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Medical Oncology

, Volume 28, Issue 4, pp 966–972 | Cite as

Inhibition of JNK1 expression decreases migration and invasion of mouse hepatocellular carcinoma cell line in vitro

  • Yu Hong Zhang
  • Shao Qing Wang
  • Cheng Rong Sun
  • Mei Wang
  • Bo Wang
  • Jian Wu TangEmail author
Original Paper

Abstract

c-Jun N-terminal kinase (JNK) is located in focal adhesion plaque (FAP). JNK is necessary to growth, morphogenesis, and differentiation of cells; especially JNK1 has a close relation with tumors. In this study, we silenced JNK1 by using short hairpin RNA (shRNA) and examined the effect on migration and invasion of mouse hepatocellular carcinoma (HCC) cell line Hca-F in vitro. Three shRNA expression vectors (JNK1shRNA-1, JNK1shRNA-2, and JNK1shRNA-3) were constructed and transfected to Hca-F cells stably. The most effective shRNA was selected by detecting the expression levels of mRNA and protein. Transwell assay was performed to detect the ability of migration and invasion of cells. A negative control sequence (JNK1shRNA control) and non-transfected normal Hca-F cells were treated as control groups. The “Results” showed that the expression vectors of pSilencer-JNK1shRNA were constructed and transfected to Hca-F cells successfully. The most effective shRNA was JNK1shRNA-2. The expressions of mRNA and protein of JNK1 in Hca-F cells after transfection of JNK1shRNA-2 were decreased significantly compared with the other groups (all, P < 0.01; all, P < 0.05). The ability of migration and invasion was decreased after down-regulation of JNK1 expression (all, P < 0.05). These results suggest that the inhibition of JNK1 expression can decrease ability of migration and invasion of mouse hepatocellular carcinoma cell line in vitro. JNK1 plays an important role in lymphatic metastasis of HCC. It may be a new target for gene therapy of lymphatic metastasis of HCC.

Keywords

JNK1 Short hairpin RNA RNA interference Hepatocellular carcinoma Lymphatic metastasis 

Abbreviations

JNK

c-Jun N-terminal kinase

HCC

Hepatocellular carcinoma

shRNA

Short hairpin RNA

RNAi

RNA interference

FAP

Focal adhesion plaque

MAPK

Mitogen-activated protein kinase

Pak1

P21-activated protein kinase 1

AP-1

Activated protein 1

Notes

Acknowledgments

The project was supported by The National Natural Science Foundation of China, Project Number is 30572098.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Yu Hong Zhang
    • 1
  • Shao Qing Wang
    • 2
  • Cheng Rong Sun
    • 2
  • Mei Wang
    • 2
  • Bo Wang
    • 2
  • Jian Wu Tang
    • 2
    Email author
  1. 1.Department of Diagnostic UltrasoundThe Second Affiliated Hospital of Dalian Medical UniversityDalian CityChina
  2. 2.Department of PathologyDalian Medical UniversityDalian CityChina

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