A novel incompatibility group X3 plasmid carrying bla NDM-1 encodes a small RNA that regulates host fucose metabolism and biofilm formation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

View graph of relations

Detail(s)

Original languageEnglish
Journal / PublicationRNA Biology
Online published28 Jun 2020
Publication statusOnline published - 28 Jun 2020

Abstract

The emergence of New Delhi metallo-beta-lactamase (NDM-1) has become a major health threat to clinical managements of gram-negative bacteria infections. A novel incompatibility group X3 plasmid (IncX3) pNDM-HN380 carrying bla NDM-1 has recently been found to epidemiologically link with multiple geographical areas in China. In this paper, we studied the metabolic responses of host bacteria E. coli J53 upon introduction of pNDM-HN380. A reduction of bacterial motility was observed in J53/pNDM-HN380. We profiled the RNA repertoires of the transconjugants and found a downregulation of genes involved in flagella and chemotaxis metabolic pathways at logarithmic (log) phase. We also identified a novel intragenic region (IGR) small RNA plas2. The plasmid-transcribed sRNA IGR plas2 was further characterized as a regulator of fucRwhich controls the fucose metabolism. By knockdown of IGR plas2 using an antisense decoy, we managed to inhibit the formation of bacterial biofilm of the host. Our study demonstrated a potential way of utilizing plasmid-transcribed sRNA against infectious bacteria.

Research Area(s)

  • Drug resistance, IGR plas2, MDR, NDM1, plasmid, RNA-seq, sRNA, transcriptomes

Citation Format(s)

A novel incompatibility group X3 plasmid carrying bla NDM-1 encodes a small RNA that regulates host fucose metabolism and biofilm formation. / Huang, Chuan; Liu, Liang-Zhe; Kong, Hoi-Kuan; Law, Carmen O. K.; Hoa, Pham Quynh; Ho, Pak-Leung; Lau, Terrence C. K.

In: RNA Biology, 28.06.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal