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    • 7. 发明申请
    • Use of bacterial beta-lactamase for in vitro diagnostics and in vivo imaging, diagnostics and therapeutics
    • 使用细菌β-内酰胺酶进行体外诊断和体内成像,诊断和治疗
    • US20100047172A1
    • 2010-02-25
    • US12462644
    • 2009-08-06
    • Jeffrey D. CirilloJianghong Rao
    • Jeffrey D. CirilloJianghong Rao
    • A61K49/00C12Q1/34C07D513/04
    • C12Q1/04A61K49/0013C12Q1/34G01N2333/986
    • Provided herein are imaging methods for detecting, diagnosing and imaging pathogenic bacteria or a pathophysiological condition associated therewith using fluorescent, luminescent or colorimetric detection agents, e.g., fluorogenic substrates for bacterial enzymes, caged luciferins and fluorescent proteins, luciferases and enzymes expressed by recombinant bacteria. Signals emitted by the fluorescent, luminescent or colorimetric detection agents in the presence of the bacteria are compared to controls to detect and locate the pathogenic bacteria. Also provided is a method for screening therapeutic agents to treat the pathophysiological conditions by measuring fluorescence or luminescence emitted from the detection agents in the presence and absence of the potential therapeutic agent. In addition, a method for detecting a pathogenic bacteria via PET or SPECT imaging using a positron-emitting or gamma-emitting substrate for a beta-lactamase or other enzyme or protein of the pathogenic bacteria. Further provided are the fluorogenic substrates CNIR-7 or CNIR7-TAT or the radiolabeled substrates.
    • 本文提供了用于使用荧光,发光或比色检测剂检测,诊断和成像病原菌或病理生理条件的成像方法,例如用于细菌酶,笼状荧光素和荧光蛋白的荧光底物,由重组细菌表达的荧光素酶和酶。 将荧光,发光或比色检测剂在细菌存在下发出的信号与对照相比较以检测和定位病原菌。 还提供了一种通过在存在和不存在潜在治疗剂的情况下测量从检测剂发出的荧光或发光来筛选治疗剂来治疗病理生理状况的方法。 另外,通过使用正电子发射或γ-发射底物的β-内酰胺酶或致病菌的其它酶或蛋白质通过PET或SPECT成像检测致病细菌的方法。 还提供了荧光底物CNIR-7或CNIR7-TAT或放射性标记的底物。