The clinical use of tumor necrosis factor alpha (TNF) as an anticancer drug is limited to local treatments because of its dose-limiting systemic toxicity. We show here that murine TNF fused with CNGRC peptide (NGR-TNF), an aminopeptidase N (CD13) ligand that targets activated blood vessels in tumors, is 12-15 times more efficient than murine TNF in decreasing the tumor burden in lymphoma and melanoma animal models, whereas its toxicity is similar. Similarly, human NGR-TNF induced stronger antitumor effects than human TNF, even with 30 times lower doses. Coadministration of murine NGR-TNF with a CNGRC peptide or an anti-CD13 antibody markedly decreased its antitumor effects. Tumor regression, induced by doses of murine NGR-TNF lower than the LD50, was accompanied by protective immunity. In contrast, no cure was induced by TNF at any dose. These results suggest that targeted delivery of TNF to CD13 may enhance its immunotherapeutic properties. Moreover, these findings reveal the potential of tumor homing peptides to generate a new class of recombinant cytokines that compared to immunocytokines have a simpler structure, could be easier to produce and are potentially less immunogenic.

Curnis, F., Sacchi, A., Borgna, L., Magni, F., Gasparri, A., Corti, A. (2000). Enhancement of tumor necrosis factor α antitumor immunotherapeutic properties by targeted delivery to aminopeptidase N (CD 13). NATURE BIOTECHNOLOGY, 18(11), 1185-1190 [10.1038/81183].

Enhancement of tumor necrosis factor α antitumor immunotherapeutic properties by targeted delivery to aminopeptidase N (CD 13)

MAGNI, FULVIO;
2000

Abstract

The clinical use of tumor necrosis factor alpha (TNF) as an anticancer drug is limited to local treatments because of its dose-limiting systemic toxicity. We show here that murine TNF fused with CNGRC peptide (NGR-TNF), an aminopeptidase N (CD13) ligand that targets activated blood vessels in tumors, is 12-15 times more efficient than murine TNF in decreasing the tumor burden in lymphoma and melanoma animal models, whereas its toxicity is similar. Similarly, human NGR-TNF induced stronger antitumor effects than human TNF, even with 30 times lower doses. Coadministration of murine NGR-TNF with a CNGRC peptide or an anti-CD13 antibody markedly decreased its antitumor effects. Tumor regression, induced by doses of murine NGR-TNF lower than the LD50, was accompanied by protective immunity. In contrast, no cure was induced by TNF at any dose. These results suggest that targeted delivery of TNF to CD13 may enhance its immunotherapeutic properties. Moreover, these findings reveal the potential of tumor homing peptides to generate a new class of recombinant cytokines that compared to immunocytokines have a simpler structure, could be easier to produce and are potentially less immunogenic.
Articolo in rivista - Articolo scientifico
Time Factors; Electrophoresis, Polyacrylamide Gel; Neoplasms; Dose-Response Relationship, Drug; Antigens, CD13; Flow Cytometry; Neoplasms, Experimental; Tumor Cells, Cultured; Chromatography, Gel; Mice; Neoplasm Transplantation; Mass Spectrometry; U937 Cells; Ligands; Lymphoma; Cell Line; Animals; Cell Separation; Melanoma, Experimental; Humans; Tumor Necrosis Factor-alpha; Recombinant Fusion Proteins; HL-60 Cells; Mice, Inbred C57BL; Neovascularization, Pathologic; Protein Binding
English
nov-2000
18
11
1185
1190
none
Curnis, F., Sacchi, A., Borgna, L., Magni, F., Gasparri, A., Corti, A. (2000). Enhancement of tumor necrosis factor α antitumor immunotherapeutic properties by targeted delivery to aminopeptidase N (CD 13). NATURE BIOTECHNOLOGY, 18(11), 1185-1190 [10.1038/81183].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/16329
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