Gene expression profiling of the vomeronasal organs in mice selectively bred for high voluntary wheel running activity and non-selected controls
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE146644 | GEO | 2020/11/26
REPOSITORIES: GEO
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Project description:To understand the role of LSD1 in transcriptional regulation in muscle under voluntary wheel running (VWR) training, RNA-seq analyses of soleus muscles of skeletal muscle-specific LSD1 KO mice (LSD1-mKO mice) and WT mice after VWR were carried out. We found that loss of LSD1 led to increased expression of oxidative metabolism genes in soleus muscle.
2023-01-24 | GSE198827 | GEO
Project description:Gene expression profiling of the vomeronasal organs in mice selectively bred for high voluntary wheel running activity and non-selected controls
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Project description:The goals of this study were: 1) to compare the transcriptome of a mouse line selected for high voluntary wheel running and a control line, and 2) evaluate the differences in the cerebellum and in the striatum.
2018-12-25 | GSE114062 | GEO
Project description:Effects of Voluntary Running Wheel Exercise-induced Extracellular Vesicles on Anxiety
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Project description:Exercise improves brain function enhancing neuronal plasticity and cognitive enhancement. For voluntary resistance wheel running (RWR) exercise, with a load of 30% of body weight, we reported enhancement of neurogenesis and spatial memory associated with hippocampal brain-derived neurotrophic factor (BDNF) signaling compared to wheel running (WR) without a load (Lee et al., 2012; Lee et al., 2013). Despite these new evidences, mechanisms for RWR-induced improvement of hippocampal function remained to be clarified. In the present study, we have utilized the high-throughput DNA microarray approach to gain deep insight into molecular mechanisms underlying these changes that could be novel targets of RWR-induced hippocampal plasticity. To do so, whole genome (4x44K) high-density oligonucleotide microarrays were used to monitor the expression level of gene transcripts in the hippocampus of rats voluntary running for 4 weeks in comparison with sedentary animals. These rats showed a significant decrease in average running distance although average work levels immensely increased 12-fold in the RWR group, resulting in muscular adaptation for the fast-twitch plantaris muscle. DNA microarray analysis revealed that 122 (sedentary x WR) and 157 (sedentary x RWR) genes were up-regulated (> 1.5-fold change) as compared with 97 (sedentary x WR) and 467 (sedentary x RWR) down-regulated genes (< 0.75-fold change). Functional categorization using the Ingenuity Pathway Analysis (IPA) revealed expression pattern changes in the major categories of disease and disorders, molecular functions and physiological system development and function. Among these, RWR up-regulated genes such as NFATc1, AVPR1A and FGFR4, which are crucial role for neuronal development and its functions. The down-regulated inflammatory cytokines (IL1B, IL10, IL2RA, TNF) and chemokines (CXCL1, CXCL9, CXCL10, CCL2, CCL13, CCR4) might be important to neuronal dysfunction and vulnerability. Taken together, these gene candidates are suggested to play a critical role in hippocampal plasticity. This is a first study presenting not only new information into the voluntary RWR influenced transcriptome in the rat hippocampus, but also provides a hypothesis for the RWR influenced enhancement in brain function. 10-week-old male Wistar rats were randomly allocated to three groups: (1) housed in standard cages and used as non-active controls (sedentary, n = 10), (2) wheel running with no resistance (WR, n = 8), and (3) housed in cages with resistance running wheels with an adjustable resistance (RWR, n = 8). Rats of both running wheel groups (WR and RWR) were housed individually and had free access to a specially designed running wheel apparatus for 24 h/day. Between 08:00 and 12:00 on the day after the final day of exercise, the animals were immediately decapitated using a guillotine. The hippocampi were rapidly dissected, snap frozen in liquid nitrogen and stored at —80°C prior to further analysis. The deep-frozen hippocampi were transferred to a precooled (in liquid nitrogen) mortar and ground with a pestle to a very fine powder with liquid nitrogen. Total RNA was extracted and validated followed by checking subsequently synthesized cDNA by RT-PCR. A rat 4x44K whole genome oligo DNA microarray chip was used for global gene expression analysis using the hippocampi. Fluorescently labeled targets of Sed, WR and RWR samples were hybridized to the same microarray slide with 60-mer probes. A flip labeling (dye swap or reverse labeling with Cy3 and Cy5 dyes) procedure was followed to nullify the dye bias associated with unequal incorporation of the two Cy dyes into cDNA. Briefly, to select differentially expressed genes, we identified genes that were up regulated in chip 1 (Cy3/Cy5 label for sedentary and WR, respectively) but down regulated in chip 2 (Cy3/Cy5 label for WR and sedentary, respectively) for the hippocampus. The same selection criteria were applied for chips 3-4 (sedentary and RWR). Hybridization and wash processes were performed according to the manufacturer’s instructions, and hybridized microarrays were scanned using an agilent microarray scanner. The functional and network analysis were generated through the use of IPA (Ingenuity® Systems, www.ingenuity.com). To validate gene changes in array data and test the BDNF signaling-related molecules and expression of select transcripts were determined by quantitative real-time RT-PCR.
2014-10-09 | E-GEOD-52516 | biostudies-arrayexpress
Project description:Exercise improves brain function enhancing neuronal plasticity and cognitive enhancement. For voluntary resistance wheel running (RWR) exercise, with a load of 30% of body weight, we reported enhancement of neurogenesis and spatial memory associated with hippocampal brain-derived neurotrophic factor (BDNF) signaling compared to wheel running (WR) without a load (Lee et al., 2012; Lee et al., 2013). Despite these new evidences, mechanisms for RWR-induced improvement of hippocampal function remained to be clarified. In the present study, we have utilized the high-throughput DNA microarray approach to gain deep insight into molecular mechanisms underlying these changes that could be novel targets of RWR-induced hippocampal plasticity. To do so, whole genome (4x44K) high-density oligonucleotide microarrays were used to monitor the expression level of gene transcripts in the hippocampus of rats voluntary running for 4 weeks in comparison with sedentary animals. These rats showed a significant decrease in average running distance although average work levels immensely increased 12-fold in the RWR group, resulting in muscular adaptation for the fast-twitch plantaris muscle. DNA microarray analysis revealed that 122 (sedentary x WR) and 157 (sedentary x RWR) genes were up-regulated (> 1.5-fold change) as compared with 97 (sedentary x WR) and 467 (sedentary x RWR) down-regulated genes (< 0.75-fold change). Functional categorization using the Ingenuity Pathway Analysis (IPA) revealed expression pattern changes in the major categories of disease and disorders, molecular functions and physiological system development and function. Among these, RWR up-regulated genes such as NFATc1, AVPR1A and FGFR4, which are crucial role for neuronal development and its functions. The down-regulated inflammatory cytokines (IL1B, IL10, IL2RA, TNF) and chemokines (CXCL1, CXCL9, CXCL10, CCL2, CCL13, CCR4) might be important to neuronal dysfunction and vulnerability. Taken together, these gene candidates are suggested to play a critical role in hippocampal plasticity. This is a first study presenting not only new information into the voluntary RWR influenced transcriptome in the rat hippocampus, but also provides a hypothesis for the RWR influenced enhancement in brain function.
2014-10-09 | GSE52516 | GEO
Project description:<1. The vomeronasal organ (VNO) in the nose of most tetrapods is a sensory structure for the detection of pheromones and kairomones (intra-specific and inter-specific chemical signals) that initiate innate behaviours. It has two neuronal layers, each expressing distinct receptor sub-families coupled to different G-proteins. Neurones in the apical layer express a single vomeronasal receptor type 1 and the G?i2 G-protein. On the other hand, neurons in the basal layer express two or more vomeronasal receptors type-2 (V2Rs) and the G?o G-protein. In mice, V2Rs are organized into four families, A, B, D and C, with family-A and -C sub-divided into subfamilies A1-A10 and C1-C2. These gene families are expressed in a unique combinatorial pattern. Families A (subfamilies A1-A6), B and D are expressed monogenically and coexpress with the recently expanded family-C2 (6 genes, Vmn2r2 to Vmn2r7). While neurons expressing the phylogenetically ancient subfamily-C2 (1 gene, Vmn2r1) coexpress with family-BD and subfamilies A8-A10.We have generated a knock-out mouse for gene Vmn2r1 gene, using a Eucomm tm1b allele. This mouse is a valuable resource for further understanding the molecular organization of the VNO and its behavioural implications, in an evolutionary context. We propose here, to sequence the VNO of Vmn2r1 mutant mice. By studying the VNO transcriptome we hope to advance our knowledge of the genetic coding of pheromonal communication. This data is part of a pre-publication release. For information on the proper use of pre-publication data shared by the Wellcome Trust Sanger Institute (including details of any publication moratoria), please see http://www.sanger.ac.uk/datasharing/
2015-10-20 | E-ERAD-402 | biostudies-arrayexpress
Project description:The vomeronasal organ (VNO) of mice contains two main types of vomeronasal sensory neurons (VSNs)- Apical and Basal. Apical VSNs express vomeronasal receptors (VRs) of the V1R family and project to the anterior accessory olfactory bulb (AOB) and VSNs in the basal portions of the epithelium express receptors of the V2R family and project to the posterior portion of the AOB. In the vomeronasal epithelium of mice we found active BMP signaling. By generating Smad4 conditional mutants we disrupted canonical TGF-b/BMP signaling in either maturing basal VSNs or in mature apical and basal VSNs.
2019-07-19 | GSE134492 | GEO
Project description:To undertake transcriptome-wide microarray analysis to develop a view of molecular adaptations that may underpin any benefit associated with the mild exercise regime of voluntary running Total RNA obtained from isolated whole hearts subjected to 7 days of voluntary exercise compared to sedentary control hearts (n=6/group).
2011-11-01 | E-GEOD-32391 | biostudies-arrayexpress
Project description:The vomeronasal organ of mice consists of two major types of vomeronasal sensory neurons (VSNs) expressing either receptors of the V1R or V2R family. V1R and V2R VSNs form from a common pool of progenitors but have distinct differentiation programs. We analyzed single cell RNA sequencing data of adult VNO and identified differential expression of Notch1 receptor and Dll4 ligand among the neuronal precursors at the VSN dichotomy. We further demonstrated that Notch signaling is required for effective differentiation of V2R+ basal VSNs.
2022-06-06 | GSE190330 | GEO