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Nanoparticle endocytosis is driven by monocyte phenotype rather than nanoparticle size under high shear flow conditions

bioRxiv, ISSN: 2692-8205
2023
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Nanoparticle endocytosis is driven by monocyte phenotype rather than nanoparticle size under high shear flow conditions

2023 JUL 19 (NewsRx) -- By a News Reporter-Staff News Editor at Genomics & Genetics Daily -- According to news reporting based on a preprint

Article Description

Monocytes are members of the mononuclear phagocyte system involved in pathogen clearance and nanoparticle pharmacokinetics. Monocytes play a critical role in the development and progression of cardiovascular disease and, recently, in SARS-CoV-2 pathogenesis. While studies have investigated the effect of nanoparticle modulation on monocyte uptake, their capacity for nanoparticle clearance is poorly studied. In this study, we investigated the impact of ACE2 deficiency, frequently observed in individuals with cardiovascular complications, on monocyte nanoparticle endocytosis. Moreover, we investigated nanoparticle uptake as a function of nanoparticle size, physiological shear stress, and monocyte phenotype. Our Design of Experiment (DOE) analysis found that the THP-1 ACE2 cells showed a greater preference for 100nm particles under atherosclerotic conditions than THP-1 wild-type cells. Observing how nanoparticles can modulate monocytes in the context of disease can inform precision dosing.

Bibliographic Details

Aldarondo, Dasia A; Huynh, Chris; Dickey, Leah; Bilynsky, Colette; Lee, Yerim; Wayne, Elizabeth C

Cold Spring Harbor Laboratory

Biochemistry, Genetics and Molecular Biology; Agricultural and Biological Sciences; Immunology and Microbiology; Neuroscience; Pharmacology, Toxicology and Pharmaceutics

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