Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA142133 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE26742: Determination of the relative abundance of mRNAs in a polyribosome-associated pool GSE26745: Comparison of total and polyribosome-associated mRNA levels in male Fmr1 KO mice and male WT littermates Refer to individual Series
2011-07-20 | E-GEOD-26809 | biostudies-arrayexpress
Project description:The Fragile X Mental Retardation Protein, FMRP, is thought to regulate the translation of a specific set of neuronal mRNAs on polyribosomes. Therefore, we prepared polyribosomes on sucrose gradients and purified mRNA specifically from these fractions, as well as the total mRNA levels, to determine whether a set of mRNAs might be changed in its % association with polyribosomes in the absence of FMRP in the KO mouse model. No significant differences were found, other than the Fmr1 transcript itself, in total mRNA levels or % polyribosome association that withstood multiple test correction, in P7 Fmr1 KO mouse cerebral cortex compared with WT littermates.. We prepared polyribosomes on sucrose gradients from 6 littermate pairs of Fmr1 KO and WT littermates (FVB background, P7 males, cerebral cortex) and purified RNA from both polyribosomal fractions and input to the gradient, reflecting total mRNA levels for comparison.
2011-07-20 | E-GEOD-26745 | biostudies-arrayexpress
Project description:The Fragile X Mental Retardation Protein, FMRP, is thought to regulate the translation of a specific set of neuronal mRNAs on polyribosomes. Therefore, we prepared polyribosomes on sucrose gradients and purified mRNA specifically from these fractions, as well as the total mRNA levels, to determine whether a set of mRNAs might be changed in its % association with polyribosomes in the absence of FMRP in the KO mouse model. No significant differences were found, other than the Fmr1 transcript itself, in total mRNA levels or % polyribosome association that withstood multiple test correction, in P7 Fmr1 KO mouse cerebral cortex compared with WT littermates..
2011-07-21 | GSE26745 | GEO
Project description:RNA-seq of cortical neurons deriving from two-day cultures of P1 cortex revealed that the levels of nonsense-mediated mRNA decay (NMD) targets were generally and significantly decreased in Fmr1-knockout (KO) relative to WT mice.
2021-10-25 | GSE180135 | GEO
Project description:Fragile X syndrome (FXS), the leading cause of inherited form of mental retardation and autism, is caused by the transcriptional silencing of fmr1 encoding the protein of FMRP. FMRP, acting as an RNA binding protein, FMRP is a wide expressed protein, but primarily in the brain and testis and can regulate approximately 4% of transcripts. Macroorchidism is one of the common symptoms observed both in the FXS people and mice. Thus, we analyzed the protein profiles of cerebral cortex, hippocampus and testis from both the fmr1-KO and WT mouse using a quantitative proteomics. Proteins (FMRP, RS8, RL23A and MPZ) identified by MS/MS were also verified by Western blot. Among the identified proteins, most of the significant changed proteins were downregulated in the FMRP absence. The Gene Ontology and pathway analysis revealed that the changed proteins were clustered in polyribosome and RNA binding proteins in both cerebral cortex and hippocampus, but not the same in testis. Our results provide detailed insights to the ribosome protein profiles of cerebral cortex, hippocampus and testis in the absence of FMRP. Our studies also give a better understanding of protein profile changes and underling dysregulated pathways arising from the fmr1 silencing in the FXS.
2022-02-28 | PXD005089 | Pride
Project description:Fragile X syndrome (FXS) is the most common monogenetic cause of inherited intellectual disability and autism in humans. One of the well-characterized molecular phenotypes of Fmr1 KO mice, a model of FXS, is increased translation of synaptic proteins. Although this upregulation stabilizes in the adulthood, abnormalities during the critical period of plasticity have long-term effects on circuit formation and synaptic properties. Using high-resolution quantitative proteomics of synaptoneurosomes isolated from the adult, developed brains of Fmr1 KO mice, we show differential abundance of proteins regulating postsynaptic receptor activity of glutamatergic synapse. This work includes proteomic dataset that was acquired and analyzed to quantify changes in the abundance of proteins in synaptoneurosomes (basal state, unstimulated and in vitro NMDA-R stimulated) isolated from Fmr1 KO mice and their wild-type littermates.
2024-01-26 | PXD043700 | Pride
Project description:Fragile X syndrome and tuberous sclerosis are genetic syndromes that both have a high rate of co-morbidity with autism spectrum disorders. Several lines of evidences suggest that these two monogenic disorders may converge at a molecular level through the dysfunction of activity-dependent synaptic plasticity. We utilized mouse models of these monogenic disorders to identify genome-wide transcriptional changes in cerebellum and blood and characterize the (dis-)similarity of their molecular signatures. Differentially expressed genes and enriched pathways were distinct for the two mouse models examined, with the exception of immune system related pathways. In the cerebellum of the Fmr1 knockout (Fmr1-KO) model, the neuroactive ligand receptor interaction pathway and gene sets associated with synaptic plasticity such as long term potentiation, gap junction, and axon guidance were the most significantly perturbed pathways. The phosphatidylinositol signaling pathway was significantly dysregulated in both blood and brain of Fmr1-KO mice. In both the blood and brain of the Tsc2 heterozygous mouse model, immune system related pathways, genes encoding ribosomal proteins, and glycolipid metabolism pathways were significantly perturbed. Our data suggest that distinct molecular pathways may be involved in autism spectrum disorders with known but different genetic causes, and that blood gene expression profiles of Fmr1-knockout and Tsc2+/- mice mirror some, but not all, of the perturbed molecular pathways in the brain. For the Fmr1-KO model, 10 mice, consisting of 5 KO and 5 WT mice, were profiled. Thus, 10 pairs of blood and cerebella samples were profiled. Likewise, for the Tsc+/- model, 3 transgenic and 3 WT mice were sacrificed and paired blood and cerebella samples were prepared for gene expression profiling. All samples were profiled using the Affymetrix Mouse Gene ST 1.0 ST arrays. Three factors—tissue (i.e. blood vs. cerebellum), treatment (i.e. knockout vs. wildtype), and genetic background (Fmr1-KO vs. Tsc2+/-)—were analyzed with analysis of variance (ANOVA). Subsequently, we compared blood and brain gene expression changes in Fmr1 and Tsc2 knockout mice models using WT littermates as controls using t-tests with unequal variances. The false discovery rate (FDR) was calculated using Storey and Tibshirani’s method.
2012-09-06 | E-GEOD-40630 | biostudies-arrayexpress
Project description:A series of dual-channel gene expression profiles obtained using Rosetta/Agilent Whole Mouse Genome oligonucleotide microarrays, 4 x 44K format, was used to identify sex-dependent and HNF4alpha-dependent differences in gene expression in adult mouse liver. This series is comprised of four sex-genotype combinations: adult male wild-type liver (M-WT), adult female wild-type liver (F-WT), adult male liver-specific HNF4alpha knockout liver (M-KO) and adult female liver-specific HNF4alpha knockout liver (F-KO). Four pools, each comprised of 4 randomly selected individual liver RNAs, were prepared for each sex-genotype combination. The pools were paired randomly to generate 4 separate experimental comparisons: M-WT:F-WT (first array comparison), M-WT:M-KO (second array comparison), F-WT:F-KO (third array comparison), and M-KO:F-KO (fourth array comparison). A total of 4994 HNF4alpha-dependent genes were identified, of which ~1000 fewer genes responded to the loss of HNF4alpha in female liver as compared to male liver. Moreover, 90% of the genes showing sex-specific expression in the liver were shown to lose sex specificity in HNF4alpha-deficient liver. Keywords: genetic knockout and sex response
2008-03-21 | GSE10390 | GEO
Project description:Purpose: The goals of this study are to investigate the molecular mechanism underlying FMRP-regulated maturation of newborn neurons Methods: DG tissue were isolated from 6-7 weeks old Fmr1-/y; Dcx-DsRed mice and their WT littermates. All cell populations were isolated into single cells using a Becton Dickinson FACS Aria II contained in a Biosafety Carbinet using 20 psi pressure and 100-μm nozzle aperture. 10,000 total alive or Dcx-DsRed+ alive Cells were collected directly in Trizol. Total RNA from the sorted cell was isolated using the Direct-zol™ RNA MiniPrep Kit. Strand-specific, poly(A) selected cDNA libraries were generated using Nugen Ovation® Ultralow Library Systems (Illumina) according to the manufacturer’s protocol. Cluster generation and high-throughput sequencing were performed on a HiSeq 2500 (Illumina), using the paired-end 100 bp protocol. Reads were aligned to the mouse genome GRCm38 with annotation from Gencode. Results: RNA isolated from DsRed+ cells were subjected to next generation sequencing and 519 differentially expressed (DE) genes were identified that showed significant changes (FDR-adjusted P < 0.05) between Fmr1 KO and WT cells.
2019-01-31 | GSE117111 | GEO
Project description:Total gene expression analysis was performed on constitutive H3f3b KO E12.5 MEFs relative to WT littermates. Intent was to analyze the role of H3f3b in overall gene expression.
2013-04-10 | GSE35302 | GEO