Department of Pharmacy, The Affiliated Hospital, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
Department of Pharmacy, The Affiliated Hospital, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China; School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, China.
Biomed Pharmacother. 2024 Aug;177:117102. doi: 10.1016/j.biopha.2024.117102. Epub 2024 Jul 10.
Paclitaxel (PTX) is a first-line drug for the treatment of lung cancer, but its targeting and therapeutic effect are unsatisfactory. Herein, lung cancer cell (A549) membrane biomimetic PTX-loaded poly (lactic-co-glycolic acid) (PLGA) nanoparticles (AM@PTX-NPs) were constructed to eliminate the shortcomings of PTX. The AM@PTX-NPs were successfully prepared with a high drug loading efficiency (10.90±0.06 %). Moreover, transmission electron microscopy, SDS-PAGE, and western blotting proved that AM@PTX-NPs were spherical nanoparticles camouflaged by the A549 cell membrane. Both in vitro and in vivo assays revealed that the AM@PTX-NPs displayed outstanding targeting capacity due to A549 membrane modification. The cytotoxicity experiment showed that the developed biomimetic formulation was able to effectively reduce the proliferation of A549 cells. Moreover, AM@PTX-NPs exhibited a significant tumor growth inhibition rate (73.00 %) with good safety in the tumor-bearing mice, which was higher than that of the PTX-NPs without A549 membrane coating (37.39 %). Overall, the constructed bioinspired vector could provide a novel platform for the PTX delivery and demonstrated a promising strategy for the targeted cancer treatment.
紫杉醇(PTX)是治疗肺癌的一线药物,但它的靶向性和治疗效果并不理想。在此,构建了肺癌细胞膜仿生载紫杉醇聚乳酸-羟基乙酸共聚物(PLGA)纳米粒(AM@PTX-NPs),以消除 PTX 的缺点。成功制备了载药效率高(10.90±0.06%)的 AM@PTX-NPs。此外,透射电子显微镜、SDS-PAGE 和 Western blot 证明 AM@PTX-NPs 是由 A549 细胞膜伪装的球形纳米颗粒。体外和体内实验均表明,由于 A549 细胞膜的修饰,AM@PTX-NPs 具有出色的靶向能力。细胞毒性实验表明,所开发的仿生制剂能够有效抑制 A549 细胞的增殖。此外,与无 A549 细胞膜包被的 PTX-NPs(37.39%)相比,载药纳米粒在荷瘤小鼠中表现出显著的肿瘤生长抑制率(73.00%),且具有良好的安全性。总的来说,所构建的仿生载体可为 PTX 递药提供新平台,并为靶向癌症治疗提供有前景的策略。
Biomed Pharmacother. 2024-8