High-mobility group box 1-mediated matrix metalloproteinase-9 expression in non-small cell lung cancer contributes to tumor cell invasiveness

Po Len Liu, Jong Rung Tsai, Jhi Jhu Hwang, Shah Hwa Chou, Yu Jen Cheng, Feng Yen Lin, Yuh Lien Chen, Chun Ying Hung, Wen Chi Chen, Yung Hsiang Chen, Inn Wen Chong

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

High-mobility group box 1 (HMGB1) is a versatile protein with intranuclear and extracellular functions. It is involved in invasion and metastasis in various human malignancies. However, the role of HMGB1 in non-small cell lung cancer (NSCLC) is unclear. We hypothesized that HMGB1 expression is a determinant of cellular invasiveness and metastasis in lung cancer. We examined HMGB1 expression in 48 NSCLC specimens by quantitative real-time PCR. High HMGB1 expression was significantly associated with clinically advanced stages (stage III-IV) (P <0.05) and was correlated to expression of matrix metalloproteinase-9 (MMP-9) (P <0.05). Patients with high levels of HMGB1 expression had poorer clinical prognosis. The expression level of MMP-9 and metastatic ability in vitro were significantly higher in an HMGB1-overexpressing human NSCLC cell lines (A549 and H23). The treatment with HMGB1 small interfering RNA reduced MMP-9 expression and the cellular metastatic ability in NSCLC cells. We also demonstrated that phosphoinositide 3-kinase/Akt and NF-κB-related pathways contributed to the HMGB1-induced MMP-9 expression and cellular metastatic ability.

Original languageEnglish
Pages (from-to)530-538
Number of pages9
JournalAmerican Journal of Respiratory Cell and Molecular Biology
Volume43
Issue number5
DOIs
Publication statusPublished - Nov 1 2010

Fingerprint

Matrix Metalloproteinase 9
Non-Small Cell Lung Carcinoma
Tumors
Cells
Neoplasms
Neoplasm Metastasis
1-Phosphatidylinositol 4-Kinase
Phosphatidylinositols
Small Interfering RNA
Real-Time Polymerase Chain Reaction
Lung Neoplasms
Phosphotransferases
Proteins
Therapeutics

Keywords

  • HMGB1
  • Metastasis
  • MMP-9
  • Non-small cell lung cancer
  • Prognosis

ASJC Scopus subject areas

  • Cell Biology
  • Pulmonary and Respiratory Medicine
  • Molecular Biology
  • Clinical Biochemistry

Cite this

High-mobility group box 1-mediated matrix metalloproteinase-9 expression in non-small cell lung cancer contributes to tumor cell invasiveness. / Liu, Po Len; Tsai, Jong Rung; Hwang, Jhi Jhu; Chou, Shah Hwa; Cheng, Yu Jen; Lin, Feng Yen; Chen, Yuh Lien; Hung, Chun Ying; Chen, Wen Chi; Chen, Yung Hsiang; Chong, Inn Wen.

In: American Journal of Respiratory Cell and Molecular Biology, Vol. 43, No. 5, 01.11.2010, p. 530-538.

Research output: Contribution to journalArticle

Liu, Po Len ; Tsai, Jong Rung ; Hwang, Jhi Jhu ; Chou, Shah Hwa ; Cheng, Yu Jen ; Lin, Feng Yen ; Chen, Yuh Lien ; Hung, Chun Ying ; Chen, Wen Chi ; Chen, Yung Hsiang ; Chong, Inn Wen. / High-mobility group box 1-mediated matrix metalloproteinase-9 expression in non-small cell lung cancer contributes to tumor cell invasiveness. In: American Journal of Respiratory Cell and Molecular Biology. 2010 ; Vol. 43, No. 5. pp. 530-538.
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