Trisubstituted isoalloxazines as a new class of G-quadruplex binding ligands: small molecule regulation of c-kit oncogene expression.

Trisubstituted isoalloxazines as a new class of G-quadruplex binding ligands: small molecule regulation of c-kit oncogene expression.
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TrisubStttestated的异丙恶唑作为新的G四链体结合配体:C-KIT癌基因表达的小分子调节。

DOI:
10.1021/ja075881p
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发表时间:
2007-10-31
影响因子:
15
通讯作者:
Balasubramanian, Shankar
Balasubramanian, Shankar
中科院分区:
化学1区
文献类型:
--
作者:
Bejugam, Mallesham;Sewitz, Sven;Shirude, Pravin S.;Rodriguez, Raphael;Shahid, Ramla;Balasubramanian, Shankar

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本文报道了一类新的G-四链体结合配体3,8,10-三取代异咯嗪的设计、合成、生物物理学评价和初步生物学数据。我们开发了一种短而稳健的三取代异咯嗪的高产率合成方法。通过表面等离子体共振和荧光共振能量转移分析评估了异咯嗪的G-四链体结合和稳定潜力。数据显示,这些异咯嗪结合和稳定G-四链体DNA,但不是双链体DNA,并表现出区分DNA四链体的潜力。使用表达原癌基因c-kit(MCF-7和HGC-27)的细胞系的基于细胞的实验表明,这种异咯嗪可以抑制c-kit的表达。
Herein, we report the design, synthesis, biophysical evaluation with primary biological data of 3,8,10-trisubstituted isoalloxazines as a new class of G-quadruplex binding ligands. We have developed a short and robust synthesis for trisubstituted isoalloxazines in good yields. The G-quadruplex binding and stabilization potential of isoalloxazines was assessed by surface plasmon resonance and fluorescence resonance energy transfer assay. The data revealed that these isoalloxazines bind and stabilize G-quadruplex DNA, but not duplex DNA, and exhibit potential for discriminating between DNA quadruplexes. Cell-based experiments using cell lines that express the proto-oncogene c-kit (MCF-7 and HGC-27) showed that such isoalloxazines can inhibit the expression of c-kit.
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发表时间: 1995-02-01
影响因子: 15
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