Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute

Introduction: Recently, the application of nanofibrous mats for dressing skin wounds has received great attention. In this study, we aimed to fabricate and characterize an electrospun nanofibrous mat containing polycaprolactone (PCL), chitosan (CTS), and propolis for use as a tissue-engineered skin...

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Main Authors: Seyedeh-Sara Hashemi, Ali Akbar Mohammadi, Seyedeh-Somayeh Rajabi, Parisa Sanati, Alireza Rafati, Mehdi Kian, Zahra Zarei
Format: Article
Language:English
Published: Tabriz University of Medical Sciences 2023-07-01
Series:BioImpacts
Subjects:
Online Access:https://bi.tbzmed.ac.ir/PDF/bi-13-275.pdf
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author Seyedeh-Sara Hashemi
Ali Akbar Mohammadi
Seyedeh-Somayeh Rajabi
Parisa Sanati
Alireza Rafati
Mehdi Kian
Zahra Zarei
author_facet Seyedeh-Sara Hashemi
Ali Akbar Mohammadi
Seyedeh-Somayeh Rajabi
Parisa Sanati
Alireza Rafati
Mehdi Kian
Zahra Zarei
author_sort Seyedeh-Sara Hashemi
collection DOAJ
description Introduction: Recently, the application of nanofibrous mats for dressing skin wounds has received great attention. In this study, we aimed to fabricate and characterize an electrospun nanofibrous mat containing polycaprolactone (PCL), chitosan (CTS), and propolis for use as a tissue-engineered skin substitute. Methods: Raw propolis was extracted, and its phenolic and flavonoid contents were measured. The physiochemical and biological properties of the fabricated mats, including PCL, PCL/CTS, and PCL/CTS/Propolis were evaluated by scanning electron microscopy (SEM), atomic force microscopy (AFM), mechanical analysis, swelling and degradation behaviors, contact angle measurement, cell attachment, DAPI staining, and MTT assay. On the other hand, the drug release pattern of propolis from the PCL/CTS/Propolis scaffold was determined. A deep second-degree burn wound model was induced in rats to investigate wound healing using macroscopical and histopathological evaluations. Results: The results revealed that the propolis extract contained high amounts of phenolic and flavonoid compounds. The fabricated scaffold had suitable physicochemical and mechanical properties. Uniform, bead-free, and well-branched fibers were observed in SEM images of mats. AFM analysis indicated that the addition of CTS and propolis to PCL elevated the surface roughness. MTT results revealed that the electrospun PCL/CTS/Propolis mat was biocompatible. The presence of fibroblast cells on the PCL/CTS/Propolis mats was confirmed by DAPI staining and SEM images. Also, propolis was sustainably released from the PCL/CTS/Propolis mat. The animal study revealed that addition of propolis significantly improved wound healing. Conclusion: The nanofibrous PCL/CTS/Propolis mat can be applied as a tissue-engineered skin substitute for healing cutaneous wounds, such as burn wounds.
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spelling doaj.art-2ca89b071c404ef29e48ea5ab73024032023-09-23T05:08:34ZengTabriz University of Medical SciencesBioImpacts2228-56602228-56522023-07-0113427528710.34172/bi.2023.26317bi-26317Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substituteSeyedeh-Sara Hashemi0Ali Akbar Mohammadi1Seyedeh-Somayeh Rajabi2Parisa Sanati3Alireza Rafati4Mehdi Kian5Zahra Zarei6Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, IranBurn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, IranDepartment of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, IranBurn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, IranDivision of Pharmacology and Pharmaceutical Chemistry, Sarvestan Branch, Islamic Azad University, Sarvestan, Fars, IranDepartment of Comparative Biomedical Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Fars, IranDivision of Plastic and Reconstructive Surgery, Department of Surgery, Shiraz University of Medical Sciences, Shiraz, Fars, IranIntroduction: Recently, the application of nanofibrous mats for dressing skin wounds has received great attention. In this study, we aimed to fabricate and characterize an electrospun nanofibrous mat containing polycaprolactone (PCL), chitosan (CTS), and propolis for use as a tissue-engineered skin substitute. Methods: Raw propolis was extracted, and its phenolic and flavonoid contents were measured. The physiochemical and biological properties of the fabricated mats, including PCL, PCL/CTS, and PCL/CTS/Propolis were evaluated by scanning electron microscopy (SEM), atomic force microscopy (AFM), mechanical analysis, swelling and degradation behaviors, contact angle measurement, cell attachment, DAPI staining, and MTT assay. On the other hand, the drug release pattern of propolis from the PCL/CTS/Propolis scaffold was determined. A deep second-degree burn wound model was induced in rats to investigate wound healing using macroscopical and histopathological evaluations. Results: The results revealed that the propolis extract contained high amounts of phenolic and flavonoid compounds. The fabricated scaffold had suitable physicochemical and mechanical properties. Uniform, bead-free, and well-branched fibers were observed in SEM images of mats. AFM analysis indicated that the addition of CTS and propolis to PCL elevated the surface roughness. MTT results revealed that the electrospun PCL/CTS/Propolis mat was biocompatible. The presence of fibroblast cells on the PCL/CTS/Propolis mats was confirmed by DAPI staining and SEM images. Also, propolis was sustainably released from the PCL/CTS/Propolis mat. The animal study revealed that addition of propolis significantly improved wound healing. Conclusion: The nanofibrous PCL/CTS/Propolis mat can be applied as a tissue-engineered skin substitute for healing cutaneous wounds, such as burn wounds.https://bi.tbzmed.ac.ir/PDF/bi-13-275.pdfskin substitutespolycaprolactonechitosanpropolisnanofiberswound healing
spellingShingle Seyedeh-Sara Hashemi
Ali Akbar Mohammadi
Seyedeh-Somayeh Rajabi
Parisa Sanati
Alireza Rafati
Mehdi Kian
Zahra Zarei
Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
BioImpacts
skin substitutes
polycaprolactone
chitosan
propolis
nanofibers
wound healing
title Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
title_full Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
title_fullStr Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
title_full_unstemmed Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
title_short Preparation and evaluation of a polycaprolactone/chitosan/propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
title_sort preparation and evaluation of a polycaprolactone chitosan propolis fibrous nanocomposite scaffold as a tissue engineering skin substitute
topic skin substitutes
polycaprolactone
chitosan
propolis
nanofibers
wound healing
url https://bi.tbzmed.ac.ir/PDF/bi-13-275.pdf
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