Carbocyanines for G-Quadruplex DNA Stabilization and Telomerase Inhibition
申请人:Henary Maged
公开号:US20140142147A1
公开(公告)日:2014-05-22
Cyanines which selectively bind to G-quadruplex DNA complexes, particularly quadruplexes expressed in cancer cells, and methods of making and using thereof are described herein. The cyanine can be a symmetrical or unsymmetrical streptocyanine, hemicyanine, closed chain cyanine, or combinations thereof. The cyanine is preferably substituted with one or more groups that minimize or prevent aggregation of the cyanine and/or inhibit binding of the cyanine to duplex DNA. One or more of the cyanines can be formulated with one or more pharmaceutical excipients and/or carrier to prepare pharmaceutical compositions suitable for administration to a patient, particular a human patient. The compounds and compositions described herein can be used to treat diseases or disorders characterized by the expression of G-quadruplex DNA, such as cancer.
Approach to a Substituted Heptamethine Cyanine Chain by the Ring Opening of Zincke Salts
作者:Lenka Štacková、Peter Štacko、Petr Klán
DOI:10.1021/jacs.9b02537
日期:2019.5.1
Cyaninedyes play an indispensable and central role in modern fluorescence-based biological techniques. Despite their importance and widespread use, the current synthesismethods of heptamethine chain modification are restricted to coupling reactions and nucleophilic substitution at the meso position in the chain. Herein, we report the direct transformation of Zincke salts to cyaninedyes under mild
photothermal combinatorial therapies is still a challenging task. Herein, a rational design and facile synthesis protocol are reported for a series of novel NIR‐emissive zwitterionic luminogens with aggregation‐inducedemission (AIE) features for cancer phototheranostics. Consistent with the intrinsic features including long emission wavelength, effective reactive oxygen species generation, and excellent
“Donor–Two-Acceptor” Dye Design: A Distinct Gateway to NIR Fluorescence
作者:Naama Karton-Lifshin、Lorenzo Albertazzi、Michael Bendikov、Phil S. Baran、Doron Shabat
DOI:10.1021/ja308124q
日期:2012.12.19
The detection of chemical or biological analytes upon molecular reactions relies increasingly on fluorescence methods, and there is a demand for more sensitive, more specific, and more versatile fluorescent molecules. We have designed long wavelength fluorogenic probes with a turn-ON mechanism based on a donor-two-acceptor π-electron system that can undergo an internal charge transfer to form new fluorochromes