Molecular and Cellular Biochemistry

, Volume 390, Issue 1–2, pp 115–121 | Cite as

Silencing heat shock protein 27 (HSP27) inhibits the proliferation and migration of vascular smooth muscle cells in vitro

  • Jie Huang
  • Liang-di Xie
  • Li Luo
  • Su-li Zheng
  • Hua-jun Wang
  • Chang-sheng Xu


The objective of this study was to examine the role of heat shock protein 27 (HSP27) in proliferation and migration of vascular smooth muscle cells (VSMCs). Three complementary DNA sequences targeting rat HSP27 gene were designed, synthesized, and subcloned into lentiviral vector. The interfering efficiency was detected by reverse transcriptase-polymerase chain reaction and Western blot. Methyl thiazolyl tetrazolium bromide assay was used for examining cell proliferation. F-actin polymerization was detected by FITC-Phalloidin staining using confocal microscopy. Modified Boyden chamber technique was used to assess VSMCs migration. The recombinant lentivirus containing RNAi targeting HSP27 gene significantly inhibited expression of HSP27 at both mRNA and protein levels. The interfering efficiencies of pNL-HSP27-EGFP-1, pNL-HSP27-EGFP-2, and pNL-HSP27-EGFP-3 were 71 %, 77 %, and 43 %, respectively. Reorganization of actin stimulated by PDGF-BB was markedly blocked by pretreatment with pNL-HSP27-EGFP-2. Proliferation and migration rates of VSMCs induced by PDGF-BB were inhibited by 30.8 % and 45.6 %, respectively, by pNL-HSP27-EGFP-2 (all P < 0.01). To conclude, these data indicate that HSP27 may regulate the proliferation, actin reorganization, and the migration of VSMCs. RNAi targeting at HSP27 may be a potential approach for inhibition of cell migration involved in pathogenesis of proliferative vascular diseases.


Heat shock protein 27(HSP27) RNA interference (RNAi) Vascular smooth muscle cells (VSMCs) Cytoskeleton Migration 



This work was supported by Grants from the Clinical Key Program of the Fujian Medical University (XK201107) and the Fujian Natural Science Foundation (2011J01160).


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Fujian Hypertension Research InstituteFirst Affiliated Hospital of Fujian Medical UniversityFuzhou China
  2. 2.Department of Cardiology of the ZhengzhouCentral Hospital Affiliated to Zhengzhou UniversityZhengzhouChina

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