Specificity and idiotype analysis of a monoclonal anti-DNA antibody.

Published

Journal Article

The binding properties and idiotypes of a monoclonal anti-DNA antibody were studied to investigate the control of specificity in this autoimmune response. This antibody, A9, was derived from the fusion of spleen cells of an MRL-lpr/lpr mouse and the cell line X63-Ag8.653. In inhibition binding studies, A9 showed preference for single-stranded DNA and bound both ribo- and deoxyribohomopolymers. An antiserum prepared in a rabbit against A9 showed anti-idiotypic specificity after absorption with BALB/c immunoglobulins and the BALB/c myeloma MOPC 195. At least two distinct idiotypic specificities could be demonstrated by this serum, one apparently exclusive to A9 and one commonly expressed in sera of MRL-lpr/lpr mice. Serum levels of the commonly expressed A9 idiotype were also elevated in sera of C3H mice expressing the lpr gene suggesting association with B-cell activation induced by this genetic mechanism. The demonstration of a commonly expressed A9 idiotype indicates that some autoantibody variable region determinants may be genetically controlled.

Full Text

Duke Authors

Cited Authors

  • Pisetsky, D

Published Date

  • June 1, 1983

Published In

Volume / Issue

  • 27 / 3

Start / End Page

  • 348 - 356

PubMed ID

  • 6191903

Pubmed Central ID

  • 6191903

International Standard Serial Number (ISSN)

  • 0090-1229

Language

  • eng

Conference Location

  • United States