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The transcription factor Scleraxis differentially regulates gene expression in tenocytes isolated at different developmental stages

ABSTRACT: The transcription factor Scleraxis differentially regulates gene expression in tenocytes isolated at different developmental stages

PROVIDER: PRJNA629296 | ENA |

REPOSITORIES: ENA

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The transcription factor Scleraxis differentially regulates gene expression in tenocytes isolated at different developmental stages

Project description:Purpose:- RNA sequencing was performed on adult and fetal equine tenocytes expressing a specific short hairpin RNA against scleraxis (shSCX) versus a non-target (NT) scrambled control Methods:- mRNA profiles of four independent biological lines of adult and fetal NT and shSCX expressing tenocytes were generated by RNA sequencing, using Illumina NovaSeq6000. The sequence reads that passed quality filters were analyzed using the pseudoaligner Salmon and differential expression quantified using DESeq2. Gene ontology analysis was then conducted using Panther. Pathway analysis was conducted using GeneAnalytics. Network analysis was conducted using the STRING plugin in the Cytoscape app. Results:- SCX knockdown had a larger effect on gene expression in fetal tenocytes, effecting 477 genes in comparison to the 183 genes effected in adult tenocytes, indicating that SCX-dependent processes may differ in these two developmental stages.

2020-08-12 | GSE149570 | GEO

Transcriptional analysis of tenocytes from mice with a targeted deletion of scleraxis

Project description:We report RNA sequencing data from tenocytes cultured from the tail tendons of adult male mice in the C57Bl/6 background that either have the scleraxis gene (Scx+) or mice in which scleraxis has been deleted using CreERT2 driven from the Rosa26 locus using 4-hydroxytamoxifen (4HT).

2020-02-24 | GSE145863 | GEO

RNA-seq analysis of equine tenocytes exposed to siRNA targeting scleraxis (Scx) to identify novel targets of Scx-mediated mechanotransduction

Project description:Equine tenocytes were exposed to an siRNA targeting the transcription factor scleraxis (Scx) or a scramble control and maintained under cyclic strain. The resulting transcriptomes were then used for RNA-seq analysis. The goal of this study was to identify novel ways in which Scx facilitates mechanotransduction in tenocytes in order to better understand tenocyte biology.

2018-08-02 | GSE110567 | GEO

Transcriptional analysis of tenocytes from mice with a targeted deletion of scleraxis

Project description:Transcriptional analysis of tenocytes from mice with a targeted deletion of scleraxis

| PRJNA608531 | ENA

Genome-wide transcriptome analysis reveals Embryonic-Stem Cell derived tenocytes resemble fetal, not adult, tenocytes

Project description:Purpose:- RNA sequencing was performed on adult, fetal and embryonic stem-cell derived equine tenocytes cultured in 3D to look at which had more similar gene expression profiles. Results:- 6,190 genes were significantly differentially expressed (DE) across the three lines of fetal, adult and ESC-tenocytes (logFC ± 2, padj <0.01). 542 of these were DE between adult and fetal tenocytes, 2,708 between fetal and ESC-tenocytes and 2,940 between adult and ESC-tenocytes. Genes which were DE between adult and fetal tenocytes were significanlty involved in cell migration and motility. Genes which were DE between the ESC-tenocytes and both adult and fetal tenocytes were in organism process and development.

2020-05-28 | GSE145029 | GEO

Transcriptional analysis of tendons and tenocytes from mice with a targeted deletion of scleraxis

Project description:Transcriptional analysis of tendons and tenocytes from mice with a targeted deletion of scleraxis

| PRJNA608526 | ENA

Scleraxis-lineage cells are required for tendon homeostasis and their depletion induces an accelerated extracellular matrix aging phenotype

Project description:Aged tendons have disrupted homeostasis, increased injury risk, and impaired healing capacity. Understanding mechanisms of homeostatic disruption is crucial for developing therapeutics to retain tendon health through the lifespan. Here, we developed a novel model of accelerated tendon extracellular matrix (ECM) aging via depletion of Scleraxis-lineage (ScxLin) cells in young mice (DTR). DTR recapitulates many aspects of tendon aging including comparable declines in cellularity, alterations in ECM structure, organization, and composition. Single cell RNA-sequencing demonstrated a conserved decline in tenocytes associated with ECM biosynthesis in aged and DTR tendons, identifying the requirement for ScxLin cells during homeostasis. However, the remaining cells in aged and DTR tendons demonstrate functional divergence. Aged tenocytes become pro-inflammatory and lose proteostasis. In contrast, DTR tenocytes demonstrate enhanced remodeling capacity. Collectively, this study defines DTR a novel model of accelerated tendon ECM aging and identifies novel biological intervention points to maintain tendon function through the lifespan.

2023-02-03 | PXD037230 | Pride

Proteomic analysis of scleraxis mutant tendon

Project description:Tendons play fundamental role in the musculoskeletal system and locomotion by transferring forces generated by muscles to the skeleton. Tendon injuries can occur due to sports related incidents, as a result of trauma to overuse or during disease or ageing and are among the leading causes of musculoskeletal disability. Scleraxis is a marker of the tendon lineage and appears to be induced at the earliest stage of specification of this lineage, however little is known how scleraxis is modulating tendon growth activity. This study aimed to investigate how scleraxis modulates tendon cells activity.

2021-09-08 | PXD017944 | Pride

Transcriptional analysis of tendons from mice with a targeted deletion of scleraxis

Project description:We report RNA sequencing data from the plantaris tendons of adult male mice in the C57Bl/6 background that either have the scleraxis gene (Scx+) or mice in which scleraxis has been deleted using CreERT2 driven from the Rosa26 locus (Scx-). Mice in which scleraxis was deleted were created by crossing scleraxis-floxed mice with Rosa26-CreERT2 mice. Rosa26-CreERT2 mice that did not have a floxed scleraxis allele served as controls. Mice were treated with tamoxifen for 5 days to induce recombination at the scleraxis locus, and then subjected to a synergist ablation procedure in which the Achilles tendon is removed, resulting in compensatory growth of the plantaris tendon. Mice were analyzed either 7 or 14 days after synergist ablation. Control mice that did not undergo tamoxifen treatment or synergist ablation were also studied (NOC).

2020-01-31 | GSE139493 | GEO

Impact of exogenous IL-1ß stimulation on equine embryonic stem cell-derived tenocytes in three-dimensional culture

Project description:Exogenous IL-1ß stimulation impacts tendon-associated and inflammatory gene expression in equine adult tenocytes but has no impact on embryonic stem cell (ESC)-derived tenocytes in two-dimensional culture. Whether these effects translate to the transcriptome-wide level in three-dimensional (3D) culture in unknown. Utilising RNA-Sequencing, we report that ESC-tenocytes have zero differentially expressed genes following two-weeks of IL-1ß stimulation with similar collagen gel contraction values between the control and IL-1ß conditions, respectively.

2024-02-26 | GSE237821 | GEO

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