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Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the mouse.

ABSTRACT: Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the mouse.

PROVIDER: PRJNA940463 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR23689035_1.fastq.gz	Fastqsanger.gz
	SRR23689035_2.fastq.gz	Fastqsanger.gz
	SRR23689036_1.fastq.gz	Fastqsanger.gz
	SRR23689036_2.fastq.gz	Fastqsanger.gz

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Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the rat.

Project description:The response of the vestibular ganglion neurons to the stress or loss of their presynaptic hair cells (HC) is not understood. This understanding is necessary because the survival and functional competence of these neurons will determine the outcome of any intervention aiming at repair or regeneration of the HC. One existing observation is that of uncoupling of the synapse between the HCs and ganglion neurons following subchronic ototoxic exposure in rodent models. We here studied the expression response of the vestibular ganglion associated with this synaptic uncoupling.

2023-12-12 | GSE226516 | GEO

Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the mouse.

2023-12-12 | GSE226515 | GEO

Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the rat.

Project description:Effect of subchronic ototoxic (3,3'-iminodipropionitrile - IDPN) exposure on the vestibular ganglion of the rat.

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Effect of subchronic ototoxicity on the vestibular ganglion in rodents

Project description:Effect of subchronic ototoxicity on the vestibular ganglion in rodents

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Gene expression study of developing mammalian vestibular organ of wild type and Insulin-Like Growth Factor I deficient mice using Affymetrix whole transcript arrays

Project description:Insulin like growth factor 1 (IGF-1) has a central role in mammalian hearing and hearing loss. The auditory and vestibular systems form the inner ear and have a common developmental origin. During chicken early development IGF-1 modulates neurogenesis of the cochleovestibular ganglion but no further studies have been conducted to explore the potential role of IGF-1 in the vestibular system. In this study we have compared the whole transcriptome of the vestibular organ from wild type and Igf1-/- mice at different developmental times. RNA was prepared from E18.5, P15 and P90 vestibular organs of Igf1-/- and Igf1+/+ mice and the transcriptome analyzed in triplicates using Affymetrix® Mouse Gene 1.1 ST Array Plates.

2015-01-23 | E-GEOD-65202 | biostudies-arrayexpress

Effect of subchronic ototoxicity on the vestibular ganglion in rodents

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-12-12 | GSE226517 | GEO

Gene expression study of developing mammalian vestibular organ of wild type and Insulin-Like Growth Factor I deficient mice using Affymetrix whole transcript arrays

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Identification of miRNAs that regulate vestibular compensation

Project description:To investigate which miRNAs regulate the vestibular compensation after unilateral vestibular deafferentiation (UVD), we have performed microarray for miRNAs as a discovery platform. UVD induces breakdown of the activity of ipsilesional vestibular nuclei and an unbalance of activity between bilateral vestibular nuclei. Vestibular compensation is a course of rebalancing of activities of bilateral vestibular nuclei. It takes place mainly in medial vestibular nucleus. This study was performed using seven week-old-male Sprague–Dawley rats. Based on our previous experiment about vestibular compensation course, we set two time points for harvesting medial vestibular nuclei: 4hr and 4 days after unilateral vestibular deafferentiation. Twenty four animals were divided into two experimental groups: UVD group undergoing UVD at left side (n = 12); and SO group undergoing sham operation (SO) at left side (n=12). Six animals of each group were anesthetized deeply and euthanized at 4 hr or 4 days after surgery, respectively. Medial vestibular nucleus at left side was harvested. Medial vestibular nucleus from three animals became one sample for microarray. Sequentially two samples were obtained for each time point in one group. Microarray for miRNAs was performed using the Agilent Rat miRNA Microarray 8x15K platforms. Considering the fold change of normalized signal intensities between two time points in UVD group and between UVD and SO groups at the same time, miR-31a-5p, 133a-3p, 133b-3p, 204-5p, 206-3p, 218a-5p, 219a-5p, 221-3p and 497-5p were selected as the candidate miRNAs. This result was validated by quantitative reverse transcription-PCR.

2018-02-27 | GSE93111 | GEO

Developmental profiling of spiral ganglion neurons reveals insights into auditory circuit assembly

Project description:The sense of hearing depends on the faithful transmission of sound information from the ear to the brain by spiral ganglion (SG) neurons. However, how SG neurons develop the connections and properties that underlie auditory processing is largely unknown. We catalogued gene expression in mouse SG neurons at six developmental stages, ranging from embryonic day 12 (E12), when SG neurons first extend projections, up until postnatal day 15 (P15), after the onset of hearing. For comparison, we also analyzed the closely-related vestibular ganglion (VG) at the same time points.

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Microarray Analysis in Vestibular Schwannomas

Project description:Vestibular Schwannomas are benign neoplasms that arise from the vestibular nerve. The hallmark of these tumors is the biallelic inactivation of NF2. Transcriptomic alterations, such as the Nrg1/ErbB2 pathway, have been described in Schwannomas. Here, we have performed a whole transcriptomic analysis in 31 vestibular Schwannomas and 9 control nerves in the Affymetrix Gene 1.0ST platform, validated by quantitative Real-Time PCR using TaqMan Low Density Arrays. We performed a mutational analysis of NF2 by PCR/dHPLC and MLPA as well as a microsatellite marker analysis of the loss of heterozygosity of chromosome 22q. The microarray analysis showed that 1516 genes were deregulated, and 48 of the genes were validated by qRT-PCR. At least two genetic hits (allelic loss and/or gene mutation) in NF2 were found in 16 tumors, seven cases showed one hit and eight tumors showed no NF2 alteration. As conclusion, MET and associated genes such as ITGA4/B6, PLEXNB3/SEMA5 and CAV1 showed a clear deregulation in vestibular Schwannomas. In addition, androgen receptor (AR) downregulation may denote a hormonal effect or cause in this tumor. Furthermore, the osteopontin gene (SPP1), which is involved in Merlin protein degradation, was upregulated, which suggests that this mechanism may also exert a pivotal role in Schwannoma Merlin depletion. Finally, no major differences were found between tumors of different sizes, histological types or NF2 status, which suggests that at the mRNA level all Schwannomas, regardless of molecular and clinical characteristics, may share common features that can be used in the fight against them. In order to find target to fight against vestibular schwannoma, we performed an analysis of gene expression by microarrays.

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