中国临床解剖学杂志 ›› 2016, Vol. 34 ›› Issue (1): 68-72.doi: 10.13418/j.issn.1001-165x.2016.01.018

• 实验研究 • 上一篇    下一篇

TAp73 和Beclin1在人骨肉瘤中表达及其临床意义

许遵营1, 吕海2, 史本超1, 胡争波1, 蔡琛1, 杨潇1, 靳安民1, 严鑫平1   

  1. 1.南方医科大学珠江医院骨科中心,  广州   510282; 2.南方医科大学第三附属医院脊柱外科,  广州   510507
  • 收稿日期:2015-10-30 出版日期:2016-01-25 发布日期:2016-01-28
  • 通讯作者: 靳安民,主任医师,博士生导师,E-mail:jinanmin000@ 163.com
  • 作者简介:许遵营(1989-),男,广东汕头人,硕士,主要从事骨肿瘤方面的研究,Tel: 020-62782571,E-mail:xuzunying@163.com
  • 基金资助:

    国家自然科学基金(81470121)

Expression of TAp73 and Beclin1 in human osteosarcoma and their clinical significance

XU Zun-Ying1, LU Hai2, SHI Ben-Chao1, HU Zheng-bo1, CAI Chen1 , YANG Xiao1, JIN An-min1, YAN Xin-ping1   

  1. 1. Department of Orthopedics,Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China;
    2.Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510507, China
  • Received:2015-10-30 Online:2016-01-25 Published:2016-01-28

摘要:

目的 检测抑癌基因TAp73与自噬相关因子Beclin1在人骨肉瘤中的表达,探讨TAp73与肿瘤自噬的关系。  方法 采用免疫组织化学SP法检测TAp73、Beclin1在48例骨肉瘤患者的瘤体组织中的表达,结合患者的临床资料进行相关性分析。  结果    TAp73在人骨肉瘤组织中的阳性率54.17%,Beclin1的阳性率为62.50%,TAp73阳性表达,其Beclin1表达程度较高(Z=-2.146,P=0.032)。在人骨肉瘤中TAp73的表达程度与Beclin1的表达程度呈正相关(r=0.470,P=0.001)。TAp73、Beclin1阳性表达的患者总体生存率优于阴性表达(80.8% vs 50.0%,P=0.000; 80.0% vs 44.4%,P=0.001)。TAp73、Beclin1不同表达程度与患者的生存时间呈正相关(r=0.696,P=0.00;r=0.372,P=0.009)。  结论 在人骨肉瘤中TAp73可能与骨肉瘤中Beclin1依赖的肿瘤自噬活性上调有关。检测TAp73和Beclin1在人骨肉瘤中的表达水平有助于患者临床预后判断。

关键词: 骨肉瘤, 自噬, TAp73, Beclin1, 预后

Abstract:

Objective To investigate the expression of TAp73 and Beclin1 in human osteosarcoma and their relationship. Methods The immunohistochemical SP method was used to detect the expressions of the TAp73 and Beclin1 proteins in 48 osteosarcoma patients’ tumor tissues, and the correlations of TAp73 and Beclin1 were analyzed with their clinical data. Results The positive rate of TAp73 was 54.17%, and the positive rate of Beclin1 was 60.42%. TAp73 positive expression, and the expression of Beclin1 were higher (Z=-2.146, P=0.032). The expression level of TAp73 was positively correlated with the expression of Beclin1 (P=0.001). The overall survival rate of patients with TAp73 and Beclin1 positive expression was better than that of negative expression (80.8% vs 50.0%, P=0.000, 80.0% vs 44.4%, P=0.001). The expression level of TAp73 and Beclin1 was positively correlated with the survival time of patients(r=0.696,P=0.00;r=0.372,P=0.009). Conclusion In human osteosarcoma, TAp73 may be related to the upregulation of Beclin1 dependent tumor autophagy activity.  And to detect the expression of TAp73 and Beclin1 is helpful for the assessment of patients’ prognosis.

Key words: Osteosarcoma, Autophagy, TAp73, Beclin1, Prognosis