Transcription in wounded rat vocal folds and vocal fold fibroblasts
Ontology highlight
ABSTRACT:
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE62204 | GEO | 2014/10/09
SECONDARY ACCESSION(S): PRJNA263474
REPOSITORIES: GEO
Similar Datasets
Project description:We used microarrays to characterize transcriptome profiles of rat vocal fold tissue following surgical injury (vs. naive tissue); rat vocal fold fibroblasts harvested from scar tissue at the 60 d time point (vs. naive fibroblasts); rat vocal fold scar fibroblasts treated with siRNA against the collagen chaperone protein rat gp46 (vs. scramble siRNA). Adult Fischer 344 rat vocal fold tissue was harvested at 3, 14, and 60 days following surgical injury (control = age-matched naive tissue); rat vocal fold scar fibroblasts were obtained via explant culture of tissue obtained 60 days following surgical injury and harvested at 80% confluence during passage 1 (control = age-matched naive rat vocal fold fibroblasts); rat vocal fold scar fibroblasts were treated for 1 h with 50 nM liposome-delivered siRNA against rat gp46 when 80% confluent at passage 1, cultured for an additional 24 h in fresh media, then harvested (control = rat vocal fold scar fibroblasts treated with 50 nM liposome-delivered scramble siRNA).
2014-10-09 | E-GEOD-62204 | biostudies-arrayexpress
Project description:Expression data from rat vocal fold at different periods after vocal fold injury
| PRJNA579528 | ENA
Project description:Expression data from rat vocal fold at different periods after vocal fold injury (miRNA)
| PRJNA614953 | ENA
Project description:The purpose of this study is to investigate if acute mucosal dehydration as a funcition of low relative humidty environment impacts the vocal folds at the mRNA level. Rabbits were used as animal model to enable a systematic and rigorous assessment of the pathobiology of vocal fold hydration since they can be manipulated in a physiologically realistic manner. We anticipate that the results of this study will help to elucidate the effects of altered mucosal hydration state in response to low ambient humidity on vocal fold epithelium, lamina propria and muscle tissue at the transcriptome level. Together with cellular, structural, and functional techniques that are part of this project, we expect to provide validated scientific recommendations on the adverse effects of mucosal dehydration and the therapeutic benefits of hydration.
2020-12-21 | GSE148588 | GEO
Project description:Transcription in wounded rat vocal folds and vocal fold fibroblasts
| PRJNA263474 | ENA
Project description:Injuries of the vocal folds frequently heal with scar formation, which can have lifelong detrimental impact on voice quality. Current treatments to prevent or resolve scars of the vocal fold mucosa are highly unsatisfactory. In contrast, the adjacent oral mucosa is mostly resistant to scarring. These differences in healing tendency might relate to distinct properties of the fibroblasts populating oral and vocal fold mucosae. We thus established the in vitro cultivation of paired, near-primary vocal fold fibroblasts (VFF) and oral mucosa fibroblasts (OMF) to perform a basic cellular characterization and comparative cellular proteomics. VFF were significantly larger than OMF, proliferated more slowly, and exhibited a sustained TGF-β1-induced elevation of pro-fibrotic interleukin 6. Cluster analysis of the proteomic data revealed distinct protein repertoires specific for VFF and OMF. Further, VFF displayed a broader protein spectrum, particularly a more sophisticated array of factors constituting and modifying the extracellular matrix. Conversely, subsets of OMF-enriched proteins were linked to cellular proliferation, nuclear events, and protection against oxidative stress. Altogether, this study supports the notion that fibroblasts sensitively adapt to the functional peculiarities of their respective anatomical location and presents several molecular targets for further investigation in the context of vocal fold wound healing.
2017-01-23 | PXD005106 | Pride
Project description:Vocal cord healing is a dynamic process, and many genes and proteins are involved, which play varying roles at different regeneration stages after injury. Previous studies have shown that inflammatory responses occur at the early stage of vocal cord injury, where the fibroblasts proliferate exuberantly with intensive secretion and deposition of ECM. These activities reach the peak at 3-7 days and their intensity begins to decline 15 days later. A study based on the dermal system has shown that ECM remodeling during the repair of injury can last for several months. However, few studies have been conducted as to the dynamic changes of gene expressions and signaling pathway during the healing process of vocal cord injury. Plotting these changes will facilitate the understanding about the physiological changes during healing and the identification of key time points and target genes in fibrosis formation.
2019-10-26 | GSE139383 | GEO
Project description:Reinke’s edema is a cigarette associated, benign, mostly bilateral lesion of the vocal folds leading to dysphonia and dyspnea. Until today information about pathophysiology is only scarce, treatment is only surgical. To explore the pathophysiology of Reinke’s edema, we exposed near primary human vocal fold fibroblasts to cigarette smoke extract enriched medium or air bubbled control for 24 hrs. followed by a proteomic analysis. Proteomic analyses revealed an increase of proteins involved in oxidative stress response. We furthermore found that a significant number of essential extracellular matrix proteins was altered by culturing human VFF with CSE enriched medium: UDP-glucose 6-dehydrogenase, a protein involved in hyaluronan synthesis was upregulated, while the expression of several fibrillar collagen types was significantly reduced. The current findings corroborate previous studies but revealed new insights in possible disease mechanisms of Reinke’s edema too. We postulate that changes in the composition -reduction of collagen fibrils, increase of hyaluronan- of the vocal folds’ ECM may lead to the clinical findings.
2019-08-06 | PXD010640 | Pride
Project description:Older subjects are more prone to develop systemic dehydration. Systemic dehydration has implications for vocal fold biology by affecting gene and protein expression. The interaction of hydration status and age has not been investigated in the context of vocal fold biology. We used comparative proteomics to analyze the vocal fold proteome of 6.5-month-old and over 3-year-old rabbits under water ad libitum or water volume restriction protocol.
Young and old rabbits (n= 22) were either euhydrated (water ad libitum) or dehydrated by water volume restriction. Dehydration was confirmed by body weight loss of -5.4% and -4.6% in young and old groups, respectively, and a 1.7-fold increase of kidney renin gene expression in the young rabbits. LC-MS/MS identified 2,286 proteins in the rabbit vocal folds of young and old rabbits combined. Of these, 177, 169, and 81 proteins were significantlyaffected by age, hydration status, or the interaction of both factors, respectively. Comparative proteomics revealed a higher number of proteins differentially regulated in the vocal folds of older dehydrated rabbits compared to older euhydrated, and when compared to younger rabbits, regardless of hydration status. These proteins are predominantly related to structural components of the extracellular matrix and muscle layer, suggesting a disturbance in the viscoelastic properties of aging vocal fold tissue, especially when subjected to systemic dehydration.
2022-06-17 | MSV000089683 | MassIVE
Project description:Vocal cord healing is a dynamic process, and many genes and proteins are involved, which play varying roles at different regeneration stages after injury. Previous studies have shown that inflammatory responses occur at the early stage of vocal cord injury, where the fibroblasts proliferate exuberantly with intensive secretion and deposition of ECM. These activities reach the peak at 3-7 days and their intensity begins to decline 15 days later. A study based on the dermal system has shown that ECM remodeling during the repair of injury can last for several months. However, few studies have been conducted as to the dynamic changes of gene and microRNA expressions during the healing process of vocal cord injury. Plotting these changes will facilitate the understanding about the physiological changes during healing and the identification of key time points and target genes and microRNAs in fibrosis formation.
2020-03-25 | GSE147473 | GEO