Abstract
Objective To optimize primary culture conditions of human gastric mucosal fibre- blasts for further investigations of gastric cancer associated fibroblasts. Methods The fibroblasts were cul-tured primarily by explant method, and identified by immunohistochemistry, morphology and electron mi-croscopy. The effects of different culture conditions on emigration ratios of ceils were investigated to opti-mize the culture surface, medium and pH in primary culture of gastric mucosal fibroblasts. Results When the other conditions were the same,no significandy different emigration rate was found on the mouse tail-coated surface,fetal bovine serum-coated surface ,and nothing coated surface (P > 0.05 ). As to the role of different culture media including RPMI 1640 medium, DMEM and high-gluco DMEM,there was signifi-cantly higher emigration rate in the RPMI 1640 medium compared with other two media (P < 0.01, stand- ardized estimate = 0. 4688 ). Different pH values(pH = 7.0,7.4 and 7.8)of culture solution led to differ-ent emigration rate,and the best emigration rate was found in pH = 7.4 solution(P < 0.01, standardized estimate =0.5857 ). Furthermore, there was no interaetional effect on the cell emigration rate among cul- ture conditions. Conclusion The primary culture of human gastric mucosal fibroblasts can be greatly im-proved by optimizing culture conditions such as kinds of medium and pH values of culture solution. Key words: Gastric mucosa; Fibroblasts; Primary culture
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