González-García Laura E, MacGregor Melanie N, Visalakshan Rahul M, Lazarian Artur, Cavallaro Alex A, Morsbach Svenja, Mierczynska-Vasilev Agnieszka, Mailänder Volker, Landfester Katharina, Vasilev Krasimir
UniSA STEM, Future Industries Institute, University of South Australia, Adelaide, SA 5095, Australia.
Flinders Institute for Nanoscale Science & Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia.
Nanomaterials (Basel). 2022 Feb 18;12(4):682. doi: 10.3390/nano12040682.
Nanoparticles are widely used for biomedical applications such as vaccine, drug delivery, diagnostics, and therapeutics. This study aims to reveal the influence of nanoparticle surface functionalization on protein corona formation from blood serum and plasma and the subsequent effects on the innate immune cellular responses. To achieve this goal, the surface chemistry of silica nanoparticles of 20 nm diameter was tailored via plasma polymerization with amine, carboxylic acid, oxazolines, and alkane functionalities. The results of this study show significant surface chemistry-induced differences in protein corona composition, which reflect in the subsequent inflammatory consequences. Nanoparticles rich with carboxylic acid surface functionalities increased the production of pro-inflammatory cytokines in response to higher level of complement proteins and decreased the number of lipoproteins found in their protein coronas. On another hand, amine rich coatings led to increased expressions of anti-inflammatory markers such as arginase. The findings demonstrate the potential to direct physiological responses to nanomaterials via tailoring their surface chemical composition.
纳米颗粒被广泛应用于生物医学领域,如疫苗、药物递送、诊断和治疗。本研究旨在揭示纳米颗粒表面功能化对血清和血浆中蛋白质冠形成的影响以及对先天性免疫细胞反应的后续影响。为实现这一目标,通过等离子体聚合将20纳米直径的二氧化硅纳米颗粒的表面化学性质调整为具有胺、羧酸、恶唑啉和烷烃功能。本研究结果表明,表面化学性质会导致蛋白质冠组成产生显著差异,这反映在随后的炎症后果中。富含羧酸表面功能的纳米颗粒因补体蛋白水平升高而增加促炎细胞因子的产生,并减少其蛋白质冠中脂蛋白的数量。另一方面,富含胺的涂层导致抗炎标志物如精氨酸酶的表达增加。这些发现证明了通过调整纳米材料的表面化学成分来引导其生理反应的潜力。