肿瘤细抱的特性与细胞膜结构的改变有密切的关系。嵌入到细胞膜类脂双层中的糖蛋白和糖脂参与了细胞多种重要的生理活动,这些多糖链能够特异地与植物凝集素结合产生凝集作用,并可暂时中止转化细胞的恶性增生。然而有关植物凝集素作用的分子机理还不十分清楚,有人报道促细胞分裂凝集素可诱导人外周淋巴细胞、鼠肾淋巴细胞膜流动性增 The characteristics of the tumor are closely related to the changes in the structure of the cell membrane. The glycoproteins and glycolipids embedded in the lipid bilayer of cell membranes participate in a variety of important physiological activities of cells. These polysaccharide chains can specifically bind to lectins to produce agglutination and can temporarily stop the malignant proliferation of transformed cells. However, the molecular mechanisms involved in the action of lectins are not well understood. It has been reported that mitogen-induced mitogens can induce the increase of membrane fluidity in lymphocytes from peripheral lymphocytes and mouse kidneys.