Effect of gastrin on differentiation of rat intestinal epithelial cells in vitro  

作　　者：ZhouWang Wei-WenChen Ru-LiuLi BinWen Jing-BoSun 

机构地区：[1]PiweiInstitute,GuangzhouUniversityofTCM,Guangzhou,510405,GuangdongProvince,China [2]TheSecondAffiliatedHoslaitalofGuangzhouUniversityofTCM,Guangzhou,510120,GuangdongProvince.China

出　　处：《World Journal of Gastroenterology》2003年第8期1786-1790,共5页世界胃肠病学杂志（英文版）

基　　金：the Major State Basic Research Development Program of China(973 Program)No.GI9990544;the National Natural Science Foundation of China,No.39970906

摘　　要：AIM: To investigate the effect of gastrin on differentiation of IEC-6 cell line in vitro.METHODS: IEC-6 cells were incubated with gastrin. On day 7 after treatment, cell morphology was examined by light microscope, and on day 20, the cellular ultrastructures were examined by electron microscope. After exposure to gastrin for 6 hours, villin mRNA was analyzed by reverse transcription-polymerase chain reaction, and on day 7, the expression of villin was examined by immunocytochemical analysis with laser confocal microscope.RESULTS: After exposure to gastrin, IEC-6 cells showed differentiated phenotypes as villas enterocytes and contained an abundance of plasma, small nuclei with nucleoli, and were arranged regularly. There were numerous microvilli around edge of the cells, and several cells showed columnar structures. Villin mRNA expression in cytoplasm was increased in comparison with control.CONCLUSION: Differentiated characteristics of villus enterocytes and phenotypic changes of rat intestinal epithelial cells(IEC-6) are induced by gastrin, and the effects of gastrin are correlated to increased villin expression.AIM: To investigate the effect of gastrin on differentiation of IEC-6 cell line in vitro.METHODS: IEC-6 cells were incubated with gastrin. On day 7 after treatment, cell morphology was examined by light microscope, and on day 20, the cellular ultrastructures were examined by electron microscope. After exposure to gastrin for 6 hours, villin mRNA was analyzed by reverse transcription-polymerase chain reaction, and on day 7, the expression of villin was examined by immunocytochemical analysis with laser confocal microscope.RESULTS: After exposure to gastrin, IEC-6 cells showed differentiated phenotypes as villas enterocytes and contained an abundance of plasma, small nuclei with nucleoli, and were arranged regularly. There were numerous microvilli around edge of the cells, and several cells showed columnar structures. Villin mRNA expression in cytoplasm was increased in comparison with control.CONCLUSION: Differentiated characteristics of villus enterocytes and phenotypic changes of rat intestinal epithelial cells (IEC-6) are induced by gastrin, and the effects of gastrin are correlated to increased villin expression.

关 键 词：肠上皮细胞 胃泌激素 绒毛蛋白 体外试验 

分 类 号：R333[医药卫生—人体生理学]