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Pilkington EH, Gustafsson OJR, Xing Y, Hernandez-Fernaud J, Zampronio C, Kakinen A, Faridi A, Ding F, Wilson P, Ke PC, Davis TP. Profiling the Serum Protein Corona of Fibrillar Human Islet Amyloid Polypeptide. ACS Nano 2018; 12:6066-6078. [PMID: 29746093 PMCID: PMC6239983 DOI: 10.1021/acsnano.8b02346] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Amyloids may be regarded as native nanomaterials that form in the presence of complex protein mixtures. By drawing an analogy with the physicochemical properties of nanoparticles in biological fluids, we hypothesized that amyloids should form a protein corona in vivo that would imbue the underlying amyloid with a modified biological identity. To explore this hypothesis, we characterized the protein corona of human islet amyloid polypeptide (IAPP) fibrils in fetal bovine serum using two complementary methodologies developed herein: quartz crystal microbalance and "centrifugal capture", coupled with nanoliquid chromatography tandem mass spectroscopy. Clear evidence for a significant protein corona was obtained. No trends were identified for amyloid corona proteins based on their physicochemical properties, whereas strong binding with IAPP fibrils occurred for linear proteins or multidomain proteins with structural plasticity. Proteomic analysis identified amyloid-enriched proteins that are known to play significant roles in mediating cellular machinery and processing, potentially leading to pathological outcomes and therapeutic targets.
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Affiliation(s)
- Emily H Pilkington
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
- Department of Chemistry , University of Warwick , Library Road , CV4 4AL Coventry , United Kingdom
| | - Ove J R Gustafsson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute , University of South Australia , University Boulevard , Mawson Lakes , SA 5095 , Australia
| | - Yanting Xing
- Department of Physics and Astronomy , Clemson University , Clemson , South Carolina 29634 , United States
| | - Juan Hernandez-Fernaud
- Warwick Proteomics Research Technology Platform, School of Life Sciences , University of Warwick , Gibbet Hill Road , CV4 7AL Coventry , United Kingdom
| | - Cleidi Zampronio
- Warwick Proteomics Research Technology Platform, School of Life Sciences , University of Warwick , Gibbet Hill Road , CV4 7AL Coventry , United Kingdom
| | - Aleksandr Kakinen
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
| | - Ava Faridi
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
| | - Feng Ding
- Department of Physics and Astronomy , Clemson University , Clemson , South Carolina 29634 , United States
| | - Paul Wilson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
- Department of Chemistry , University of Warwick , Library Road , CV4 4AL Coventry , United Kingdom
| | - Pu Chun Ke
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash Institute of Pharmaceutical Sciences , 381 Royal Parade , Parkville , VIC 3052 , Australia
- Department of Chemistry , University of Warwick , Library Road , CV4 4AL Coventry , United Kingdom
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