Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
Teaching Experiment Center, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
J Nanobiotechnology. 2021 Aug 14;19(1):245. doi: 10.1186/s12951-021-00977-3.
BACKGROUND: A red blood cell membrane (RBCm)-derived drug delivery system allows prolonged circulation of an antitumor treatment and overcomes the issue of accelerated blood clearance induced by PEGylation. However, RBCm-derived drug delivery systems are limited by low drug-loading capacities and the lack of tumor-targeting ability. Thus, new designs of RBCm-based delivery systems are needed. RESULTS: Herein, we designed hyaluronic acid (HA)-hybridized RBCm (HA&RBCm)-coated lipid multichambered nanoparticles (HA&RBCm-LCNPs) to remedy the limitations of traditional RBCm drug delivery systems. The inner core co-assembled with phospholipid-regulated glycerol dioleate/water system in HA&RBCm-LCNPs met the required level of blood compatibility for intravenous administration. These newly designed nanocarriers had a honeycomb structure with abundant spaces that efficiently encapsulated paclitaxel and IR780 for photochemotherapy. The HA&RBCm coating allowed the nanocarriers to overcome the reticuloendothelial system barrier and enhanced the nanocarriers specificity to A549 cells with high levels of CD44. These properties enhanced the combinatorial antitumor effects of paclitaxel and IR780 associated with microtubule destruction and the mitochondrial apoptotic pathway. CONCLUSIONS: The multifunctional HA&RBCm-LCNPs we designed expanded the functionality of RBCm and resulted in a vehicle for safe and efficient antitumor treatment.
背景:红细胞膜(RBCm)衍生的药物递送系统可延长抗肿瘤治疗的循环时间,并克服 PEG 化诱导的血液清除加速问题。然而,RBCm 衍生的药物递送系统受到载药能力低和缺乏肿瘤靶向能力的限制。因此,需要新的 RBCm 基递送系统设计。
结果:在此,我们设计了透明质酸(HA)杂交的 RBCm(HA&RBCm)包被的脂质多腔纳米颗粒(HA&RBCm-LCNPs),以弥补传统 RBCm 药物递送系统的局限性。HA&RBCm-LCNPs 中的内芯与磷脂调节的甘油二油酸酯/水体系共同组装,达到了静脉注射所需的血液相容性水平。这些新设计的纳米载体具有丰富空间的蜂窝结构,可有效包封紫杉醇和 IR780 用于光化疗。HA&RBCm 涂层使纳米载体能够克服网状内皮系统屏障,并增强纳米载体对高表达 CD44 的 A549 细胞的特异性。这些特性增强了紫杉醇和 IR780 的联合抗肿瘤作用,与微管破坏和线粒体凋亡途径有关。
结论:我们设计的多功能 HA&RBCm-LCNPs 扩展了 RBCm 的功能,为安全有效的抗肿瘤治疗提供了一种载体。
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