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Treatment of noise-induced hearing loss by mesenchymal stromal cells: an RNAseq analysis of protective/repair pathways

ABSTRACT: Treatment of noise-induced hearing loss by mesenchymal stromal cells: an RNAseq analysis of protective/repair pathways

PROVIDER: PRJNA777289 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16706982.fastq.gz	Fastqsanger.gz
	SRR16706983.fastq.gz	Fastqsanger.gz
	SRR16706984.fastq.gz	Fastqsanger.gz
	SRR16706985.fastq.gz	Fastqsanger.gz
	SRR16706986.fastq.gz	Fastqsanger.gz

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Treatment of noise-induced hearing loss by mesenchymal stromal cells: an RNAseq analysis of protective/repair pathways

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Cochlear single-cell gene expression profiles in mice with noise-induced hidden hearing loss and noise-induced hearing loss.

Project description:Noise-induced hidden hearing loss (HHL) is a new type of hearing loss that has been identified in recent years and leads to insidious damage to the cochlea, unlike the well-known noise-induced hearing loss (NIHL). However, the cellular and molecular basis for it remains to be elucidated. Here, we established a single-cell transcriptome profile of the C57BL/6J mouse cochlea, in which we describe the transcriptome changes of individual cell types within the cochlea with HHL and NIHL. Mice in the HHL group were exposed to 110 dB of noise for 2 hours, and those in the NIHL group were exposed to 115 dB of noise for 4 hours for 3 days. The cochlea was taken 6 hours after the last noise exposure. The control group was not exposed to noise, with other conditions being the same as those in the noise-exposed group. The results of sequencing at the single-cell level help us gain a deeper understanding of the mechanisms of the development of HHL and NIHL.

2024-06-24 | GSE252285 | GEO

Cochlear single-cell gene expression profiles in mice with noise-induced hidden hearing loss and noise-induced hearing loss.

Project description:Cochlear single-cell gene expression profiles in mice with noise-induced hidden hearing loss and noise-induced hearing loss.

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microRNA expression data of ascencding central auditory pathway from noise-induced hearing loss rat model

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Cochlear transcriptome at 3 hours post-noise trauma in mice

Project description:In order to elucidate molecular mechanisms of noise-induced hearing loss in the cochlea (inner ear), transcriptome of the cochlear sample was analyzed after induction of hearing loss by exposure to intense noise in mice. Cochlear transcriptome was analyzed at 3 hours following the noise exposure.

2020-01-14 | GSE137817 | GEO

Cochlear transcriptome after noise trauma and dexamethasone therapy in mice

Project description:In order to elucidate molecular mechanisms of noise-induced hearing loss and dexamethasone therapy in the cochlea (inner ear), transcriptome of cochlear samples was analyzed after induction of hearing loss by exposure to intense noise in mice. Dexamethasone was intraperitoneally injected immediately following the noise trauma. Cochlear transcriptome was analyzed at 12h and 24h following the noise trauma and dexamethasone administration.

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A DNA Repair Pathway Can Regulate Transcriptional Noise to Promote Cell Fate Transitions

Project description:Stochastic fluctuations in gene expression (‘noise’) are often considered detrimental but, in many disciplines, fluctuations are exploited for benefit (e.g., dither). We show here that DNA base-excision repair amplifies transcriptional noise to facilitate cellular reprogramming. Specifically, the DNA-repair protein Apex1, which recognizes both naturally occurring and unnatural base modifications, amplifies expression noise while homeostatically maintaining mean-expression levels. This amplified expression noise originates from shorter duration, higher intensity, transcriptional bursts generated by Apex1-mediated DNA supercoiling. The remodeling of DNA topology first impedes and then accelerates transcription to maintain mean levels and this mechanism, which we term Discordant Transcription through Repair (DiThR), potentiates cellular reprogramming and differentiation. Our study reveals a potential functional role for transcriptional fluctuations mediated by DNA base modifications in embryonic development and disease.

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Apoptotic vesicles resist oxidative damage in noise-induced hearing loss through activation of FOXO3a-SOD2 pathway

Project description:The purpose of this study is to investigate the therapeutic effect of MSC-derived apoVs treatment on NIHL and the potential mechanism of resisting oxidative stress damage in hair cells, as well as the distribution of apoptotic vesicles in the inner ear. The study provided a new direction for the treatment of noise-induced hearing loss and inner ear delivery.

2023-03-20 | PXD040989 |

Successful Treatment of Noise-Induced Hearing Loss by Mesenchymal Stromal Cells: An RNAseq Analysis of Protective/Repair Pathways.

Project description:Mesenchymal stromal cells (MSCs) are an adult derived stem cell-like population that has been shown to mediate repair in a wide range of degenerative disorders. The protective effects of MSCs are mainly mediated by the release of growth factors and cytokines thereby modulating the diseased environment and the immune system. Within the inner ear, MSCs have been shown protective against tissue damage induced by sound and a variety of ototoxins. To better understand the mechanism of action of MSCs in the inner ear, mice were exposed to narrow band noise. After exposure, MSCs derived from human umbilical cord Wharton's jelly were injected into the perilymph. Controls consisted of mice exposed to sound trauma only. Forty-eight hours post-cell delivery, total RNA was extracted from the cochlea and RNAseq performed to evaluate the gene expression induced by the cell therapy. Changes in gene expression were grouped together based on gene ontology classification. A separate cohort of animals was treated in a similar fashion and allowed to survive for 2 weeks post-cell therapy and hearing outcomes determined. Treatment with MSCs after severe sound trauma induced a moderate hearing protective effect. MSC treatment resulted in an up-regulation of genes related to immune modulation, hypoxia response, mitochondrial function and regulation of apoptosis. There was a down-regulation of genes related to synaptic remodeling, calcium homeostasis and the extracellular matrix. Application of MSCs may provide a novel approach to treating sound trauma induced hearing loss and may aid in the identification of novel strategies to protect hearing.

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Impact of acute noise trauma on the gene expression profile of the hippocampus

Project description:To investigate the early changes in the hippocampus following noise-induced hearing loss, the gene expression profile of the hippocampus was evaluated using microarray analyses immediately after exposure to intense noise stimuli.

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