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Zhu Y, Chen X, Zou Y, Su L, Yan X, Zhu X, Hou Y, Liu M, Jiang W, Zou C, Chen X, Xu Z. Ze-Qi-Tang formula inhibits MDSCs glycolysis through the down-regulation of p21/Hif1α/Glut1 signal in psoriatic-like mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155544. [PMID: 38810554 DOI: 10.1016/j.phymed.2024.155544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/07/2024] [Accepted: 03/17/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Psoriasis is a chronic immune-mediated inflammatory skin disease that affects the quality of life and mental health of approximately 150 million people worldwide. Ze-Qi-Tang (ZQT) is a classic compound used in China for lung disease; however, its mechanism of action in psoriasis remains unclear. This study aimed to investigate the therapeutic effect of the ZQT formula on psoriasis and explore the underlying molecular mechanisms. METHODS Peripheral blood samples were collected from patients with psoriasis and healthy individuals. Flow cytometry was used to detect changes in the proportions of myeloid-derived suppressor cells (MDSCs) and other immune cells. Psoriasis was induced in mice by the daily application of imiquimod. ZQT was administered separately or in combination with anti-Gr1 antibody to deplete MDSC. The glycolysis levels of the MDSCs were detected using a Seahorse analyzer. The p21/Hif1α/Glut1 pathway was identified and validated by mRNA sequence, RT-qPCR, WB, IF, and the application of p21 inhibitor UC2288. RESULTS The number of MDSCs was significantly increased in patients with psoriasis, with the increased expression of p21, Hif1α, and Glut1 in MDSCs. ZQT significantly alleviated psoriasis-like skin lesions in mice. ZQT formula significantly reduced the number of MDSCs in psoriatic-like mice and enhanced their suppressive capacity for T cells. The efficacy of ZQT in alleviating psoriatic dermatitis is compromised by MDSC depletion. ZQT decreased the expressions of p21, Hif1α, and Glut1-induced glycolysis in MDSCs, thereby inhibiting Th17 cell differentiation. CONCLUSION These suggest that ZQT alleviates IMQ-induced psoriatic dermatitis, by inhibiting p21/Hif1α/Glut1-induced glycolysis in MDSCs.
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Affiliation(s)
- Yangzhuangzhuang Zhu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China
| | - Xi Chen
- Department of Traditional Chinese Medicine Dermatology, Shanghai Skin Disease Hospital, 1278 Baode Rd., Jingan District, Shanghai, 200443, China
| | - Yimeng Zou
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China
| | - Lin Su
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China
| | - Xuewei Yan
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xiaowen Zhu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China
| | - Yifei Hou
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Mingxi Liu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China
| | - Wencheng Jiang
- Department of Traditional Chinese Medicine Dermatology, Shanghai Skin Disease Hospital, 1278 Baode Rd., Jingan District, Shanghai, 200443, China.
| | - Chunpu Zou
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China.
| | - Xiao Chen
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China.
| | - Zihang Xu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Rd., Pudong District, Shanghai, 201203, China.
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To TT, Oparaugo NC, Kheshvadjian AR, Nelson AM, Agak GW. Understanding Type 3 Innate Lymphoid Cells and Crosstalk with the Microbiota: A Skin Connection. Int J Mol Sci 2024; 25:2021. [PMID: 38396697 PMCID: PMC10888374 DOI: 10.3390/ijms25042021] [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: 12/01/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Innate lymphoid cells (ILCs) are a diverse population of lymphocytes classified into natural killer (NK) cells, ILC1s, ILC2s, ILC3s, and ILCregs, broadly following the cytokine secretion and transcription factor profiles of classical T cell subsets. Nonetheless, the ILC lineage does not have rearranged antigen-specific receptors and possesses distinct characteristics. ILCs are found in barrier tissues such as the skin, lungs, and intestines, where they play a role between acquired immune cells and myeloid cells. Within the skin, ILCs are activated by the microbiota and, in turn, may influence the microbiome composition and modulate immune function through cytokine secretion or direct cellular interactions. In particular, ILC3s provide epithelial protection against extracellular bacteria. However, the mechanism by which these cells modulate skin health and homeostasis in response to microbiome changes is unclear. To better understand how ILC3s function against microbiota perturbations in the skin, we propose a role for these cells in response to Cutibacterium acnes, a predominant commensal bacterium linked to the inflammatory skin condition, acne vulgaris. In this article, we review current evidence describing the role of ILC3s in the skin and suggest functional roles by drawing parallels with ILC3s from other organs. We emphasize the limited understanding and knowledge gaps of ILC3s in the skin and discuss the potential impact of ILC3-microbiota crosstalk in select skin diseases. Exploring the dialogue between the microbiota and ILC3s may lead to novel strategies to ameliorate skin immunity.
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Affiliation(s)
- Thao Tam To
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Nicole Chizara Oparaugo
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Alexander R. Kheshvadjian
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Amanda M. Nelson
- Department of Dermatology, Penn State University College of Medicine, Hershey, PA 17033, USA
| | - George W. Agak
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
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Hou Y, Zhang H, Zhu Y, He X, Li W, Su L, Liu M, Chen X, Shen F, Chen X, Jiang W, Zou C, Xu Z. Targeting upregulation of the immunosuppressive activity of MDSCs with indirubin as a novel strategy to alleviate psoriasis. Int Immunopharmacol 2023; 123:110710. [PMID: 37531829 DOI: 10.1016/j.intimp.2023.110710] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Psoriasis is a chronic and incurable skin disorder that causes inflammation. There is an urgent clinical need for new treatments. We identified the natural compound indirubin as a potential potent agent for the treatment of psoriasis, but it's therapeutic effect and underlying mechanisms were not well understood. METHODS Peripheral blood and skin tissues from psoriasis patients and healthy individuals were collected. Bioinformatics analysis was performed to investigate LAT1 expression and associated signal pathways in psoriasis skin lesions. A mouse model of psoriasis was established. Indirubin was administered separately or in combination with MDSCs depletion or adoptively transferred MDSCs. JPH203, rapamycin, siRNA, and NV5138 were further used to investigate the potential mechanism by which indirubin regulates MDSCs. RESULTS Psoriasis patients had increased numbers of MDSCs in their blood and skin lesions, with high expression of Lat1. The upregulation of LAT1 expression and the arginine synthesis pathway was observed in psoriasis skin lesions. The number of MDSCs was increased, while their inhibitory effect on psoriatic T cells was decreased. Indirubin decreased Lat1 expression on the surface of MDSCs, inhibited mTOR pathway activation, upregulated Arg1 expression in MDSCs, and enhanced the immunosuppressive activity of MDSCs while inhibiting CD4+CCR6+ T cells. CONCLUSION This study demonstrates indirubin's pharmacological and therapeutic effects, providing a basis for future clinical application in treating psoriasis.
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Affiliation(s)
- Yifei Hou
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huimin Zhang
- Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Yangzhuangzhuang Zhu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xufeng He
- Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Wen Li
- Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Lin Su
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mingxi Liu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xi Chen
- Department of Traditional Chinese Medicine Dermatology, Shanghai Skin Disease Hospital, Shanghai 200443, China
| | - Fang Shen
- Department of Traditional Chinese Medicine Dermatology, Shanghai Skin Disease Hospital, Shanghai 200443, China
| | - Xiao Chen
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wencheng Jiang
- Department of Traditional Chinese Medicine Dermatology, Shanghai Skin Disease Hospital, Shanghai 200443, China.
| | - Chunpu Zou
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Zihang Xu
- Shanghai Key Laboratory of Health Identification and Assessment, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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4
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Li X, Zhou W, Wang D. Integrative bioinformatic analysis identified IFIT3 as a novel regulatory factor in psoriasis. J Cell Biochem 2022; 123:2066-2078. [PMID: 36169003 DOI: 10.1002/jcb.30332] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/18/2022] [Accepted: 09/16/2022] [Indexed: 12/24/2022]
Abstract
Psoriasis is an autoimmune skin disease with poor prognosis. Currently, there is no cure for psoriasis and the pathogenic mechanism of psoriasis remains unclear. Our study aims to explore key regulators underlying psoriasis and potential targets for psoriasis treatment. RNA-seq data of psoriasis and normal tissues were extracted from Gene Expression Omnibus database to screen differentially expressed genes (DEGs). Weighted correlation network analysis (WGCNA) was conducted to identify key gene modules correlated with psoriasis. Enrichment analysis was used to characterize identified genes. The expression of identified genes was verified in a data set with various types of psoriasis lesion tissues and six psoriasis and healthy control tissues by quantitative polymerase chain reaction and immunohistochemistry assays. And the biological functions of IFIT3 in keratinocytes were determined by colony formation assays, Cell Counting Kit-8, and enzyme-linked immunosorbent assays. A total of 594 overlapped genes (370 upregulated and 224 downregulated) were selected as DEGs between psoriasis and normal tissues in three independent data sets. These genes were enriched in interferon-related pathway and cytokine-related pathway. Weighted correlation network analysis identified several gene modules that were associated with psoriasis. Overlapped genes between gene modules and DEGs were associated with interferon-related pathway and T cell activities. Among these genes, OAS1, USP18, and IFIT3 had higher expression levels in psoriasis vulgaris (PV) and nonpustular palmoplantar psoriasis (NPPP) tissues but not Palmoplantar Pustular Psoriasis (PPPP). Meanwhile, these results were confirmed in our independent psoriasis tissue cohort. And results of in vitro experiments showed that inhibition of IFIT3 significantly impaired the proliferation capacity and CXCL1, CCL20, IL-1β, and IL-6 secretion of keratinocytes. Our study identified key genes and pathways underlying the pathogenesis of psoriasis through the conduct of integrated analysis. OAS1, USP18, and IFIT3 could be potential targets for the treatment of psoriasis. IFIT3 can promote the proliferation and immune activation of keratinocytes and facilitates the development of psoriasis.
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Affiliation(s)
- Xizhe Li
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis and Treatment, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Wolong Zhou
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis and Treatment, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
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5
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Liu P, Peng C, Chen X, Wu L, Yin M, Li J, Qin Q, Kuang Y, Zhu W. Acitretin Promotes the Differentiation of Myeloid-Derived Suppressor Cells in the Treatment of Psoriasis. Front Med (Lausanne) 2021; 8:625130. [PMID: 33834031 PMCID: PMC8021725 DOI: 10.3389/fmed.2021.625130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/01/2021] [Indexed: 11/30/2022] Open
Abstract
Increased numbers of myeloid-derived suppressor cells (MDSCs) are involved in the development of psoriasis. Acitretin is used to treat psoriasis by regulating the proliferation and differentiation of keratinocytes, but little is known about the effect of acitretin on immune cells. Here, we reported that psoriasis patients had an expansion of MDSCs and monocytic-MDSCs (M-MDSCs) in peripheral blood and skin lesions. The number of MDSCs and M-MDSCs in peripheral blood correlated positively with disease severity. Acitretin could reduce the number of MDSCs and M-MDSCs in the peripheral blood of psoriasis patients as well as the spleen and skin lesions of IMQ-induced psoriasis-like model mice. Moreover, acitretin promoted the differentiation of MDSCs into macrophages, especially CD206+ M2 macrophages, and CD11c+MHC-II+ dendritic cells. Mechanically, acitretin dramatically increased the glutathione synthase (GSS) expression and glutathione (GSH) accumulation in MDSCs. Interruption of GSH synthesis abrogated the acitretin effect on MDSCs differentiation. Acitretin regulated GSS expression via activation of extracellular signal-regulated kinase 1/2. Thus, our data demonstrated a novel mechanism underlying the effects of acitretin on psoriasis by promoting MDSCs differentiation.
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Affiliation(s)
- Panpan Liu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Cong Peng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China.,Gerontology Center of Xiangya Hospital, Central South University, Changsha, China
| | - Lisha Wu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Mingzhu Yin
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Jie Li
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Qunshi Qin
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Yehong Kuang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Wu Zhu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, China.,Gerontology Center of Xiangya Hospital, Central South University, Changsha, China
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6
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Solberg SM, Aarebrot AK, Sarkar I, Petrovic A, Sandvik LF, Bergum B, Jonsson R, Bryceson YT, Appel S. Mass cytometry analysis of blood immune cells from psoriasis patients on biological therapy. Eur J Immunol 2021; 51:694-702. [PMID: 33226128 DOI: 10.1002/eji.202048857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/08/2020] [Accepted: 11/19/2020] [Indexed: 12/21/2022]
Abstract
Psoriasis is a chronic immune-mediated skin disease accompanied by systemic inflammation and comorbidities. We analyzed peripheral blood mononuclear cells (PBMCs) in the search for immune signatures and biomarkers related to psoriasis severity and treatment effect. Thirty-two patients with psoriasis and 10 matched healthy controls were included. PBMCs were collected before and after initiation of anti-TNF, anti-IL-17 or anti-IL-12/23 treatment and analyzed utilizing 26-parameter mass cytometry. The number of circulating Th17, Th22, Th9, and cytotoxic T cells were increased in severe psoriasis. Intracellular pp38 and pERK in T helper cells were associated with disease severity. Differences between responders and nonresponders regarding cell composition and intracellular signaling were identifiable already at inclusion. Biological treatment induced memory cells, restored inhibitory PD-1 function of T cells, and reduced a potential pro-atherogenic profile in monocytes. In conclusion, these results indicate amelioration of systemic inflammation in psoriasis after biological treatment. Such broad immune profiling may enable prospective stratification of patients regarding future treatment response. Successful early intervention may lead to a healthier trajectory with favorable implications on later comorbidities.
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Affiliation(s)
- Silje Michelsen Solberg
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Dermatology, Haukeland University Hospital, Bergen, Norway
| | - Anders Krogh Aarebrot
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Irene Sarkar
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Aleksandra Petrovic
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Lene Frøyen Sandvik
- Department of Dermatology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Brith Bergum
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway.,Flow Cytometry Core Facility, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Roland Jonsson
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Yenan Troy Bryceson
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Silke Appel
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway.,Flow Cytometry Core Facility, Department of Clinical Science, University of Bergen, Bergen, Norway
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7
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Psoriasis and Psoriatic Arthritis Cardiovascular Disease Endotypes Identified by Red Blood Cell Distribution Width and Mean Platelet Volume. J Clin Med 2020; 9:jcm9010186. [PMID: 31936662 PMCID: PMC7019311 DOI: 10.3390/jcm9010186] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/27/2019] [Accepted: 01/03/2020] [Indexed: 12/12/2022] Open
Abstract
In a subset of psoriasis (PsO) and psoriatic arthritis (PsA) patients, the skin and/or joint lesions appear to generate biologically significant systemic inflammation. Red cell distribution width (RDW) and mean platelet volume (MPV) are readily available clinical tests that reflect responses of the bone marrow and/or plasma thrombogenicity (e.g., inflammation), and can be markers for major adverse cardiac events (MACE). We aimed to evaluate if RDW and MPV may be employed as inexpensive, routinely obtained biomarkers in predicting myocardial infarction (MI), atrial fibrillation (AF), and chronic heart failure (CHF) in psoriatic and psoriatic arthritis patients. The study was divided into two parts: (a) case control study employing big data (Explorys) to assess MPV and RDW in psoriasis, psoriatic arthritis and control cohorts; (b) a clinical observational study to validate the predictive value of RDW and to evaluate RDW response to anti-psoriatic therapies. We used Explorys, an aggregate electronic database, to identify psoriatic patients with available MPV and RDW data and compared them to gender and age matched controls. The incidence of myocardial infarction (MI), atrial fibrillation (AF), and chronic heart failure (CHF) was highest among patients with both elevated RDW and MPV, followed by patients with high RDW and normal MPV. RDW elevation among PsA patients was associated with an increased risk of MI, AF, and CHF. In a local clinical cohort, high RDWs were concentrated in a subset of patients who also had elevated circulating resistin levels. Among a small subset of participants who were treated with various systemic and biologic therapies, and observed over a year, and in whom RDW was elevated at baseline, a sustained response to therapy was associated with a decrease in RDW. RDW and MPV, tests commonly contained within routine complete blood count (CBC), may be a cost-effective manner to identify PsO and PsA patients at increased risk of MACE.
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8
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Uttarkar S, Brembilla NC, Boehncke WH. Regulatory cells in the skin: Pathophysiologic role and potential targets for anti-inflammatory therapies. J Allergy Clin Immunol 2019; 143:1302-1310. [PMID: 30664891 DOI: 10.1016/j.jaci.2018.12.1011] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/26/2018] [Accepted: 12/26/2018] [Indexed: 02/07/2023]
Abstract
Inflammation is a fundamental defense mechanism to protect the body from danger, which becomes potentially harmful if it turns chronic. Therapeutic strategies aimed at specifically blocking proinflammatory signals, particularly cytokines, such as IL-4, IL-6, IL-13, IL-17A, or TNF-α, have substantially improved our ability to effectively and safely treat chronic inflammatory diseases. Much less effort has been made to better understand the role of potential anti-inflammatory mechanisms. Here we summarize the current understanding of regulatory cell populations in the context of chronic inflammation, namely macrophages, Langerhans cells, myeloid-derived suppressor cells, and regulatory T and B lymphocytes. Emphasis is given to the skin because many different immune-related diseases occur in the skin. Development, phenotype, function, and evidence for their role in animal models of inflammation, as well as in the corresponding human diseases, are described. Finally, the feasibility of using regulatory cells as targets for potentially disease-modifying therapeutic strategies is discussed.
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Affiliation(s)
- Sagar Uttarkar
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | - Wolf-Henning Boehncke
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland; Division of Dermatology and Venereology, Geneva University Hospitals and School of Medicine, Geneva, Switzerland.
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9
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Gianchecchi E, Fierabracci A. Inhibitory Receptors and Pathways of Lymphocytes: The Role of PD-1 in Treg Development and Their Involvement in Autoimmunity Onset and Cancer Progression. Front Immunol 2018; 9:2374. [PMID: 30386337 PMCID: PMC6199356 DOI: 10.3389/fimmu.2018.02374] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/24/2018] [Indexed: 12/12/2022] Open
Abstract
Regulatory T (Treg) cells represent a subpopulation of suppressor CD4+ T cells critically involved in the establishment of peripheral tolerance through the inhibition of effector T (Teff) cells and the suppression of the immune-mediated tissue destruction toward self-antigens. Treg generation, their suppressive properties and also Treg-Teff cell interactions could be modulated at least in part by programmed cell death-1 (PD-1) expression on their surface and through binding between PD-1 and programmed cell death ligand-1 (PD-L1). Defects involving PD-1 and Tregs can lead to the development of pathological conditions, including autoimmune disorders or promote cancer progression by favoring tumor evasion from the host immune response. At the same time, PD-1 and Tregs could represent attractive targets for treatment, as demonstrated by the therapeutic blockade of PD-L1 applied for the management of different cancer conditions in humans. In the present Review, we focus specifically the role of PD-1/PD-L1 on Treg development and activity.
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Affiliation(s)
- Elena Gianchecchi
- Infectivology and Clinical Trials Research Department, Children's Hospital Bambino Gesù, Rome, Italy.,VisMederi S.r.l., Siena, Italy
| | - Alessandra Fierabracci
- Infectivology and Clinical Trials Research Department, Children's Hospital Bambino Gesù, Rome, Italy
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10
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Chen Z, Zhou L, Won T, Gao Z, Wu X, Lu L. Characterization of CD45RO + memory T lymphocytes in keloid disease. Br J Dermatol 2018; 178:940-950. [PMID: 29194570 DOI: 10.1111/bjd.16173] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Memory T cells, a highly effective subset of T lymphocytes, have been reported to be involved in many inflammatory skin disorders. However, the potential role of memory T cells in keloid disease (KD) remains unclear. OBJECTIVES Due to their important role in regulating inflammation, we investigated the characteristics of CD45RO+ memory T cells in KD. METHODS Primary cutaneous cells were isolated from keloid scars and normal skin by enzymic digestion. Peripheral blood mononuclear cells were isolated from a related blood sample, and flow cytometry was applied to identify the phenotypic and functional abnormalities of memory T cells in KD. RESULTS We observed that the majority of T lymphocytes in keloid scars had the memory phenotype, and a greater number of the CD8+ memory T cells in keloid scars produced lower levels of tumour necrosis factor (TNF)-α. This abnormal cytokine production was even more distinct in Forkhead box (FOX)P3- CD8- memory T cells, with lower TNF-α production and enhanced interferon-γ production. Furthermore, FOXP3+ CD8- memory T cells in keloid scars were abnormal, including showing reduced CD25 and cytotoxic T-lymphocyte-associated antigen 4 expression and interleukin-10 production. In addition, a significant decrease in the number of CD4+ CD25high FOXP3+ regulatory T cells was identified in patients with multiple keloid scars. We also found that there was significantly increased infiltration of CD103+ CD8+ memory T cells in keloid scars. CONCLUSIONS Our findings preliminarily elucidate the abnormalities of CD45RO+ memory T cells in keloid scars and provide early evidence that a disrupted T-cell response contributes to the progression of KD.
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Affiliation(s)
- Z Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - L Zhou
- Research Center, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - T Won
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Z Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - X Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - L Lu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
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