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The viral protein corona directs viral pathogenesis and amyloid aggregation.

Abstract：

:Artificial nanoparticles accumulate a protein corona layer in biological fluids, which significantly influences their bioactivity. As nanosized obligate intracellular parasites, viruses share many biophysical properties with artificial nanoparticles in extracellular environments and here we show that respiratory syncytial virus (RSV) and herpes simplex virus type 1 (HSV-1) accumulate a rich and distinctive protein corona in different biological fluids. Moreover, we show that corona pre-coating differentially affects viral infectivity and immune cell activation. In addition, we demonstrate that viruses bind amyloidogenic peptides in their corona and catalyze amyloid formation via surface-assisted heterogeneous nucleation. Importantly, we show that HSV-1 catalyzes the aggregation of the amyloid β-peptide (Aβ42), a major constituent of amyloid plaques in Alzheimer's disease, in vitro and in animal models. Our results highlight the viral protein corona as an acquired structural layer that is critical for viral-host interactions and illustrate a mechanistic convergence between viral and amyloid pathologies.

journal_name

Nat Commun

journal_title

Nature communications

authors

Ezzat K,Pernemalm M,Pålsson S,Roberts TC,Järver P,Dondalska A,Bestas B,Sobkowiak MJ,Levänen B,Sköld M,Thompson EA,Saher O,Kari OK,Lajunen T,Sverremark Ekström E,Nilsson C,Ishchenko Y,Malm T,Wood MJA,Power UF,Masic

doi

10.1038/s41467-019-10192-2

subject

Has Abstract

pub_date

2019-05-27 00:00:00

pages

2331

issue

1

issn

2041-1723

pii

10.1038/s41467-019-10192-2

journal_volume

10

pub_type

杂志文章

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