配体修饰的同源靶向癌细胞膜仿生纳米结构脂质载体用于脑胶质瘤治疗。

Ligand-modified homologous targeted cancer cell membrane biomimetic nanostructured lipid carriers for glioma therapy.

机构信息

School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People's Republic of China.

State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, People's Republic of China.

出版信息

Drug Deliv. 2021 Dec;28(1):2241-2255. doi: 10.1080/10717544.2021.1992038.

Abstract

The main treatment measure currently used for glioma treatment is chemotherapy; the biological barrier of solid tumors hinders the deep penetration of nanomedicines and limits anticancer therapy. Furthermore, the poor solubility of many chemotherapeutic drugs limits the efficacy of antitumor drugs. Therefore, improving the solubility of chemotherapeutic agents and drug delivery to tumor tissues through the blood-brain barrier (BBB) and blood-brain tumor barrier (BBTB) are major challenges in glioma treatment. Nanostructured lipid carriers (NLCs) have high drug loading capacity, high stability, and high safety; moreover, they can effectively improve the solubility of insoluble drugs. Therefore, in this study, we used solvent volatilization and ultrasonic melting methods to prepare dihydroartemisinin nanostructured lipid carrier (DHA-NLC). We further used the glioma C6 cancer cell (CC) membrane to encapsulate DHA-NLC owing to the homologous targeting mechanism of the CC membrane; however, the targeting ability of the CC membrane was weak. We accordingly used targeting ligands for modification, and developed a bionanostructured lipid carrier with BBB and BBTB penetration and tumor targeting abilities. The results showed that DHA-loaded NGR/CCNLC (asparagine-glycine-arginine, NGR) was highly targeted, could penetrate the BBB and BBTB, and showed good anti-tumor effects both and , which could effectively prolong the survival time of tumor-bearing mice. Thus, the use of DHA-loaded NGR/CCNLC is an effective strategy for glioma treatment and has the potential to treat glioma.

摘要

目前用于治疗脑胶质瘤的主要治疗措施是化疗;实体瘤的生物屏障阻碍了纳米药物的深入渗透,限制了抗癌治疗。此外,许多化疗药物的溶解度较差限制了抗肿瘤药物的疗效。因此,提高化疗药物的溶解度并通过血脑屏障(BBB)和血脑肿瘤屏障(BBTB)将药物递送到肿瘤组织是脑胶质瘤治疗的主要挑战。纳米结构脂质载体(NLCs)具有高载药量、高稳定性和高安全性;此外,它们可以有效提高难溶性药物的溶解度。因此,在本研究中,我们使用溶剂挥发和超声熔融法制备二氢青蒿素纳米结构脂质载体(DHA-NLC)。我们进一步利用 C6 神经胶质瘤细胞膜(CC)对 DHA-NLC 进行包封,这是由于 CC 膜的同源靶向机制;然而,CC 膜的靶向能力较弱。因此,我们使用靶向配体进行修饰,并开发了一种具有 BBB 和 BBTB 穿透能力和肿瘤靶向能力的仿生纳米结构脂质载体。结果表明,载有 DHA 的 NGR/CCNLC(天冬酰胺-甘氨酸-精氨酸,NGR)具有高度靶向性,能够穿透 BBB 和 BBTB,并具有良好的抗肿瘤作用,既能延长荷瘤小鼠的生存时间。因此,载有 DHA 的 NGR/CCNLC 的应用是治疗脑胶质瘤的有效策略,有治疗脑胶质瘤的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcd7/8530486/2a780d26c2c8/IDRD_A_1992038_F0001_C.jpg

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