带有2-AG和向骨髓的PCL纳米颗粒作为血造细胞系调动纳米平台
Sevil Köse1,2, Cem Varan3, Selin Önen4
1Faculty of Medicine, Department of Plastic, Reconstructive and Aesthetic Surgery, Akdeniz University, Antalya, 07070, Turkey. sevilkose@akdeniz.edu.tr.
Stem cell research & therapy
|October 1, 2024
概括
一种新型的纳米粒子系统有效地调动造血干细胞 (HSCs) 进行移植. 这种带有2-AG载荷的聚烯酸 (PCL) 纳米粒子向骨髓,显示了改善高基细胞移植协议的前景.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 血液学 血液学 血液学
背景情况:
- 目前的造血干细胞 (HSC) 调动剂对于许多接受移植的患者来说是不够的.
- 内分泌大麻素 (eCB) 配体显示出HSC迁移的潜力,但缺乏治疗稳定性.
- 这项研究研究了一种用于针对性HSC动员的新型纳米粒子系统.
研究的目的:
- 开发和验证一个带有2-阿拉基多诺伊尔糖 (2-AG) 载荷的聚烯酸 (PCL) 纳米粒子输送系统.
- 通过脂素 (Ps) 设计纳米粒子,通过脂素 (Ps) 积极准骨髓 (BM).
- 评估该系统在HSC动员方面的治疗潜力.
主要方法:
- 聚卡普罗拉克 (PCL) 纳米颗粒使用乳液蒸发制备,并通过SEM和Zetasizer进行特征.
- 使用LC-MS/MS.确定封装效率和2-AG释放概况.
- 使用跨井试验评估HSC和单细胞迁移,其大麻素受体 (CBR) 表达通过流细胞计证实.
主要成果:
- PCL纳米粒子 (140-225nm) 与Ps和2-AG的多分散性增加,表面电荷为-25到-50mV.
- 纳米颗粒在8小时内释放了高达36%的2-AG,并没有影响细胞活力.
- 表达CB1R和CB2R的HSC和单细胞向1μM的2-AG-Ps-PCL转移,这表明通过CBR激进作用有效调动.
结论:
- 一个新的2-AG装载PCL纳米粒子系统成功生成和验证.
- 这个系统作为一个稳定,持久和有针对性的动员代理HSCs.
- 纳米粒子系统是HSC移植协议的有希望的候选治疗方法,正在等待进一步的临床前和临床试验.
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