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The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions

In living systems, the biomolecules that coat nanoparticles (NPs) alter the NP biological identity and response. Although some biomolecules are more effective in mediating NP stability or biological fate, it is difficult to monitor an individual biomolecule within the complexity of the biota. To und...

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Autores principales: Zapata, Angela, Nguyen, Mai-Loan, Ling, Caleb, Rogers, Jacqueline, Domiano, Sangeetha, Hayzelden, Clive, Wheeler, Korin E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7448706/
https://www.ncbi.nlm.nih.gov/pubmed/32864565
http://dx.doi.org/10.1039/c9na00793h
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author Zapata, Angela
Nguyen, Mai-Loan
Ling, Caleb
Rogers, Jacqueline
Domiano, Sangeetha
Hayzelden, Clive
Wheeler, Korin E.
author_facet Zapata, Angela
Nguyen, Mai-Loan
Ling, Caleb
Rogers, Jacqueline
Domiano, Sangeetha
Hayzelden, Clive
Wheeler, Korin E.
author_sort Zapata, Angela
collection PubMed
description In living systems, the biomolecules that coat nanoparticles (NPs) alter the NP biological identity and response. Although some biomolecules are more effective in mediating NP stability or biological fate, it is difficult to monitor an individual biomolecule within the complexity of the biota. To understand the dependence of protein–NP interactions on common variations in blood, we have evaluated binding between silica NPs and a model gamma-fibrinogen (GF) peptide. Fibrinogen is commonly identified within the protein corona fingerprint of human serum, but its abundance on the NP varies. To assess the relative importance of human serum and solution conditions, GF peptide and silica NP interactions were evaluated with and without serum across various pH, NaCl concentrations, and glucose concentrations. Initial evaluation of the GF peptide and silica NP complexes using circular dichroism and dynamic light scattering show little change in the secondary structure of the peptide and no significant agglomeration of NPs, suggesting peptide–NP complexes are stable across study conditions. Fluorescence anisotropy was used to monitor GF peptide–NP binding. Both with and without serum, binding constants for the gamma-fibrinogen peptide vary significantly upon addition of diluted HS (1 : 500) and 29 mM sodium chloride. Yet, results indicated that gamma-fibrinogen binding interactions with silica NPs are comparatively insensitive to physiologically relevant pH changes and dramatic increases in glucose concentrations. Results highlight the importance of blood chemistries, which vary across individuals and disease states, in mediating protein corona formation.
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spelling pubmed-74487062021-06-01 The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions Zapata, Angela Nguyen, Mai-Loan Ling, Caleb Rogers, Jacqueline Domiano, Sangeetha Hayzelden, Clive Wheeler, Korin E. Nanoscale Adv Chemistry In living systems, the biomolecules that coat nanoparticles (NPs) alter the NP biological identity and response. Although some biomolecules are more effective in mediating NP stability or biological fate, it is difficult to monitor an individual biomolecule within the complexity of the biota. To understand the dependence of protein–NP interactions on common variations in blood, we have evaluated binding between silica NPs and a model gamma-fibrinogen (GF) peptide. Fibrinogen is commonly identified within the protein corona fingerprint of human serum, but its abundance on the NP varies. To assess the relative importance of human serum and solution conditions, GF peptide and silica NP interactions were evaluated with and without serum across various pH, NaCl concentrations, and glucose concentrations. Initial evaluation of the GF peptide and silica NP complexes using circular dichroism and dynamic light scattering show little change in the secondary structure of the peptide and no significant agglomeration of NPs, suggesting peptide–NP complexes are stable across study conditions. Fluorescence anisotropy was used to monitor GF peptide–NP binding. Both with and without serum, binding constants for the gamma-fibrinogen peptide vary significantly upon addition of diluted HS (1 : 500) and 29 mM sodium chloride. Yet, results indicated that gamma-fibrinogen binding interactions with silica NPs are comparatively insensitive to physiologically relevant pH changes and dramatic increases in glucose concentrations. Results highlight the importance of blood chemistries, which vary across individuals and disease states, in mediating protein corona formation. RSC 2020-04-21 /pmc/articles/PMC7448706/ /pubmed/32864565 http://dx.doi.org/10.1039/c9na00793h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zapata, Angela
Nguyen, Mai-Loan
Ling, Caleb
Rogers, Jacqueline
Domiano, Sangeetha
Hayzelden, Clive
Wheeler, Korin E.
The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title_full The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title_fullStr The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title_full_unstemmed The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title_short The role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
title_sort role of human serum and solution chemistry in fibrinogen peptide–nanoparticle interactions
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7448706/
https://www.ncbi.nlm.nih.gov/pubmed/32864565
http://dx.doi.org/10.1039/c9na00793h
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