ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers

This study investigated the application of poly[bis (ethylmethionato) phosphazene] (PαAPz-M) electrospun fibers in tissue engineering, focusing on their reactive oxygen species (ROS) scavenging capabilities and material-directed cell behavior, including the influence of their degradation products on...

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Main Authors: Meng Wang, Kibret Mequanint
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Biomimetics
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Online Access:https://www.mdpi.com/2313-7673/9/11/676
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author Meng Wang
Kibret Mequanint
author_facet Meng Wang
Kibret Mequanint
author_sort Meng Wang
collection DOAJ
description This study investigated the application of poly[bis (ethylmethionato) phosphazene] (PαAPz-M) electrospun fibers in tissue engineering, focusing on their reactive oxygen species (ROS) scavenging capabilities and material-directed cell behavior, including the influence of their degradation products on cell viability and differentiation, and the scaffold topography’s influence on cell alignment. The ROS scavenging ability of PαAPz-M was assessed by DPPH assay, and then PαAPz-M’s protection against exogenous ROS was studied. The results showed enhanced cell viability on PαAPz-M fiber mats under oxidative stress conditions. This study also investigated the effects of the degradation products of PαAPz-M on cell viability and osteogenic differentiation. It was observed that the late-stage degradation product, phosphoric acid, can significantly influence the osteogenic differentiation of MSCs. In contrast, methionine, which is the early-stage degradation product, showed a minimal influence. Additionally, the study fabricated fiber mats that can lead to enhanced cell alignment while maintaining high porosity. Collectively, this study expanded the applications of PαAPz-M fiber mat protection against oxidative stress and guiding osteogenic differentiation and cell alignment.
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spelling doaj-art-f96b1509847544c0a6cd5dbc20a829aa2024-11-26T17:53:40ZengMDPI AGBiomimetics2313-76732024-11-0191167610.3390/biomimetics9110676ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun FibersMeng Wang0Kibret Mequanint1Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, CanadaDepartment of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, CanadaThis study investigated the application of poly[bis (ethylmethionato) phosphazene] (PαAPz-M) electrospun fibers in tissue engineering, focusing on their reactive oxygen species (ROS) scavenging capabilities and material-directed cell behavior, including the influence of their degradation products on cell viability and differentiation, and the scaffold topography’s influence on cell alignment. The ROS scavenging ability of PαAPz-M was assessed by DPPH assay, and then PαAPz-M’s protection against exogenous ROS was studied. The results showed enhanced cell viability on PαAPz-M fiber mats under oxidative stress conditions. This study also investigated the effects of the degradation products of PαAPz-M on cell viability and osteogenic differentiation. It was observed that the late-stage degradation product, phosphoric acid, can significantly influence the osteogenic differentiation of MSCs. In contrast, methionine, which is the early-stage degradation product, showed a minimal influence. Additionally, the study fabricated fiber mats that can lead to enhanced cell alignment while maintaining high porosity. Collectively, this study expanded the applications of PαAPz-M fiber mat protection against oxidative stress and guiding osteogenic differentiation and cell alignment.https://www.mdpi.com/2313-7673/9/11/676biodegradable poly(organophosphazenes)ROS scavengermaterial-guided cell behaviorhuman mesenchymal stem cellsvascular smooth muscle cellsvascular tissue engineering
spellingShingle Meng Wang
Kibret Mequanint
ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
Biomimetics
biodegradable poly(organophosphazenes)
ROS scavenger
material-guided cell behavior
human mesenchymal stem cells
vascular smooth muscle cells
vascular tissue engineering
title ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
title_full ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
title_fullStr ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
title_full_unstemmed ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
title_short ROS Scavenging and Osteogenic Differentiation Potential of L-Methionine-Substituted Poly(Organophosphazene) Electrospun Fibers
title_sort ros scavenging and osteogenic differentiation potential of l methionine substituted poly organophosphazene electrospun fibers
topic biodegradable poly(organophosphazenes)
ROS scavenger
material-guided cell behavior
human mesenchymal stem cells
vascular smooth muscle cells
vascular tissue engineering
url https://www.mdpi.com/2313-7673/9/11/676
work_keys_str_mv AT mengwang rosscavengingandosteogenicdifferentiationpotentialoflmethioninesubstitutedpolyorganophosphazeneelectrospunfibers
AT kibretmequanint rosscavengingandosteogenicdifferentiationpotentialoflmethioninesubstitutedpolyorganophosphazeneelectrospunfibers