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Expression data of mRNA from normal utricle and vestibular flat epithelium of adult mice

ABSTRACT: Expression data of mRNA from normal utricle and vestibular flat epithelium of adult mice

PROVIDER: PRJNA742039 | ENA |

REPOSITORIES: ENA

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Expression data of mRNA from normal utricle and vestibular flat epithelium of adult mice

Project description:The vestibular sensory epithelium may degenerate into a layer of flat cells, known as flat epithelium, after a severe lesion, but the pathogenesis of vestibular flat epithelium remains unclear. We used microarrays to detail the global programme of gene expression in normal utricle and vestibular flat epithelium and identified whether epithelial-mesenchymal transition participite in this process

2021-09-30 | GSE179063 | GEO

Cell-type identity of the avian utricle

Project description:The avian utricle, a vestibular organ of the inner ear, displays turnover of sensory hair cells throughout life. This is in sharp contrast to the mammalian utricle, which shows limited regenerative capacity. Here, we use single-cell RNA-sequencing to identify distinct marker genes for the different sensory hair cell subtypes of the chicken utricle, which we validated in situ . We provide markers for spatially distinct supporting cell populations, and identified two transitional cell populations of dedifferentiating supporting cells and developing hair cells. Trajectory reconstruction resulted in an inventory of gene expression dynamics of natural hair cell generation in the avian utricle.

2022-09-07 | GSE212831 | GEO

Expression data from chick cochlea and utricle

Project description:Inner ear auditory and vestibular tissues differ in their responses to mechanical stimuli. Chick cochlea and utricle sensory epithelia were microdissected at E20-E21. RNA was extracted and cRNA hybridized to Affymetrix microarrays.

2012-01-01 | E-GEOD-32272 | biostudies-arrayexpress

Transcriptomic and epigenetic regulation of hair cell regeneration in the mouse utricle and its potentiation by Atoh1

Project description:The mammalian cochlea loses its ability to regenerate new hair cells prior to the onset of hearing. In contrast, the adult vestibular system can produce new hair cells in response to damage, or by reprogramming of supporting cells with the hair cell transcription factor Atoh1. We used RNA-seq and ATAC-seq to probe the transcriptional and epigenetic responses of utricle supporting cells to damage and Atoh1 transduction. We show that the improved regenerative response of the utricle correlates with a more accessible chromatin structure in utricle supporting cells compared to their cochlear counterparts. We also provide evidence that Atoh1 transduction of supporting cells is able to promote increased transcriptional accessibility of some hair cell genes. Our study offers a possible explanation for regenerative differences between sensory organs of the inner ear, but shows that additional factors to Atoh1 may be required for optimal reprogramming of hair cell fate.

2019-04-30 | GSE121610 | GEO

Rat utricle hair bundles and whole utricles—LTQ

Project description:Purified utricle hair bundles and utricular epithelium from P3-P7 rat inner ears were analyzed by LC-MS/MS to determine the abundant and enriched proteins of the hair bundle. This dataset used a Thermo LTQ mass spectrometer for protein detection.

2015-11-17 | PXD002416 | Pride

Mouse utricle hair bundles and whole utricles—Velos

Project description:Purified utricle hair bundles and utricular epithelium from P21-P25 mouse inner ears were analyzed by LC-MS/MS to determine the abundant and enriched proteins of the hair bundle. This dataset used a Thermo LTQ Velos mass spectrometer for protein detection.

2015-11-17 | PXD002415 | Pride

Cell Specific Transcriptional Responses to Heat Shock in the Mouse Utricle Epithelium

Project description:Cell Specific Transcriptional Responses to Heat Shock in the Mouse Utricle Epithelium

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Epithelial-Mesenchymal Transition Participates in the Formation of Vestibular Flat Epithelium.

Project description: Not available

| S-EPMC8719593 | biostudies-literature

Identification of potential downstream targets of GATA3 in the avian utricle

Project description:This SuperSeries is composed of the following subset Series: GSE14783: Gallus gallus utricle striola vs. extra-striola GSE14784: GATA3 overexpression in utricle sensory epithelia GSE14785: GATA3 siRNA in utricle sensory epithelia Refer to individual Series

2010-06-24 | E-GEOD-14792 | biostudies-arrayexpress

DNA copy number changes in colorectal flat adenomas

Project description:Background & aim: Flat adenomas form a specific phenotype of colorectal adenomas that has been associated with more severe molecular changes and consequently a more aggressive clinical behavior compared to their polypoid counterparts. In the present study we set out to compare one of the molecular changes most explicitly associated with adenoma to carcinoma progression, i.e. chromosomal instability, between flat and polypoid colorectal adenomas. Methods: Consecutive series of 83 flat and 35 polypoid adenomas were analyzed for DNA copy number changes using a high resolution arrayCGH platform as well as for mutations in the adenomatous polyposis coli (APC) gene. Gene ontology on the genes located on the significantly different regions was performed. Results: Overall, flat adenomas show similar DNA copy number changes as polypoid adenomas. Patterns of DNA copy number changes differed between the two phenotypes with significantly more frequently loss of 5q14.3 and 5q15-q23.3 in flat adenomas, while loss of 1p36.32-p35.3, 10q25.2-q25.3, 17p12 and chromosome 18 were more frequent in polypoid adenomas. The 5q15-q23.3 region harbors the APC locus, therefore mutation status of APC was investigated, showing significantly less mutations in flat adenomas. Pathway analysis and datamining linked the 5q region to inflammation. Conclusion: These results provide evidence that flat and polypoid adenomas have partly overlapping DNA copy number changes, while alterations more specific to flat adenomas have associations with inflammation. Loss of 5q has been associated with aggressive behavior and this could serve as an explanation for a more aggressive clinical behavior of flat lesions.

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