粘多糖(Muco-Polysaccharides)是含有氨基己糖的多糖类,它可以单独形式存在,也可与硫酸根结合形成硫酸酯,因此它包含有中性粘多糖和酸性粘多糖,前者与蛋白质结合紧密,后者包括软骨素硫酸(Chondroitin Sulphuric acid)和透明质酸(Hyaluronic acid),是消化道所有上皮粘蛋白的主要成分。此外,它还分布在软骨基质、动脉壁等结缔组织内。肿瘤组织内粘多糖类变化的研究,已有不少报告,不少人认为胃癌组织内含有酸性粘液质;Lev认为胃癌及癌边缘上皮的硫粘蛋白含量增多。Garcia-Bunuel认为胃癌粘液质分泌情 Muco-Polysaccharides are polysaccharides containing hexosamides, either alone or in combination with sulfate to form sulfates, so that they contain both neutral and acidic mucopolysaccharides, the former being bound to a protein Tight, the latter including Chondroitin Sulphuric acid and Hyaluronic acid, are the major components of all epithelial mucins in the digestive tract. In addition, it is also distributed in the cartilage matrix, artery wall and other connective tissue. Many studies have reported on the changes of mucopolysaccharide in tumor tissue. Many people think that gastric mucosa is contained in gastric cancer tissue. Lev thought that the content of thionuculin in gastric cancer and marginal epithelium increased. Garcia-Bunuel that mucus secretion of gastric cancer