粘蛋白是一组高相对分子质量 (Mr)高度糖基化的糖蛋白。正常时以膜结合型或分泌型的形式分布于粘膜表面 ,对粘膜起润滑、保护作用。粘蛋白的质和 (或 )量发生改变与胃癌的发生发展有关 Mucin is a group of highly-glycosylated glycoproteins of high relative molecular mass (Mr). Normally in the form of membrane-bound or secretory distribution in the mucosal surface, the mucosa from lubrication, protection. Mucin quality and (or) the amount of change and the occurrence and development of gastric cancer