Project description:Abhd11 is previously identified as a conserved lipase in lipid metabolism. However, its physiological functions in embryonic stem cells (ESCs) are unknown. Based on the construction of ESC lines with conditional Abhd11 expression, we analyst the transcriptome profiling of ESCs upon Abhd11 knock-out (KO) or over-expression (OE). In Abhd11 KO ESCs, differentially expressed genes were enriched in metabolic genes while Abhd11 OE ESCs elicited a smaller transcriptional response compared to that of Abhd11 KO ESCs.
Project description:Gene expression was compared between wild type forestomach and hindstomach epithelial cells at embryonic day E14.5. Gene expression was compared between GATA4 knock out hindstomach epithelial cells and wild type hindstomach epithelial cells at embryonic day E14.5. Gene expression was compared between GATA4 knock in forestomach epithelial cells and wild type forestomach epithelial cells at embryonic day E14.5.
Project description:Purpose: Comparing the transcriptome of wild-type(N2), hlh-11 knock-out and hlh-11 over-expression worms to identify genes with differential expression. Methods: For each condition, two replicates were examined. For each sample, approximately 2,000 synchronized young adult worms were collected and resuspended in TRIzon Reagent (CW0580, CWBIO). Total RNA was isolated by chloroform extraction, followed by isopropanol precipitation. Sequencing was performed using HiSeq2500. The clean reads were aligned to WBcel235 genomes with TopHat2. Gene differential expression was analyzed using DEseq2. A threshold of p < 0.05 was set to determine differentially expressed genes. Induction (KO_up or OE_up) or suppression (KO_down or OE_down) of genes were obtained through comparing gene expressions in hlh-11 KO or OE worms to wild-type N2. Results: >86% reads were uniquely mapped. 2637 genes were significantly up regulated and 2845 genes were significantly down regulated in hlh-11 knock-out worms compared to wild-type. 107 genes were significantly up regulated and 237 genes were significantly down regulated in hlh-11 over-expression worms compared to wild-type. Conclusions: This study revealed the genes transcriptionally regulated by hlh-11.
Project description:The Nuclear Factor I C (NFI-C) transcription factor has been implicated in TGF-β signaling, extracellular matrix deposition and skin appendage pathologies. We performed a global gene expression analysis in NFI-C-/- and wild-type embryonic primary murine fibroblasts. This indicated that NFI-C acts mostly to repress gene expression in response to TGF-β1. Misregulated genes featured a prominent over-representation of regulators of connective tissue inflammation and repair. Experiment Overall Design: mRNAs were isolated from embryonic fibroblasts obtained from 3 wild-type and 3 NFI-C knock-out mice, and their levels were probed using microarrays. Prior to RNA extraction, fibroblast cultures were treated or not with TGF-β1 for 1 hour to examine the immediate response to the growth factor, or treated for 10 hours to assess the delayed response.