通过设计PUFA功能化基于脂质的纳米载体来克服BBB/BBTB的生物障碍,用于质母细胞瘤向治疗
Tamara Zwain1, Jane Elizabeth Alder2, Suha Zwayen3
1School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom; Biomedical Evidence based Transdisciplinary (BEST) Health Research Institute, University of Central Lancashire, Preston PR1 2HE, United Kingdom.
Biomaterials advances
|November 17, 2023
概括
新型纳米结构脂质载体 (NLCs) 携带多塞 (DTX) 被用玛-烯酸 (GLA) 和α-烯酸 (ALA) 功能化用于质母细胞瘤 (GB) 治疗. 这些NLC有效地穿越了血脑屏障 (BBB),并增强了向GB细胞的药物输送.
科学领域:
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
- 在瘤学瘤学.
背景情况:
- 质母细胞瘤 (GB) 治疗面临的挑战是由于血脑屏障 (BBB) 和耐药性.
- 针对性地向脑瘤提供化疗药物仍然是一个重大障碍.
研究的目的:
- 开发和评估带附着的纳米结构脂质载体 (NLCs),用于将多塞 (DTX) 输送到质母细胞瘤 (GB).
- 为了研究玛-烯酸 (GLA) 和α-烯酸 (ALA) 功能化的DTX-NLCs在克服生物障碍和增强抗癌活性方面的疗效.
主要方法:
- 合成和描述GLA和ALA结合的DTX载荷的NLCs.
- 使用3DBBBB模型进行BBB透的体外评估.
- 使用3D血脑瘤屏障 (BBTB) 模型对不朽化和患者衍生的GB细胞进行细胞吸收的评估.
- 通过IC50值和3D瘤球体测定来确定细胞毒性和抗癌活性.
主要成果:
- GLA-和ALA-DTX-NLCs的粒子大小小小于160nm,PDI小于0.29,表面电荷为负.
- 通过FTIR和表面电荷分析证实了成功的联结.
- 配方表现出显著的BBB透和增强GB细胞的吸收,ALA-DTX-NLC在患者衍生细胞中表现出卓越的性能.
- ALA-DTX-NLCs和GLA-DTX-NLCs对来自患者的GB细胞的DTX活性分别高出13.9倍和6.8倍.
结论:
- 用GLA和ALA对DTX-NLC的表面功能化有效地增强了BBB透和GB细胞吸收.
- 与GLA-DTX-NLC相比,ALA-DTX-NLC在质母细胞瘤治疗中表现出更高的疗效.
- 这些新的NLC配方有望在质母细胞瘤治疗中克服生物障碍.
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