Baghirova Lala, Kaya Tilki Elif, Öztürk A Alper
Graduate School of Health Sciences, Faculty of Pharmacy, Department of Cosmetology, Anadolu University, 26470Eskişehir, Turkey.
Faculty of Pharmacy, Department of Pharmacology, Anadolu University, 26470Eskişehir, Turkey.
ACS Omega. 2023 Jan 6;8(2):2658-2668. doi: 10.1021/acsomega.2c07232. eCollection 2023 Jan 17.
In this study, vitamin A palmitate (VAP)-loaded poly(lactic--glycolic acid) (PLGA)/chitosan-coated PLGA nanoparticle (NP) systems were prepared by the nanoprecipitation technique. The prepared systems were characterized by parameters such as particle size, polydispersity index (PDI), ζ-potential, encapsulation efficiency, dissolution, and release kinetic study. Then, the cytotoxicity and wound healing profiles of the designed NP formulations in HaCaT (human keratinocyte skin cell lines) were determined. The particle size of VAP-loaded NPs was obtained between 196.33 ± 0.65 and 669.23 ± 5.49 nm. PDI data proved that all NPs were prepared as high quality and monodisperse. While negative ζ-potential values of Blank-NP-1 and NP-1 encoded PLGA NP formulations were obtained, positive ζ-potential was obtained in chitosan-coated NPs. release studies of NPs observed rapid dissolution in the first 1-6 h, but prolonged dissolution of VAP after rapid dissolution. As a result of cell culture studies and wound healing activity studies, it was determined that NP-7 was the most effective. It was thought that the reason for this was that the NP-7 coded formulation was a chitosan-coated PLGA nanoparticle with the smallest particle size, and it was concluded that the efficiency of VAP was increased with its nanoparticle structure. This study demonstrated the similar wound healing effects of VAP-loaded nanoparticle systems, in particular NP-7, which increases keratinocyte cell proliferation at lower concentrations (10 μg·mL) than vitamin A alone (100 μg·mL). VAP-loaded nanocarriers that can be used in the pharmaceutical industry have been successfully produced and the results obtained have been evaluated as promising for this industry.
在本研究中,采用纳米沉淀技术制备了负载棕榈酸维生素A(VAP)的聚乳酸-乙醇酸共聚物(PLGA)/壳聚糖包被的PLGA纳米颗粒(NP)系统。通过粒径、多分散指数(PDI)、ζ电位、包封率、溶出度和释放动力学研究等参数对所制备的系统进行了表征。然后,测定了所设计的NP制剂在HaCaT(人角质形成细胞皮肤细胞系)中的细胞毒性和伤口愈合情况。负载VAP的NP的粒径在196.33±0.65至669.23±5.49nm之间。PDI数据证明所有NP均制备成高质量且单分散的。虽然空白NP-1和NP-1编码的PLGA NP制剂的ζ电位值为负,但壳聚糖包被的NP的ζ电位为正。NP的释放研究表明,在前1-6小时迅速溶解,但在迅速溶解后VAP的溶解时间延长。细胞培养研究和伤口愈合活性研究的结果表明,NP-7是最有效的。认为其原因是NP-7编码制剂是粒径最小的壳聚糖包被的PLGA纳米颗粒,得出结论:VAP的效率因其纳米颗粒结构而提高。本研究证明了负载VAP的纳米颗粒系统,特别是NP-7,在较低浓度(10μg·mL)下比单独的维生素A(100μg·mL)增加角质形成细胞增殖具有相似的伤口愈合效果。已成功生产出可用于制药行业的负载VAP的纳米载体,所获得的结果对该行业具有前景。