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Ahmed AR, Kalesinskas M, Kooper-Johnson S. Paraneoplastic autoimmune Laminin-332 syndrome (PALS): Anti-Laminin-332 mucous membrane pemphigoid as a prototype. Autoimmun Rev 2023; 22:103444. [PMID: 37673192 DOI: 10.1016/j.autrev.2023.103444] [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: 08/17/2023] [Accepted: 09/03/2023] [Indexed: 09/08/2023]
Abstract
IMPORTANCE Laminin-332 is an important component of the basement membrane. Recently, autoantibodies to Laminin-332 have been described in several autoimmune diseases. Many of these autoimmune diseases have a high incidence of malignancy. The importance of Laminin-332 autoantibodies and its relationship to malignancy is highlighted by using Laminin-332 Pemphigoid (LM-332Pg) as a prototype. OBJECTIVE To identify several autoimmune diseases that have autoantibodies to Laminin-332 present, and to determine the prevalence of malignancy in them. Using Laminin-332 Pemphigoid (LM-332Pg) as a prototype, to compare clinical profiles of LM-332Pg patients with and without cancer. By identifying the temporal detection of cancer, can the influence of autoantibodies to Laminin-332 on prognosis be determined. EVIDENCE REVIEW A literature search was conducted to identify autoimmune and inflammatory diseases in which autoantibodies to Laminin-332 were present. Subsequently, the rate of malignancy in these autoimmune diseases was determined. A search for publications on LM-332Pg patients to determine cancer rates and clinical outcomes to examine if a relationship can be proposed, was performed. FINDINGS Autoantibodies to Laminin-332 were detected in recent studies of systemic lupus erythematosus (SLE), psoriasis, bronchiolitis obliterans (BO), graft-vs-host disease (GVH), bullous pemphigoid (BP), lichen planus (LP), epidermolysis bullosa acquisita (EBA), and membranous glomerulonephropathy (MGN). A high incidence of cancer rate was reported in these autoimmune diseases including primary Sjögren's syndrome (pSS), systemic sclerosis (SS), dermatomyositis (DM), multiple sclerosis (MS), immune thrombocytopenia purpura (ITP), and rheumatoid arthritis (RA). Data analysis demonstrated that LM-332Pg patients had a higher risk of developing ovarian, uterine, lung, gastric cancers and leukemia. The incidence for breast cancer was lower, when compared with global cancer rates. Patients diagnosed with cancer after the presence of LM-332Pg had higher rates of mortality and lower rates of remission, compared to those diagnosed with cancer prior to the discovery/diagnosis of LM-332Pg. When studied, levels of Laminin-332 autoantibodies correlated with the presence or absence of malignancy. CONCLUSIONS AND RELEVANCE Preliminary analysis suggests that autoantibodies to Laminin-332 are present in multiple autoimmune diseases, which also have a high incidence of malignancy. Detailed analysis of available data highlights that patients who developed LM-332Pg after cancer was diagnosed, had a more favorable prognosis, compared to patients who developed cancer when LM-332Pg was previously present. Preliminary data would suggest that autoantibodies to Laminin-332 could serve as an important biomarker in certain patients, for correlation with possible incidence of malignancy.
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Affiliation(s)
- A Razzaque Ahmed
- Department of Dermatology, Tufts University School of Medicine, Boston, MA 02111, USA; Center for Blistering Diseases, Boston, MA 02135, USA.
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Shi L, Li X, Qian H. Anti-Laminin 332-Type Mucous Membrane Pemphigoid. Biomolecules 2022; 12:biom12101461. [PMID: 36291670 PMCID: PMC9599625 DOI: 10.3390/biom12101461] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 12/03/2022] Open
Abstract
Anti-laminin (LM) 332-type mucous membrane pemphigoid (MMP) is a rare autoimmune bullous disease and was originally discovered as anti-epiligrin cicatricial pemphigoid. Anti-LM332-type MMP has clinical manifestations similar to those of other types of MMP and can only be distinguished through the detection of circulating autoantibodies against LM332. Our group and others have established a number of immunological methods with varying sensitivity and specificity for detection of anti-LM332 autoantibodies; however, none of the established methods has been widely used for clinical diagnosis. There is currently no unified standard treatment, and it is very difficult to completely cure anti-LM332-type MMP. In addition, an increasing body of evidence suggests that there may be a strong correlation between anti-LM332-type MMP and tumors. In this article, we review the current progression of diagnosis and treatment of anti-LM332-type MMP, as well as the possible correlation between anti-LM332-type MMP and tumors.
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Affiliation(s)
- Luhuai Shi
- Dermatology Hospital of Jiangxi Province, Jiangxi Provincial Clinical Research Center for Skin Diseases, Candidate Branch of National Clinical Research Center for Skin Diseases, Dermatology Institute of Jiangxi Province, The Affiliated Dermatology Hospital of Nanchang University, Nanchang 330001, China
| | - Xiaoguang Li
- Department of Laboratory Medicine, Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
| | - Hua Qian
- Department of Laboratory Medicine, Chronic Disease Research Center, Medical College, Dalian University, Dalian 116622, China
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Böcskei Z, Viinikka E, Dormegny L, Bigaut K, Speeg C. [Paraneoplastic ophthalmopathies]. J Fr Ophtalmol 2021; 45:119-136. [PMID: 34598825 DOI: 10.1016/j.jfo.2021.08.002] [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: 05/31/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
Ocular paraneoplastic syndromes are rare conditions that can affect any part of the eye at any age. Thus, every ophthalmologist should be familiar with their management, as some of them may reveal severe, life-threatening conditions. These consist overwhelmingly of neuro-ophthalmological manifestations, affecting the optic nerve (paraneoplastic optic neuritis), retina (paraneoplastic retinopathy) or neurological pathways generating eye movements (saccadic intrusion, oculomotor palsy, nystagmus...); occasionally, they involve the anterior segment, orbit or uveal tract. As some of these manifestations appear to be quite common and non-specific, any systemic or especially neurologic comorbidities should increase suspicion. Treatment relies first on oncologic management, and then often more targeted therapy for the associated immune involvement.
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Affiliation(s)
- Z Böcskei
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, quai Louis-Pasteur, 67000 Strasbourg, France; Service de neurologie, hôpitaux universitaires de Strasbourg, 1, avenue de Molière, 67200 Strasbourg, France.
| | - E Viinikka
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, quai Louis-Pasteur, 67000 Strasbourg, France
| | - L Dormegny
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, quai Louis-Pasteur, 67000 Strasbourg, France
| | - K Bigaut
- Service de neurologie, hôpitaux universitaires de Strasbourg, 1, avenue de Molière, 67200 Strasbourg, France
| | - C Speeg
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, quai Louis-Pasteur, 67000 Strasbourg, France
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Giurdanella F, Nijenhuis AM, Diercks GFH, Jonkman MF, Pas HH. Keratinocyte footprint assay discriminates antilaminin-332 pemphigoid from all other forms of pemphigoid diseases. Br J Dermatol 2019; 182:373-381. [PMID: 31090065 PMCID: PMC7027452 DOI: 10.1111/bjd.18129] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2019] [Indexed: 12/11/2022]
Abstract
Background Antilaminin‐332 mucous membrane pemphigoid is a chronic severe pemphigoid disease characterized by autoantibodies to laminin‐332. At present no commercial assay is available to demonstrate antilaminin‐332 antibodies, and diagnosis relies on in‐house techniques with limited sensitivities. Objectives In order to move, keratinocytes cultured in vitro secrete laminin‐332 to attach to the culture dish. In that way, they leave behind a unique footprint trail of laminin‐332. We aimed to develop a sensitive and specific laboratory assay to determine antilaminin‐332 autoantibodies in patient serum based on binding of patient IgG to these unique footprints. Methods Normal human keratinocytes were grown on glass coverslips and incubated with patient or control serum for 1 h. The binding of IgG was then investigated by immunofluorescence. After validating the test for its ability to identify antilaminin‐332 autoantibodies it was converted into a daily available test based on binding of IgG to dried coverslips that can be stored frozen. The staining patterns of sera from patients with antilaminin‐332 pemphigoid were then compared with those of sera from patients with other autoimmune bullous diseases and normal human sera. Results IgG of all antilaminin‐332 pemphigoid sera (n = 16) bound to laminin‐332 footprints, while all normal human controls (n = 55) were negative. From the sera of patients with other diseases (n = 72) four sera tested positive. The footprint assay was also positive for sera that were negative by salt‐split skin analysis, demonstrating that it is a very sensitive technique. Conclusions The keratinocyte footprint assay is a fast and specific assay to confirm or rule out the presence of antilaminin‐332 autoantibodies. What's already known about this topic? Antilaminin‐332 mucous membrane pemphigoid is a severe form of pemphigoid, and patients may have an increased risk of malignancies. The diagnosis of antilaminin‐332 mucous membrane pemphigoid is complicated by the lack of specific commercial tests for antilaminin‐332 antibodies and can be confirmed only in specialized laboratories. Keratinocytes in culture need laminin‐332 for adhesion and migration and therefore deposit it on the bottom of the culture dish.
What does this study add? The keratinocyte footprint assay detects antilaminin‐332 autoantibodies in patient serum using the native laminin‐332 produced by cultured keratinocytes.
What is the translational message? The keratinocyte footprint assay is a fast and specific assay to confirm or rule out the presence of antilaminin‐332 autoantibodies.
Linked Comment: https://doi.org/10.1111/bjd.18372. https://doi.org/10.1111/bjd.18761 available online
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Affiliation(s)
- F Giurdanella
- Center for Blistering Diseases, Department of Dermatology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, the Netherlands
| | - A M Nijenhuis
- Center for Blistering Diseases, Department of Dermatology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, the Netherlands
| | - G F H Diercks
- Center for Blistering Diseases, Department of Dermatology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, the Netherlands
| | - M F Jonkman
- Center for Blistering Diseases, Department of Dermatology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, the Netherlands
| | - H H Pas
- Center for Blistering Diseases, Department of Dermatology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, the Netherlands
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La Placa M, Balestri R, Tartari F, Sechi A, Ferrara F, Loi C, Patrizi A, Bardazzi F. Mucous Membrane Pemphigoid-Associated Malignancies: Case Series and a Brief Overview of the Literature. Dermatol Pract Concept 2019; 9:119-125. [PMID: 31106014 DOI: 10.5826/dpc.0902a07] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2019] [Indexed: 10/31/2022] Open
Abstract
Background Mucous membrane pemphigoid (MMP) is a heterogeneous group of blistering disorders affecting the mucosae with or without skin involvement, characterized by the presence of autoantibodies to components of the basement membrane zone, including the bullous pemphigoid antigen BP180 and β4 integrin. Current literature has shown that a minority of patients present circulating antibodies to laminin-332 and this population seems to be associated with a relatively high risk of malignancy. Objective To present our personal case series of patients with MMP-associated malignancy from a dermatology university hospital. Methods Twenty-two patients affected by MMP were seen in the period between 2001 and 2016; in 4 patients (18%) an associated cancer was detected. Results These patients were 2 men and 2 women, with a mean age of 69.7 years (range, 48-83). The associated malignancies included a breast cancer, a pancreatic adenocarcinoma, a metastatic laryngeal carcinoma, and a hepatic carcinoma. All patients had negative results for both BP180 and laminin-332 autoantibodies. Conclusion We confirm that MMP patients have a relatively high possibility of developing a solid cancer, but the autoantibody detection is not mandatory and is probably correlated with the severity of the disease.
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Affiliation(s)
- Michelangelo La Placa
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Riccardo Balestri
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Federico Tartari
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Andrea Sechi
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Francesca Ferrara
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Camilla Loi
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Annalisa Patrizi
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Federico Bardazzi
- Dermatology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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Lambiel S, Dulguerov P, Laffitte E, Leuchter I. Paraneoplastic mucous membrane pemphigoid with ocular and laryngeal involvement. BMJ Case Rep 2017; 2017:bcr-2017-220887. [PMID: 28801511 PMCID: PMC5623279 DOI: 10.1136/bcr-2017-220887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 73-year-old woman was treated 8 years previously for synchronous breast and uterine neoplasms. She presented with a severe sore throat, odynophagia, dysphonia, dyspnoea, ocular irritation and weight loss over the last 3 months. Physical examination revealed ulcerations in the oral cavity, posterior pharyngeal wall and supraglottic larynx, nasal crusting, bilateral conjunctivitis and three cutaneous blisters. A diagnosis of anti-laminin 5 mucous membrane pemphigoid was retained, based on skin biopsy, direct immunofluorescence and immunoprecipitation. A positron emission tomography (PET)-CT detected multiple adenopathies. Cytology revealed adenocarcinoma with an immunocytology compatible with a breast origin and this was considered as a late metastatic recurrence of her previous breast cancer. A treatment of prednisone, dapsone and hormonotherapy was introduced, but intravenous immunoglobulin and rituximab were added due to new mucosal lesions. Despite treatment, a posterior laryngeal scar and bilateral symblepharon were developed. After 3 years, the patient is still alive and reports a satisfactory quality of life.
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Affiliation(s)
- Silvia Lambiel
- Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Pavel Dulguerov
- Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Emmanuel Laffitte
- Département des Spécialités de Médecine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Igor Leuchter
- Département des Neurosciences Cliniques, Hôpitaux Universitaires de Genève, Geneva, Switzerland
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Kartan S, Shi VY, Clark AK, Chan LS. Paraneoplastic Pemphigus and Autoimmune Blistering Diseases Associated with Neoplasm: Characteristics, Diagnosis, Associated Neoplasms, Proposed Pathogenesis, Treatment. Am J Clin Dermatol 2017; 18:105-126. [PMID: 27878477 DOI: 10.1007/s40257-016-0235-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Autoimmune paraneoplastic and neoplasm-associated skin syndromes are characterized by autoimmune-mediated cutaneous lesions in the presence of a neoplasm. The identification of these syndromes provides information about the underlying tumor, systemic symptoms, and debilitating complications. The recognition of these syndromes is particularly helpful in cases of skin lesions presenting as the first sign of the malignancy, and the underlying malignancy can be treated in a timely manner. Autoimmune paraneoplastic and neoplasm-associated bullous skin syndromes are characterized by blister formation due to an autoimmune response to components of the epidermis or basement membrane in the context of a neoplasm. The clinical manifestations, histopathology and immunopathology findings, target antigens, associated neoplasm, current diagnostic criteria, current understanding of pathogenesis, and treatment options for a selection of four diseases are reviewed. Paraneoplastic pemphigus manifests with clinically distinct painful mucosal erosions and polymorphic cutaneous lesions, and is often associated with lymphoproliferative neoplasm. In contrast, bullous pemphigoid associated with neoplasm presents with large tense subepidermal bullae of the skin, and mild mucosal involvement, but without unique clinical features. Mucous membrane pemphigoid associated with neoplasm is a disorder of chronic subepithelial blisters that evolve into erosions and ulcerations that heal with scarring, and involves stratified squamous mucosal surfaces. Linear IgA dermatosis associated with neoplasm is characterized by annularly grouped pruritic papules, vesicles, and bullae along the extensor surfaces of elbows, knees, and buttocks. Physicians should be aware that these autoimmune paraneoplastic and neoplasm-associated syndromes can manifest distinct or similar clinical features as compared with the non-neoplastic counterparts.
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Holbrechts S, Gorham J, Sideris S, Meert AP, Durieux V, Berghmans T, Sculier JP. Autoimmune paraneoplastic syndromes associated to lung cancer: A systematic review of the literature: Part 2: Hematologic, cutaneous and vascular syndromes. Lung Cancer 2017; 106:93-101. [PMID: 28285701 DOI: 10.1016/j.lungcan.2017.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The development of new immune treatment in oncology and particularly for lung cancer may induce new complications, particularly activation or reactivation of auto-immune diseases. In this context, a systematic review on the auto-immune paraneoplastic syndromes associated with lung cancer appears useful. This article is the second of a series of five and deals with hematologic, cutaneous and vascular syndromes.
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Affiliation(s)
| | - Julie Gorham
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology, Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Spyridon Sideris
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology, Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Anne-Pascale Meert
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology, Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire Facultaire de Médecine Factuelle (ULB), Belgium
| | - Valérie Durieux
- Laboratoire Facultaire de Médecine Factuelle (ULB), Belgium; Bibliothèque des Sciences de la Santé, Université libre de Bruxelles (ULB), Belgium
| | - Thierry Berghmans
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology, Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire Facultaire de Médecine Factuelle (ULB), Belgium
| | - Jean-Paul Sculier
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology, Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire Facultaire de Médecine Factuelle (ULB), Belgium.
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Recke A, Ludwig RJ. From bedside to bench--reverse translational medicine. Scientific lessons from revertant mosaicism in 'knockout' humans. Exp Dermatol 2014; 23:549-50. [PMID: 24961831 DOI: 10.1111/exd.12475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2014] [Indexed: 12/20/2022]
Abstract
While the transition from basic life science research to clinical applications is often much more cumbersome than promised, Gostyński et al. took the opposite approach and demonstrated how a scholarly, biology-guided perspective on human skin disease can reveal basic principles of human biology. Hereditary blistering diseases represent not only a disastrous fate for affected patients, but also an opportunity for understanding human molecular physiology and pathophysiology. On the basis of their clinical expertise, Gostyński et al. have elegantly used differences between lesional and non-lesional as a unique opportunity to dissect the role of structural skin proteins--namely type XVII collagen, laminin β3 and type VII collagen--in melanocyte biology, thus elucidating a new concept in melanocyte biology by transferring knowledge in reverse direction from bedside to bench.
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Affiliation(s)
- Andreas Recke
- Lübeck Institute for Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
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Vassileva S, Drenovska K, Manuelyan K. Autoimmune blistering dermatoses as systemic diseases. Clin Dermatol 2014; 32:364-75. [DOI: 10.1016/j.clindermatol.2013.11.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Woo SB. Diseases of the oral mucosa. MCKEE'S PATHOLOGY OF THE SKIN 2012:362-436. [DOI: 10.1016/b978-1-4160-5649-2.00011-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Yamada H, Nobeyama Y, Matsuo K, Ishiji T, Takeuchi T, Fukuda S, Hashimoto T, Nakagawa H. A case of paraneoplastic pemphigus associated with triple malignancies in combination with antilaminin-332 mucous membrane pemphigoid. Br J Dermatol 2012; 166:230-1. [PMID: 21777224 DOI: 10.1111/j.1365-2133.2011.10520.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Ahuero AE, Jakobiec FA, Bhat P, Ciralsky JB, Papaliodis GN. Paraneoplastic conjunctival cicatrization: two different pathogenic types. Ophthalmology 2010; 117:659-64. [PMID: 20045572 DOI: 10.1016/j.ophtha.2009.09.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Revised: 07/31/2009] [Accepted: 09/08/2009] [Indexed: 01/27/2023] Open
Abstract
PURPOSE To describe the clinical and immunopathologic features of patients with 2 different types of paraneoplastic conjunctival cicatrization. DESIGN Retrospective observational case analyses with a review of the literature. PARTICIPANTS One patient with paraneoplastic ocular cicatricial pemphigoid (POCP) and 1 patient with paraneoplastic pemphigus (PNP) with ocular involvement. METHODS Critical review of clinical history, diagnostic studies, and immunopathologic results of biopsies in the 2 cases, together with a review of the literature. MAIN OUTCOME MEASURES Ability to recognize paraneoplastic conjunctival cicatrization and to diagnose the conditions accurately. RESULTS The first patient, 46 years of age, presented with conjunctival scarring and symblephara, cough, oral lesions, and chest rash. Concurrently, a diagnosis of pulmonary squamous cell carcinoma was made. Conjunctival biopsy revealed a subepithelial bulla, an inflammatory infiltrate of T and B lymphocytes, and basement membrane zone deposition of immunoglobulin (Ig)-G and C3 consistent with POCP. The second patient, 54 years of age, had a recently diagnosed B-cell chronic lymphocytic leukemia, followed 1 month later with ocular irritation and bilateral extensive symblephara. Extensive oral lesions and skin involvement of the lower half of the body were seen. Skin biopsy disclosed subepidermal bullae and mostly T cells with virtually no B cells in the dermal infiltrate (the patient was being treated with rituximab). Linear subepithelial deposition of IgG and C3 and deposition within the epidermis were consistent with PNP. Further indirect immunofluorescence and immunoprecipitation studies with the patient's serum-derived antibodies established PNP as the definitive diagnosis. CONCLUSIONS Underlying malignancy is an important consideration in younger patients with puzzling bilateral cicatrizing conjunctivitis, and a paraneoplastic condition can be established from either a conjunctival or a skin biopsy. FINANCIAL DISCLOSURE(S) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Audrey E Ahuero
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts 02114, USA
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Rose C, Schmidt E, Kerstan A, Thoma-Uszynski S, Wesselmann U, Käsbohrer U, Zillikens D, Shimanovich I. Histopathology of anti-laminin 5 mucous membrane pemphigoid. J Am Acad Dermatol 2009; 61:433-40. [PMID: 19700013 DOI: 10.1016/j.jaad.2009.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 02/02/2009] [Accepted: 02/05/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND Anti-laminin 5 mucous membrane pemphigoid (MMP) is an autoimmune blistering disease characterized by autoantibodies against the major basement membrane component laminin 5 (laminin 332, epiligrin). OBJECTIVE AND METHODS We reviewed 17 biopsy specimens from 9 patients with anti-laminin 5 MMP in an attempt to define typical histopathologic features of the disease. RESULTS Fifteen specimens showed subepidermal blister formation, while two biopsy specimens revealed an epithelial ulcer. In 11 biopsies a sparse to moderate inflammatory infiltrate composed of lymphocytes and neutrophils with some eosinophils was observed. Four biopsies showed a dense infiltrate dominated by neutrophils in two cases and by eosinophils in one case. The remaining biopsy revealed a dense lymphoplasmacellular infiltrate without granulocytes. Scarring of the upper dermis was present only in 5 specimens. Immunohistochemical analysis localized type IV collagen to the dermal side of the blister, suggesting that split formation occurred within the lamina lucida of the cutaneous basement membrane. LIMITATIONS The number of patients studied was relatively small. CONCLUSIONS Histopathology of anti-laminin 5 MMP is characterized by subepidermal blistering and a sparse to moderate superficial lymphohistiocytic infiltrate with neutrophils and/or eosinophils. Both infiltrate density and composition may vary, making anti-laminin 5 MMP indistinguishable from other autoimmune subepidermal blistering diseases by histopathology alone. Scarring is present only in a minority of cases and is not a sensitive clue to the diagnosis of anti-laminin 5 MMP.
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Affiliation(s)
- Christian Rose
- Department of Dermatology, University of Lübeck, Lübeck, Germany
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Mucous membrane pemphigoid following reduced intensity conditioning allogeneic haematopoietic SCT for biphenotypic leukaemia. Bone Marrow Transplant 2009; 45:195-6. [PMID: 19430504 DOI: 10.1038/bmt.2009.98] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mitsuya J, Hara H, Ito K, Ishii N, Hashimoto T, Terui T. Metastatic ovarian carcinoma-associated subepidermal blistering disease with autoantibodies to both the p200 dermal antigen and the gamma 2 subunit of laminin 5 showing unusual clinical features. Br J Dermatol 2008; 158:1354-7. [PMID: 18294311 DOI: 10.1111/j.1365-2133.2008.08483.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Anti-p200 pemphigoid is an autoimmune subepidermal blistering disease characterized by autoantibodies to an unknown 200-kDa acidic noncollagenous glycoprotein of the lower lamina lucida, whereas antilaminin 5 mucous membrane pemphigoid is characterized by autoantibodies to a major basement membrane extracellular matrix, laminin 5. We report a 64-year-old Japanese woman with a subepidermal blistering disease associated with lymph node metastasis of ovarian clear cell carcinoma 10 years after its surgical treatment. Clinical features showed severe blisters and erosions on multiple mucous membranes (i.e. lip, oral cavity, nose, eye, genitalia and anus) and on both the periungual and subungual regions. This is the first report in which an immunoblot analysis revealed the unusual combination of autoantibodies to both the p200 antigen and the gamma 2 subunit of laminin 5.
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Affiliation(s)
- J Mitsuya
- Department of Dermatology, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo 173-8610, Japan.
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Lo Russo L, Fedele S, Guiglia R, Ciavarella D, Lo Muzio L, Gallo P, Di Liberto C, Campisi G. Diagnostic Pathways and Clinical Significance of Desquamative Gingivitis. J Periodontol 2008; 79:4-24. [PMID: 18166088 DOI: 10.1902/jop.2008.070231] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Rutar T, Chan MF, Acharya NR, Naseri A. Cicatrising conjunctivitis due to paraneoplastic pemphigoid. Br J Ophthalmol 2007; 91:1562-3. [PMID: 17947274 DOI: 10.1136/bjo.2007.115634] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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21
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Sadler E, Lazarova Z, Sarasombath P, Yancey KB. A widening perspective regarding the relationship between anti-epiligrin cicatricial pemphigoid and cancer. J Dermatol Sci 2007; 47:1-7. [PMID: 17467241 DOI: 10.1016/j.jdermsci.2007.02.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 02/26/2007] [Accepted: 02/27/2007] [Indexed: 01/13/2023]
Abstract
Anti-epiligrin cicatricial pemphigoid (AECP) is a chronic, autoimmune, subepidermal blistering disease characterized by circulating anti-basement membrane autoantibodies to laminin 5. Recent studies have shown that patients with this form of cicatricial pemphigoid have an increased relative risk for malignant solid tumors. The mechanism underlying this association of AECP and cancer is unknown, but there is accumulating evidence that laminin 5 plays a central role. In this article we report a patient with AECP and co-associated cutaneous T cell lymphoma and summarize all to date reported cases of AECP associated with malignancies. In addition we provide a review of the biology of laminin 5 and its potential role in cancer development.
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Affiliation(s)
- Elke Sadler
- Department of Dermatology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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22
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Radfar L, Fatahzadeh M, Shahamat Y, Sirois D. Paraneoplastic epidermolysis bullosa acquisita associated with multiple myeloma. SPECIAL CARE IN DENTISTRY 2006; 26:159-63. [PMID: 16927739 DOI: 10.1111/j.1754-4505.2006.tb01718.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Epidermolysis bullosa acquisita is a rare acquired autoimmune subepidermal blistering disease that clinically resembles other vesiculobullous lesions such as pemphigus vulgaris and cicatricial pemphigoid. Multiple myeloma is the most common plasma cell malignant disorder characterized by a single clonal expansion and increased level of a single immunoglobulin. Epidermolysis bullosa acquisita has been reported with other systemic diseases such as lymphoma. In this case report, we present a patient with paraneoplastic epidermolysis bullosa acquisita associated with multiple myeloma.
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Affiliation(s)
- Lida Radfar
- Department of Oral Diagnostic Sciences, School of Dental Medicine, State University of New York at Buffalo, USA.
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23
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Vroman DT, Breckenridge RR, Solomon KD, Sandoval HP, Fernández de Castro LE. Bronchogenic Squamous Cell Carcinoma Presenting as Cicatrizing Conjunctivitis. Cornea 2006; 25:611-3. [PMID: 16783152 DOI: 10.1097/01.ico.0000196447.79817.ce] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To report a case of cicatrizing conjunctivitis as the initial manifestation of a bronchogenic squamous cell carcinoma. METHODS Case report of a 57-year-old patient with bilateral history of ocular pain, redness, and discharge, with no apparent predisposing factors. Examination revealed chemosis, pseudomembrane, and symblepharon formation, and multiple ulcerated pustular and vesicular periocular and perioral lesions literature review. RESULTS Skin biopsy was compatible with bullous pemphigoid. Two months later he developed respiratory symptoms, and a squamous cell carcinoma was diagnosed. CONCLUSIONS This case demonstrates cicatrizing conjunctivitis as a possible paraneoplastic syndrome associated with squamous cell lung carcinoma.
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Affiliation(s)
- David T Vroman
- Magill Research Center for Vision Correction, Storm Eye Institute, Medical University of South Carolina, Charleston, SC 29425, USA.
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24
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Abstract
Mucous membrane pemphigoid (MMP) is a sub-epithelial vesiculobullous disorder. It is now quite evident that a number of sub-epithelial vesiculobullous disorders may produce similar clinical pictures, and also that a range of variants of MMP exist, with antibodies directed against various hemidesmosomal components or components of the epithelial basement membrane. The term immune-mediated sub-epithelial blistering diseases (IMSEBD) has therefore been used. Immunological differences may account for the significant differences in their clinical presentation and responses to therapy, but unfortunately data on this are few. The diagnosis and management of IMSEBD on clinical grounds alone is impossible and a full history, general, and oral examination, and biopsy with immunostaining are now invariably required, sometimes supplemented with other investigations. No single treatment regimen reliably controls all these disorders, and it is not known if the specific subsets of MMP will respond to different drugs. Currently, apart from improving oral hygiene, immunomodulatory-especially immunosuppressive-therapy is typically used to control oral lesions. The present paper reviews pemphigoid, describing the present understanding of this fascinating clinical phenotype, summarising the increasing number of subsets with sometimes-different natural histories and immunological features, and outlining current clinical practice.
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Affiliation(s)
- J Bagan
- University of Valencia, Spain
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25
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Abstract
Mucous membrane pemphigoid (MMP) is a chronic, subepithelial autoimmune disease, which predominantly involves mucosal surfaces and results in mucosal blistering, ulceration, and subsequent scarring. This article discusses the epidemiology, clinical presentation, pathophysiology, diagnosis, and management of MMP, with mention of related subepithelial bullous dermatoses.
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Affiliation(s)
- Thomas P Sollecito
- Department of Oral Medicine, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA.
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26
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Abstract
PURPOSE To describe a case of mucous membrane pemphigoid (MMP) with ocular manifestations in a patient subsequently diagnosed with B-cell chronic lymphocytic leukemia (CLL). METHODS Case report and literature review. RESULTS A 64-year-old man presented with redness and irritation of both eyes. The patient also had blistering lesions on the roof of his mouth, trunk, and buttocks as well as bilateral conjunctival ulceration and symblepharon formation. A complete blood count performed before initiating treatment of presumed mucous membrane pemphigoid revealed a markedly increased white blood cell count (83,920) with a predominance of lymphocytes. Hematologic evaluation including immunophenotyping flow cytometry resulted in the diagnosis of B-cell chronic lymphocytic leukemia. Cyclophosphamide treatment improved his MMP and decreased the white blood cell count. CONCLUSIONS Mucous membrane pemphigoid has been reported in association with a variety of nonhematologic malignancies. This case suggests that mucous membrane pemphigoid may also occur in B-cell CLL and supports the concept that autoantibodies play a role in the pathogenesis of this cicatricial conjunctival disease.
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Affiliation(s)
- Rajeev K Seth
- Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, TX, USA
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Chamberlain AJ, Cooper SM, Allen J, Dean D, Baxter KF, Goodfield MJD, Wojnarowska F. Paraneoplastic immunobullous disease with an epidermolysis bullosa acquisita phenotype: two cases demonstrating remission with treatment of gynaecological malignancy. Australas J Dermatol 2004; 45:136-9. [PMID: 15068465 DOI: 10.1111/j.1440-0960.2004.00068.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two cases of paraneoplastic immunobullous disease occurring in women with gynaecological malignancies are reported. Both cases demonstrated mechanobullous mucocutaneous blistering as is typically seen in epidermolysis bullosa acquisita. Their immunopathology, however, favoured a dermal-binding mucous membrane pemphigoid (MMP) (or possibly bullous pemphigoid) for patient 1 and laminin-5 MMP for patient 2. Both patients showed resolution of blistering within 1 year of treatment of their malignancies; uterine and ovarian carcinoma, respectively. These cases are of interest because of their paraneoplastic nature; as well as overlapping clinicoimmunopathological features. In addition, patient 2 is, as far as we are aware, the first report of ovarian-carcinoma-associated laminin-5 MMP.
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Abstract
Part of periodontology involves the diagnosis and treatment of a variety of non-plaque-related diseases of the periodontium. The International Workshop for a Classification of Periodontal Diseases and Conditions noted that the periodontist may be called upon to manage non-plaque-related mucocutaneous disorders either alone, or as part of a treatment team consisting of physicians, dentists or other allied health care professionals. This informational paper will review the etiology, clinical manifestations, diagnosis, and treatment of the most common chronic mucocutaneous diseases, including those that may present as desquamative gingivitis or intraoral vesiculobullous lesions. This paper is intended for the use of periodontists and other members of the dental profession.
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29
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Egan CA, Lazarova Z, Darling TN, Yee C, Yancey KB. Anti-epiligrin cicatricial pemphigoid: clinical findings, immunopathogenesis, and significant associations. Medicine (Baltimore) 2003; 82:177-86. [PMID: 12792304 DOI: 10.1097/01.md.0000076003.64510.00] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
We report the clinical and immunopathologic findings in a cohort of 35 patients with anti-epiligrin cicatricial pemphigoid (AECP). These patients have a mucosal predominant subepithelial blistering disease that is clinically indistinguishable from other forms of cicatricial pemphigoid. The mucosal surfaces of the mouth and eye are most commonly involved. The skin is also involved in most patients, but usually this is less severe than mucosal involvement. AECP is characterized by the binding of circulating IgG autoantibodies to the dermal side of 1M NaCl split human skin on indirect immunofluorescence microscopy. These IgG antibasement membrane autoantibodies target laminin 5, a heterotrimeric protein consisting of alpha3, beta3, and gamma2 subunits. IgG autoantibodies predominantly target the G domain within the alpha subunit. The presence of circulating IgG autoantibodies are specific for the diagnosis of AECP and are not seen in patients with other autoimmune blistering diseases or normal volunteers. Furthermore, we expand on data previously reported on the finding of an increased relative risk for solid cancer in patients with AECP, especially in the first year after blister onset. The majority of cancers documented in a cohort of 35 patients assembled over 12 years of study were adenocarcinomas that were at an advanced stage at their time of detection. This circumstance is thought to account for a high incidence of mortality among AECP patients who develop an associated cancer. AECP patients also demonstrate a significant risk for mortality as a consequence of treatment with systemic immunosuppressives. The current longitudinal study suggests that only a minority of AECP patients go into remission.
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Affiliation(s)
- Conleth A Egan
- Dermatology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.
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30
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Parisi E, Raghavendra S, Werth VP, Sollecito TP. Modification to the approach of the diagnosis of mucous membrane pemphigoid: A case report and literature review. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS 2003; 95:182-6. [PMID: 12582358 DOI: 10.1067/moe.2003.5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mucous membrane pemphigoid (MMP) is a subepithelial blistering disease predominantly involving the mucosal surfaces. Distinct subgroups of MMP have recently been identified by using advanced immunopathologic and immunochemical techniques and are described in the literature on the basis of their clinical features and antigenic specificities. Antiepiligrin MMP has been described as an immunochemically distinct entity. Evidence of an existing relationship between malignancy and antiepiligrin MMP has been well documented in the medical literature. This case report illustrates a case of antiepiligrin MMP in a patient with an advanced cancer of the bladder.
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Affiliation(s)
- Ernesta Parisi
- University of Pennsylvania, Department of Oral Medicine, Philadelphia, USA
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31
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Sugerman PB, Savage NW, Walsh LJ, Zhao ZZ, Zhou XJ, Khan A, Seymour GJ, Bigby M. The pathogenesis of oral lichen planus. CRITICAL REVIEWS IN ORAL BIOLOGY AND MEDICINE : AN OFFICIAL PUBLICATION OF THE AMERICAN ASSOCIATION OF ORAL BIOLOGISTS 2002; 13:350-65. [PMID: 12191961 DOI: 10.1177/154411130201300405] [Citation(s) in RCA: 465] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Both antigen-specific and non-specific mechanisms may be involved in the pathogenesis of oral lichen planus (OLP). Antigen-specific mechanisms in OLP include antigen presentation by basal keratinocytes and antigen-specific keratinocyte killing by CD8(+) cytotoxic T-cells. Non-specific mechanisms include mast cell degranulation and matrix metalloproteinase (MMP) activation in OLP lesions. These mechanisms may combine to cause T-cell accumulation in the superficial lamina propria, basement membrane disruption, intra-epithelial T-cell migration, and keratinocyte apoptosis in OLP. OLP chronicity may be due, in part, to deficient antigen-specific TGF-beta1-mediated immunosuppression. The normal oral mucosa may be an immune privileged site (similar to the eye, testis, and placenta), and breakdown of immune privilege could result in OLP and possibly other autoimmune oral mucosal diseases. Recent findings in mucocutaneous graft-versus-host disease, a clinical and histological correlate of lichen planus, suggest the involvement of TNF-alpha, CD40, Fas, MMPs, and mast cell degranulation in disease pathogenesis. Potential roles for oral Langerhans cells and the regional lymphatics in OLP lesion formation and chronicity are discussed. Carcinogenesis in OLP may be regulated by the integrated signal from various tumor inhibitors (TGF-beta 1, TNF-alpha, IFN-gamma, IL-12) and promoters (MIF, MMP-9). We present our recent data implicating antigen-specific and non-specific mechanisms in the pathogenesis of OLP and propose a unifying hypothesis suggesting that both may be involved in lesion development. The initial event in OLP lesion formation and the factors that determine OLP susceptibility are unknown.
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Affiliation(s)
- P B Sugerman
- AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, MA 02451, USA.
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32
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Gilmour TK, Meyer PA, Rytina E, Todd PM. Antiepiligrin (laminin 5) cicatricial pemphigoid complicated and exacerbated by herpes simplex virus type 2 infection. Australas J Dermatol 2001; 42:271-4. [PMID: 11903160 DOI: 10.1046/j.1440-0960.2001.00518.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A 50-year-old man with antiepiligrin (laminin 5) cicatricial pemphigoid (AeCP) involving the eyes, mouth and skin required a combination of systemic drug therapies to suppress the ocular disease. Herpes simplex virus type 2 infection of the mouth and pharynx precipitated an acute deterioration, with laryngeal involvement and an increase in oral ulceration. This is an unusual complication of long-term immunosuppression and illustrates some of the difficulties in the management of patients with AeCP. Clinical improvement was obtained with oral antiviral therapy and adjustment of his immunosuppressive regimen.
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Affiliation(s)
- T K Gilmour
- Department of Dermatology, Addenbrooke's Hospital, Cambridge, United Kingdom.
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33
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Affiliation(s)
- A M Powell
- Immunofluorescence Department, St John's Institute of Dermatology, St Thomas' Hospital, London, England, United Kingdom.
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34
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Kanitakis J. Indirect immunofluorescence microscopy for the serological diagnosis of autoimmune blistering skin diseases: a review. Clin Dermatol 2001; 19:614-21. [PMID: 11604309 DOI: 10.1016/s0738-081x(00)00180-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- J Kanitakis
- Laboratory of Dermatopathology, Department of Dermatology, Hôp. Ed. Herriot, Lyon, France
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35
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Challacombe SJ, Setterfield J, Shirlaw P, Harman K, Scully C, Black MM. Immunodiagnosis of pemphigus and mucous membrane pemphigoid. Acta Odontol Scand 2001; 59:226-34. [PMID: 11570526 DOI: 10.1080/00016350152509256] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Pemphigus and pemphigoid are two of a group of bullous diseases affecting oral mucosa and skin. Mucous membrane pemphigoid (MMP) comprises a heterogeneous group of disorders characterized by subepithelial separation and the deposition of immunoglobulins and complement along the basement membrane zone (BMZ). The target antigens in the epithelium and BMZ determine the nature of the condition, and recently there have been considerable improvements in our understanding of the BMZ antigenic composition. Pemphigus vulgaris (PV) is characterized by autoantibodies of the IgG isotype to the desmosomal glycoprotein desmoglein (Dsg) 3, whereas pemphigus foliaccus targets Dsg1, although at least 50% of PV patients have additional autoantibodies to Dsg1. The clinical phenotype appears to be determined by the relative amounts of Dsg1 and Dsg3. Patients with oral or mucosal PV have predominantly Dsg3 autoantibodies. The most frequently targeted antigen in MMP is bullous pemphigoid antigen 180 (BP180), although bullous pemphigoid antigen 230 (BP230), laminin 5, and beta 4 integrin are also involved. Circulating IgG and IgA antibodies may bind to different epitopes of BP180 namely the NC 16A domain or COOH -terminal domain. Pure ocular disease has been associated with IgA antibodies to a 45-kDa antigen and IgG antibodies to the 205-kDa antigen b4 integrin. The use of salt-split skin substrate enables differentiation between epidermal and dermal 'binders'. Since both the specificity and the antibody titer appear to have direct relationships with the disease severity, and a combination of clinical score and antibody titer provides valuable prognostic data, these investigations should be carried out on a more routine basis.
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Affiliation(s)
- S J Challacombe
- Department of Oral Medicine & Pathology, and Institute of Dermatology, Guy's, King's and St Thomas' Medical and Dental College, London, UK
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