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CpG oligodeoxynucleotides enhance neonatal resistance to Listeria infection.
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Date
2005-01-15
Author
Ito, S
Ishii, KJ
Gürsel, Mayda
Shirotra, H
Ihata, A
Klinman, DM
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Infection by Listeria monocytogenes causes serious morbidity and mortality during the neonatal period. Previous studies established that immunostimulatory CpG oligodeoxynucleotides (ODN) can increased the resistance of adult mice to many infectious pathogens, including Listeria. This work examines the capacity of CpG ODN to stimulate a protective immune response in newborns. Results indicate that dendritic cells, macrophages, and B cells from 3-day-old mice respond to CpG stimulation by secreting IFN- , IL-12, and/or TNF-. Spleen cells from CpG-treated neonates produce large amounts of cytokine and NO when exposed to bacteria in vitro. Newborns treated with CpG ODN are protected from lethal Listeria challenge and generate Agspecific CD4 and CD8 T cells that afford long-term protection against subsequent infection. These results demonstrate that cellular elements of the neonatal immune system respond to stimulation by CpG ODN, thereby reducing host susceptibility to infectious pathogens.
Subject Keywords
Immunology
URI
https://hdl.handle.net/11511/38043
Journal
Journal of immunology (Baltimore, Md. : 1950)
DOI
https://doi.org/10.4049/jimmunol.174.2.777
Collections
Department of Biology, Article