与中性粒细胞的相互相互作用促进了脂质体的皮肤积累
Tianhao Ding1, Yang Wang2, Yanchun Meng3
1Department of Pharmacology, School of Basic Medical Sciences & Department of Pharmacy, Shanghai Pudong Hospital, Fudan University, Shanghai 200032, P. R. China.
ACS nano
|July 1, 2024
概括
由于中性粒细胞相互作用,PEGylated脂质体 doxorubicin 引起皮肤毒性. 抑制补体激活或阻断脂质体充电可以降低这种毒性,提供新的治疗策略.
科学领域:
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
- 纳米医学是一种纳米医学.
背景情况:
- 基化脂质体 doxorubicin (sLip/DOX) 用于癌症,但导致剂量限制的皮肤毒性.
- 这些毒性源于sLip/DOX在皮肤中积累,其途径尚不清楚.
- 目前缺乏针对这些皮肤毒性的干预措施.
研究的目的:
- 阐明导致皮肤毒性的sLip/DOX的运输途径.
- 确定潜在的治疗点,以减轻sLip/DOX引起的皮肤不良影响.
主要方法:
- 研究了脂质体和中性粒细胞之间的相互作用.
- 利用补充受体3 (CD11b/CD18) 和补充成分C3 (iC3b) 在中性粒细胞的脂质体捕获中.
- 使用补充抑制 (CRIg-L-FH) 和mPEG-DSPE电荷阻断,以评估对脂质体吸收和积累的影响.
主要成果:
- 中性粒细胞通过补充受体3与脂质体上沉积的iC3b结合,捕获sLip/DOX.
- 脂质体吸收激活中性粒细胞,增加CD11b的表达和增强迁移.
- 补充抑制和阻断脂质体表面电荷显著降低了中性粒细胞的吸收和皮肤积累.
结论:
- 中性粒细胞介导的扩散是sLip/DOX皮肤积累的关键途径.
- 向补体激活或脂质体表面电荷为减少sLip/DOX相关的皮肤毒性提供了有希望的策略.
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