whether the phthalocyanine derivatives binding to G-quadruplex enhance the block to DNA synthesis, primer extension reactions were carried out in the presence of phthalocyanines. The interaction of the G-quadruplex of telomerase DNA with these molecules was examined by CD melting and PCR stop assay. These cationic phthalocyanine derivatives can stabilize G-quadruplex, which is demonstrated by the increased
设计并合成了一系列
水溶性阳离子
酞菁衍
生物(1-10),以开发新型有效的端粒酶
抑制剂。通过改进的端粒酶重复扩增方案(
TRAP)分析研究了这些作为端粒酶
抑制剂的
酞菁衍
生物。
TRAP分析表明这些阳离子化合物具有很强的端粒酶抑制活性(IC(50)<1.65 microM)。为了确定结合至G-四链体的酞菁衍生物是否增强了对DNA合成的阻断,在存在酞菁的情况下进行了引物延伸反应。端粒酶DNA的G-四链体与这些分子的相互作用通过CD熔解和PCR终止分析进行了检查。这些阳离子酞菁衍
生物可以稳定G-四链体,这可以通过提高T(m)值来证明。