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Investigating the influence of iron on Campylobacter jejuni transcriptome in response to acid stress

机译:调查铁对酸性胁迫反应Camexobacter Chemjuni转录组的影响

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The capacity of C. jejuni to survive acid and capture iron is a requirement for C. jejuni to colonize host and cause infection. Herein, we aimed to characterize the influence of iron on Campylobacter acid response. The capacity of C. jejuni to survive acid stress was greatly enhanced in presence of iron. Moreover, the acid stimulon of C. jejuni under iron-enriched condition was investigated using the microarray approach. A total of 211 genes were differentially expressed in C. jejuni. Differentially expressed genes were included in 21 functional groups that control Campylobacter physiology. C. jejuni induced expression of many genes that were previously shown to be important for Campylobacter acid survival such as flagella biogenesis genes and genes involved in cell envelope biogenesis. The microarray results were validated using RT-qPCR where there was a great similarity in data obtained by both techniques. Finally, comparative analysis with previous studies showed that acid exposure induced expression of many genes in C. jejuni that were not detected in other studies such as genes encoding for the heat shock proteins GroEL and GroES. Current data could help us understand the mechanism of C. jejuni acid survival and consequently overcome infection by this enteric pathogen.
机译:C.Jejuni生存酸和捕获铁的能力是C. Jejuni进行殖民宿主并引起感染的要求。在此,我们旨在表征铁对弯曲酸反应的影响。在铁的存在下大大增强了C.Jejuni生存酸胁迫的能力。此外,使用微阵列方法研究了在富集的氧化物条件下C. jejuni的酸刺激。总共211个基因在C.Jejuni中差异表达。将差异表达的基因包含在控制弯曲杆菌生理学的21个官能团中。 C. jejuni诱导先前所示对于弯曲杆菌生存期是重要的许多基因的表达,例如鞭毛生物发生基因和参与细胞包膜生物发生的基因。使用RT-QPCR验证微阵列结果,其中通过两种技术获得的数据具有很大的相似性。最后,与先前研究的比较分析表明,在其他研究中未检测到的C. Jejuni中的许多基因的表达诱导酸暴露诱导的表达。目前的数据可以帮助我们理解C.Jejuni酸存活的机制,从而克服这种肠道病原体的感染。

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