Enhancement of the Immunoadjuvant Activity of Immunostimulatory DNA Sequence By Liposomal Delivery

Eli Kedar, Igal Louria-Hayon, Aviva Joseph, Zichria Zakay-Rones, Tomoko Hayashi, Kenji Takabayashi, Yechezkel Barenholz

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Bacterial DNA and its synthetic immunostimulatory oligodeoxynucleotides’ analogs (ISS-ODN or CpG motifs) are potent stimulators of both innate immunity and specific adaptive immune responses (1–5). Bacterial DNA and ISSODNs directly activate monocytes/macrophages, dendritic cells, natural killer (NK) cells and B cells (6–10), induce the production of proinflammatory cytokines (e.g., IL-6, IL-12, IFNs, TNFa) (4,6,7,11,12), and upregulate the expression of MHC I, MHC II and co-stimulatory molecules (9,13). In animal studies, ISS-ODNs exhibit strong Th1 (2,14–18) and mucosal adjuvanticity to a wide range of antigens (2,3,14,19–26) or allergens (27–30). Furthermore, pretreatment with ISS-ODN, even without concomitant administration of the relevant antigens, can afford protection (for about 2 wk) against subsequent infection with intracellular pathogens (31–35), indicating activation of innate immunity.
Original languageAmerican English
Title of host publicationMicrobial DNA and Host Immunity
EditorsEyal Raz
Place of PublicationTotowa, NJ
PublisherHumana Press
Pages203-218
Number of pages16
ISBN (Print)978-1-59259-305-7
DOIs
StatePublished - 2002

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