过氧化氢(H 2 O 2)在氧化还原信号和氧化应激中起重要作用,其动态浓度对人类健康和疾病至关重要。在此,我们报告HKPerox-Red和HKPerox-Ratio的设计,合成及其在H 2 O 2定量测量中的生物学应用。两种探针均成功地用于检测活细胞或斑马鱼中的内源性H 2 O 2通量,并研究了鱼藤酮,三氧化二砷和饥饿等多种应激诱导物的生物学效应。作为H 2 O 2是氧化酶氧化的常见副产物,已开发出一种通用检测方法,可用于各种代谢物(葡萄糖,尿酸和肌氨酸)的超灵敏检测。此外,通过将流式细胞仪与活细胞校准相结合,首次实现了细胞H 2 O 2的测量。这项研究为高级H 2 O 2生物成像和分析开发提供了一对独特的分子工具。
过氧化氢(H 2 O 2)在氧化还原信号和氧化应激中起重要作用,其动态浓度对人类健康和疾病至关重要。在此,我们报告HKPerox-Red和HKPerox-Ratio的设计,合成及其在H 2 O 2定量测量中的生物学应用。两种探针均成功地用于检测活细胞或斑马鱼中的内源性H 2 O 2通量,并研究了鱼藤酮,三氧化二砷和饥饿等多种应激诱导物的生物学效应。作为H 2 O 2是氧化酶氧化的常见副产物,已开发出一种通用检测方法,可用于各种代谢物(葡萄糖,尿酸和肌氨酸)的超灵敏检测。此外,通过将流式细胞仪与活细胞校准相结合,首次实现了细胞H 2 O 2的测量。这项研究为高级H 2 O 2生物成像和分析开发提供了一对独特的分子工具。
[EN] COMPOUNDS AND METHODS FOR DETECTION OF HYDROGEN PEROXIDE<br/>[FR] COMPOSÉS ET PROCÉDÉS DE DÉTECTION DE PEROXYDE D'HYDROGÈNE
申请人:UNIV HONG KONG
公开号:WO2018133859A1
公开(公告)日:2018-07-26
Disclosed herein are compounds and methods for using the same for the detection of hydrogen peroxide in situ. The compounds can include compounds of Formula (I), Formula (II), or Formula (III), or a salt thereof, wherein X1 is a monovalent pro-fluorophore or pro-luminophore moiety; X2 is a divalent pro-fluorophore or pro-luminophore moiety; each of A and A' is independently represented by formula (IV) or formula (V) :
Hydrophobic resorufamine derivatives: Potent and selective red fluorescent probes of the endoplasmic reticulum of mammalian cells
作者:Sahishna Phaniraj、Zhe Gao、Digamber Rane、Blake R. Peterson
DOI:10.1016/j.dyepig.2016.05.007
日期:2016.12
The endoplasmicreticulum (ER) of eukaryotic cells plays critical roles in the processing of secreted and transmembrane proteins. Defects in these functions are associated with a wide range of pathologies. To image this organelle, cells are often treated with fluorescent ER-Tracker dyes. Although these compounds are selective, existing red fluorescentprobes of the ER are costly glibenclamide derivatives
[EN] LUMINESCENCE QUENCHERS AND FLUOROGENIC PROBES FOR DETECTION OF REACTIVE SPECIES<br/>[FR] EXTINCTEURS DE LUMINESCENCE ET SONDES FLUOROGÉNIQUES DESTINÉS À LA DÉTECTION D'UNE ESPÈCE RÉACTIVE
申请人:VERSITECH LTD
公开号:WO2009121247A1
公开(公告)日:2009-10-08
Provided herein are compounds or fluorogenic probes which can be used as reagents for measuring, detecting and/or screening ROS or RNS such as peroxynitrite or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of peroxynitrite or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the fluorogenic probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite or hypochlorite in chemical and biological samples.
Fluorescent Agonists of the
<i>α</i>
7 Nicotinic Acetylcholine Receptor Derived from 3‐Amino‐Quinuclidine
作者:Justus J. Bürgi、Sonia Bertrand、Fabrice Marger、Daniel Bertrand、Jean‐Louis Reymond
DOI:10.1002/hlca.201600120
日期:2016.10
small molecule agonists of the α7 nicotinicacetylcholinereceptor (nAChR) might be identified to enhance receptor studies. Enantiomerically pure 3‐amino‐quinuclidines appended with fluorophores at the 3‐amino group were synthesized and tested by electrophysiology on human α7 nAChR in Xenopus oocytes, uncovering (R)‐4 and (R)‐9 as the first examples of fluorescent α7 nAChR agonists. These molecules