Abstract
AIMS To investigate the effects of sporidesmin on cells cultured from the epithelial surface of sheep gallbladder walls, and to examine cellular responses to sporidesmin using cultures prepared from the gallbladders of sheep from selection lines that differed in sensitivity to sporidesmin-induced liver damage. METHODS Gallbladders were obtained following slaughter of lambs that were selected for resistance or susceptibility to sporidesmin-induced liver damage, or were not selected (controls). Monolayer cell cultures were established after incubation of excised gallbladders with protease to detach the lining epithelial cells from the muscular and connective tissue of the gallbladder wall. Released cells were harvested and transferred to culture flasks or dishes, then incubated with 1 µg/mL sporidesmin and were examined at 5 minute intervals, up to 3 hours, using light microscopy to monitor loss of attachment of cultured cells. Immunofluorescence staining of cell cultures was used to identify cytokeratin 19 as a marker for biliary epithelial cells, and to characterise sporidesmin-induced change in the cellular distribution of actin microfilaments. Gallbladder size was also measured. RESULTS In cultures incubated with sporidesmin,...Continue Reading
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Feb 15, 2020·New Zealand Veterinary Journal·T W Jordan
Mar 7, 2021·Toxins·Magalie Boucher, T William Jordan
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