OBJECTIVE: To characterize the hormonal milieu and adipose gene expression in response to catch-up growth (CUG), a growth pattern associated with obesity and diabetes risk, in a mouse model of low birth weight (LBW). RESEARCH DESIGN AND METHODS: ICR mice were food restricted by 50% from gestational days 12.5-18.5, reducing offspring birth weight by 25%. During the suckling period, dams were either fed ad libitum, permitting CUG in offspring, or food restricted, preventing CUG. Offspring were killed at age 3 weeks, and gonadal fat was removed for RNA extraction, array analysis, RT-PCR, and evaluation of cell size and number. Serum insulin, thyroxine (T4), corticosterone, and adipokines were measured.
Accelerated postnatal growth increases lipogenic gene expression and adipocyte size in low-birth weight mice.
Sex, Age, Specimen part
View Sampleswe used technique that allows the molecular characterization of particular neuronal subpopulations based on their neuroanatomical projections and the locations of their cell bodies. This 'retro-TRAP' (translating ribosome affinity purification from retrogradely labeled neurons) approach relies on viral injection into an anatomical area targeted by the neurons of interest, followed by selective precipitation of ribosomes from retrogradely labeled cell bodies, and subsequent RNAseq analysis. Overall design: By comparing the mRNAs enriched in the NGC neurons which are retrogradely labeled due to viral injection into central thalamus, to gene expression of non-labeled surrounding cells in NGC, and then performing a comprehensive bioinformatics analysis of these results, we were able to identify genes enriched in these cells. This procedure allowed us to highlight genes and pathways unique to these neurons with projections ascending to thalamus, as compared to other cells in reticular NucleusGigantocellularis.
Molecular profiling of reticular gigantocellularis neurons indicates that eNOS modulates environmentally dependent levels of arousal.
Sex, Specimen part, Cell line, Subject
View SamplesWe undertook an integrative technological approach to compare miRNA detection capability of three high-throughput commercial platforms. Overall design: We artificially introduced human precursor, 2’-O-methyl modified and mature spiked-in miRNAs in a controlled fashion into native human placenta total RNA.
Differences in microRNA detection levels are technology and sequence dependent.
Subject
View SamplesWe examined the effects of TNFa and Spt5, the major DSIF subunit, on nascent and mature transcripts using RNA-Seq of chromatin-associated and cytoplasmic transcripts. Overall design: RNA was extracted from the cytosolic and chromatin fractions of control and Spt5 KD cells that were treated with TNFa for 1 hour
Analysis of Subcellular RNA Fractions Revealed a Transcription-Independent Effect of Tumor Necrosis Factor Alpha on Splicing, Mediated by Spt5.
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View SamplesRecently, a frequent chromosomal aberration fusing Androgen regulated TMPRSS2 promoter and the ERG gene (T/ERG) was discovered in prostate cancer. Several studies demonstrated cooperation between the T/ERG and other defective pathways in cancer progression however, the biological mechanism by which the T/ERG operates is yet to be determined. Using immortalized prostate epithelial cells (EP) model we were able to show that EP with the combination of androgen receptor(AR) and T/ERG(EP-AR T/ERG cell line) demonstrate an Epithelial to Mesenchymal Transition (EMT) manifested by a mesenchyme-like morphological appearance and behavior.
TMPRSS2/ERG promotes epithelial to mesenchymal transition through the ZEB1/ZEB2 axis in a prostate cancer model.
Specimen part, Cell line
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sex, Age, Specimen part, Treatment
View SamplesNK cells are innate immune cells that recognize and kill foreign, virally-infected and tumor cells without the need for prior immunization. NK expansion following viral infection is IL-2 or IL-15-dependent.
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sex, Age, Specimen part, Treatment
View SamplesNK cells are innate immune cells that recognize and kill foreign, virally-infected and tumor cells without the need for prior immunization. NK expansion following viral infection is IL-2 or IL-15-dependent.
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sex, Age, Specimen part
View SamplesCD8+T cells are immune cells that recognize foreign antigens on infected and tumor cells, leading to cytokine-dependent expansion and activation of cytotoxicity towards the targets.
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sex, Age, Specimen part
View SamplesCD8+T cells are immune cells that recognize foreign antigens on infected and tumor cells, leading to cytokine-dependent expansion and activation of cytotoxicity towards the targets.
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sex, Age, Specimen part
View Samples