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2014•DermatologyRequires access

The Value of Anti-Desmoglein Enzyme-Linked Immunosorbent Assay in the Immunological Follow-Up of Pemphigus

N. Bellon, Chantal André, É. Sbidian, Nicolás Ortonne, P. Wolkenstein, O. Chosidow, S. Oro

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Abstract

BACKGROUND: The value of anti-desmoglein 1 and 3 (Dsg1, Dsg3) enzyme-linked immunosorbent assay (ELISA) is controversial in the follow-up of pemphigus. OBJECTIVE: To evaluate anti-desmoglein ELISA (Dsg ELISA) in the follow-up of pemphigus and compare ELISA with direct and indirect immunofluorescence in complete remission (CR). METHODS: We performed a retrospective monocenter study of patients with pemphigus and consecutive sera samples collected at baseline (M0), 12 months (M12) and 24 or 36 months after M0 (M24/36). Tests were compared in CR and in active disease. Direct immunofluorescence and circulating autoantibodies were compared for patients with stable CR. RESULTS: We included 36 patients. At M12, ELISA values did not differ between CR and active disease. At M24/36, Dsg3 but not Dsg1 ELISA values were lower in CR (p = 0.07). For 5/8 patients with stable CR, direct immunofluorescence and ELISA findings remained positive. CONCLUSION: In routine practice, Dsg ELISA seems to be of little interest for immunological follow-up of pemphigus.

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BACKGROUND: The value of anti-desmoglein 1 and 3 (Dsg1, Dsg3) enzyme-linked immunosorbent assay (ELISA) is controversial in the follow-up of pemphigus. OBJECTIVE: To evaluate anti-desmoglein ELISA (Dsg ELISA) in the follow-up of pemphigus and compare ELISA with direct and indirect immunofluorescence in complete remission (CR). METHODS: We performed a retrospective monocenter study of patients with pemphigus and consecutive sera samples collected at baseline (M0), 12 months (M12) and 24 or 36 months after M0 (M24/36). Tests were compared in CR and in active disease. Direct immunofluorescence and circulating autoantibodies were compared for patients with stable CR. RESULTS: We included 36 patients. At M12, ELISA values did not differ between CR and active disease. At M24/36, Dsg3 but not Dsg1 ELISA values were lower in CR (p = 0.07). For 5/8 patients with stable CR, direct immunofluorescence and ELISA findings remained positive. CONCLUSION: In routine practice, Dsg ELISA seems to be of little interest for immunological follow-up of pemphigus.

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Available abstract

BACKGROUND: The value of anti-desmoglein 1 and 3 (Dsg1, Dsg3) enzyme-linked immunosorbent assay (ELISA) is controversial in the follow-up of pemphigus. OBJECTIVE: To evaluate anti-desmoglein ELISA (Dsg ELISA) in the follow-up of pemphigus and compare ELISA with direct and indirect immunofluorescence in complete remission (CR). METHODS: We performed a retrospective monocenter study of patients with pemphigus and consecutive sera samples collected at baseline (M0), 12 months (M12) and 24 or 36 months after M0 (M24/36). Tests were compared in CR and in active disease. Direct immunofluorescence and circulating autoantibodies were compared for patients with stable CR. RESULTS: We included 36 patients. At M12, ELISA values did not differ between CR and active disease. At M24/36, Dsg3 but not Dsg1 ELISA values were lower in CR (p = 0.07). For 5/8 patients with stable CR, direct immunofluorescence and ELISA findings remained positive. CONCLUSION: In routine practice, Dsg ELISA seems to be of little interest for immunological follow-up of pemphigus.

Key concepts: Pemphigus, Desmoglein 1, Desmoglein 3, Immunology, Medicine, Value (mathematics), Desmoglein, Enzyme

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