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  • Title: CpG oligonucleotides induce strong humoral but only weak CD4+ T cell responses to protein antigens in rhesus macaques in vivo.
    Author: Hartmann G, Marschner A, Viveros PR, Stahl-Hennig C, Eisenblätter M, Suh YS, Endres S, Tenner-Racz K, Uberla K, Racz P, Steinman RM, Ignatius R.
    Journal: Vaccine; 2005 May 09; 23(25):3310-7. PubMed ID: 15837237.
    Abstract:
    Oligonucleotides containing CpG motifs (CpG ODN) are strong adjuvants for humoral immune responses but data on cellular immune responses in primates are scarce. Rhesus macaque blood contained similar numbers of plasmacytoid dendritic cells and B cells, the key sensors of CpG ODN, as human blood, and these cells were activated by CpG-A and CpG-B in vitro. In vivo, both ODNs induced equal plasma levels of interferon-inducible protein 10 and similarly enhanced antibody responses following i.m. injections of the ODNs, protein antigen, and aluminium hydroxide into rhesus macaques, whereas antigen-specific CD4(+) T cell responses were only slightly increased by CpG ODN.
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