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RNA sequencing data describing transcriptional changes in aorta of ApoE-/- mice after alpha 7 nicotinic acetylcholine receptor (α7nAChR) stimulation.

ABSTRACT: This manuscript is a companion paper to Ulleryd M.U. et al (1). Data shown here include RNA sequencing data from whole aorta of ApoE-/- mice treated with the alpha 7 nicotinic acetylcholine receptor (α7nAChR) agonist AZ6983 for 8 weeks using subcutaneously implanted osmotic minipumps. 1. Ulleryd MA, Mjornstedt F, Panagaki D, Yang LJ, Engevall K, Gutierrez S, et al. Stimulation of alpha 7 nicotinic acetylcholine receptor (α7nAChR) inhibits atherosclerosis via immunomodulatory effects on myeloid cells Re-submitted. 2019.

ORGANISM(S): Mus musculus

PROVIDER: GSE131162 | GEO | 2019/10/29

REPOSITORIES: GEO

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α7 Nicotinic Acetylcholine Receptor Regulates Macrophage-Mediated Neuroinflammation in Dry Eye Disease

Project description:Patients with dry eye disease (DED) often exhibit neurological abnormalities and may even suffer from neuropathic pain and pain-related anxiety or depression. However, addressing nerve abnormalities in DED remains a formidable challenge, as current therapies fail to halt disease progression. Our study found that activating α-7 nicotinic acetylcholine receptor (α7nAChR), a pivotal regulator in the anti-inflammatory pathway connecting the nervous and immune systems, effectively restores corneal epithelium integrity and enhances nerve sensitivity in DED, pointing to its promising therapeutic potential. Furthermore, we have revealed that α7nAChR stimulates genes involved in immune-mediated inflammatory progression and neuroregulation, inhibits the expression of transient receptor potential vanilloid-1 (TRPV1), reinstates corneal nerve density, and alleviates anxiety-like behaviors associated with severe DED by downregulating the proportion of CD86+ M1 macrophages (pro-inflammatory phenotypes). In summary, our findings underscore the activation of α7nAChR as a pioneering therapeutic approach for preserving corneal nerves balance and controlling inflammation in DED.

2024-04-07 | GSE263136 | GEO

α7 nicotinic acetylcholine receptor signaling modulates fetal sheep brain astrocytes transcriptome in response to endotoxin stress: comparison to microglial transcriptome and implications for autism spectrum disorder

Project description:Neuroinflammation in utero may result in lifelong neurological disabilities. Astrocytes play a pivotal role, but the mechanisms are poorly understood. No early postnatal treatment strategies exist to enhance neuroprotective potential of astrocytes. We hypothesized that agonism on α7 nicotinic acetylcholine receptor (α7nAChR) in fetal astrocytes will augment their neuroprotective transcriptome profile, while the antagonistic stimulation of α7nAChR will achieve the opposite. Using an in vivo - in vitro model of developmental programming of neuroinflammation induced by lipopolysaccharide (LPS), we validated this hypothesis in primary fetal sheep astrocytes cultures re-exposed to LPS in presence of a selective α7nAChR agonist or antagonist. Our RNAseq findings show that a pro-inflammatory astrocyte phenotype acquired in vitro by LPS stimulation is reversed with α7nAChR agonistic stimulation. Conversely, antagonistic α7nAChR stimulation potentiates the pro-inflammatory astrocytic phenotype. Furthermore, we conduct a secondary transcriptome analysis against the identical α7nAChR experiments in fetal sheep primary microglia cultures and against the Simons Simplex Collection for autism spectrum disorder and discuss the implications.

2019-04-29 | GSE123713 | GEO

whole brains from nicotinic acetylcholine receptor subunit mutant mice and littermate controls

Project description:Studies using mice with beta4 nicotinic acetylcholine receptor (nAChR) subunit deficiency (beta4-/- mice) helped reveal the roles of this subunit in bradycardiac response to vagal stimulation, nicotine-induced seizure activity and anxiety. In order to identify genes that might be related to beta4-containing nAChRs activity, we compared the mRNA expression profiles of brains from beta4-/- and wild-type mice using Affymetrix U74Avr2 microarray. Keywords: knockout mice, nicotinic acetylcholine receptor

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2021-10-11 | PXD028484 | Pride

RNA sequencing data describing transcriptional changes in aorta of ApoE-/- mice after alpha 7 nicotinic acetylcholine receptor (α7nAChR) stimulation.

Project description:RNA sequencing data describing transcriptional changes in aorta of ApoE-/- mice after alpha 7 nicotinic acetylcholine receptor (α7nAChR) stimulation.

| PRJNA542796 | ENA

α7 nicotinic acetylcholine receptor signaling modulates the inflammatory phenotype of fetal brain microglia: first evidence of interference by iron homeostasis.

Project description:We sequenced mRNA from 7 microglia extracted from sheep fetuses exposed to LPS, agonist and antagonist of α7 nicotinic acetylcholine receptor to determine signaling pathway through modeling of α7 during inflammation.

2017-08-11 | GSE101857 | GEO

Alpha7 Nicotinic Acetylcholine Receptor Mediates Chronic Nicotine Inhalation-Induced Cardiopulmonary Dysfunction

Project description:Alpha7 Nicotinic Acetylcholine Receptor Mediates Chronic Nicotine Inhalation-Induced Cardiopulmonary Dysfunction

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Alpha7 Nicotinic Acetylcholine Receptor Mediates Chronic Nicotine Inhalation-Induced Cardiopulmonary Dysfunction

Project description:Purpose: The goal of this study is to compare the effects of inhaled nicotine on aortic gene expression and the role of the alpha7 nicotinic acetylcholine receptor (alpha7-nAChR) in mediating the nicotine effects. Methods: WT and alpha7-nAChR knockout (KO) mice at 5-month of age were exposed to nicotine vapor or room air for a total of 12 weeks. Total RNA was extracted from thoracic aortas using RNeasy Plus mini kit followed by library preparation using SMART-Seq v4 Ultra Low Input RNA Kit. Illumina next generation sequencing was performed using the NextSeq 500 system with the high output flow cell (up to 800 M paired end reads). Results: A total of 179 differentially expressed genes (149 upregulated and 30 downregulated, adjusted P-value < 0.1) were found in thoracic aortas from WT mice exposed to nicotine vapor compared to those exposed to room air. In contrast, only 7 non-overlapping genes were found to be differentially expressed in alpha7-nAChR KO mice exposed to nicotine compared to the air controls. Conclusions: Our study suggests that nicotine-induced changes in vascular gene expression is largely mediated by the alpha7-nAChR.

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Transcription profiling of brains from wild type and beta4 nicotinic acetylcholine receptor (nAChR) subunit deficient mice to identify genes that might be related to beta4-containing nAChRs activity

Project description:Studies using mice with beta4 nicotinic acetylcholine receptor (nAChR) subunit deficiency (beta4-/- mice) helped reveal the roles of this subunit in bradycardiac response to vagal stimulation, nicotine-induced seizure activity and anxiety. In order to identify genes that might be related to beta4-containing nAChRs activity, we compared the mRNA expression profiles of brains from beta4-/- and wild-type mice using Affymetrix U74Avr2 microarray. Experiment Overall Design: The experimental groups included six wild-type mice and five beta4-/- mice. All mice were 6-9 weeks old. Total RNA was extracted from whole brain tissue of the mice.

2007-11-27 | E-GEOD-5320 | biostudies-arrayexpress

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