Nina van Beek1, Khalaf Kridin2,3, Elena Bühler1, Anne S Kochan4, Sascha Ständer1, Ralf J Ludwig2, Detlef Zillikens1, Enno Schmidt1,2, Claudia Günther4. 1. Department of Dermatology, University of Lübeck, Lübeck, Germany. 2. Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany. 3. Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel. 4. Department of Dermatology, Carl Gustav Carus University Hospital, Technische Universität Dresden, Dresden, Germany.
Abstract
IMPORTANCE: Mucous membrane pemphigoid (MMP) is a rare, heterogeneous subepithelial autoimmune bullous disease. The association between its clinical and immunological features is yet to be fully evaluated. OBJECTIVES: To characterize the clinical, immunoserological, and immunopathological characteristics of patients with MMP and to identify site- and autoantigen-specific characteristics. DESIGN, SETTING, AND PARTICIPANTS: A retrospective cohort study encompassing all consecutive patients diagnosed with MMP from January 2007 through February 2020 in 2 tertiary referral centers in Germany. MAIN OUTCOMES AND MEASURES: The clinical, immunoserological, and immunopathological features of eligible patients were evaluated. Associations of different anatomical sites and autoantigens were assessed using a multivariable logistic regression model. RESULTS: The study encompassed 154 patients (96 [62.3%] women and 58 [37.7%] men; mean [SD] age at diagnosis, 66.2 [13.8] years) with MMP, of whom 125 (81.2%), 61 (39.6%), 34 (22.1%), and 16 (10.4%) presented with lesions involving the oral, ocular, nasal, and genital mucosae, respectively, and 35 (22.7%) presented with cutaneous involvement. Among the 154 patients, the most frequently targeted antigen was BP180 (90 patients [58.4%]), followed by laminin 332 (13 patients [8.4%]) and BP230 (3 patients [1.9%]). Ocular disease was inversely associated with oral (adjusted odds ratio [aOR], 0.02; 95% CI, 0.01-0.13) and nasal (aOR, 0.20; 95% CI, 0.04-0.91) involvement and was associated with a 13-fold increased risk of malignant neoplasm (aOR, 13.07; 95% CI, 1.56-109.36). Anti-laminin 332 reactivity was associated with malignant neoplasm (aOR, 23.27; 95% CI, 1.83-296.68), whereas anti-BP180 NC16A immunoglobulin G seropositivity was associated with absence of ocular lesions (aOR, 0.09; 95% CI, 0.01-0.99). CONCLUSIONS AND RELEVANCE: In this cohort study of patients with MMP, malignant neoplasms were associated with ocular disease and anti-laminin 332 reactivity, suggesting potential benefit of malignant neoplasm screening in these patients.
IMPORTANCE: Mucous membrane pemphigoid (MMP) is a rare, heterogeneous subepithelial autoimmune bullous disease. The association between its clinical and immunological features is yet to be fully evaluated. OBJECTIVES: To characterize the clinical, immunoserological, and immunopathological characteristics of patients with MMP and to identify site- and autoantigen-specific characteristics. DESIGN, SETTING, AND PARTICIPANTS: A retrospective cohort study encompassing all consecutive patients diagnosed with MMP from January 2007 through February 2020 in 2 tertiary referral centers in Germany. MAIN OUTCOMES AND MEASURES: The clinical, immunoserological, and immunopathological features of eligible patients were evaluated. Associations of different anatomical sites and autoantigens were assessed using a multivariable logistic regression model. RESULTS: The study encompassed 154 patients (96 [62.3%] women and 58 [37.7%] men; mean [SD] age at diagnosis, 66.2 [13.8] years) with MMP, of whom 125 (81.2%), 61 (39.6%), 34 (22.1%), and 16 (10.4%) presented with lesions involving the oral, ocular, nasal, and genital mucosae, respectively, and 35 (22.7%) presented with cutaneous involvement. Among the 154 patients, the most frequently targeted antigen was BP180 (90 patients [58.4%]), followed by laminin 332 (13 patients [8.4%]) and BP230 (3 patients [1.9%]). Ocular disease was inversely associated with oral (adjusted odds ratio [aOR], 0.02; 95% CI, 0.01-0.13) and nasal (aOR, 0.20; 95% CI, 0.04-0.91) involvement and was associated with a 13-fold increased risk of malignant neoplasm (aOR, 13.07; 95% CI, 1.56-109.36). Anti-laminin 332 reactivity was associated with malignant neoplasm (aOR, 23.27; 95% CI, 1.83-296.68), whereas anti-BP180 NC16A immunoglobulin G seropositivity was associated with absence of ocular lesions (aOR, 0.09; 95% CI, 0.01-0.99). CONCLUSIONS AND RELEVANCE: In this cohort study of patients with MMP, malignant neoplasms were associated with ocular disease and anti-laminin 332 reactivity, suggesting potential benefit of malignant neoplasm screening in these patients.
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