Effects of human lung cancer A549 cell line by FasL gene transduction
- VernacularTitle:腺病毒介导的FasL基因转移及对肺癌细胞生长和凋亡的影响
- Author:
Shi-Ying ZHENG
;
Jun ZHAO
;
Jin-Feng GE
;
Al ET
- Publication Type:Journal Article
- Keywords:
FasL gene;
gene transfer;
apoptosis;
lung neoplasms;
gene therapy
- From:China Oncology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Purpose:To study the effect of FasL gene on human lung adenocarcinoma cell lines and possibility of ex- ogenous FasL gene for gene therapy of lung cancer.Methods:An adenoviral expression vector with full length cDNA of FasL gene insert was constructed(Ad-FasL) and transfected into A549 cells.The effect of exogenous FasL gene on the growth of A549 cells was examined in vitro and in vivo.Results:Expression of FasL gene in A549 cells was confirmed by FCM and RT-PCR.The in vitro growth of the Ad-FasL transfected A549 cells was significantly inhibited (inhibition rate: 84%) as compared to mock (Ad-LacZ) transfected A549 cells.Colony-forming activity in vitro of the Ad-FasL transfected A549 cells was completely inhibited.The Ad-FasL transfected cells became apoptotic which was confirmed by the appear- ance of pre-G_1 on flow cytometry (FCM).The growth of A549 xenografts in nude mice was retarded by intra-tumol injection of Ad-FasL.Conclusions:FasL gene participates in the induction of cell apoptosis.Its use in gene therapy of cancer is promising.
