科尔奇辛糖化影响细胞毒性和作用机制
Aqeel Ahmed1, Noël R Peters, Megan K Fitzgerald
1Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, USA.
Journal of the American Chemical Society
|November 2, 2006
概括
研究人员创建了一个多样化的糖改性化合物库. 糖基化改变了药物的效力和特异性,一些化合物稳定了素聚合,为治疗提供了新的途径.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 化学生物学 化学生物学
背景情况:
- 科尔奇辛是一种破坏稳定的天然产品,使蛋白聚合变化不稳定.
- 糖基化是一种常见的修改,可以改变天然产品的特性.
- 新葡萄糖随机化是一种创建多种类型的糖化化合物库的技术.
研究的目的:
- 为了合成一种含甲氧胺附加的胆固醇衍生物的甘氨酸随机图书馆.
- 为了评估合成图书馆的细胞毒性和蛋白聚合活性.
- 为了探索糖化对胆固醇生物活性的影响.
主要方法:
- 70种未受保护的降解糖与含有甲氧胺的菌素的反应.
- 创建一个58个成员的糖类随机图书馆.
- 高通量细胞毒性试验. 高通量细胞毒性试验.
- 在实验室中进行氨酸聚合试验.
主要成果:
- 一个58个成员的糖类随机图书馆成功地产生了.
- 糖基化调节了化合物的特异性和强度.
- 几位图书馆成员在体外稳定了氨酸的聚合,与母氨酸不同.
- 一些糖基化化合物表现出类似纳克索的氨酸稳定活性.
结论:
- 新甘氨基随机化可以扩展到含氨酸的支架.
- 糖化非糖化天然产品可以产生具有新生物活性的化合物.
- 合成的图书馆为开发新的突素向剂提供了潜在的线索.
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