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[Effect of apoptosis of vesicular stomatitis virus on tumor cells of nasopharyngeal carcinoma in vivo].

OBJECTIVE
To investigate apoptosis induced by vesicular stomatitis virus (VSV) in HNE-1 cancer cells of human nasopharyngeal carcinoma by models of nude mice-BALB/c in vivo.


METHOD
HNE-1 cells are collected from culture bottle and infected infra right-side post-back epithelium of nude mice-BALB/c (6 x 10(6) cells/0.1 ml/each mice) to create HNE-1 tumor models of nude mice-BALB/c. When the diameter of HNE-1 tumors is 5 to 8 millimeter, HNE-1 tumor models are treated with VSV (1 x 10(8) pfu /ml) or Saline. By Hoechst 33258-staining under fluorescence microscope, induction of apoptosis by VSV in HNE-1 tumor models are recorded and studied, compared with that by Saline in HNE-1 tumor models in vivo.


RESULT
Compared with control group of saline, apoptosis of HNE-1 cancer cells of human nasopharyngeal carcinoma increase apparently in the remaining tumor cells of nude mice treated by VSV (P < 0.01).


CONCLUSION
The present study suggests that the treatment with VSV could augment the apoptosis cells of human nasopharyngeal carcinoma in vivo.