国际肿瘤学杂志 ›› 2012, Vol. 39 ›› Issue (8): 665-668.

• 综述 • 上一篇    下一篇

P53的核外作用

侯庆生,张玉林,陈德喜,郭洪亮   

  1. 250117 济南,山东省医学科学院山东省肿瘤防治研究院外科四病区(侯庆生、郭洪亮);首都医科大学附属北京佑安医院感染科(张玉林);首都医科大学附属北京市肝病研究所(陈德喜)
  • 出版日期:2012-09-22 发布日期:2012-09-24
  • 通讯作者: 郭洪亮,E-mail: hongliangbb@ 163. com E-mail:hongliangbb@ 163.com
  • 基金资助:

    国家自然科学基金资助项目(30870853, 30910103915, 30770742)

Role of P53 outside the nucleus

 HOU  Qing-Sheng, ZHANG  Yu-Lin, CHEN  De-Xi, GUO  Hong-Liang   

  1. Department of General Surgery , Shandong Tumor Hospital of Province, Shandong Academy of Medical Sciences, Jinan 250117, China
  • Online:2012-09-22 Published:2012-09-24
  • Contact: GUO Hong-liang, E-mail: hongliangbb@ 163.com E-mail:hongliangbb@ 163.com

摘要: P53蛋白在抑制肿瘤形成方面发挥着至关重要的作用,当细胞出现DNA损伤、癌基因激活或者应激时P53蛋白就会在细胞中大量集聚。它作为一个核转录因子能够反式激活与细胞凋亡、细胞周期控制及一系列过程相关的基因。最新研究揭示核外P53有触发凋亡和抑制自噬的作用。这些作用有助于P53发挥其抑癌功能。新的有关P53 在核外功能的研究对进一步了解P53在肿瘤发生发展中的作用机制具有重要意义。

关键词: 肿瘤抑制蛋白质p53, 转录, 线粒体, 自噬

Abstract: P53 protein plays a crucial role in inhibition tumor development. It will accumulate in cells in the condition of DNA damage,oncogenes activation or stress. As a nuclear transcription factor,P53 can transactivate the genes which correlate with apoptosis, cell cycle control and other procedures. Current research reveals P53 outside the nucleus can induce apoptosis and inhibit autophagy which contributes to its function of tumor suppression. The study of the extranuclear function of P53 is beneficial to further understanding the mechanism of P53 in the genesis and  development of tumor.  

Key words: Tumor suppressor protein p53, Transcription, Mitochondria, Autophagy