title: [The study of apoptosis induction effect of vitamin E succinate on Tca8113 human tongue cancer cells].
abstract: OBJECTIVE
  To investigate the apoptosis induction effect of vitamin E succinate (VES) on Tca8113 cells and its possible mechanisms.
  
  
  METHODS
  The proliferative activity of Tca8113 was assessed by methyl thiazolyl tetrazolium (MTT) assay. After Tca8113 cells were treated with different concentrations of VES, apoptotic rates were analyzed by flow cytometry (FCM). Fas monoclonal antibody was used for the blocking test. Fas expression was detected by immuocytochemistry(SABC assay) and FCM.
  
  
  RESULTS
  VES demonstrated a significant growth inhibitory effect and apoptosis induced effect on the Tca8113 cells in a dose- and time-dependent manner. Fas neutralizing antibody can block the apoptosis induced by VES. After the administration of VES, the expression of Fas protein increased and the kytoplasm staining enhanced. Proteinum quantitative analysis showed that the mean fluorescence intensity increased.
  
  
  CONCLUSIONS
  VES can induce apoptosis in human tongue cancer cells, and the up-regulation of the cell surface Fas protein may play an important role in the process.
authors.affiliation: Dept. of Oral and Maxillofacial Surgery, College of Stomatology, Zhengzhou University, Zhengzhou 450052, China.
authors.forename: Xuan-ping
authors.initials: XP
authors.lastname: Cao
authors.forename: Shu-bin
authors.initials: SB
authors.lastname: Wang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.forename: Hao-yang
authors.initials: HY
authors.lastname: Wu
authors.forename: Yan-xi
authors.initials: YX
authors.lastname: Zhang
authors.forename: Xue-jun
authors.initials: XJ
authors.lastname: Liu
authors.forename: Song-tao
authors.initials: ST
authors.lastname: Zhang
mesh_terms: D017209:Apoptosis; D006801:Humans; D013386:Succinates; D014062:Tongue Neoplasms; D014810:Vitamin E
chemical_list: D013386:Succinates; D014810:Vitamin E