title: [Nimesulide induced apoptosis and inhibited metastasis of hypopharyngeal carcinoma cells].
abstract: OBJECTIVE
  To investigate the effects of Nimesulide, a selective Cox-2 inhibitor, on the apoptosis, invasion and migration of hypopharyngeal carcinoma cell line (FaDu).
  
  
  METHODS
  Viabilities of FaDu cells treated with various concentrations of Nimesulide were detected by MTT assay. Morphological changes were observed by acridine orange cytochemistry staining. Apoptosis was examined by flow cytometry. The ability of invasion and migration of cells was detected by Transwell chambers. The mRNA and protein expressions of Cox-2, MMP-9 and caspase-3 in response to Nimesulide were examined by RT-PCR and Western blot, respectively.
  
  
  RESULTS
  MTT assay showed that the cell surviving rates significantly decreased in time- and concentration-dependent manners (P < 0.05). The typical morphological changes of apoptotic cells were observed. Percent of apoptosis after 6 h Nimesulide treatment was (32.4 ± 6.1)%. The metastatic cells were decreased by Nimesulide to about 20%. Nimesulide decreased the expressions of Cox-2 and MMP-9, whereas increased expression the of Caspase-3.
  
  
  CONCLUSIONS
  Nimesulide could induce the apoptosis and inhibit metastasis of FaDu cells.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Shandong University, Jinan 250021, China.
authors.forename: Jia-jun
authors.initials: JJ
authors.lastname: Tian
authors.forename: Liang
authors.initials: L
authors.lastname: Yu
authors.forename: Su-mei
authors.initials: SM
authors.lastname: Lu
authors.forename: Jian-feng
authors.initials: JF
authors.lastname: Li
authors.forename: Hai-bo
authors.initials: HB
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D053148:Caspase 3 / Q000378:metabolism; D045744:Cell Line, Tumor; D051546:Cyclooxygenase 2 / Q000378:metabolism; D052246:Cyclooxygenase 2 Inhibitors / Q000494:pharmacology*; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000473:pathology*; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D009362:Neoplasm Metastasis / Q000517:prevention & control*; D013449:Sulfonamides / Q000494:pharmacology*
chemical_list: D052246:Cyclooxygenase 2 Inhibitors; D013449:Sulfonamides; D051546:Cyclooxygenase 2; C496540:PTGS2 protein, human; C505407:CASP3 protein, human; D053148:Caspase 3; D020780:Matrix Metalloproteinase 9; C012655:nimesulide