癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (5): 311-313.doi: 10.3969/j.issn.1004-616x.2005.05.016

• 肿瘤防治 • 上一篇    下一篇

P21WAF1/CIP1、 P16蛋白表达与人脑神经胶质瘤的相关分析

姜又红;隋承光;孟凡东;马 萍;王晓华;戴晓淳   

  1. 中国医科大学附属第一医院肿瘤研究所,辽宁 沈阳 110001
  • 收稿日期:2004-05-17 修回日期:2004-06-18 出版日期:2005-09-30 发布日期:2005-09-30
  • 通讯作者: 姜又红

Correlation Analysis Between Expression of P21WAF1/CIP1,P16 Proteins and Human Gliomas

JIANG You-hong;SUI Cheng-guang;MENG Fan-dong;MA Ping;WANG Xiao-hua;DAI Xiao-chun   

  1. Institute of Cancer Research of the First Affiliated Hospital of China Medical University,Shenyang 110001,Liaoning,China
  • Received:2004-05-17 Revised:2004-06-18 Online:2005-09-30 Published:2005-09-30
  • Contact: JIANG You-hong

摘要: 背景与目的: 探讨P21WAF1/CIP1、P16两种抑癌基因与人脑神经胶质瘤恶性程度的关系。 材料与方法: 采用 SABC免疫组织化学方法对98例人脑胶质瘤组织及12例正常脑组织标本中P21WAF1/CIP1和P16的表达进行检测,并进行相关分析。 结果: P21WAF1/CIP1和P16阳性表达率在人脑胶质瘤中分别为58.16%和42.86%,与正常脑组织中的表达情况差异有统计学意义;P21WAF1/CIP1蛋白和P16蛋白阳性表达率均随着胶质瘤的恶性程度的增高而降低;P21WAF1/CIP1蛋白和P16蛋白可协同表达。 结论: P21WAF1/CIP1与P16蛋白的阳性表达率及协同表达率可在一定程度上反映胶质瘤细胞的恶性生物学行为,可以作为一项判断其恶性程度的有效指标。

关键词: 脑胶质瘤, P21WAF1/CIP1蛋白, P16蛋白, 免疫组织化学

Abstract: BACKROUND & ATM: To investigate the relationship between glioma malignancy grading and P21WAF1/CIP1, P16 gene expressing levels. MATERIAL AND METHODS: The expression levels of P21WAF1/CIP1 and P16 proteins were detected in 98 cases of brain glioma using SABC immunohistochemical staining. Eight normal brain tissues were used as control. RESULTS: The positive expression rates of P21WAF1/CIP1 and P16 protein in glioma were 58.16% and 42.86%respectively, anda significant difference was observed between gliomas and control.The expression intensity of P21WAF1/CIP1 and P16 decreased with the gliomas grade increasing. Coexpression of P21WAF1/CIP1 and P16 was found in glioma and normal brain tissues. CONCLUSION: The positive expression rate and coexpression rate of P21WAF1/CIP1 and P16 protein may reflex the malignant grade of glioma in some extent,and they can be as a sensitive index for the gliomas grading.

Key words: gliomas, P21WAF1/CIP1 protein, P16 protein, immunohistochemistry