Abstract
Estrogen receptor (ER) is a major transcriptional regulator that plays an important role in the treatment of breast cancer. Herein, we rationally designed and synthesized a novel small-molecule near-infrared (NIR) fluorescent probe, 2-(4-(2-(2,5-bis(2-fluoro-4-hydroxyphenyl)thiophen-3-yl)vinyl)− 3-cyano-5,5-dimethylfuran-2(5 H)ylidene)malononitrile (TCFT), which could enable prolonged live-cell imaging by three-dimensional (3D) confocal microscopy. Moreover, this bifunctional probe also exhibited photostability, selective estrogen receptor modulator activity, and potent antiproliferative activity for targeted breast cancer therapy, which would be a prominent NIR fluorescent probe for breast cancer study.
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