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Chinese Journal of Hepatology ; (12): 409-412, 2002.
Article in Chinese | WPRIM | ID: wpr-276549

ABSTRACT

<p><b>OBJECTIVE</b>To study the effects of 4-1BBL on antitumor immunity induced in vivo by murine 4-1BBL gene transfected Hepa1-6.</p><p><b>METHODS</b>Retrovirus vector was used to transfer the 4-1BBL gene into syngeneic murine heptocellular carcinoma cell line Hepa1-6. The products were termed as Hepa1-6/4-1BBL, and then the TCV4-1BBL was obtained by treating them with mitomycin (MMC). Three models (immunological model, early model, and later model) were established to study the antitumor effects of TCV4-1BBL.</p><p><b>RESULTS</b>(1)In immunological models, the syngeneic mice were completely protected by inoculation with TCV4-1BBL, survived free from tumor for a long period (over 100 days). (2)In early models (7 days after inoculation), Hepa1-6 tumor cells showed strong immunogenicity effects and (3) In later models (14 days after inoculation), they had obvious antitumor effects and most of the tumors were disappeared.</p><p><b>CONCLUSIONS</b>The antitumor effect against syngeneic murine hepatocellular carcinoma in vivo is obviously enhanced by treating them with TCV4-1BBL</p>


Subject(s)
Animals , Female , Mice , 4-1BB Ligand , Cell Division , Allergy and Immunology , Liver Neoplasms, Experimental , Allergy and Immunology , Pathology , Mice, Inbred C57BL , Neoplasm Transplantation , Plasmids , Genetics , Allergy and Immunology , Transfection , Tumor Cells, Cultured , Tumor Necrosis Factor-alpha , Genetics , Allergy and Immunology
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