Department of Radiation Oncology, LongHua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China.
J Biomater Sci Polym Ed. 2024 Jun;35(9):1323-1342. doi: 10.1080/09205063.2024.2328421. Epub 2024 Mar 26.
Traditional methods of treating lung cancer have not been very effective, contributing to the disease's high incidence and death rate. As a result, Fn/Tn-PLGA NPs, a novel directed fucoidan and trabectedin complex loaded PLGA nanoparticle, were produced to investigate the role of developing therapeutic strategies for NSCLC and A549 cell lines. Quantitative real-time polymerase chain reaction was used to examine protein expression and mRNA expression, respectively. Protein activity was knocked down using specific inhibitors and short disrupting RNA transfection. Lastly, cancer cell lines H1299 and A549 were subjected to an cytotoxicity experiment. Commercial assays were used to assess the levels of cell viability, ROS and proliferation found that Fn/Tn-PLGA NPs effectively killed lung cancer cells. To examine cell death, annexin flow cytometry was employed. In addition, a scratch-wound assay was conducted to assess the migration effects of Fn/Tn-PLGA NPs in a laboratory setting. Finally, PLGA NPs covered with a mix of fucoidan and trabectedin could be a good vehicle for targeting cancerous tissues with chemotherapeutic drugs.
传统的肺癌治疗方法效果并不显著,导致肺癌发病率和死亡率居高不下。因此,我们制备了新型导向岩藻聚糖和 trabectedin 复合物负载 PLGA 纳米粒子 Fn/Tn-PLGA NPs,以研究开发治疗非小细胞肺癌和 A549 细胞系的治疗策略。分别采用定量实时聚合酶链反应检测蛋白表达和 mRNA 表达。使用特异性抑制剂和短干扰 RNA 转染敲低蛋白活性。最后,对 H1299 和 A549 癌细胞系进行细胞毒性实验。商业检测试剂盒用于评估细胞活力、ROS 和增殖水平,结果表明 Fn/Tn-PLGA NPs 能有效杀死肺癌细胞。通过流式细胞术检测 Annexin 评估细胞死亡。此外,划痕实验评估 Fn/Tn-PLGA NPs 在实验室条件下的迁移作用。最后,PLGA NPs 包裹岩藻聚糖和 trabectedin 的混合物可以作为一种将化疗药物靶向癌细胞的良好载体。