Rejection of Mouse Renal Cell Carcinoma Elicited by Local Secretion of Interleukin‐2

作者: Isao Hara , Hak Hotta , Noriyuki Sato , Hiroshi Eto , Soichi Arakawa

DOI: 10.1111/J.1349-7006.1996.TB00284.X

关键词:

摘要: We introduced the interleukin-2 (IL-2) gene into mouse renal cell carcinoma (RenCa) in order to examine mechanism of tumor rejection. IL-2 gene-transfected RenCa (RenCa/IL-2Hi) exhibited marked retardation growth when implanted a syngeneic host. Growth RenCa/IL-2Hi was also observed athymic nude mice even after depletion natural killer (NK) cells by treatment with anti-asialo GM1 antibody. Histological analysis tumors disclosed non-specific inflammatory changes hosts. Co-injection Bacillus Calmette Guerin considerably enhanced anti-tumor effects. Taken together, these findings strongly suggest that situ production leads rejection through responses without participation T and NK cells. On other hand, had rejected acquired immunity against parental RenCa, suggesting possible memory second tumor.

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