Project description:BACKGROUND: miRNA have been shown to play an important role during immune-mediated diseases such as inflammatory bowel disease. The aim of this study was to assess differential expression of miRNA between uninfected and infected mice with Clostridium difficile strain VPI 10463 RESULTS: MicroRNA (miRNA)-sequencing analysis indicated that miR-146b, miR-1940, and miR-1298 were significantly overexpressed in colons of C. difficile-infected mice
Project description:BACKGROUND: miRNA have been shown to play an important role during immune-mediated diseases such as inflammatory bowel disease. The aim of this study was to assess differential expression of miRNA between uninfected and infected mice with Clostridium difficile strain VPI 10463 RESULTS: MicroRNA (miRNA)-sequencing analysis indicated that miR-146b, miR-1940, and miR-1298 were significantly overexpressed in colons of C. difficile-infected mice Colon of uninfected and C.difficile-infected C57BL6/J WT mice were sampled at day 4 post-infection with Clostridium difficile VPI 10463. The infection dose was 107 cfu/mouse.
Project description:Smal RNA is a type of single-stranded small-molecule RNA with a size of about 18-40 bases, mainly including microRNA, piRNA, snoRNA, snRNA, tRNA and so on. Small RNAs have important regulatory functions in cells and have the potential to be used as disease diagnostic markers or drug targets. We report the results of all small RNAs in exosomes from HTNV infected/uninfected HUVECs by high-throughput sequencing technology. We find that the transcriptomes of Exo-NC group (exosomes from HTNV uninfected cells) and Exo-HV group (exosomes from HTNV infected cells) expressed distinctly different expression patterns of miRNA.
Project description:We report RNAseq analysis of control, ORAI1KO and STIM1 KO (knockout) HEK293-ACE2 cells under uninfected (mock) and SARS-CoV-2-infected conditions
Project description:Clostridium difficile is an anaerobic spore-forming rod-shaped gram-positive bacterium that can infect both humans and animals. Most studies on the pathogenesis of C. difficile have focused on its toxins and their effect on the host cells. Recently, we utilized microarrays to identify conserved and divergent genes associated with virulence in C. difficile isolates from humans and animals. Our data provided the first clue toward a complex mechanism underlying host adaptation and pathogenesis. Microarray technology offers an efficient high-throughput tool to study the transcriptional profiles of pathogens and infected host cells. Transcriptomes of C. difficile after exposure to environmental and antibiotic stresses and those of human epithelial colorectal Caco-2 cells upon TcdA treatment have been analyzed. To our knowledge, there are still no reports on the transcriptomic study of host-pathogen interactions for C. difficile infection (CDI). In vitro analyses of interplay between host and pathogen are essential to unravel the mechanisms of infection and to investigate the host response to infection. We therefore employed microarrays to study both bacterial and human cellular transcriptome kinetics during CDI to Caco-2 cells. Here we present a large-scale analysis of transcriptional profiles to reveal molecular determinants playing a role in C. difficile pathogenesis and the host response. We found that there were 254 and 224 differentially-expressed genes after CDI in C. difficile and Caco-2 cells, respectively. These genes are clustered according to their functional categories and their potential roles in pathogenesis and host response are discussed. Our results will not only increase our understanding on the host-pathogen interaction, but may also provide targets for drug development. Clostridium difficile: Control vs Infection (time course) mRNA with genomic DNA of tested and reference strains Caco-2 cells: Control vs Infected with Clostridium difficile Time-course experiments of Caco-2 cells infected with C. difficile for 30, 60 and 120 min
Project description:2-3 month old female C57Bl/6J mice were intravenously infected with 2x10^6 focus forming units of lymphocytic choriomeningitis virus strain Clone-13. Whole liver tissue was harvested in triplicates from uninfected control mice, uninfected control 123d old mice, and from infected mice at 2, 8, 30, 60, and 123 days post infection. Samples were subsequently analyzed on a HiSeq 2000 instrument using a 50 bp SE RNAseq protocol.
Project description:To understand the impact of murine rotavirus infection on mouse intestinal epithelial tissue, we isolated total intestinal epithelium from uninfected and infected C57Bl6J mice and performed single-cell RNAseq.
Project description:3 cages of 5-8 week old C57B/6 mice were placed on the antibiotic cefoperazone for 10 days followed by 2 days of reovery on plain water. One cage remained on plain water the entire time. Of the three antibiotic treated cages. One was mock infected (uninfected control), one was infected with C. difficile strain VPI 10463, while the other was infected with C. difficile strain 630. Twenty-four hours after the infection the mice were eutanized and the ceal content was collected and snap frozen in liquid nitrogen. Samples were stored in the -80 until analysis.
Project description:Mice were infected with Klebsiella pneumoniae and interstitial and alveolar macrophages isolated and subjected to single cell RNA sequencing to investigate the transcriptomes of Klebseilla-associated and uninfected bystander cells.