Potential role of Notch1 signaling pathway in laryngeal squamous cell carcinoma cell line Hep-2 involving proliferation inhibition, cell cycle arrest, cell apoptosis, and cell migration

  • Authors:
    • Jing Jiao
    • Zhaobing Qin
    • Sha Li
    • Hongtao Liu
    • Zhaoming Lu
  • View Affiliations

  • Published online on: October 1, 2009     https://doi.org/10.3892/or_00000504
  • Pages: 815-823
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Abstract

Head and neck cancer is the sixth most common cancer worldwide and laryngeal cancer represents the largest subgroup. However, the molecular mechanism underlying its malignant behavior and progression is not clarified. Accumulating evidence has shown that Notch1 signaling pathway plays a central role in carcinogenesis, but its potential role in regulating the development of laryngeal carcinoma, has not been characterized. Here, we identified that Notch1 signaling pathway was activated in laryngeal carcinoma accompanied with up-regulation of Notch1 and Hes1 expression. Overexpression of Notch1 in laryngeal carcinoma cell line Hep-2 led to suppression of tumor cellular proliferation and arrested cell cycle in the G0/G1 phase and induced cell apoptosis, which were coupled with the down-regulation of cyclin D1, cyclin E, cdk2 and bcl-2 and up-regulation of caspase-3, caspase-9 and p53. Most importantly, up-regulation of Notch1 expression also reduced the migration of Hep-2 cells, which was closely associated with down-regulation of MMP-2 and MMP-9. The finding may lay a foundation for further investigations into the Notch1 signaling pathway as a potential target for laryngeal carcinoma.

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October 2009
Volume 22 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Jiao J, Qin Z, Li S, Liu H and Lu Z: Potential role of Notch1 signaling pathway in laryngeal squamous cell carcinoma cell line Hep-2 involving proliferation inhibition, cell cycle arrest, cell apoptosis, and cell migration. Oncol Rep 22: 815-823, 2009
APA
Jiao, J., Qin, Z., Li, S., Liu, H., & Lu, Z. (2009). Potential role of Notch1 signaling pathway in laryngeal squamous cell carcinoma cell line Hep-2 involving proliferation inhibition, cell cycle arrest, cell apoptosis, and cell migration. Oncology Reports, 22, 815-823. https://doi.org/10.3892/or_00000504
MLA
Jiao, J., Qin, Z., Li, S., Liu, H., Lu, Z."Potential role of Notch1 signaling pathway in laryngeal squamous cell carcinoma cell line Hep-2 involving proliferation inhibition, cell cycle arrest, cell apoptosis, and cell migration". Oncology Reports 22.4 (2009): 815-823.
Chicago
Jiao, J., Qin, Z., Li, S., Liu, H., Lu, Z."Potential role of Notch1 signaling pathway in laryngeal squamous cell carcinoma cell line Hep-2 involving proliferation inhibition, cell cycle arrest, cell apoptosis, and cell migration". Oncology Reports 22, no. 4 (2009): 815-823. https://doi.org/10.3892/or_00000504