The in vivo antitumor activity of murine liver tumor vaccine expressing MIP-1alpha / 中华外科杂志
Chinese Journal of Surgery
; (12): 789-791, 2002.
Article
de Zh
| WPRIM
| ID: wpr-257764
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To observe the in vivo antitumor activity of murine liver tumor vaccine expressing MIP-1alpha mediated by recombinant adenoviral vector.</p><p><b>METHODS</b>The infection efficacy was measured by GFP expression 48 hours after infection of Hepa1-6, and the number of cells was counted daily for 14 days. 5 x 10(6) modified Hepa1-6 cells were inoculated subcutaneously to C57BL/6 mice and the tumor-free animals were rechallenged by 2 x 10(6) wild-type Hepa1-6 cells or syngenic EL4 cells four weeks later. The tumor volume was measured twice a week.</p><p><b>RESULTS</b>Adenoviral vectors could efficiently infect Hepa1-6 cells in vitro, and the in vitro growth rate of AdmMIP-1alpha modified Hepa1-6 cells was not affected; however the in vivo tumorigenicity was significantly decreased, compared with that of control vector modified Hepa1-6. Rechallenge of the tumor-free mice four weeks after administration of AdmMIP-1alpha with the parental Hepa1-6 cells resulted in significant inhibition of tumor growth, but there was no significant difference when rechallenged with EL4.</p><p><b>CONCLUSIONS</b>The liver cancer cells expressing mMIP-1alpha mediated by recombinant adenoviral vector decrease tumorigenicity and elicit specific immunological protection, and could be used as an effective liver tumor vaccine.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Thérapeutique
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Vaccins synthétiques
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Thérapie génétique
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Adenoviridae
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Vaccins anticancéreux
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Protéines inflammatoires des macrophages
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Allergie et immunologie
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Chimiokine CCL3
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Chimiokine CCL4
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Génétique
Limites du sujet:
Animals
langue:
Zh
Texte intégral:
Chinese Journal of Surgery
Année:
2002
Type:
Article