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Article Dans Une Revue International Journal of Biological Macromolecules Année : 2024

Understanding protein-nanoparticle interactions leading to protein corona formation: In vitro - in vivo correlation study

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Nanoparticles (NPs) in contact with biological fluids form a biomolecular corona through interactions with proteins, lipids, and sugars, acquiring new physicochemical properties. This work explores the interaction between selected proteins (hemoglobin and fetuin-A) that may alter NP circulation time and NPs of different surface charges (neutral, positive, and negative). The interaction with key proteins albumin and transferrin, the two of the most abundant proteins in plasma was also studied. Binding affinity was investigated using quartz crystal microbalance and fluorescence quenching, while circular dichroism assessed potential conformational changes. The data obtained from in vitro experiments were compared to in vivo protein corona data. The results indicate that electrostatic interactions primarily drive protein-NP interactions, and higher binding affinity does not necessarily translate into more significant structural changes. In vitro and single protein-NP studies provide valuable insights that can be correlated with in vivo observations, opening exciting possibilities for future protein corona studies.
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hal-04303586 , version 1 (23-11-2023)

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Cintia Marques, Plinio Maroni, Lionel Maurizi, Olivier Jordan, Gerrit Borchard. Understanding protein-nanoparticle interactions leading to protein corona formation: In vitro - in vivo correlation study. International Journal of Biological Macromolecules, 2024, 256 (1), pp.128339. ⟨10.1016/j.ijbiomac.2023.128339⟩. ⟨hal-04303586⟩
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