脑胶质瘤中CD133、神经巢蛋白的表达及其临床意义

目的 探讨CD133神经巢蛋白(nestin)在人脑胶质瘤组织中的表达及其临床意义.方法 应用免疫组织化学法检测65例脑胶质瘤组织标本、19例正常脑组织标本中CD133、nestin的表达.结果 65例脑胶质瘤组织和19例正常脑组织标本中CD133阳性细胞率分别为18.46%和0(P＜0.01),nestin阳性细胞率分别为23.79%、5.16%(P＜0.01).对65例脑胶质瘤组织中nestin和CD133阳性细胞率分别进行多个病理级别之间的均数比较:Ⅰ级和Ⅲ、Ⅳ级间、Ⅱ级和Ⅲ、Ⅳ级、Ⅲ级和Ⅳ级间差异均有统计学意义(P均＜0.01).nestin阳性细胞率和CD133阳性细胞率呈正相关关系(r=0.408,P＜0.05).结论 检测脑胶质瘤组织中CD133、nestin的表达有助于胶质瘤的诊断及恶性程度判断.

Expression of CD133 and nestin in human glioma and its clinical significances

Objective To explore the expression of CD133 and nestin in human glioma cell of patients with neuroglioeytoma and to see whether CD133 and nestin expression associate with the differentiation and pathologic grading.Methods The expression of CD133 and nesfin was detected by immunohistochemistry staining in 65 cases of human glioma and 19 specimens of normal brain tissues.Results The rate of the CD133 positive ceUs was 18.46%in human glioma and 0 in the control group(P＜0.01),and that of nesfin was 23.79%and 5.16%respectively.The positive cell rates of CD133 or nestin varied accordingly to different pathological grades.There were significant difference between grade Ⅰ and grade Ⅲ or grade Ⅳ (P＜0.01).There were difference between grade Ⅱ and grade Ⅲor grade Ⅳ (P＜0.01).The same significance were also found between grade Ⅲ and grade Ⅳ(P＜0.01).The higher pathological grades had higher positive cell rates.There was a significant corl~lation between the rate of CD133 positive cells and that of nestin in experimental group (r=0.408,P＜0.01).Conclusion Detecting CD133 and nestin in the human glioma can be used in diagnosing,judging the malignancy degree and the prognosis.