Synthesis and study of cell-penetrating peptide-modified gold nanoparticles

Félix Boussoufi,1 Sandra M Navarro Gallón,2 Run Chang,3 Thomas Jay Webster3 1Department of High Performance Materials, Sigma Clermont, Clermont-Ferrand, France; 2Biotechnology Group, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Medellín, Colombia...

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Autores principales:	Boussoufi F, Navarro Gallón SM, Chang R, Webster TJ
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	Gold nanoparticles cell-penetrating peptide cysteine fibroblast Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/0cd9ae0836d44e4996dc0a5a5d311427
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spelling	oai:doaj.org-article:0cd9ae0836d44e4996dc0a5a5d3114272021-12-02T09:59:51ZSynthesis and study of cell-penetrating peptide-modified gold nanoparticles1178-2013https://doaj.org/article/0cd9ae0836d44e4996dc0a5a5d3114272018-10-01T00:00:00Zhttps://www.dovepress.com/synthesis-and-study-of-cell-penetrating-peptide-modified-gold-nanopart-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Félix Boussoufi,1 Sandra M Navarro Gallón,2 Run Chang,3 Thomas Jay Webster3 1Department of High Performance Materials, Sigma Clermont, Clermont-Ferrand, France; 2Biotechnology Group, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Medellín, Colombia; 3Department of Chemical Engineering, Northeastern University, Boston, MA, USA Background: In nanomedicine, gold nanoparticles (AuNPs) have demonstrated versatile therapeutic efficiencies and, in particular, have been developed for the treatment of various cancers due to their high selectivity in killing cancer, not healthy, cells. Methods: In this study, AuNPs were conjugated with the cell-penetrating peptide Cys-(Arg)8-Asp-Ser (CRRRRRRRRGDS) by direct cross-linking of the cysteine’s thiol group to the gold surface and a fibronectin-derived RGD group was also used due to its efficacy toward cancer cell targeting and possible promotion of healthy fibroblast functions. Results: Ultraviolet–visible absorbance spectrum and transmission electron microscope images of the synthesized peptide-capped AuNPs (PEP-AuNPs) validated the formation of AuNP aggregates. The presence of peptides on AuNPs was confirmed by Fourier transform infrared spectroscopy and quantified by a bicinchoninic acid assay. After being modified with the arginine-rich peptide, the AuNPs possessed a positive charge, as their zeta potential increased from -23.81±8.43 mV to 8 mV on average. In this manner, an easy method to conjugate AuNPs was shown here. Further, MTS assays were performed using healthy human dermal fibroblasts. After 24 hours of treatment with PEP-AuNPs, the cell density increased dramatically to around 25,000 cells/cm². Results further showed a very high half-maximal inhibitory concentration of 69.2 µM for the PEP-AuNPs (indicating low toxicity). Conclusion: The results showed for the first time the ability of PEP-AuNPs to promote human dermal fibroblast cell viability, which after further investigation, may show an ability to replace cancerous tissue with healthy soft tissue. Keywords: gold nanoparticles, cell-penetrating peptide, cysteine, fibroblastBoussoufi FNavarro Gallón SMChang RWebster TJDove Medical PressarticleGold nanoparticlescell-penetrating peptidecysteinefibroblastMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 13, Pp 6199-6205 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gold nanoparticles cell-penetrating peptide cysteine fibroblast Medicine (General) R5-920
spellingShingle	Gold nanoparticles cell-penetrating peptide cysteine fibroblast Medicine (General) R5-920 Boussoufi F Navarro Gallón SM Chang R Webster TJ Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
description	Félix Boussoufi,1 Sandra M Navarro Gallón,2 Run Chang,3 Thomas Jay Webster3 1Department of High Performance Materials, Sigma Clermont, Clermont-Ferrand, France; 2Biotechnology Group, Faculty of Exact and Natural Sciences, Universidad de Antioquia, Medellín, Colombia; 3Department of Chemical Engineering, Northeastern University, Boston, MA, USA Background: In nanomedicine, gold nanoparticles (AuNPs) have demonstrated versatile therapeutic efficiencies and, in particular, have been developed for the treatment of various cancers due to their high selectivity in killing cancer, not healthy, cells. Methods: In this study, AuNPs were conjugated with the cell-penetrating peptide Cys-(Arg)8-Asp-Ser (CRRRRRRRRGDS) by direct cross-linking of the cysteine’s thiol group to the gold surface and a fibronectin-derived RGD group was also used due to its efficacy toward cancer cell targeting and possible promotion of healthy fibroblast functions. Results: Ultraviolet–visible absorbance spectrum and transmission electron microscope images of the synthesized peptide-capped AuNPs (PEP-AuNPs) validated the formation of AuNP aggregates. The presence of peptides on AuNPs was confirmed by Fourier transform infrared spectroscopy and quantified by a bicinchoninic acid assay. After being modified with the arginine-rich peptide, the AuNPs possessed a positive charge, as their zeta potential increased from -23.81±8.43 mV to 8 mV on average. In this manner, an easy method to conjugate AuNPs was shown here. Further, MTS assays were performed using healthy human dermal fibroblasts. After 24 hours of treatment with PEP-AuNPs, the cell density increased dramatically to around 25,000 cells/cm². Results further showed a very high half-maximal inhibitory concentration of 69.2 µM for the PEP-AuNPs (indicating low toxicity). Conclusion: The results showed for the first time the ability of PEP-AuNPs to promote human dermal fibroblast cell viability, which after further investigation, may show an ability to replace cancerous tissue with healthy soft tissue. Keywords: gold nanoparticles, cell-penetrating peptide, cysteine, fibroblast
format	article
author	Boussoufi F Navarro Gallón SM Chang R Webster TJ
author_facet	Boussoufi F Navarro Gallón SM Chang R Webster TJ
author_sort	Boussoufi F
title	Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
title_short	Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
title_full	Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
title_fullStr	Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
title_full_unstemmed	Synthesis and study of cell-penetrating peptide-modified gold nanoparticles
title_sort	synthesis and study of cell-penetrating peptide-modified gold nanoparticles
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/0cd9ae0836d44e4996dc0a5a5d311427
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Synthesis and study of cell-penetrating peptide-modified gold nanoparticles

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