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A New Phage Cocktail Against Multidrug, ESBL-Producer Isolates of Shigella sonnei and Shigella flexneri with Highly Efficient Bacteriolytic Activity

文献类型： 外文期刊

作者： Shahin, Khashayar 1 ; Bouzari, Majid 1 ; Komijani, Majid 3 ; Wang, Ran 2 ;

作者机构： 1.Univ Isfahan, Fac Sci, Dept Biol, Hezar Jereeb St, Esfahan 8174673441, Iran

2.Jiangsu Acad Agr Sci, Inst Food Safety & Nutr, State Key Lab Cultivat Base MOST, Nanjing 210014, Peoples R China

3.Arak Univ, Fac Sci, Dept Biol, Arak, Iran

4.Jiangsu Univ, Zhenjiang, Jiangsu, Peoples R China

关键词： shigellosis; Shigella spp; multidrug resistance; bacteriophage; phage therapy

期刊名称：MICROBIAL DRUG RESISTANCE （ 影响因子：3.431； 五年影响因子：3.275 ）

ISSN： 1076-6294

年卷期：

页码：

收录情况： SCI

摘要： The globally increasing incidence of antibiotic resistance in pathogenic microorganisms such as Shigella, a cause of human acute gastrointestinal infections, calls for developing effective alternatives. In this study, the antibiotic resistance pattern, extended-spectrum beta-lactamase (ESBL)-production, and molecular characteristics of 70 multidrug-resistant isolates belong to the two most frequent species of Shigella genus, that is, Shigella sonnei (44 isolates) and Shigella flexneri (26 isolates) were investigated. These isolates were used to evaluate both specificity and activity of Shigella-specific bacteriophages, vB_SflS-ISF001, vB_SsoS-ISF002, and a cocktail of both. Twelve out of the 21 tested resistance genes were detected in the isolates. About 59% of S. sonnei and 46% of S. flexneri isolates were identified as ESBL producers. The bacteriophages showed a high efficiency of plating (EOP >= 0.5) in about 75% of the isolates. Moreover, the growth of >85% of the isolates was inhibited by the phage cocktail of vB_SflS-ISF001 and vB_SsoS-ISF002. The phage cocktail was effective against a wide range of ESBL-positive and -negative isolates of S. sonnei and S. flexneri. Therefore, this phage cocktail has the potential to inhibit or significantly decrease the spread of drug-resistant Shigella in humans, food chains, and water/wastewater sanitation systems.

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