Tail-Engineered Phage P2 Enables Delivery of Antimicrobials into Multiple Gut Pathogens.

Tail-Engineered Phage P2 Enables Delivery of Antimicrobials into Multiple Gut Pathogens.
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DOI:
10.1021/acssynbio.2c00615
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发表时间:
2023-02-17
影响因子:
4.7
通讯作者:
Wang, Baojun
Wang, Baojun
中科院分区:
生物学2区
文献类型:
--
作者:
Fa-arun, Jidapha;Huan, Yang Wei;Darmon, Elise;Wang, Baojun

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Bacteriophages can be reprogrammed to deliver antimicrobials for therapeutic and biocontrol purposes and are a promising alternative treatment to antimicrobial-resistant bacteria. Here, we developed a bacteriophage P4 cosmid system for the delivery of a Cas9 antimicrobial into clinically relevant human gut pathogens Shigella flexneri and Escherichia coli O157:H7. Our P4 cosmid design produces a high titer of cosmid-transducing units without contamination by a helper phage. Further, we demonstrate that genetic engineering of the phage tail fiber improves the transduction efficiency of cosmid DNA in S. flexneri M90T as well as allows recognition of a nonnative host, E. coli O157:H7. We show that the transducing units with the chimeric tails enhanced the overall Cas9-mediated killing of both pathogens. This study demonstrates the potential of our P4 cas9 cosmid system as a DNA sequence-specific antimicrobial against clinically relevant gut pathogenic bacteria.
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