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Journal of Virology, September 2000, p. 7745-7754, Vol. 74, No. 17
Department of Microbiology and Molecular
Genetics, Harvard Medical School, Boston, Massachusetts
02115-57161; New England Regional
Primate Research Center, Harvard Medical School, Southborough,
Massachusetts 01772-91022; and AIDS
Vaccine Program, SAIC Frederick, NCI-Frederick Cancer Research & Development Center, Frederick, Maryland 217023
Received 15 February 2000/Accepted 22 May 2000
An effective vaccine for AIDS may require development of novel
vectors capable of eliciting long-lasting immune responses. Here we
report the development and use of replication-competent and
replication-defective strains of recombinant herpes simplex virus (HSV)
that express envelope and Nef antigens of simian immunodeficiency virus
(SIV). The HSV recombinants induced antienvelope antibody responses
that persisted at relatively stable levels for months after the last
administration. Two of seven rhesus monkeys vaccinated with recombinant
HSV were solidly protected, and another showed a sustained reduction in
viral load following rectal challenge with pathogenic SIVmac239 at 22 weeks following the last vaccine administration. HSV vectors thus show
great promise for being able to elicit persistent immune responses and
to provide durable protection against AIDS.
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Vaccine Protection against Simian Immunodeficiency
Virus by Recombinant Strains of Herpes Simplex Virus
*
Corresponding author. Mailing address for David M. Knipe: Department of Microbiology and Molecular Genetics, Harvard
Medical School, Boston, MA 02115-5716. Phone: (617) 432-1934. Fax:
(617) 432-0223. E-mail: david_knipe{at}hms.harvard.edu. Mailing address for Ronald C. Desrosiers: New England Regional Primate Research Center,
Harvard Medical School, One Pine Hill Dr., Box 9102, Southborough, MA 01772-9102. Phone: (508) 624-8002. Fax: (508) 460-0612. E-mail: ronald_desrosiers{at}hms.harvard.edu.
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