Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits

Abstract Background Cartilage damage is a common medical issue in clinical practice. Complete cartilage repair remains a significant challenge owing to the inferior quality of regenerative tissue. Safe and non-invasive magnetic therapy combined with tissue engineering to repair cartilage may be a pr...

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Autores principales: Jiyuan Yan, Chaoxu Liu, Chang Tu, Ruizhuo Zhang, Xiangyu Tang, Hao Li, Huaixi Wang, Yongzhuang Ma, Yingchi Zhang, Hua Wu, Gaohong Sheng
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Publicado: BMC 2021
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spelling oai:doaj.org-article:edd0c633f2bd45948604944c65a74d952021-11-14T12:08:05ZHydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits10.1186/s13287-021-02638-61757-6512https://doaj.org/article/edd0c633f2bd45948604944c65a74d952021-11-01T00:00:00Zhttps://doi.org/10.1186/s13287-021-02638-6https://doaj.org/toc/1757-6512Abstract Background Cartilage damage is a common medical issue in clinical practice. Complete cartilage repair remains a significant challenge owing to the inferior quality of regenerative tissue. Safe and non-invasive magnetic therapy combined with tissue engineering to repair cartilage may be a promising breakthrough. Methods In this study, a composite scaffold made of Hydroxyapatite-Collagen type-I (HAC) and PLGA-PEG-PLGA thermogel was produced to match the cartilage and subchondral layers in osteochondral defects, respectively. Bone marrow mesenchymal stem cells (BMSC) encapsulated in the thermogel were stimulated by an electromagnetic field (EMF). Effect of EMF on the proliferation and chondrogenic differentiation potential was evaluated in vitro. 4 mm femoral condyle defect was constructed in rabbits. The scaffolds loaded with BMSCs were implanted into the defects with or without EMF treatment. Effects of the combination treatment of the EMF and composite scaffold on rabbit osteochondral defect was detected in vivo. Results In vitro experiments showed that EMF could promote proliferation and chondrogenic differentiation of BMSCs partly by activating the PI3K/AKT/mTOR and Wnt1/LRP6/β-catenin signaling pathway. In vivo results further confirmed that the scaffold with EMF enhances the repair of osteochondral defects in rabbits, and, in particular, cartilage repair. Conclusion Hydrogel-Hydroxyapatite-Monomeric Collagen type-I scaffold with low-frequency EMF treatment has the potential to enhance osteochondral repair.Jiyuan YanChaoxu LiuChang TuRuizhuo ZhangXiangyu TangHao LiHuaixi WangYongzhuang MaYingchi ZhangHua WuGaohong ShengBMCarticleHydrogelHydroxyapatiteMonomeric Collagen type I (Col1)Electromagnetic fieldsOsteochondral defectsMesenchymal stem cellsMedicine (General)R5-920BiochemistryQD415-436ENStem Cell Research & Therapy, Vol 12, Iss 1, Pp 1-21 (2021)
institution DOAJ
collection DOAJ
language EN
topic Hydrogel
Hydroxyapatite
Monomeric Collagen type I (Col1)
Electromagnetic fields
Osteochondral defects
Mesenchymal stem cells
Medicine (General)
R5-920
Biochemistry
QD415-436
spellingShingle Hydrogel
Hydroxyapatite
Monomeric Collagen type I (Col1)
Electromagnetic fields
Osteochondral defects
Mesenchymal stem cells
Medicine (General)
R5-920
Biochemistry
QD415-436
Jiyuan Yan
Chaoxu Liu
Chang Tu
Ruizhuo Zhang
Xiangyu Tang
Hao Li
Huaixi Wang
Yongzhuang Ma
Yingchi Zhang
Hua Wu
Gaohong Sheng
Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
description Abstract Background Cartilage damage is a common medical issue in clinical practice. Complete cartilage repair remains a significant challenge owing to the inferior quality of regenerative tissue. Safe and non-invasive magnetic therapy combined with tissue engineering to repair cartilage may be a promising breakthrough. Methods In this study, a composite scaffold made of Hydroxyapatite-Collagen type-I (HAC) and PLGA-PEG-PLGA thermogel was produced to match the cartilage and subchondral layers in osteochondral defects, respectively. Bone marrow mesenchymal stem cells (BMSC) encapsulated in the thermogel were stimulated by an electromagnetic field (EMF). Effect of EMF on the proliferation and chondrogenic differentiation potential was evaluated in vitro. 4 mm femoral condyle defect was constructed in rabbits. The scaffolds loaded with BMSCs were implanted into the defects with or without EMF treatment. Effects of the combination treatment of the EMF and composite scaffold on rabbit osteochondral defect was detected in vivo. Results In vitro experiments showed that EMF could promote proliferation and chondrogenic differentiation of BMSCs partly by activating the PI3K/AKT/mTOR and Wnt1/LRP6/β-catenin signaling pathway. In vivo results further confirmed that the scaffold with EMF enhances the repair of osteochondral defects in rabbits, and, in particular, cartilage repair. Conclusion Hydrogel-Hydroxyapatite-Monomeric Collagen type-I scaffold with low-frequency EMF treatment has the potential to enhance osteochondral repair.
format article
author Jiyuan Yan
Chaoxu Liu
Chang Tu
Ruizhuo Zhang
Xiangyu Tang
Hao Li
Huaixi Wang
Yongzhuang Ma
Yingchi Zhang
Hua Wu
Gaohong Sheng
author_facet Jiyuan Yan
Chaoxu Liu
Chang Tu
Ruizhuo Zhang
Xiangyu Tang
Hao Li
Huaixi Wang
Yongzhuang Ma
Yingchi Zhang
Hua Wu
Gaohong Sheng
author_sort Jiyuan Yan
title Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
title_short Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
title_full Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
title_fullStr Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
title_full_unstemmed Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
title_sort hydrogel-hydroxyapatite-monomeric collagen type-i scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits
publisher BMC
publishDate 2021
url https://doaj.org/article/edd0c633f2bd45948604944c65a74d95
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