Project description:The immune response associated with mastitis caused by Mycoplasma bovis is a very complicated biological process in several type of cells, including immune cells, mammary epithelial cells and, endothelial cells. Thus, revealing of the microRNAs in the Mycoplasma bovis infected mammary gland tissues is particularly important for the immune response mechanism to Mycoplasma bovis. Firstly, mammary gland tissue samples were collected from Holstein cows and screened for Mycoplasma bovis. Then, total RNA was isolated from mycoplasma bovis infected tissues and RNA sequencing was performed. After bioinformatics analysis, GO and KEGG analysis of target genes of identified microRNAs were conducted. Our results revaled that 24 of the known microRNAs were expressed differently and 13 of the novel microRNAs were expressed differently in Mycoplasma bovis positive tissues. The target genes of these microRNAs were found to be associated with especially inflammation pathways. In conclusion, this study demonstrated that identified miRNAs may be involved in the signaling pathways during mastitis case caused by Mycoplasma bovis.
2021-05-25 | GSE152865 | GEO
Project description:WGS Australian Mycoplasma bovis isolates
Project description:Mycoplasma species are highly contagious pathogens, and Mycoplasma infectious disease are a serious issue for the dairy industry. The bovine peripheral blood mononuclear cells play an important role for mycoplasma mastitis, however, the effects of M. bovis for immune response of peripheral blood mononuclear cells have not been fully clarified.We examined the transcription profiling of bovine peripheral blood mononuclear cells in intramammary infusion of M. bovis at day 7.
Project description:Mycoplasma species are highly contagious pathogens, and Mycoplasma infectious disease are a serious issue for the dairy industry. The bovine neutrophils play an important role for the eradication of pathogens which cause mycoplasmal infection, however the effects of M. bovis for immune response of neutrophils have not been fully clarified. We examined the transcription profiling of bovine neutrophils on the stimulation with M. bovis for 3h (3 stimuli, 3 control).
Project description:Mycoplasma species are highly contagious pathogens, and intramammary Mycoplasma infection is a serious issue for the dairy industry. The bovine mammary epithelial cells (bMEC) play an important role for the eradication of pathogens which cause intramammary infection, however the effects of M. bovis for immune response of bMEC have not been fully clarified. We examined the transcription profiling of bMEC on the stimulation with M. bovis for 6h (3 stimuli, 3 control).
Project description:Mycoplasma species are highly contagious pathogens, and Mycoplasma infectious disease are a serious issue for the dairy industry. The bovine peripheral blood mononuclear cells (PBMCs) play an important role for the eradication of pathogens which cause mycoplasmal infection, however the effects of M. bovis for immune response of PBMCs in vitro have not been fully clarified.We examined the transcription profiling of bovine PBMCs on the stimulation with M. bovis for 6h (3 stimuli, 3 control).
Project description:Mycoplasma bovis (M.bovis) is a critical pathogen of bovines resulting in pneumonia, mastitis, arthritis, etc. To reveal its virulence related factors, a virulent M. bovis HB0801 and its derived vaccine strain P150 were infected calve and the transcriptome profiles of PBMCs were compared by using of the microarray at 7 days after infection. The data postulated the pathogenic mechanism of wild strain and immune mechanism of the attenuated strain to provide clues for the further research of the interaction between M. bovis and its host.
Project description:This study was aimed to elucidate a global antigenic profile of Mycoplasma bovis (M. bovis) with immunoproteomics, immunoinformatics, and gene expression approaches. The extracts of whole-cell proteins and TX-114 membrane fraction of a Chinese strain M. bovis HB0801 were separated with two dimensional gel electrophoresis (2-DE) and proteins reacting with antisera to M. bovis from experimentally infected calves were detected by MALDI-TOF MS.
Project description:Mycoplasmas are simple, but successful parasites that have the smallest genome of any free-living cell and are thought to have a highly streamlined cellular metabolism. Here we have undertaken a detailed metabolomic analysis of two species, Mycoplasma bovis and Mycoplasma gallisepticum, which cause economically important diseases in cattle and poultry, respectively. Untargeted GC/MS and LC/MS analyses of mycoplasma metabolite extracts revealed significant differences in the steady state levels of many metabolites in central carbon metabolism, while 13C stable isotope labelling studies revealed marked differences in carbon source utilization. These data were mapped onto in silico metabolic networks predicted from genome wide annotations. The analyses elucidated distinct differences, including a clear difference in glucose utilisation, with a marked decrease in glucose uptake and glycolysis in M. bovis compared to M. gallisepticum, which may reflect differing host nutrient availabilities. The 13C-labeling patterns also revealed several functional metabolic pathways that were previously unannotated in these species, allowing us to assign putative enzyme functions to the products of a number of genes of unknown function, especially in M. bovis. This study demonstrates the considerable potential of metabolomic analyses to assist in characterising significant differences in the metabolism of different bacterial species, and in improving genome annotation.