共递送姜黄素和EGCG脂质体的构建及其对神经炎症的作用
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(西北农林科技大学 食品科学与工程学院, 陕西 杨凌 712100)  收稿日期:20230430 基金项目:国家自然科学基金青年科学基金项目(21808187)。 Foundation: National Natural Science Foundation of China Youth Science Fund Project(21808187).  第一作者:马德雪,女,博士研究生,研究方向为食品营养与健康。 通信作者: 刘夫国,男,教授,博士,主要从事食品化学与营养方面的研究; 刘学波,男,教授,博士,主要从事食品营养与健康方面的研究。

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Construction of Co-Delivered Curcumin and EGCG Liposomes and Their Effects on Neuroinflammation
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(College of Food Science and Engineering,Northwest A&F University, Yangling 712100,China)

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    摘要:

    为克服姜黄素和表没食子儿茶素没食子酸酯(EGCG)两种生物活性成分在稳定性和代谢动力学方面的局限性,进一步发挥其协同抗氧化和抗炎作用,采用薄膜超声法构建共递送姜黄素和EGCG的脂质体。以粒径、PDI和电位为评价指标,分析磷脂与胆固醇质量比、磷脂与吐温80质量比、水合时间及超声时间对脂质体的影响,并通过静电吸附作用对脂质体进行乳铁蛋白和透明质酸修饰。使用脂多糖构建BV2小胶质细胞炎症模型,探讨乳铁蛋白和透明质酸修饰的共递送姜黄素和EGCG的脂质体对神经炎症的改善作用。在磷脂与胆固醇质量比为10∶1,磷脂和吐温80质量比为10∶3,水合时间40min,以及超声时间15min时,成功制备了呈均匀球形、平均粒径为(131.53±0.258)nm的共递送姜黄素和EGCG的脂质体,在乳铁蛋白体积为0.3mL,透明质酸体积为0.5mL时对脂质体进行修饰。实验结果显示,乳铁蛋白和透明质酸修饰的共递送姜黄素和EGCG的脂质体显著提高了姜黄素和EGCG的稳定性和抗氧化特性,抑制了脂多糖诱导的细胞形态的改变,恢复线粒体功能障碍,降低细胞内活性氧的产生,改善了脂多糖诱导的BV2小胶质细胞的炎症作用。研究结果旨在为进一步开发具有神经保护作用的功能食品提供新的思路。

    Abstract:

    To overcome the limitations of two bioactive components, curcumin and epigallocatechin gallate (EGCG), in terms of stability and metabolic kinetics, and to further exploit their synergistic antioxidant and anti-inflammatory effects, liposomes co-delivering curcumin and EGCG were constructed by thin-film sonication. The effects of phospholipid to cholesterol ratio, phospholipid to Tween 80 ratio, hydration time and sonication time on the liposomes were analysed using particle size, PDI and potential as evaluation indexes, and the liposomes were modified with lactoferrin and hyaluronic acid by electrostatic adsorption. A BV2 microglia inflammation model was constructed using lipopolysaccharide (LPS) to explore the interventional effects of liposomes modified with lactoferrin and hyaluronic acid for co-delivering of curcumin and EGCG on neuroinflammation. The results showed that liposomes co-delivering curcumin and EGCG in a uniform spherical shape with an average particle size of (131.53±0.258)nm were successfully prepared at phospholipid to cholesterol ratio of 10∶1, phospholipid to Tween 80 ratio of 10∶3, hydration time of 40min, and ultrasound time of 15min. The liposomes were modified at a volume of 0.3mL of lactoferrin and 0.5mL of hyaluronic acid. The experimental results showed that the liposomes modified with lactoferrin and hyaluronic acid for co-delivery of curcumin and EGCG significantly improved the stability and antioxidant properties of curcumin and EGCG, inhibited LPS-induced alterations in cellular morphology, restored mitochondrial dysfunction, reduced intracellular reactive oxygen species production, and ameliorated the inflammatory effects of LPS-induced BV2 microglia. The results aimed to provide new ideas for further development of functional foods with neuroprotective effects.

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马德雪,闫晓佳,刘夫国,刘学波.共递送姜黄素和EGCG脂质体的构建及其对神经炎症的作用[J].食品科学技术学报,2024,42(2):32-45.

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  • 在线发布日期: 2024-04-21
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