与人血清白蛋白复合的1,18- 八度甘酸- 帕克利塔塞尔的抗瘤活性
Cassandra E Callmann1,2, Clare L M LeGuyader1, Spencer T Burton2
1Department of Chemistry & Biochemistry , University of California San Diego , La Jolla , California 92093 , United States.
Journal of the American Chemical Society
|July 19, 2019
概括
一种新的帕克利塔塞尔 (PTX) 前药物ODDA-PTX利用人体血清白蛋白 (HSA) 来改善药物输送. 这种结合白蛋白的策略在临床前癌症模型中提高了抗瘤功效和耐受性.
科学领域:
- 医学化学
- 药理学
- 癌症学
背景情况:
- 帕克利塔塞尔 (PTX) 是一种强效的化疗剂,具有有限的溶解性和副作用.
- 目前的配方如Cremophor EL (crPTX) 和纳米颗粒素结合 (nab) - 帕克利塔塞尔 (Abraxane) 有其局限性.
- 利用天然的药物载体相互作用,例如脂肪酸和白蛋白之间的相互作用, 是一个有前途的策略.
研究的目的:
- 设计,合成和评估一种与18碳α,ω-二碳酸结合的新型PTX前药物.
- 研究ODDA-PTX与人血清白蛋白 (HSA) 的非共价复合形成.
- 在体内评估ODDA-PTX的抗瘤活性和药物动力学特征.
主要方法:
- 通过结合成1,18-octadecanedioic acid-paclitaxel (ODDA-PTX) 的方法
- 对ODDA-PTX与人血清白蛋白 (HSA) 的结合的特征.
- 在小鼠异种移植模型中评估药理动力学,最大耐受剂量和体内抗瘤功效.
主要成果:
- 通过模仿长链脂肪酸 (LCFA) 的结合,ODDA-PTX易于与HSA形成非共价复合体.
- ODDA-PTX的终端碳酸与HSA发生有利的静电相互作用.
- 与crPTX和Abraxane相比,ODDA- PTX显示出改善的药理动力学,更高的最大耐受剂量和更高的抗瘤功效.
结论:
- ODDA- PTX是一种新的白蛋白结合前药物策略,用于帕克利塔塞尔的输送.
- 这种方法通过利用天然的白蛋白相互作用来提高药物的有效性和耐受性.
- ODDA-PTX显示为各种癌症的改进治疗选择.
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