Biophysical Properties of Self-Assembled Immune Signals Impact Signal Processing and the Nature of Regulatory Immune Function.
Biophysical Properties of Self-Assembled Immune Signals Impact Signal Processing and the Nature of Regulatory Immune Function.
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自组装免疫信号的生物物理特性影响信号处理和调节免疫功能的性质。
DOI:
10.1021/acs.nanolett.0c05118
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发表时间:
2021-05-12
期刊:
影响因子:
10.8
通讯作者:
Jewell CM
中科院分区:
文献类型:
--
作者:
Froimchuk E;Oakes RS;Kapnick SM;Yanes AA;Jewell CM
Outcomes during immunotherapy are impacted not only by the specific therapeutic signals and pharmacodynamics, but also by the biophysical forms in which signals are delivered. This integration is determinative in autoimmunity because disease is caused by immune dysregulation and inflammation. Unfortunately, the links between nanomaterial design, biophysical properties, and immune regulation are poorly defined. Here we designed cationic peptide antigens with defined charge distributions, then used electrostatics to assemble these peptides into complexes with anionic regulatory cues. We first show complexes induce antigen-specific tolerance during myelin-driven autoimmunity. We next show affinity between these immune cues is controlled by charge balance, and that affinity confers distinct biophysical properties important in immunological processing, including antigen availability. The underlying binding affinities between the self-assembled signals influenced inflammatory gene expression in dendritic cells and antigen-specific regulatory outcomes in self-reactive transgenic T cell. This granular understanding of nanomaterial-immune interactions contributes to more rational immunotherapy design.
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