The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration

Tissue-engineered nerve grafts (TENGs) are the most promising way for repairing long-distance peripheral nerve defects. Chitosan and poly (lactic-co-glycolic acid) (PLGA) scaffolds are considered as the promising materials in the pharmaceutical and biomedical fields especially in the field of tissue...

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Autores principales: Panjian Lu, Gang Wang, Tianmei Qian, Xiaodong Cai, Ping Zhang, Meiyuan Li, Yinying Shen, Chengbin Xue, Hongkui Wang
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Publicado: Elsevier 2021
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spelling oai:doaj.org-article:1fc9be8a71e44b218d7bdc3d9f62c4802021-11-18T04:51:18ZThe balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration2590-006410.1016/j.mtbio.2021.100158https://doaj.org/article/1fc9be8a71e44b218d7bdc3d9f62c4802021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590006421000661https://doaj.org/toc/2590-0064Tissue-engineered nerve grafts (TENGs) are the most promising way for repairing long-distance peripheral nerve defects. Chitosan and poly (lactic-co-glycolic acid) (PLGA) scaffolds are considered as the promising materials in the pharmaceutical and biomedical fields especially in the field of tissue engineering. To further clarify the effects of a chitosan conduit inserted with various quantity of poly (lactic-co-glycolic acid) (PLGA) scaffolds, and their degrades on the peripheral nerve regeneration, the chitosan nerve conduit inserted with different amounts of PLGA scaffolds were used to repair rat sciatic nerve defects. The peripheral nerve regeneration at the different time points was dynamically and comprehensively evaluated. Moreover, the influence of different amounts of PLGA scaffolds on the regeneration microenvironment including inflammatory response and cell state were also revealed. The modest abundance of PLGA is more instrumental to the success of nerve regeneration, which is demonstrated in terms of the structure of the regenerated nerve, reinnervation of the target muscle, nerve impulse conduction, and overall function. The PLGA scaffolds aid the migration and maturation of Schwann cells. Furthermore, the PLGA and chitosan degradation products in a correct ratio neutralize, reducing the inflammatory response and enhancing the regeneration microenvironment. The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration. The findings represent a further step towards programming TENGs construction, applying polyester materials in regenerative medicine, and understanding the neural regeneration microenvironment.Panjian LuGang WangTianmei QianXiaodong CaiPing ZhangMeiyuan LiYinying ShenChengbin XueHongkui WangElsevierarticlePLGASchwann cellsRegeneration microenvironmentInflammationMedicine (General)R5-920Biology (General)QH301-705.5ENMaterials Today Bio, Vol 12, Iss , Pp 100158- (2021)
institution DOAJ
collection DOAJ
language EN
topic PLGA
Schwann cells
Regeneration microenvironment
Inflammation
Medicine (General)
R5-920
Biology (General)
QH301-705.5
spellingShingle PLGA
Schwann cells
Regeneration microenvironment
Inflammation
Medicine (General)
R5-920
Biology (General)
QH301-705.5
Panjian Lu
Gang Wang
Tianmei Qian
Xiaodong Cai
Ping Zhang
Meiyuan Li
Yinying Shen
Chengbin Xue
Hongkui Wang
The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
description Tissue-engineered nerve grafts (TENGs) are the most promising way for repairing long-distance peripheral nerve defects. Chitosan and poly (lactic-co-glycolic acid) (PLGA) scaffolds are considered as the promising materials in the pharmaceutical and biomedical fields especially in the field of tissue engineering. To further clarify the effects of a chitosan conduit inserted with various quantity of poly (lactic-co-glycolic acid) (PLGA) scaffolds, and their degrades on the peripheral nerve regeneration, the chitosan nerve conduit inserted with different amounts of PLGA scaffolds were used to repair rat sciatic nerve defects. The peripheral nerve regeneration at the different time points was dynamically and comprehensively evaluated. Moreover, the influence of different amounts of PLGA scaffolds on the regeneration microenvironment including inflammatory response and cell state were also revealed. The modest abundance of PLGA is more instrumental to the success of nerve regeneration, which is demonstrated in terms of the structure of the regenerated nerve, reinnervation of the target muscle, nerve impulse conduction, and overall function. The PLGA scaffolds aid the migration and maturation of Schwann cells. Furthermore, the PLGA and chitosan degradation products in a correct ratio neutralize, reducing the inflammatory response and enhancing the regeneration microenvironment. The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration. The findings represent a further step towards programming TENGs construction, applying polyester materials in regenerative medicine, and understanding the neural regeneration microenvironment.
format article
author Panjian Lu
Gang Wang
Tianmei Qian
Xiaodong Cai
Ping Zhang
Meiyuan Li
Yinying Shen
Chengbin Xue
Hongkui Wang
author_facet Panjian Lu
Gang Wang
Tianmei Qian
Xiaodong Cai
Ping Zhang
Meiyuan Li
Yinying Shen
Chengbin Xue
Hongkui Wang
author_sort Panjian Lu
title The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
title_short The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
title_full The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
title_fullStr The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
title_full_unstemmed The balanced microenvironment regulated by the degradants of appropriate PLGA scaffolds and chitosan conduit promotes peripheral nerve regeneration
title_sort balanced microenvironment regulated by the degradants of appropriate plga scaffolds and chitosan conduit promotes peripheral nerve regeneration
publisher Elsevier
publishDate 2021
url https://doaj.org/article/1fc9be8a71e44b218d7bdc3d9f62c480
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