PKCζ, MMP‑2 and MMP‑9 expression in lung adenocarcinoma and association with a metastatic phenotype

  • Authors:
    • Xiaoshan Cai
    • Hongguang Zhu
    • Ying Li
  • View Affiliations

  • Published online on: September 26, 2017     https://doi.org/10.3892/mmr.2017.7634
  • Pages:8301-8306
0

Abstract

The aim of the present study was to investigate protein kinase C ζ type (PKCζ), matrix metalloproteinase (MMP)‑2 and MMP‑9 expression in lung adenocarcinoma and to define their association with in vitro invasion and metastatic capacity. PKCζ, MMP‑2 and MMP‑9 expression was assessed by immunohistochemistry in 110 cases of lung adenocarcinoma. PKCζ small interfering (si)RNA was transfected into A549 cells, and western blotting was used to confirm PKCζ‑knockdown in transfected cells and to measure MMP‑2 and MMP‑9 levels. A Transwell invasion assay was used to detect in vitro invasive capacity. The rates of positive PKCζ, MMP‑2 and MMP‑9 staining in lung adenocarcinoma tissues were 52.73, 55.45 and 61.82%, respectively. PKCζ expression was increased in malignant tissues compared with adjacent normal lung tissues and was associated with lymph node metastasis (P<0.05), although it was not associated with any other clinicopathological parameters, including sex, age, tumor size, smoking status or distant metastases (all P>0.05). PKCζ, MMP‑2 and MMP‑9 expression was markedly decreased in siPKCζ‑treated A549 cells, which exhibited a significantly decreased invasive capacity in the Transwell invasion assay (P<0.05). In conclusion, PKCζ promoted lung adenocarcinoma invasion and metastasis, and its expression was associated with MMP‑2 and MMP‑9 expression. PKCζ may be a potential target for gene therapy in lung adenocarcinoma.

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December 2017
Volume 16 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

2016 Impact Factor: 1.692
Ranked #19/128 Medicine Research and Experimental
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APA
Cai, X., Zhu, H., & Li, Y. (2017). PKCζ, MMP‑2 and MMP‑9 expression in lung adenocarcinoma and association with a metastatic phenotype. Molecular Medicine Reports, 16, 8301-8306. https://doi.org/10.3892/mmr.2017.7634
MLA
Cai, X., Zhu, H., Li, Y."PKCζ, MMP‑2 and MMP‑9 expression in lung adenocarcinoma and association with a metastatic phenotype". Molecular Medicine Reports 16.6 (2017): 8301-8306.
Chicago
Cai, X., Zhu, H., Li, Y."PKCζ, MMP‑2 and MMP‑9 expression in lung adenocarcinoma and association with a metastatic phenotype". Molecular Medicine Reports 16, no. 6 (2017): 8301-8306. https://doi.org/10.3892/mmr.2017.7634