Dual-grafted dextran based nanomicelles: Higher antioxidant, anti-inflammatory and cellular uptake efficiency for quercetin
文献类型: 外文期刊
第一作者: He, Zuyu
作者: He, Zuyu;Liu, Yunhao;Wang, Hui;Li, Puwang;Wang, Chao;Zhou, Chuang;Song, Shuhui;Chen, Shaohua;Yang, Ziming;Wang, Hui;Chen, Yu;Yang, Ziming;Huang, Guocong
作者机构:
关键词: Dextran; Nanomicelles; Antioxidant and anti-inflammatory
期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:8.2; 五年影响因子:7.8 )
ISSN: 0141-8130
年卷期: 2023 年 224 卷
页码:
收录情况: SCI
摘要: Quercetin (QCT) has antioxidant, anti-inflammatory, anti-tumor and other important pharmacological activities, but the poor water solubility limits its application. In this work, the amphiphilic dextran (ADEX) was prepared by grafting L-cysteine and octadecylamine onto carboxymethyl dextran with the grafting rate of 21.29 % and 19.35 %. Then, the QCT-loaded nanomicelles (QNMs) were prepared by using ADEX as wall material and the QCT as core material via ultrasonic self-assembly method. The particle size and zeta potential of QNMs were 372 nm and 31.4 mV. Under simulated gastric and simulated intestinal fluids, the cumulative release QNMs were 37.54 % and 52.13 % within 180 min, and the QNMs showed better stability in simulated gastric fluid. The QNMs showed significantly better PTIO center dot, (OH)-O-center dot and O-center dot(2)- scavenging activities than QCT. In addition, QNMs could effectively down-regulate the expression of pro-inflammatory cytokines and promoted the expression of anti-inflammatory cytokine. The cellular uptake results proved that the QNMs were more easily absorbed by cells than free QCT, indicating that the nano-encapsulation procedure effectively improved the uptake efficiency of QCT by cells.
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