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首页> 外文期刊>Artificial cells, nanomedicine, and biotechnology. >An in vitro examination of the antioxidant, cytoprotective and anti-inflammatory properties of chrysin-loaded nanofibrous mats for potential wound healing applications
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An in vitro examination of the antioxidant, cytoprotective and anti-inflammatory properties of chrysin-loaded nanofibrous mats for potential wound healing applications

机译:菊花蛋白纳米纤维垫的抗氧化,细胞保护和抗炎特性的体外检查,可用于潜在的伤口愈合应用

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Abstract Chrysin (Chr) is a naturally occurring flavone with a wide spectrum of biological functions including anti-cancer, anti-inflammatory and anti-oxidant properties. Due to the low bioavailability and in vivo stability of Chr at therapeutic levels for wound-healing applications, Chr-loaded PCL/PEG nanofibrous mats were successfully fabricated by optimizing the electrospinning parameters and characterized using FE-SEM and FTIR. Results of MTT showed that Human foreskin fibroblast cells (HFF-1) have more than 80% viability on Chr-loaded nanofibers. The antioxidant activity of Chr-loaded PCL/PEG electrospun nanofibers was demonstrated applying an ORAC assay and by the capability of the nanofibers to maintain the viability of HFF-1 cells on the mats under an oxidative stress condition. The Chr-blended PCL/PEG nanofibrous mats also reduced overexpression of IL-6, IL-1β, TNF-α and excessive production of nitric oxide (NO) in J774A1 following stimulation by lipopolysaccharide (LPS). These results suggest that the proposed natural substance based nanofibrous mats can accelerate wound healing process with cell proliferation, antioxidative and anti-inflammatory activities.
机译:摘要Chrysin(Chr)是一种天然存在的黄酮,具有广泛的生物学功能,包括抗癌,抗炎和抗氧化特性。由于Chr在伤口愈合应用的治疗水平上具有较低的生物利用度和体内稳定性,因此通过优化电纺丝参数并使用FE-SEM和FTIR对Chr负载的PCL / PEG纳米纤维毡进行了成功的制造。 MTT结果表明,人包皮成纤维细胞(HFF-1)在负载Chr的纳米纤维上具有超过80%的活力。应用ORAC分析并通过纳米纤维在氧化应激条件下保持垫子上HFF-1细胞活力的能力证明了负载Chr的PCL / PEG电纺纳米纤维的抗氧化活性。掺有Chr的PCL / PEG纳米纤维垫还减少了脂多糖(LPS)刺激后J774A1中IL-6,IL-1β,TNF-α的过表达和一氧化氮(NO)的过量产生。这些结果表明,所提出的基于天然物质的纳米纤维垫可以通过细胞增殖,抗氧化和消炎活性来加速伤口愈合过程。

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