Neuronal growth promoting sesquiterpene–neolignans; syntheses and biological studies
作者:Xu Cheng、Nicole Harzdorf、Zin Khaing、Danby Kang、Andrew M. Camelio、Travis Shaw、Christine E. Schmidt、Dionicio Siegel
DOI:10.1039/c1ob06363d
日期:——
The use of small molecules that can promote neuronal growth represents a promising approach to regenerative science. Along these lines we have developed separate short or modular syntheses of the natural products caryolanemagnolol and clovanemagnolol, small molecules previously shown to promote neuronal growth and induce choline acetyltransferase activity. The postulated biosynthetic pathways, potentially leading to the assembly of these molecules in nature, have guided the laboratory syntheses, allowing the preparation of both natural products in as few as two steps. With synthetic access to the compounds as single enantiomers we have examined clovanemagnolol's ability to promote the growth of embryonic hippocampal and cortical neurons. Clovanemagnolol has been shown to be a potent neurotrophic agent, promoting neuronal growth at concentrations of 10 nM.
使用能促进神经元生长的小分子是再生科学的一种前景广阔的方法。根据这一思路,我们开发了天然产物卡利叶马钱子醇和氯凡马钱子醇的短合成或模块化合成,这些小分子之前已被证明能促进神经元生长并诱导胆碱乙酰转移酶活性。假定的生物合成途径可能导致这些分子在自然界中的组装,这些途径为实验室合成提供了指导,使这两种天然产物的制备只需两个步骤。通过合成这两种化合物的单一对映体,我们研究了氯凡马诺醇促进胚胎海马和大脑皮层神经元生长的能力。研究表明,氯凡诺洛尔是一种有效的神经营养剂,在 10 nM 的浓度下就能促进神经元的生长。