Shared and unique determinants on human and murine intestinal epithelium as established by monoclonal antibodies

M E Little1, J K Roche

  • 1Department of Medicine, Duke University Medical Center, Durham, NC 27710.

Molecular Immunology
|March 1, 1988
PubMed

To characterize macromolecules from intestinal epithelium known to be reactive with human disease sera, monoclonal antibodies (MAbs) were elicited to determine cell localization, organ-specificity and cross-reactivity of the immunodominant determinants. Eight MAbs, reactive with murine epithelial cell-associated components by enzyme-linked immunosorbent assay, immunoblotting and immunofluorescence, demonstrated binding by the same techniques to constituents in determinant-bearing epithelial macromolecules were glycoproteins of approximately 180,000 (human and 199,000 (murine) mol. wt. Pre-incubation of sera from patients with chronic inflammatory bowel disease (but not normal human sera or control protein) inhibited binding of the 199 K macromolecule by three MAbs elicited and characterized in this study.

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