Transcript data from livers from fasted-state BXD strains on chow or high fat diet
Multilayered genetic and omics dissection of mitochondrial activity in a mouse reference population.
Specimen part
View SamplesPublication Title: DNA methylation alters transcriptional rates of differentially expressed genes and contributes to pathophysiology in mice fed a high fat diet. It is now well established that an intrauterine environment altered by overnutrition or malnutrition can change gene expression patterns through epigenetic mechanisms that may persist through generations. However, it is less clear if overnutrition alters epigenetic control of gene expression in adults, or if whether such mechanisms contribute to the pathology of obesity. Here we test the hypothesis that exposure to a high fat diet alters hepatic DNA methylation and gene expression patterns, and explore the contribution of such changes to the pathophysiology of overnutrition. RNA-seq and targeted high-throughput bisulfite DNA sequencing were used to undertake a systematic analysis of the hepatic response to a high fat diet. A subset of genes was found whose expression levels were altered in concert with DNA methylation changes. Using chromatin immunoprecipitation of RNA polymerase, we determined that hypermethylation correlated with decreased transcription of two of the genes, Phlda1 and Onecut1. A subnetwork of these genes and their nearest neighbors was generated from an existing Bayesian gene network that contained numerous hepatic regulatory genes involved in lipid and body weight homeostasis. Hepatic-specific depletion of Phlda1 in mice decreased the genes in the subnetwork, and led to increased oil droplet size in standard chow-fed mice, an early indicator of steatosis, validating the contribution of this gene to the phenotype. Overall design: 14 mice fed either a high fat/high sucrose (n=7) or low fat/low sucrose (n=7) diet.
DNA methylation alters transcriptional rates of differentially expressed genes and contributes to pathophysiology in mice fed a high fat diet.
Specimen part, Subject
View SamplesWe have previously identified hundreds of human islet lncRNAs. Here we functionally characterise 12 such lncRNAs in EndoC-betaH1 cells through loss of function studies.
Human Pancreatic β Cell lncRNAs Control Cell-Specific Regulatory Networks.
Cell line
View SamplesMicroarray Analysis of Human Whole Blood and Intestinal Biopsy Samples from a Phase 2b, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Study of Ustekinumab in Crohns Disease
A functional genomics predictive network model identifies regulators of inflammatory bowel disease.
Sex, Age, Specimen part, Disease, Treatment
View SamplesThis study focuses on inflammatory bowel disease gene expression profiling. Surgical specimens from 134 patients undergoing bowel resection for inflammatory bowel disease (IBD) and non IBD controls at Mount Sinai Medical Center were collected as the source of tissue. Control samples (CLs) were harvested from normal non inflamed bowel located more than 10 cm away from the tumor from patients undergoing bowel resection for sporadic colon cancer. Ulcerative colitis (UC) and Crohn’s (CD) patient samples were all isolated from areas containing moderate to severe inflammation. The diagnostic pathology report for each specimen was provided by the Mount Sinai Hospital Pathology Department. Patients with UC and patients with CD shared common medications including corticosteroids, infliximab, azathioprine, and mesalamine. Overall design: Surgical specimens from 134 patients undergoing bowel resection for inflammatory bowel disease (IBD) and non IBD controls at Mount Sinai Medical Center were collected as the source of tissue. Control samples (CLs) were harvested from normal non inflamed bowel located more than 10 cm away from the tumor from patients undergoing bowel resection for sporadic colon cancer. Ulcerative colitis (UC) and Crohn’s (CD) patient samples were all isolated from areas containing moderate to severe inflammation. The diagnostic pathology report for each specimen was provided by the Mount Sinai Hospital Pathology Department. Patients with UC and patients with CD shared common medications including corticosteroids, infliximab, azathioprine, and mesalamine. The samples were collected fresh and the tissue was further processed for isolation. A representative 0.5 cm tissue fragment was isolated from the collected surgical specimen samples, flash frozen and stored at -80C. Tissue was homogenized in Trizol following the manufacturer''s protocol (Life Technologies) and RNA extraction was performed. RIN scores >7 were used for Poly A RNA-seq.
A functional genomics predictive network model identifies regulators of inflammatory bowel disease.
Sex, Subject
View SamplesEffect of the cytokinin BA on wt and arr1,10,12 mutant seedlings
Type B response regulators of Arabidopsis play key roles in cytokinin signaling and plant development.
Age, Specimen part
View SamplesCharacterization of gene expression changes in HuH7 HCC cells upon treatment with the Jumonji KDM inhibitor, JIB-04, GSK-J4 and SD-70. Overall design: Comparison of gene expression changes between HuH7 cells treated with JIB-04, GSK-J4 or SD-70 vs. DMSO
A comprehensive study of epigenetic alterations in hepatocellular carcinoma identifies potential therapeutic targets.
Sex, Age, Treatment, Race, Subject
View SamplesGWAT store most of the TAG in mice, ob/ob mice is an obese mice. Ob/ob/Fsp27-/- mice are lean when compared with ob/ob mice. The GWAT weight was dramatically reduced in ob/ob/Fsp27-/- mice.
Insulin resistance and white adipose tissue inflammation are uncoupled in energetically challenged Fsp27-deficient mice.
Sex, Age, Specimen part
View Samplesphenotypic reprogramming ability of teh zebtafish brain microenviroment on GBM derived cells controlled by the activation of endogenous Wnt pathway
Wnt activation promotes neuronal differentiation of glioblastoma.
Specimen part, Time
View SamplesHuman Immunodeficiency Virus (HIV) associated nephropathy (HIVAN) is characterized clinically by both nephrosis and by rapidly progressive kidney dysfunction. HIVAN is characterized histologically by both collapsing focal segmental glomerulosclerosis and prominent tubular damage. Neutrophil Gelatinase Associated Lipocalin (NGAL) is known to be rapidly expressed in distal segments of the nephron at the onset of different types of acute kidney injury, but few studies have examined NGAL in chronic kidney disease models. We found that urinary NGAL (uNGAL) was highly expressed by patients with biopsy proven HIVAN, whereas HIV+ patients without HIVAN demonstrated lower levels. uNGAL was also highly expressed in the TgFVB mouse model of HIVAN, which demonstrated NGAL gene expression in dilated, microcystic segments of the nephron. These data show that NGAL is markedly upregulated in the setting of HIVAN, and suggest that uNGAL levels may provide a non-invasive screening test to detect HIVAN related tubular disease.
Urinary NGAL marks cystic disease in HIV-associated nephropathy.
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