Xin Li1,2,3, Lei Chen1, Haitao Zhou4, Shaobin Gu1, Ying Wu1, Bing Wang1, Miaomiao Zhang5,6, Nan Ding5,6, Jiaju Sun1, Xinyue Pang7, Dong Lu5,6. 1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China. 2. Key Laboratory of Microbial Resources Exploitation and Utilization, Luoyang, China. 3. National Demonstration Center for Experimental Food Processing and Safety Education, Luoyang, China. 4. Neurology Department, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China. 5. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China. 6. University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China. 7. College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China.
Abstract
BACKGROUND: Ionizing radiation, especially heavy ion (HI) beams, has been widely used in biology and medicine. However, the mechanism of membrane damage by such radiation remains primarily uncharacterized. PURPOSE: Transcriptomic profiles of Escherichia coli (E. coli) treated with HI illustrated the response mechanisms of the membrane, mainly ABC transporters, related genes regulated by antibiotics treatment through enrichment analyses of GO and KEGG. The networks of protein-protein interactions indicated that LsrB was the crucial one among the ABC transporters specially regulated by HI through the calculation of plugins MCODE and cytoHubba of Cytoscape. Finally, the expression pattern, GO/KEGG enrichment terms, and the interaction between nine LuxS/AI-2 quorum sensing system members were investigated. CONCLUSIONS: Above all, results suggested that HI might perform membrane damage through regulated material transport, inhibited LuxS/AI-2 system, finally impeded biofilm formation. This work provides further evidence for the role of ABC transporters, especially LsrB, in membrane damage of E. coli to HI. It will provide new strategies for improving the precise application of HI.
BACKGROUND: Ionizing radiation, especially heavy ion (HI) beams, has been widely used in biology and medicine. However, the mechanism of membrane damage by such radiation remains primarily uncharacterized. PURPOSE: Transcriptomic profiles of Escherichia coli (E. coli) treated with HI illustrated the response mechanisms of the membrane, mainly ABC transporters, related genes regulated by antibiotics treatment through enrichment analyses of GO and KEGG. The networks of protein-protein interactions indicated that LsrB was the crucial one among the ABC transporters specially regulated by HI through the calculation of plugins MCODE and cytoHubba of Cytoscape. Finally, the expression pattern, GO/KEGG enrichment terms, and the interaction between nine LuxS/AI-2 quorum sensing system members were investigated. CONCLUSIONS: Above all, results suggested that HI might perform membrane damage through regulated material transport, inhibited LuxS/AI-2 system, finally impeded biofilm formation. This work provides further evidence for the role of ABC transporters, especially LsrB, in membrane damage of E. coli to HI. It will provide new strategies for improving the precise application of HI.
Entities:
Keywords:
ABC transporter; biofilm; heavy ion; protein–protein interaction (PPI) network; quorum sensing (QS); transcriptomic