Chinese Journal Of Clinical Anatomy ›› 2015, Vol. 33 ›› Issue (3): 305-310.doi: 10.13418/j.issn.1001-165x.2015.03.016

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Construction of CRMP4 lentiviral vector and its influence on neurite development

ZHANG Dan-dan 1,2,   TAN Ming-hui 1,2,   YE Yong-heng 1,  CHEN Ke-en 1,3,   LI Su-mei 1,   WU Feng-ming 1,   GUO Guo-qing 1,2,4   

  1. 1. Department of Anatomy, Medical College, Jinan University, Guangzhou 510632, China; 2. Mobile Post-doctoral Stations of integration of Traditional and Western medicine, Medical College,Jinan University, Guangzhou 510632,China; 3. Department of Neurosurgery, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China;  4. Department of Pathophysiology,Jinan University, Guangzhou 510632, China
  • Received:2014-10-17 Online:2015-05-25 Published:2015-07-24

Abstract:

Objective   This study aimed to investigate the influence of CRMP4 on the neurite growth in the hippocampal neuron.   Methods   To obtain the CRMP4 gene fragments by PCR amplification technology, then connect the gene to the viral vector. After PCR, enzyme restriction digestion and sequencing verification, the plasmids was packaged by transferring 293T cells to prepare Lentivirus Vector. The CRMP4 lentivirus vector was used to transfect hippocampal neurons cultured in vitro and neurite length of neurons was analyzed.   Results   The sequence of CRMP4 amplified by PCR was right and the gene fragment was inserted into lentivirus vector. The concentration of the virus was at the titer of 1.0×107~1.0×108 TU/ml. In the control cells, GFP was expressed in the neurites and cell bodies. Hippocampal neurons have two types of highly polarized cell processes, axons and dendrites with the development. When infected by CRMP4 Lentivirus Vector, the neurite outgrowth was obvious, and a lot of dendrites arose from cell bodies. The results of neurite lengths showed that over-expression CRMP4, the neutrite outgrowth was increased significantly and a lot of dendrites werefound. In cells without CRMP4 expression, the neutrites were few, and the length of neutritesdiminishedsignificantly when compared with CRMP4 over-expressing cells (P<0.05).   Conclusion   The lentivirus vector of CRMP4 was successfully constructed and overexpression of CRMP4 is beneficial to neurite development including neurite outgrowth and formation of branches.

Key words: CRMP4, Lentivirus, Hippocampus, Neurons, Neurite