Snail regulates Nanog status during the epithelial-mesenchymal transition via the Smad1/Akt/GSK3β signaling pathway in non-small-cell lung cancer

Chen Wei Liu, Ching Hao Li, Yi Jen Peng, Yu Wen Cheng, Huei Wen Chen, Po Lin Liao, Jaw Jou Kang, Mao Hsiung Yeng

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The epithelial-mesenchymal transition (EMT), a crucial step in cancer metastasis, is important in transformed cancer cells with stem cell-like properties. In this study, we established a Snail-overexpressing cell model for non-small-cell lung cancer (NSCLC) and investigated its underlying mechanism. We also identified the downstream molecular signaling pathway that contributes to the role of Snail in regulating Nanog expression. Our data shows that high levels of Snail expression correlate with metastasis and high levels of Nanog expression in NSCLC. NSCLC cells expressing Snail are characterized by active EMT characteristics and exhibit an increased ability to migrate, chemoresistance, sphere formation, and stem cell-like properties. We also investigated the signals required for Snail-mediated Nanog expression. Our data demonstrate that LY294002, SB431542, LDN193189, and Noggin pretreatment inhibit Snail-induced Nanog expression during EMT. This study shows a significant correlation between Snail expression and phosphorylation of Smad1, Akt, and GSK3β. In addition, pretreatment with SB431542, LDN193189, or Noggin prevented Snail-induced Smad1 and Akt hyperactivation and reactivated GSK3β. Moreover, LY294002 pretreatment prevented Akt hyperactivation and reactivated GSK3β without altering Smad1 activation. These findings provide a novel mechanistic insight into the important role of Snail in NSCLC during EMT and indicate potentially useful therapeutic targets for NSCLC.

Original languageEnglish
Pages (from-to)3880-3894
Number of pages15
JournalOncotarget
Volume5
Issue number11
Publication statusPublished - 2014

Fingerprint

Epithelial-Mesenchymal Transition
Non-Small Cell Lung Carcinoma
2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one
Snails
Stem Cells
Neoplasm Metastasis
Neoplasms
Phosphorylation

Keywords

  • Akt
  • Cancer stem cell
  • Epithelial-mesenchymal transition
  • Nanog
  • Noggin
  • Non-small-cell lung cancer
  • Smad
  • Snail

ASJC Scopus subject areas

  • Oncology
  • Medicine(all)

Cite this

Snail regulates Nanog status during the epithelial-mesenchymal transition via the Smad1/Akt/GSK3β signaling pathway in non-small-cell lung cancer. / Liu, Chen Wei; Li, Ching Hao; Peng, Yi Jen; Cheng, Yu Wen; Chen, Huei Wen; Liao, Po Lin; Kang, Jaw Jou; Yeng, Mao Hsiung.

In: Oncotarget, Vol. 5, No. 11, 2014, p. 3880-3894.

Research output: Contribution to journalArticle

Liu, Chen Wei ; Li, Ching Hao ; Peng, Yi Jen ; Cheng, Yu Wen ; Chen, Huei Wen ; Liao, Po Lin ; Kang, Jaw Jou ; Yeng, Mao Hsiung. / Snail regulates Nanog status during the epithelial-mesenchymal transition via the Smad1/Akt/GSK3β signaling pathway in non-small-cell lung cancer. In: Oncotarget. 2014 ; Vol. 5, No. 11. pp. 3880-3894.
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