ABSTRACT: Transcription profiling by array of ventricles from mice with homozygous knockdown expression of the vesicular acetylcholine transporter (VAChT) and wild type controls
Project description:Wild-type (WT) C57Bl/6 and akt2-/- male mice. Keywords: RNA Expression Array Left ventricles (LV) from 12-16 week-old male wild type mice and age-matched akt2-/- mice
Project description:Truncating variants in titin can cause dilated cardiomyopathy, however, the role of missense titin variants is less clear. In humans the heterozygous titin A178D variant is associated with dilated cardiomyopathy with left ventricular non-compaction. Using CRISPR-Cas9 mediated homology-directed repair the A178D titin variant was introduced into a mouse model. Homozygous A178D mice showed features of dilated cardiomyopathy. Total RNA was extracted from the left ventricles of WT and homozygous A178D littermate control mice and RNA-sequencing performed. Different patterns of gene expression were identified in wildtype and homozygous A178D left ventricles.
Project description:AtACINUS protein is involved in regulation of alternative transcription and splicing(AS). Identifying interaction partners and protein complex compositions for AtACINUS can produce valuable information on the mechanisms by which they regulate transcription and AS, as well as post-translational modifications on AtACINUS. A homozygous 35S::AtACINUS-GFP/acinus-2 plant was selected for similar protein expression level to the endogenous AtACINUS protein of wild-type plants using a native α-AtACINUS antibody. We isolated putative AtACINUS interaction partners from young Arabidopsis seedlings using a modified LaG16LaG2 nanobody. Plants expressing TAP-GFP under 35S promoter were used as controls.
Project description:AtACINUS protein is involved in regulation of alternative transcription and splicing(AS). Identifying interaction partners and protein complex compositions for AtACINUS can produce valuable information on the mechanisms by which they regulate transcription and AS, as well as post-translational modifications on AtACINUS. A homozygous 35S::AtACINUS-GFP/acinus-2 plant was selected for similar protein expression level to the endogenous AtACINUS protein of wild-type plants using a native α-AtACINUS antibody. We isolated putative AtACINUS interaction partners from young Arabidopsis seedlings using the native α-AtACINUS antibody. Plants expressing TAP-GFP under 35S promoter were used as controls.
Project description:Cardiac lysates prepared from left ventricles of 1-year-old female wild-type mice, mice carrying the obscurin R4344Q mutation, and mice carrying obscurin lacking the Ig58/59 domains (ΔIg58/59) were subjected to isobaric tandem-mass tagging, liquid chromatography, and mass spectrometry.
Project description:The Effect of Aromatase Knockout on Gene Expression in the Mouse Lacrimal and Meibomoan Gland. Keywords: Aromatase Knockout vs Wild Type Control Lacrimal and meibomian glands were harvested from homozygous male and female aromatase knockout mice and age matched wild type controls. Tissues were pooled into 3 biological replicates and were hybridized to separate microarrays. Each cRNA prep was hybridized to a GE Healthcare/Amersham Biosciences CodeLink UniSet Mouse 20K I Bioarray and a Affymetrix GeneChip Mouse Expression Array 430A.
Project description:Paladin (Pald1, mKIAA1274 or x99384) was identified in screens for vascular-specific genes and is a putative phosphatase. We have demonstrated that paladin has a predominant vascular expression pattern and shifts from endothelial to mural cells during mouse development. We have now characterized the Pald1 knock-out mouse in a broad array of behavioral, physiological and biochemical tests. Here, we show that female, but not male, Pald1 heterozygous and homozygous knock-out mice displayed an emphysema-like phenotype with increased alveolar air spaces and impaired lung function with obstructive changes. In contrast to many other tissues where Pald1 is restricted to the vascular compartment, Pald1 is expressed in both the epithelial and mesenchymal compartments of the postnatal lung. However, in Pald1 knock-out females, there is a specific increase in apoptosis and proliferation of endothelial cells, but not in non-endothelial cells. This results in a transient reduction of endothelial cells in the maturing lung. Our data suggests that paladin is required during lung vascular development and for normal function of the developing and adult lung in a sex-specific manner. To our knowledge, this is the first report of a sex-specific effect on endothelial cell apoptosis.
Proteomic analysis of Pald1 wild type and knock-out mice reveal that most of the protein expression differences are related to sex and not genotype, supporting the notion that sex can be a major factor for lung development and disease. In addition, Pald1 wild type and knock-out mice exhibit differential expression of HPGD, hydroxyprostaglandin dehydrogenase 15 (NAD), the major enzyme for degradation of prostaglandins.
Project description:We determined duodenal and liver gene response patterns in mice with primary (Hfe ?/? and C282Y homozygous mice) and secondary iron overload versus 129S6/SvEvTac wild type controls.
Project description:Pax6 is a transcription factor that is expressed in neuroepithelial cells from the initial stage of brain development. Region specific expression of Pax6 plays pivotal roles in the developing CNS, including brain patterning, neuronal specification, neuronal migration, and axonal projection. Regarding neurogenesis, Pax6 multiply works either as to promote neuronal differentiation or cell proliferation in a highly context-dependent manner. However, no Pax6 target gene is identified as to promote proliferation and/or inhibit differentiation of neuroepithelial cells. Here, we performed comparative analysis using the Affymetrix U34A array to identify genes that are differentially expressed in the early stage of wild-type and Pax6 homozygous mutant rat (rSey2/rSey2) brains. Keywords = Pax6 transcription factor Keywords = rat Keywords = forebrain and hindbrain regions of the wild-type or Pax6 homozygous embryos Keywords = up-or down-regulated genes Keywords: ordered