《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2018, Vol. 24 ›› Issue (1): 66-70.doi: 10.3969/j.issn.1006-9771.2018.01.012

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Effect of Interleukin-1β Silence on Expression of Vimentin in Rats with Spinal Cord Contusion

HU Xi, NIU Ying-jie, HUANG Yuan, LI Ying-jie, ZENG Xi, XIANG Yang, ZHANG Xiao, LIANG Nan   

  1. 1. a. Clinical Medicine College b. Department of Inspection c. Experiment Technology Center, Preclinical Medicine of Chengdu Medical College, Chengdu, Sichuan 610500, China
  • Received:2017-07-20 Revised:2017-08-29 Published:2018-01-25 Online:2018-01-31
  • Contact: LIANG Nan.E-mail:33722677@qq.com
  • Supported by:
    National Students' Innovation and Entrepreneurship Training Program (No. 201613705028) and Sichuan Province Students' Innovation and Entrepreneurship Training Program (No. 201613705059)

Abstract: Objective To observe the expression of vimentin (Vim) after silence of interleukin-1β (IL-1β) in rats with spinal cord contusion (SCC).Methods The model of SCC was established in 30 Sprague-Dawley rats with Allen's method. The rats were randomized into vector group (n=15) and silence group (n=15), which were injected blank lentivirus vector and vector of IL-1β siRNA, respectively; and divided in three, seven and 28 days subgroups. The relationship between IL-1β and Vim was predicted with GeneMANIA bioinformatics. The expression of Vim protein and mRNA in spinal cord was detected with immunohistochemistry and real-time quantitative polymerase chain reaction.Results GeneMANIA bioinformatic analysis indicated that there was some direct and indirect relationship between IL-1β and Vim. The Vim protein and mRNA expressed in the spinal cord, and was less in the silence group than in the vector group (t>2.875, P<0.05). Conclusion Silence of IL-1β can inhibit the expression of Vim in SCC rats, which may promote the recovery of spinal cord function.

Key words: spinal cord contusion, interleukin-1β, vimentin, siRNA, rats

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