Ontology highlight
ABSTRACT:
PROVIDER: PRJNA951530 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Substantial evidence is now beginning to emerge that miRNAs, short, non-coding RNAs, which post-transcriptionally regulate gene expression, play a key role in the regulation of innate and adaptive immunity in humans and mice. Little is currently known, however, regarding the importance miRNAs in regulating the host response to infection in agriculturally important animals, such as cattle. Mastitis is an inflammatory disease of the mammary gland caused either by infection or physical damage, which is associated with substantial economic losses. In this study, we report a next generation sequencing approach to profile the expression of bovine miRNAs in primary bovine mammary epithelial (BMEs) cells challenged with a bovine mastitis pathogen, Streptococcus uberis (0140J). Computational analysis has been undertaken on 450 million raw sequence reads and revealed that 20% of known bovine miRNAs are expressed in BMEs. Furthermore, 22 miRNAs were found to be differentially expressed over the 6 hour time-course. We have completed miRNA target prediction analysis and found that the target genes of down-regulated miRNAs are enriched for having a role in innate immunity, and pathways associated with target genes of up-regulated miRNA correspond to previously reported mastitis-relevant pathways. In addition, we report 21 potentially novel bovine miRNAs that have not previously been described, two of which have close human orthologs. This study provides new insight into the regulation of miRNAs in the host response to infection at an unprecedented level in any species.
2013-10-02 | GSE41278 | GEO
Project description:Escherichia coli and Staphylococcus aureus are two common pathogenic microorganisms that cause mastitis in dairy cows. They can cause clinical mastitis and subclinical mastitis. In recent studies, lncRNAs have been found to play an important role in the immune responses triggered by microbial inducers. However, the actions of lncRNAs in bovine mastitis remain unclear. The purpose of this study was to explore the lncRNA profile on mastitis.
2021-08-06 | GSE181464 | GEO
Project description:Substantial evidence is now beginning to emerge that miRNAs, short, non-coding RNAs, which post-transcriptionally regulate gene expression, play a key role in the regulation of innate and adaptive immunity in humans and mice. Little is currently known, however, regarding the importance miRNAs in regulating the host response to infection in agriculturally important animals, such as cattle. Mastitis is an inflammatory disease of the mammary gland caused either by infection or physical damage, which is associated with substantial economic losses. In this study, we report a next generation sequencing approach to profile the expression of bovine miRNAs in primary bovine mammary epithelial (BMEs) cells challenged with a bovine mastitis pathogen, Streptococcus uberis (0140J). Computational analysis has been undertaken on 450 million raw sequence reads and revealed that 20% of known bovine miRNAs are expressed in BMEs. Furthermore, 22 miRNAs were found to be differentially expressed over the 6 hour time-course. We have completed miRNA target prediction analysis and found that the target genes of down-regulated miRNAs are enriched for having a role in innate immunity, and pathways associated with target genes of up-regulated miRNA correspond to previously reported mastitis-relevant pathways. In addition, we report 21 potentially novel bovine miRNAs that have not previously been described, two of which have close human orthologs. This study provides new insight into the regulation of miRNAs in the host response to infection at an unprecedented level in any species. 24 miRNAseq libraries were prepared from 3 infected and 3 control replicates at 1, 2, 4 and 6 hours.
2013-10-02 | E-GEOD-41278 | biostudies-arrayexpress
Project description:Impaired innate Immune System Contributes to Severity of Bovine Mastitis Associated with Escherichia coli
2023-10-21 | PXD046346 |
Project description:Bovine mastitis causes changes in the serum exosomal miRNAs expression. Serum samples from healthy dairy cows (n = 7) were compared to those of cows with subclinical (n = 7 ) using small RAN sequencing. Three hundred fifty-five miRNAs (341 known and 14 novel ones) were identified. There were 42 miRNAs up-regulated in serum-derived EVs from cows with subclinical mastitis, including bta-miR-1246, bta-miR-2431-3p, bta-miR-126-3p, bta-miR-29a, etc. The MAPK signaling pathway was the most affected pathway by clinical mastitis. Thus, miRNA alterations in mastitis serum-derived EVs support the potential regulator role of specific miRNAs as exosomal cargo in clinical mastitis physiology.
2022-08-31 | GSE202849 | GEO
Project description:We performed a genome-wide transcriptional analysis in the mammary gland in a mouse model of E. coli mastitis using high-density mouse oligonucleotide microarrays. This global transcription analysis revealed that about 7% of tested genes are mobilized in the mouse mammary gland to E. coli endotoxin. We identified 1402 differentially expressed genes that were associated with physiological system development/function and molecular/cellular functions and metabolic/signalling pathways that are highly relevant to host immune-inflammatory defense response against E. coli infection. The mouse differentially expressed genes through the use of comparative mapping/genomics and positional information on reported QTL for bovine mastitis allowed identifying 293 potential candidate genes for bovine mastitis. This study will enable other researchers to combine our mRNA expression data with genetic association studies to discover genomic variation underlying variation of susceptibility to mastitis in dairy cows. Keywords: time course, disease state analysis
2011-06-30 | GSE14485 | GEO