Guanidiniocarbonylpyrrole-Aryl Derivatives: Structure Tuning for Spectrophotometric Recognition of Specific DNA and RNA Sequences and for Antiproliferative Activity
作者:Laura Hernandez-Folgado、Domagoj Baretić、Ivo Piantanida、Marko Marjanović、Marijeta Kralj、Thomas Rehm、Carsten Schmuck
DOI:10.1002/chem.200901999
日期:2010.3.8
positive charges present at different pH values. The compounds and their interactions with DNA and RNA were studied by UV/Vis, fluorescence and CD spectroscopy. Antiproliferative activities against human tumour cell lines were also determined. Our studies show that efficient interaction with, for example, DNA requires a significantly large aromatic ring (pyrene) connected through a flexible linker to
我们对不同的胍基羰基吡咯-芳基衍生物进行了系统的研究,这些衍生物旨在通过将芳香族部分插入核苷酸的碱基堆栈中以及通过胍基羰基吡咯阳离子的凹槽结合来与DNA或RNA相互作用。我们改变了1)芳香环的大小(苯,萘,pyr和a啶),2)连接两个结合基团的接头的长度和柔性,以及3)在不同pH值下存在的正电荷总数。通过UV / Vis,荧光和CD光谱研究了化合物及其与DNA和RNA的相互作用。还确定了对人肿瘤细胞系的抗增殖活性。我们的研究表明,与 DNA需要一个很大的芳香环(py),该芳香环通过柔性接头连接到吡咯部分。但是,正电荷如12,也是必需的。化合物12允许在生理pH值下对ds-DNA进行碱基对选择性识别。这些化合物的抗增殖活性与其对DNA的结合亲和力有关,这表明它们的生物学作用最有可能是由于DNA结合所致。