Physical activation of innate immunity by spiky particles.
Physical activation of innate immunity by spiky particles.
复制标题
尖刺粒子物理激活先天免疫
DOI:
10.1038/s41565-018-0274-0
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发表时间:
2018-11
影响因子:
38.3
通讯作者:
Xie X
中科院分区:
文献类型:
--
作者:
Wang J;Chen HJ;Hang T;Yu Y;Liu G;He G;Xiao S;Yang BR;Yang C;Liu F;Tao J;Wu MX;Xie X
Microbial biochemicals have been indicated as the primary stimulators of innate immunity, the first line of the body’s defence against infections. However, the influence of topological features on a microbe’s surface on immune responses remains largely unknown. Here we demonstrate the ability of TiO2 microparticles decorated with nanospikes (spiky particles) to activate and amplify the immune response in vitro and in vivo. The nanospikes exert mechanical stress on the cells, which results in potassium efflux and inflammasome activation in macrophages and dendritic cells during phagocytosis. The spiky particles augment antigen-specific humoral and cellular immune responses in the presence of monophosphoryl lipid A and elicit protective immunity against tumour growth and influenza viral infection. The study offers insights into how surface physical cues can tune the activation of innate immunity and provides a basis for engineering particles with increased immunogenicity and adjuvanticity.
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影响因子:
3.7
作者:
Jablonski KA;Amici SA;Webb LM;Ruiz-Rosado Jde D;Popovich PG;Partida-Sanchez S;Guerau-de-Arellano M
通讯作者:
Guerau-de-Arellano M
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Vasilev, Krasimir
影响因子:
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作者:
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通讯作者:
Magnuson, Berna