Gallus gallus
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ABSTRACT:
PROVIDER: PRJNA117713 | ENA |
REPOSITORIES: ENA
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Project description:The inner ear utilizes sensory hair cells as mechano-electric transducers for sensing sound and balance. In mammals, these hair cells lack the capacity for regeneration. Unlike mammals, hair cells from non-mammalian vertebrates, such as birds, can be regenerated throughout the life of the organism making them a useful model for studying inner ear genetics pathways. The zinc finger transcription factor GATA3 is required for inner ear development and mutations cause sensory neural deafness in humans. In the avian cochlea GATA3 is expressed throughout the sensory epithelia; however, expression is limited to the striola of the utricle. The striola corresponds to an abrupt change in morphologically distinct hair cell types and a 180° shift in hair cell orientation. We used 3 complimentary approaches to identify potential downstream targets of GATA3 in the avian utricle. Specifically we used microarray expression profiling of GATA3 knockdown by siRNA and GATA3 over-expression treatments as well as direct comparisons of GATA3 expressing cells from the striola and non GATA3 expressing cells from the extra-striola.
2009-12-25 | GSE14783 | GEO
Project description:The inner ear utilizes sensory hair cells as mechano-electric transducers for sensing sound and balance. In mammals, these hair cells lack the capacity for regeneration. Unlike mammals, hair cells from non-mammalian vertebrates, such as birds, can be regenerated throughout the life of the organism making them a useful model for studying inner ear genetics pathways. The zinc finger transcription factor GATA3 is required for inner ear development and mutations cause sensory neural deafness in humans. In the avian cochlea GATA3 is expressed throughout the sensory epithelia; however, expression is limited to the striola of the utricle. The striola corresponds to an abrupt change in morphologically distinct hair cell types and a 180° shift in hair cell orientation. We used 3 complimentary approaches to identify potential downstream targets of GATA3 in the avian utricle. Specifically we used microarray expression profiling of GATA3 knockdown by siRNA and GATA3 over-expression treatments as well as direct comparisons of GATA3 expressing cells from the striola and non GATA3 expressing cells from the extra-striola. To identify genes that are co-expressed with GATA3 at the striola reversal zone, we compared gene expression in cells micro-dissected from the sensory epithelia of the chick utricle striola to cells from the surrounding extra-striola. There are 2 biological samples and experiments include technical replicates as well as dye-switches for a total of 8 microarrays.
2009-12-24 | E-GEOD-14783 | biostudies-arrayexpress
Project description:The genes involved in inner ear development have yet to be fully characterized. Previous gene-based analyses have primarily focused on the early developmental stages following induction and initial formation of the inner ear. The inner ear continues to grow and develop until the auditory and vestibular systems reach full maturity; all of the genes involved in this process have yet to be identified. The aim of this study is to identify additional candidate genes for inner ear development. Microarrays were used to produce expression profiles from the post-metamorphic juvenile stage of the Xenopus laevis inner ear.
2017-08-01 | GSE69546 | GEO
Project description:Next Generation Sequencing Facilitates identification of genes differentially expressed during feather elongation
| PRJNA341275 | ENA
Project description:The inner ear continues to grow and develop until the auditory and vestibular systems reach full maturity and all of the genes involved in this process have yet to be identified. Previous gene based analysis have primarily focused on the early developmental stages following induction and initial formation of the inner ear. The aim of this study is to identify new candidate genes for inner ear development. Microarrays were used to produce expression profiles from larval stages 56,57,58 of the Xenopus laevis inner ear. The data produced from this work represent an annotated resource that can be utilized by the Xenopus community to provide candidates for further functional analysis. Xenopus inner ears were isolated from larval animals for RNA extraction and hybridization to Affymetrix GeneChip microarrays.
2016-02-29 | E-GEOD-73829 | biostudies-arrayexpress
Project description:Identification of differentially expressed genes in MDV-transformed cells lines treated with sodium butyrate
| PRJNA399841 | ENA
Project description:To determine the mechanism through which PD0325901(PD) promotes inner ear hair cells generation, we cultured the inner ear organoids in 1 μM PD or the same volume of DMSO for 10 days, after which we used RNA-seq to establish a database to analyze differentially expressed genes .
2024-03-20 | GSE261682 | GEO
Project description:The inner ear continues to grow and develop until the auditory and vestibular systems reach full maturity and all of the genes involved in this process have yet to be identified. Previous gene based analysis have primarily focused on the early developmental stages following induction and initial formation of the inner ear. The aim of this study is to identify new candidate genes for inner ear development. Microarrays were used to produce expression profiles from larval stages 56,57,58 of the Xenopus laevis inner ear. The data produced from this work represent an annotated resource that can be utilized by the Xenopus community to provide candidates for further functional analysis.
2016-02-29 | GSE73829 | GEO
Project description:The inner ear continues to grow and develop until the auditory and vestibular systems reach full maturity and all of the genes involved in this process have yet to be identified. Previous gene based analysis have primarily focused on the early developmental stages following induction and initial formation of the inner ear. The aim of this study is to identify new candidate genes for inner ear development. Microarrays were used to produce expression profiles from larval stages 50,51,52 of the Xenopus laevis inner ear. The data produced from this work represent an annotated resource that can be utilized by the Xenopus community to provide candidates for further functional analysis.
2016-12-31 | GSE73828 | GEO
Project description:Waardenburg syndrome (WS) is a autosomal dominant inherited disorder characterized by sensorineural hearing loss (SNHL) and pigment abnormalities. SOX10 is one of its main pathogenicity genes. In vitro generation of patient-specific induced pluripotent stem cells (iPSCs) is an effective approach for exploring the mechanisms of human disease. Here, we established an iPSCs from a WS patient with SOX10 mutation and differentiated it into induced neural crest cells (NCCs), the key cell type involves in inner ear development. Compared with control-derived iPSCs, the SOX10 mutant iPSCs showed significantly decreased efficiency of development and differentiation potential at the stage of NCCs. We then performed high-throughput RNA-seq and examined the transcriptional misregulation at each stage. The transcriptome analysis differentiated NCCs reveals widespread gene expression changes and the differentially expressed genes(DEGs) were enriched with gene ontology (GO) of neuron migration, skeletal system development, multicellular organism development, which indicate the important role of SOX10 plays in the differentiation of NCCs. It's worth noting that, a significant enrichment among the nominal DEGs for genes implicated in inner ear development was found, as well as several genes related to the inner ear morphogenesis. Based on protein-protein interaction（PPI）net work, we selected four candidate genes that may be regulated by SOX10 in inner ear development: BMP2, LGR5, GBX2 and GATA3. In conclusion, the SOX10 deficiency in this WS patient has a significant impact on the gene expression patterns during the development of NCCs. The DEGs most significantly enriched the inner ear development and morphogenesis could help explain the underlying basis for the inner ear malformation seen in WS patient.
2021-06-04 | GSE176101 | GEO