Journal of Capital Medical University ›› 2013, Vol. 34 ›› Issue (1): 110-114.doi: 10.3969/j.issn.1006-7795.2013.01.021

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Differential expressions of α-synuclein and glucocerebrosidase in different brain regions of cynomolgus monkeys

MI Na, LIU Guangwei, LI Xin, LI Yaohua, YU Shun   

  1. Department of Neurobiology, Xuanwu Hospital, Capital Medical University, Laboratory of Molecular Diagnosis, Beijing Geriatric Medical Research Center, Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing 100053, China
  • Received:2012-05-25 Online:2013-02-21 Published:2013-02-25
  • Supported by:

    This study was supported by National Basic Research and Development Program (973 Program) of China (2011CB504101), National Natural Science Foundation of China (81071014), National High Technology Research and Development Program of China (863 Program) (2006AA02A408), Natural Science Foundation of Beijing (7102076), Funding Project for Academic Human Resources Development in the Institutions of Higher Learning under the Jurisdiction of Beijing Municipality (PHR200907113).

Abstract:

Objective To investigate the expressions of α-synuclein (α-Syn) and glucocerebrosidase (GBA) in different brain regions of cynomolgus monkeys. Methods Western blotting and immunohistochemical methods were applied to measure the levels of α-Syn and GBA in striatum and cerebellum of cynomolgus monkeys. Enzyme activity assay was used to determine GBA activity. Double immunofluorescent labeling was used to examine the co-localization of α-Syn and GBA. Results α-Syn and GBA were colocalized in neuronal cytoplasm and nerve terminals. α-Syn and GBA were expressed in both the striatum and cerebellum. However, the level of α-Syn in striatum was higher than that in cerebellum while the level of GBA in striatum was less than that in cerebellum. The activity of GBA was also lower in striatum than in cerebellum. Conclusion The expression levels of α-Syn and GBA are different in different brain regions. The level of α-Syn is negatively correlated with that of GBA.

Key words: α-synuclein, glucocerebrosidase, cynomolgus monkeys

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