Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies

I n this study, a thermosensitive poly N-vinylcaprolactam -g-collagen PNVCL-g-Col hybrid hydrogel was synthesized by conjugation using the NHS/EDC cross-linking system, and characterized. At first, the efficiency of in vitro sustained delivery of human vascular endothelial growth factor VEGF fro...

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Main Author: Serap Durkut
Format: Article
Language:English
Published: Hitit University 2019-03-01
Series:Hittite Journal of Science and Engineering
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/1506602
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author Serap Durkut
author_facet Serap Durkut
author_sort Serap Durkut
collection DOAJ
description I n this study, a thermosensitive poly N-vinylcaprolactam -g-collagen PNVCL-g-Col hybrid hydrogel was synthesized by conjugation using the NHS/EDC cross-linking system, and characterized. At first, the efficiency of in vitro sustained delivery of human vascular endothelial growth factor VEGF from the thermosensitive PNVCL-g-Col hydrogel modified with heparin, was evaluated for duration of ten days under in vitro physiological conditions 37oC, pH 7.4 . The results indicated that PNVCL-g-Col hydrogel preserved its stability and released ~90% of the loaded VEGF within this time period. In vitro study showed that PNVCL-g-Col was basically histocompatible. Then, the in vivo angiogenic activity of the VEGF-releasing PNVCL-g-Col was investigated using a subcutaneous rat model. In vivo study confirmed that angiogenic-factor-loaded PNVCL-g-Col had the capacity to induce neovascularization indicating that the in vivo bioactivity of the VEGF was preserved in the thermosensitive PNVCL-g-Col
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spelling doaj.art-e3355a9119c64e69bece07642546b6402023-10-10T11:17:28ZengHitit UniversityHittite Journal of Science and Engineering2148-41712019-03-0161576110.17350/HJSE19030000121150Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo StudiesSerap Durkut0Ankara University, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, TurkeyI n this study, a thermosensitive poly N-vinylcaprolactam -g-collagen PNVCL-g-Col hybrid hydrogel was synthesized by conjugation using the NHS/EDC cross-linking system, and characterized. At first, the efficiency of in vitro sustained delivery of human vascular endothelial growth factor VEGF from the thermosensitive PNVCL-g-Col hydrogel modified with heparin, was evaluated for duration of ten days under in vitro physiological conditions 37oC, pH 7.4 . The results indicated that PNVCL-g-Col hydrogel preserved its stability and released ~90% of the loaded VEGF within this time period. In vitro study showed that PNVCL-g-Col was basically histocompatible. Then, the in vivo angiogenic activity of the VEGF-releasing PNVCL-g-Col was investigated using a subcutaneous rat model. In vivo study confirmed that angiogenic-factor-loaded PNVCL-g-Col had the capacity to induce neovascularization indicating that the in vivo bioactivity of the VEGF was preserved in the thermosensitive PNVCL-g-Colhttps://dergipark.org.tr/tr/download/article-file/1506602thermosensitive polymersustained releaseconjugationangiogenesishybrid hydrogelvegf.
spellingShingle Serap Durkut
Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
Hittite Journal of Science and Engineering
thermosensitive polymer
sustained release
conjugation
angiogenesis
hybrid hydrogel
vegf.
title Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
title_full Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
title_fullStr Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
title_full_unstemmed Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
title_short Evaluation of Angiogenic Factor Release From Thermosensitive Poly N-Vinylcaprolactam -g-Collagen: In Vitro and In Vivo Studies
title_sort evaluation of angiogenic factor release from thermosensitive poly n vinylcaprolactam g collagen in vitro and in vivo studies
topic thermosensitive polymer
sustained release
conjugation
angiogenesis
hybrid hydrogel
vegf.
url https://dergipark.org.tr/tr/download/article-file/1506602
work_keys_str_mv AT serapdurkut evaluationofangiogenicfactorreleasefromthermosensitivepolynvinylcaprolactamgcollageninvitroandinvivostudies