Abstract Title:

Transcriptomic analysis of multi-drug resistantK-12 strain in response toessential oil.

Abstract Source:

3 Biotech. 2020 Jul ;10(7):313. Epub 2020 Jun 21. PMID: 32596098

Abstract Author(s):

Pey-Jiun Lai, Ee-Von Ng, Shun-Kai Yang, Chew-Li Moo, Wai Yee Low, Polly Soo-Xi Yap, Swee-Hua Erin Lim, Kok-Song Lai

Article Affiliation:

Pey-Jiun Lai


To better understand the synergistic antibacterial activity between piperacillin andessential oil (LEO) against multidrug-resistant, we performed microarray transcriptomic analysis of LEO when used alone and in combination with piperacillin against the non-treated control. In total, 90 genes were differentially expressed after the combination of LEO and piperacillin treatment. Among the up-regulated genes,,are known to control microbial metabolism and nitrotoluene degradation, which were observed only in the LEO-piperacillin combinatory treatment. Four candidate genes from the microarray result,andwere validated by qRT-PCR as these genes showed differential expression consistently in the two methods. Biochemical pathway analysis showed that there was upregulation of genes involved in several biological processes including fructose and mannose metabolism, phosphotransferase system (PTS), lipopolysaccharide biosynthesis and nitrotoluene degradation. Genes involved in microbial metabolism in diverse environments were found both up- and down-regulated in LEO-piperacillin combinatory treatment. Our study provides new information concerning the transcriptional changes that occur during the LEO and piperacillin interaction against the multidrug-resistant bacteria and contributes to unravel the mechanisms underlying this synergism.

Study Type : In Vitro Study

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Sayer Ji
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