作者:Luana La Piana、Valentina Viaggi、Luigi Principe、Stefano Di Bella、Francesco Luzzaro、Maurizio Viale、Nadia Bertola、Graziella Vecchio
DOI:10.1016/j.jinorgbio.2020.111315
日期:2021.2
often able to restore carbapenem susceptibility. We synthesized polypyridyl ligands, N,N′-bis(2-pyridylmethyl)-ethylenediamine, N,N,N′-tris(2-pyridylmethyl)-ethylenediamine, N,N′-bis(2-pyridylmethyl)-ethylenediamine-N-acetic acid (N,N,N′-tris(2-pyridylmethyl)-ethylenediamine-N′-acetic acid, which can form zinc(II) complexes. We tested their ability to restore the antibiotic activity of meropenem against
细菌已经对最常用的抗生素产生了多种耐药机制。特别是,锌依赖性金属-β-内酰胺酶产生细菌的威胁越来越大,治疗选择有限。最近研究了锌螯合剂作为金属-β-内酰胺酶抑制剂,因为它们通常能够恢复碳青霉烯的敏感性。我们合成了多吡啶基配体,N , N '-双(2-吡啶基甲基)-乙二胺,N,N,N'-三(2-吡啶基甲基)-乙二胺,N , N'-双(2-吡啶基甲基)-乙二胺-N-乙酸(N,N,N'-三(2-吡啶基甲基)-乙二胺-N'-乙酸,可以形成锌(II)配合物。我们测试了它们恢复美罗培南对从血液和金属β-内酰胺酶生产者(肺炎克雷伯菌、阴沟肠杆菌和嗜麦芽窄食单胞菌)中分离的三种临床菌株的抗生素活性的能力。我们功能化了 N,N,N'-tris(2-pyridylmethyl)-乙二胺与 D-丙氨酰-D-丙氨酰-D-丙氨酸甲酯,目的是增加细菌摄取。我们观察到四种多吡啶配体与美罗培南对所有测试分离株的协同活性,而组合N