Project description:Developmental differences in gene expression in the postnatal mouse cochlear nucleus was analyzed at two or three ages using two different array platforms, the Affymetrix Mouse 430A GeneChip or the NIA 15K mouse cDNA microarray. These ages, P7, P14, and P21 parallel a critical period of neuron survival dependent on input from the auditory nerve. Keywords: parallel sample
Project description:Mouse ovarian surface epithelial (MOSE) cells were isolated from adult C57BL6 female mice and cultured during 28 passages in a standard medium. Total RNA was analyzed with NIA-15K microarrays.
Project description:We have carried out microarray-based gene expression analysis of cell subpopulations isolated by flow cytometry, on the basis of staining with antibodies against CD45, CD49f, Sca-1 and the 33A10 antigen, from freshly prepared mouse mammary glands. RNA isolated from cell populations was co-hybridised with control mouse RNA on to an in-house (Breakthrough Breast Cancer Centre) cDNA mouse microarray containing 13825 features (NIA 15K Mouse cDNA clone set). LIMMA analysis was used to analyse data and determine changes in RNA expression levels.
Project description:3 different ES cell lines were compared in order to determine whether there are significant expression profile differences between ES cell lines, or whether the constraints of maintaining pluripotency in culture force a similar expression profile on cell lines derived from disparate sources. Our results indicate that the latter is more likely. We identified 21 genes that were significantly differentially regulated, either on comparison with the pooled control, or on direct comparison of individual ES cell line data from different slides. Using semi-quantitative RT-PCR on 3 separate isolates from each cell line, we have confirmed 4 of these genes as consistently differentially regulated, Hprt, and 3 others. We would conclude therefore that different ES cell lines at the same passage number in identical culture conditions show very similar expression profiles. Keywords: cell type comparison Cardiff University Array Facility NIA 15K slides were used in conjunction with 3 different RNA isolates from each of the ES cell lines. A pooled control was assembled using equal quantities of cells from each cell line, RNA was extracted and labelled, for use on every slide. Fluor switches were carried out, and 12 replicates were used for each cell line (3 biological replicates). The ES cell lines were each derived from different sources; IMT11 cells are derived from 129 strain mice. HM1 cells are also derived from 129 mice, but are missing a functional copy of Hprt. SHBl6.3 cells are derived from the less permissive C57Bl6/J mouse strain. Data were analysed as described in the GSM submissions.
Project description:Liver and BAT expression differences between the fat F-line, and congenic Fob3b-line. Normalised data appended as follows: TABLE 1: LIVER - 1st set (7.5K) of the 2 slide NIA NIH 15K set -source1 = F-line liver male - 2 pools each made from 5 different individuals -source2 = Fob3b-line (aka Fchr15D-line) liver male - 2 pools each made from 5 different individuals -values are normalised using mixed model across 6 slides: 1 F-line vs Fline 2 Fob3b-line vs Fob3b-line 3 F-line pool1 vs Fob3b-line pool1 4 F-line pool1 vs Fob3b-line pool1 -dye swap 5 F-line pool2 vs Fob3b-line pool2 6 F-line pool2 vs Fob3b-line pool2 -dye swap TABLE 2: LIVER - 2nd set (7.5K) of the 2 slide NIA NIH 15K set -source1 = F-line liver male - 2 pools each made from 5 differnt individuals -source2 = Fob3b-line (aka Fchr15D-line) liver male - 2 pools each made from 5 differnt individuals -values are normalised using mixed model across 6 slides: 1 F-line Vs F-line 2 Fob3b-line vs Fob3b-line 3 F-line pool1 vs Fob3b-line pool2 4 F-line pool1 vs Fob3b-line pool2 dye swap 5 F-line pool2 vs Fob3b-line pool1 6 F-line pool2 vs Fob3b-line pool1 dye swap TABLE 3: Brown Adipose Tissue (BAT) 1st (7.5K) array set of 15K NIA NIH set -source1 = F-line male BAT from 2 pools each made from 5 different individuals -source2 = Fob3b-line (aka Fchr15D-line) male BAT from 2 pools each made from 5 different individuals -values are normalised using mixed model across 4 slides: 1 F-line pool1 vs Fob3b-line pool1 2 F-line pool1 vs Fob3b-line pool1 dye swap 3 F-line pool2 vs Fob3b-line pool2 4 F-line pool2 vs Fob3b-line pool2 dye swap TABLE 4: Brown Adipose Tissue (BAT) 2nd (7.5K) array of the 15K NIA NIH set -source1 = F-line male BAT (2 pools each from 5 individual mice) -source2 = Fob3b-line (aka Fchr15D-line) male BAT (2 pools each from 5 individual mice) -values are normalised using mixed model across 4 slides: 1 F-line pool1 vs Fob3b-line pool1 2 F-line pool1 vs Fob3b-line pool1 dye swap 3 F-line pool2 vs Fob3b-line pool2 4 F-line pool2 vs Fob3b-line pool2 dye swap Keywords = Obesity Keywords = Fob3b Keywords = QTL Keywords = congenic Keywords: other
Project description:Branchiomotor neurons are an important class of cranial motor neurons that innervate the branchial-arch-derived muscles of the face, jaw and neck. They arise in the ventralmost progenitor domain of the rhombencephalon characterized by expression of the homeodomain transcription factors Nkx2.2 and Phox2b. Phox2b in particular plays a key role in the specification of branchiomotor neurons. In its absence, generic neuronal differentiation is defective in the progenitor domain, and no branchiomotor neurons are produced. Conversely, ectopic expression of Phox2b in spinal regions of the neural tube promotes cell cycle exit and neuronal differentiation and at the same time induces genes and an axonal phenotype characteristic for branchiomotor neurons. How Phox2b exerts its pleiotropic functions, both as a proneural gene and a neuronal subtype determinant, has remained unknown. To gain further insight into the genetic programme downstream of Phox2b we searched for novel Phox2b-regulated genes by cDNA microarray (here NIA 15k slides) analysis of facial branchiomotor neuron precursors from heterozygous and homozygous Phox2b mutant embryos. Keywords: Phox2b-regulated genes identification
Project description:Branchiomotor neurons are an important class of cranial motor neurons that innervate the branchial-arch-derived muscles of the face, jaw and neck. They arise in the ventralmost progenitor domain of the rhombencephalon characterized by expression of the homeodomain transcription factors Nkx2.2 and Phox2b. Phox2b in particular plays a key role in the specification of branchiomotor neurons. In its absence, generic neuronal differentiation is defective in the progenitor domain, and no branchiomotor neurons are produced. Conversely, ectopic expression of Phox2b in spinal regions of the neural tube promotes cell cycle exit and neuronal differentiation and at the same time induces genes and an axonal phenotype characteristic for branchiomotor neurons. How Phox2b exerts its pleiotropic functions, both as a proneural gene and a neuronal subtype determinant, has remained unknown. To gain further insight into the genetic programme downstream of Phox2b we searched for novel Phox2b-regulated genes by cDNA microarray (here NIA 15k slides) analysis of facial branchiomotor neuron precursors from heterozygous and homozygous Phox2b mutant embryos. Keywords: Phox2b-regulated genes identification Four biological replicates each in dye swap