Antigenicity and cross-reactivity of denatured fibril proteins of primary, secondary, and myeloma associated amyloids

Merrill D. Benson, Martha Skinner, Alan S. Cohen

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Antisera have been produced against amyloid fibril preparations of primary, secondary, and myeloma origins. These have revealed the presence of both idiotypic and shared antigenic determinants. A high degree of cross-reactivity among the 3 types of amyloid has been found irrespective of classification. One antiserum to a secondary amyloid fibril preparation proved to be directed against A protein (the major nonimmunoglobulin constituent of secondary amyloid fibrils). This antiserum detected A protein in several of the secondary amyloids as well as in two primary amyloid fibril preparations which were degraded with alkali. These findings indicate that amyloid fibrils of various origins have similarities in composition and, therefore, may have common factors involved in fibrillogenesis.

Original languageEnglish (US)
Pages (from-to)650-659
Number of pages10
JournalThe Journal of Laboratory and Clinical Medicine
Issue number4
StatePublished - Apr 1975


ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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