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Journal of Virology, September 1999, p. 7877-7881, Vol. 73, No. 9
0022-538X/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Human Papillomavirus Type 16 E7 DNA Vaccine: Mutation in the Open Reading Frame of E7 Enhances Specific Cytotoxic T-Lymphocyte Induction and Antitumor Activity

Wei Shi,1 Ping Bu,1 Jianzhong Liu,1 Axel Polack,2 Susan Fisher,3 and Liang Qiao1,*

Department of Microbiology and Immunology1 and Cardinal Bernardin Cancer Center,3 Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois 60153, and National Research Center for Environment and Health, Institute of Clinical Molecular Biology and Tumor Genetics, D-81377 Munich, Germany2

Received 11 January 1999/Accepted 25 May 1999

A human papillomavirus type 16 E7 DNA vaccine with the open reading frame encoding mutations in two zinc-binding motifs expressed a rapidly degraded E7 protein. This vaccine induced a significantly stronger E7-specific cytotoxic T-lymphocyte response and better tumor protection in mice than did a wild-type E7 DNA vaccine expressing a stable E7 protein.


* Corresponding author. Mailing address: Department of Microbiology and Immunology, Stritch School of Medicine, Building 105, Room 2890, Loyola University Medical Center, 2160 South First Ave., Maywood, IL 60153. Phone: (708) 327-3481. Fax: (708) 216-1196. E-mail: lqiao{at}luc.edu.


Journal of Virology, September 1999, p. 7877-7881, Vol. 73, No. 9
0022-538X/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.



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