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Grafting induced pluripotent stem cells-derived tenocytes contribute to recovery of motor function after Achilles tendon rupture in rat [single cell RNAseq]

ABSTRACT: Grafting induced pluripotent stem cells-derived tenocytes contribute to recovery of motor function after Achilles tendon rupture in rat [single cell RNAseq]

PROVIDER: PRJNA658973 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12507504.fastq.gz	Fastqsanger.gz
	SRR12507505.fastq.gz	Fastqsanger.gz
	SRR12507506.fastq.gz	Fastqsanger.gz
	SRR12507507.fastq.gz	Fastqsanger.gz
	SRR12507508.fastq.gz	Fastqsanger.gz

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Grafting induced pluripotent stem cells-derived tenocytes contribute to recovery of motor function after Achilles tendon rupture in rat

Project description:Self-renewal of tendons is rare since the vascular formation inside is extremely poor, thus reconstructive surgery using autologous tendons has been often taken place in the case of severe injury. However, the rate of re-injury after surgery is relatively high, and collection of autologous tendons leads muscle weakness which results in prolonged rehabilitation. Here, we introduce the induced pluripotent stem cells (iPSCs)-based technology aiming at developing a new therapeutic option after tendon injury. Firstly, we derived tenocytes from human iPSCs by recapitulating the normal progression of step-wise narrowing fate decisions in the vertebrate embryo. We used single-cell RNA sequencing to analyze the developmental trajectory of iPSCs-derived tenocytes. We then demonstrated that grafting iPSCs-tenocytes contributed to recovery of motor function after Achilles tendon injury in rat via engraftments and paracrine effects. The biomechanical strength of regenerated tendons recovered comparable to that of healthy tendons. We propose that the iPSCs-tenocytes will provide a novel therapeutic option in tendon injury.

2021-07-01 | PXD020887 | JPOST Repository

Grafting induced pluripotent stem cells-derived tenocytes contribute to recovery of motor function after Achilles tendon rupture in rat [single cell RNAseq]

2021-07-19 | GSE156753 | GEO

iTRAQ-based proteomics reveals potential markers and treatment pathways for acute Achilles tendon rupture

Project description:We used the coupled isobaric tag for relative and absolute quantitation-liquid chromatography-electrospray ionization-tandem mass spectrometry approach to examine protein expression in acute Achilles tendon rupture patients.

2024-01-26 | PXD046451 | Pride

Grafting of iPS cell-derived tenocytes promotes motor function recovery after Achilles tendon rupture.

Project description:Tendon self-renewal is a rare occurrence because of the poor vascularization of this tissue; therefore, reconstructive surgery using autologous tendon is often performed in severe injury cases. However, the post-surgery re-injury rate is relatively high, and the collection of autologous tendons leads to muscle weakness, resulting in prolonged rehabilitation. Here, we introduce an induced pluripotent stem cell (iPSC)-based technology to develop a therapeutic option for tendon injury. First, we derived tenocytes from human iPSCs by recapitulating the normal progression of step-wise narrowing fate decisions in vertebrate embryos. We used single-cell RNA sequencing to analyze the developmental trajectory of iPSC-derived tenocytes. We demonstrated that iPSC-tenocyte grafting contributed to motor function recovery after Achilles tendon injury in rats via engraftment and paracrine effects. The biomechanical strength of regenerated tendons was comparable to that of healthy tendons. We suggest that iPSC-tenocytes will provide a therapeutic option for tendon injury.

| S-EPMC8373964 | biostudies-literature

Effects of running for 1h on gene expression in Achilles tendon cells of SD rats

Project description:The Achilles tendon is the thickest tendon in the human body, and Achilles tendinopathy is its most prevalent disorder, often considered a consequence of overuse. While disruption to the collagen fibers represents a significant manifestation of Achilles tendinopathy, strikingly little is known about the mechanisms by which healthy tendon accumulates damage in vivo.As existing studies of tendon biomechanics and mechanobiology predominantly relied on in vitro or ex vivo experiments on isolated tissues, it is still largely unknown whether and how disruptions occur to the collagen molecules in healthy Achilles tendons following physiological activities. We reported the first RNA-seq analysis reflecting transcriptome changes in healthy rat Achilles tendons following running, providing a resource for future investigations in tendon mechanobiology and sports medicine.

2024-10-07 | GSE269529 | GEO

Expression data from rat Achilles tendon-derived stem cells during development

2015-07-10 | GSE68485 | GEO

Expression data from rat Achilles tendon-derived stem cells during development

Project description:We have compared the gene expression profile of rat Achilles tendon-derived stem cells in post-natal tendon development. Rat tendon stem/progenitor cells (TSPCs) were isolated at different stages of post-natal development: TSPCs-1d, TSPCs-7d and TSPCs-56d. TSPCs at different post-natal development stages (1d, 7d and 56d) were isolated, cultured and used for microarray analyses at passage 2. All TSPCs in this study were of isolated from more than one individual. Total RNA was extracted and fragmented biotin-tagged cRNA was hybridized to Rat Genome 230 2.0 Array.

2015-07-10 | E-GEOD-68485 | biostudies-arrayexpress

Gene expression in Achilles tendon cells of SD rats after 1 h of running followed by 12 h of rest

Project description:Achilles tendinopathy is often thought to be a consequence of overuse of the Cells within the Achilles tendon of healthy rats undergo a series of changes following physiologic levels of mechanical stimulation after running, and we further explored the transcriptome changes in Achilles tendon cells during post-exercise recovery. Our current experiment reveals RNA-seq analysis of the transcriptome of the rat Achilles tendon after 12 hours of rest following running.

2024-10-07 | GSE270400 | GEO

RNA Sequencing Facilitates Quantitative Analysis of Cont/Dicer KO/Scx HT mice Achilles Tendon Transcriptome

Project description:To investigate which mRNA and miRNA are involved in Dicer KO mouse tendon hypoplasticity, we performed RNA-seq and small RNA-seq using RNA from Achilles tendon of Cont (Dicer f/f), Scx HT (ScxCre/+ Knock In:Dicer +/+) and Dicer KO (ScxCre/+ Knock In:Dicer f/f) mice at 4 weeks of age. Achilles tendon from 4-week-old female mice was harvested, RNA was isolated using an RNA extraction kit. RNA libraries were generated and sequenced by K. K. DNAFORM (Tokyo, Japan). The libraries were sequenced by Illumina HISEQ4000 using Illumina provided protocol. Differential gene expression was analyzed with R Bioconductor DESeq2. We found that a large portion of tendon-fibroblast characteristic genes was downregulated in Dicer KO mice Achilles tendon compared to Cont and Scx HT.

2022-05-31 | GSE186353 | GEO

Structure-function Relationships in Human Tendons: Interfascicular Matrix Specialisation in the Achilles Tendon C4PR_LIV

Project description:Tendon is a highly aligned connective tissue, in which the macro-structure consists of collagen-rich fascicles surrounded by interfascicular matrix (IFM). In a series of recent studies in equine tissue, we have demonstrated specialisation of tendon composition, structure and mechanics to achieve the tendon’s functional requirements, specifically reporting extensive specialisation of the IFM region in the energy storing superficial digital flexor tendon. We have also demonstrated loss of functional specialisms with ageing, leading to a hypothesised new paradigm for tendinopathy, focused on the importance of the IFM. However, to date, there have been no studies focused on structure-function specialisation or the IFM in functionally distinct human tendons. Here, we compare the positional anterior tibialis tendon and energy storing Achilles tendon, performing a detailed analysis of the composition and mechanical properties of both fascicle and IFM regions, to test the hypothesis that the IFM in the energy storing Achilles tendon has specialised composition and mechanical properties, and that these specialisations are lost with ageing. We demonstrate that the IFM is specialised in the energy storing Achilles tendon, with greater elasticity and fatigue resistance than in the positional anterior tibialis tendon. While there were few age-related alterations in mechanics, we did identify age-related alterations in the IFM proteome of the Achilles tendon specifically, which is predicted to be regulated by TGF-beta signalling and may be responsible for the trend towards decreased fatigue resistance observed in the Achilles IFM with ageing.

2020-11-11 | PXD018212 | Pride

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