凝集素为一类可与糖化合物糖基侧链结合的糖蛋白,同时每一种凝集素具有只对某一种特殊的单糖或寡糖专一性结合的特性。已有的研究表明,恶性肿瘤细胞的生长失控、分化紊乱和浸润转移,均与细胞的糖化合物成分在性质或数量上的异常有一定的关系。人结直肠癌花生凝集素受体的亲和力明显地高于非癌粘膜,双槐藊豆凝集素受体亲和力 Lectins are a class of glycoproteins that bind to the glycosyl side chains of sugar compounds, while each lectin has the property of specifically binding to a particular monosaccharide or oligosaccharide. Previous studies have shown that the uncontrolled growth, differentiation, and metastasis of malignant tumor cells all have a relationship with the abnormality in the nature or number of sugar compounds of cells. The affinity of human lectin receptors for human colorectal cancer is significantly higher than that of non-cancer mucosa, and the affinity of the two cowpea lectin receptors