Genome-wide analysis of H3K4me3 in NOS1+ mouse enteric neurons
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE139479 | GEO | 2024/02/14
REPOSITORIES: GEO
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Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed HIF1A and ARNT binding by chromatin immunoprecipitation-sequencing.
2024-02-14 | GSE139477 | GEO
Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we performed transcriptome analysis using stranded total RNA-sequencing.
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Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed 3-dimensional chromosome conformation by HiC.
2024-02-14 | GSE139470 | GEO
Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed the genome-wide distribution of the histone marks H3K27ac, H3K27me3, H3K36me3, H3K4me1, and H3K4me3 by chromatin immunoprecipitation-sequencing.
2024-02-14 | GSE139478 | GEO
Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed the genome-wide distribution of CTCF, RAD21, total and S2- or S5-phosphorylated RNA polymerase II, and the histone mark H3K9ac by chromatin immunoprecipitation-sequencing.
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Project description:We analyzed transcriptome of the mushroom body cell types to identify cotransmitters of dopaminergic neurons. We found that the full-lengh splicing isoform of nitric oxide synthase (NOS1) is enriched in two types of dopaminergic neurons, and validated the results by in-situ hybridization and immunohistochemistry.
2019-11-05 | GSE139889 | GEO
Project description:This a model from the article:
Vascular and perivascular nitric oxide release and transport: biochemical pathways of neuronal nitric oxide synthase (NOS1) and endothelial nitric oxide synthase (NOS3).
Chen K, Popel AS Free Radic Biol Med.
2007 Mar 15;42(6):811-22. 17320763
,
Abstract:
Nitric oxide (NO) derived from nitric oxide synthase (NOS) is an important paracrine effector that maintains vascular tone. The release of NO mediated by NOS isozymes under various O(2) conditions critically determines the NO bioavailability in tissues. Because of experimental difficulties, there has been no direct information on how enzymatic NO production and distribution change around arterioles under various oxygen conditions. In this study, we used computational models based on the analysis of biochemical pathways of enzymatic NO synthesis and the availability of NOS isozymes to quantify the NO production by neuronal NOS (NOS1) and endothelial NOS (NOS3). We compared the catalytic activities of NOS1 and NOS3 and their sensitivities to the concentration of substrate O(2). Based on the NO release rates predicted from kinetic models, the geometric distribution of NO sources, and mass balance analysis, we predicted the NO concentration profiles around an arteriole under various O(2) conditions. The results indicated that NOS1-catalyzed NO production was significantly more sensitive to ambient O(2) concentration than that catalyzed by NOS3. Also, the high sensitivity of NOS1 catalytic activity to O(2) was associated with significantly reduced NO production and therefore NO concentrations, upon hypoxia. Moreover, the major source determining the distribution of NO was NOS1, which was abundantly expressed in the nerve fibers and mast cells close to arterioles, rather than NOS3, which was expressed in the endothelium. Finally, the perivascular NO concentration predicted by the models under conditions of normoxia was paradoxically at least an order of magnitude lower than a number of experimental measurements, suggesting a higher abundance of NOS1 or NOS3 and/or the existence of other enzymatic or nonenzymatic sources of NO in the microvasculature.
This model was taken from the CellML repository
and automatically converted to SBML.
The original model was:
Chen K, Popel AS (2007) - version02
The original CellML model was created by:
Lloyd, Catherine, May
c.lloyd@aukland.ac.nz
The University of Auckland
The Bioengineering Institute
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2005-01-01 | MODEL0491251823 | BioModels
Project description:The dysfunction of endothelial nitric oxide synthase may be involved in development of atherosclerosis; however, the underlying molecular and cellular mechanisms of atherosclerosis are poorly understood. Here, we investigated gene expressionsin relation to atherosclerosis using endothelial nitric oxide synthase (eNOS)-deficient mice.
2018-12-15 | GSE123855 | GEO
Project description:The purpose of this study is to comprehensively elucidate the role of nitric oxide and nitric oxide synthase isoforms in pulmonary emphysema using cap analysis of gene expression (CAGE) sequencing.
2021-01-18 | GSE164521 | GEO
Project description:Role of nitric oxide and nitric oxide synthase isoforms in pulmonary emphysema.
| PRJNA691047 | ENA