Hyaluronan/Poly-L-lysine/Berberine Nanogels for Impaired Wound Healing.

Hyaluronan/Poly-L-lysine/Berberine Nanogels for Impaired Wound Healing.
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DOI:
10.3390/pharmaceutics13010034
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发表时间:
2020-12-28
期刊:
影响因子:
5.4
通讯作者:
Musumeci T
Musumeci T
中科院分区:
医学2区
文献类型:
--
作者:
Amato G;Grimaudo MA;Alvarez-Lorenzo C;Concheiro A;Carbone C;Bonaccorso A;Puglisi G;Musumeci T

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在某些病症(例如糖尿病或癌症)存在的情况下,生理伤口愈合过程可能会延迟。从这个角度来看,本研究的目的是设计一种适用于伤口治疗的透明质酸、聚-L-赖氨酸和小檗碱的新型纳米凝胶平台。在第一次配方筛选后选择了两种不同的纳米凝胶配方。它们是通过将 2 mg/mL 透明质酸水溶液(200 或 700 kDa)滴加到 1.25 mg/mL 聚-L-赖氨酸水溶液中来制备的。用 200 kDa HA 配制的空白纳米凝胶在冷冻干燥后结果稳定,尺寸、多分散指数和 zeta 电位分别为 263.6 ± 13.1 nm、0.323 ± 0.029 和 32.7 ± 3.5 mV。空白纳米凝胶和负载小檗碱的纳米凝胶均显示出圆形结构。负载的纳米凝胶在 45 分钟内释放了近 50% 的负载小檗碱,而剩余的 50% 在体外长达 24 小时才释放。空白纳米凝胶和负载小檗碱的纳米凝胶均能够在 42 小时内完全闭合成纤维细胞间隙。
Physiological wound healing process can be delayed in the presence of certain pathologies, such as diabetes or cancer. In this perspective, the aim of this study was to design a new nanogel platform of hyaluronan, poly-L-lysine and berberine suitable for wound treatment. Two different nanogel formulations were selected after a first formulation screening. They were prepared by adding dropwise 2 mg/mL hyaluronan aqueous solution (200 or 700 kDa) to 1.25 mg/mL poly-L-lysine aqueous solution. Blank nanogels formulated with 200 kDa HA resulted stable after freeze-drying with dimensions, polydispersity index and zeta potential of 263.6 ± 13.1 nm, 0.323 ± 0.029 and 32.7 ± 3.5 mV, respectively. Both blank and berberine-loaded nanogels showed rounded-shape structures. Loaded nanogels released nearly 50% of loaded berberine within 45 min, whereas the remaining 50% was released up to 24 h in vitro. Both, blank and berberine-loaded nanogels were able to completely close the fibroblasts gap in 42 h.
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