Project description:To investigate the interaction of intra-amoebal C. jejuni with the transient host A. castellanii. We then performed gene expression profiling analysis using data obtained from RNA-seq of control and intra-amoebal C. jejuni.
Project description:The persistence of Campylobacter jejuni in the natural environment, despite its microaerophilic nature, continues to be a subject of active investigation. Its survival and persistence likely stem from a combination of factors, including interactions with amoebae. C. jejuni transiently interacts with Acanthamoebae and this is thought to provide protection against unfavourable conditions and prime the bacteria for interactions with warm-blooded hosts. Acanthamoebae play vital roles in ecosystems by preying on microorganisms and establishing ecological niches with various bacterial species, some of which are clinically important pathogens. To gain a better understanding on the role of Acanthamoebae in the persistence of C. jejuni in the natural environment, we examined their interactions at the molecular level.
Project description:A culture of Acanthamoeba castellanii cells was infected with mimivirus. At specified times after infection, infected cells aliquots were subjected to total RNA extraction. Cy3 labeled cDNA was hybridized on custom designed Agilent oligonucleotide tiling microarrays covering both strands of the mimivirus genome.