[EN] PROBES FOR RAPID AND SPECIFIC DETECTION OF MYCOBACTERIA<br/>[FR] SONDES POUR LA DÉTECTION RAPIDE ET SPÉCIFIQUE DE MYCOBACTÉRIES
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2017027062A1
公开(公告)日:2017-02-16
The compositions of the present disclosure provide novel fluorogenic probes for use in the specific imaging and detection of mycobacteria species, and in particular β-lactam- antibiotic resistant. Specificity for mycobacteria is conferred on these probes by incorporating a moiety that specifically targets the unique trapping mechanism of the DprE1 found in in mycobacteria. Accordingly, only Mycobacteria species that express both a β- lactamase and DprE1 enable both the activation of the caged fluorescent probe, and the affixing of the released fluorescent probes to the bacteria cells through the functioning reduction-covalent binding mechanism. Advantageously, such a probe is able, at its most sensitive, to allow single mycobacterium detection.
本公开的组成提供了新颖的生色团探针,用于特定地成像和检测分枝杆菌种类,尤其是对β-内酰胺类抗生素具有抗药性的种类。这些探针通过引入一种特定针对分枝杆菌中DprE1独特捕获机制的基团,从而实现对分枝杆菌的特异性。因此,只有表达β-内酰胺酶和DprE1的分枝杆菌种类才能激活笼状荧光探针,并通过功能性还原-共价结合机制将释放的荧光探针固定到细菌细胞上。这种探针的一个显著优点是,在其最敏感的情况下,能够实现单个分枝杆菌的检测。