Paneth cells recide in the intestinal crypt bottom and are part of the innate immunity and of the intestinal stem cell niche.
mTORC1 in the Paneth cell niche couples intestinal stem-cell function to calorie intake.
Age, Specimen part
View SamplesGene expression in intact and hypophysectomized adult mouse liver was assayed by RNA-seq analysis of total liver RNA, as part of a study of growth hormone regulation of hepatic lincRNAs. Overall design: Eight independent pools: two intact males, two intact females, two hypophysectomized males and two hypophysectomized females, comprised of total RNA isolated from 3-5 individual livers / pool, were prepared and used for unstranded RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
No sample metadata fields
View SamplesGene expression in adult male mouse liver was assayed by nuclear RNA-seq, as part of a study of hepatic lincRNAs. Overall design: Three independent pools, comprised of nuclear RNA isolated from 4 individual male livers per pool, were prepared and used for RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
No sample metadata fields
View SamplesGene expression in adult female mouse liver was assayed by nuclear RNA-seq, as part of a study of hepatic lincRNAs. Overall design: Three independent pools, comprised of nuclear RNA isolated from 4 individual livers per pool, were prepared and used for unstranded RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
No sample metadata fields
View SamplesGene expression in adult male and female mouse liver was assayed by RNA-seq, as part of a study on hepatic lincRNAs. Overall design: Total liver RNA was prepared from 12 individual male and 12 individual female mice. Four independent pools, comprised of RNA isolated from 6 individual male or female livers (2 pooled biological replicates for each sex) were then prepared and used for RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
No sample metadata fields
View SamplesGene expression in adult male and female mouse liver was assayed by RNA-seq, as part of a study on chromatin states in male and female mouse and their role in sex-biased liver gene expression (A Sugathan and DJ Waxman (2013) Mol Cell Biol. 33:3594-3610. doi: 10.1128/MCB.00280-13). Overall design: Total liver RNA was prepared from 12 individual male and 12 individual female mice. Four RNA pools, comprised of RNA isolated from 6 individual male or female livers (2 pooled biological replicates for each sex) were then prepared and used for RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
Sex, Age, Cell line, Subject
View SamplesGene expression in adult male and female mouse liver was analyzed based on nuclear RNA-seq, as part of a study on hepatic lincRNAs. Overall design: Nuclear liver RNA was prepared from 6 individual male and 6 individual female mice. Pools comprised of RNA isolated from 6 individual male or female livers (1 pool of 6 biological replicates for each sex) were then prepared and used for strand-specific RNA-seq.
Hepatic Long Intergenic Noncoding RNAs: High Promoter Conservation and Dynamic, Sex-Dependent Transcriptional Regulation by Growth Hormone.
No sample metadata fields
View SamplesWe have identified the transcription factor forkhead box protein F2 (Foxf2) to be upregulated in its expression during the EMT process and studied its functional contribution to EMT by siRNA-mediated knockdown in NMuMG cells treated for 4 days with TGFbeta followed by mRNA-sequencing. Our analysis revealed a dual role of Foxf2 during TGFbeta-induced EMT in promoting apoptosis while inducing cell junction breakdown and migration. Overall design: mRNA sequencing of NMuMG/E9 cells transfected with control siRNA or Foxf2 specific siRNA and treated with TGFbeta for 4 days
Foxf2 plays a dual role during transforming growth factor beta-induced epithelial to mesenchymal transition by promoting apoptosis yet enabling cell junction dissolution and migration.
Subject
View SamplesSucrose is a major carbon source for industrial bioethanol production by Saccharomyces cerevisiae. In yeasts, two modes of sucrose metabolism occur: (i) extracellular hydrolysis by invertase, followed by uptake and metabolism of glucose and fructose, and (ii) uptake via sucrose-H+ symport followed by intracellular hydrolysis and metabolism. Although alternative start codons in the SUC2 gene enable synthesis of extracellular and intracellular invertase isoforms, sucrose hydrolysis in S. cerevisiae predominantly occurs extracellularly. In anaerobic cultures, intracellular hydrolysis theoretically enables a 9 % higher ethanol yield than extracellular hydrolysis, due to energy costs of sucrose-proton symport. This prediction was tested by engineering the promoter and 5 coding sequences of SUC2, resulting in relocation of invertase to the cytosol. In anaerobic sucrose-limited chemostats, this iSUC2-strain showed an only 4% increased ethanol yield and high residual sucrose concentrations indicated suboptimal sucrose-transport kinetics. To improve sucrose-uptake affinity, it was subjected to 95 generations of anaerobic, sucrose-limited chemostat cultivation, resulting in a 20-fold decrease of residual sucrose concentrations and a 10-fold increase of the sucrose-transport capacity. A single-cell isolate showed an 11 % higher ethanol yield on sucrose in chemostat and batch cultures than an isogenic SUC2 reference strain, while transcriptome analysis revealed elevated expression of AGT1, encoding a disaccharide-proton symporter, and other maltose-related genes. Deletion of AGT1, which had been duplicated during laboratory evolution, restored the growth characteristics of the unevolved iSUC2 strain. This study demonstrates that engineering the topology of sucrose metabolism is an attractive strategy to improve ethanol yields in industrial processes.
Increasing free-energy (ATP) conservation in maltose-grown Saccharomyces cerevisiae by expression of a heterologous maltose phosphorylase.
No sample metadata fields
View SamplesIn contrast to urodele amphibians and teleost fish, mammals lack the regenerative responses to replace large body parts. Amphibian and fish regeneration uses dedifferentiation, i.e. reversal of differentiated state, as a means to produce progenitor cells to eventually replace damaged tissues. Therefore, activation of dedifferentiation response in mammalian tissues holds an immense promise for human regenerative medicine. msx2 expression has been shown to peak at the early time points of amphibian limb regeneration. Despite this temporal importance in the heterogenous regenerating limb tissues, the potential role of msx2 in dedifferentiation was previously not addressed in salamander or mammalian muscle cells. In order to test this, we ectopically overexpressed msx2 in mammalian myotubes and profiled their transcriptomes using next generation sequencing. We identified 4964 up-regulated and 4464 down-regulated transcripts in myotubes compared to myoblasts (uninduced GFP control cells; = 1.5 fold; FDR corrected p-values < 0.01). Upon ectopic msx2 expression in myotubes, 923 transcripts were downregulated, whereas 1283 transcripts were upregulated. Based on msx2's potential role in dedifferentiation, we reasoned that the transcripts, which are normally upregulated in myotubes in comparison to myoblasts, should go down upon msx2-expression. In accord with this idea, 575 myotube-enriched transcripts were downregulated after one day of ectopic msx2 expression. Similarly, 331 myoblast-enriched transcripts were upregulated upon msx2 expression. Overall design: To extensively analyze transcriptome-wide changes upon ectopic msx2 expression in mammalian myotubes, we performed next generation RNA-sequencing (RNA-seq) on uninduced and induced isolated myotubes that have msx2 and GFP or GFP alone transgenes. As a reference for the undifferentiated state, we also sequenced the transcriptomes of uninduced myoblast cultures of these two transgenic constructs. Deep sequencing was performed using Illumina HiSeq.
Ectopic expression of Msx2 in mammalian myotubes recapitulates aspects of amphibian muscle dedifferentiation.
No sample metadata fields
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