Generation of DNA Interstrand Cross-Links by Post-Synthetic Reductive Amination
作者:Todor Angelov、Angelo Guainazzi、Orlando D. Schärer
DOI:10.1021/ol802719a
日期:2009.2.5
DNA interstrand cross-links (ICLs) are the clinically most relevant adducts formed by many antitumor agents. To facilitate the study of biological responses triggered by ICLs, we developed a new approach toward the synthesis of mimics of nitrogen mustard ICLs. 7-Deazaguanine residues bearing acetaldehyde groups were incorporated into complementary strands of DNA and cross-link formation induced by
DNA 链间交联 (ICL) 是临床上最相关的加合物,由许多抗肿瘤药物形成。为了促进对 ICL 引发的生物反应的研究,我们开发了一种合成氮芥ICL 模拟物的新方法。带有乙醛基团的 7-脱氮鸟嘌呤残基被整合到 DNA 的互补链中,并通过双还原胺化诱导形成交联。我们的策略能够以高产率和纯度合成大沟交联。
Synthesis and Molecular Modeling of a Nitrogen Mustard DNA Interstrand Crosslink
作者:Angelo Guainazzi、Arthur J. Campbell、Todor Angelov、Carlos Simmerling、Orlando D. Schärer
DOI:10.1002/chem.201002041
日期:2010.10.25
Nitrogenmustard reloaded: Over 60 years after nitrogenmustards (NMs) were the first agents used to treat tumors by chemotherapy, we provide a method to generate the main DNA adduct formed by NMs and validate them by using molecular dynamics simulations (see graphic). We are able to provide amounts that permit extensive structural and biological studies.
重新加载氮芥:在氮芥 (NMs) 成为第一种通过化学疗法治疗肿瘤的药物后 60 多年,我们提供了一种方法来生成由 NMs 形成的主要 DNA 加合物,并通过使用分子动力学模拟对其进行验证(见图)。我们能够提供允许进行广泛结构和生物学研究的数量。