本实验根据生物素化凝集素具有与细胞表面及胞浆中的糖基呈特异性结合的特点，应用ＡＢＣ法，观察研究七种凝集素在正常口腔粘膜、口腔鳞状上皮癌组织、口腔上皮异常增生组织、口腔扁平苔癣组织中的结合形式变化。从细胞表面糖基变化的角度得出结论：凝集素可作为一种分化标记用于口腔癌前病变的早期诊断，口腔扁平苔癣组织中所显示的特殊的凝集素结合形式，表明其不应视为癌前病变。 In this experiment, according to the characteristics of biotinylated lectin binding with the glycosyl groups on cell surface and cytoplasm, ABC method was used to observe the effect of seven kinds of lectins on normal oral mucosa, oral squamous cell carcinoma, oral epithelium Abnormal proliferation of tissues, oral lichen planus tissues in the combination of changes. From the perspective of changes in cell surface glycosylation conclusion: Lectins can be used as a marker of differentiation for the early diagnosis of oral precancerous lesions, lichen planus oral lichen displayed in the special form of binding, indicating that it should not As a precancerous lesion.