Chinese Journal of Tissue Engineering Research

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Construction of mouse CMKLR1 gene knock-down vascular smooth muscle cell lines mediated by lentivirus vector 

Xiong Wei1, Dong Shao-hong1, Zhang Jian2, Li Jiang-hua1, Wu Mei-shan1, Liao Bi-hong1, Pang Xin-li1,
Luo Lin-jie1   

  1. 1Department of Cardiology, Second Clinical Medical College of Jinan University/Shenzhen People’s Hospital, Shenzhen 518020, Guangdong Province, China; 2Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong Province, China
  • Online:2015-05-14 Published:2015-05-14
  • Contact: Dong Shao-hong, M.D., Chief physician, Department of Cardiology, Second Clinical Medical College of Jinan University/Shenzhen People’s Hospital, Shenzhen 518020, Guangdong Province, China
  • About author:Xiong Wei, M.D., Associate chief physician, Department of Cardiology, Second Clinical Medical College of Jinan University/Shenzhen People’s Hospital, Shenzhen 518020, Guangdong Province, China
  • Supported by:

    the Scientific Innovation Plan of Shenzhen, No. 201201022

Abstract:

BACKGROUND: Levels of chemerin are elevated in arteriosclerosis, indicating chemerin and its receptor (CMKLR1) may participate in the pathological process of arteriosclerosis.
OBJECTIVE: To establish the stable CMKLR1 gene knock-down mouse vascular smooth muscle cell lines.
METHODS: Three shRNA sequences targeting the coding region of mouse CMKLR1 mRNA were synthesized and employed to construct lentivirus recombinant vectors. The best pLVX-shRNA was picked up to package recombinant lentivirus in 293T cells, which were infected in cultured mouse vascular smooth muscle cells. The CMKLR1 mRNA level of vascular smooth muscle cells was verified by real-time PCR.
RESULTS AND CONCLUSION: The lentiviral vectors were successfully constructed, which was confirmed by DNA sequencing. The titer of lentivirus reached 8.7×106 TU/mL in the packaging cells, and pLVX-shRNA3 showed the most significant interfering effects on CMKLR1 gene (P < 0.001). The pLVX-shRNA3 was chosen to establish the stable CMKLR1 gene knock-down vascular smooth muscle cell lines, in which the expression of CMKLR1 mRNA was also significantly inhibited shown on real-time PCR (P < 0.001). We finally confirmed that the expression of CMKLR1 gene can be effectively silenced by lentivirus-mediated siRNA in mouse mouse vascular smooth muscle cells.
 

Key words: Myocytes, Smooth Muscle, Chemotactic Factors , RNA Interference

CLC Number: