Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds

Abstract To effectively translate bioactive scaffolds into a preclinical setting, proper sterilization techniques and storage conditions need to be carefully considered, as the chosen sterilization technique and storage condition might affect the structural and mechanical properties of the scaffolds...

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Autores principales: Olivera Evrova, Damian Kellenberger, Chiara Scalera, Maurizio Calcagni, Pietro Giovanoli, Viola Vogel, Johanna Buschmann
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Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/d0865ea445ab40f6acbbc4ebe5696013
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spelling oai:doaj.org-article:d0865ea445ab40f6acbbc4ebe56960132021-12-02T16:08:42ZImpact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds10.1038/s41598-019-51513-12045-2322https://doaj.org/article/d0865ea445ab40f6acbbc4ebe56960132019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-51513-1https://doaj.org/toc/2045-2322Abstract To effectively translate bioactive scaffolds into a preclinical setting, proper sterilization techniques and storage conditions need to be carefully considered, as the chosen sterilization technique and storage condition might affect the structural and mechanical properties of the scaffolds, as well as the bioactivity and release kinetics of the incorporated biomolecules. Since rarely tested or quantified, we show here in a proof-of-concept study how these parameters are affected by UV sterilization and one week storage at different temperatures using bioactive electrospun DegraPol scaffolds that were specifically designed for application in the field of tendon rupture repair. Even though UV sterilization and the different storage conditions did not impact the morphology or the physicochemical properties of the bioactive scaffolds, UV sterilization caused significant attenuation of the growth factor release kinetics, here platelet derived growth factor (PDGF-BB) release (by approx. 85%) and slight decrease in ascorbic acid release (by approx. 20%). In contrast, 4 °C and −20 °C storage did not have a major effect on the release kinetics of PDGF-BB, while storage at room temperature caused increase in PDGF-BB released. All storage conditions had little effect on ascorbic acid release. Equally important, neither UV sterilization nor storage affected the bioactivity of the released PDGF-BB, suggesting stability of the bioactive scaffolds for at least one week and showing potential for bioactive DegraPol scaffolds to be translated into an off-the-shelf available product. These parameters are expected to be scaffold and protein-dependent.Olivera EvrovaDamian KellenbergerChiara ScaleraMaurizio CalcagniPietro GiovanoliViola VogelJohanna BuschmannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Olivera Evrova
Damian Kellenberger
Chiara Scalera
Maurizio Calcagni
Pietro Giovanoli
Viola Vogel
Johanna Buschmann
Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
description Abstract To effectively translate bioactive scaffolds into a preclinical setting, proper sterilization techniques and storage conditions need to be carefully considered, as the chosen sterilization technique and storage condition might affect the structural and mechanical properties of the scaffolds, as well as the bioactivity and release kinetics of the incorporated biomolecules. Since rarely tested or quantified, we show here in a proof-of-concept study how these parameters are affected by UV sterilization and one week storage at different temperatures using bioactive electrospun DegraPol scaffolds that were specifically designed for application in the field of tendon rupture repair. Even though UV sterilization and the different storage conditions did not impact the morphology or the physicochemical properties of the bioactive scaffolds, UV sterilization caused significant attenuation of the growth factor release kinetics, here platelet derived growth factor (PDGF-BB) release (by approx. 85%) and slight decrease in ascorbic acid release (by approx. 20%). In contrast, 4 °C and −20 °C storage did not have a major effect on the release kinetics of PDGF-BB, while storage at room temperature caused increase in PDGF-BB released. All storage conditions had little effect on ascorbic acid release. Equally important, neither UV sterilization nor storage affected the bioactivity of the released PDGF-BB, suggesting stability of the bioactive scaffolds for at least one week and showing potential for bioactive DegraPol scaffolds to be translated into an off-the-shelf available product. These parameters are expected to be scaffold and protein-dependent.
format article
author Olivera Evrova
Damian Kellenberger
Chiara Scalera
Maurizio Calcagni
Pietro Giovanoli
Viola Vogel
Johanna Buschmann
author_facet Olivera Evrova
Damian Kellenberger
Chiara Scalera
Maurizio Calcagni
Pietro Giovanoli
Viola Vogel
Johanna Buschmann
author_sort Olivera Evrova
title Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
title_short Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
title_full Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
title_fullStr Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
title_full_unstemmed Impact of UV sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
title_sort impact of uv sterilization and short term storage on the in vitro release kinetics and bioactivity of biomolecules from electrospun scaffolds
publisher Nature Portfolio
publishDate 2019
url https://doaj.org/article/d0865ea445ab40f6acbbc4ebe5696013
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