›› 2011, Vol. 38 ›› Issue (1): 54-57.

• 生理生化 • 上一篇    下一篇

朊蛋白生理功能的研究进展

谭荣荣1,刘爱林2,赵德明1   

  1. (1.中国农业大学国家海绵状脑病实验室,北京 100193; 2.河北省邯郸市动物疫病预防控制中心,河北邯郸 056005)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-01-01 发布日期:2011-01-01
  • 通讯作者: 赵德明

The Research Progress of Physiologic Function of Prion Protein

TAN Rong-rong1, LIU Ai-lin2, ZHAO De-ming1   

  1. (1.Laboratory of National Spongiform Encephalopathy, China Agricultural University,Beijing 100193, China; 2.Animal Disease Control Center of Handan City,Hebei Province,Handan 056005,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-01 Published:2011-01-01
  • Contact: ZHAO De-ming

摘要: 朊蛋白(prion protein,PrPC)作为朊病的主要相关致病因子而受到广泛关注,虽然PrPC在疾病过程中的作用已有很多了解,但关于PrPC的正常生理功能还不是很清楚。就目前的研究而言,PrPC存在细胞核亚型和细胞质亚型两种形式,可与相应的配体及铜离子作用,并且通过细胞内吞或内陷方式被细胞膜获取;主要生理功能表现为保护神经系统,协助细胞的凋亡和分化、黏附,以及参与信号转导等。因此,文章对朊蛋白的生理功能作一总结,为朊病的治疗和朊蛋白的进一步研究提供了理论基础。

关键词: 朊蛋白; PrPC; 生理功能

Abstract: Prion protein(PrPC)has received great attention as the major associated pathogenic agent, although a great deal has been known about the role of PrPC in the process of disease, the normal function of PrPC still remain elusive. In the present study, a variety of functions have been proposed for mammalian PrPC. Such as nucleocytoplasmic isoforms of PrPC, interactions with ligand and Cu2+, and can be acquired by plasm membrane using endocytosis and internalization. PrPC has multiple physiological functions, including protection of nerve system,assitance of cell death, differentiation and adhesion, and transduction of cell signaling. Thus, overview of the physiological function of PrPC will contribute to the cure of prion disease and further research of prion protein.

Key words: prion protein; PrPC; physiologic function

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