1
|
Kurgyis Z, Vornholz L, Pechloff K, Kemény LV, Wartewig T, Muschaweckh A, Joshi A, Kranen K, Hartjes L, Möckel S, Steiger K, Hameister E, Volz T, Mellett M, French LE, Biedermann T, Korn T, Ruland J. Keratinocyte-intrinsic BCL10/MALT1 activity initiates and amplifies psoriasiform skin inflammation. Sci Immunol 2021; 6:eabi4425. [PMID: 34826258 DOI: 10.1126/sciimmunol.abi4425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
[Figure: see text].
Collapse
Affiliation(s)
- Zsuzsanna Kurgyis
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany.,Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Larsen Vornholz
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Konstanze Pechloff
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Lajos V Kemény
- Cutaneous Biology Research Center, Department of Dermatology and MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Department of Dermatology, Venereology, and Dermatooncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Tim Wartewig
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Andreas Muschaweckh
- Department of Experimental Neuroimmunology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Abhinav Joshi
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Katja Kranen
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Lara Hartjes
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Sigrid Möckel
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany.,Institute of Pathology, Universität Würzburg, Würzburg, Germany
| | - Katja Steiger
- Institute of Pathology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Erik Hameister
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Thomas Volz
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Mark Mellett
- Department of Dermatology, University Hospital of Zürich, University of Zurich (UZH), Zürich, Switzerland
| | - Lars E French
- Department of Dermatology, University Hospital of Zürich, University of Zurich (UZH), Zürich, Switzerland.,Department of Dermatology and Allergy, University Hospital, LMU Munich Munich, Germany.,Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Tilo Biedermann
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Thomas Korn
- Department of Experimental Neuroimmunology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Jürgen Ruland
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Center for Infection Research (DZIF), Munich partner site, Munich Germany
| |
Collapse
|
2
|
Topaloglu Demir F, Yontem O, Turkoglu Z, Agirgol S, Kaya H, Ozkok Akbulut T. A case of co-occurence of Dowling-Degos disease and psoriasis: association or a rarely-seen coincidence? GIORN ITAL DERMAT V 2018; 153:884-885. [DOI: 10.23736/s0392-0488.17.05572-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
3
|
Israel L, Mellett M. Clinical and Genetic Heterogeneity of CARD14 Mutations in Psoriatic Skin Disease. Front Immunol 2018; 9:2239. [PMID: 30386326 PMCID: PMC6198054 DOI: 10.3389/fimmu.2018.02239] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/10/2018] [Indexed: 01/14/2023] Open
Abstract
The CARD: BCL10: MALT1 (CBM) complex is an essential signaling node for maintaining both innate and adaptive immune responses. CBM complex components have gained considerable interest due to the dramatic effects of associated mutations in causing severe lymphomas, immunodeficiencies, carcinomas and inflammatory disease. While MALT1 and BCL10 are ubiquitous proteins, the CARD-containing proteins differ in their tissue expression. CARD14 is primarily expressed in keratinocytes. The CARD14-BCL10-MALT1 complex is activated by upstream pathogen-associated molecular pattern-recognition in vitro, highlighting a potentially crucial role in innate immune defense at the epidermal barrier. Recent findings have demonstrated how CARD14 orchestrates activation of the NF-κB and MAPK signaling pathways via recruitment of BCL10 and MALT1, leading to the upregulation of pro-inflammatory genes encoding IL-36γ, IL-8, Ccl20 and anti-microbial peptides. Following the identification of CARD14 gain-of function mutations as responsible for the psoriasis susceptibility locus PSORS2, the past years have witnessed a large volume of case reports and association studies describing CARD14 variants as causal or predisposing to a wide range of inflammatory skin disorders. Recent publications of mouse models also helped to better understand the physiological contribution of CARD14 to psoriasis pathogenesis. In this review, we summarize the clinical, genetic and functional aspects of human and murine CARD14 mutations and their contribution to psoriatic disease pathogenesis.
Collapse
Affiliation(s)
- Laura Israel
- Novartis Institutes for BioMedical Research, Novartis Campus, Basel, Switzerland
| | - Mark Mellett
- Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| |
Collapse
|
4
|
Kilic S, Ozdemir O, Silan F, Isik S, Yildiz O, Karaagacli D, Silan C, Ogretmen Z. Possible association between germline methylenetetrahydrofolate reductase gene polymorphisms and psoriasis risk in a Turkish population. Clin Exp Dermatol 2018; 42:8-13. [PMID: 28028860 DOI: 10.1111/ced.12909] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND Psoriasis is a common chronic inflammatory skin disease caused by genetic and epigenetic factors. There are conflicting results in the literature about the association between psoriasis and the methylenetetrahydrofolate reductase gene (MTHFR), ranging from strong linkage to no association. AIM To investigate the association between the germline MTHFR polymorphisms C677T and A1298C with psoriasis risk in a Turkish population. METHODS The study enrolled 84 patients with psoriasis and 212 healthy controls (HCs) without any history of psoriasis. DNA was extracted from peripheral blood samples of patients and HCs, and real-time PCR was used for genotyping. Results were compared by Pearson χ² test and multiple logistic regression models. RESULTS The frequency of both the MTHFR 677TT and A1298C (homozygous) genotypes was statistically significantly different from HCs. Point mutations were detected in all patients with early-onset psoriasis (before the age of 20 years). The T allele of MTHFR 677 and the C allele of MTHFR 1298 increased psoriasis risk by 12.4- and 17.0-fold, respectively, in patients compared with HCs. CONCLUSION A possible association was detected betweengermline MTHFR 677 C>T and 1298 A>C genotypes and psoriasis risk in a Turkish population. These results need to be confirmed in further studies with larger sample sizes.
Collapse
Affiliation(s)
- S Kilic
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - O Ozdemir
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - F Silan
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - S Isik
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - O Yildiz
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - D Karaagacli
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - C Silan
- Department of Pharmacology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Z Ogretmen
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| |
Collapse
|
5
|
The E3 Ubiquitin Ligase RNF7 Negatively Regulates CARD14/CARMA2sh Signaling. Int J Mol Sci 2017; 18:ijms18122581. [PMID: 29194363 PMCID: PMC5751184 DOI: 10.3390/ijms18122581] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 12/13/2022] Open
Abstract
The three CARD-containing MAGUK (CARMA) proteins function as scaffolding molecules that regulate activation of the pro-inflammatory transcription factor NF-κB. Recently, mutations in CARMA2 have been linked to psoriasis susceptibility due to their acquired altered capacity to activate NF-κB. By means of two-hybrid screening with yeast, we identified RING finger protein 7 (RNF7) as an interactor of CARMA2. We present evidence that RNF7 functions as a negative regulator of the NF-κB-activating capacity of CARMA2. Mechanistically, RNF7 influences CARMA2 signaling by regulating the ubiquitination state of MALT1 and the NF-κB-regulatory molecule NEMO. Interestingly, CARMA2short (CARMA2sh) mutants associated with psoriasis susceptibility escape the negative control exerted by RNF7. In conclusion, our findings identify a new mechanism through which the ability of CARMA2 to activate NF-κB is regulated, which could have significant implications for our understanding of why mutations of this protein trigger human psoriasis.
Collapse
|
6
|
Zeng J, Luo S, Huang Y, Lu Q. Critical role of environmental factors in the pathogenesis of psoriasis. J Dermatol 2017; 44:863-872. [PMID: 28349593 DOI: 10.1111/1346-8138.13806] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 01/22/2017] [Indexed: 12/21/2022]
Abstract
Psoriasis is a common cutaneous disease with multifactorial etiology including genetic and non-genetic factors, such as drugs, smoking, drinking, diet, infection and mental stress. Now, the role of the interaction between environmental factors and genetics are considered to be a main factor in the pathogenesis of psoriasis. However, it is a challenge to explore the mechanisms how the environmental factors break the body balance to affect the onset and development of psoriasis. In this article, we review the pathogenesis of psoriasis and summarize numerous clinical data to reveal the association between environmental factors and psoriasis. In addition, we focus on the mechanisms of environmental risk factors impact on psoriasis and provide a series of potential treatments against environmental risk factors.
Collapse
Affiliation(s)
- Jinrong Zeng
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Shuaihantian Luo
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Yumeng Huang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| |
Collapse
|
7
|
CARD14-Mediated Activation of Paracaspase MALT1 in Keratinocytes: Implications for Psoriasis. J Invest Dermatol 2017; 137:569-575. [DOI: 10.1016/j.jid.2016.09.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/20/2016] [Accepted: 09/28/2016] [Indexed: 11/21/2022]
|
8
|
Zhu K, Shi G, Liu H, Zhu C, Fan Y. Variants of CARD14 gene and psoriasis vulgaris in southern Chinese cohort. An Bras Dermatol 2016; 91:45-8. [PMID: 26982778 PMCID: PMC4782646 DOI: 10.1590/abd1806-4841.20164016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 03/09/2015] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND: Recent mutation analysis identified several missense mutations in CARD14 in
psoriasis. OBJECTIVES: We performed the genomic sequence analysis on CARD14 in southern Chinese Han
Cantonese with Psoriasis Vulgaris (PsV) to reveal more causative missense
mutations. METHODS: A total of 131 patients with PsV and 207 matched controls were included. We
conducted sequence analysis of all the exon and exon-intron boundaries of
CARD14 in the group of PsV patients and subsequent case control analysis of
potential sequence variants of significance. RESULTS: We found five rare mutations and four of them are annotated or reported. Only
the variant (c.1291C>G) has not been reported and annotated, but the
variant was also found in controls. No significant difference was detected
among all rare variant allele frequencies of patients and controls. CONCLUSION: None of the new definite variants were pathogenic. The other pathogenic
mutations for PsV are still elusive in our cohort.
Collapse
Affiliation(s)
- Kunju Zhu
- Institute of Mycology, Jinan University, Guangzhou, China
| | - Ge Shi
- Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Huan Liu
- Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Chengyao Zhu
- Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Yiming Fan
- Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| |
Collapse
|
9
|
Increased Risk of Psoriasis due to combined effect of HLA-Cw6 and LCE3 risk alleles in Indian population. Sci Rep 2016; 6:24059. [PMID: 27048876 PMCID: PMC4822143 DOI: 10.1038/srep24059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 03/16/2016] [Indexed: 11/29/2022] Open
Abstract
HLA-Cw6 is one of the most associated alleles in psoriasis. Recently, Late Cornified Envelop 3 (LCE3) genes were identified as a susceptibility factor for psoriasis. Some population showed epistatic interaction of LCE3 risk variants with HLA-Cw6, while some population failed to show any association. We determined the associations of a 32.2 kb deletion comprising LCE3C-3B genes and three SNPs (rs1886734, rs4112788; rs7516108) at the LCE3 gene cluster among the psoriasis patients in India. All three SNPs at the LCE3 gene cluster failed to show any association. In contrary, for patients with HLA-Cw6 allele, all three SNPs and the LCE3C-3B deletion showed significant associations. While, all five LCE3 genes were upregulated in psoriatic skin, only LCE3A showed significant overexpression with homozygous risk genotype compared to the non-risk genotype. LCE3B also showed significant overexpression in patients with HLA-Cw6 allele. Moreover, LCE3A showed significantly higher expression in patients bearing homozygous risk genotype in presence of HLA-Cw6 allele but not in those having non-risk genotype, demonstrating the combined effect of HLA-Cw6 allele and risk associated genotype near LCE3A gene. Integration of genetic and gene expression data thus allowed us to identify the actual disease variants at the LCE3 cluster among the psoriasis patients in India.
Collapse
|
10
|
Ammar M, Jordan CT, Cao L, Lim E, Bouchlaka Souissi C, Jrad A, Omrane I, Kouidhi S, Zaraa I, Anbunathan H, Mokni M, Doss N, Guttman-Yassky E, El Gaaied AB, Menter A, Bowcock AM. CARD14 alterations in Tunisian patients with psoriasis and further characterization in European cohorts. Br J Dermatol 2015; 174:330-7. [PMID: 26358359 DOI: 10.1111/bjd.14158] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Rare highly penetrant gain-of-function mutations in caspase recruitment domain family, member 14 (CARD14) can lead to psoriasis, a chronic inflammatory disease of the skin and other organs. OBJECTIVES To investigate the contribution of rare CARD14 variants to psoriasis in the Tunisian population and to expand knowledge of CARD14 variants in the European population. METHODS CARD14 coding exons were resequenced in patients with psoriasis and controls from Tunisia and Europe, including 16 European cases with generalized pustular psoriasis (GPP). Novel variants were evaluated for their effect on nuclear factor (NF)-κB signalling. RESULTS Rare variants in CARD14 were significantly enriched in Tunisian cases compared with controls. Three were collectively found in 5% of Tunisian cases, and all affected the N-terminal region of the protein harbouring its caspase recruitment domain or coiled-coil domain. These variants were c.349G>A (p.Gly117Ser), c.205C>T (p.Arg69Trp) and c.589G>A (p.Glu197Lys). c.589G>A (p.Glu197Lys) led to upregulation of NF-κB activity in a similar manner to that of previously described psoriasis-associated mutations. p.Arg69Trp led to sevenfold downregulation of NF-κB activity. One Tunisian case harboured a c.1356+5G>A splice alteration that is predicted to lead to loss of exon 9, which encodes part of the coiled-coil domain. No cases of GPP harboured an interleukin-36RN mutation, but one of 16 cases of GPP with a family history of psoriasis vulgaris harboured a c.1805C>T (p.Ser602Leu) mutation in CARD14. CONCLUSIONS These observations provide further insights into the genetic basis of psoriasis in the Tunisian population and provide functional information on novel CARD14 variants seen in cases from Tunisia and other populations.
Collapse
Affiliation(s)
- M Ammar
- Laboratoire de Génétique d'Immunologie et de Pathologies Humaines, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - C T Jordan
- Division of Human Genetics, Department of Genetics, Washington University School of Medicine, St Louis, MO, 63110, U.S.A
| | - L Cao
- Division of Human Genetics, Department of Genetics, Washington University School of Medicine, St Louis, MO, 63110, U.S.A
| | - E Lim
- Division of Human Genetics, Department of Genetics, Washington University School of Medicine, St Louis, MO, 63110, U.S.A
| | - C Bouchlaka Souissi
- Laboratoire de Génétique d'Immunologie et de Pathologies Humaines, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - A Jrad
- Unité de Recherche de Physiologie des Agressions: Etudes Métaboliques et Endocriniennes, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - I Omrane
- Laboratoire de Génétique d'Immunologie et de Pathologies Humaines, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - S Kouidhi
- Laboratoire de Génétique d'Immunologie et de Pathologies Humaines, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - I Zaraa
- Department of Dermatology, La Rabta Hospital of Tunis, Tunis, Tunisia
| | - H Anbunathan
- National Heart and Lung Institute, Imperial College London, London, SW3 6LY, U.K
| | - M Mokni
- Department of Dermatology, La Rabta Hospital of Tunis, Tunis, Tunisia
| | - N Doss
- Department of Dermatology, Military Hospital of Tunis, Tunis, Tunisia
| | - E Guttman-Yassky
- Department of Dermatology and the Immunology Institute, Icahn School of Medicine at the Mount Sinai Medical Center, NY, U.S.A
| | - A B El Gaaied
- Laboratoire de Génétique d'Immunologie et de Pathologies Humaines, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - A Menter
- Division of Dermatology, Baylor University Medical Center, Junius St, Suite 145, Dallas 3900, TX, 75246, U.S.A
| | - A M Bowcock
- Division of Human Genetics, Department of Genetics, Washington University School of Medicine, St Louis, MO, 63110, U.S.A.,National Heart and Lung Institute, Imperial College London, London, SW3 6LY, U.K
| |
Collapse
|
11
|
Activating CARD14 Mutations Are Associated with Generalized Pustular Psoriasis but Rarely Account for Familial Recurrence in Psoriasis Vulgaris. J Invest Dermatol 2015. [PMID: 26203641 DOI: 10.1038/jid.2015.288] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Caspase recruitment family member 14 (CARD14, also known as CARMA2), is a scaffold protein that mediates NF-κB signal transduction in skin keratinocytes. Gain-of-function CARD14 mutations have been documented in familial forms of psoriasis vulgaris (PV) and pityriasis rubra pilaris (PRP). More recent investigations have also implicated CARD14 in the pathogenesis of pustular psoriasis. Follow-up studies, however, have been limited, so that it is not clear to what extent CARD14 alleles account for the above conditions. Here, we sought to address this question by carrying out a systematic CARD14 analysis in an extended patient cohort (n=416). We observed no disease alleles in subjects with familial PV (n=159), erythrodermic psoriasis (n=23), acral pustular psoriasis (n=100), or sporadic PRP (n=29). Conversely, our analysis of 105 individuals with generalized pustular psoriasis (GPP) identified a low-frequency variant (p.Asp176His) that causes constitutive CARD14 oligomerization and shows a significant association with GPP in Asian populations (P=8.4×10(-5); odds ratio=6.4). These data indicate that the analysis of CARD14 mutations could help stratify pustular psoriasis cohorts but would be mostly uninformative in the context of psoriasis and sporadic PRP.
Collapse
|
12
|
Chandra A, Ray A, Senapati S, Chatterjee R. Genetic and epigenetic basis of psoriasis pathogenesis. Mol Immunol 2015; 64:313-23. [PMID: 25594889 DOI: 10.1016/j.molimm.2014.12.014] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 12/20/2014] [Accepted: 12/26/2014] [Indexed: 01/06/2023]
Abstract
Psoriasis is a chronic inflammatory skin disease whose prevalence varies among different populations worldwide. It is a complex multi-factorial disease and the exact etiology is largely unknown. Family based studies have indicated a genetic predisposition; however they cannot fully explain the disease pathogenesis. In addition to genetic susceptibility, environmental as well as gender and age related factors were also been found to be associated. Recently, imbalances in epigenetic networks are indicated to be causative elements in psoriasis. The present knowledge of epigenetic involvement, mainly the DNA methylation, chromatin modifications and miRNA deregulation is surveyed here. An integrated approach considering genetic and epigenetic anomalies in the light of immunological network may explore the pathogenesis of psoriasis.
Collapse
Affiliation(s)
- Aditi Chandra
- Human Genetics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India
| | - Aditi Ray
- Human Genetics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India
| | | | - Raghunath Chatterjee
- Human Genetics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
| |
Collapse
|
13
|
Failure to find evidence for deletion of LCE3C and LCE3B genes at PSORS4 contributing to psoriasis susceptibility in Tunisian families. ACTA ACUST UNITED AC 2014; 62:34-7. [PMID: 24485035 DOI: 10.1016/j.patbio.2013.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 10/08/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND Recently, it has been shown that a deletion in the late cornified envelope (LCE) gene cluster (LCE3C_LCE3B-del) is associated with susceptibility to psoriasis in European and Asian populations. However, no study of this deletion has been performed in the North African population. The aim of the present study was to investigate whether this deletion is associated with familial psoriasis in Tunisian population. METHODS A total of 34 patients and 55 healthy individuals were recruited from 7 multiplex families and a PCR assay was used to determine the association of this deletion. Its effect on susceptibility to psoriasis was assessed using the PDT program. RESULTS We failed to detect any evidence of association between LCE3C_LCE3B-del and psoriasis in Tunisian families. No epistasic effect was found between the deletion and PSORS1 locus. CONCLUSIONS These findings indicate that the LCE3C_LCE3B-del does not contribute in a major way to psoriasis susceptibility in Tunisian families.
Collapse
|
14
|
Ammar M, Souissi-Bouchlaka C, Gati A, Zaraa I, Bouhaha R, Kouidhi S, Ben Ammar-Gaied A, Doss N, Mokni M, Marrakchi R. [Psoriasis: physiopathology and immunogenetics]. ACTA ACUST UNITED AC 2013; 62:10-23. [PMID: 24589075 DOI: 10.1016/j.patbio.2013.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 07/05/2013] [Indexed: 01/17/2023]
Abstract
Psoriasis is a multifactorial disease that involves genetic, immunological and environmental factors. During the last decade, several studies by genome scan on families or cases/controls helped to highlight more than ten loci "PSORS" located on different chromosomes and containing several candidate genes. Psoriasis appears as a genetic disease that follows the mixed model with the involvement of a major gene (PSORS1) and a set of minor genes with a variable penetrance depending on the locus. Genetic data have focused on the involvement of the immune system in the pathogenesis of psoriasis. It is now accepted that psoriasis is an immunological disease involving the response profiles TH1 and TH17. Much remains to be done to better elucidate the mechanisms involved in the genesis of psoriatic lesions to find new therapeutic targets.
Collapse
Affiliation(s)
- M Ammar
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie.
| | - C Souissi-Bouchlaka
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| | - A Gati
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| | - I Zaraa
- Service de dermatologie, hôpital la Rabta, 1007 Tunis, Tunisie
| | - R Bouhaha
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| | - S Kouidhi
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| | - A Ben Ammar-Gaied
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| | - N Doss
- Service de dermatologie, hôpital militaire de Tunis, rue Raouth Ibnou Hatem, Tunis, Tunisie
| | - M Mokni
- Service de dermatologie, hôpital la Rabta, 1007 Tunis, Tunisie
| | - R Marrakchi
- Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie
| |
Collapse
|