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Caux F, Patsatsi A, Karakioulaki M, Antiga E, Baselga E, Borradori L, Caproni M, Cardones AR, Chandran NS, Dräger S, Drenovska K, Goebeler M, Günther C, Hofmann SC, Ioannides D, Joly P, Marinović B, Mariotti EB, Marzano AV, Morel KD, Murrell DF, Prost C, Sárdy M, Setterfield J, Skiljevic D, Uzun S, Vassileva S, Zambruno G, Schmidt E. S2k guidelines on diagnosis and treatment of linear IgA dermatosis initiated by the European Academy of Dermatology and Venereology. J Eur Acad Dermatol Venereol 2024; 38:1006-1023. [PMID: 38421060 DOI: 10.1111/jdv.19880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024]
Abstract
INTRODUCTION Linear IgA dermatosis (LAD) is a rare subepidermal autoimmune bullous disease (AIBD) defined by predominant or exclusive immune deposits of immunoglobulin A at the basement membrane zone of skin or mucous membranes. This disorder is a rare, clinically and immunologically heterogeneous disease occurring both in children and in adults. The aim of this project is to present the main clinical features of LAD, to propose a diagnostic algorithm and provide management guidelines based primarily on experts' opinion because of the lack of large methodologically sound clinical studies. METHODS These guidelines were initiated by the European Academy of Dermatology and Venereology (EADV) Task Force Autoimmune Bullous Diseases (AIBD). To achieve a broad consensus for these S2k consensus-based guidelines, a total of 29 experts from different countries, both European and non-European, including dermatologists, paediatric dermatologists and paediatricians were invited. All members of the guidelines committee agreed to develop consensus-based (S2k) guidelines. Prior to a first virtual consensus meeting, each of the invited authors elaborated a section of the present guidelines focusing on a selected topic, based on the relevant literature. All drafts were circulated among members of the writing group, and recommendations were discussed and voted during two hybrid consensus meetings. RESULTS The guidelines summarizes evidence-based and expert opinion-based recommendations (S2 level) on the diagnosis and treatment of LAD. CONCLUSION These guidelines will support dermatologists to improve their knowledge on the diagnosis and management of LAD.
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Affiliation(s)
- Frédéric Caux
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - Aikaterini Patsatsi
- Autoimmune Bullous Diseases Unit, 2nd Department of Dermatology, Aristotle University School of Medicine, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Meropi Karakioulaki
- Department of Dermatology and Venereology, Medical Center, University Hospital Freiburg, Freiburg, Germany
| | - Emiliano Antiga
- Department of Health Sciences, Section of Dermatology, Azienda USL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Florence, Italy
| | - Eulalia Baselga
- Department of Dermatology, Hospital Sant Joan de Deu, Barcelona, Spain
| | - Luca Borradori
- Department of Dermatology, University of Bern, Inselspital, Berne, Switzerland
| | - Marzia Caproni
- Department of Health Sciences, Section of Dermatology, Azienda USL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Florence, Italy
| | - Adela R Cardones
- Division of Dermatology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Sören Dräger
- Department of Dermatology, Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Kossara Drenovska
- Department of Dermatology and Venereology, University Hospital "Alexandrovska", Medical University-Sofia, Sofia, Bulgaria
| | - Matthias Goebeler
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Claudia Günther
- Department of Dermatology, University Hospital, Technical University Dresden, Dresden, Germany
| | - Silke C Hofmann
- Department of Dermatology, Allergy and Dermatosurgery, Helios University Hospital Wuppertal, University Witten-Herdecke, Wuppertal, Germany
| | - Dimitrios Ioannides
- 1st Department of Dermatology, Aristotle University School of Medicine, Hospital of Skin and Venereal Diseases, Thessaloniki, Greece
| | - Pascal Joly
- Department of Dermatology, Rouen University Hospital, INSERM 1234, Normandie University, Rouen, France
| | - Branka Marinović
- Department of Dermatology and Venereology, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Elena Biancamaria Mariotti
- Department of Health Sciences, Section of Dermatology, Azienda USL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Florence, Italy
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Kimberly D Morel
- Departments of Dermatology and Pediatrics at Columbia University Medical Center, Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Dedee F Murrell
- Department of Dermatology, St George Hospital, University of New South Wales, Sydney, New South Wales, Australia
| | - Catherine Prost
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - Miklós Sárdy
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary
- Department of Dermatology and Allergy, University Hospital, LMU, Munich, Germany
| | - Jane Setterfield
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, UK
- Centre for Host-Microbiome Interactions, King's College London Faculty of Dentistry, Oral & Craniofacial Sciences, London, UK
| | - Dusan Skiljevic
- Department of Dermatovenereology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Soner Uzun
- Department of Dermatology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Snejina Vassileva
- Department of Dermatology and Venereology, University Hospital "Alexandrovska", Medical University-Sofia, Sofia, Bulgaria
| | - Giovanna Zambruno
- Genodermatosis Unit, Translational Pediatrics and Clinical Genetics Research Division, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Enno Schmidt
- Department of Dermatology, Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
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Hübner F, Langan EA, Recke A. Lichen Planus Pemphigoides: From Lichenoid Inflammation to Autoantibody-Mediated Blistering. Front Immunol 2019; 10:1389. [PMID: 31312198 PMCID: PMC6614382 DOI: 10.3389/fimmu.2019.01389] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/03/2019] [Indexed: 12/17/2022] Open
Abstract
Lichen planus pemphigoides (LPP) is a very rare autoimmune sub-epidermal blistering disease associated with lichenoid skin changes. Initially thought to be a mere variant of more common inflammatory dermatoses, particularly Bullous Pemphigoid (BP) or Lichen Planus (LP), a growing body of evidence suggests that it is a disease entity in its own right. In common with a range of autoimmune blistering diseases, including BP, pemphigoid gestationis (PG), mucous membrane pemphigoid (MMP) and linear IgA dermatosis (LAD), a key feature of the disease is the development of autoantibodies against type XVII collagen (COL17). However, accurately establishing the diagnosis is dependent on a careful correlation between the clinical, histological and immunological features of the disease. Therefore, we present an up to date summary of the epidemiology and etiopathogenesis of LPP, before illustrating the predisposing and precipitating factors implicated in the development of the disease. In addition to a selective literature search, we compare reports of potential drug-induced cases of LPP with pharmacovigilance data available via OpenVigil. We subsequently outline the cardinal clinical features, important differential diagnoses and current treatment options. We conclude by demonstrating that an improved understanding of LPP may not only lead to the development of novel treatment strategies for the disease itself, but may also shed new light on the pathophysiology of more common and treatment-refractory autoimmune blistering diseases.
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Affiliation(s)
- Franziska Hübner
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Ewan A. Langan
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Dermatological Sciences, University of Manchester, Manchester, United Kingdom
| | - Andreas Recke
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Dermatological Research, University of Lübeck, Lübeck, Germany
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Mai Y, Nishie W, Izumi K, Shimizu H. Preferential Reactivity of Dipeptidyl Peptidase-IV Inhibitor-Associated Bullous Pemphigoid Autoantibodies to the Processed Extracellular Domains of BP180. Front Immunol 2019; 10:1224. [PMID: 31191560 PMCID: PMC6549357 DOI: 10.3389/fimmu.2019.01224] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/14/2019] [Indexed: 12/21/2022] Open
Abstract
Bullous pemphigoid (BP) is a common autoimmune blistering disease in which autoantibodies target the hemidesmosomal components BP180 and/or BP230 in basal keratinocytes. In BP, 80 to 90% of autoantibodies target the juxtamembranous extracellular non-collagenous 16th A (NC16A) domain of BP180. Recently, the administration of dipeptidyl peptidase-IV inhibitors (DPP4i), which are widely used as antihyperglycemic drugs, has been recognized to be a causative factor for BP. DPP4i-associated BP (DPP4i-BP) autoantibodies tend to target epitopes on non-NC16A regions of BP180, and the pathomechanism for the development of the unique autoantibodies remains unknown. To address the characteristics of DPP4i-BP autoantibodies in detail, we performed epitope analysis of 18 DPP4i-BP autoantibodies targeting the non-NC16A domains of BP180 using various domain-specific as well as plasmin-digested polypeptides derived from recombinant BP180. Firstly, Western blotting showed that only one DPP4i-BP serum reacted with the epitopes on the intracellular domain of BP180, and no sera reacted with the C-terminal domain of the molecule. In addition, only 2 DPP4i-BP sera reacted with BP230 as determined by enzyme-linked immunosorbent assay. Thus, DPP4i-BP autoantibodies were found to mainly target the non-NC16A mid-portion of the extracellular domain of BP. Interestingly, Western blotting using plasmin-digested BP180 as a substrate revealed that all of the DPP4i-BP sera reacted more intensively with the 97-kDa processed extracellular domain of BP180, which is known as the LABD97 autoantigen, than full-length BP180 did. All of the DPP4i-BP autoantibodies targeting the LABD97 autoantigen were IgG1, and IgG4 was observed to react with the molecule in only 7 cases (38.9%). In summary, the present study suggests that IgG1-class autoantibodies targeting epitopes on the processed extracellular domain of BP180, i.e., LABD97, are the major autoantibodies in DPP4i-BP.
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Affiliation(s)
| | - Wataru Nishie
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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