Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines

Abstract Atmospheric pressure plasma jets have been shown to impact several cancer cell lines, both in vitro and in vivo. These effects are based on the biochemistry of the reactive oxygen and nitrogen species generated by plasmas in physiological liquids, referred to as plasma-conditioned liquids....

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Autores principales: Inès Hamouda, Cédric Labay, Uroš Cvelbar, Maria-Pau Ginebra, Cristina Canal
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/47d921fd105545d185e32ea419c02b27
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spelling oai:doaj.org-article:47d921fd105545d185e32ea419c02b272021-12-02T15:28:47ZSelectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines10.1038/s41598-021-96857-92045-2322https://doaj.org/article/47d921fd105545d185e32ea419c02b272021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96857-9https://doaj.org/toc/2045-2322Abstract Atmospheric pressure plasma jets have been shown to impact several cancer cell lines, both in vitro and in vivo. These effects are based on the biochemistry of the reactive oxygen and nitrogen species generated by plasmas in physiological liquids, referred to as plasma-conditioned liquids. Plasma-conditioned media are efficient in the generation of reactive species, inducing selective cancer cell death. However, the concentration of reactive species generated by plasma in the cell culture media of different cell types can be highly variable, complicating the ability to draw precise conclusions due to the differential sensitivity of different cells to reactive species. Here, we compared the effects of direct and indirect plasma treatment on non-malignant bone cells (hOBs and hMSCs) and bone cancer cells (SaOs-2s and MG63s) by treating the cells directly or exposing them to previously treated cell culture medium. Biological effects were correlated with the concentrations of reactive species generated in the liquid. A linear increase in reactive species in the cell culture medium was observed with increased plasma treatment time independent of the volume treated. Values up to 700 µM for H2O2 and 140 µM of NO2 − were attained in 2 mL after 15 min of plasma treatment in AdvDMEM cell culture media. Selectivity towards bone cancer cells was observed after both direct and indirect plasma treatments, leading to a decrease in bone cancer cell viability at 72 h to 30% for the longest plasma treatment times while maintaining the survival of non-malignant cells. Therefore, plasma-conditioned media may represent the basis for a potentially novel non-invasive technique for bone cancer therapy.Inès HamoudaCédric LabayUroš CvelbarMaria-Pau GinebraCristina CanalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Inès Hamouda
Cédric Labay
Uroš Cvelbar
Maria-Pau Ginebra
Cristina Canal
Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
description Abstract Atmospheric pressure plasma jets have been shown to impact several cancer cell lines, both in vitro and in vivo. These effects are based on the biochemistry of the reactive oxygen and nitrogen species generated by plasmas in physiological liquids, referred to as plasma-conditioned liquids. Plasma-conditioned media are efficient in the generation of reactive species, inducing selective cancer cell death. However, the concentration of reactive species generated by plasma in the cell culture media of different cell types can be highly variable, complicating the ability to draw precise conclusions due to the differential sensitivity of different cells to reactive species. Here, we compared the effects of direct and indirect plasma treatment on non-malignant bone cells (hOBs and hMSCs) and bone cancer cells (SaOs-2s and MG63s) by treating the cells directly or exposing them to previously treated cell culture medium. Biological effects were correlated with the concentrations of reactive species generated in the liquid. A linear increase in reactive species in the cell culture medium was observed with increased plasma treatment time independent of the volume treated. Values up to 700 µM for H2O2 and 140 µM of NO2 − were attained in 2 mL after 15 min of plasma treatment in AdvDMEM cell culture media. Selectivity towards bone cancer cells was observed after both direct and indirect plasma treatments, leading to a decrease in bone cancer cell viability at 72 h to 30% for the longest plasma treatment times while maintaining the survival of non-malignant cells. Therefore, plasma-conditioned media may represent the basis for a potentially novel non-invasive technique for bone cancer therapy.
format article
author Inès Hamouda
Cédric Labay
Uroš Cvelbar
Maria-Pau Ginebra
Cristina Canal
author_facet Inès Hamouda
Cédric Labay
Uroš Cvelbar
Maria-Pau Ginebra
Cristina Canal
author_sort Inès Hamouda
title Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
title_short Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
title_full Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
title_fullStr Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
title_full_unstemmed Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
title_sort selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/47d921fd105545d185e32ea419c02b27
work_keys_str_mv AT ineshamouda selectivityofdirectplasmatreatmentandplasmaconditionedmediainbonecancercelllines
AT cedriclabay selectivityofdirectplasmatreatmentandplasmaconditionedmediainbonecancercelllines
AT uroscvelbar selectivityofdirectplasmatreatmentandplasmaconditionedmediainbonecancercelllines
AT mariapauginebra selectivityofdirectplasmatreatmentandplasmaconditionedmediainbonecancercelllines
AT cristinacanal selectivityofdirectplasmatreatmentandplasmaconditionedmediainbonecancercelllines
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