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    • 8. 发明申请
    • USE OF BACTERIAL BETA-LACTAMASE FOR IN VITRO DIAGNOSTICS AND IN VIVO IMAGING, DIAGNOSTICS AND THERAPEUTICS
    • 细菌内切β-葡聚糖酶用于体外诊断和体内成像,诊断和治疗
    • WO2010016911A2
    • 2010-02-11
    • PCT/US2009/004503
    • 2009-08-06
    • THE TEXAS A & M UNIVERSITY SYSTEM
    • CIRILLO, Jeffrey, D.RAO, Jianghong
    • G01N33/52C12Q1/25G01N33/569
    • 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.
    • 本文提供了使用荧光,发光或比色检测剂(例如细菌酶的荧光底物,笼状荧光素和荧光蛋白)检测,诊断和成像致病细菌或与其相关的病理生理状况的成像方法, 萤光素酶和由重组细菌表达的酶。 比较荧光,发光或比色检测剂在细菌存在下发出的信号与对照以检测和定位致病细菌。 还提供了筛选治疗剂以通过在存在和不存在潜在治疗剂的情况下测量由检测剂发出的荧光或发光来治疗病理生理状况的方法。 此外,还提出了一种使用用于β-内酰胺酶或致病菌的其他酶或蛋白质的正电子发射或γ发射底物通过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。