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Expression data from mesodermal Tbx1-knockout ears at E12.5

ABSTRACT: The T-box transcription factor Tbx1 is expressed in the otic vesicle and surrounding periotic mesenchyme during inner ear development. Mesenchymal Tbx1 is essential for inner ear development, with conditional mutants displaying defects in both auditory and vestibular systems. We have previously identified reduced expression of retinoic acid metabolic genes in the periotic mesenchyme of mesoderm conditional Tbx1 mutants, using the T-Cre mouse line, implicating retinoic acid in mesenchymal-epithelial signaling downstream of Tbx1 in the periotic mesenchyme. In order to identify downstream effectors of mesenchymal-epithelial signaling downstream of mesenchymal Tbx1, we have utilized a gene profiling approach comparing embryonic day 12.5 periotic tissue from T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and conditional heterozygous control litter mates (control).

ORGANISM(S): Mus musculus

PROVIDER: GSE34062 | GEO | 2013/01/01

SECONDARY ACCESSION(S): PRJNA156509

REPOSITORIES: GEO

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Expression data from mesodermal Tbx1-knockout otic vesicles at E11.5

Project description:The T-box transcription factor Tbx1 is expressed in the otic vesicle and surrounding periotic mesenchyme during inner ear development. Mesenchymal Tbx1 is essential for inner ear development, with conditional mutants displaying defects in both auditory and vestibular systems. We have previously identified reduced expression of retinoic acid metabolic genes in the periotic mesenchyme of mesoderm conditional Tbx1 mutants, using the T-Cre mouse line, implicating retinoic acid in mesenchymal-epithelial signaling downstream of Tbx1 in the periotic mesenchyme. In order to identify downstream effectors of mesenchymal-epithelial signaling downstream of mesenchymal Tbx1, we have utilized a gene profiling approach comparing embryonic day 11.5 otic vesicle tissue from T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and conditional heterozygous control litter mates (control). E11.5 T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and control (T-Cre conditional Tbx1 heterozygotes) embryos were microdissected to isolate the otic vesicle. Left and right ears from 3 embryos of the same genotype were pooled for each chip.

2013-01-01 | E-GEOD-34064 | biostudies-arrayexpress

Expression data from mesodermal Tbx1-knockout ears at E12.5

Project description:The T-box transcription factor Tbx1 is expressed in the otic vesicle and surrounding periotic mesenchyme during inner ear development. Mesenchymal Tbx1 is essential for inner ear development, with conditional mutants displaying defects in both auditory and vestibular systems. We have previously identified reduced expression of retinoic acid metabolic genes in the periotic mesenchyme of mesoderm conditional Tbx1 mutants, using the T-Cre mouse line, implicating retinoic acid in mesenchymal-epithelial signaling downstream of Tbx1 in the periotic mesenchyme. In order to identify downstream effectors of mesenchymal-epithelial signaling downstream of mesenchymal Tbx1, we have utilized a gene profiling approach comparing embryonic day 12.5 periotic tissue from T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and conditional heterozygous control litter mates (control). E12.5 T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and control (T-Cre conditional Tbx1 heterozygotes) embryos were microdissected to isolate the otic vesicle and surrounding periotic mesenchyme. Left and right tissue from each individual embryo was pooled, and 5 control and 5 mutant embryos were analyzed on individual microarrays using Affymetrix Mouse Gene ST 1.0 chips.

2013-01-01 | E-GEOD-34062 | biostudies-arrayexpress

Expression data from mesodermal Tbx1-knockout otic vesicles and periotic mesenchyme at E11.5

Project description:The T-box transcription factor Tbx1 is expressed in the otic vesicle and surrounding periotic mesenchyme during inner ear development. Mesenchymal Tbx1 is essential for inner ear development, with conditional mutants displaying defects in both auditory and vestibular systems. We have previously identified reduced expression of retinoic acid metabolic genes in the periotic mesenchyme of mesoderm conditional Tbx1 mutants, using the T-Cre mouse line, implicating retinoic acid in mesenchymal-epithelial signaling downstream of Tbx1 in the periotic mesenchyme. In order to identify downstream effectors of mesenchymal-epithelial signaling downstream of mesenchymal Tbx1, we have utilized a gene profiling approach comparing embryonic day 11.5 otic vesicle and surrounding periotic mesenchyme from T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and conditional heterozygous control litter mates (control). This data was used in conjunction with OV-only data (GSE34064) to identify expression changes within the periotic mesenchyme. E11.5 T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and control (T-Cre conditional Tbx1 heterozygotes) embryos were microdissected to isolate the otic vesicle and surrounding periotic mesenchyme. Left and right ears from 3 embryos of the same genotype were pooled for each chip, and 3 biological replicates of each chip were performed.

2013-01-01 | E-GEOD-34065 | biostudies-arrayexpress

Expression data from mesodermal Tbx1-knockout otic vesicles at E11.5

2013-01-01 | GSE34064 | GEO

Expression data from mesodermal Tbx1-knockout otic vesicles and periotic mesenchyme at E11.5

Project description:The T-box transcription factor Tbx1 is expressed in the otic vesicle and surrounding periotic mesenchyme during inner ear development. Mesenchymal Tbx1 is essential for inner ear development, with conditional mutants displaying defects in both auditory and vestibular systems. We have previously identified reduced expression of retinoic acid metabolic genes in the periotic mesenchyme of mesoderm conditional Tbx1 mutants, using the T-Cre mouse line, implicating retinoic acid in mesenchymal-epithelial signaling downstream of Tbx1 in the periotic mesenchyme. In order to identify downstream effectors of mesenchymal-epithelial signaling downstream of mesenchymal Tbx1, we have utilized a gene profiling approach comparing embryonic day 11.5 otic vesicle and surrounding periotic mesenchyme from T-Cre-mediated conditional Tbx1 mutants (Mest-KO) and conditional heterozygous control litter mates (control). This data was used in conjunction with OV-only data (GSE34064) to identify expression changes within the periotic mesenchyme.

2013-01-01 | GSE34065 | GEO

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and Tbx1-nmf219/nmf219 inner ear Transcriptomes

Project description:Purpose: The goal of this study is to compare the expression profile of wild type and Tbx1-nmf219/nmf219 mice with NGS-derived inner ear transcriptome profiling (RNA-seq) Methods: inner ear mRNA profiles of E16.5 wild-type (WT) and Tbx1-nmf219/nmf219mice were generated by RNA-seq Results: Using an optimized data analysis workflow, we mapped about 30 million sequence reads per sample to the mouse genome and identified transcripts in the inner ear of WT and Tbx1nmf219/nmf219 mice. Approximately 10% of the transcripts showed differential expression between the WT and Tbx1nmf219/nmf219 inner ear, with a fold change ≥1.5 and p value <0.05. Conclusions: Our study represents the detailed analysis of inner ear transcriptomes, with biologic replicates, generated by RNA-seq technology.

2019-10-01 | GSE134756 | GEO

Expression profiling of cochlear ducts from P8 Gfi1cre/+ and Gfi1+/+ mice

Project description:The Gfi1-Cre mouse is commonly used for conditional hair cell-specific gene deletion/activation in the inner ear. However, we have shown that these mice produce a pattern of recombination that is not strictly limited to hair cells, and that Gfi1cre/+ mice exhibit an early onset progressive hearing loss as compared with their wildtype littermates. Here we performed a transcriptome analysis of Gfi1cre/+ and Gfi1+/+ cochlea to detect potential changes in gene expression that could contribute to their hearing loss phenotype, or that could potentially confound downstream analysis of conditional gene deletion using these mice.

2017-03-09 | GSE85519 | GEO

Expression data from Pou4f3-Rb1 cKO and control inner ear

Project description:Retinoblastoma gene (Rb1) is required for proper cell cycle exit in the developing mouse inner ear and its deletion in the embryo leads to proliferation of sensory progenitor cells that differentiate into hair cells and supporting cells. In the Pou4f3-Cre:Rb1 flox/flox (Rb1 cKO) inner ear, utricular hair cells differentiate and survive into adulthood whereas differentiation and survival of cochlear hair cells are impaired. To comprehensively survey the pRb pathway in the mammalian inner ear, we performed microarray analysis of Rb1 cKO cochlea and utricle. P6 or 2-month control and Rb1 cKO littermates were euthanized and the inner ear tissues were dissected. Total RNA was extracted from the pooled samples. Technical duplicates of the pooled RNA were used for microarray.

2011-05-31 | E-GEOD-25732 | biostudies-arrayexpress

Expression data from Pou4f3-Rb1 cKO and control inner ear

2011-06-01 | GSE25732 | GEO

Microarray expression profiling of discrete microdissected mouse inner ear tissues from E9 to E15 at half-day intervals.

Project description:The inner ear in mammals is derived from a simple ectodermal thickening called the otic placode. Through a series of complex morphological changes, the placode forms the mature inner ear comprising of the auditory organ (cochlea) and the vestibular/balance organs (utricle, saccule, and three semi-circular canals). The vast majority of genes known to be involved during inner ear development have been found through mutational screens or by chance. To identify genes that can serve as novel candidates required for inner ear development, and also candidate genes for uncloned human deafnesses, inner ear tissues from mouse embryos from E9 to E15 were microdissected and expression-profiled at half-day intervals. Also profiled was the non-inner ear mesenchymal tissue surrounding the inner ear tissue. Various patterns of gene expression were identified, and significant biological pathways that these genes represented were identified. Also identified were mouse genes whose human orthologs are located within uncloned non-syndromic deafness intervals, thus serving as candidates for sequence analysis. Keywords: Developmental timecourse

2007-08-14 | GSE7536 | GEO

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