负载积雪草苷的同轴静电纺纳米纤维的制备及其对深Ⅱ度烧伤创面的影响

Preparation of asiaticoside-loaded coaxially electrospinning nanofibers and their effect on deep partial-thickness burn injury.

作者信息

Zhu Lifei, Liu Xiaoyan, Du Lina, Jin Yiguang

机构信息

Department of Graduates, Anhui Medical University, Hefei 230001, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China.

Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China.

出版信息

Biomed Pharmacother. 2016 Oct;83:33-40. doi: 10.1016/j.biopha.2016.06.016. Epub 2016 Jun 20.

Abstract

Sodium alginate and chitosan were in favor of wound healing. However, the two polymers were not compatible in one formulation due to the electrostatic interaction. Coaxially electrospinning technology could make two or more noneletrospun polymers to be electrospun in independent core and shell layer. Asiaticoside-loaded coaxially electrospinning nanofibers of alginate, polyvinyl alcohol (PVA) and chitosan (alginate/PVA/chitosan) were prepared and evaluated. Morphologies and microstructure of nanofibers were observed with scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Drug release in vitro of coaxial nanofibers was also evaluated. Deep partial-thickness burn injury were established and used to evaluate the improved healing effect of asiaticoside-loaded coaxial nanofibers. Drug-loaded coaxial nanofibers prepared with the optimized formulations and technologies had the obvious core-shell structure. Coaxial nanofibers showed faster drug release profiles in vitro and this facilitated wound healing. Its healing effect on rats with deep partial-thickness burn injury was also significant based on morphology, wound healing ratio, and pathological sections. Positive expression of vascular endothelial growth factor (VEGF), cluster of differentiation 31 (CD31), and proliferating cell nuclear antigen (PCNA), and down regulation of tumor necrosis factor (TNF) and interleukin-6 (IL-6) also validated the improved effect of wound healing. In general, the asiaticoside-loaded coaxial nanofibers had obvious core-shell structure with smooth surface and uniform diameter. Its healing effect on deep partial-thickness burn injury of rats was obvious. Asiaticoside-loaded coaxial nanofibers provide a novel promising option for treatment of deep partial-thickness burn injury.

摘要

海藻酸钠和壳聚糖有利于伤口愈合。然而,由于静电相互作用,这两种聚合物在一种配方中不相容。同轴电纺技术可以使两种或更多种非电纺聚合物在独立的核层和壳层中进行电纺。制备并评估了负载积雪草苷的海藻酸钠、聚乙烯醇(PVA)和壳聚糖同轴电纺纳米纤维(海藻酸钠/PVA/壳聚糖)。用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察纳米纤维的形态和微观结构。还评估了同轴纳米纤维的体外药物释放情况。建立了深Ⅱ度烧伤模型,用于评估负载积雪草苷的同轴纳米纤维的促进愈合效果。采用优化的配方和技术制备的载药同轴纳米纤维具有明显的核壳结构。同轴纳米纤维在体外显示出更快的药物释放曲线,这促进了伤口愈合。基于形态学、伤口愈合率和病理切片,其对深Ⅱ度烧伤大鼠的愈合效果也很显著。血管内皮生长因子(VEGF)、分化簇31(CD31)和增殖细胞核抗原(PCNA)的阳性表达,以及肿瘤坏死因子(TNF)和白细胞介素-6(IL-6)的下调也证实了伤口愈合效果的改善。总体而言,负载积雪草苷的同轴纳米纤维具有明显的核壳结构,表面光滑,直径均匀。其对大鼠深Ⅱ度烧伤的愈合效果明显。负载积雪草苷的同轴纳米纤维为深Ⅱ度烧伤的治疗提供了一种新的有前景的选择。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索