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Niehues H, van der Krieken DA, Ederveen THA, Jansen PAM, van Niftrik L, Mesman R, Netea MG, Smits JPH, Schalkwijk J, van den Bogaard EH, Zeeuwen PLJM. Antimicrobial late cornified envelope (LCE) proteins: the psoriasis risk factor LCE3B/C-del affects microbiota composition. J Invest Dermatol 2021; 142:1947-1955.e6. [PMID: 34942199 DOI: 10.1016/j.jid.2021.11.036] [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: 03/06/2021] [Revised: 11/03/2021] [Accepted: 11/22/2021] [Indexed: 12/20/2022]
Abstract
Late cornified envelope (LCE) proteins are predominantly expressed in the skin and other cornified epithelia. Based on sequence similarity, this eighteen-member homologous gene family has been subdivided into six groups. The LCE3 proteins have been the focus of dermatological research, as the combined deletion of LCE3B and LCE3C genes (LCE3B/C-del) is a risk factor for psoriasis. We previously reported that LCE3B/C-del increases expression of the LCE3A gene and that LCE3 proteins exert antibacterial activity. In the current study we analyzed the antimicrobial properties of other family members and the role of LCE3B/C-del in modulation of microbiota composition of the skin and oral cavity. Differences in killing efficiency and specificity between the LCE proteins and their target microbes were found, and the amino acid content, rather than the order, of the well-conserved central domain of the LCE3A protein was found responsible for its antibacterial activity. In vivo, LCE3B/C-del correlated with a higher beta-diversity in the skin and oral microbiota. From these results we conclude that all LCE proteins possess antimicrobial activity. Tissue-specific and genotype-dependent antimicrobial protein profiles impact skin and oral microbiota composition, which could direct towards LCE3B/C-del associated dysbiosis and a possible role for microbiota in the pathophysiology of psoriasis.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Danique A van der Krieken
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Thomas H A Ederveen
- Center for Molecular and Biomolecular Informatics, RIMLS, Radboudumc, Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Laura van Niftrik
- Department of Microbiology, Institute for Water and Wetland Research, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Rob Mesman
- Department of Microbiology, Institute for Water and Wetland Research, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, RIMLS, Radboudumc, Nijmegen, The Netherlands; Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Jos P H Smits
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands.
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Zhu C, Fei W, Wang W, Tang L, Gao J, Zhou F. Copy Number Variation Analysis of IL22 and LCE3C in Different Subtypes of Psoriasis in a Chinese Han Population. Med Sci Monit 2021; 27:e934927. [PMID: 34853291 PMCID: PMC8650389 DOI: 10.12659/msm.934927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/04/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Psoriasis is a chronic, immune-mediated and hyperproliferative skin disease with both genetic and environmental components. Copy number variations (CNV) of IL22 and LCE3C-LCE3B deletion have been confirmed to be predisposed to psoriasis vulgaris (PsV) in several ethnic groups. However, it remains to be clarified whether CNVs of IL22 and LCE3C are associated with different subtypes of psoriasis (psoriatic arthritis, PsA; erythrodermic psoriasis, EP; and generalized pustular psoriasis, GPP). MATERIAL AND METHODS We enrolled 897 Han Chinese individuals, including 478 patients and 419 healthy controls, and detected CNVs of IL22 and LCE3C using the comparative CT method by real-time PCR, and Pearson's χ² test was used to evaluated the copy number difference among subtypes. RESULTS CNVs of IL22 were significantly higher in PsV than in healthy controls (P<0.001). CNV of LCE3C in PsV, PsA, and GPP groups were significantly lower compared to healthy controls. When linked with clinical parameters, mild psoriasis carried less IL22 copy numbers than that in severe psoriasis (P=0.043). Neither IL22 or LCE3C CNVs were associated with age of onset. CONCLUSIONS CNVs of LCE3C and IL22 might differentially contribute to subtypes of psoriasis. These findings suggest complex and diverse genetic variations in and among different clinical subtypes of psoriasis.
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Affiliation(s)
- Caihong Zhu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Wenmin Fei
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Wenjun Wang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
| | - Lili Tang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
| | - Jinping Gao
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
| | - Fusheng Zhou
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, PR China
- The Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, PR China
- Collaborative Innovation Center for Complex and Severe Dermatosis, Anhui Medical University, Hefei, Anhui, PR China
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Abstract
The skin is the first line of defense against the environment, with the epidermis as the outermost tissue providing much of the barrier function. Given its direct exposure to and encounters with the environment, the epidermis must evolve to provide an optimal barrier for the survival of an organism. Recent advances in genomics have identified a number of genes for the human skin barrier that have undergone evolutionary changes since humans diverged from chimpanzees. Here, we highlight a selection of key and innovative genetic findings for skin barrier evolution in our divergence from our primate ancestors and among modern human populations.
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Affiliation(s)
- Erin A. Brettmann
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for Pharmacogenomics, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA
| | - Cristina de Guzman Strong
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for Pharmacogenomics, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA
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Psoriasis in Skin of Color: Insights into the Epidemiology, Clinical Presentation, Genetics, Quality-of-Life Impact, and Treatment of Psoriasis in Non-White Racial/Ethnic Groups. Am J Clin Dermatol 2018; 19:405-423. [PMID: 29209945 DOI: 10.1007/s40257-017-0332-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Psoriasis is a chronic inflammatory skin condition affecting diverse racial/ethnic groups throughout the world. Large population-based studies suggest that psoriasis occurs most often in individuals of European ancestry, followed by black and Hispanic individuals, although the true prevalence of psoriasis in non-white individuals is likely underestimated. Despite similarities in psoriasis between ethnic groups, there are notable differences in the presentation, quality-of-life impact, and treatment of psoriasis with important implications for the management of non-white individuals. Overall, heterogeneity in psoriasis susceptibility alleles, in combination with cultural and socioeconomic factors, may explain these differences. In this article, we review the epidemiology, clinical presentation, genetic polymorphisms, quality-of-life impact, and treatment nuances of psoriasis in patients with skin of color.
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Beirne A, Stone RC, Miteva M. SnapshotDx Quiz: April 2018. J Invest Dermatol 2018; 138:e35. [PMID: 29579459 DOI: 10.1016/j.jid.2018.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Audrey Beirne
- Department of Dermatology and Cutaneous Surgery, University of Miami L. Miller School of Medicine
| | - Rivka C Stone
- Department of Dermatology and Cutaneous Surgery, University of Miami L. Miller School of Medicine
| | - Mariya Miteva
- Department of Dermatology and Cutaneous Surgery, University of Miami L. Miller School of Medicine.
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Bioactive Dietary VDR Ligands Regulate Genes Encoding Biomarkers of Skin Repair That Are Associated with Risk for Psoriasis. Nutrients 2018; 10:nu10020174. [PMID: 29401702 PMCID: PMC5852750 DOI: 10.3390/nu10020174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/05/2018] [Accepted: 01/30/2018] [Indexed: 01/10/2023] Open
Abstract
Treatment with 1,25-dihydroxyvitamin D3 (1,25D) improves psoriasis symptoms, possibly by inducing the expression of late cornified envelope (LCE)3 genes involved in skin repair. In psoriasis patients, the majority of whom harbor genomic deletion of LCE3B and LCE3C (LCE3C_LCE3B-del), we propose that certain dietary analogues of 1,25D activate the expression of residual LCE3A/LCE3D/LCE3E genes to compensate for the loss of LCE3B/LCE3C in the deletant genotype. Herein, human keratinocytes (HEKn) homozygous for LCE3C_LCE3B-del were treated with docosahexaenoic acid (DHA) and curcumin, two low-affinity, nutrient ligands for the vitamin D receptor (VDR). DHA and curcumin induce the expression of LCE3A/LCE3D/LCE3E mRNAs at concentrations corresponding to their affinity for VDR. Moreover, immunohistochemical quantitation revealed that the treatment of keratinocytes with DHA or curcumin stimulates LCE3 protein expression, while simultaneously opposing the tumor necrosis factor-alpha (TNFα)-signaled phosphorylation of mitogen activated protein (MAP) kinases, p38 and Jun amino-terminal kinase (JNK), thereby overcoming inflammation biomarkers elicited by TNFα challenge. Finally, DHA and curcumin modulate two transcription factors relevant to psoriatic inflammation, the activator protein-1 factor Jun B and the nuclear receptor NR4A2/NURR1, that is implicated as a mediator of VDR ligand-triggered gene control. These findings provide insights into the mechanism(s) whereby dietary VDR ligands alter inflammatory and barrier functions relevant to skin repair, and may provide a molecular basis for improved treatments for mild/moderate psoriasis.
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Niehues H, Tsoi LC, van der Krieken DA, Jansen PAM, Oortveld MAW, Rodijk-Olthuis D, van Vlijmen IMJJ, Hendriks WJAJ, Helder RW, Bouwstra JA, van den Bogaard EH, Stuart PE, Nair RP, Elder JT, Zeeuwen PLJM, Schalkwijk J. Psoriasis-Associated Late Cornified Envelope (LCE) Proteins Have Antibacterial Activity. J Invest Dermatol 2017. [PMID: 28634035 DOI: 10.1016/j.jid.2017.06.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Terminally differentiating epidermal keratinocytes express a large number of structural and antimicrobial proteins that are involved in the physical barrier function of the stratum corneum and provide innate cutaneous host defense. Late cornified envelope (LCE) genes, located in the epidermal differentiation complex on chromosome 1, encode a family of 18 proteins of unknown function, whose expression is largely restricted to epidermis. Deletion of two members, LCE3B and LCE3C (LCE3B/C-del), is a widely-replicated psoriasis risk factor that interacts with the major psoriasis-psoriasis risk gene HLA-C*06. Here we performed quantitative trait locus analysis, utilizing RNA-seq data from human skin and found that LCE3B/C-del was associated with a markedly increased expression of LCE3A, a gene directly adjacent to LCE3B/C-del. We confirmed these findings in a 3-dimensional skin model using primary keratinocytes from LCE3B/C-del genotyped donors. Functional analysis revealed that LCE3 proteins, and LCE3A in particular, have defensin-like antimicrobial activity against a variety of bacterial taxa at low micromolar concentrations. No genotype-dependent effect was observed for the inside-out or outside-in physical skin barrier function. Our findings identify an unknown biological function for LCE3 proteins and suggest a role in epidermal host defense and LCE3B/C-del-mediated psoriasis risk.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA; Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA; Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Danique A van der Krieken
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Merel A W Oortveld
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Ivonne M J J van Vlijmen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Wiljan J A J Hendriks
- Department of Cell Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Richard W Helder
- Leiden Academic Center for Drug Research, Department of Drug Delivery Technology, Gorlaeus Laboratories, Leiden University, Leiden, The Netherlands
| | - Joke A Bouwstra
- Leiden Academic Center for Drug Research, Department of Drug Delivery Technology, Gorlaeus Laboratories, Leiden University, Leiden, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Philip E Stuart
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Rajan P Nair
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - James T Elder
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA; Ann Arbor Veterans Affairs Hospital, Ann Arbor, Michigan, USA
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands.
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Association of the late cornified envelope-3 genes with psoriasis and psoriatic arthritis: a systematic review. J Genet Genomics 2015; 42:49-56. [PMID: 25697099 DOI: 10.1016/j.jgg.2015.01.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 12/28/2014] [Accepted: 01/04/2015] [Indexed: 01/10/2023]
Abstract
Psoriasis (Ps) and psoriatic arthritis (PsA) are genetically complex diseases with strong genetic evidence. Recently, susceptibility genes for Ps and PsA have been identified within the late cornified envelop (LCE) gene cluster, especially the cluster 3 (LCE3) genes. It is noteworthy that the deletion of LCE3B and LCE3C (LCE3C_LCE3B-del) is significantly associated with these two diseases. Gene-gene interactions between LCE3 genes and other genes are associated with Ps and PsA. LCE3 genes also have pleiotropic effect on some autoimmune diseases, such as rheumatoid arthritis, atopic dermatitis and systemic lupus erythematosus. Further studies need to focus on the potential function of LCE3 genes in the pathogenesis of Ps and PsA in the future.
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Regulation of late cornified envelope genes relevant to psoriasis risk by plant-derived cyanidin. Biochem Biophys Res Commun 2014; 443:1275-9. [PMID: 24393842 DOI: 10.1016/j.bbrc.2013.12.128] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 12/25/2013] [Indexed: 12/14/2022]
Abstract
The PSORS4 genetic risk factor for psoriasis is a deletion of two late cornified envelope (LCE) genes (LCE3C_LCE3Bdel) in a cluster of five LCE3 genes with a proposed role in skin repair. We previously showed that 1,25-dihydroxyvitamin D3 (1,25D) modestly upregulates transcripts from all five LCE3 genes as monitored by real time PCR in primary human keratinocytes. Herein we report that cyanidin, a plant-derived compound with anti-inflammatory/anti-oxidant properties, upregulates expression of all five LCE3 genes in cultures of differentiating primary human keratinocytes to a greater extent that does 1,25D. This action of cyanidin is dependent on the differentiation state of the keratinocytes, with a stronger effect after the cells have been incubated with 1.2mM calcium for 24h. Competition displacement assays using radiolabeled 1,25D revealed that cyanidin directly competes as a ligand for vitamin D receptor (VDR) binding with an estimated IC50 of 500μM. However, 20μM cyanidin is sufficient to upregulate LCE3 genes. The 25-fold discrepancy between the cyanidin concentration required for upregulating LCE3 genes in intact keratinocytes vs. that required for direct binding to VDR in vitro suggests that cyanidin may be: (a) metabolized to a more active VDR ligand in keratinocytes and/or (b) functioning via a non-VDR mediated mechanism. The fact that cyanidin is the most potent upregulator of global LCE3 gene expression reported to date suggests that this or related compounds may have potential in psoriasis therapy.
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