路易斯寡糖-X及CD24在鼻内翻性乳头状瘤中的表达

目的探讨路易斯寡糖-X(sialyl Lewis-X,SLeX)和CD24的表达与鼻内翻性乳头状瘤(nasal inverted papilloma,NIP)病理特征的关系。方法对11例NIP组织标本进行HE染色,并用SleX及CD24单克隆抗体进行免疫组织化学染色分析。结果11例NIP患者中,1例(9.1%)为重度不典型增生,但尚未突破基底膜。SleX特异性染色定位于细胞膜,NIP组中有9例(81.8%)阳性表达,对照组中有1例(16.7%)阳性表达(P<0.05)。CD24特异性染色定位于细胞膜及细胞浆,NIP组中有8例(72.7%)阳性表达,对照组中只有少量淋巴细胞阳性表达,鼻黏膜上皮细胞阴性表达。结论部分NIP在诊断时就伴有重度不典型增生,同时有CD24表达,是一种交界性肿瘤。SleX在NIP中的表达及基质炎性细胞的浸润提示其与炎性反应关系密切。

Expression of SleX and CD24 in nasal inverted papilloma

OBJECTIVE To investigate the expression of SleX and CD24 in nasal inverted papilloma and its pathologic features.METHODS HE staining were conducted to study the pathologic features in specimens of 11 cases with nasal inverted papilloma. Further,immunohistochemistry stain for SleX and CD24 were performed in total specimens.RESULTS One case(9.1%) was diagnosed as severe atypical hyperplasia but tumor cells did not invaded basal membranes.SleX staining located at cell membranes. Positive SleX staining was found in 9 specimens (81.8%) and 1 normal nasal epithelium (16.7%).CD24 staining located in cytoplasm.Positive CD24 staining was found in 8 specimens of nasal inverted papilloma (72.7%). CD24 was negative in nasal epithelial cells and only a few lymphocytes were positive.CONCLUSION Some cases of nasal inverted papilloma are diagnosed with severe atypical hyperplasia.Most of cases express CD24,so nasal inverted papilloma may be a borderline tumor.Expression of SleX and infiltration of inflammatory cells suggest that nasal inverted papilloma may be related to inflammatory reactions.