原生和纳米配制的天生的防御调节剂1002的生物分布
Tullio V F Esposito1, Colin Blackadar1, Lan Wu1,2
1Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada.
Molecular pharmaceutics
|May 2, 2024
概括
研究了先天性防御调节器-1002 (IDR-1002) 的生物分布. 用高分支多糖醇 (HPG) 聚合物配制IDR-1002提高了生物相容性和循环,显示出克服的药理动力学挑战的潜力.
科学领域:
- 药理学 药理学是指药理学的学科.
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
背景情况:
- 天生的防御调节器-1002 (IDR-1002) 是一种合成,具有已知的免疫调节和抗菌膜特性.
- 它在感染和炎症模型中的有效性已经确立,但其体内药物动力学概况在很大程度上仍未被描述.
研究的目的:
- 综合评估IDR-1002在活体中的生物分布,吸收,分布和分泌.
- 为了评估不同给药途径和剂量对IDR-1002行为的影响.
- 研究高分支多糖醇 (HPG) 聚合物配方的潜力,以提高IDR-1002的药理动力学和生物相容性.
主要方法:
- 用-67进行放射性标记的IDR-1002用于核追踪,以追踪生物分布.
- 该通过静脉,腹膜,皮下和肌内途径在各种剂量水平上进行了注射.
- IDR-1002用HPG聚合物以不同的与聚合物比率 (5:1和10:1) 配制,并评估了体稳定性,生物活性和红细胞溶解.
主要成果:
- 在皮下和腹腔内剂量下,IDR-1002耐受性良好,但高剂量显示吸收和沉延迟.
- 低内剂量被快速吸收,而高剂量是致命的;静脉注射导致低剂量的血液快速清理,高剂量的肺积累有毒性.
- 用HPG配制的IDR-1002结构在体上稳定,保持活性,并减少红细胞溶解. 5:1结构显示血液循环良好,而较高的负载导致网状内皮系统的快速清除.
结论:
- IDR-1002表现出路径和剂量依赖的药理动力学和毒性.
- HPG聚合物配方是改善IDR-1002生物相容性和延长其循环的有希望的策略,解决了治疗常见的挑战.
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