Methods Lipofectin method was used to transfect pCR3.1/CCK_2R vector expressing gastrin receptor into a colon cancer cell line col0320.Gastrin and gastrin antagonist were used to up-regulate and down-regulate the signaling pathway,respectively.是什么意思_Methods Lipofectin method was used to transfect pCR3.1/CCK_2R vector expressing gastrin receptor into a colon cancer cell line col0320.Gastrin and gastrin antagonist were used to up-regulate and down-regulate the signaling pathway,respectively.在线翻译_英语_读音_用法_例句