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Preadsorbed Chymotrypsin Modulated the Composition of Protein Corona and Immunological Response

Ling Han,Yijing Wang,Hongyan Jia,Zhiqin Zhang,Shouning Yang,Fangxiao Li,Fengfeng Li,Huayan Yang

Published 2024 in ACS Omega

ABSTRACT

It is well-known that proteins after administration into biological environments adsorb on the surface of nanoparticles (NPs). The biological identity could be determined by protein corona, but whether and how the preadsorbed molecules impact the composition of the corona and immunological response have rarely been reported. Here, the effects of preadsorbed chymotrypsin (Chy) on forming protein corona and subsequent immunological response are reported. We find that preadsorbed Chy on the surface of AuNPs results in a protein corona with enriched immunoglobulins and reduced human serum albumin protein, which further affect the polarization of macrophages into specific phenotypes. Our study suggests that the protein surrounding the nanoparticles could affect the protein corona and immunological response, which may direct the preparation of multifunctional nanomedicine for future studies.

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