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Construction a Long-Circulating Delivery System of Liposomal Curcumin by Coating Albumin.
ACS Omega ( IF 3.7 ) Pub Date : 2020-07-02 , DOI: 10.1021/acsomega.0c00930
Xue-Qin Wei 1 , Kai Ba 1
Affiliation  

Although the bioavailability and stability of curcumin can be greatly improved by liposomes encapsulation, its application is still limited due to the short circulating time. In this present work, we aim to construct a long-circulating delivery system of liposomal curcumin (Cur-Lips) by coating bovine serum albumin (BSA), namely, BSA-coated liposomal curcumin (BSA-Cur-Lips). The effects of coating albumin on the physicochemical properties of Cur-Lips were investigated. It was found that BSA-Cur-Lips was more spherical, more homogeneous in size, and significantly larger than Cur-Lips. Combining sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), Coomassie bright blue staining, and X-ray photoelectron spectroscopy analysis (XPS), we confirmed that albumin molecules were stably located on the surface of BSA-Cur-Lips. In addition, the impacts of the coating albumin on the Cur-Lips release and phagocytosis by mouse macrophages Raw264.7 in vitro were investigated. We found that no significant initial burst drug release effect was observed for both Cur-Lips and BSA-Cur-Lips and the presence of albumin can enhance the liposome structure stability and slow down the release of Cur. More importantly, the macrophage phagocytosis of Cur-Lips was significantly reduced after coating albumin. In conclusion, coating albumin is a promising approach for developing a long-circulating delivery system of liposomal curcumin, and its properties including low phagocytosis, slow drug release, enhanced stability, and nontoxicity give this system great prospects for practical use.

中文翻译:

包衣白蛋白构建脂质体姜黄素长循环输送系统。

尽管姜黄素的生物利用度和稳定性可以通过脂质体的封装大大提高,但由于循环时间短,其应用仍然受到限制。在本工作中,我们旨在通过涂覆牛血清白蛋白(BSA),即BSA涂层脂质体姜黄素(BSA-Cur-Lips),构建脂质体姜黄素(Cur-Lips)的长循环递送系统。研究了包被白蛋白对Cur-Lips理化性质的影响。发现BSA-Cur-Lips比Cur-Lips更球形,尺寸更均匀并且明显更大。结合十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE),考马斯亮蓝染色和X射线光电子能谱分析(XPS),我们确认白蛋白分子稳定地位于BSA-Cur-Lips表面。此外,体外进行了调查。我们发现,对于Cur-Lips和BSA-Cur-Lips均未观察到明显的初始爆发药物释放作用,并且白蛋白的存在可以增强脂质体的结构稳定性并减慢Cur的释放。更重要的是,包被白蛋白后,Cur-Lips的巨噬细胞吞噬作用显着降低。总之,包被白蛋白是开发脂质体姜黄素长循环输送系统的一种有前途的方法,其特性包括低吞噬作用,缓慢的药物释放,增强的稳定性和无毒性,使该系统具有广阔的实际应用前景。
更新日期:2020-07-14
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