Apoptosis-inducing effect of recombinant adeno-associated virus serotype 8 with TRAIL gene on human colon cancer cell line
- VernacularTitle:8型腺相关病毒介导的TRAIL基因促结肠癌细胞凋亡的实验研究
- Author:
Baoguo ZHOU
;
Haiquan QIAO
;
Liquan TONG
;
Shangha PAN
;
Xueying SUN
- Publication Type:Journal Article
- Keywords:
Colonic neoplasms;
Tumor neocrosis factor;
Genes, tumor suppressor
- From:
Chinese Journal of General Surgery
1997;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the apoptosis-inducing effect of recombinant adeno-associated virus serotype 8 with soluble TRAIL gene on human colon cancer cell line HCT116. Method Recombinant adeno-associated virus serotype 8 with TRAIL gene was generated by triple plasmid transfection of HEK293 cells with phosphate calcium precipitation. After infected by recombinant virus, cell growth assay was carried out by counting alive cells after trypan blue exclusion. Alternations of cell morphology was examined by microscopy. Cell apoptosis was detected by DNA laddering. The protein expressions of apoptosis-3 and apoptosis-8 were detected by Western blotting. Result The growth rate of the AAV8-sTRAIL infected HCT116 cells was significantly inhibited. Recombinant virus induced apoptosis in colon tumor cells by triggering caspase cascade, but not in normal human hepatocytes. Conclusion AAV8-sTRAIL efficiently suppresses the growth of human colon cancer cell line HCT116 by inducing apoptosis, with no evident toxicity to normal cell.
