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DNA fusion vaccines enter the clinic

Record type: Article

Induction of effective immune attack on cancer cells in patients requires conversion of weak tumor antigens into strong immunogens. Our strategy employs genetic technology to create DNA vaccines containing tumor antigen sequences fused to microbial genes. The fused microbial protein engages local CD4+ T cells to provide help for anti-tumor immunity, and to reverse potential regulation. In this review, we focus on induction of CD8+ T cells able to kill target tumor cells. The DNA vaccines incorporate tumor-derived peptide sequences fused to an engineered domain of tetanus toxin. In multiple models, this design induces strong CD8+ T-cell responses, able to suppress tumor growth. For clinical relevance, we have used "humanized" mice expressing HLA-A2, successfully inducing cytolytic T-cell responses against a range of candidate human peptides. To overcome physical restriction in translating to patients, we have used electroporation. Clinical trials of patients with cancer are showing induction of responses, with preliminary indications of suppression of tumor growth and evidence for clinically manageable concomitant autoimmunity.

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Citation

Stevenson, Freda K., Mander, Ann, Chudley, Lindsey and Ottensmeier, Christian H. (2011) DNA fusion vaccines enter the clinic Cancer Immunology Immunotherapy, 60, (8), pp. 1147-1151. (doi:10.1007/s00262-011-1042-2). (PMID:21644035).

More information

Published date: August 2011
Organisations: Cancer Sciences

Identifiers

Local EPrints ID: 337159
URI: http://eprints.soton.ac.uk/id/eprint/337159
ISSN: 0340-7004
PURE UUID: 0c364a04-8185-466d-a358-aceb20761182

Catalogue record

Date deposited: 19 Apr 2012 14:11
Last modified: 18 Jul 2017 06:04

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Contributors

Author: Ann Mander
Author: Lindsey Chudley

University divisions


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