Supramolecular self-associating amphiphiles (SSAs) as enhancers of antimicrobial agents towards Escherichia coli (E. coli).

Supramolecular self-associating amphiphiles (SSAs) as enhancers of antimicrobial agents towards Escherichia coli (E. coli).
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超分子自缔合两亲分子(SSAs)作为抗菌剂对大肠杆菌(E. coli)的增效剂

DOI:
10.1039/d1ra00998b
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发表时间:
2021-03-01
期刊:
影响因子:
3.9
通讯作者:
Hiscock JR
Hiscock JR
中科院分区:
化学3区
文献类型:
--
作者:
Boles JE;Ellaby RJ;Shepherd HJ;Hiscock JR

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超分子自缔合两亲物(SSAs)是一类两亲性盐,已显示出对革兰氏阳性菌和革兰氏阴性菌的抗菌活性。在此,我们表明SSAs还能够提高一系列目前使用的具有不同化学结构和抗革兰氏阴性大肠杆菌抗菌作用模式的抗菌/治疗剂的功效,这些药物包括:奥替尼啶(一种防腐剂);氨苄西林(一种抗生素);顺铂(一种DNA螯合剂)。此外,我们表明这些效应取决于药物添加的顺序。最后,通过完成一系列1∶1的SSA∶抗菌/治疗剂的物理化学研究,我们了解到这些次级分子种类的存在如何影响自缔合事件以及由此产生的SSA聚集体结构。 利用超分子自缔合两亲物(SSAs)和抗菌/治疗剂作为联合疗法,以提高对大肠杆菌的疗效。
Supramolecular self-associating amphiphiles (SSAs) are a class of amphiphilic salt which have demonstrated antimicrobial activity against both Gram-positive and Gram-negative bacteria. Herein, we show that SSAs are also able to increase the efficacy of a range of currently used antimicrobial/therapeutic agents with a range of different chemical structures and modes of antimicrobial action against Gram-negative Escherichia coli, which include: octenidine (an antiseptic); ampicillin (an antibiotic); and cisplatin (a DNA chelating agent). Additionally, we show these effects to be dependent on the order of agent addition. Finally, through completion of a range of 1 : 1 SSA :  antimicrobial/therapeutic agent physicochemical studies we gain an understanding as to how the self-association events and resultant SSA aggregate structure are effected by the presence of these secondary molecular species. Using supramolecular self-associating amphiphiles (SSAs) and antimicrobial/therapeutic agents as combination therapies that lead to increased efficacy against Escherichia coli.
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