Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering

Soft tissue engineering has been seeking ways to mimic the natural extracellular microenvironment that allows cells to migrate and proliferate to regenerate new tissue. Therefore, the reconstruction of soft tissue requires a scaffold possessing the extracellular matrix (ECM)-mimicking fibrous struct...

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Main Authors: Kexin Nie, Shanshan Han, Jianmin Yang, Qingqing Sun, Xiaofeng Wang, Xiaomeng Li, Qian Li
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/9/1977
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author Kexin Nie
Shanshan Han
Jianmin Yang
Qingqing Sun
Xiaofeng Wang
Xiaomeng Li
Qian Li
author_facet Kexin Nie
Shanshan Han
Jianmin Yang
Qingqing Sun
Xiaofeng Wang
Xiaomeng Li
Qian Li
author_sort Kexin Nie
collection DOAJ
description Soft tissue engineering has been seeking ways to mimic the natural extracellular microenvironment that allows cells to migrate and proliferate to regenerate new tissue. Therefore, the reconstruction of soft tissue requires a scaffold possessing the extracellular matrix (ECM)-mimicking fibrous structure and elastic property, which affect the cell functions and tissue regeneration. Herein, an effective method for fabricating nanofibrous hydrogel for soft tissue engineering is demonstrated using gelatin–hydroxyphenylpropionic acid (Gel–HPA) by electrospinning and enzymatic crosslinking. Gel–HPA fibrous hydrogel was prepared by crosslinking the electrospun fibers in ethanol-water solution with an optimized concentration of horseradish peroxidase (HRP) and H<sub>2</sub>O<sub>2</sub>. The prepared fibrous hydrogel held the soft and elastic mechanical property of hydrogels and the three-dimensional (3D) fibrous structure of electrospun fibers. It was proven that the hydrogel scaffolds were biocompatible, improving the cellular adhesion, spreading, and proliferation. Moreover, the fibrous hydrogel showed rapid biodegradability and promoted angiogenesis in vivo. Overall, this study represents a novel biomimetic approach to generate Gel–HPA fibrous hydrogel scaffolds which have excellent potential in soft tissue regeneration applications.
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spelling doaj.art-b7b7ee6aeb9542a3a7abb27e23466ac22023-11-20T11:59:20ZengMDPI AGPolymers2073-43602020-08-01129197710.3390/polym12091977Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue EngineeringKexin Nie0Shanshan Han1Jianmin Yang2Qingqing Sun3Xiaofeng Wang4Xiaomeng Li5Qian Li6School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, ChinaCollege of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, ChinaCenter for Functional Sensor and Actuator, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, JapanSchool of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSoft tissue engineering has been seeking ways to mimic the natural extracellular microenvironment that allows cells to migrate and proliferate to regenerate new tissue. Therefore, the reconstruction of soft tissue requires a scaffold possessing the extracellular matrix (ECM)-mimicking fibrous structure and elastic property, which affect the cell functions and tissue regeneration. Herein, an effective method for fabricating nanofibrous hydrogel for soft tissue engineering is demonstrated using gelatin–hydroxyphenylpropionic acid (Gel–HPA) by electrospinning and enzymatic crosslinking. Gel–HPA fibrous hydrogel was prepared by crosslinking the electrospun fibers in ethanol-water solution with an optimized concentration of horseradish peroxidase (HRP) and H<sub>2</sub>O<sub>2</sub>. The prepared fibrous hydrogel held the soft and elastic mechanical property of hydrogels and the three-dimensional (3D) fibrous structure of electrospun fibers. It was proven that the hydrogel scaffolds were biocompatible, improving the cellular adhesion, spreading, and proliferation. Moreover, the fibrous hydrogel showed rapid biodegradability and promoted angiogenesis in vivo. Overall, this study represents a novel biomimetic approach to generate Gel–HPA fibrous hydrogel scaffolds which have excellent potential in soft tissue regeneration applications.https://www.mdpi.com/2073-4360/12/9/1977fibrous hydrogelenzymatic crosslinkingsoft tissue engineering
spellingShingle Kexin Nie
Shanshan Han
Jianmin Yang
Qingqing Sun
Xiaofeng Wang
Xiaomeng Li
Qian Li
Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
Polymers
fibrous hydrogel
enzymatic crosslinking
soft tissue engineering
title Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
title_full Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
title_fullStr Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
title_full_unstemmed Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
title_short Enzyme-Crosslinked Electrospun Fibrous Gelatin Hydrogel for Potential Soft Tissue Engineering
title_sort enzyme crosslinked electrospun fibrous gelatin hydrogel for potential soft tissue engineering
topic fibrous hydrogel
enzymatic crosslinking
soft tissue engineering
url https://www.mdpi.com/2073-4360/12/9/1977
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AT shanshanhan enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering
AT jianminyang enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering
AT qingqingsun enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering
AT xiaofengwang enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering
AT xiaomengli enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering
AT qianli enzymecrosslinkedelectrospunfibrousgelatinhydrogelforpotentialsofttissueengineering