SIRT4基因表达与骨肉瘤预后因素相关性研究

目的 研究信息沉默因子4(SIRT4)基因在骨肉瘤组织中的表达及其临床意义。方法 本研究对106例骨肉瘤和36例配对的瘤旁正常组织进行SIRT4免疫组织化学染色，并进行结果评分，综合患者临床病理特征进行统计分析。结果 相对于瘤旁正常组织，SIRT4蛋白在骨肉瘤组织中显著降低，低表达SIRT4骨肉瘤患者与较短的生存期显著相关。单变量和多变量Cox比例风险模型分析显示SIRT4表达与骨肉瘤预后生存显著相关。结论 SIRT4基因可能成为判断骨肉瘤预后生存的生物学指标。

The study on SIRT4 gene expression and prognostic factors in osteosarcoma

Objective To explore SIRT4 gene expression in tumor tissue and investigate the clinicol-pathological features in osteosarcoma .Methods In this study ,SIRT4 protein expression was detected in 106 os-teosarcoma tissues and 36 paired neighboring non -tumorous tissues by immunohistochemistry and determined the correlation between the SIRT 4 expression and the clinicopathological features .Results SIRT4 protein was dra-matically decreased in osteosarcoma cells compared with neighboring non -tumorous bone cells .The low expres-sion of SIRT4 was notably associated with a poor overall survival and disease -free survival in osteosarcoma pa-tients.By using univariate and multivariate analyses ,we confirmed that the increased SIRT 4 expression was an in-dependent factor in predicting better prognosis for patients .Conclu is on SIRT4 expression might be an inde-pendent biomarker for prognostic evaluation of osteosarcoma .