转录因子EB和自噬在神经退行性疾病发病机制中的作用
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徐州医科大学附属连云港医院,徐州医科大学附属连云港市东方医院,徐州医科大学附属连云港医院,徐州医科大学附属连云港医院,徐州医科大学附属连云港医院,徐州医科大学附属连云港医院,徐州医科大学附属连云港医院,徐州医科大学附属连云港医院

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中国博士后科学基金第55批面上资助(1630),江苏省卫生厅课题(H201361)和2013年度江苏省博士后科研资助计划(1301174C)资助


TFEB and Autophagy Play a Key Role in The Pathogenesis of Neurodegenerative Diseases
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Affiliated Lianyungang Hospital of Xuzhou Medical University,Xuzhou Medical University Affiliated Lianyungang Oriental Hospital,Affiliated Lianyungang Hospital of Xuzhou Medical University,Affiliated Lianyungang Hospital of Xuzhou Medical University,Affiliated Lianyungang Hospital of Xuzhou Medical University,Affiliated Lianyungang Hospital of Xuzhou Medical University,Affiliated Lianyungang Hospital of Xuzhou Medical University,Affiliated Lianyungang Hospital of Xuzhou Medical University

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This work was supported by grants from China’s Postdoctoral Science Fund 55th grant(1630), Department of Health of Jiangsu Province(H201361) and 2013 Jiangsu Provincial Postdoctoral Research Funding Program(1301174C)

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    摘要:

    自噬广泛存在于真核细胞中,与机体生理和病理过程的发生发展密切联系.自噬主要参与长寿蛋白质的降解,以清除受损或多余的蛋白质和细胞器,是细胞自我降解的过程之一.自噬通常被分为三类:大自噬、分子伴侣介导的自噬和小自噬.自噬溶酶体途径(ALP)功能障碍导致蛋白质聚集,从而产生异常蛋白质和无效细胞器的积累,这些特征是阿尔茨海默病(Alzheimer disease,AD)、帕金森病(Parkinson disease,PD)和亨廷顿病等神经退行性疾病(Huntington disease,HD)的标志.自噬的过程受一系列复杂的信号分子的调控,其中一个主要调节因子是转录因子EB(TFEB),是转录因子MiT家族的成员之一.研究表明,TFEB可通过积极调节自噬体形成和自噬体-溶酶体融合参与自噬,此外它还通过溶酶体胞吐作用提高细胞内的清除作用.因此作为自噬溶酶体生物发生的主要调节因子,TFEB已被广泛证明激活后可以从病理方面改善这些疾病.我们回顾分析ALP和TFEB的调节及其对神经退行性疾病的影响,同时展望ALP和TFEB在疾病病理中的复杂作用及其治疗意义.

    Abstract:

    Autophagy is widely found in eukaryotic cells, and closely related to the physiological and pathological processes in the body. Autophagy-lysosomal pathway is a process of self-degradation of cells, mainly involved in the degradation of long-lived proteins to remove damaged or excessive protein and organelles. Autophagy is usually categorized into three groups: macroautophagy, chaperone-mediated autophagy, and microautophagy.Deficits in the ALP lead to protein aggregation, resulting in the accumulation of abnormal proteins and ineffective organelles, which are hallmarks of Alzheimer disease (AD), Parkinson disease (PD), Huntington disease (HD) and so on. The process of autophagy is regulated by a series of complex signaling molecules. One of them is TFEB, a member of the MiT family of transcription factors. Studies have shown that transcription factor EB (TFEB) can coordinate autophagy through positively regulating autophagosome formation and autophagosome- lysosome fusion. In addition, it enhances cellular clearance through lysosomal exocytosis. Therefore, as a major regulator of autophagosomal biogenesis, TFEB has been a key factor in the pathogenesis of related diseases. We reviewed the regulation of ALP and TFEB and their effects on neurodegenerative diseases, and looked forward to the complex effects of ALP and TFEB on pathology and their therapeutic significance.

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董双双,王翔宇,明敬峰,孙振杰,李秀明,王娜,张永进,蔡增林.转录因子EB和自噬在神经退行性疾病发病机制中的作用[J].生物化学与生物物理进展,2018,45(3):305-313

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历史
  • 收稿日期:2017-05-22
  • 最后修改日期:2017-12-12
  • 接受日期:2017-12-26
  • 在线发布日期: 2018-03-21
  • 出版日期: 2018-03-20