Priming for T-cell-mediated rejection of established tumors by cutaneous DNA immunization Journal Article
| Authors: | Ross, H. M.; Weber, L. W.; Wang, S.; Piskun, G.; Dyall, R.; Song, P.; Takechi, Y.; Nikolić-Zugić, J.; Houghton, A. N.; Lewis, J. J. |
| Article Title: | Priming for T-cell-mediated rejection of established tumors by cutaneous DNA immunization |
| Abstract: | DNA immunization has been shown to elicit both antibody and CTL responses against antigens expressed by infections organisms. Because CTL responses have been implicated in rejection of cancer, we investigated whether DNA immunization by particle bombardment using a gene gun could induce CTL responses that were capable of rejecting tumors in mice. DNA immunization by particle bombardment using genes encoding β-galactosidase and ovalbumin primed mice to generate CTLs in two genetic backgrounds (DBA/2 and C57BL/6 strains, respectively). DNA immunization was more potent in inducing CTLs than immunization with an optimized regimen of ovalbumin peptide plus immune adjuvant. Immunity induced by DNA immunization protected mice against s.c. challenge with tumors expressing the β-galactosidase antigen. Tumors were rejected even when DNA immunization was started 3 or 7 days after tumor challenge as tumors were becoming established. Tumor rejection required CD8+ T cells, confirming a role for CTLs in vivo. These studies show that DNA immunization by particle bombardment can efficiently induce CTL responses that are capable of rejecting even established tumors. |
| Keywords: | nonhuman; t lymphocyte; animal cell; mouse; animals; mice; spleen; animal experiment; tumor cells, cultured; transfection; mice, inbred c57bl; antigen presentation; cancer vaccines; antigen recognition; recombinant proteins; t-lymphocytes, cytotoxic; beta galactosidase; tumor rejection; injections, subcutaneous; vaccines, dna; beta-galactosidase; biolistics; cancer immunology; ovalbumin; mice, inbred dba; priority journal; article; mast-cell sarcoma |
| Journal Title: | Clinical Cancer Research |
| Volume: | 3 |
| Issue: | 12 |
| ISSN: | 1078-0432 |
| Publisher: | American Association for Cancer Research |
| Date Published: | 1997-12-01 |
| Start Page: | 2191 |
| End Page: | 2196 |
| Language: | English |
| PUBMED: | 9815614 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Article -- Export Date: 17 March 2017 -- Source: Scopus |
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