Membrane Attack Complex of Complement in Dermatitis Herpetiformis

Mark V Dahl, Ronald J. Falk, Randall Carpenter, Alfred F. Michael

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The assembly of membrane attack complex (MAC) of complement implies activation of complement to the attachment of C9 and the presence of MAC on tissue suggests a possible pathogenic role for complement in disease since MAC is able to damage membranes. We examined normal skin of five patients with dermatitis herpetiformis for the presence of MAC using a monoclonal antibody (poly C9-MA) that recognizes a neoantigen of C9 that is not present on monomeric C9 but is common to both isolated MAC and to polymerized C9. Granular deposits of polymerized C9 were found at the sites of IgA deposition in the dermal papillae of normal skin from all patients. The pathologic importance of this finding is uncertain.

Original languageEnglish (US)
Pages (from-to)70-72
Number of pages3
JournalArchives of Dermatology
Volume121
Issue number1
DOIs
StatePublished - Jan 1985

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