Genome-wide analysis of gene expression in the paraventricular nucleus of Sim1-Cre specific DNMT3a deletion mice.
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE42304 | GEO | 2014/09/01
SECONDARY ACCESSION(S): PRJNA181002
REPOSITORIES: GEO
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Project description:Analysis of gene expression in the paraventricular nucleus in the hypothalamus (PVH) of WT and Sim1-Cre specific DNMT3a deletion mice. Results provide important information about genes regulated by DNMT3a. For the gene expression profiling, total RNA was extracted from PVH of WT and Sim1-Cre specific DNMT3a deletion mice (C57BL6 background) at 6 weeks old using Qiagen RNeasy Lipid Tissue Mini Kit (Qiagen) and Phase Lock Gel (5 Prime Inc., Gaitherburg, MD). To make sure reproducibility and biological significance, triple hybridizations were performed for each genotype with the RNA from 3 indipendent PVH samples, each sample contains RNA from 5 animals. Genomics and Microarray Core Facility at UTSW (http://microarray.swmed.edu/) checked RNA quality with Bioanalyzer Chip and processed the samples for hybridization with Illumina Mouse-6 V2 BeadChip (Illumina Inc., San Diego, CA). We used GeneSpring GX (Agilent Technologies, Santa Clara, CA) for data analysis.
2014-09-01 | E-GEOD-42304 | biostudies-arrayexpress
Project description:The paraventricular hypothalamus (PVH) controls many behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for functionally-specific PVH neuron projections remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to identify unique neuronal subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to validate and map them spatially. Our spatial transcriptomic atlas resolved 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas, revealing multiple subtypes not described previously and distinct transcriptional programs between neuroendocrine and centrally-projecting neurons. Additionally, projection-based profiling determined neuronal subtypes that project to the parabrachial region (PB) and spinal cord, helping to identify PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, PB-projecting PVH neurons expressing bombesin-like receptor 3 (Brs3) induce satiety, and their silencing causes obesity. Together, this atlas fills a critical gap by contributing high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis.
2025-12-16 | GSE303080 | GEO
Project description:The paraventricular hypothalamus (PVH) controls many behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for functionally-specific PVH neuron projections remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to identify unique neuronal subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to validate and map them spatially. Our spatial transcriptomic atlas resolved 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas, revealing multiple subtypes not described previously and distinct transcriptional programs between neuroendocrine and centrally-projecting neurons. Additionally, projection-based profiling determined neuronal subtypes that project to the parabrachial region (PB) and spinal cord, helping to identify PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, PB-projecting PVH neurons expressing bombesin-like receptor 3 (Brs3) induce satiety, and their silencing causes obesity. Together, this atlas fills a critical gap by contributing high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis.
2025-12-16 | GSE303082 | GEO
Project description:The paraventricular hypothalamus (PVH) controls many behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for functionally-specific PVH neuron projections remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to identify unique neuronal subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to validate and map them spatially. Our spatial transcriptomic atlas resolved 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas, revealing multiple subtypes not described previously and distinct transcriptional programs between neuroendocrine and centrally-projecting neurons. Additionally, projection-based profiling determined neuronal subtypes that project to the parabrachial region (PB) and spinal cord, helping to identify PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, PB-projecting PVH neurons expressing bombesin-like receptor 3 (Brs3) induce satiety, and their silencing causes obesity. Together, this atlas fills a critical gap by contributing high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis.
2025-12-16 | GSE303081 | GEO
Project description:The paraventricular hypothalamus (PVH) controls many behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for functionally-specific PVH neuron projections remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to identify unique neuronal subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to validate and map them spatially. Our spatial transcriptomic atlas resolved 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas, revealing multiple subtypes not described previously and distinct transcriptional programs between neuroendocrine and centrally-projecting neurons. Additionally, projection-based profiling determined neuronal subtypes that project to the parabrachial region (PB) and spinal cord, helping to identify PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, PB-projecting PVH neurons expressing bombesin-like receptor 3 (Brs3) induce satiety, and their silencing causes obesity. Together, this atlas fills a critical gap by contributing high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis.
2025-12-16 | GSE303185 | GEO
Project description:The paraventricular hypothalamus (PVH) controls many behavioral and physiologic processes, including appetite, social behavior, autonomic outflow, and pituitary hormone secretion. However, molecular markers for functionally-specific PVH neuron projections remain largely undefined, and a complete census of PVH cell types has not been established. Therefore, we performed extensive single-cell/nucleus RNA sequencing to identify unique neuronal subtypes and multiplexed error-robust fluorescence in situ hybridization (MERFISH) to validate and map them spatially. Our spatial transcriptomic atlas resolved 26 Sim1+ and 29 GABAergic neuron populations from the PVH and surrounding areas, revealing multiple subtypes not described previously and distinct transcriptional programs between neuroendocrine and centrally-projecting neurons. Additionally, projection-based profiling determined neuronal subtypes that project to the parabrachial region (PB) and spinal cord, helping to identify PVH populations that regulate satiety and sympathetic nervous system activity, respectively. Notably, PB-projecting PVH neurons expressing bombesin-like receptor 3 (Brs3) induce satiety, and their silencing causes obesity. Together, this atlas fills a critical gap by contributing high-resolution PVH spatial and circuit-based gene expression profiles, representing a valuable resource for the field of homeostasis.
2025-12-16 | GSE303083 | GEO
Project description:The paraventricular hypothalamus (PVH) is crucial for food intake control, yet the presynaptic mechanisms underlying PVH neurons remain unclear. Here, we show that RUVBL2 in the PVH is significantly reduced during energy deficit, and knockout (KO) of PVH RUVBL2 results in hyperphagic obesity in mice. RUVBL2-expressing neurons in the PVH (PVHRUVBL2) exert the anorexigenic effect by projecting to the arcuate hypothalamus, the dorsomedial hypothalamus, and the parabrachial complex. We further demonstrate that PVHRUVBL2 neurons form the synaptic connections with POMC and AgRP neurons in the ARC. PVH RUVBL2 KO impairs the excitatory synaptic transmission by reducing presynaptic boutons and synaptic vesicles near active zone. Finally, RUVBL2 overexpression in the PVH suppresses food intake and protects against diet induced obesity. Together, this study demonstrates an essential role for PVH RUVBL2 in food intake control, and suggests that modulation of synaptic plasticity could be an effective way to curb appetite and obesity.
2024-10-02 | GSE249791 | GEO
Project description:Synaptic plasticity has been shown to participate in control of energy homeostasis.The paraventricular hypothalamus (PVH) is crucial for satiety control, though the underlying synaptic mechanisms remain unclear. Here, we show that RUVBL2 in the PVH is significantly reduced during energy deficit, and knockout (KO) of PVH RUVBL2 leads to hyperphagic obesity. We further show that KO of PVH RUVBL2 impairs the excitatory synaptic transmission by reducing presynaptic boutons and altering synaptic vesicle distribution. Chromatin immunoprecipitation-sequencing (ChlP-seq) data show that RUVBL2 binds to the promoters of numerous genes related to synaptic plasticity, in particular synaptic vesicle and neuron axonogenesis. Meanwhile, RNA-seq data show significant changes in the expression of some genes in these two pathways. Together, this study demonstrates an essential role for PVH RUVBL2 in food intake control, and suggests that modulating synaptic plasticity could be an effective way to curb appetite and obesity.
2024-10-02 | GSE252308 | GEO
Project description:The paraventricular hypothalamic nucleus (PVH) is a key site for integrating neuroendocrine, autonomic, and behavioral adjustments to diverse homeostatic challenges, including physiological (e.g., infection or hemorrhage) and emotional [e.g., restraint (RST) or footshock] stresses. Both types of challenges ultimately converge to activate common response systems represented in PVH, including the hypothalamo-pituitary-adrenal axis and the sympathoadrenal system. Oligonucleotide microarrays (U74A; Affymetrix, Santa Clara, CA) were used to compare and contrast gene expression profiles in the PVH elicited at 1 and 3 hr after acute exposure to representative physiological [intraperitoneal injection of 10 microg lipopolysaccharide (LPS)] and emotional (30 min RST) stressors. In general, the two challenges recruited relatively few genes in common, with the degree of overlap varying across functional classes of genes. The greatest degree of commonality was seen among signaling molecules and neuropeptides, whereas transcription factors upregulated by RST and LPS were largely distinct. Unexpectedly, RST induced a number of immune-related molecules, which were not regulated by LPS. Hybridization histochemical analyses localized a subset of responsive transcripts to the PVH and/or immediately adjoining regions. Immunerelated molecules in particular distributed broadly to vascular and other barrier-associated cell types. These global transcriptional profiles inform the search for early (transcription factors) and late (target genes) mechanisms in the modulation of PVH, and generalized CNS, responses to categorically distinct stressors.
2007-11-01 | E-GEOD-367 | biostudies-arrayexpress
Project description:The purpose of this study was to identify miRNA that are differentially regulated in the arcuate nucleus of the hypothaamus (ARC) and paraventricular nucleus of the hypothalamus (PVH) after perinatal exposure to maternal obesity.
2024-03-13 | GSE261455 | GEO