Abstract
Our aim was to develop a fibroblast-free monolayer culture of human gastric mucosal cells, using the specimens obtained by routine endoscopic biopsy. Human gastric mucosa obtained from normal volunteers by endoscopic biopsy was dissociated from collagenase and hyaluronidase. Dissociated cells were cultured in supplemented Coon's modified Ham's F-12 medium. Within 24 hr of inoculation, the cells were attached to the culture dishes. This was followed by cellular outgrowth. On phase-contrast microscopy, all cells had epithelial characteristics and fibroblasts were not observed. Ninety percent of cells contained periodic acid Schiff reaction-positive mucous granules after diastase digestion consistent with mucous epithelial cells. Two percent of the cells gave a strong reaction for succinic dehydrogenase activity (parietal cells). Immunohistochemical staining for pepsinogen in cultured cells was negative. On EM, microvilli-like projections, junctional complexes, Golgi apparatus, and mucous granules were apparent in the majority of cells. Mitotic figures were observed by day 3 with Giemsa staining. Autoradiographically, these cells were able to incorporate [3H] TdR into the nuclei. Cells were capable of synthesizing DNA, and this function was inhibited by cycloheximide. Cells could be cultured for up to two weeks without fibroblast contamination. A method of primary monolayer culture of human gastric mucosa obtained by a routine endoscopic biopsy has been successfully developed.
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This work was supported in part by the Medical Research Service of the Veterans Administration. The paper was presented at the annual meeting of the American Gastroenterological Association, Chicago, May 1982.
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Terano, A., Mach, T., Stachura, J. et al. A monolayer culture of human gastric epithelial cells. Digest Dis Sci 28, 595–603 (1983). https://doi.org/10.1007/BF01299919
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DOI: https://doi.org/10.1007/BF01299919