世界胃肠病学杂志(英文版)
世界胃腸病學雜誌(英文版)
세계위장병학잡지(영문판)
WORLD JOURNAL OF GASTROENTEROLOGY
2005年
48期
7597-7601
,共5页
Celiac disease%Gliadin%Cytoskeleton%Multicellular spheroids
AIM: To evaluate the interplay between gliadin and LoVo cells and the direct effect of gliadin on cytoskeletal patterns.METHODS: We treated LoVo multicellular spheroids with digested bread wheat gliadin in order to investigate their morphology and ultrastructure (by means of light microscopy and scanning electron microscopy), and the effect of gliadin on actin (phalloidin fluorescence)and the tight-junction protein occludin and zonula occluden-1.RESULTS: The treated spheroids had deep holes and surface blebs, whereas the controls were smoothly surfaced ovoids. The incubation of LoVo spheroids with gliadin decreased the number of intracellular actin filaments, impaired and disassembled the integrity of the tight-junction system.CONCLUSION: Our data obtained from an "in vivolike" polarized culture system confirm the direct noxious effect of gliadin on the cytoskeleton and tight junctions of epithelial cells. Unlike two-dimensional cell culture systems, the use of multicellular spheroids seems to provide a suitable model for studying cell-cell interactions.