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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2014 ; 111 (8): 3086-91 Nephropedia Template TP
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Nonagonistic Dectin-1 ligand transforms CpG into a multitask nanoparticulate TLR9 agonist #MMPMID24516163
Proc Natl Acad Sci U S A 2014[Feb]; 111 (8): 3086-91 PMID24516163show ga
CpG oligodeoxynucleotide (ODN), a Toll-like receptor 9 ligand, is a promising immunotherapeutic agent; however, developing an IFN-inducing CpG ODN forming a stable nanoparticle without aggregation has been unsuccessful. Here we generated a nanoparticulate CpG ODN (K3) wrapped by the nonagonistic Dectin-1 ligand schizophyllan (SPG), K3-SPG. K3-SPG stimulates human peripheral blood mononuclear cells to produce large amounts of both type I and II IFN. K3-SPG thus became a potent adjuvant, especially for cytotoxic T-lymphocyte (CTL) induction to coadministered protein antigens without conjugation, which is attributable to its nanoparticulate nature rather than to targeting Dectin-1. Protective potency of K3-SPG as an influenza vaccine adjuvant was demonstrated in both murine and nonhuman primate models. K3-SPG may be used as an IFN inducer as well as a CTL inducer for immunotherapeutic applications.