前列腺癌
体内
化学
荧光寿命成像显微镜
癌症
癌症研究
雌激素受体
离体
前列腺
临床前影像学
过氧化氢
分子成像
癌细胞
荧光
生物物理学
乳腺癌
体外
医学
生物化学
内科学
生物
物理
生物技术
量子力学
作者
Pei He,Xiaofei Deng,Bin Xu,Baohua Xie,Zhongze Wu,Hai-Bing Zhou,Chune Dong
出处
期刊:Molecules
[MDPI AG]
日期:2023-03-02
卷期号:28 (5): 2309-2309
被引量:2
标识
DOI:10.3390/molecules28052309
摘要
Hydrogen peroxide is one of the most important reactive oxygen species, which plays a vital role in many physiological and pathological processes. A dramatic increase in H2O2 levels is a prominent feature of cancer. Therefore, rapid and sensitive detection of H2O2 in vivo is quite conducive to an early cancer diagnosis. On the other hand, the therapeutic potential of estrogen receptor beta (ERβ) has been implicated in many diseases including prostate cancer, and this target has attracted intensive attention recently. In this work, we report the development of the first H2O2-triggered ERβ-targeted near-infrared fluorescence (NIR) probe and its application in imaging of prostate cancer both in vitro and in vivo. The probe showed good ERβ selective binding affinity, excellent H2O2 responsiveness and near infrared imaging potential. Moreover, in vivo and ex vivo imaging studies indicated that the probe could selectively bind to DU-145 prostate cancer cells and rapidly visualizes H2O2 in DU-145 xenograft tumors. Mechanistic studies such as high-resolution mass spectrometry (HRMS) and density functional theory (DFT) calculations indicated that the borate ester group is vital for the H2O2 response turn-on fluorescence of the probe. Therefore, this probe might be a promising imaging tool for monitoring the H2O2 levels and early diagnosis studies in prostate cancer research.
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