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Position: Home > Articles > Effect of Ghrelin on H~+-K~+-ATPase mRNA Expression and Activity in Gastric Mucosal Cells in Rat Jiangsu Journal of Agricultural Sciences 2009,25 (4) 89-92

Ghrelin对大鼠胃黏膜上皮细胞中H~+-K~+-ATP酶基因表达和活性的影响

作  者:
杜改梅;刘茂军;罗碧平;蒋加进;胡志华;戴鼎震;陈钟鸣
单  位:
金陵科技学院动物科学与技术学院;江苏省农业科学院兽医研究所农业部动物疫病诊断与免疫重点开放实验室国家兽用生物制品工程技术研究中心
关键词:
ghrelin;胃黏膜上皮细胞;大鼠;H+-K+-ATPase
摘  要:
为揭示Ghrelin对胃酸分泌的作用,从断奶大鼠中分离新鲜胃黏膜,培养胃黏膜上皮细胞,培养30 h后,试验组培养液更换为分别含有1×10-4μmol/L、1×10-3μmol/L、1×10-2μmol/L和1×10-1μmol/L Ghrelin的新鲜培养液,对照组换为不含Ghrelin的正常新鲜培养液。继续培养4 h后,收集培养液和细胞,分别测定细胞中H+-K+-ATPasemRNA表达和活性。结果表明:1×10-3μmol/LGhrelin可显著增加细胞中H+-K+-ATPasemRNA的表达(P<0.05),1×10-4μmol/L、1×10-3μmol/L和1×10-2μmol/L Ghrelin明显增加了胃黏膜上皮细胞中H+-K+-ATPase的活性。这表明Ghrelin体外作用于胃黏膜上皮细胞可刺激胃酸的分泌。
译  名:
Effect of Ghrelin on H~+-K~+-ATPase mRNA Expression and Activity in Gastric Mucosal Cells in Rat
作  者:
DU Gai-mei1,LIU Mao-jun2,LUO Bi-ping1,JIANG Jia-jin1,HU Zhi-hua1,DAI Ding-zhen1,CHEN Zhong-ming1(1.Department of Animal Science and Technology,Jinling Institution of Technology,Nanjing 210038,China;2.Institute of Veterinary Medicine,Jiangsu Academy of Agricultural Sciences,Key Laboratory of Animal Diseases Diagnostic and Immunology,Ministry of Agriculture,National Center for Engineering Research of Veterinary Bio-products,Nanjing 210014,China)
关键词:
ghrelin;gastric mucosal cells;rat;H+-K+-ATPase
摘  要:
To investigate the effect of ghrelin on gastric acid secretion,gastric mucosa was obtained from weaning rats.Gastric mucosal cells were dispersed from freshly gastric mucosa and exposed for 4 h to 1×10-4μmol/L,1×10-3μmol/L,1×10-2μmol/L,1×10-1μmol/L ghrelin,respectively after 30 h culture.Culture medium and cells were collected for the determination of mRNA expression and activity of H+-K+-ATPase.The results showed that ghrelin significantly augmented H+-K+-ATPase mRNA expression at 1×10-3μmol/L,and increased H+-K+-ATPase activity of gastric mucosal cells at 1×10-4μmol/L,1×10-3μmol/L and 1×10-2μmol/L in vitro.The results indicated that ghrelin acts on gastric mucosal cells to stimulate gastric acid secretion.

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