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Oprea Y, Antohi DR, Vague M, Delbourgo Patton C, Wu B, Ortega-Loayza AG. Human Inborn Errors of Immunity in Pyoderma Gangrenosum: A Systematic Review. Am J Clin Dermatol 2024; 25:701-716. [PMID: 38951460 DOI: 10.1007/s40257-024-00875-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND AND OBJECTIVE Pyoderma gangrenosum (PG) is a rare ulcerative neutrophilic dermatosis that can be associated with primary immunodeficiency. The pathogenesis of PG has not yet been elucidated, although contributions from dysregulation of the immune system in patients with apparent genetic predispositions have been postulated. We conducted a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-guided systematic review with the objective of identifying inborn errors of immunity in the presence of PG as well as their clinical characteristics of severity including number of PG lesions and anatomic areas affected, and treatment outcomes. METHODS A literature search was performed using PubMed/MEDLINE, Embase, Cochrane Library, and Web of Science through August 24, 2023, for studies published in English using the search terms: "pyoderma gangrenosum," "inborn error of immunity," "immune defect*," and a list of genetic mutations potentially associated with PG. RESULTS Seventy-four cases of PG associated with inborn errors of immunity were identified. The results demonstrate an association of PG with a variety of inborn errors of immunity, including genetic mutations not classically associated with the condition. Genetic mutations such as BTK, IL1RN, ITGB2, LPIN2, MEFV, NFkB1, NLRP3, NLRP12, NOD2, PSMB8, PLCG2, PSTPIP1, RAG1, TTC37, and WDR1, as well as complement component 2/complement component 4 (C2/C4) and complement component 7 (C7) deficiencies were identified in the presence of either idiopathic or syndromic PG. Of note, mutations in genes such as PSMB8, NLRP3, and IL1RN were found to be associated with a more severe and atypical course of PG, whereas mutations in RAG1 as well as those causing a C2/C4 deficiency were associated with the mildest clinical presentations of PG. Mutations in NFkB1, ITGB2, and PSTPIP1 were associated with the most heterogeneous clinical presentations. CONCLUSIONS Human inborn errors of immunity may be implicated in the genetic predisposition to PG and may influence the clinical presentation. Due to the rarity of these diseases, further work must be done to describe the association between inborn errors of immunity and PG. Identifying inborn errors of immunity that may contribute to the development of PG may assist in further elucidating the mechanism of PG, guiding targeted treatment, and improving clinical outcomes for these patients.
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Affiliation(s)
- Yasmine Oprea
- Division of Dermatology, Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Daniel R Antohi
- Division of Dermatology, Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Morgan Vague
- Department of Dermatology, Oregon Health and Science University, Portland, OR, USA
| | | | - Benedict Wu
- Division of Dermatology, Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Alex G Ortega-Loayza
- Department of Dermatology, Oregon Health and Science University, Portland, OR, USA.
- OHSU Center for Health and Healing, 3303 S Bond Avenue, Building 1, 16th Floor, Portland, OR, 97239, USA.
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2
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Satoh TK. Genetic mutations in pyoderma gangrenosum, hidradenitis suppurativa, and associated autoinflammatory syndromes: Insights into pathogenic mechanisms and shared pathways. J Dermatol 2024; 51:160-171. [PMID: 38031879 DOI: 10.1111/1346-8138.17028] [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: 09/26/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023]
Abstract
Pyoderma gangrenosum (PG), hidradenitis suppurativa (HS), and the associated autoinflammatory syndromes, including pyogenic arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome, PSTPIP1-associated myeloid-related proteinemia inflammatory (PAMI) syndrome, pyoderma gangrenosum, acne, and hidradenitis suppurativa (PASH) syndrome, and pyogenic arthritis, pyoderma gangrenosum, acne, and suppurative hidradenitis (PAPASH) syndrome are dermatological conditions characterized by chronic inflammation and tissue damage. Recent advances in genetic research have identified specific mutations associated with these disorders, shedding light on their underlying pathogenic mechanisms. This review aims to summarize the current knowledge of identified mutations and presumed pathophysiology in PG, HS, and the associated autoinflammatory syndromes.
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Affiliation(s)
- Takashi K Satoh
- Department of Dermatology and Allergy, University Hospital, LMU, Munich, Germany
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3
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Abraham ZS, Thomas EP, Kahinga AA. Unilateral Pyoderma gangrenosum of the external ear in a resource-limited setting: Case report and literature review. Clin Case Rep 2021; 9:2016-2018. [PMID: 33936632 PMCID: PMC8077394 DOI: 10.1002/ccr3.3930] [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: 11/28/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 11/09/2022] Open
Abstract
Involvement of the external ear by PG is a rare encounter, and steroids remain to be the main stay in its treatment.
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Affiliation(s)
| | - Edwin Peter Thomas
- Department of Surgery‐University of DodomaCollege of Health and Allied SciencesDodomaTanzania
| | - Aveline Aloyce Kahinga
- Department of Otorhinolaryngology‐MuhimbiliUniversity of Health and Allied SciencesDar es SalaamTanzania
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4
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Abstract
Pyoderma Gangrenosum (PG) is a rare neutrophilic dermatosis with multiple different clinical presentations and associated comorbidities. PG has historically been a challenging disorder to diagnose, leading to the development of new diagnostic criteria rather than the traditional approach of a diagnosis of exclusion. The pathophysiology is thought to involve both innate and adaptive immune system dysregulation, neutrophilic abnormalities, environmental, and genetic factors. As of today, no gold standard therapy exists for the treatment of PG, and the literature is restricted to mainly case reports, case series, and 2 small randomized clinical trials. Topical, systemic, and biologic therapy, as well as adequate analgesia and proper wound care all play a role in the management of PG. Recent studies have identified additional cytokines and signalling cascades thought to be involved in the pathogenesis of PG, ultimately leading to the development of new targeted therapies. This review will focus on recent advances in the pathophysiology, clinical presentation and associated comorbidities, diagnosis, and management of PG.
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Affiliation(s)
- Josh Fletcher
- Department of Medicine, University of Toronto, Toronto, Ontario, M5S 1A8, Canada
| | - Raed Alhusayen
- Department of Medicine, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.,Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, M4N 3M5, Canada
| | - Afsaneh Alavi
- Department of Medicine, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.,Division of Dermatology, Department of Medicine, Women's College Hospital, Toronto, Ontario, M5S 1B2, Canada
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5
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Maliyar K, Mufti A, Syed M, Selk A, Dutil M, Bunce PE, Alavi A. Genital Ulcer Disease: A Review of Pathogenesis and Clinical Features. J Cutan Med Surg 2019; 23:624-634. [PMID: 31253050 DOI: 10.1177/1203475419858955] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Genital ulcer disease can be caused by a wide variety of sources. Most commonly, genital ulcer disease is grouped into infectious and noninfectious causes. HSV, syphilis, lymphogranuloma venereum, and chancroid represent some common infectious ulcers. Noninfectious causes on the other hand can be inflammatory, noninflammatory, or malignant (eg, squamous cell carcinoma). Depending on the etiology, genital ulcers may present with unique features that can help clinicians identify the etiology and start treatment in a timely manner. The clinical presentation and management of infectious and noninfectious genital ulcers will be discussed in this review.
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Affiliation(s)
| | | | - Maleeha Syed
- Faculty of Medicine, University of Ottawa, ON, Canada
| | - Amanda Selk
- Department of Obstetrics and Gynecology, Women's College Hospital, University of Toronto, ON, Canada
| | - Maha Dutil
- Division of Dermatology, Department of Medicine, University of Toronto, ON, Canada
| | - Paul E Bunce
- Division of Infectious Diseases, Department of Medicine, University of Toronto, ON, Canada
| | - Afsaneh Alavi
- Division of Dermatology, Department of Medicine, Women's College Hospital, University of Toronto, ON, Canada
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6
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Marzano AV, Ortega-Loayza AG, Heath M, Morse D, Genovese G, Cugno M. Mechanisms of Inflammation in Neutrophil-Mediated Skin Diseases. Front Immunol 2019; 10:1059. [PMID: 31139187 PMCID: PMC6519315 DOI: 10.3389/fimmu.2019.01059] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/25/2019] [Indexed: 12/28/2022] Open
Abstract
Neutrophil-mediated skin diseases, originally named neutrophilic dermatoses (NDs), are a group of conditions due to an altered neutrophil recruitment and activation, characterized by polymorphic cutaneous manifestations with possible internal organ involvement. Although a number of diseases are included in this setting, the two prototypic forms are pyoderma gangrenosum (PG) and Sweet's syndrome (SS) which usually present with skin ulcers and plaque-type lesions, respectively. They have central features significantly overlapping with autoinflammatory conditions which manifest as repeated episodes of tissue inflammation. However, in contrast to appropriate inflammatory responses to insults or to autoimmune disease, there is an absence of identifiable pathogens, autoantibodies, or autoreactive lymphocytes. The recognition of monogenic autoinflammatory diseases which can present with NDs has led to study several genes involved in autoinflammation in NDs. Based on discovering of a number of mutations involving different autoinflammatory genes, neutrophil-mediated skin diseases are nowadays regarded as a spectrum of polygenic autoinflammatory conditions. Although disease mechanisms have not yet been completely elucidated, NDs are recognized as diseases involving dysfunctional cellular signaling mediated by pathways mainly related to inflammasome and IL-1 with the contributory role of IL-17 and other effector molecules. The precise elucidation of the above-mentioned pathologic mechanisms may pave the way to tailored treatments for patients with different neutrophil-mediated skin diseases.
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Affiliation(s)
- Angelo V Marzano
- UOC Dermatologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milan, Italy
| | - Alex G Ortega-Loayza
- Department of Dermatology, OHSU Wound Care and Hyperbaric Medicine, Oregon Health and Science University, Portland, OR, United States
| | - Michael Heath
- Department of Dermatology, Oregon Health and Science University, Portland, OR, United States
| | - Daniel Morse
- Department of Dermatology, Oregon Health and Science University, Portland, OR, United States
| | - Giovanni Genovese
- UOC Dermatologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milan, Italy
| | - Massimo Cugno
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Milan, Italy.,Medicina Interna, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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7
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Marzano AV, Damiani G, Ceccherini I, Berti E, Gattorno M, Cugno M. Autoinflammation in pyoderma gangrenosum and its syndromic form (pyoderma gangrenosum, acne and suppurative hidradenitis). Br J Dermatol 2017; 176:1588-1598. [PMID: 27943240 DOI: 10.1111/bjd.15226] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Pyoderma gangrenosum (PG) is a rare skin disease characterized clinically by ulcers with undermined borders, and histologically by neutrophil-rich infiltrates. PG may occur alone, in syndromic forms or associated with systemic diseases, such as inflammatory bowel disease and haematological or rheumatological disorders. OBJECTIVES To determine a specific genetic background related to autoinflammation for PG. METHODS We assessed autoinflammation by evaluating the cytokine profile and genes involved in classic autoinflammatory diseases in 13 patients with PG and in seven patients with the syndromic form, known as PASH (pyoderma gangrenosum, acne and suppurative hidradenitis). RESULTS In skin samples, the expression of interleukin (IL)-1β and its receptors, IL-17 and its receptor, and tumour necrosis factor-α and its receptors were significantly higher in both PG (P = 0·001) and in PASH (P < 0·001) than in controls. The chemokines IL-8; chemokine (C-X-C motif) ligand 1/2/3; chemokine (C-X-C motif) ligand 16; and RANTES (regulated on activation, normal T-cell-expressed and secreted) were also overexpressed. Cases of PG and PASH showed mutations in the autoinflammatory genes MEFV, NLRP3, NLRP12, NOD2, LPIN2 and PSTPIP1. CONCLUSIONS Overexpression of cytokines/chemokines, along with genetic changes, supports the hypothesis that PG and its syndromic form, PASH, are a spectrum of polygenic autoinflammatory conditions.
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Affiliation(s)
- A V Marzano
- IRCCS Cà Granda Foundation, Dermatology Unit, Department of Pathophysiology and Transplantation, University of Milan, Milan, 20122, Italy
| | - G Damiani
- IRCCS Cà Granda Foundation, Dermatology Unit, Department of Pathophysiology and Transplantation, University of Milan, Milan, 20122, Italy
| | | | - E Berti
- IRCCS Cà Granda Foundation, Dermatology Unit, Department of Pathophysiology and Transplantation, University of Milan, Milan, 20122, Italy
| | - M Gattorno
- Istituto Gaslini, Genetica Medica, Genoa, Italy
| | - M Cugno
- Internal Medicine, University of Milan, Milan, 20122, Italy
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8
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Schoch JJ, Tolkachjov SN, Cappel JA, Gibson LE, Davis DMR. Pediatric Pyoderma Gangrenosum: A Retrospective Review of Clinical Features, Etiologic Associations, and Treatment. Pediatr Dermatol 2017; 34:39-45. [PMID: 27699861 DOI: 10.1111/pde.12990] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Pyoderma gangrenosum (PG) is a neutrophilic dermatosis rarely seen in children. Its features have not been well characterized in children. We sought to characterize the clinical features, etiologic associations, and treatment of PG in children younger than 18 years. METHODS We performed a retrospective review of children younger than 18 years with PG at the Mayo Clinic from January 1976 to August 2013. RESULTS Thirteen children with PG were identified (n = 8; 62% female). All had ulcerations, with 62% having pustular lesions. Sites of involvement included the trunk (77%), lower extremities (77%), upper extremities (38%), and head and neck (38%). Nine (69%) had an underlying comorbidity, including seven with Crohn's disease (54%), one with juvenile idiopathic arthritis (8%), and one with pyogenic arthritis, pyoderma gangrenosum, and acne syndrome (8%). Treatments included topical or local care (92%) and systemic therapies (85%) such as oral corticosteroids (62%) and sulfasalazine or related 5-aminosalicylate drugs (46%). The clinical course did not correlate with that of the underlying systemic disease and response to treatment varied. CONCLUSION Pediatric PG has a more varied anatomic distribution and a greater predominance of pustular lesions than PG in adults and a strong association with inflammatory bowel disease.
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Affiliation(s)
| | | | | | - Lawrence E Gibson
- Department of Dermatology, Mayo Clinic, Rochester, Minnesota.,Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota
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9
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Mohanasundaram K, Sriram S, Madeshwaran M, Balameena S, Rajeswari S. Pyoderma gangrenosum in lupus. INDIAN JOURNAL OF RHEUMATOLOGY 2015. [DOI: 10.1016/j.injr.2014.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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10
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DeFilippis E, Feldman S, Huang W. The genetics of pyoderma gangrenosum and implications for treatment: a systematic review. Br J Dermatol 2015; 172:1487-1497. [DOI: 10.1111/bjd.13493] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2014] [Indexed: 12/22/2022]
Affiliation(s)
- E.M. DeFilippis
- Center for Dermatology Research; Department of Dermatology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
| | - S.R. Feldman
- Center for Dermatology Research; Department of Dermatology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
- Department of Pathology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
- Department of Public Health Sciences; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
| | - W.W. Huang
- Center for Dermatology Research; Department of Dermatology; Wake Forest School of Medicine, Medical Center Boulevard; Winston-Salem NC 27157 U.S.A
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11
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Boussofara L, Gammoudi R, Ghariani N, Aounallah A, Sriha B, Denguezli M, Belajouza C, Nouira R. Familial pyoderma gangrenosum in association with common variable immunodeficiency. Br J Dermatol 2013; 169:944-6. [DOI: 10.1111/bjd.12431] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Boussofara
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - R. Gammoudi
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - N. Ghariani
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - A. Aounallah
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - B. Sriha
- Department of Pathology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - M. Denguezli
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - C. Belajouza
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
| | - R. Nouira
- Department of Dermatology; Farhat Hached Hospital; Ibn Jazzar Avenue 4000 Sousse Tunisia
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Abstract
Parastomal pyoderma gangrenosum (PPG) is an unusual neutrophilic dermatosis characterized by painful, necrotic ulcerations occurring in the area surrounding an abdominal stoma. It typically affects young to middle-aged adults, with a slight female predominance. The underlying etiology for PPG remains enigmatic but aberrant immune response to injury may play a pivotal role. The reported risk factors for the development of PPG include the presence of extra-intestinal manifestations, autoimmune disorders and obesity, along with local factors, such as the presence of parastomal hernia or pressure ulcer. PPG can develop at any time after the stoma construction. The histopathological features of PPG are not pathognomonic and its diagnosis is mainly based on clinical features. The management of PPG often requires a multidisciplinary approach, with a combination of local wound care and systemic medications.
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Affiliation(s)
- Xian-Rui Wu
- Department of Colorectal Surgery, the Cleveland Clinic Foundation,Cleveland, Ohio, USA and Department of Gastroenterology/Hepatology, the Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Konopka CL, Padulla GA, Ortiz MP, Beck AK, Bitencourt MR, Dalcin DC. Pioderma Gangrenoso: um Artigo de Revisão. J Vasc Bras 2013. [DOI: 10.1590/s1677-54492013000100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
O pioderma gangrenoso (PG) é uma dermatose crônica com características peculiares e de etiologia desconhecida, muitas vezes de difícil diagnóstico. Manifesta-se através de lesões cutâneas ulceradas e dolorosas com evolução rápida e progressiva, mais comumente em membros inferiores. As ulcerações podem surgir espontaneamente ou depois de variados tipos de trauma. O período entre o início das lesões e o diagnóstico correto costuma ser prolongado. Não existe nenhum tratamento padronizado ou algoritmo simples para a escolha da terapia. Neste artigo, os autores fazem uma ampla revisão da literatura atual acerca da fisiopatologia, do diagnóstico e do tratamento desta patologia através de análise sistemática das referências bibliográficas atuais nas bases de dados PubMed, Scielo, Medline e Lilacs.
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Nesterovitch AB, Hoffman MD, Simon M, Petukhov PA, Tharp MD, Glant TT. Mutations in the PSTPIP1 gene and aberrant splicing variants in patients with pyoderma gangrenosum. Clin Exp Dermatol 2011; 36:889-95. [DOI: 10.1111/j.1365-2230.2011.04137.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nesterovitch AB, Gyorfy Z, Hoffman MD, Moore EC, Elbuluk N, Tryniszewska B, Rauch TA, Simon M, Kang S, Fisher GJ, Mikecz K, Tharp MD, Glant TT. Alteration in the gene encoding protein tyrosine phosphatase nonreceptor type 6 (PTPN6/SHP1) may contribute to neutrophilic dermatoses. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 178:1434-41. [PMID: 21406173 DOI: 10.1016/j.ajpath.2010.12.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 12/15/2010] [Accepted: 12/23/2010] [Indexed: 11/17/2022]
Abstract
We have found a B2 repeat insertion in the gene encoding protein tyrosine phosphatase nonreceptor type 6 (PTPN6) in a mouse that developed a skin disorder with clinical and histopathological features resembling those seen in human neutrophilic dermatoses. Neutrophilic dermatoses are a group of complex heterogeneous autoinflammatory diseases that all demonstrate excessive neutrophil infiltration of the skin. Therefore, we tested the cDNA and genomic DNA sequences of PTPN6 from patients with Sweet's syndrome (SW) and pyoderma gangrenosum and found numerous novel splice variants in different combinations. Isoforms resulting from deletions of exons 2, 5, 11, and 15 and retention of intron 1 or 5 were the most common in a patients with a familial case of SW, who had a neonatal onset of an inflammatory disorder with skin lesions and a biopsy specimen consistent with SW. These isoforms were associated with a heterozygous E441G mutation and a heterozygous 1.7-kbp deletion in the promoter region of the PTPN6 gene. Although full-length PTPN6 was detected in all other patients with either pyoderma gangrenosum or SW, it was always associated with splice variants: a partial deletion of exon 4 with the complete deletion of exon 5, alterations that were not detected in healthy controls. The defect in transcriptional regulation of the hematopoietic PTPN6 appears to be involved in the pathogenesis of certain subsets of the heterogeneous group of neutrophilic dermatoses.
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Barbato MT, Bakos L, Masiero NCMS, Bolson P. Perfil clinicopatológico dos pacientes com pioderma gangrenoso do Hospital das Clínicas de Porto Alegre (RS) - Brasil (2000-2006). An Bras Dermatol 2008. [DOI: 10.1590/s0365-05962008000500006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
FUNDAMENTOS: O pioderma gangrenoso é doença neutrofílica pouco freqüente. Caracteriza-se por lesões cutâneas ulceradas, dolorosas, com bordas subminadas e violáceas. Os membros inferiores configuram o local mais acometido. Sua etiologia é incerta, mas em 50% dos casos encontra-se associação com outras doenças. A histopatologia é inespecífica, e o diagnóstico, essencialmente clínico. OBJETIVO: Avaliar o perfil clinicopatológico de pacientes com pioderma gangrenoso. MÉTODO: Estudo retrospectivo dos pacientes diagnosticados no período de 2000 a 2006 no Serviço de Dermatologia do Hospital de Clínicas de Porto Alegre. RESULTADOS: Foram observados 16 pacientes cuja idade média foi 49 anos, com predomínio do sexo feminino (62,5%). O período médio entre início da doença e diagnóstico foi de 1,6 ano. A forma clínica predominante foi a ulcerativa (81,25%), e 87,5% das lesões localizavam-se nos membros inferiores. O sintoma mais freqüentemente associado foi dor local (37,5%). Doze pacientes (66%) apresentaram doenças sistêmicas concomitantes. Doença de Crohn, diabetes e colagenoses foram as principais comorbidades encontradas. O tratamento mais utilizado foi a corticoterapia sistêmica, associada ou não a outros medicamentos (50%), tendo 43,75% dos pacientes apresentado recidiva do quadro. CONCLUSÕES: Os dados avaliados condizem com os encontrados na literatura. As doenças associadas mais prevalentes foram ileíte regional, diabetes melitus e afecções do tecido conectivo. O tratamento mais utilizado incluiu corticoterapia sistêmica. A maioria dos pacientes apresentou cicatrização completa , porém o número de recidivas foi elevado.
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Affiliation(s)
| | - Lucio Bakos
- Universidade Federal do Rio Grande do Sul; Hospital de Clínicas de Porto Alegre, Brasil
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Abstract
Pyoderma gangrenosum is rare in children and very rare in infants less than 1 year of age. We report Pyoderma gangrenosum in a 6-month-old girl without any associated disorders, which was well controlled with oral prednisone. This entity in infants usually presents with multiple lesions, mainly located on the face, buttocks, thighs, and extremities, which in some instances are associated with pathergy. Pyoderma gangrenosum in infants has a good response to therapy, and healing is usually achieved.
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Affiliation(s)
- Antonio Torrelo
- Department of Dermatology, Hospital del Niño Jesús, Madrid, Spain.
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18
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Ehling A, Karrer S, Klebl F, Schäffler A, Müller-Ladner U. Therapeutic management of pyoderma gangrenosum. ACTA ACUST UNITED AC 2004; 50:3076-84. [PMID: 15476233 DOI: 10.1002/art.20559] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Newman B, Cescon D, Domenchini A, Siminovitch KA. CD2BP1 and CARD15 mutations are not associated with pyoderma gangrenosum in patients with inflammatory bowel disease. J Invest Dermatol 2004; 122:1054-6. [PMID: 15102098 DOI: 10.1111/j.0022-202x.2004.22430.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Affiliation(s)
- Electra Nicolaidou
- Department of Dermatology, University of Athens School of Medicine, A. Sygros Hospital, Athens, Greece
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