骨肉瘤p53、PTEN的表达与其3年存活之间的相关研究

目的　研究骨肉瘤p5 3、PTEN表达与其 3年存活之间的关系。方法　运用免疫组化方法检测 5 3例骨肉瘤病理标本p5 3、PTEN蛋白表达情况 ,并与术后 3年随访结果对照分析。结果　运用 χ2 检验进行统计学分析发现 ,p5 3阴性表达时 ,PTEN表达的 2种形式与随访结果有显著性差异 (χ2 =3 5 .95 ,Ρ <0 .0 0 5 ) ,p5 3阳性表达时 ,PTEN表达的 2种形式与随访结果无统计学差异 (χ2 =0 .175 ,Ρ =0 .997)。p5 3及PTEN的表达与随访结果的两因素logistic回归分析 ,只有PTEN表达进入回归模型 ,p5 3没有进入模型 ,PTEN表达与随访结果呈正相关关系。结论　p5 3、PTEN骨肉瘤中的表达与其对预后判定的作用上PTEN较p5 3作用更大

The Relationship with the Protein Expression of p53,PTEN and the Three- year Survival Ratios in Osteosarcoma Patients

Objective To explore the protein expression of p53 and PTEN in osteosarcoma and the relationship between them and the three-year survival ratios of osteosarcoma patients.Methods The protein expression of p53 and PTEN was detected using immunohistochemical methods in 53 cases of osteosarcoma proved by surgery and pathology. Results There was significant difference between the both kind of relationship with the protein expression of PTEN and the three-year survival ratios of osteosarcoma patients who had negative expression of p53. There was no significant difference between the both kind of relationship with the protein expression of PTEN and the three-year survival ratios of osteosarcoma patients who had positive expression of p53. PTEN expression,which was analysed by logistic regression, was entered the regression model ,but p53 expression was not. Conclusion PTEN expression is more important than p53 expression in predicting the prognosis of the patient with osteosarcoma.