we will try to take a closer look at the role of MCs in the pathophysiology of psoriasis. This knowledge may give the opportunity to search for therapeutic solutions.
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18
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Valenzuela F, Fernández J, Jiménez C, Cavagnola D, Mancilla JF, Astorga J, Hernández M, Fernández A. Identification of IL-18 and Soluble Cell Adhesion Molecules in the Gingival Crevicular Fluid as Novel Biomarkers of Psoriasis. Life (Basel) 2021; 11:life11101000. [PMID: 34685372 PMCID: PMC8538479 DOI: 10.3390/life11101000] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/21/2022] Open
Abstract
Psoriasis is a chronic immunoinflammatory skin disease. Although its diagnosis is clinical, differences in the appearance and severity of lesions pose a challenge for clinicians worldwide. The use of accessible biomarkers for psoriasis could aid in the early diagnosis and treatment of the disease. To date, evidence on the analysis of gingival crevicular fluid (GCF) molecules as novel, accessible, and reliable biomarkers for psoriasis is limited. This cross-sectional study compared the GCF levels of IL-18, soluble (s)ICAM-1, and sE-selectin in psoriatic patients (n = 42) and healthy controls (n = 39). Individuals with psoriasis not undergoing treatment and healthy individuals were included independent of periodontal status. GCF samples were collected, and a multiplex bead immunoassay was performed to quantify the levels of the target molecules. Psoriatic patients presented higher concentrations of IL-18 and lower concentrations of sE-selectin compared to controls (p < 0.05). No differences were found in the levels of sICAM-1 between the two groups (p > 0.05). Psoriasis was associated with IL-18 and E-selectin levels regardless of periodontal status, age, and smoking habit (p < 0.05). The areas under the receiver operating characteristic curve (ROC) for IL-18 and sE-selectin were 0.77 and 0.68, respectively. In conclusion, IL-18 and sE-selectin levels in the GCF could be promising biomarker for psoriasis.
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Affiliation(s)
- Fernando Valenzuela
- Department of Dermatology, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
- Centro Internacional de Estudios Clínicos, Probity Medical Research, Santiago 8420383, Chile;
- Correspondence: (F.V.); (A.F.); Tel.: +56-2-29788173 (F.V.); +56-2-2661-5834 (A.F.)
| | - Javier Fernández
- Centro Internacional de Estudios Clínicos, Probity Medical Research, Santiago 8420383, Chile;
- Dermatology Unit, San José Hospital, Santiago 8380419, Chile
| | - Constanza Jiménez
- Department of Oral Pathology, Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.C.); (J.F.M.)
| | - Daniela Cavagnola
- Department of Oral Pathology, Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.C.); (J.F.M.)
| | - Juan Felipe Mancilla
- Department of Oral Pathology, Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.C.); (J.F.M.)
| | - Jessica Astorga
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (J.A.); (M.H.)
| | - Marcela Hernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (J.A.); (M.H.)
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile
| | - Alejandra Fernández
- Department of Oral Pathology, Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.C.); (J.F.M.)
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (J.A.); (M.H.)
- Correspondence: (F.V.); (A.F.); Tel.: +56-2-29788173 (F.V.); +56-2-2661-5834 (A.F.)
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19
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Iznardo H, Puig L. The interleukin-1 family cytokines in psoriasis: pathogenetic role and therapeutic perspectives. Expert Rev Clin Immunol 2021; 17:187-199. [PMID: 33538202 DOI: 10.1080/1744666x.2021.1886081] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: IL-1 family cytokines play an important role in the innate immune system and their uncontrolled activation and expression can initiate a pathologic inflammatory response. Their role in psoriasis, pustular psoriasis, and psoriatic arthritis has been studied, and they offer potential interest as therapeutic targets.Areas covered: This review focuses on the role that interleukin (IL)-1 family cytokines play in psoriasis pathogenesis, with a special focus on pustular psoriasis, and how these cytokines can be used as therapeutic targets. Using PubMed, we review the literature for articles related to IL-1 family cytokines and psoriasis, focusing on pustular psoriasis, and including pathogenesis, genetics and therapeutic targets.Expert opinion: IL-1 and IL-36 cytokines act as critical drivers of the autoinflammatory responses involved in pustular psoriasis. Studies on the specific role of each IL-1 cytokine are needed, as well as of their regulatory pathways. Targeting of IL-1 family cytokines has been used in pustular psoriasis, with IL-1 and IL-36 R blockade showing promising results.
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Affiliation(s)
- Helena Iznardo
- Department of Dermatology, Hospital De La Santa Creu I Sant Pau, Barcelona, Spain.,Department of Medicine, School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lluís Puig
- Department of Dermatology, Hospital De La Santa Creu I Sant Pau, Barcelona, Spain.,Department of Medicine, School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
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20
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Christophers E, van de Kerkhof PCM. Severity, heterogeneity and systemic inflammation in psoriasis. J Eur Acad Dermatol Venereol 2019; 33:643-647. [PMID: 30924245 DOI: 10.1111/jdv.15339] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 09/19/2018] [Indexed: 12/25/2022]
Abstract
Psoriasis may express as active severe disease or as mild stable disease. In particular, patients with active severe disease present systemic involvement, including comorbidities and increased values of parameters reflecting an active state of innate immunity. In contrast, patients with mild stable disease show a dominancy of acquired immunity. In this review article, we report the clinical aspects of disease manifestations of both active and quiescent psoriasis as well as the immunological aspects, as well as the impact on antimicrobial resistance. The activity of psoriasis is not captured in the present outcome measures for severity assessment. The present review suggests that incorporating disease activity may be important in the assessment of the efficacy of treatments.
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Affiliation(s)
- E Christophers
- Department of Dermatology, SH University Clinics, Kiel, Germany
| | - P C M van de Kerkhof
- Department of Dermatology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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21
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Interleukin-18 exacerbates skin inflammation and affects microabscesses and scale formation in a mouse model of imiquimod-induced psoriasis. Chin Med J (Engl) 2019; 132:690-698. [PMID: 30741833 PMCID: PMC6416030 DOI: 10.1097/cm9.0000000000000140] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: As a potent pro-inflammatory cytokine of the interleukin (IL)-1 family, IL-18 was elevated in early active and progressive plaque-type psoriatic lesions and that serum or plasma levels of IL-18 correlated with the Psoriasis Area and Severity Index (PASI). Although results from previous studies have established that IL-18 may aggravate psoriatic inflammation, the mechanisms of this process remain unknown. In this study, IL-18 knock out (KO) mice and wild-type (WT) mice were used to investigate the effects of IL-18 within a mouse model of psoriasis. Methods: WT and IL-18 KO mice were divided into four groups, including imiquimod (IMQ)-treated IL-18 KO group (n = 11) and WT group (n = 13) as well as their respectively gene-matched control mice (receiving vaseline; n = 12). PASI scores were used to evaluate psoriatic lesions in IMQ-treated mice. Pathological features and dermal cellular infiltration were investigated by hematoxylin and eosin staining. The levels of psoriasis-related cytokines including IL-23, IL-17, IL-12, IL-1β, IFNγ, IL-15, IL-27, and IL-4 were tested by real-time polymerase chain reaction (PCR). The protein level of IL-1β, IL-27, CXCL1, and Ly6 g were investigated by immunohistochemistry (IHC). Results: Acanthosis (98.46 ± 14.12 vs. 222.68 ± 71.10 μm, P < 0.01) and dermal cell infiltration (572.25 ± 47.45 vs. 762.47 ± 59.59 cells/field, P < 0.01) were significantly milder in IMQ-induced IL-18 KO mice compared with that in WT mice. IMQ-induced IL-18 KO mice manifested larger areas of Munro microabscesses (11,467.83 ± 5112.09 vs. 4093.19 ± 2591.88 μm2, P < 0.01) and scales (100,935.24 ± 41,167.77 vs. 41,604.41 ± 14,184.10 μm2, P < 0.01) as compared with WT mice. In skin lesions of IL-18 KO mice, the expressions of IL-1β, IL-4, and IL-27 were all significantly upregulated but IL-17 was decreased. Histologically, strong positive signals of Ly6g were observed within the epidermis of IL-18 KO mice but expressions of CXCL1 were decreased. Conclusions: IL-18 may exacerbate prominent inflammation and influence pathological features in IMQ-induced mouse model of psoriasis. IL-18 may upregulate pro-inflammatory cytokines and reduce protective cytokines, thus aggravating psoriatic inflammation. In addition, IL-18 may be involved in the formation of Munro microabscesses and scales.
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22
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Chen JM, Li QW, Jiang GX, Liu JS, Cheng Q. IL-18 induced IL-23/IL-17 expression impairs Aβ clearance in cultured THP-1 and BV2 cells. Cytokine 2019; 119:113-118. [PMID: 30903865 DOI: 10.1016/j.cyto.2019.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/28/2019] [Accepted: 03/11/2019] [Indexed: 02/06/2023]
Abstract
Recent studies have provided overwhelming evidence of the involvement of microglia-related molecular networks in the pathogenesis of Alzheimer's diseases (AD). The potential involvement of pro-inflammatory cytokines interleukin (IL)-18, IL-23 and IL-17 on amyloid (Aβ) clearance is still unclear. In this study, we addressed that there might be a net relationship among IL-18, IL-23, and IL-17 and they can affect Aβ clearance in cultured macrophage/microglia cells. In human macrophage cell line THP-1, Aβ42 incubation could increase the expression of IL-18, IL-23 and IL-17 in a concentration dependent manner. THP-1 cell could clear Aβ42 in the culture medium time-dependently, but its capacity of Aβ clearance was impaired by IL-18, IL-23 or IL-17 treatment. Similarly, the capacity of the microglia cell line BV2 to clear Aβ42 was impaired by IL-18, IL-23 or IL-17 treatment. In co-cultures of BV2 with APP/PS1 neuron, Aβ was efficiently cleared by BV2 cell, but Aβ clearance was impaired by IL-18, IL-23 or IL-17 treatment. The effects of IL-18, IL-23 and IL-17 could be blocked by their corresponding neutralizing antibodies. In addition, the inhibitory effects of IL-18 were blocked by IL-23 or IL-17 neutralizing antibodies while the inhibitory effects of IL-23 were blocked by IL-17 neutralizing antibodies. Our study provides evidences showing that amyloid induced IL-18/IL-23/IL-17 axis could impair macrophage and microglia-mediated Aβ clearance. Thus, IL-18/IL-23/IL-17 axis might be a therapeutic target in AD.
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Affiliation(s)
- Jin-Mei Chen
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University, 197 Ruijin No. 2 Road, Shanghai 200025, China; Department of Neurology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Discipline Construction Research Center of China Hospital Development Institute, Shanghai Jiao Tong University, 280 Mohe Road, Shanghai 201999, China
| | - Qing-Wei Li
- Department of Psychiatry, Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai 200065, China; Shanghai Mental Health Central, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai 200013, China
| | - Guo-Xin Jiang
- Department of Learning, Informatics, Management and Ethics, Karolinska Institute, Stockholm 17177, Sweden
| | - Jian-Sheng Liu
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Discipline Construction Research Center of China Hospital Development Institute, Shanghai Jiao Tong University, 280 Mohe Road, Shanghai 201999, China
| | - Qi Cheng
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University, 197 Ruijin No. 2 Road, Shanghai 200025, China.
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Aira LE, Gonçalves D, Bossowski JP, Rubio-Patiño C, Chiche J, Paul-Bellon R, Mondragón L, Gesson M, Lecucq-Ottavi P, Obba S, Colosetti P, Luciano F, Bailly-Maitre B, Boyer L, Jacquel A, Robert G, Ricci JE, Ortonne JP, Passeron T, Lacour JP, Auberger P, Marchetti S. Caspase 1/11 Deficiency or Pharmacological Inhibition Mitigates Psoriasis-Like Phenotype in Mice. J Invest Dermatol 2018; 139:1306-1317. [PMID: 30571969 DOI: 10.1016/j.jid.2018.11.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 11/20/2018] [Accepted: 11/27/2018] [Indexed: 12/15/2022]
Abstract
Inflammatory caspases, activated within the inflammasome, are responsible for the maturation and secretion of IL-1β/IL-18. Although their expression in psoriasis was shown several years ago, little is known about the role of inflammatory caspases in the context of psoriasis. Here, we confirmed that caspases 1, 4, and 5 are activated in lesional skin from psoriasis patients. We showed in three psoriasis-like models that inflammatory caspases are activated, and accordingly, caspase 1/11 invalidation or pharmacological inhibition by Ac-YVAD-CMK (i.e., Ac-Tyr-Val-Ala-Asp-chloromethylketone) injection induced a decrease in ear thickness, erythema, scaling, inflammatory cytokine expression, and immune cell infiltration in mice. We observed that keratinocytes were primed to secrete IL-1β when cultured in conditions mimicking psoriasis. Generation of chimeric mice by bone marrow transplantation was carried out to decipher the respective contribution of keratinocytes and/or immune cells in the activation of inflammatory caspases during psoriasis-like inflammatory response. Our data showed that the presence of caspase 1/11 in the immune system is sufficient for a fully inflammatory response, whereas the absence of caspase 1/11 in keratinocytes/fibroblasts had no impact. In summary, our study indicates that inflammatory caspases activated in immune cells are implicated in psoriasis pathogenesis.
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Affiliation(s)
| | | | | | | | | | | | | | - Maéva Gesson
- Université Côte d'Azur, INSERM, C3M, Nice, France
| | | | | | | | | | | | | | | | | | | | - Jean-Paul Ortonne
- Centre Hospitalier Universitaire de Nice, Service de Dermatologie, Hôpital Archet II, Nice, France
| | - Thierry Passeron
- Université Côte d'Azur, INSERM, C3M, Nice, France; Centre Hospitalier Universitaire de Nice, Service de Dermatologie, Hôpital Archet II, Nice, France
| | - Jean-Philippe Lacour
- Centre Hospitalier Universitaire de Nice, Service de Dermatologie, Hôpital Archet II, Nice, France
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Decreased expression of G-protein-coupled receptors GPR43 and GPR109a in psoriatic skin can be restored by topical application of sodium butyrate. Arch Dermatol Res 2018; 310:751-758. [PMID: 30209581 DOI: 10.1007/s00403-018-1865-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/04/2018] [Accepted: 09/08/2018] [Indexed: 12/27/2022]
Abstract
The G-protein-coupled receptors GPR43 and GPR109a are known to play an important role in mediating anti-inflammatory and anti-cancer functions in the gut. Short-chain fatty acids, such as sodium butyrate (SB), are activators of GPR43 and GPR109a and thereby promote anti-inflammatory effects. The present study aimed to examine the expression of these receptors and their reaction to SB in psoriasis. Lesional and non-lesional biopsies of 6 psoriasis patients and of 4 controls were obtained and stained for GPR109a and GPR43. Ex vivo stimulation with SB was performed on fresh biopsy material. Lesional and non-lesional psoriatic skin showed a decreased expression of GPR109a and GPR43 on keratinocytes in comparison with control skin. Topical application of SB was able to increase the low-level expression of both receptors. The data suggest that SB by restoring the impaired expression of GPR109a and GPR43 might exert anti-inflammatory effects and may be utilized as a topical tool for the treatment of psoriasis, which has to be proven in future clinical trials.
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25
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Tuberculin skin test reaction is related to memory, but not naive CD4 + T cell responses to mycobacterial stimuli in BCG-vaccinated young adults. Vaccine 2018; 36:4566-4577. [PMID: 29909133 DOI: 10.1016/j.vaccine.2018.05.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/11/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022]
Abstract
Bacillus Calmette-Guérin (BCG) is the only vaccine available against tuberculosis and the tuberculin skin test (TST) is the most widely used method to detect BCG take. However, subjects may remain TST-negative, even after several BCG administrations. To investigate some of the potential reasons underlying this inability of developing tuberculin sensitivity in response to BCG we compared the effect of different mycobacterial stimuli in the groups differently responding to tuberculin. TST was performed on 71 healthy adults aged 25-30 years, who had received BCG in their childhood, and considered TST-positive at ≥10 mm. Dendritic cells (DCs) were incubated with PPD, live BCG or rBCGhIL-18, producing human IL-18. The latter strain was used to investigate whether the production of IL-18 could overcome some of the immune read-out limitations in the TST-negative subjects. CD86, CD80, CD40, and DC-specific intracellular adhesion molecule-3 grabbing nonintegrin (DC-SIGN) expression was analysed by flow cytometry and IL-10, IL-23 and IP-10 secretion in culture supernatants by ELISA. In DCs-T cell co-cultures with naive and memory CD4+ T cells, the IFN-γ and IL-10 levels were determined by ELISA. We found no difference in IL-10 and IFN-γ production by naive T cells between the TST-negative and TST-positive subjects. However, IFN-γ was produced in significantly higher amounts by memory T cells incubated with PPD, BCG or rBCGhIL-18-pulsed DCs in TST-positive than in TST-negative subjects, whereas the numbers of the IFN-γ-producing T cells were similar in both groups. This difference may be partially due to a decreased CD40 and enhanced reduction in DC-SIGN expression by DCs of TST-negative versus TST-positive subjects. A strong effect of IL-18 expression by rBCGhIL-18 on IL-23 production by the DC was seen in both groups, which likely was the reason for the increased IFN-γ production by naïve T cells upon incubation with mycobacteria-pulsed DC, regardless of the TST status.
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