An adjuvant strategy enabled by modulation of the physical properties of microbial ligands expands antigen immunogenicity.

An adjuvant strategy enabled by modulation of the physical properties of microbial ligands expands antigen immunogenicity.
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DOI:
10.1016/j.cell.2022.01.009
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发表时间:
2022-02-17
期刊:
影响因子:
64.5
通讯作者:
Zanoni I
Zanoni I
中科院分区:
生物学1区
文献类型:
--
作者:
Borriello F;Poli V;Shrock E;Spreafico R;Liu X;Pishesha N;Carpenet C;Chou J;Di Gioia M;McGrath ME;Dillen CA;Barrett NA;Lacanfora L;Franco ME;Marongiu L;Iwakura Y;Pucci F;Kruppa MD;Ma Z;Lowman DW;Ensley HE;Nanishi E;Saito Y;O'Meara TR;Seo HS;Dhe-Paganon S;Dowling DJ;Frieman M;Elledge SJ;Levy O;Irvine DJ;Ploegh HL;Williams DL;Zanoni I

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Activation of the innate immune system via pattern recognition receptors (PRRs) is key to generate lasting adaptive immunity. PRRs detect unique chemical patterns associated with invading microorganism, but if and how the physical properties of PRR ligands influence development of the immune response remains unknown. Through the study of fungal mannans we show that the physical form of PRR ligands dictates the immune response. Soluble mannans are immunosilent in the periphery but elicit a potent pro-inflammatory response in the draining lymph node (dLN). By modulating the physical form of mannans, we developed a formulation that targets both the periphery and dLN. When combined with viral glycoprotein antigens, this mannan formulation broadens epitope recognition, elicits potent antigen-specific neutralizing antibodies, and confers protection against viral infections of the lung. Thus, the physical properties of microbial ligands determine the outcome of the immune response and can be harnessed for vaccine development. Modulating the physical form of fungal mannans improves lymph node targeting and improves the adjuvant properties of these immune stimuli when included in vaccine formulations against respiratory viruses.
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