1
|
Yan B, Liu N, Li J, Li J, Zhu W, Kuang Y, Chen X, Peng C. The role of Langerhans cells in epidermal homeostasis and pathogenesis of psoriasis. J Cell Mol Med 2020; 24:11646-11655. [PMID: 32916775 PMCID: PMC7579693 DOI: 10.1111/jcmm.15834] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/07/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022] Open
Abstract
The skin is the main barrier between the human body and the outside world, which not only plays the role of a physical barrier but also functions as the first line of defence of immunology. Langerhans cells (LCs), as dendritic cells (DC) that play an important role in the immune system, are mainly distributed in the epidermis. This review focuses on the role of these epidermal LCs in regulating skin threats (such as microorganisms, ultraviolet radiation and allergens), especially psoriasis. Since human and mouse skin DC subsets share common ontogenetic characteristics, we can further explore the role of LCs in psoriatic inflammation.
Collapse
Affiliation(s)
- Bei Yan
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Nian Liu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Jie Li
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Jiaoduan Li
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Wu Zhu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Yehong Kuang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| | - Cong Peng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, China.,Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, China
| |
Collapse
|
2
|
Eaton LH, Dearman RJ, Kimber I, Griffiths CEM. Keratinocytes derived from late-onset-psoriasis skin do not impair Langerhans cell migration. Br J Dermatol 2018; 179:1208-1209. [PMID: 29923325 DOI: 10.1111/bjd.16896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L H Eaton
- The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, M6 8HD, U.K
| | - R J Dearman
- The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, M6 8HD, U.K
| | - I Kimber
- The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, M6 8HD, U.K
| | - C E M Griffiths
- The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, M6 8HD, U.K
| |
Collapse
|
3
|
Lee M, Kim SH, Kim TG, Park J, Lee JW, Lee MG. Resident and monocyte-derived Langerhans cells are required for imiquimod-induced psoriasis-like dermatitis model. J Dermatol Sci 2018; 91:52-59. [PMID: 29655588 DOI: 10.1016/j.jdermsci.2018.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 03/18/2018] [Accepted: 04/03/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Langerhans cells (LCs) are dendritic cells that reside in the epidermis and local inflammation results in an increased differentiation of monocyte-derived LCs. Only few studies have investigated on the role of LCs in psoriasis-like dermatitis model, but the results are variable and the exact role of LCs in psoriasis model remains to be elucidated. OBJECTIVE To explore the functional role of resident (rLCs) and monocyte-derived LCs (mLCs) in imiquimod (IMQ)-induced psoriasis-like inflammation using human Langerin-diphtheria toxin subunit A (huLang-DTA) mice. METHODS 5% IMQ cream was topically applied on the skins. Clinical and histopathological features were evaluated. Psoriasis-related gene expression was analyzed by quantitative polymerase chain reaction. The production of psoriasis-related cytokines including IL-17A and IL-22 by T cells were assessed by flow cytometry from the lesional skins. RESULTS huLang-DTA mice showed a common depletion of both rLCs and mLCs in the IMQ-treated skins. huLang-DTA mice had a reduced IMQ-induced psoriasis-like inflammation featuring erythema, scale, and thickness compared with wild-type mice. Psoriatic lesions from huLang-DTA mice had a decreased level of Il23a and accordingly demonstrated an attenuated cytokine production of IL-17A and IL-22 from γδlow T cells. mLCs revealed a significantly greater level of IL-23 expression compared to rLCs in response to topical IMQ treatment. CONCLUSION Although both rLCs and mLCs are involved in the development of IMQ-induced psoriasis-like dermatitis, inflammation-induced mLCs present a superior capacity for producing IL-23 in this murine experimental model of psoriasis.
Collapse
Affiliation(s)
- Minseok Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Sung Hee Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Gyun Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Jeyun Park
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Jae Won Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Min-Geol Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.
| |
Collapse
|
4
|
Abstract
Psoriasis is a common skin disease that presents with well-demarcated patches of inflammation. Recurrent disease in fixed areas of the skin indicates a localized disease memory that is preserved in resolved lesions. In line with such concept, the involvement of tissue-resident immune cells in psoriasis pathology is increasingly appreciated. Langerhans cells (LCs) are perfectly placed to steer resident T cells and local tissue responses in psoriasis. Here, we present an overview of the current knowledge of LCs in human psoriasis, including findings that highlight pro-inflammatory features of LCs in psoriasis lesions. We also review the literature on conflicting data regarding LC localization and functionality in psoriasis. Our review highlights that further studies are needed to elucidate the molecular mechanisms that drive LCs functionality in inflammatory diseases.
Collapse
Affiliation(s)
- Liv Eidsmo
- Department of Medicine Solna, Karolinska Institutet, Solna, Sweden.,Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden
| | - Elisa Martini
- Department of Medicine Solna, Karolinska Institutet, Solna, Sweden.,Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
5
|
Fibered Confocal Fluorescence Microscopy for the Noninvasive Imaging of Langerhans Cells in Macaques. CONTRAST MEDIA & MOLECULAR IMAGING 2017; 2017:3127908. [PMID: 29097915 PMCID: PMC5612736 DOI: 10.1155/2017/3127908] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/28/2017] [Accepted: 05/08/2017] [Indexed: 12/31/2022]
Abstract
Purpose We developed a new approach to visualize skin Langerhans cells by in vivo fluorescence imaging in nonhuman primates. Procedures Macaques were intradermally injected with a monoclonal, fluorescently labeled antibody against HLA-DR molecule and were imaged for up to 5 days by fibered confocal microscopy (FCFM). Results The network of skin Langerhans cells was visualized by in vivo fibered confocal fluorescence microscopy. Quantification of Langerhans cells revealed no changes to cell density with time. Ex vivo experiments confirmed that injected fluorescent HLA-DR antibody specifically targeted Langerhans cells in the epidermis. Conclusions This study demonstrates the feasibility of single-cell, in vivo imaging as a noninvasive technique to track Langerhans cells in nontransgenic animals.
Collapse
|
6
|
Martini E, Wikén M, Cheuk S, Gallais Sérézal I, Baharom F, Ståhle M, Smed-Sörensen A, Eidsmo L. Dynamic Changes in Resident and Infiltrating Epidermal Dendritic Cells in Active and Resolved Psoriasis. J Invest Dermatol 2016; 137:865-873. [PMID: 28011143 DOI: 10.1016/j.jid.2016.11.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 11/07/2016] [Accepted: 11/17/2016] [Indexed: 12/24/2022]
Abstract
Epidermal Langerhans cells (LCs) are spatially separated from dermal dendritic cells (DCs) in healthy human skin. In active psoriasis, maintained by local production of IL-23 and IL-17, inflammatory DCs infiltrate both skin compartments. Here we show that CCR2+ epidermal DCs (eDCs) were confined to lesional psoriasis and phenotypically distinct from dermal DCs. The eDCs exceeded the number of LCs and displayed high expression of genes involved in neutrophil recruitment and the activation of keratinocytes and T cells. Resident LCs responded to toll-like receptor 4 and toll-like receptor 7/8 activation with increased IL-23 production, whereas eDCs additionally produced IL-1β together with IL-23 and tumor necrosis factor. Psoriasis typically recur in fixed skin lesions. eDCs were absent from resolved psoriasis. Instead, LCs from anti-tumor necrosis factor-treated lesions retained high IL23A expression and responded to toll-like receptor stimulation by producing IL-23. Our results reveal phenotypic and functional properties of eDCs and resident LCs in different clinical phases of psoriasis, and the capacity of these cells to amplify the epidermal microenvironment through the secretion of IL-17 polarizing cytokines.
Collapse
Affiliation(s)
- Elisa Martini
- Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Maria Wikén
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Stanley Cheuk
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Irène Gallais Sérézal
- Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Faezzah Baharom
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Mona Ståhle
- Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | | | - Liv Eidsmo
- Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
7
|
Kirby B. Is late-onset psoriasis a distinct subtype of chronic plaque psoriasis? Br J Dermatol 2016; 175:869-870. [PMID: 27790674 DOI: 10.1111/bjd.15035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- B Kirby
- Department of Dermatology, St Vincent's University Hospital and University College Dublin, Dublin, Ireland.
| |
Collapse
|
8
|
Theodorakopoulou E, Yiu ZZN, Bundy C, Chularojanamontri L, Gittins M, Jamieson LA, Motta L, Warren RB, Griffiths CEM. Early- and late-onset psoriasis: a cross-sectional clinical and immunocytochemical investigation. Br J Dermatol 2016; 175:1038-1044. [PMID: 27459949 DOI: 10.1111/bjd.14886] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is accumulating evidence that early-onset psoriasis (EOP; presenting at or before 40 years of age) and late-onset psoriasis (LOP; presenting after 40 years of age) are different diseases. OBJECTIVES We aimed to identify potential clinical and immunocytochemical differences between EOP and LOP. METHODS We assessed immunocytochemistry in involved (PP) skin and uninvolved skin (n = 31) and demographics, psoriasis phenotype and psychological parameters (n = 340) in a cross-sectional study. RESULTS Immunocytochemistry revealed (17 EOP, 14 LOP) a greater lymphocytic infiltrate in PP skin of EOP compared with LOP (P = 0·03), with a higher epidermal CD4+ : CD8+ ratio in LOP (1·3) compared with EOP (0·5) (P = 0·002). In 340 patients with psoriasis (278 EOP, 62 LOP), we found an association with a positive first or second degree family history of psoriasis [62·0% vs. 35·6%, adjusted odds ratio (OR) 8·32, 95% confidence interval (CI) 1·90-36·52] and a higher likelihood of having parents with EOP (adjusted OR 10·34, 95% CI 1·32-81·83) in the EOP group. Patients with EOP were more likely to have received biological therapy (13·3% EOP vs. 3·5% LOP, P = 0·042), while patients with LOP had a higher likelihood of having type 2 diabetes (adjusted OR 3·43, 95% CI 1·004-11·691) and autoimmune thyroiditis (adjusted OR 5·05, 95% CI 1·62-15·7). Patients with LOP also had greater anxiety than patients with EOP (mean Hospital Anxiety and Depression Scale-A score LOP 8 ± 5, EOP 5 ± 5; P = 0·006). CONCLUSIONS Our findings provide further evidence for the difference between EOP and LOP.
Collapse
Affiliation(s)
- E Theodorakopoulou
- Dermatology Centre, Salford Royal NHS Foundation Trust, Salford, U.K.,Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - Z Z N Yiu
- Dermatology Centre, Salford Royal NHS Foundation Trust, Salford, U.K.,Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - C Bundy
- Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - L Chularojanamontri
- Dermatology Centre, Salford Royal NHS Foundation Trust, Salford, U.K.,Department of Dermatology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - M Gittins
- Centre of Biostatistics, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - L A Jamieson
- Cellular Pathology, Salford Royal NHS Foundation Trust, Salford, U.K
| | - L Motta
- Cellular Pathology, Salford Royal NHS Foundation Trust, Salford, U.K
| | - R B Warren
- Dermatology Centre, Salford Royal NHS Foundation Trust, Salford, U.K.,Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | - C E M Griffiths
- Dermatology Centre, Salford Royal NHS Foundation Trust, Salford, U.K.. .,Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K..
| |
Collapse
|
9
|
Gulliver WP, Randell S, Gulliver S, Connors S, Bachelez H, MacDonald D, Gladney N, Morrissey A, Fleming P. Do Biologics Protect Patients With Psoriasis From Myocardial Infarction? A Retrospective Cohort. J Cutan Med Surg 2016; 20:536-541. [PMID: 27207347 DOI: 10.1177/1203475416650430] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Psoriasis is a chronic immune-mediated inflammatory disorder that affects approximately 2% to 3% of the population, which translates to 17 million in North America and Europe and approximately 170 million people worldwide. Although psoriasis can occur at any age, most cases develop before age 40 years. Some larger studies have noted bimodal age at onset with the first peak occurring at approximately age 30 years and the second peak at around 55 to 60 years, but most patients have a younger age of onset (15-30 years). Psoriasis is associated with multiple comorbidities, decreased quality of life, and decreased longevity of life. Two recent systematic reviews and a meta-analysis concluded that psoriasis patients are at increased risk of major adverse cardiovascular events. Multiple studies confirm that many of the comorbidities found in patients with psoriasis are also important risk factors for cardiovascular disease, stroke, diabetes mellitus, hypertension, hyperlipidemia, obesity, and metabolic syndrome. METHODS We conducted a retrospective cohort study using charts from a dermatology clinic combined with an administrative database of patients with moderate to severe psoriasis in Newfoundland and Labrador, Canada. We examined the role of clinical predictors (age of onset of psoriasis, age, sex, biologic use) in predicting incident myocardial infarction (MI). RESULTS Logistic regression revealed that age of onset (odds ratio [OR], 8.85; P = .005), advancing age (OR, 1.07; P < .0001), and being male (OR, 3.64; P = .018) were significant risk factors for the development of MI. Neither biologic therapy nor duration of biologic therapy were statistically significant risk factors for the development of MI. Our study found that in patients with psoriasis treated with biologics, there was a nonsignificant trend in reduced MI by 78% (relative risk, 0.18; 95% confidence interval, 0.24-1.34; P = .056). CONCLUSION Our study demonstrated a trend toward decreased MI in patients with moderate to severe psoriasis on biologics. Patients with an early age of onset of psoriasis (<25 years) were nearly 9 times more likely to have an MI. Clinicians should consider appropriate cardiovascular risk reduction strategies in patients with psoriasis.
Collapse
Affiliation(s)
- Wayne P Gulliver
- Newlab Clinical Research, St John's, NL, Canada .,Department of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| | - Shane Randell
- Newlab Clinical Research, St John's, NL, Canada.,Department of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| | | | - Sean Connors
- Division of Cardiology, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| | - Hervé Bachelez
- Paris VII Denis-Diderot University, Assistance Publique-Hôpitaux de Paris (AP-HP), Dermatology Department, Hôpital Saint-Louis, Paris, France
| | - Don MacDonald
- Newfoundland and Labrador Centre for Health Information, St John's, NL, Canada
| | - Neil Gladney
- Newfoundland and Labrador Centre for Health Information, St John's, NL, Canada
| | - Andrea Morrissey
- Newfoundland and Labrador Centre for Health Information, St John's, NL, Canada
| | - Patrick Fleming
- Division of Dermatology, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
10
|
Mahil SK, Capon F, Barker JN. Update on psoriasis immunopathogenesis and targeted immunotherapy. Semin Immunopathol 2015; 38:11-27. [PMID: 26573299 PMCID: PMC4706579 DOI: 10.1007/s00281-015-0539-8] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 10/30/2015] [Indexed: 12/14/2022]
Abstract
Over recent years, significant progress has been made in characterisation of the underlying pathogenic mechanisms in psoriasis, a common cutaneous disease that is associated with major systemic co-morbidity and reduced life expectancy. Basic science discoveries have informed the design of novel therapeutic approaches, many of which are now under evaluation in late-stage clinical trials. Here we describe the complex interplay between immune cell types and cytokine networks that acts within self-perpetuating feedback loops to drive cutaneous inflammation in psoriasis. Genetic studies have been pivotal in the construction of the disease model and more recently have uncovered a distinct aetiology for rare, pustular variants of psoriasis. The translation of mechanistic insights into potential advancements in clinical care will also be described, including several treatments that target the interleukin-23 (IL-23)/T17 immune axis.
Collapse
Affiliation(s)
- Satveer K Mahil
- St John's Institute of Dermatology, Division of Genetics and Molecular Medicine, King's College London, London, UK
| | - Francesca Capon
- Department of Medical and Molecular Genetics, Division of Genetics and Molecular Medicine, King's College London, London, UK
| | - Jonathan N Barker
- St John's Institute of Dermatology, Division of Genetics and Molecular Medicine, King's College London, London, UK.
| |
Collapse
|
11
|
Abstract
Psoriasis vulgaris is a chronic inflammatory skin disease that results from the complex interplay between keratinocytes, dendritic cells, and T cells. Keratinocytes trigger innate and adaptive immune responses. Dermal myeloid dendritic cells regulate T cell activation and production of cytokines and chemokines that amplify inflammation. Most of the psoriatic T cells discretely produce interferon-γ, interleukin (IL)-17, and IL-22. The initiation phase of psoriasis involves Toll-like receptors, antimicrobial peptide LL37, and plasmacytoid dendritic cells. Keratinocytes are the main cutaneous cell type expressing IL-17 receptors and hence the immune circuit is amplified by keratinocytes upregulating mRNAs for a range of inflammatory products.
Collapse
|
12
|
Hébert HL, Bowes J, Smith RL, Flynn E, Parslew R, Alsharqi A, McHugh NJ, Barker JNWN, Griffiths CEM, Barton A, Warren RB. Identification of loci associated with late-onset psoriasis using dense genotyping of immune-related regions. Br J Dermatol 2015; 172:933-9. [PMID: 25124732 DOI: 10.1111/bjd.13340] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Chronic plaque psoriasis can be subdivided into two groups according to the age of onset: type 1 (early onset, before 40 years) and type 2 (late onset, at or beyond 40 years). So far, 36 genetic loci have been associated with early-onset psoriasis in genome-wide association studies of white populations, while few studies have investigated genetic susceptibility to late-onset psoriasis. OBJECTIVES To characterize the genetics underpinning late-onset psoriasis. METHODS We genotyped 543 cases of late-onset psoriasis and 4373 healthy controls using the Immunochip array, a dense genotyping chip containing single-nucleotide polymorphisms previously associated with autoimmune diseases. Imputation using SNP2HLA and stepwise logistic regression analysis was performed for markers spanning the human leucocyte antigen gene region. RESULTS Two loci (HLA-C and IL12B) previously associated with early-onset psoriasis showed significant association at a genome-wide threshold in the current study (P < 5 × 10(-8)). Six more loci (TRAF3IP2, IL23R, RNF114, IFIH1, IL23A and HLA-A) showed study-wide significant association (P < 2·3 × 10(-5); calculated using Genetic type 1 error calculator). Additionally, we identified an association at IL1R1 on chromosome 2q13, which is not associated with early-onset disease. CONCLUSIONS This is the largest study to date of genetic loci in late-onset psoriasis, and demonstrates the overlap that exists with early-onset psoriasis. It also suggests that some loci are associated exclusively with late-onset psoriasis.
Collapse
Affiliation(s)
- H L Hébert
- The Dermatology Centre, Salford Royal NHS Foundation Trust, University of Manchester, Manchester Academic Health Science Centre, Manchester, M6 8HD, U.K; Arthritis Research U.K. Centre for Genetics and Genomics, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, U.K
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Li L, Wang W, Cui H, Zheng X, Chen Y, Sheng Y, Gao J, Shen C, Zeng M, Zhang T, Sun L, Zhang X. The allele T of rs10852936 confers risk for early-onset psoriasis. J Dermatol Sci 2014; 77:129-31. [PMID: 25620289 DOI: 10.1016/j.jdermsci.2014.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/30/2014] [Accepted: 11/10/2014] [Indexed: 12/20/2022]
Affiliation(s)
- Longnian Li
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Wenjun Wang
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Hongzhou Cui
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Xiaodong Zheng
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Yan Chen
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Yujun Sheng
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Jinping Gao
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Changbing Shen
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Ming Zeng
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Tangde Zhang
- Department of Dermatology, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - Liangdan Sun
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China.
| | - Xuejun Zhang
- Institute of Dermatology and Department of Dermatology at No.1 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology and Venereology, Anhui Medical University, Hefei, Anhui, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology & Key laboratory of Dermatology, Ministry of Education, Hefei, Anhui, China; Department of Dermatology, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China; Department of Dermatology at No.2 Hospital, Anhui Medical University, Hefei, Anhui, China; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China.
| |
Collapse
|
14
|
Kim TG, Kim DS, Kim HP, Lee MG. The pathophysiological role of dendritic cell subsets in psoriasis. BMB Rep 2014; 47:60-8. [PMID: 24411465 PMCID: PMC4163895 DOI: 10.5483/bmbrep.2014.47.2.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Indexed: 12/17/2022] Open
Abstract
Psoriasis is a chronic inflammatory disorder characterized by an erythematous scaly plaque of the skin and is occasionally accompanied by systemic complications. In the psoriatic lesions, an increased number of cytokine-producing dendritic cells and activated T cells are observed, which indicate that psoriasis is a prototype of an immune-mediated dermatosis. During the last decade, emerging studies demonstrate novel roles for the dendritic cell subsets in the process of disease initiation and maintenance of psoriasis. In addition, recently discovered anti-psoriatic therapies, which specifically target inflammatory cytokines produced by lesional dendritic cells, bring much better clinical improvement compared to conventional treatments. These new therapies implicate the crucial importance of dendritic cells in psoriasis pathogenesis. This review will summarize and discuss the dendritic cell subsets of the human skin and their pathophysiological involvement in psoriasis based on mouse- and patient-oriented studies. [BMB Reports 2014; 47(2): 60-68]
Collapse
Affiliation(s)
- Tae-Gyun Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Dae Suk Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Hyoung-Pyo Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Min-Geol Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 120-752, Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Korea
| |
Collapse
|
15
|
Eaton LH, Chularojanamontri L, Ali FR, Theodorakopoulou E, Dearman RJ, Kimber I, Griffiths CEM. Guttate psoriasis is associated with an intermediate phenotype of impaired Langerhans cell migration. Br J Dermatol 2014; 171:409-11. [PMID: 24628096 DOI: 10.1111/bjd.12960] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND An episode of guttate psoriasis can be an isolated event, can recur as guttate episodes, or develop into chronic plaque psoriasis (CPP). A previous study revealed that early-onset (before age 40 years) CPP is associated with inhibition of epidermal Langerhans cell (LC) migration. OBJECTIVES To determine whether guttate psoriasis is also associated with abnormal LC mobilization. METHODS Three groups of patients were recruited: current guttate episode (n = 5); guttate psoriasis progressed to CPP (n = 6); and resolved guttate psoriasis (n = 2). Biopsies were taken from uninvolved skin and LC migration was measured ex vivo using an epidermal explant model. RESULTS Patients with a current episode of guttate psoriasis displayed epidermal LC migration, although the extent was significantly lower than in skin from healthy controls (P < 0·05). In contrast, in those patients in whom guttate psoriasis developed into CPP there was no mobilization of LC. Finally, in patients in whom guttate psoriasis had resolved, LC migration was normal. CONCLUSIONS We have shown that guttate psoriasis is associated with an abnormality of LC mobilization, but a less marked inhibition compared with that seen in CPP. In resolved guttate psoriasis LC function returns to normal. These data provide further evidence that the pathogenesis of psoriasis is characterized by significant changes in epidermal LC function.
Collapse
Affiliation(s)
- L H Eaton
- Faculty of Life Sciences, Salford Royal Hospital, University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K
| | | | | | | | | | | | | |
Collapse
|
16
|
Hébert HL, Bowes J, Smith RL, McHugh NJ, Barker JN, Griffiths CE, Barton A, Warren RB. Polymorphisms in IL-1B Distinguish between Psoriasis of Early and Late Onset. J Invest Dermatol 2014; 134:1459-1462. [DOI: 10.1038/jid.2013.485] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
17
|
Boltjes A, van Wijk F. Human dendritic cell functional specialization in steady-state and inflammation. Front Immunol 2014; 5:131. [PMID: 24744755 PMCID: PMC3978316 DOI: 10.3389/fimmu.2014.00131] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 03/14/2014] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells (DC) represent a heterogeneous population of antigen-presenting cells that are crucial in initiating and shaping immune responses. Although all DC are capable of antigen-uptake, processing, and presentation to T cells, DC subtypes differ in their origin, location, migration patterns, and specialized immunological roles. While in recent years, there have been rapid advances in understanding DC subset ontogeny, development, and function in mice, relatively little is known about the heterogeneity and functional specialization of human DC subsets, especially in tissues. In steady-state, DC progenitors deriving from the bone marrow give rise to lymphoid organ-resident DC and to migratory tissue DC that act as tissue sentinels. During inflammation additional DC and monocytes are recruited to the tissues where they are further activated and promote T helper cell subset polarization depending on the environment. In the current review, we will give an overview of the latest developments in human DC research both in steady-state and under inflammatory conditions. In this context, we review recent findings on DC subsets, DC-mediated cross-presentation, monocyte-DC relationships, inflammatory DC development, and DC-instructed T-cell polarization. Finally, we discuss the potential role of human DC in chronic inflammatory diseases.
Collapse
Affiliation(s)
- Arjan Boltjes
- Laboratory for Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Femke van Wijk
- Laboratory for Translational Immunology, Department of Pediatric Immunology, University Medical Center Utrecht , Utrecht , Netherlands
| |
Collapse
|
18
|
Affiliation(s)
- C E M Griffiths
- The Dermatology Centre, Salford Royal Hospital, The University of Manchester, Manchester Academic Health Science Centre, Manchester, U.K..
| |
Collapse
|
19
|
|
20
|
Sweeney CM, Tobin AM, Kirby B. Innate immunity in the pathogenesis of psoriasis. Arch Dermatol Res 2011; 303:691-705. [DOI: 10.1007/s00403-011-1169-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 07/08/2011] [Accepted: 08/09/2011] [Indexed: 01/23/2023]
|
21
|
CD69 modulates sphingosine-1-phosphate-induced migration of skin dendritic cells. J Invest Dermatol 2011; 131:1503-12. [PMID: 21412255 DOI: 10.1038/jid.2011.54] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this study, we have investigated the role of CD69, an early inducible leukocyte activation receptor, in murine dendritic cell (DC) differentiation, maturation, and migration. Skin DCs and DC subsets present in mouse lymphoid organs express CD69 in response to maturation stimuli. Using a contact sensitization model, we show that skin DCs migrated more efficiently to draining lymph nodes (LNs) in the absence of CD69. This was confirmed by subcutaneous transfer of CD69-/- DCs, which presented an increased migration to peripheral LNs. Two-photon microscopy analysis showed that once DCs reached the LNs, CD69 deficiency did not alter DC interstitial motility in the LNs. Chemotaxis to sphingosine-1-phosphate (S1P) was enhanced in CD69-/- DCs compared with wild-type DCs. Accordingly, we detected a higher expression of S1P receptor type-1 (S1P(1)) by CD69-/- DCs, whereas S1P(3) expression levels were similar in wild-type and CD69-/- DCs. Moreover, in vivo treatment with S1P analogs SEW2871 and FTY720 during skin sensitization reduced skin DC migration to peripheral LNs. These results suggest that CD69 regulates S1P-induced skin DC migration by modulating S1P(1) function. Together, our findings increase our knowledge on DC trafficking patterns in the skin, enabling the development of new directed therapies using DCs for antigen (Ag) delivery.
Collapse
|