重组性疏水性多MBAY装入SPION-Exosome实现持续释放以改善2型糖尿病
Xinyu Zong1,2, Shangying Xiao3, Haishan Xia3
1Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Medical College, Shaoguan University, Shaoguan, 512005, People's Republic of China.
一种新型的,MBAY,被设计为持续释放,改善了胰腺小岛的外-SPION向. 这种增强的输送系统通过促进依赖葡萄糖的胰岛素分泌,有效地治疗小鼠的2型糖尿病 (T2DM).
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 内分泌学 在内分泌学.
背景情况:
- BAY55-9837是一种用于2型糖尿病 (T2DM) 的治疗药物,可刺激依赖葡萄糖的胰岛素分泌.
- 具有磁力 (MF) 的外体超偏磁铁氧化物纳米粒子 (SPIONs) 准胰腺小岛,但快速释放药物限制了疗效.
- 通过将BAY55-9837与CD81融合,开发出一种改性,MBAY,以实现持续释放.
研究的目的:
- 为MBAY设计持续释放并评估其在T2DM治疗中的有效性.
- 开发MBAY-exosome-SPIONs用于针对性地向胰腺小岛输送.
- 在T2DM小鼠模型中评估MBAY-exosome-SPIONs/MF的治疗潜力.
主要方法:
- MBAY被基因改造,并确定其与VPACII的亲和力.
- MBAY被加载到外体细胞中,SPIONs通过转移素-外体细胞受体相互作用被附着.
- 在体外和体内释放,药物动力学概况和治疗效果使用HPLC和T2DM小鼠模型进行了评估.
主要成果:
- 与BAY55-9837相比,MBAY从外体SPION释放的速度较慢,但保持了高的VPACII亲和力.
- MBAY-exosome-SPIONs/MF有效地促进了对葡萄糖升高的胰岛素分泌.
- 在体内研究显示,MBAY-exosome-SPIONs的半衰期延长和改善药理动力学,减轻小鼠T2DM症状.
结论:
- 工程设计的MBAY可以促进治疗剂的持续释放.
- 外体-SPIONs提供有效的胰腺向MBAY交付.
- MBAY-exosome-SPIONs/MF系统在T2DM治疗中显示出显著的治疗潜力.
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