Previous Article | Next Article ![]()
Journal of Virology, September 2000, p. 7787-7793, Vol. 74, No. 17
Division of Microbiology and Immunology,
Yerkes Primate Research Center, Emory University, Atlanta, Georgia
30329
Received 28 December 1999/Accepted 26 May 2000
Maternal antibody is the major form of protection from disease in
early life when the neonatal immune system is still immature; however,
the presence of maternal antibody also interferes with active
immunization, placing infants at risk for severe bacterial and viral
infection. We tested the ability of intramuscular and gene gun
immunization with DNA expressing influenza virus hemagglutinin (HA) and
nucleoprotein (NP) to raise protective humoral and cellular responses
in the presence or absence of maternal antibody. Neonatal mice born to
influenza virus-immune mothers raised full antibody responses to NP but
failed to generate antibody responses to HA. In contrast, the presence
of maternal antibody did not affect the generation of long-lived
CD8+ T-cell responses to both HA and NP. Thus, maternal
antibody did not affect cell-mediated responses but did affect humoral
responses, with the ability to limit the antibody response correlating
with whether the DNA-expressed immunogen was localized in the plasma membrane or within the cell.
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
DNA Vaccines for Influenza Virus: Differential
Effects of Maternal Antibody on Immune Responses to Hemagglutinin
and Nucleoprotein
*
Corresponding author. Mailing address: Division of
Microbiology and Immunology, Yerkes Primate Research Center, Emory
University, 954 Gatewood Road NE, Atlanta, GA 30329. Phone: (404)
727-7377. Fax: (404) 727-7768. E-mail:
hrobins{at}rmy.emory.edu.
This article has been cited by other articles:
Copyright © 2009 by the American Society for Microbiology. For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»