title: [Killing effect of cytotoxicty T lymphocyte primed by two different methods preparation of dendritic cells pulsed with antigen on Tca8113 cells in vitro].
abstract: OBJECTIVE
  To study the feasibility of dendritic cells (DCs) vaccine on the therapy of tongue carcinoma and find the better way of antigen load.
  
  
  METHODS
  The antigen peptides of Tca8113 cells were obtained by acid eluted technique and repetitive freeze thaw method. Separating T cell and inducing dendritic cells were obtained from human peripheral blood monocyte. Divided into three groups: Weak acid elution method antigen group, anti-freeze-thaw method antigen group, and the control group (without tumor antigen). T cells and UCs were mixed to culture by different effector-target ratio. Using MTT assay measured the quantities of absorbance and calculated stimulation index. Dendrtic cells pulsed with antigen were mixed with T cells by different effector-target ratio. MIT assay was used to measure the quantities of absorbance and calculate killing rate.
  
  
  RESULTS
  DCs vaccine was constructed successfully. DCs vaccine can induce T lymphocytes to kill Tca8113 cells and display the dose-effect relationship. There was significant difference among the three groups. The acid eluted and repetitive freeze thaw groups were better than the control group. The acid eluted group was better than repetitive freeze thaw group.
  
  
  CONCLUSIONS
  DCs vaccine can induce T lymphocytes to kill Tca8113 cells. The antigen peptides obtained by acid eluted technique is better than repetitive freeze thaw method in immunotherapy of tongue cancer.
authors.affiliation: Dept. of Oral and Maxillofacial Surgery, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China.
authors.forename: Ke-qian
authors.initials: KQ
authors.lastname: Zhi
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu
authors.forename: Wen-hao
authors.initials: WH
authors.lastname: Ren
authors.forename: Ling
authors.initials: L
authors.lastname: Gao
authors.forename: Lu
authors.initials: L
authors.lastname: Zhao
authors.forename: Yong
authors.initials: Y
authors.lastname: Yang
authors.forename: Yin-cheng
authors.initials: YC
authors.lastname: Zhang
mesh_terms: D003713:Dendritic Cells; D006801:Humans; D066298:In Vitro Techniques; D013602:T-Lymphocytes, Cytotoxic; D014062:Tongue Neoplasms