51
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Tsai TF. Heterogeneity of generalized pustular psoriasis in multiethnic Johor Bahru, Malaysia. Br J Dermatol 2023; 189:361-362. [PMID: 37379585 DOI: 10.1093/bjd/ljad197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/04/2023] [Indexed: 06/30/2023]
Affiliation(s)
- Tsen-Fang Tsai
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
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52
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Xian N, Bai R, Guo J, Luo R, Lei H, Wang B, Zheng Y. Bioinformatics analysis to reveal the potential comorbidity mechanism in psoriasis and nonalcoholic steatohepatitis. Skin Res Technol 2023; 29:e13457. [PMID: 37753698 PMCID: PMC10474328 DOI: 10.1111/srt.13457] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
PURPOSE An increasing amount of evidence suggests that psoriasis and nonalcoholic steatohepatitis (NASH) may occur simultaneously, whereas the underlying mechanisms remain unclear. Our research aims to explore the potential comorbidity mechanism in psoriasis and nonalcoholic steatohepatitis. MATERIALS AND METHODS The expression profiles of psoriasis (GSE30999, GSE13355) and NASH (GSE24807, GSE17470) were downloaded from GEO datasets. Next, common differently expressed genes (DEGs) of psoriasis and NASH were investigated. Then, GO and KEGG enrichment, protein interaction network (PPI) construction, and hub gene identification for DEGs were performed. Finally, immune cells expression, target genes predicted by common miRNAs, and transcription factors interaction analysis for hub genes were carried out. RESULTS Twenty DEGs were identified in totally. GO analysis revealed response to the virus was the most enriched term, and hepatitis C and coronavirus disease-COVID-19 infection-associated pathways were mainly enriched in KEGG. A total of eight hub genes were collected, including IFIT1, IFIT3, OAS1, HPGDS, IFI27, IFI44, CXCL10, IRF9, and 11 TFs were predicted. Then, neutrophils and monocytes were identified as immune cells that express the most hub genes. Moreover, five common miRNAs for psoriasis and NASH and one common miRNAs (hsa-miR-1305)-mRNAs (CHL1, MBNL2) network were presented. CONCLUSION CHL1 and MBNL2 may participate in the process of psoriasis and NASH via regulating hsa-miR-1305, and together with eight hub genes may be potential therapeutic targets for future treatment for the co-occurrence of these two diseases. This comprehensive bioinformatic analysis provides new insights on molecular pathogenesis and identification of potential therapeutic targets for the co-occurrence of them.
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Affiliation(s)
- Ningyi Xian
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Ruimin Bai
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Jiaqi Guo
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Ruiting Luo
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Hao Lei
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Bingqing Wang
- Department of Dermatologythe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
| | - Yan Zheng
- Department of Dermatologythe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxiChina
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53
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Liu L, Chen J, Tang K, Li F, Li S, Ding X. Pustular Psoriasis in a Patient Treated with Dupilumab for Atopic Dermatitis: A Case Report. Clin Cosmet Investig Dermatol 2023; 16:2217-2221. [PMID: 37601418 PMCID: PMC10437099 DOI: 10.2147/ccid.s420904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023]
Abstract
Psoriasis and atopic dermatitis are relatively common in clinical practice, but it is rare for the two diseases to co-occur in the same patient. Dupilumab, an anti-IL-4/IL-13 monoclonal antibody, has been approved for treating moderate to severe AD. In addition to its therapeutic effects, dupilumab may induce new cutaneous adverse reactions. We report a rare case of pustular psoriasis induced during the treatment of atopic dermatitis with dupilumab. This case demonstrates the need for caution while treating patients with moderate to severe atopic dermatitis and staying vigilant for the emergence of new symptoms, especially with biological agents.
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Affiliation(s)
- Li Liu
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Jie Chen
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Kangheng Tang
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Feng Li
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Si Li
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Xiaojie Ding
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
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54
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Lin YC, Jeng YC, Aala WJF, Hong YK, Chen PH, Chuang YR, Yang CC, Hsu CK. Transcriptomic responses of peripheral blood mononuclear cells to cyclosporin and etanercept in a female infant with juvenile generalized pustular psoriasis. Exp Dermatol 2023; 32:1299-1305. [PMID: 37194367 DOI: 10.1111/exd.14835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/18/2023]
Abstract
Generalized pustular psoriasis (GPP) is a rare but severe form of psoriasis. An early onset of the diseases is correlated with mutations among IL36RN, CARD14, AP1S3, MPO and SERPINA3 genes. Systemic biological agents including anti-TNF-α, anti-IL-17, anti-IL-12/IL-23, anti-IL1R, anti-IL1β and anti-IL-36R act as novel treatment methods for GPP. Herein we report a female infant clinically diagnosed with GPP since she was 10-month-old. Results of whole-exome sequencing (WES) and Sanger sequencing revealed a reported heterozygous IL36RN (c.115+6T>C) and another reported heterozygous SERPINA3 frame-shifting variant (c.1247_1248del). Initial cyclosporin treatment for the patient led to a partial remission of the symptoms. However, the patient reached nearly total remission of pustules and erythema after anti-TNF-α inhibitor etanercept treatment. Results of further RNA sequencing (RNA-seq) done on peripheral blood mononuclear cells correlated with the clinical responses, showing that cyclosporin suppressed a portion of the neutrophil-related genes, while most genes associated with neutrophil activation, neutrophil-mediated immunity and degranulation were downregulated by the subsequent etanercept treatment. We report this case to demonstrate WES and RNA-seq in combination could come in handy in reaching a precise diagnosis and in evaluating or even predicting the molecular alterations underlying clinical treatment effectiveness.
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Affiliation(s)
- Yu-Chen Lin
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration (iWRR), National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chen Jeng
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wilson Jr F Aala
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Kai Hong
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration (iWRR), National Cheng Kung University, Tainan, Taiwan
| | - Pin-Hsuan Chen
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Ru Chuang
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chao-Chun Yang
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chao-Kai Hsu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration (iWRR), National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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55
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Kodali N, Blanchard I, Kunamneni S, Lebwohl MG. Current management of generalized pustular psoriasis. Exp Dermatol 2023; 32:1204-1218. [PMID: 36779681 DOI: 10.1111/exd.14765] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/06/2023] [Accepted: 02/08/2023] [Indexed: 02/14/2023]
Abstract
Generalized pustular psoriasis (GPP) is a rare subset of psoriasis involving episodes of sterile pustules accompanied by inflammation and, often, systemic involvement. The inflammatory nature of GPP has potential for severe multisystem complications including high-output cardiac failure, infections, digestive system issues, and disfiguring or lethal acute flare episodes. The disease tends to have higher prevalence in females and Asians. The IL-1/IL-36 inflammatory pathway is a critical facet of GPP's pathology. Genetic mutations that are associated with GPP include modifications of Interleukin 36 Receptor Antagonist (IL36RN), Caspase Recruitment Domain Family Member 14 (CARD14), Adaptor Related Protein Complex 1 Subunit Sigma 3 (AP1S3), Myeloperoxidase (MPO) and Serpin Peptidase Inhibitor Clade A Member 3 (SERPINA3) genes. Treatment guidelines for GPP are not well-entrenched. Currently, only one GPP-specific treatment, the interleukin-36 receptor antagonist (IL-36Ra) spesolimab, has been approved for use in the United States. Additional anti-IL-36 pathway therapies are currently being developed. Other treatment options include other biologic therapies such as IL-17 inhibitors, IL-23 inhibitors and TNFα inhibitors. Non-biologic therapeutic options include retinoids, cyclosporine and methotrexate. Treatment options differ throughout the world; most countries utilize retinoids, cyclosporine and methotrexate as first-line non-biologic options. China and United Kingdom have no GPP-specific biologic therapies approved for use, while several biologic therapies are approved for use in Japan. This review aims to serve as an update on the current global management of GPP while also including relevant aspects of disease pathogenesis, diagnosis, clinical presentation, histopathology, aetiology and epidemiology.
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Affiliation(s)
- Nilesh Kodali
- Department of Education, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Isabella Blanchard
- Department of Education, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Sruthi Kunamneni
- Department of Education, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Mark G Lebwohl
- Dermatology, The Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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56
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Capon F. A viewpoint on the genetic determinants of generalised pustular psoriasis. Exp Dermatol 2023; 32:1188-1193. [PMID: 36645252 DOI: 10.1111/exd.14746] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/17/2023]
Abstract
Generalised pustular psoriasis (GPP) is a rare and severe neutrophilic skin disorder, manifesting with acute episodes of pustulation and systemic upset. The discovery of recessive IL36RN mutations associated with GPP has transformed our understanding of disease drivers, paving the way for the development of targeted anti-IL36 therapeutics. In the light of these remarkable successes, this viewpoint reviews the significance of IL36RN mutations in GPP, their functional impact and their correlation with clinical phenotypes. It then covers the discovery of further genetic determinants (recessive MPO mutations) and risk factors (AP1S3 and CARD14 low-frequency variants) for the disease. It discusses the growing evidence for genetic complexity in GPP and concludes by outlining collaborative strategies that may be adopted to overcome the challenges ahead.
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Affiliation(s)
- Francesca Capon
- Department of Medical and Molecular Genetics, School of Basic and Medical Biosciences, King's College London, London, UK
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57
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Choon SE, Elewski BE, Fujita H, Geng S, van de Kerkhof P, Mburu S, Puig L, Romiti R, Venturini M. Diversity in the clinical presentation of generalized pustular psoriasis (GPP): A series of case vignettes from around the world. Exp Dermatol 2023; 32:1284-1295. [PMID: 36999936 DOI: 10.1111/exd.14794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 02/19/2023] [Indexed: 04/01/2023]
Abstract
A key principle of clinical studies and case reports is that they should reflect the demographics and epidemiology of the patient population concerned. Here, we have compiled a diverse group of clinical cases of generalized pustular psoriasis (GPP) to showcase the differences in GPP presentation in patients worldwide. We attempt to capture the broad spectrum of clinical presentations of GPP and showcase the diversity of the patient population. The patients included in this series are diverse in age, genetic background, skin phototype and medical history. Moreover, they present with a variety of clinical courses of GPP and different degrees of systemic involvement, and experience flares triggered by different inciting factors. The key learnings from this case series may support physicians in identifying and managing patients with this rare and multifaceted disease that can affect patients both physically and psychologically.
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Affiliation(s)
- Siew Eng Choon
- Department of Dermatology, Hospital Sultanah Aminah, and Clinical School Johor Bahru, Monash University Malaysia, Subang Jaya, Malaysia
| | - Boni E Elewski
- University of Alabama School of Medicine, Birmingham, Alabama, USA
| | | | - Songmei Geng
- Second Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | | | - Sicily Mburu
- IFPA (International Federation of Psoriasis Associations), Stockholm, Sweden
| | - Lluís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Ricardo Romiti
- Department of Dermatology, University of São Paulo, São Paulo, Brazil
| | - Marina Venturini
- Department of Dermatology ASST-Spedali Civili Hospital, University of Brescia, Brescia, Italy
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58
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Choon SE, Tok PSK, Wong KW, Lim YT, Nanu NM, Barker JN, Capon F. Clinical profile of patients with acute generalized pustular psoriasis with and without IL36RN mutations in multi-ethnic Johor Bahru, Malaysia. Exp Dermatol 2023; 32:1263-1271. [PMID: 36843152 DOI: 10.1111/exd.14776] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/11/2023] [Accepted: 02/19/2023] [Indexed: 02/28/2023]
Abstract
Generalized Pustular psoriasis (GPP), a rare and potentially life-threatening auto-inflammatory disease, is associated with IL36RN mutations. Here, we analyse the prevalence of IL36RN mutations in our multi-ethnic GPP cohort and assess differences in the clinical profile of patients with (IL36RN-positive) and without (IL36RN-negative) mutations. IL36RN mutations were present in 17.7% of 137 GPP patients (29.7% of Chinese cases, 17.3% of Malay cases, but 0% of Indian patients). 92% of these individuals carried the c.115 + 6 T > C mutation. Male: female ratio was 1:2.3. Females predominate in both groups with no significant difference between IL36RN-positive and IL36RN-negative individuals. The overall mean age (±SD) at disease onset for GPP was 37.6 ± 17.2 years, but disease onset was significantly earlier in IL36RN-positive vs IL36RN-negative cases (mean age:30.6 ± 18.92 vs. 39.2 ± 16.49 years, p = 0.027). IL36RN-positive patients were less likely to have associated plaque psoriasis (52.4% vs. 83.5%, p-value = 0.002). There was no difference in the common clinical and laboratory manifestations or triggers of GPP between IL36RN-positive and -negative patients, except for geographic tongue which was significantly more common in IL36RN-positive patients (41.7% vs. 11.9%, p-value = 0.002). Annual flare rate was significantly higher in IL36RN-positive compared to IL36RN-negative (mean ± SD of 1.92 ± 1.32 vs. 1.46 ± 0.90, p = 0.041) cases. However, no significant difference in the rate of hospitalization and length of hospital stay was observed between the two groups. These observations demonstrate that IL36RN disease alleles occur with varying frequencies among Asian populations and are associated with a severe, early-onset clinical phenotype.
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Affiliation(s)
- Siew Eng Choon
- Department of Dermatology, Hospital Sultanah Aminah Johor Bahru, Johor Bahru, Malaysia
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine & Health Sciences, Monash University, Kuala Lumpur, Malaysia
| | - Peter Seah Keng Tok
- Institute for Clinical Research, National Institutes of Health, Ministry of Health Malaysia, Putrajaya, Malaysia
| | - Kit Wan Wong
- Department of Dermatology, Hospital Sultanah Aminah Johor Bahru, Johor Bahru, Malaysia
| | - Yee Ting Lim
- Department of Dermatology, Hospital Sultanah Aminah Johor Bahru, Johor Bahru, Malaysia
| | - Nalini M Nanu
- Department of Dermatology, Hospital Sultanah Aminah Johor Bahru, Johor Bahru, Malaysia
| | - Jonathan N Barker
- St John's Institute of Dermatology at Guys and St Thomas's Hospitals and Kings College London, London, UK
| | - Francesca Capon
- Department of Medical and Molecular Genetics, King's College London, London, UK
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59
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Young KZ, Sarkar MK, Gudjonsson JE. Pathophysiology of generalized pustular psoriasis. Exp Dermatol 2023; 32:1194-1203. [PMID: 36779688 PMCID: PMC10423307 DOI: 10.1111/exd.14768] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/25/2023] [Accepted: 02/09/2023] [Indexed: 02/14/2023]
Abstract
Psoriasis is a chronic, immune-mediated skin disease that affects over 3% of adults in the United States. Psoriasis can present in several clinical forms. Of these, generalized pustular psoriasis is an acute, severe form, associated with increased morbidity and mortality. Unlike the more common plaque psoriasis, which is thought to feature dysregulation of the adaptive immune system, generalized pustular psoriasis reflects heightened autoinflammatory responses. Recent advances in genetic and immunological studies highlight a key role of the IL-36 immune axis in the pathogenesis of generalized pustular psoriasis. In this article, we review the psoriatic subtypes and discuss diagnostic criteria of generalized pustular psoriasis, discuss several newly identified genetic variants associated with pustular disease in the skin, and discuss how these mutations shed light on pustular disease mechanisms. Furthermore, we gather insights from recent transcriptomic studies that similarly implicate a pathogenic role of the IL-36 immune axis in generalized pustular psoriasis.
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Affiliation(s)
| | - Mrinal K. Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, MI
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60
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Elewski BE, Lebwohl MG, Anadkat MJ, Barker J, Ghoreschi K, Imafuku S, Mrowietz U, Li L, Quaresma M, Thoma C, Bachelez H. Rapid and sustained improvements in Generalized Pustular Psoriasis Physician Global Assessment scores with spesolimab for treatment of generalized pustular psoriasis flares in the randomized, placebo-controlled Effisayil 1 study. J Am Acad Dermatol 2023; 89:36-44. [PMID: 36870370 DOI: 10.1016/j.jaad.2023.02.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/27/2023] [Accepted: 02/07/2023] [Indexed: 03/06/2023]
Abstract
BACKGROUND Effisayil 1 was a randomized, placebo-controlled study of spesolimab, which is an anti-IL-36 receptor antibody, in patients presenting with a generalized pustular psoriasis flare. OBJECTIVE To assess the effects of spesolimab over the 12-week study. METHODS The primary endpoint of the study was Generalized Pustular Psoriasis Physician Global Assessment (GPPGA) pustulation subscore of 0 at week 1. Patients (N = 53) were randomized (2:1) to receive a single intravenous dose of 900 mg spesolimab or placebo on day 1. Patients could receive open-label spesolimab for persistent flare symptoms on day 8. RESULTS Most patients receiving spesolimab achieved a GPPGA pustulation subscore of 0 (60.0%) and GPPGA total score of 0 or 1 (60.0%) by week 12. In patients randomized to placebo who received open-label spesolimab on day 8, the proportion with GPPGA pustulation subscore of 0 increased from 5.6% at day 8 to 83.3% at week 2. No factors predictive of spesolimab response were identified in patient demographics or clinical characteristics. LIMITATIONS The effect of initial randomization was not determined conventionally beyond week 1 due to patients receiving open-label spesolimab. CONCLUSION Rapid control of generalized pustular psoriasis flare symptoms with spesolimab was sustained over 12 weeks, further supporting its potential use as a therapeutic option for patients.
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Affiliation(s)
- Boni E Elewski
- University of Alabama School of Medicine, Birmingham, Alabama.
| | - Mark G Lebwohl
- Icahn School of Medicine at Mount Sinai, New York, New York
| | - Milan J Anadkat
- Division of Dermatology, Washington University School of Medicine, St. Louis, Missouri
| | - Jonathan Barker
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Kamran Ghoreschi
- Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Shinichi Imafuku
- Department of Dermatology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Ulrich Mrowietz
- Psoriasis-Center, Department of Dermatology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ling Li
- Boehringer Ingelheim Investment Co, Ltd, Shanghai, China
| | | | | | - Hervé Bachelez
- Service de Dermatologie, Assistance Publique-Hôpitaux de Paris Hôpital Saint-Louis, Paris, France; INSERM Unité 1163, Imagine Institute of Genetic Diseases, Université Paris Cité, Paris, France
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Tiucă OM, Morariu SH, Mariean CR, Tiucă RA, Nicolescu AC, Cotoi OS. Research Hotspots in Psoriasis: A Bibliometric Study of the Top 100 Most Cited Articles. Healthcare (Basel) 2023; 11:1849. [PMID: 37444683 DOI: 10.3390/healthcare11131849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
(1) Introduction: Psoriasis is a chronic, immune-mediated disease that negatively impacts patients' quality of life and predisposes them to cardiovascular or metabolic diseases. This paper aims to summarize the knowledge structure and future directions in psoriasis research by means of bibliometrics. (2) Material and methods: The Thomson Reuters Web of Science database was interrogated using preestablished keywords. A list of the top 100 most cited articles focusing solely on psoriasis was compiled and analyzed. VOSviewer software was used to assess and visualize collaboration networks, citation, co-citation and co-wording analysis, and bibliographic coupling. (3) Results: The articles were written by 902 authors from 20 countries and were published in 31 journals. The United States was at the forefront of this field. Griffiths, CEM had the most citations, while the most prolific institution was Rockefeller University, New York City. Pathogenesis, especially key-pathogenic factors, immune pathways, and epidemiology were the most discussed topics. Work published in the last decade focused on the use of biologics. Keywords such as "quality of life", "efficacy", and "necrosis-factor alpha" have been widely used. (4) Conclusion: Research interest regarding psoriasis is high, leading to the rapid development of this field. Treatment modalities, especially novel-targeted therapies, immune pathways, and an integrative approach to such cases are receiving great interest and represent research hotspots in the future.
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Affiliation(s)
- Oana Mirela Tiucă
- Doctoral School of Medicine and Pharmacy, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Dermatology Department, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Dermatology Clinic, Mures Clinical County Hospital, 540342 Targu Mures, Romania
| | - Silviu Horia Morariu
- Dermatology Department, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Dermatology Clinic, Mures Clinical County Hospital, 540342 Targu Mures, Romania
| | - Claudia Raluca Mariean
- Doctoral School of Medicine and Pharmacy, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Pathophysiology Department, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
| | - Robert Aurelian Tiucă
- Doctoral School of Medicine and Pharmacy, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Endocrinology Department, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Endocrinology Department, Mures Clinical County Hospital, 540139 Targu Mures, Romania
| | | | - Ovidiu Simion Cotoi
- Pathophysiology Department, University of Medicine, Pharmacy, Science, and Technology George Emil Palade of Targu Mures, 540142 Targu Mures, Romania
- Pathology Department, Mures Clinical County Hospital, 540011 Targu Mures, Romania
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62
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Jensen LE. Pellino Proteins in Viral Immunity and Pathogenesis. Viruses 2023; 15:1422. [PMID: 37515108 PMCID: PMC10383966 DOI: 10.3390/v15071422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/16/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Pellino proteins are a family of evolutionarily conserved ubiquitin ligases involved in intracellular signaling in a wide range of cell types. They are essential for microbe detection and the initiation of innate and adaptive immune responses. Some viruses specifically target the Pellino proteins as part of their immune evasion strategies. Through studies of mouse models of viral infections in the central nervous system, heart, lungs, and skin, the Pellino proteins have been linked to both beneficial and detrimental immune responses. Only in recent years have some of the involved mechanisms been identified. The objective of this review is to highlight the many diverse aspects of viral immunity and pathogenesis that the Pellino proteins have been associated with, in order to promote further research into their functions. After a brief introduction to the cellular signaling mechanisms involving Pellino proteins, their physiological roles in the initiation of immune responses, pathogenesis through excess inflammation, immune regulation, and cell death are presented. Known viral immune evasion strategies are also described. Throughout, areas that require more in-depth investigation are identified. Future research into the functions of the Pellino protein family may reveal fundamental insights into how our immune system works. Such knowledge may be leveraged in the fight against viral infections and their sequala.
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Affiliation(s)
- Liselotte E Jensen
- Department of Microbiology, Immunology and Inflammation, Center for Inflammation and Lung Research, Temple University Lewis Katz School of Medicine, Philadelphia, PA 19140, USA
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Yang SF, Lin MH, Chou PC, Hu SK, Shih SY, Yu HS, Yu S. Genetics of Generalized Pustular Psoriasis: Current Understanding and Implications for Future Therapeutics. Genes (Basel) 2023; 14:1297. [PMID: 37372477 DOI: 10.3390/genes14061297] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/11/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by the appearance of clearly demarcated erythematous and scaly plaques. It can be divided into various types, including plaque, nail, guttate, inverse, and pustular psoriasis. Plaque psoriasis is the most commonly occurring type, though there is another rare but severe pustular autoinflammatory skin disease called generalized pustular psoriasis (GPP), which manifests with acute episodes of pustulation and systemic symptoms. Though the etiopathogenesis of psoriasis is not yet fully understood, a growing body of literature has demonstrated that both genetic and environmental factors play a role. The discovery of genetic mutations associated with GPP has shed light on our comprehension of the mechanisms of the disease, promoting the development of targeted therapies. This review will summarize genetic determinants as known and provide an update on the current and potential treatments for GPP. The pathogenesis and clinical presentation of the disease are also included for a comprehensive discussion.
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Affiliation(s)
- Syuan-Fei Yang
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Min-Huei Lin
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Pei-Chen Chou
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Sheng-Kai Hu
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Sin-Yi Shih
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hsin-Su Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Sebastian Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Bhutani T, Hawkes JE. Exploring the Clinical Features, Immunopathogenesis and Approach to Diagnosis for Generalized Pustular Psoriasis [Podcast]. Clin Cosmet Investig Dermatol 2023; 16:1553-1558. [PMID: 37351064 PMCID: PMC10282158 DOI: 10.2147/ccid.s424073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/24/2023]
Abstract
Generalized pustular psoriasis is a rare presentation of psoriatic disease and is characterized by the acute onset of diffuse superficial pustules on the skin. These pustules can often coalesce, forming what's known as 'lakes of pus' that are most often seen on the trunk and on skin folds. GPP flares are often accompanied by systemic symptoms, including fever, malaise, and edema. The interleukin (IL)-36 pathway plays a central role in the development of GPP, although several other genes may be associated. The rarity of GPP makes its diagnosis challenging and it could be mistaken for an infectious condition or other types of pustular psoriasis, including unstable forms of plaque psoriasis that may present with pustules. Performing a thorough skin examination and obtaining a detailed history are vital to exclude these differential diagnoses. Incorrect or late diagnosis, inadequate or delayed treatment, and lack of specialist referrals may contribute to increased disease severity and can have a debilitating impact on patients' quality of life. In this podcast, two US-based dermatologists discuss the clinical characteristics of GPP, highlight the central role of IL-36 in immunopathogenesis, and share practical approaches to recognizing and diagnosing the disease.
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Affiliation(s)
- Tina Bhutani
- Psoriasis and Skin Treatment Center, Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Jason E Hawkes
- Department of Dermatology, University of California at Davis, Sacramento, CA, USA
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Chen Q, Gao N, Yu FS. Interleukin-36 Receptor Signaling Attenuates Epithelial Wound Healing in C57BL/6 Mouse Corneas. Cells 2023; 12:1587. [PMID: 37371057 DOI: 10.3390/cells12121587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The IL-36 cytokines are known to play various roles in mediating the immune and inflammatory response to tissue injury in a context-dependent manner. This study investigated the role of IL-36R signaling in mediating epithelial wound healing in normal (NL) and diabetic (DM) C57BL/6 mouse corneas. The rate of epithelial wound closure was significantly accelerated in IL-36 receptor-deficient (IL-36R-/-) compared to wild-type (WT) mice. Wounding increased IL-36α and -36γ but repressed IL-36R antagonist (IL-36Ra) expression in B6 mouse corneal epithelial cells. The wound-induced proinflammatory cytokines CXCL1 and CXCL2 were dampened, while the antimicrobial peptides (AMPs) S100A8 and A9 were augmented in IL-36R-/- mouse corneas. Intriguingly, the expression of AMP LCN2 was augmented at the mRNA level. LCN2 deficiency resulted in an acceleration of epithelial wound healing. IL-36R deficiency also greatly increased the healing rate of the corneal epithelial wound in DM mice. IL-36R deficiency also suppressed IL-1β, IL-1Ra, and ICAM expression in unwounded-DM mice and wounded NL corneas. Opposing IL-1β and ICAM, the expression of IL-Ra in DM corneas of IL-36R-/- mice was augmented. The presence of recombinant IL-1Ra and IL-36Ra accelerated epithelial wound closure in T1DM corneas of B6 mice. Our study revealed an unprecedented role of IL-36R signaling in controlling corneal epithelial wound healing in normal (NL) and diabetic (DM) mice. Our data suggest that IL-36Ra, similar to IL-1Ra, might be a therapeutic reagent for improving wound healing and reducing wound-associated ulceration, particularly in the cornea and potentially in the skin of DM patients.
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Affiliation(s)
- Qi Chen
- Departments of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Nan Gao
- Departments of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Fu-Shin Yu
- Departments of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA
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Navarini AA, Prinz JC, Morita A, Tsai TF, Viguier MA, Li L, Thoma C, Sivalingam M, Lebwohl MG. Spesolimab improves patient-reported outcomes in patients with generalized pustular psoriasis: Results from the Effisayil 1 study. J Eur Acad Dermatol Venereol 2023; 37:730-736. [PMID: 36527385 DOI: 10.1111/jdv.18820] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/10/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Generalized pustular psoriasis (GPP) is a rare inflammatory skin disease with a considerable clinical burden. In the Effisayil™ 1 study, spesolimab, an anti-interleukin-36 receptor monoclonal antibody, demonstrated efficacy in treating GPP flares. OBJECTIVES To evaluate patient-reported outcomes (PROs) of patients with GPP who were treated with intravenous (IV) spesolimab 900 mg in the Effisayil™ 1 study. METHODS Fifty-three patients presenting with a GPP flare were randomized (2:1) to receive a single dose of IV spesolimab 900 mg or placebo and were followed for 12 weeks. Four PROs (pain visual analogue scale [pain VAS]; Functional Assessment of Chronic Illness Therapy-Fatigue [FACIT-Fatigue]; Dermatology Life Quality Index [DLQI]; and Psoriasis Symptom Scale [PSS]) were assessed throughout the 12-week study. Minimal clinically important differences (MCIDs) were defined. All data are reported descriptively. RESULTS In patients who received spesolimab, improvements from baseline (median [Q1, Q3]) were observed in pain VAS (-21.3 [-55.3, -3.1]), FACIT-Fatigue (7.0 [1.0, 20.0]), DLQI (-2.5 [-8.0, 1.0]) and PSS (-4.0 [-7.0, 0.0]) within 1 week of treatment. These improvements were sustained over 12 weeks and corresponded to the achievement of MCIDs at Week 1, which were also sustained over 12 weeks. Patients in the placebo arm experienced improvements in PROs and achievement of MCIDs after receipt of open-label spesolimab at Week 1. CONCLUSIONS Patients with a GPP flare treated with spesolimab achieved improvements in PROs by Week 1, which were sustained for 12 weeks, and achieved MCIDs as early as Week 1.
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Affiliation(s)
- Alexander A Navarini
- Department of Dermatology and Allergy, University Hospital Basel, Basel, Switzerland
| | - Jörg C Prinz
- Department of Dermatology and Allergy, University Clinics, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - Akimichi Morita
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tsen-Fang Tsai
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | | | - Ling Li
- Boehringer Ingelheim (China) Investment Co., Ltd, Shanghai, China
| | | | | | - Mark G Lebwohl
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Hüffmeier U, Klima J, Hayatu MD. Genetic underpinnings of the psoriatic spectrum. MED GENET-BERLIN 2023; 35:46-54. [PMID: 38835412 PMCID: PMC10842586 DOI: 10.1515/medgen-2023-2005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The psoriatic field includes both rare and common subtypes. Common complex forms include psoriasis vulgaris and psoriatic arthritis. In these subtypes, certain HLA alleles remain the most relevant genetic factors, although genome-wide association studies lead to the detection of more than 80 susceptibility loci. They mainly affect innate and adaptive immunity and explain over 28 % of the heritability. Pustular psoriasis comprises a group of rarer subtypes. Using exome sequencing, several disease genes were identified for mainly generalized pustular psoriasis, and an oligogenic inheritance is likely. Treatment studies based on the affected IL-36 pathway indicate a high response rate in this subtype further supporting the pathophysiological relevance of the affected gene products.
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Affiliation(s)
- Ulrike Hüffmeier
- Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg Institute of Human Genetics Schwabachanlage 10 91054 Erlangen Deutschland
| | - Janine Klima
- Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg Institute of Human Genetics Schwabachanlage 10 91054 Erlangen Germany
| | - Mohammad Deen Hayatu
- Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg Institute of Human Genetics Schwabachanlage 10 91054 Erlangen Germany
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Puig L, Choon SE, Gottlieb AB, Marrakchi S, Prinz JC, Romiti R, Tada Y, von Bredow D, Gooderham M. Generalized pustular psoriasis: A global Delphi consensus on clinical course, diagnosis, treatment goals and disease management. J Eur Acad Dermatol Venereol 2023; 37:737-752. [PMID: 36606566 DOI: 10.1111/jdv.18851] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/29/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Generalized pustular psoriasis (GPP) is a rare and highly heterogeneous skin disease, characterized by flares of neutrophilic pustules and erythema. As a rare disease with few clinical studies and no standardized management approaches, there is a paucity of knowledge regarding GPP. OBJECTIVES Conduct a Delphi panel study to identify current evidence and gain advanced insights into GPP. METHODS A systematic literature review was used to identify published literature and develop statements categorized into four key domains: clinical course and flare definition; diagnosis; treatment goals; and holistic management. Statements were rated on a Likert scale by a panel of dermatologists in two rounds of online questionnaires; the threshold for consensus was agreement by ≥80%. RESULTS Twenty-one panellists reached consensus on 70.9%, 61.8%, 100.0% and 81.8% of statements in the 'clinical course and flare definition', 'diagnosis', 'treatment goals' and 'holistic management of GPP' domains, respectively. There was clear consensus on GPP being phenotypically, genetically and immunologically distinct from plaque psoriasis. Clinical course is highly variable, with an extensive range of complications. Clinical and histologic features supporting GPP diagnosis reached high levels of agreement, and although laboratory evaluations were considered helpful for diagnosis and monitoring disease severity, there was uncertainty around the value of individual tests. All acute and long-term treatment goals reached consensus, including rapid and sustained clearance of pustules, erythema, scaling and crust, clearance of skin lesions and prevention of new flares. Potential triggers, associated comorbidities and differential diagnoses achieved low rates of consensus, indicating that further evidence is needed. CONCLUSIONS Global consensus between dermatologists was reached on clinically meaningful goals for GPP treatment, on key features of GPP flares and on approaches for assessing disease severity and multidisciplinary management of patients. On this basis, we present a management algorithm for patients with GPP for use in clinical practice.
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Affiliation(s)
- Lluís Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Siew Eng Choon
- Department of Dermatology, Hospital Sultanah Aminah, and Clinical School Johor Bahru, Monash University Malaysia, Johor Bahru, Malaysia
| | - Alice B Gottlieb
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Slaheddine Marrakchi
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Jörg C Prinz
- Department of Dermatology and Allergy, Ludwig-Maximilian-University Munich, Munich, Germany
| | - Ricardo Romiti
- Department of Dermatology, University of São Paulo, São Paulo, Brazil
| | - Yayoi Tada
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | | | - Melinda Gooderham
- School of Medicine, Queen's University and Centre for Dermatology and Probity Medical Research, Peterborough, Ontario, Canada
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Müller VL, Kreuter A. [Remission of recalcitrant generalized pustular psoriasis under interleukin-36 receptor inhibitor spesolimab]. DERMATOLOGIE (HEIDELBERG, GERMANY) 2023; 74:356-359. [PMID: 36943426 PMCID: PMC10029782 DOI: 10.1007/s00105-023-05140-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 03/10/2023] [Indexed: 03/23/2023]
Abstract
Generalized pustular psoriasis (GPP) is often a life-threatening disease which, in contrast to psoriasis vulgaris, is associated with the formation of sterile pustules on the skin. Until recently, there was no approved treatment in Europe, so that drugs used for psoriasis vulgaris were also frequently used for GPP. However, new studies showed that, in GPP, mutation of the interleukin-36 receptor often leads to increased inflammation and corresponding disease activity. We report a case of GPP with complete remission after two doses of spesolimab, a new interleukin-36 receptor antibody.
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Affiliation(s)
- Valentina Laura Müller
- Klinik für Dermatologie, Venerologie und Allergologie, Helios Klinikum Duisburg, Duisburg, Deutschland
| | - Alexander Kreuter
- Klinik für Dermatologie, Venerologie und Allergologie, Helios Klinikum Duisburg, Duisburg, Deutschland.
- Klinik für Dermatologie, Venerologie und Allergologie, Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland.
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Abstract
Interleukin (IL)-36 cytokines are members of the IL-1 superfamily of cytokines. IL-36 cytokines are composed of three agonists (IL-36α, IL-36β, and IL-36γ) and two antagonists (IL-36 receptor antagonist [IL36Ra] and IL-38). These work in innate and acquired immunity and are known to contribute to host defense and to the pathogenesis of autoinflammatory diseases, autoimmune diseases, and infectious diseases. In the skin, IL-36α and IL-36γ are mainly expressed by keratinocytes in the epidermis, although they are also produced by dendritic cells, macrophages, endothelial cells, and dermal fibroblasts. IL-36 cytokines participate in the first-line defense of the skin against various exogenous assaults. IL-36 cytokines play significant roles in the host defense system and in the regulation of inflammatory pathways in the skin, collaborating with other cytokines/chemokines and immune-related molecules. Thus, numerous studies have shown IL-36 cytokines to play important roles in the pathogenesis of various skin diseases. In this context, the clinical efficacy and safety profiles of anti-IL-36 agents such as spesolimab and imsidolimab have been evaluated in patients with generalized pustular psoriasis, palmoplantar pustulosis, hidradenitis suppurativa, acne/acneiform eruptions, ichthyoses, and atopic dermatitis. This article comprehensively summarizes the roles played by IL-36 cytokines in the pathogenesis and pathophysiology of various skin diseases and summarizes the current state of research on therapeutic agents that target IL-36 cytokine pathways.
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Dermatologic Manifestations of Noninflammasome-Mediated Autoinflammatory Diseases. JID INNOVATIONS 2023; 3:100176. [PMID: 36876221 PMCID: PMC9982332 DOI: 10.1016/j.xjidi.2022.100176] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022] Open
Abstract
Autoinflammatory diseases (AIDs) arise from disturbances that alter interactions of immune cells and tissues. They give rise to prominent (auto)inflammation in the absence of aberrant autoantibodies and/or autoreactive T cells. AIDs that are predominantly caused by changes in the inflammasome pathways, such as the NLRP3- or pyrin-associated inflammasome, have gained substantial attention over the last years. However, AIDs resulting primarily from other changes in the defense system of the innate immune system are less well-studied. These noninflammasome-mediated AIDs relate to, for example, disturbance in the TNF or IFN signaling pathways or aberrations in genes affecting the IL-1RA. The spectrum of clinical signs and symptoms of these conditions is vast. Thus, recognizing early cutaneous signs constitutes an important step in differential diagnoses for dermatologists and other physicians. This review provides an overview of the pathogenesis, clinical presentation, and available treatment options highlighting dermatologic aspects of noninflammasome-mediated AIDs.
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Key Words
- AID, autoinflammatory disease
- ANCA, antineutrophil cytoplasmic antibody
- AOSD, adult-onset Still disease
- BASDAI, Bath Ankylosing Spondylitis Activity Index
- CANDLE, chronic atypical neutrophilic dermatosis with lipodystrophy and elevated temperature
- CAPS, cryopyrin-associated periodic syndrome
- CRD, cysteine-rich domain
- DIRA, deficiency of IL-1RA
- DITRA, deficiency of IL-36RA
- ER, endoplasmic reticulum
- ESR, erythrocyte sedimentation rate
- FMF, familial Mediterranean fever
- M-CSF, macrophage colony-stimulating factor
- MAS, macrophage activation syndrome
- NET, neutrophil extracellular trap
- NOS, nitrous oxide
- NSAID, nonsteroidal anti-inflammatory drug
- NUD, neutrophilic urticarial dermatosis
- PFAPA, periodic fever, aphthous stomatitis, pharyngitis, and adenitis
- PKR, protein kinase R
- PRAAS, proteosome-associated autoinflammatory disease
- SAPHO, synovitis, acne, pustulosis, hyperostosis, osteitis syndrome
- SAVI, STING-associated vasculopathy with onset in infancy
- STAT, signal transducer and activator of transcription
- SchS, Schnitzler syndrome
- TNFR, TNF receptor
- TRAPS, TNF receptor‒associated autoinflammatory disease
- Th17, T helper 17
- VAS, Visual Analog Scale
- sTNFR, soluble TNF receptor
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Naik HB, Cowen EW. Reply-Response to Anakinra for refractory pustular psoriasis: A phase II, open label, dose-escalation trial. J Am Acad Dermatol 2023; 88:743-744. [PMID: 36370903 DOI: 10.1016/j.jaad.2022.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Haley B Naik
- Department of Dermatology, University of California, San Francisco, California.
| | - Edward W Cowen
- Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland
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Newly revealed variants of SERPINA3 in generalized pustular psoriasis attenuate inhibition of ACT on cathepsin G. J Hum Genet 2023; 68:419-425. [PMID: 36828876 DOI: 10.1038/s10038-023-01139-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/26/2023]
Abstract
Generalized pustular psoriasis (GPP) is an autoinflammatory skin disease whose pathogenesis has not yet been fully elucidated. Alpha-1-antichymotrypsin(ACT) is a protein encoded by the SERPINA3 gene and an inhibitor of cathepsin G. One study of a European sample suggested that the loss of ACT function caused by SERPINA3 mutation is implicated in GPP. However, the role of SERPINA3 in the pathogenesis of GPP in other ethnic populations is unclear. To explore this, seventy children with GPP were performed next-generation sequencing to identify rare variants in the SERPINA3 gene. Bioinformatic analysis and functional tests were used to determine the effects of the variants, and a comprehensive analysis was performed to determine the pathogenicity of the variants and whether they are associated with GPP. One rare deletion and three rare missense variants were identified in the SERPINA3 gene in GPP. The deletion variant c.1246_1247del was found to result in a mutant protein with an extension of 10 amino acids and a C-terminal of 20 amino acids that was completely different from the wild-type. This mutant was found to impede secretion of ACT, thus failing to function as an inhibitor of cathepsin G. Two missense variants were found to reduce the ability of ACT to inhibit cathepsin G enzymatic activity. The association analysis suggested that the deletion variant is associated with GPP. This study identified four rare novel mutations of SERPINA3 and demonstrated that three of these mutations result in loss of function, contributing to the pathogenesis of pediatric-onset GPP in the Asian population.
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Ali F, Smith CH, Mahil SK. Spesolimab in the treatment of generalized pustular psoriasis: a critically appraised research paper. Br J Dermatol 2023; 188:328-329. [PMID: 36763745 DOI: 10.1093/bjd/ljac049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 01/22/2023]
Affiliation(s)
- Fatima Ali
- Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Catherine H Smith
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Satveer K Mahil
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
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Morita A, Tsai TF, Yee EYW, Okubo Y, Imafuku S, Zheng M, Li L, Quaresma M, Thoma C, Choon SE. Efficacy and safety of spesolimab in Asian patients with a generalized pustular psoriasis flare: Results from the randomized, double-blind, placebo-controlled Effisayil™ 1 study. J Dermatol 2023; 50:183-194. [PMID: 36282833 PMCID: PMC10092680 DOI: 10.1111/1346-8138.16609] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/24/2022] [Accepted: 09/27/2022] [Indexed: 02/04/2023]
Abstract
Generalized pustular psoriasis is a potentially life-threatening neutrophilic skin disease characterized by recurrent flares of widespread erythema and eruption of sterile pustules. In the Effisayil™ 1 study (NCT03782792), 53 patients with a generalized pustular psoriasis flare were treated with placebo or spesolimab, a humanized anti-interleukin-36 receptor monoclonal antibody, the first targeted treatment to be studied in a randomized clinical trial. Spesolimab treatment resulted in rapid pustular and skin clearance, with an acceptable safety profile. Here, we evaluate the efficacy and safety of spesolimab in 29 Asian patients in the Effisayil™ 1 study. The primary endpoint, a Generalized Pustular Psoriasis Physician Global Assessment (GPPGA) pustulation subscore of 0 (no visible pustules) at Week 1, was achieved by 10 patients (62.5%) randomized to spesolimab and one patient (7.7%) randomized to placebo (risk difference 54.8, 95% confidence interval [CI] 17.3-79.8). The key secondary endpoint, a GPPGA total score of 0 or 1 (clear or almost clear skin) at Week 1, was achieved by eight (50.0%) and two (15.4%) patients, respectively (risk difference 34.6, 95% CI -3.1-64.7). This was similar to previously published data in the overall population in whom the primary and key secondary endpoints were achieved by 54% versus 6% and 43% versus 11% of patients, respectively. The percentages of Asian patients randomized to spesolimab with a GPPGA pustulation subscore of 0 and GPPGA total score of 0 or 1 were sustained above 60% for up to 12 weeks. In these patients, patient-reported outcomes also improved and markers of systemic inflammation were normalized. Eleven (68.8%) and eight (61.5%) of spesolimab- and placebo-treated patients, respectively, experienced at least one adverse event. In conclusion, spesolimab improved outcomes in Asian patients compared with placebo, supporting its use in the treatment of generalized pustular psoriasis flares.
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Affiliation(s)
- Akimichi Morita
- Department of Geriatric and Environmental Dermatology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Tsen-Fang Tsai
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Evelyn Yap Wen Yee
- Department of Dermatology, Hospital Pakar Sultanah Fatimah, Muar, Malaysia
| | - Yukari Okubo
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - Shinichi Imafuku
- Department of Dermatology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Min Zheng
- Department of Dermatology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ling Li
- Boehringer Ingelheim (China) Investment Corporation Limited, Shanghai, People's Republic of China
| | | | | | - Siew Eng Choon
- Department of Dermatology, Hospital Sultanah Aminah, Johor Bahru, Malaysia, and Clinical School Johor Bahru, Monash University Malaysia, Johor Bahru, Malaysia
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76
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Prinz JC, Choon SE, Griffiths CEM, Merola JF, Morita A, Ashcroft DM, Viguier M. Prevalence, comorbidities and mortality of generalized pustular psoriasis: A literature review. J Eur Acad Dermatol Venereol 2023; 37:256-273. [PMID: 36331364 DOI: 10.1111/jdv.18720] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Generalized pustular psoriasis (GPP) is a rare auto-inflammatory skin disease characterised by acute episodes of sterile pustule formation. Diagnosis and treatment of the disease have historically been complicated by a lack of awareness, and no consistent global definition or clinical coding standards. Now acknowledged as a distinct clinical entity with a recognised genetic component, GPP can take a serious and life-threatening course due to systemic inflammatory complications and its association with various comorbidities. As with other rare diseases, there are significant challenges to understanding the epidemiology of GPP, notably a small patient population, non-standardised study methodologies and ethnic differences in its presentation. A clearer understanding of GPP is therefore required for clinicians to better manage patients with this rare condition. In this review article, we present an overview of the available data on GPP prevalence estimates in key demographics and report the frequency of genetic mutations associated with the disease. We detail the incidence of known comorbidities and summarise the data on mortality and assigned causes of death. Lastly, we discuss the various factors that impact the collection, interpretation and comparison of these data.
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Affiliation(s)
- Jörg C Prinz
- Department of Dermatology and Allergy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Siew Eng Choon
- Department of Dermatology, Hospital Sultanah Aminah, Clinical School Johor Bahru, Monash University Malaysia, Johor Bahru, Malaysia
| | - Christopher E M Griffiths
- Dermatology Centre, NIHR Manchester Biomedical Research Centre, University of Manchester, Manchester, UK
| | - Joseph F Merola
- Department of Dermatology and Medicine, Division of Rheumatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Akimichi Morita
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Darren M Ashcroft
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Manuelle Viguier
- Department of Dermatology-Venereology, Hôpital Robert Debré, Université Reims-Champagne Ardenne, Reims, France
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77
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Network-Based Assessment of Minimal Change Disease Identifies Glomerular Response to IL-7 and IL-12 Pathways Activation as Innovative Treatment Target. Biomedicines 2023; 11:biomedicines11010226. [PMID: 36672735 PMCID: PMC9856051 DOI: 10.3390/biomedicines11010226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/20/2022] [Accepted: 01/07/2023] [Indexed: 01/18/2023] Open
Abstract
Background: Minimal change disease (MCD), a major cause of nephrotic syndrome, is usually treated by corticosteroid administration. MCD unresponsiveness to therapy and recurrences are nonetheless frequently observed, particularly in adults. To explore MCD-related pathogenetic mechanisms and to identify novel drug targets ultimately contributing to novel therapeutic avenues with a certain specificity for MCD, we compared glomerular transcriptomes from MCD with membranous nephropathy (MN) patients and healthy controls. Methods: Renal biopsies from adult patients with MCD (n = 14) or MN (n = 12), and non-diseased controls (n = 8) were selected from the Norwegian Kidney Biopsy Registry. RNA for 75 base-pair paired-end RNASeq were obtained from laser capture micro-dissected (LCM) glomeruli from FFPE sections. Transcriptional landscapes were computed by combining pathway-centered analyses and network science methodologies that integrate multiple bioinformatics resources. Results: Compared to normal glomeruli, cells from MCD displayed an inflammatory signature apparently governed by the IL1 and IL7 systems. While enrichment of IL1 production and secretion was a shared feature of MCD and MN compared to normal tissue, responses involving IL7 pathway activation were unique to MCD. Indeed, IL7R expressed by glomeruli was the most upregulated gene of the interleukin family in MCD versus normal controls. IL7 pathway activation was paralleled by significant enrichment in adaptive immune system processes and transcriptional regulation and depletion in pathways related to energy metabolism and transcription. Downregulation of these organ function-related themes again occurred predominately in MCD and was significantly less pronounced in MN. Immunofluorescence and immunohistochemistry, respectively, confirmed the expression of phosphorylated IL-7 receptor alpha (IL7RA, CD127) and IL12 receptor beta 1 (IL12RB1) proteins. Conclusions: Gene expression profiling of archival FFPE-biopsies identifies MCD-specific signatures with IL7RA and IL12RB1 as novel targets for MCD treatment.
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78
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Tong X, Li Y, Tang X, Ding Y, Sun Y, Zheng L, Pan Y, Liu S. Case report: Infantile generalized pustular psoriasis with IL36RN and CARD14 gene mutations. Front Genet 2023; 13:1035037. [PMID: 36704338 PMCID: PMC9871360 DOI: 10.3389/fgene.2022.1035037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 12/16/2022] [Indexed: 01/12/2023] Open
Abstract
Infantile pustular psoriasis (IPP) is an extremely rare skin disease associated with genetic factors. Gene mutations of IL36RN (interleukin-36 receptor antagonist), CARD14 (caspase recruitment family member 14), and AP1S1 (the σ1C subunit of the adaptor protein complex 1) had been identified to be involved in the pathogenesis of IPP. IPP usually develops with no preceding psoriasis vulgaris (PV) or familial history. Here, we report a case of a 6-month-old infant and make the diagnosis of IPP by a series of examinations; subsequently, by detecting coexistent mutations of IL36RN and CARD14, the diagnosis is intensified from a genetic point of view. We treated the child with traditional oral and topical drugs regardless of the commonly used acitretin considering its potential side effects, such as skeletal toxicity, and the lesions got conspicuous improvement with much reduction of inflammation. Owing to the genetic mutation of IL-36, there had been reported cases focusing on anti-IL36 biological agents in the treatment of IPP, and it could be a new weapon to treat and improve such IL-36RN-deficient skin diseases.
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Affiliation(s)
- Xinyun Tong
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yang Li
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Xianfa Tang
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yantao Ding
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yao Sun
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Liyun Zheng
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yulong Pan
- The PLA Navy Anqing Hospital, Anqing, China
| | - Shengxiu Liu
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China,Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Hefei, China,*Correspondence: Shengxiu Liu,
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79
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Grolleau C, Calugareanu A, Demouche S, Nosbaum A, Staumont-Sallé D, Aubert H, Cassius C, Jachiet M, Saussine A, Bagot M, Bachelez H, Battistella M, Hotz C, Du Thanh A, Crépy MN, Bergerat D, Merandet M, Onifarasoaniaina R, Alberdi A, How-Kit A, Bouaziz JD, Le-Buanec H. IL-4/IL-13 Inhibitors for Atopic Dermatitis Induce Psoriatic Rash Transcriptionally Close to Pustular Psoriasis. J Invest Dermatol 2023; 143:711-721.e7. [PMID: 36610660 DOI: 10.1016/j.jid.2022.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 10/14/2022] [Accepted: 10/18/2022] [Indexed: 01/07/2023]
Abstract
Dupilumab is a therapeutic antibody targeting IL-4 and IL-13 receptor subunit alpha used for the treatment of patients with atopic dermatitis (AD). Cases of psoriasis-like reactions induced under dupilumab treatment (dupilumab-induced psoriatic eruption [DI-Pso]) for AD were recently reported. To understand the pathogenesis of DI-Pso, we performed gene expression profiling studies on skin biopsies of DI-Pso (n = 7) compared with those of plaque psoriasis, AD, and healthy controls (n = 4 each). Differential gene expression was performed using enrichment and Gene Ontology analysis. Gene expression was validated by qPCR, and protein levels were assessed by immunohistochemistry. Transcriptomic and protein analysis of DI-Pso compared with that of healthy controls, plaque psoriasis, and AD skins revealed activation of T helper 17/IL-23 pathways associated with a significant expression of IL-36, surrogate marker of pustular psoriasis. By contrast, T helper 2 representative genes' expression was strongly decreased in DI-Pso across comparison. Matching analysis with public data of pustular psoriasis skin corroborated that DI-Pso and pustular psoriasis upstream regulators overlap, greater than the overlap with plaque psoriasis. Furthermore, DI-Pso showed strongly decreased expression of many barrier skin genes compared with healthy controls, plaque psoriasis, and AD. Our data indicate that the pathogenesis of DI-Pso relied on a shift of skin immune responses from a T helper 2 to an IL-36 and T helper 17 polarization and on intensified skin barrier alterations.
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Affiliation(s)
- Chloé Grolleau
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Andreea Calugareanu
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France; Dermatology Department, University Hospital of Lyon, Lyon, France
| | - Sarah Demouche
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Audrey Nosbaum
- Dermatology Department, University Hospital of Lyon, Lyon, France
| | - Delphine Staumont-Sallé
- Dermatology Department, U1286 Inserm Lille Inflammation Translational Research Institute, University of Lille, Lille, France
| | - Hélène Aubert
- Dermatology Department, University Hospital of Nantes, Nantes, France
| | - Charles Cassius
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Marie Jachiet
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Anne Saussine
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Martine Bagot
- Dermatology Department, Saint Louis Hospital, Paris, France
| | - Hervé Bachelez
- Dermatology Department, Saint Louis Hospital, Paris, France; Laboratory of Genetic of Skin Diseases, INSERM U1163, Imagine Institute, University of Paris, Paris, France
| | | | - Claire Hotz
- Dermatology Department, Henri Mondor Hospital, Créteil, France
| | - Aurélie Du Thanh
- Dermatology Department, University Hospital of Montpellier, Montpellier, France
| | - Marie-Noëlle Crépy
- Dermatology Department, Paris University Hospital of Cochin, Paris, France
| | - David Bergerat
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | - Marine Merandet
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
| | | | - Antonio Alberdi
- Technological Platerform of Saint- Louis Research Institute (IRSL), Saint-Louis Hospital, University of Paris, Paris, France
| | - Alexandre How-Kit
- Laboratory of Genomics, Foundation Jean Dausset (CEPH), Paris, France
| | - Jean-David Bouaziz
- Dermatology Department, Saint Louis Hospital, Paris, France; Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France.
| | - Hélène Le-Buanec
- Saint-Louis Research Institute, INSERM U976 - HIPI Unit, University of Paris, Paris, France
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80
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Comparison of the Inflammatory Circuits in Psoriasis Vulgaris, Non‒Pustular Palmoplantar Psoriasis, and Palmoplantar Pustular Psoriasis. J Invest Dermatol 2023; 143:87-97.e14. [PMID: 35934055 DOI: 10.1016/j.jid.2022.05.1094] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/20/2022]
Abstract
Palmoplantar pustular psoriasis (PPPP) and non‒pustular palmoplantar psoriasis (NPPP) are localized, debilitating forms of psoriasis. The inflammatory circuits involved in PPPP and NPPP are not well-understood. To compare the cellular and immunological features that differentiate PPPP and NPPP, skin biopsies were collected from a total of 30 participants with PPPP, NPPP, and psoriasis vulgaris (PV) and from 10 healthy participants. A subset consented to a second biopsy after 3 additional weeks off medication. Histologic staining of lesional and nonlesional skin showed higher neutrophil counts in PPPP than in NPPP and PV and higher CD8+ T-cell counts in NPPP. RNA sequencing and transcriptional analysis of skin biopsies showed enhanced IFN-γ pathway activation in NPPP lesions but stronger signatures of IL-17 pathway and neutrophil-related genes (e.g., IL36A) in PPPP lesional skin. Serum analysis on the Olink platform detected higher concentrations of T helper type 1, IFN-γ‒inducible chemokines in NPPP, and higher neutrophil-associated cytokines in PPPP. Taken together, this evidence suggests more pronounced T helper 1‒mediated inflammation in NPPP than in PV and PPPP and stronger neutrophil-associated activity in PPPP than in NPPP and PV. These data support targeting inflammatory pathways associated with neutrophilic inflammation (e.g., IL-36 signaling) for therapeutic development in PPPP.
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81
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Nery FVR, Souza DAS, Dantas JBDL, Martins GB, Reis SRDA, Medrado ARAP. Oral manifestations in patients diagnosed with psoriasis: A systematic review. SPECIAL CARE IN DENTISTRY 2023; 43:29-39. [PMID: 35714330 DOI: 10.1111/scd.12733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 01/21/2023]
Abstract
AIMS To identify the main types of oral lesions associated with psoriasis. METHODS AND RESULTS It was a systematic review, based on a search performed in the PubMed/Medline, and Scielo databases, and an associated manual search. Descriptors were selected from DeCs/MeSH and the PICOS strategy (population, intervention, comparison, outcomes, and study design) was applied. Randomized clinical trials and retrospective and prospective studies published from 2000 to 2022 were included, according to the PRISMA parameters (Preferred Reporting Items for Systematic Reviews and Meta-Analysis), registered in the PROSPERO platform. The STROBE quality scale (Strengthening the Reporting of Observational studies in Epidemiology) was also used. One hundred fourteen articles were identified using the search strategy, and nine articles were found in the manual search. Of the sixty-six preselected articles, seven were included in the study. Although it was not possible to identify a specific oral lesion associated with psoriasis, there was a greater occurrence of geographic tongue, fissured tongue, and Candida sp. infection CONCLUSION: Evidence shows that although patients with psoriasis may exhibit lesions in the oral mucosa, they are not specific to this condition. Further epidemiological studies are needed to address the association of psoriasis with possible changes in the oral mucosa.
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Affiliation(s)
| | | | - Juliana Borges de Lima Dantas
- PhD student of the Pos-graduate Program in Interactive Processes of Organs and Systems in the Institute of Health Sciences of the Federal University of Bahia, Professor at Bahiana - School of Medicine and Public Health, Professor of Adventist College of Bahia, Cachoeira, Bahia, Brazil
| | - Gabriela Botelho Martins
- PhD in Clinical Stomatology from PUC-RS, Associate Professor of Health Sciences Institute of the Federal University of Bahia, Salvador, Bahia, Brazil
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82
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Wang S, Bai J, Qiao J. A Case Report of Possibly Related Acute Generalized Exanthematous Pustulosis with Staphylococcus pettenkoferi. Clin Cosmet Investig Dermatol 2023; 16:673-676. [PMID: 36960180 PMCID: PMC10029364 DOI: 10.2147/ccid.s399138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/05/2023] [Indexed: 03/19/2023]
Abstract
Acute generalized exanthematous pustulosis (AGEP), an uncommon severe cutaneous adverse reaction, is believed to be a T cell-mediated hypersensitivity reaction, of which the most common cause is medication. However, infections have also been reported to be associated with AGEP. Here, we present a case of AGEP possibly related with Staphylococcus pettenkoferi.
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Affiliation(s)
- Su Wang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
| | - Juan Bai
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
| | - Jianjun Qiao
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
- Correspondence: Jianjun Qiao; Juan Bai, Email ;
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83
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Yang S, Han SB, Kang S, Lee J, Kim D, Kozlova A, Song M, Park SH, Lee J. The relationship of skin disorders, COVID-19, and the therapeutic potential of ginseng: a review. J Ginseng Res 2023; 47:33-43. [PMID: 36249949 PMCID: PMC9546782 DOI: 10.1016/j.jgr.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/22/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has made significant impacts on global public health, including the development of several skin diseases that have arisen primarily as a result of the pandemic. Owing to the widespread expansion of coronavirus disease 19 (COVID-19), the development of effective treatments for these skin diseases is drawing attention as an important social issue. For many centuries, ginseng and its major active ingredients, ginsenosides and saponins, have been widely regarded as herbal medicines. Further, the anti-viral action of ginseng suggests its potential effectiveness as a therapeutic agent against COVID-19. Thus, the aim of this review was to examine the association of skin lesions with COVID-19 and the effect of ginseng as a therapeutic agent to treat skin diseases induced by COVID-19 infection. We classified COVID-19-related skin disorders into three categories: caused by inflammatory, immune, and complex (both inflammatory and immune) responses and evaluated the evidence for ginseng as a treatment for each category. This review offers comprehensive evidence on the improvement of skin disorders induced by SARS-CoV-2 infection using ginseng and its active constituents.
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Affiliation(s)
- Seoyoun Yang
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Su Bin Han
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Soohyun Kang
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Junghyun Lee
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Dongseon Kim
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Anastasiia Kozlova
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Minkyung Song
- T cell and Tumor Immunology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea,Corresponding author. T cell and Tumor Immunology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 16419, Gyunggi Do, Republic of Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong, Republic of Korea,Corresponding author. Department of Bio and Chemical Engineering, Hongik University, 30016, Sejong City, Republic of Korea
| | - Jongsung Lee
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea,Corresponding author. Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 16419, Gyunggi Do, Republic of Korea
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84
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Onitsuka M, Farooq M, Iqbal MN, Yasuno S, Shimomura Y. A homozygous loss-of-function variant in the MPO gene is associated with generalized pustular psoriasis. J Dermatol 2022; 50:664-671. [PMID: 36585391 DOI: 10.1111/1346-8138.16700] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 01/01/2023]
Abstract
Generalized pustular psoriasis (GPP) is a rare form of psoriasis, which is characterized by sudden onset of repeated erythema and pustule formation with generalized inflammation. Recent advances in molecular genetics have led to the identification of several genes associated with GPP, including IL36RN, CARD14, AP1S3, SERPINA3, and MPO. Of these, only limited cases of GPP have been reported to carry mutations in the AP1S3, SERPINA3, or MPO to date. In the present study, we investigated a Japanese patient with GPP and found a homozygous missense mutation c.1769G>T (p.Arg590Leu) in the MPO gene. Structural analysis predicted that the mutant MPO protein would abolish its ability to bind with heme protein. In vitro studies using cultured cells revealed that the mutant MPO was stably expressed, but completely lost its myeloperoxidase activity. Immunohistochemistry (IHC) using an anti-MPO antibody showed markedly reduced expression of MPO protein in the patient's skin, suggesting that the mutation would lead to an instability of the MPO protein in vivo. Finally, IHC with an anti-citrullinated Histone H3 antibody demonstrated a sparse formation of neutrophil extracellular traps within a Kogoj's spongiform pustule of the patient's skin. Collectively, we conclude that the c.1769G>T (p.Arg590Leu) in the MPO is a complete loss-of-function mutation associated with GPP in the patient. Our data further underscore critical roles of the MPO gene in the pathogenesis of GPP.
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Affiliation(s)
- Mami Onitsuka
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Muhammad Farooq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Muhammad Nasir Iqbal
- Department of Bioinformatics, Institute of Biochemistry, Biotechnology and Bioinformatics (IBBB), The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Shuichiro Yasuno
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yutaka Shimomura
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
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85
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Costanzo A, Bardazzi F, DE Simone C, Fabbrocini G, Foti C, Marzano AV, Naldi L, Parodi A, Prignano F, Girolomoni G. Pustular psoriasis with a focus on generalized pustular psoriasis: classification and diagnostic criteria. An Italian expert consensus. Ital J Dermatol Venerol 2022; 157:489-496. [PMID: 36651202 DOI: 10.23736/s2784-8671.22.07415-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Generalized pustular psoriasis (GPP) is a severe and life-threatening systemic disease associated with significant morbidity and mortality. Recent progress has been made in understanding the pathogenetic pathways involved in GPP and an intricate interaction between innate and adaptive immune mechanisms has been suggested. Despite formal consensus guidelines on pustular psoriasis currently available in the literature, the definitions and classifications of GPP used across studies were inconsistent. Consequently, there are no unified criteria that can be universally adopted for precise diagnosis, classification and effective treatment of GPP patients with new targeted drugs. The aim of this review was to collect all the main evidence on available diagnostic criteria for GPP and to establish recommendations in order to promote a better stratification and therapeutic management of this severe and heterogeneous disease.
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Affiliation(s)
- Antonio Costanzo
- Unit of Dermatology, Department of Biomedical Sciences, Humanitas University, Milan, Italy - .,Skin Pathology Laboratory, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy -
| | - Federico Bardazzi
- Department of Dermatology, IRCCS S. Orsola-Malpighi Polyclinic, Bologna, Italy.,Department of Specialistic, Diagnostic and Experimental Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Clara DE Simone
- Section of Dermatology, Sacred Heart Catholic University, Rome, Italy.,Department of Dermatology, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy
| | - Gabriella Fabbrocini
- Section of Dermatology and Venereology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Caterina Foti
- Section of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, Bari, Italy
| | - Angelo V Marzano
- Unit of Dermatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Luigi Naldi
- Department of Dermatology, AULSS8 - San Bortolo Hospital, Vicenza, Italy
| | - Aurora Parodi
- DiSSal Sezione Dermatologia, IRCCS San Martino Polyclinic Hospital, University of Genoa, Genoa, Italy
| | - Francesca Prignano
- Section of Dermatology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Giampiero Girolomoni
- Section of Dermatology, Department of Medicine, University of Verona, Verona, Italy
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Understanding the Pathogenesis of Generalized Pustular Psoriasis Based on Molecular Genetics and Immunopathology. INTERNATIONAL JOURNAL OF DERMATOLOGY AND VENEREOLOGY 2022. [DOI: 10.1097/jd9.0000000000000277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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87
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Yu J, Zhao Q, Wang X, Zhou H, Hu J, Gu L, Hu Y, Zeng F, Zhao F, Yue C, Zhou P, Li G, Li Y, Wu W, Zhou Y, Li J. Pathogenesis, multi-omics research, and clinical treatment of psoriasis. J Autoimmun 2022; 133:102916. [PMID: 36209691 DOI: 10.1016/j.jaut.2022.102916] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/07/2022]
Abstract
Psoriasis is a common inflammatory skin disease involving interactions between keratinocytes and immune cells that significantly affects the quality of life. It is characterized by hyperproliferation and abnormal differentiation of keratinocytes and excessive infiltration of immune cells in the dermis and epidermis. The immune mechanism underlying this disease has been elucidated in the past few years. Research shows that psoriasis is regulated by the complex interactions among immune cells, such as keratinocytes, dendritic cells, T lymphocytes, neutrophils, macrophages, natural killer cells, mast cells, and other immune cells. An increasing number of signaling pathways have been found to be involved in the pathogenesis of psoriasis, which has prompted the search for new treatment targets. In the past decades, studies on the pathogenesis of psoriasis have focused on the development of targeted and highly effective therapies. In this review, we have discussed the relationship between various types of immune cells and psoriasis and summarized the major signaling pathways involved in the pathogenesis of psoriasis, including the PI3K/AKT/mTOR, JAK-STAT, JNK, and WNT pathways. In addition, we have discussed the results of the latest omics research on psoriasis and the epigenetics of the disease, which provide insights regarding its pathogenesis and therapeutic prospects; we have also summarized its treatment strategies and observations of clinical trials. In this paper, the various aspects of psoriasis are described in detail, and the limitations of the current treatment methods are emphasized. It is necessary to improve and innovate treatment methods from the molecular level of pathogenesis, and further provide new ideas for the treatment and research of psoriasis.
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Affiliation(s)
- Jiadong Yu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Qixiang Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Xiaoyan Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Hong Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Jing Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Linna Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Yawen Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Fanlian Zeng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Fulei Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Chengcheng Yue
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Pei Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Guolin Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Ya Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Wenling Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Yifan Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China
| | - Jiong Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, 1 Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, Sichuan, 610041, China.
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88
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IL-17D-induced inhibition of DDX5 expression in keratinocytes amplifies IL-36R-mediated skin inflammation. Nat Immunol 2022; 23:1577-1587. [PMID: 36271146 DOI: 10.1038/s41590-022-01339-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 09/14/2022] [Indexed: 11/08/2022]
Abstract
Aberrant RNA splicing in keratinocytes drives inflammatory skin disorders. In the present study, we found that the RNA helicase DDX5 was downregulated in keratinocytes from the inflammatory skin lesions in patients with atopic dermatitis and psoriasis, and that mice with keratinocyte-specific deletion of Ddx5 (Ddx5∆KC) were more susceptible to cutaneous inflammation. Inhibition of DDX5 expression in keratinocytes was induced by the cytokine interleukin (IL)-17D through activation of the CD93-p38 MAPK-AKT-SMAD2/3 signaling pathway and led to pre-messenger RNA splicing events that favored the production of membrane-bound, intact IL-36 receptor (IL-36R) at the expense of soluble IL-36R (sIL-36R) and to the selective amplification of IL-36R-mediated inflammatory responses and cutaneous inflammation. Restoration of sIL-36R in Ddx5∆KC mice with experimental atopic dermatitis or psoriasis suppressed skin inflammation and alleviated the disease phenotypes. These findings indicate that IL-17D modulation of DDX5 expression controls inflammation in keratinocytes during inflammatory skin diseases.
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89
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Bachelez H, Barker J, Burden AD, Navarini AA, Krueger JG. Generalized pustular psoriasis is a disease distinct from psoriasis vulgaris: evidence and expert opinion. Expert Rev Clin Immunol 2022; 18:1033-1047. [PMID: 36062811 DOI: 10.1080/1744666x.2022.2116003] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Generalized pustular psoriasis (GPP) is a rare, severe, clinically heterogeneous disease characterized by flares of widespread, non-infectious, macroscopically visible pustules that occur with or without systemic inflammation, and are associated with significant morbidity and mortality. Historically, GPP has been classified as a variant of psoriasis vulgaris (PV, or plaque psoriasis); however, accumulating evidence indicates that these are distinct conditions, requiring different treatment approaches. AREAS COVERED In this perspectives article we review evidence that supports the classification of GPP as distinct from PV. EXPERT OPINION The histopathologic and clinical appearance of GPP is distinct from that of PV and fundamental differences exist between the two conditions in terms of genetic causes and expression-related mechanisms of disease development. GPP results from dysregulation of the innate immune system, with disruption of the interleukin (IL)-36 inflammatory pathway, induction of inflammatory keratinocyte responses, and recruitment of neutrophils. PV is driven by the adaptive immune system, with a key role played by IL-17. Considering GPP as a separate disease will enable greater focus on its specific pathogenesis and the needs of patients. Many treatments for PV have insufficient efficacy in GPP and a therapeutic approach developed specifically for GPP might lead to better patient outcomes.
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Affiliation(s)
- Hervé Bachelez
- Service de Dermatologie, Assistance Publique-Hôpitaux de Paris Hôpital Saint-Louis, Paris, France.,INSERM Unité 1163, Imagine Institute of Genetic Diseases, Université Paris Cité, Paris, France
| | - Jonathan Barker
- St John's Institute of Dermatology, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - A David Burden
- Institute of Infection, Inflammation and Immunity, University of Glasgow, Glasgow, UK
| | | | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
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90
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Lu J, Shi Y. A review of disease burden and clinical management for generalized pustular psoriasis in China. Expert Rev Clin Immunol 2022; 18:1023-1032. [PMID: 36040447 DOI: 10.1080/1744666x.2022.2118716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Generalized pustular psoriasis (GPP) is a rare, severe, immune-mediated and potentially life-threatening skin disease. The rarity, differential diagnoses, relapsing nature, skin and systemic symptoms, complications and limited therapeutic approaches for this disease pose a clinical and psychological burden on patients and their families. AREAS COVERED Epidemiologic data of GPP in Chinese patients, including the disease prevalence and age of disease onset, as well as epidemiologic data in global populations were reviewed. Multiple proinflammatory cytokines are involved in the disease development and clinical presentation of GPP and the interleukin (IL)-36-mediated signalling pathway play a central role. Furthermore, loss-of-function mutations in IL-36RN (encoding the IL-36 receptor antagonist) are associated with GPP, suggesting a potential drug target for developing a disease-specific therapeutic approach. Biologic agents, including IL-36R targeted agents, are promising treatment options, especially as existing conventional therapies are inadequate. Chinese guidelines for the diagnosis and treatment of psoriasis recommend systemic and topical treatment options for GPP and disease complications, as well as for GPP during pregnancy and juvenile GPP. EXPERT OPINION This review summarizes the epidemiology, pathogenesis, clinical characteristics, disease burden and management of patients with GPP in China, and also describes future treatment targets and related clinical trials.
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Affiliation(s)
- Jiajing Lu
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Baode Rd 1278, Shanghai 200443, China
| | - Yuling Shi
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Baode Rd 1278, Shanghai 200443, China.,Department of Dermatology, Institute of Psoriasis, School of Medicine, Tongji University, Baode Rd 1278, Shanghai 200072, China
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91
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Iznardo H, Puig L. IL-1 Family Cytokines in Inflammatory Dermatoses: Pathogenetic Role and Potential Therapeutic Implications. Int J Mol Sci 2022; 23:ijms23169479. [PMID: 36012744 PMCID: PMC9409147 DOI: 10.3390/ijms23169479] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 12/15/2022] Open
Abstract
The interleukin-1 (IL-1) family is involved in the correct functioning and regulation of the innate immune system, linking innate and adaptative immune responses. This complex family is composed by several cytokines, receptors, and co-receptors, all working in a balanced way to maintain homeostasis. Dysregulation of these processes results in tissue inflammation and is involved in the pathogenesis of common inflammatory dermatoses such as psoriasis, hidradenitis suppurativa, and atopic dermatitis. Therefore, therapeutic targeting of IL-1 pathways has been studied, and several monoclonal antibodies are currently being assessed in clinical trials. So far, promising results have been obtained with anti-IL-36R spesolimab and imsidolimab in pustular psoriasis, and their efficacy is being tested in other conditions.
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Affiliation(s)
- Helena Iznardo
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, 08041 Barcelona, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
| | - Luís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, 08041 Barcelona, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
- Correspondence:
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92
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Cell death in skin function, inflammation, and disease. Biochem J 2022; 479:1621-1651. [PMID: 35929827 PMCID: PMC9444075 DOI: 10.1042/bcj20210606] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022]
Abstract
Cell death is an essential process that plays a vital role in restoring and maintaining skin homeostasis. It supports recovery from acute injury and infection and regulates barrier function and immunity. Cell death can also provoke inflammatory responses. Loss of cell membrane integrity with lytic forms of cell death can incite inflammation due to the uncontrolled release of cell contents. Excessive or poorly regulated cell death is increasingly recognised as contributing to cutaneous inflammation. Therefore, drugs that inhibit cell death could be used therapeutically to treat certain inflammatory skin diseases. Programmes to develop such inhibitors are already underway. In this review, we outline the mechanisms of skin-associated cell death programmes; apoptosis, necroptosis, pyroptosis, NETosis, and the epidermal terminal differentiation programme, cornification. We discuss the evidence for their role in skin inflammation and disease and discuss therapeutic opportunities for targeting the cell death machinery.
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93
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Hasegawa Y, Iwata Y, Fukushima H, Tanaka Y, Watanabe S, Saito K, Ito H, Sugiura M, Akiyama M, Sugiura K. Neutrophil extracellular traps are involved in enhanced contact hypersensitivity response in IL-36 receptor antagonist-deficient mice. Sci Rep 2022; 12:13384. [PMID: 35927298 PMCID: PMC9352770 DOI: 10.1038/s41598-022-16449-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 07/11/2022] [Indexed: 11/30/2022] Open
Abstract
Loss-of-function homozygous or compound heterozygous mutations in IL36RN, which encodes interleukin-36 receptor antagonist (IL-36Ra), have been implicated in the pathogenesis of skin disorders. We previously reported that Il36rn−/− mice exhibit an enhanced contact hypersensitivity (CHS) response through increased neutrophil recruitment. In addition, Il36rn−/− mice show severe imiquimod-induced psoriatic skin lesions and enhanced neutrophil extracellular trap (NET) formation. We hypothesized that NETs may play an important role in the CHS response. To confirm this, we examined the CHS response and NET formation in Il36rn−/− mice. Il36rn−/− mice showed enhanced CHS responses, increased infiltration of inflammatory cells, including neutrophils, CD4+ T cells, and CD8+ T cells, NET formation, and enhanced mRNA expression of cytokines and chemokines, including IL-1β, C-X-C motif chemokine ligand (CXCL)1, CXCL2, and IL-36γ. Furthermore, NET formation blockade improved the CHS response, which consequently decreased inflammatory cell infiltration and NET formation. Consistently, we observed decreased expression of these cytokines and chemokines. These findings indicate that IL-36Ra deficiency aggravates the CHS response caused by excessive inflammatory cell recruitment, NET formation, and cytokine and chemokine production, and that NET formation blockade alleviates the CHS response. Thus, NET formation may play a prominent role in the CHS response.
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Affiliation(s)
- Yurie Hasegawa
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Yohei Iwata
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Hidehiko Fukushima
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Yoshihito Tanaka
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Soichiro Watanabe
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Kenta Saito
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Hiroyuki Ito
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Mizuki Sugiura
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Kazumitsu Sugiura
- Department of Dermatology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.
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94
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Broderick L, Hoffman HM. IL-1 and autoinflammatory disease: biology, pathogenesis and therapeutic targeting. Nat Rev Rheumatol 2022; 18:448-463. [PMID: 35729334 PMCID: PMC9210802 DOI: 10.1038/s41584-022-00797-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 11/21/2022]
Abstract
Over 20 years ago, it was first proposed that autoinflammation underpins a handful of rare monogenic disorders characterized by recurrent fever and systemic inflammation. The subsequent identification of novel, causative genes directly led to a better understanding of how the innate immune system is regulated under normal conditions, as well as its dysregulation associated with pathogenic mutations. Early on, IL-1 emerged as a central mediator for these diseases, based on data derived from patient cells, mutant mouse models and definitive clinical responses to IL-1 targeted therapy. Since that time, our understanding of the mechanisms of autoinflammation has expanded beyond IL-1 to additional innate immune processes. However, the number and complexity of IL-1-mediated autoinflammatory diseases has also multiplied to include additional monogenic syndromes with expanded genotypes and phenotypes, as well as more common polygenic disorders seen frequently by the practising clinician. In order to increase physician awareness and update rheumatologists who are likely to encounter these patients, this review discusses the general pathophysiological concepts of IL-1-mediated autoinflammation, the epidemiological and clinical features of specific diseases, diagnostic challenges and approaches, and current and future perspectives for therapy.
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Affiliation(s)
- Lori Broderick
- Division of Allergy, Immunology & Rheumatology, Department of Paediatrics, University of California, San Diego, CA, USA.
- Rady Children's Hospital, San Diego, CA, USA.
| | - Hal M Hoffman
- Division of Allergy, Immunology & Rheumatology, Department of Paediatrics, University of California, San Diego, CA, USA.
- Rady Children's Hospital, San Diego, CA, USA.
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95
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Sachen KL, Arnold Greving CN, Towne JE. Role of IL-36 cytokines in psoriasis and other inflammatory skin conditions. Cytokine 2022; 156:155897. [DOI: 10.1016/j.cyto.2022.155897] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/29/2022] [Accepted: 04/22/2022] [Indexed: 12/15/2022]
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96
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Koker O, Aktay Ayaz N. Autoimmune and autoinflammatory diseases with mucocutaneous manifestations: A pediatric rheumatology perspective. Int J Dermatol 2022; 62:723-736. [PMID: 35843911 DOI: 10.1111/ijd.16352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/25/2022] [Accepted: 06/24/2022] [Indexed: 12/01/2022]
Abstract
The presence of mucocutaneous manifestations has clinical significance, as it may be a part of the initial presentation or activation stage of both autoimmune and autoinflammatory rheumatic diseases. The cutaneous signs may display a particular morphological and topographic distribution according to taxonomy, whereas heterogeneity is likely observed among the individuals. The review aims to cluster and systematically approach the mucocutaneous manifestations met in autoimmune and autoinflammatory rheumatic diseases of childhood. The search strategy involved a comprehensive inquiry on Web of Science, PubMed, MEDLINE, and Embase databases using relevant search terms such as "dermatologic, cutaneous, mucocutaneous, skin, rash" for each disease and category. The awareness of the distinctive mucocutaneous manifestations and their correlation with rheumatic diseases provides a convenient definition, well-timed control of the underlying condition, and prevention of cosmetic issues. In the management of rheumatic diseases, planning the pertinent differential diagnosis and determining the requirement of histopathological assessment are essential with a multidisciplinary approach to rheumatology, dermatology, and allergy-immunology specialties.
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Affiliation(s)
- Oya Koker
- Istanbul Faculty of Medicine, Department of Pediatric Rheumatology, Istanbul University, Istanbul, Turkey
| | - Nuray Aktay Ayaz
- Istanbul Faculty of Medicine, Department of Pediatric Rheumatology, Istanbul University, Istanbul, Turkey
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97
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Frezza V, Najda Z, Davidovich P, Sullivan GP, Martin SJ. IL-1α and IL-36 Family Cytokines Can Undergo Processing and Activation by Diverse Allergen-Associated Proteases. Front Immunol 2022; 13:879029. [PMID: 35844537 PMCID: PMC9280268 DOI: 10.3389/fimmu.2022.879029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammation driven by environmental allergens is an important source of morbidity in diseases such as asthma and eczema. How common allergens promote inflammation is still poorly understood, but previous studies have implicated the protease activity associated with many allergens as an important component of the pro-inflammatory properties of these agents. The IL-1 family cytokine, IL-33, has recently been shown to undergo processing and activation by proteases associated with multiple common allergens. However, it remains unclear whether the sensing of exogenous protease activity—as a proxy for the detection of invasive microbes, allergens and parasitic worms—is a general property of IL-1 family cytokines. In common with the majority of IL-1 family members, cytokines within the IL-36 sub-family (IL-36α, IL-36β and IL-36γ) are expressed as inactive precursors that require proteolysis within their N-termini for activation. Here we show that proteases associated with multiple common allergens of plant, insect, fungal and bacterial origin (including: Aspergillus fumigatus, ragweed, rye, house dust mite, cockroach and Bacillus licheniformis) are capable of processing and activating IL-36 family cytokines, with IL-36β being particularly susceptible to activation by multiple allergens. Furthermore, extracts from several allergens also processed and enhanced IL-1α activity. This suggests that multiple IL-1 family cytokines may serve as sentinels for exogenous proteases, coupling detection of such activity to unleashing the pro-inflammatory activity of these cytokines. Taken together with previous data on the diversity of proteases capable of activating IL-1 family cytokines, this suggests that members of this cytokine family may function as ‘activity recognition receptors’ for aberrant protease activity associated with infection, tissue injury or programmed necrosis.
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98
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Baker JR, Fenwick PS, Koss CK, Owles HB, Elkin SL, Fine JS, Thomas M, Kasmi KC, Barnes PJ, Donnelly LE. Imbalance between IL-36 receptor agonist and antagonist drives neutrophilic inflammation in COPD. JCI Insight 2022; 7:155581. [PMID: 35763349 PMCID: PMC9462491 DOI: 10.1172/jci.insight.155581] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 06/24/2022] [Indexed: 11/17/2022] Open
Abstract
Current treatments fail to modify the underlying pathophysiology and disease progression of chronic obstructive pulmonary disease (COPD), necessitating alternative therapies. Here, we show that COPD subjects have increased IL-36γ and decreased IL-36 receptor antagonist (IL-36Ra) in bronchoalveolar and nasal fluid compared to control subjects. IL-36γ is derived from small airway epithelial cells (SAEC) and further induced by a viral mimetic, whereas IL-36RA is derived from macrophages. IL-36γ stimulates release of the neutrophil chemoattractants CXCL1 and CXCL8, as well as elastolytic matrix metalloproteinases (MMPs) from small airway fibroblasts (SAF). Proteases released from COPD neutrophils cleave and activate IL-36γ thereby perpetuating IL-36 inflammation. Transfer of culture media from SAEC to SAF stimulated release of CXCL1, that was inhibited by exogenous IL-36RA. The use of a therapeutic antibody that inhibits binding to the IL-36 receptor (IL-36R) attenuated IL-36γ driven inflammation and cellular cross talk. We have demonstrated a mechanism for the amplification and propagation of neutrophilic inflammation in COPD and that blocking this cytokine family via a IL-36R neutralizing antibody could be a promising new therapeutic strategy in the treatment of COPD.
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Affiliation(s)
- Jonathan R Baker
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Peter S Fenwick
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Carolin K Koss
- Boehringer Ingelheim Pharma GmbH & Co KG,, Biberach an der Riß, Germany
| | - Harriet B Owles
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sarah L Elkin
- Department of Respiratory Medicine, Imperial College Healthcare Trust, London, United Kingdom
| | - Jay S Fine
- Immunology and Respiratory Diseases, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, United States of America
| | - Matthew Thomas
- Department of Immunology and Respiratory, Boehringer Ingelheim Pharma GmbH & Co KG,, Biberach an der Riß, Germany
| | - Karim C Kasmi
- Department of Immunology and Respiratory, Boehringer Ingelheim Pharma GmbH & Co KG,, Biberach an der Riß, Germany
| | - Peter J Barnes
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Louise E Donnelly
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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99
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Evavold CL, Kagan JC. Diverse Control Mechanisms of the Interleukin-1 Cytokine Family. Front Cell Dev Biol 2022; 10:910983. [PMID: 35832789 PMCID: PMC9272893 DOI: 10.3389/fcell.2022.910983] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/17/2022] [Indexed: 11/15/2022] Open
Abstract
The majority of interleukin-1 (IL-1) family cytokines lack amino terminal secretion signals or transmembrane domains for secretion along the conventional biosynthetic pathway. Yet, these factors must be translocated from the cytoplasm across the plasma membrane into the extracellular space in order to regulate inflammation. Recent work has identified an array of mechanisms by which IL-1 family cytokines can be released into the extracellular space, with supramolecular organizing centers known as inflammasomes serving as dominant drivers of this process. In this review, we discuss current knowledge of the mechanisms of IL-1 family cytokine synthesis, processing, and release from cells. Using this knowledge, we propose a model whereby host metabolic state dictates the route of IL-1β secretion, with implications for microbial infection and sterile inflammation.
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Affiliation(s)
- Charles L. Evavold
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, United States
- *Correspondence: Charles L. Evavold, ; Jonathan C. Kagan,
| | - Jonathan C. Kagan
- Division of Gastroenterology, Boston Children’s Hospital and Harvard Medical School, Boston, MA, United States
- *Correspondence: Charles L. Evavold, ; Jonathan C. Kagan,
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Martin SJ, Frezza V, Davidovich P, Najda Z, Clancy DM. IL-1 family cytokines serve as 'activity recognition receptors' for aberrant protease activity indicative of danger. Cytokine 2022; 157:155935. [PMID: 35759924 DOI: 10.1016/j.cyto.2022.155935] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/31/2022] [Accepted: 06/04/2022] [Indexed: 11/03/2022]
Abstract
Members of the extended IL-1 cytokine family play key roles as instigators of inflammation in numerous infectious and sterile injury contexts and are highly enriched at barrier surfaces such as the skin, lungs and intestinal mucosa. Because IL-1 family cytokines do not possess conventional ER-golgi trafficking and secretory signals, these cytokines are typically released into the extracellular space due to tissue damage resulting in necrosis, or pathogen detection resulting in pyroptosis. The latter feature, in combination with other factors, suggests that IL-1 family cytokines serve as canonical damage-associated molecular patterns (DAMPs), which instigate inflammation in response to tissue damage. However, IL-1 family cytokines also require a proteolytic activation step and diverse intracellular, extracellular and non-self proteases have been identified that are capable of processing and activating members of this family. This suggests that IL-1 family members function as sentinels for aberrant protease activity, which is frequently associated with infection or tissue damage. Here, we overview the diversity of proteases implicated in the activation of IL-1 family cytokines and suggest that this ancient cytokine family may have evolved to complement 'pattern recognition receptors', by serving as 'activity recognition receptors' enabling the detection of aberrant enzyme activity indicative of 'danger'.
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Affiliation(s)
- Seamus J Martin
- Molecular Cell Biology Laboratory, Dept. of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland.
| | - Valentina Frezza
- Molecular Cell Biology Laboratory, Dept. of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
| | - Pavel Davidovich
- Molecular Cell Biology Laboratory, Dept. of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
| | - Zaneta Najda
- Molecular Cell Biology Laboratory, Dept. of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
| | - Danielle M Clancy
- Molecular Cell Biology Laboratory, Dept. of Genetics, The Smurfit Institute, Trinity College, Dublin 2, Ireland
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