Expression data from Integrin-linked kinase (ILK)-deficient epidermis
Ontology highlight
ABSTRACT: ILK is essential for proper development of hair follicles, and for epidermal integrity and repair after injury. To better understand the pathways modulated by ILK in the epidermis, we compared the transcriptomes of ILK-deficient and -expressing epidermis using microarray analyses. Ilktm1Star (with floxed Ilk alleles) and Tg(KRT14-cre)1Amc/J mice were bred, and the resulting mice were bred again with Ilktm1Star mice, to generate animals heterozygos for the KRT14-cre transgene and either heterozygous (ILK-expressing) or homozygous (ILK-deficient) for the floxed Ilk alleles. The epidermis of 3 day-old animals was harvested and used to prepare RNA for the microarrays. The animals used were littermates. RNA from the epidermis of five ILK-deficient and five ILK-expressing mice were used.
Project description:ILK is essential for proper development of hair follicles, and for epidermal integrity and repair after injury. To better understand the pathways modulated by ILK in the epidermis, we compared the transcriptomes of ILK-deficient and -expressing epidermis using microarray analyses.
Project description:To investigate the role of Nir in epidermis during embryogenesis, we crossed mice harboring conditional Nir alleles with the Krt14-Cre deleter strain, which results in Cre-mediated loss of Nir selectively in epidermis. Transciptome analysis of keratinocytes obtained from control and knock-out mice at E15.5 revealed 4393 genes differentially expressed between Nir knock-out and control mice (p-value<10-2). At E17.5, we found 5673 differentially expressed genes.
Project description:To determine if Sox9 was sufficient to drive mucous differentiation in the gastric epithelium, we bred mice carrying alleles for ROSA26rtTA.IRES.EGFP, TetO-Sox9, and Fgf20Cre.GFP. In these mice, cells expressing Cre will induce rtTA from the ROSA26rtTA.IRES.EGFP allele. To explore transcriptional changes following adult misexpression of Sox9, we isolated RNA from the corpus of Fgf20Cre.GFP/Cre.GFP; ROSA26rtTA.IRES.EGFP/rtTA.IRES.EGFP; TetO-Sox9 pup (misexpression animals) and ROSA26rtTA.IRES.EGFP/rtTA.IRES.EGFP; TetO-Sox9 pup (control) animals and performed RNA-sequencing.
Project description:β-catenin signaling is required for hair follicle development, but it is unknown whether it is sufficient to activate expression of hair follicle genes in embryonic skin. To address this we profiled gene expression in epidermis from E15.5 KRT14-Cre Ctnnb1(Ex3)fl/+ embryos carrying an activating mutation in epithelial beta-catenin, and control littermate embryos. Experiment Overall Design: Total epidermal RNA from two KRT14-Cre Ctnnb1(Ex3)fl/+ and two control littermate E15.5 embryos was hybridized to Affymetrix GeneChip Mouse Genome MOE430 2.0 oligonucleotide microarrays. Experiment Overall Design: Appended below is Table S1: Full list of differentially expressed genes in KRT14-Cre Ctnnb1(Ex3)fl/+ mutant compared with control littermate epidermis at E15.5, including normalization and filter parameters. Fold change, listed in the second column, gives the ratio of normalized control : mutant transcript levels.
Project description:We sequenced mRNA from FACS purified hair follicle bulge stem cells from 21 d old control and ILK-deficient mice, 3 biological replicates each Examination of mRNA levels in control and ILK-deficient hair follicle bulge stem cells
Project description:To investigate gene targets of the E-proteins HEB and E2A during the CD4+CD8+ double positive (DP) stage of T cell development. We examined E-protein function by simultaneous removal of both HEB (Tcf12) and E2A (Tcfe2a) genes at the DP stage. This was done by crossing mice containing HEB floxed and E2A floxed alleles to a CD4Cre background (Tcf12f/fTcfe2af/fCD4Cre mice). Microarray analysis was used to compare gene expression in HEB and E2A double deficient DP thymocytes (Cre+) to Cre- control DP thymocytes. Keywords: genetic modification
Project description:Global gene expression analysis revealed that genes up regulated in Rosa26CreERTM; Brg1floxed/floxed embryos (Rosa26CreERTM; Brg1floxed/floxed hereafter referred as Brg1d/d that is designated for deleted Brg1floxed/floxed alleles in embryos) negatively regulate cell cycle progression, and cell growth.