设计和开发新型自组装的甲基醇修饰胆酸结合物,作为对pH响应的依赖胆酸输送器,向纳米颗粒
Dong-Nyeong Lee1, Seong-Bin Yang1, Seho Kweon2
1BK21 Program, Department of Applied Life Science, Konkuk University, Chungju, 27478, Republic of Korea.
Biomaterials
|March 29, 2024
概括
我们开发了新型的甲基醇修饰胆汁酸 (CMBA),可以自组装成纳米粒子. 这些纳米颗粒有效地抑制了依赖于的黄酸转运器 (ASBT),并改善了小鼠的黄酸代谢.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 胃肠病学 胃肠病学
背景情况:
- 基于catechol的生物材料为治疗药物提供生物相容性,但由于胃肠道疾病而面临口服输送的挑战.
- 现有的基于甲醇的口服生物材料受到pH值变化和肠道内的复杂相互作用的限制,阻碍了它们的治疗潜力.
研究的目的:
- 开发一种新的,口服可用的基于甲基的生物材料,用于治疗应用.
- 为了研究一个catechol-modified胆汁酸 (CMBA) 的潜力,作为一个抑制器的依赖胆汁酸转运器 (ASBT).
主要方法:
- 通过与多巴胺结合ursodeoxycholic酸合成CMBA.
- 计算分析 (TRAPP模块,MD模拟) 来评估ASBT结合亲和力和抑制潜力 (Ki).
- 在高脂肪饮食小鼠模型中,在性条件下的CMBA自组装成纳米颗粒的表征和体内药理动力学研究.
主要成果:
- CMBA对ASBT残留物51-55表现出强烈的结合亲和力,抑制常数较低.
- 在性条件下,CMBA自组装成无载体纳米粒子 (240.2 ± 44.2 nm),保持ASBT结合能力.
- 口服CMBA给药导致皮质和肝脏积累,改善胆酸代谢,并在高脂肪饮食小鼠模型中显示治疗效果.
结论:
- 基于甲基的新型,对pH敏感的CMBA纳米颗粒代表了胆酸相关疗法的口服药物输送方面有前途的进步.
- 这项研究强调了CMBA作为ASBT抑制剂的治疗潜力,用于治疗代谢障碍.
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