Anti-tumor effects on human laryngeal carcinoma Hep-2 of recombinant fowlpox virus expressing chicken anemia virus Apoptin gene / 临床耳鼻咽喉头颈外科杂志
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
;
(24): 264-270, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-748246
ABSTRACT
OBJECTIVE@#To investigate the anti-tumor effects and the mechanism of the recombinant fowlpox virus expressing Apoptin gene on human laryngeal carcinoma Hep-2.@*METHOD@#Hep-2 cells cultured in vitro were infected with vFVApoptin. The anti-tumor effects on Hep-2 cells were measured through MTT staining and, the mitochondrial trans-membrane potential (delta psi m) and reactive oxygen species (ROS) were analyzed by flow cytometry. Western blot was used to detect the release of cytochrome c (Cyto c). Caspase-3/9 activities were measured by colorimetric assay.@*RESULT@#vFVApoptin could restrain Hep-2 cells significantly and, had the function of down-regulating delta psi m, up-regulating ROS, promoting Cyto c release and activating Caspase-3/9.@*CONCLUSION@#Cyto c were released from mitochondria by the function of up-regulating ROS of vFVApoptin. Cyto c triggered Caspase-9 and, after the activation of Caspase-9, downstream apoptotic factors, such as caspase-3, were activated. Eventually, Hep-2 cells were suppressed by mitochondrial pathway apoptosis induced by vFVApoptin.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Tumor Cells, Cultured
/
Apoptosis
/
Chicken anemia virus
/
Capsid Proteins
/
Fowlpox virus
/
Genetics
Limits:
Animals
/
Humans
Language:
Chinese
Journal:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
Year:
2009
Type:
Article
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