Proteomics

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Plasma protein corona on superparamagnetic iron oxide nanoparticles (SPIONs)


ABSTRACT: We determined the composition of the plasma protein corona on silica-coated versus dextran-coated iron oxide nanoparticles using mass spectrometry-based proteomics approaches. Gene ontology (GO) enrichment analysis and Ingenuity Pathway Analysis (IPA) revealed distinct protein corona compositions for the two different SPIONs. Relaxivity of silica-coated SPIONs was modulated by the presence of a protein corona. Moreover, the viability of primary human monocyte-derived macrophages was influenced by the protein corona on silica-coated, but not dextran-coated SPIONs, and the protein corona promoted cellular uptake of silica-coated SPIONs, but did not affect internalization of dextran-coated SPIONs.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Plasma

SUBMITTER: Maria Pernemalm  

LAB HEAD: Janne Lehtiö

PROVIDER: PXD000766 | Pride | 2015-10-12

REPOSITORIES: Pride

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Publications

Proteomics Analysis Reveals Distinct Corona Composition on Magnetic Nanoparticles with Different Surface Coatings: Implications for Interactions with Primary Human Macrophages.

Vogt Carmen C   Pernemalm Maria M   Kohonen Pekka P   Laurent Sophie S   Hultenby Kjell K   Vahter Marie M   Lehtiö Janne J   Toprak Muhammet S MS   Fadeel Bengt B  

PloS one 20151007 10


Superparamagnetic iron oxide nanoparticles (SPIONs) have emerged as promising contrast agents for magnetic resonance imaging. The influence of different surface coatings on the biocompatibility of SPIONs has been addressed, but the potential impact of the so-called corona of adsorbed proteins on the surface of SPIONs on their biological behavior is less well studied. Here, we determined the composition of the plasma protein corona on silica-coated versus dextran-coated SPIONs using mass spectrom  ...[more]

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