Abstract
Lectin binding to the glycocalyx of isolated rat pancreatic acinar cells was studied by flowcytometric measurements. The pancreatic exocrine cells were prepared after collagenase digestion and cleaned in a density gradient. The fluorescence of cells was measured in a FACScan after binding of FITC marked WGA or UEA I. The binding of lectins was inhibited by preabsorption of WGA-FITC with N-acetyl-glucosamine, sialic acid or chitinous and by preabsorption of UEA-FITC with alpha-L-fucose, respectively. Furthermore, we were able to measure a decreased WGA-FITC and UEA-FITC binding after a short preincubation of isolated cells with the peptide hormone cholecystokinin and its agonists (caerulein, pentagastrin).
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