摘要
背景与目的KAI1/CD82是近年来发现的肿瘤转移抑制基因,它的失活与某些肿瘤的进展和浸润有关。本研究旨在通过检测KAI1/CD82蛋白在神经母细胞瘤中的表达,探讨其与神经母细胞瘤临床病理特征和预后的关系。方法用免疫组化EnVision法检测90例神经母细胞瘤瘤组织中KAI1/CD82蛋白的表达,结合临床资料与随访资料进行统计学分析。结果39.3%(11/28)节细胞神经母细胞瘤KAI1/CD82呈阳性表达,14.5%(9/62)神经母细胞瘤KAI1/CD82呈阳性表达(P=0.014)。KAI1/CD82的表达与神经母细胞瘤的分化程度呈显著性正相关,且KAI1/CD82的表达与临床分期呈显著性负相关(P=0.003)。结论KAI1/CD82表达的改变是神经母细胞瘤发生的早期事件,其表达下调是神经母细胞瘤分化和转移的一个潜在标志。此标记物可能作为临床评估预后的综合指标之一。
BACKGROUND & OBJECTIVE: KAI1/CD82 was recently detected as a tumor metastasis suppressor gene. Its silencing contributes to progression and infiltration of some tumors. Our study was designed to investigate the expression of KAI1/CD82 in neuroblastoma, and explore its correlation to clinicopathologic characteristics and prognosis of patients with neuroblastoma. METHODS: The EnVisionTM immunohistochemistry was used to detect the expression of KAI1/CD82 in 90 specimens of neuroblastoma (28 specimens of ganglioneuroblastoma and 62 specimens of neuroblastoma). Clinical data and follow-up data of the 90 patients were analyzed. RESULTS: Positive rate of KAI1/CD82 was significantly higher in ganglioneuroblastoma than in neuroblastoma (39.3% vs. 14.5%, P=0.014). Its expression was negatively correlated to clinical stage of neuroblastoma (P=0.003). CONCLUSIONS: The change of KAI1/CD82 expression is an early event in tumorigenesis of neuroblastoma. Its down-regulation may be considered as a potential indicator to judge the differentiation and metastasis of neuroblastoma, which can serve as one of the combined indexes to clinical assessment of prognosis.
出处
《癌症》
SCIE
CAS
CSCD
北大核心
2005年第7期885-889,共5页
Chinese Journal of Cancer
