Aeromonas caviae has been associated with human gastrointestinal disease. Strains of this species typically lack virulence factors (VFs) such as enterotoxins and hemolysins that are produced by other human pathogens of the Aeromonas genus. Microarray profiling of murine small intestinal extracts, 24 hours after oral infection with an A. caviae strain, provides evidence of a Th1 type immune response. A large number of gamma-interferon (-IFN) induced genes are up-regulated as well as several tumor necrosis factor-alpha (TNF-) transcripts. A. caviae has always been considered an opportunistic pathogen because it lacks obvious virulence factors. This current effort suggests A. caviae colonizes murine intestinal tract and causes what has been described by others as a dysregulatory cytokine response leading to an irritable bowel-like syndrome. This response would explain why a number of diarrheal waterborne outbreaks have been attributed to A. caviae even though it lacks obvious enteropathogenic properties.
Aeromonas caviae strain induces Th1 cytokine response in mouse intestinal tract.
No sample metadata fields
View SamplesHow secondary CD4 T cell effectors, derived from resting memory cells, differ from primary cells, derived from nave precursors, and how such differences impact recall responses to pathogens is unknown.
Memory CD4+ T-cell-mediated protection depends on secondary effectors that are distinct from and superior to primary effectors.
Specimen part
View SamplesAims: To assess the virulence of multiple Aeromonas spp. using two models, a neonatal mouse assay and a mouse intestinal cell culture.
Evaluating virulence of waterborne and clinical Aeromonas isolates using gene expression and mortality in neonatal mice followed by assessing cell culture's ability to predict virulence based on transcriptional response.
No sample metadata fields
View SamplesHow IL-2 produced by secondary CD4 T cell effectors, derived from resting memory cells, impacts memory CD4 T cell function and survival to memory following antigen re-encounter is unknown.
Effector CD4 T-cell transition to memory requires late cognate interactions that induce autocrine IL-2.
Treatment, Time
View SamplesCtla4-/- mice suffer from a severe autoimmunity characterized by indiscriminate self-reactive T cell activation. Itk-/-Ctla4-/- (DKO) mice are protected from lethal autoimmunity despite a fulminant autoimmune process in the LNs as self-reative T cells fail to migrate to destroy tissues.
CD28 and ITK signals regulate autoreactive T cell trafficking.
Age, Specimen part
View SamplesPurpose:Ovarian cancer has a high recurrence and mortality rate. A barrier to improved outcomes includes a lack of accurate models for preclinical testing of novel therapeutics.
Tumorgrafts as in vivo surrogates for women with ovarian cancer.
No sample metadata fields
View SamplesWe combined the nuclear run-on (NRO) assay which labels and captures nascent transcripts with high throughput DNA sequencing to examine transcriptional activity in Saccharomyces cerevisiae. Overall design: Examination of nascent transcripts and steady-state transcripts in exponentially growing and heat-shock treated yeast.
Genome-Wide Analysis of Nascent Transcription in Saccharomyces cerevisiae.
Cell line, Treatment, Subject
View SamplesRhoBTB2 is a novel Rho GTPase that undergoes loss, underexpression and mutation in breast and lung cancer. We have shown that we can mimic loss of RhoBTB2 through siRNA treatment of primary cells. We propose to perform comparative microarray analysis of primary lung cells to establish the identification of the gene targets of RhoBTb2 regulation.
The atypical Rho GTPase RhoBTB2 is required for expression of the chemokine CXCL14 in normal and cancerous epithelial cells.
No sample metadata fields
View SamplesTo obtain a comprehensive view of genes contributing to long-term memory we performed mRNA sequencing from single Drosophila heads following behavioral training that produces long-lasting memory. Overall design: Drosophila trained with an appetitive conditioning paradigm using Sucrose were collected prior to starvation, training, and 1 or 4 hours post-training, 5 to 6 replicates each, for RNA-Seq analysis of the fly heads with an Illumina HiSeq 2000.
Antimicrobial peptides modulate long-term memory.
Specimen part, Subject
View SamplesGenome-wide profiling establishes that human cytomegalovirus (HCMV) exerts an extensive, unforeseen level of specific control over which cellular mRNAs are recruited to or excluded from polyribosomes.
Global reprogramming of the cellular translational landscape facilitates cytomegalovirus replication.
Specimen part, Disease, Treatment
View Samples