Surface nanocavitation of titanium modulates macrophage activity

Marianne B Ariganello,1,* Dainelys Guadarrama Bello,1,* Alejandra Rodriguez-Contreras,1 Shayan Sadeghi,1 Gaetano Isola,1 Fabio Variola,2,3 Antonio Nanci1,4 1Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dental Medicine, Université d...

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Autores principales:	Ariganello MB, Guadarrama Bello D, Rodriguez-Contreras A, Sadeghi S, Isola G, Variola F, Nanci A
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	Nanotopography Inflammation Osteopontin SPARC Stabilin-1 Cytokines Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/2e546511a6544fd4bdbe0cf996714cee
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spelling	oai:doaj.org-article:2e546511a6544fd4bdbe0cf996714cee2021-12-02T09:00:22ZSurface nanocavitation of titanium modulates macrophage activity1178-2013https://doaj.org/article/2e546511a6544fd4bdbe0cf996714cee2018-12-01T00:00:00Zhttps://www.dovepress.com/surface-nanocavitation-of-titanium-modulates-macrophage-activity-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Marianne B Ariganello,1,* Dainelys Guadarrama Bello,1,* Alejandra Rodriguez-Contreras,1 Shayan Sadeghi,1 Gaetano Isola,1 Fabio Variola,2,3 Antonio Nanci1,4 1Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, QC, Canada; 2Department of Mechanical Engineering, University of Ottawa, Ottawa, ON, Canada; 3Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada; 4Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada *These authors contributed equally to this work Background: Nanoscale surface modifications are widely touted to improve the biocompatibility of medically relevant materials. Immune cells, such as macrophages, play a critical role in the initial healing events following implantation. Methods: To understand the response of macrophages to nanotopography better, we exposed U937-derived macrophages to a distinctive mesoporous titanium surface (TiNano) produced by a process of simple chemical nanocavitation, and to mechanically polished titanium (TiPolished) and glass coverslip (Glass) surfaces as controls. Cell numbers and morphology were evaluated. Osteopontin expression and that of the proinflammatory SPARC protein and its stabilin 1 receptor were analyzed. Release of inflammation-associated cytokines and chemokines was also measured. Results: Compared to the two control surfaces, there were fewer U937 cells on TiNano, and these exhibited a more rounded morphology with long filopodia. The cells showed areas of punctate actin distribution, indicating formation of podosomes. Of the three proteins examined, only osteopontin’s immunofluorescence signal was clearly reduced. Irrespective of the substrate, the cytokine assay revealed important variations in expression levels of the multiple molecules analyzed and downregulation in a number of chemokines by the TiNano surface. Conclusion: These results indicate that macrophages sense and respond to the physicochemical cueing generated by the nanocavitated surface, triggering cellular and molecular changes consistent with lesser inflammatory propensity. Given the previously reported beneficial outcome of this mesoporous surface on osteogenic activity, it could be presumed that modulation of the macrophagic response it elicits may also contribute to initial bone-integration events. Keywords: nanotopography, inflammation, osteopontin, SPARC, stabilin 1, cytokinesAriganello MBGuadarrama Bello DRodriguez-Contreras ASadeghi SIsola GVariola FNanci ADove Medical PressarticleNanotopographyInflammationOsteopontinSPARCStabilin-1CytokinesMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 13, Pp 8297-8308 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nanotopography Inflammation Osteopontin SPARC Stabilin-1 Cytokines Medicine (General) R5-920
spellingShingle	Nanotopography Inflammation Osteopontin SPARC Stabilin-1 Cytokines Medicine (General) R5-920 Ariganello MB Guadarrama Bello D Rodriguez-Contreras A Sadeghi S Isola G Variola F Nanci A Surface nanocavitation of titanium modulates macrophage activity
description	Marianne B Ariganello,1,* Dainelys Guadarrama Bello,1,* Alejandra Rodriguez-Contreras,1 Shayan Sadeghi,1 Gaetano Isola,1 Fabio Variola,2,3 Antonio Nanci1,4 1Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, QC, Canada; 2Department of Mechanical Engineering, University of Ottawa, Ottawa, ON, Canada; 3Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada; 4Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada *These authors contributed equally to this work Background: Nanoscale surface modifications are widely touted to improve the biocompatibility of medically relevant materials. Immune cells, such as macrophages, play a critical role in the initial healing events following implantation. Methods: To understand the response of macrophages to nanotopography better, we exposed U937-derived macrophages to a distinctive mesoporous titanium surface (TiNano) produced by a process of simple chemical nanocavitation, and to mechanically polished titanium (TiPolished) and glass coverslip (Glass) surfaces as controls. Cell numbers and morphology were evaluated. Osteopontin expression and that of the proinflammatory SPARC protein and its stabilin 1 receptor were analyzed. Release of inflammation-associated cytokines and chemokines was also measured. Results: Compared to the two control surfaces, there were fewer U937 cells on TiNano, and these exhibited a more rounded morphology with long filopodia. The cells showed areas of punctate actin distribution, indicating formation of podosomes. Of the three proteins examined, only osteopontin’s immunofluorescence signal was clearly reduced. Irrespective of the substrate, the cytokine assay revealed important variations in expression levels of the multiple molecules analyzed and downregulation in a number of chemokines by the TiNano surface. Conclusion: These results indicate that macrophages sense and respond to the physicochemical cueing generated by the nanocavitated surface, triggering cellular and molecular changes consistent with lesser inflammatory propensity. Given the previously reported beneficial outcome of this mesoporous surface on osteogenic activity, it could be presumed that modulation of the macrophagic response it elicits may also contribute to initial bone-integration events. Keywords: nanotopography, inflammation, osteopontin, SPARC, stabilin 1, cytokines
format	article
author	Ariganello MB Guadarrama Bello D Rodriguez-Contreras A Sadeghi S Isola G Variola F Nanci A
author_facet	Ariganello MB Guadarrama Bello D Rodriguez-Contreras A Sadeghi S Isola G Variola F Nanci A
author_sort	Ariganello MB
title	Surface nanocavitation of titanium modulates macrophage activity
title_short	Surface nanocavitation of titanium modulates macrophage activity
title_full	Surface nanocavitation of titanium modulates macrophage activity
title_fullStr	Surface nanocavitation of titanium modulates macrophage activity
title_full_unstemmed	Surface nanocavitation of titanium modulates macrophage activity
title_sort	surface nanocavitation of titanium modulates macrophage activity
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/2e546511a6544fd4bdbe0cf996714cee
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Surface nanocavitation of titanium modulates macrophage activity

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