Molecules and Cells

, Volume 29, Issue 2, pp 185–194

Anti-cancer effects of celecoxib in head and neck carcinoma

  • Young-Youn Kim
  • Eun-Jin Lee
  • Yu-Kyoung Kim
  • Soung-Min Kim
  • Ju-Yong Park
  • Hoon Myoung
  • Myung-Jin Kim
Article

Abstract

Although many studies highlighted cyclooxygenase2 (COX2) inhibition as a promising therapeutic strategy for cancer, more evidence is needed for clinical application. The purpose of this study was to investigate the feasibility of COX2 inhibition as a strategic treatment modality for head and neck carcinoma (HNC). We tested COX2 inhibitor, celecoxib in six types of HNC cells and analyzed the expression changes in proteins related to angiogenesis and apoptosis in vitro. We also evaluated proliferation, gelatinolysis and in vitro invasion. We used a hamster carcinogenesis model and a mouse tumorigenesis model for the in vivo evaluation of COX2 inhibition. We performed immunohistochemistry to assess changes in the expression of COX2, survivin and angiogenesis. Celecoxib administration caused decreases in the expressions of COX2, VEGF and survivin in vitro. Proliferation, in vitro invasion and gelatinolytic activity were reduced in HNC cell lines, but the effect was inconsistent across lines. COX2 inhibition retarded oral carcinogenesis from an early carcinogenic stage with increased apoptosis and decreased survivin expression. COX2 inhibition did not inhibit tumor growth, even with the COX2 downregulation and decrease in neovascularization. We conclude that COX2 inhibition has a chemopreventive effect, but its application as a treatment of HNC in a clinical setting still requires further research to overcome its limited anti-cancer effects.

Keywords

angiogenesis celecoxib cyclooxygenase2 (COX2) head and neck carcinoma (HNC) invasion oral squamous cell carcinoma 

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Copyright information

© The Korean Society for Molecular and Cellular Biology and Springer Netherlands 2010

Authors and Affiliations

  • Young-Youn Kim
    • 1
  • Eun-Jin Lee
    • 1
  • Yu-Kyoung Kim
    • 2
  • Soung-Min Kim
    • 1
  • Ju-Yong Park
    • 3
  • Hoon Myoung
    • 1
  • Myung-Jin Kim
    • 1
  1. 1.Department of Oral and Maxillofacial Surgery, School of DentistrySeoul National UniversitySeoulKorea
  2. 2.Dental Research InstituteSeoul National UniversitySeoulKorea
  3. 3.Department of Oral OncologyNational Cancer CenterGoyangKorea

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