Generation of tendon like tissues from human iPSC
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA794776 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR17449718_1.fastq.gz | Fastqsanger.gz | |||
| SRR17449718_2.fastq.gz | Fastqsanger.gz | |||
| SRR17449719_1.fastq.gz | Fastqsanger.gz | |||
| SRR17449719_2.fastq.gz | Fastqsanger.gz | |||
| SRR17449720_1.fastq.gz | Fastqsanger.gz |
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Project description:We report the newly derived tendon like tissues from human iPSC. We depositted RNA sequencing data of human iPSC and derived MSC from human iPSC. We use these cells as materials to generae tenon-like tissues.
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Project description:To identify if genes is regulated by time of day in human tendinopathic tendon, RNAseq analysis was performed on biopsies taken from tendinopathic and contralateral patella tendon 12 hours apart in young tendinopathic subjects (9 AM and 9 PM).
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Project description:Vascular inflammation and activation of myofibroblasts play crucial roles in the progression of fibrosis. Transforming growth factor beta 1 (TGF-β1) has been identified as a driver of adhesion formation in various tissues, including tendons. However, the mechanisms underlying fibrotic peritendinous adhesions remain poorly understood resulting in a lack of effective therapies. To address this, we developed a novel human Tendon-on-a-Chip (hToC) model, which combines a vascular compartment, with endothelial cells and monocytes, with a tissue compartment containing fibroblasts and tissue-resident macrophages, all in serum-free conditions. Our hToC successfully replicates inflammatory and fibrotic phenotypes observed in mouse models and clinical human samples including myofibroblast differentiation and senescence, tissue contraction, excessive extracellular matrix deposition, and secretion of inflammatory cytokines. We show that fibrosis-on-a-chip is driven by the interaction between the vascular and tissue compartments, including the infiltration of monocytes. Transcriptomics validate the hToC as disease model of diseased human tendon and shows the upregulation of the PI3K/AKT/mTOR pathway—a regulatory nexus of fibrosis in tendon injury. Consistent with this finding, treatment with the mTOR inhibitor Rapamycin suppresses the fibrotic phenotype. Our findings validate the hToC as a tool for investigating human fibrosis and illuminate the underappreciated vascular contribution to tendon pathophysiology.
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Project description:Expression data from human hamstring tendon
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Project description:Tendon tissue growth is promoted by mechanical stimulation, but the mechanism is not well understood. Piezo1, a mechanical stress-responsive channel receptor, is expressed in tendon cells, and the fact that tendon tissue growth was accelerated in Piezo1 gain of function mice suggests that Piezo1 plays an important role in tendon tissue growth. RNA-seq of tendon tissues from these mice showed increased expression of tendon-related genes and decreased expression of muscle-related genes, suggesting that Piezo1 may play a role in maintaining and enhancing the properties of tendon cells.
2021-09-20 | GSE169261 | GEO
Project description:Objective To identify transcript level differences between traumatic and degenerative tears of tendon tissues in shoulder joint using RNA-seq. Methods Tendon tissues were isolated from female and male patients with traumatic or degenerative tears during arthroscopic surgery (N = 31). Differentially expressed transcript were identified and biological processes enriched in traumatic and degenerative tears were probed computationally. Expression pattern of selected transcripts was validated by real-time qPCR. Results We identified 339 and 336 transcripts differentially expressed between traumatic and degenerative tears in females and males respectively at a fold-change greater than |2| and a p-value 0.05. In females, GSTM1, MT1G, S1008A, ACSM3, DSC, FAM110C and VNN2 were the most prominent transcripts elevated in traumatic tears and CHAD, CLEC3A, IBSP, TNMD, APLNR, and CPA3 were most highly repressed in traumatic tears. Transcripts elevated in traumatic tears represented catabolic processes, immune response, and metabolic processes while those repressed in traumatic tears represented tissue morphogenesis and developmental processes, angiogenesis, and extracellular matrix organization. In males, ELOA3B, CXCL8, ADM, TNS4 and SPOCK1 were the most prominent transcripts elevated in traumatic tears and MYL2, TNNC1, MB, CPA3, APLNR, and CA3 were most highly repressed in traumatic tears. Transcripts elevated in traumatic tears represented localization of endoplasmic reticulum, chromosome organization, leukocyte/neutrophil degranulation, and protein transport whereas those repressed in traumatic tears represented muscle development, blood circulation (angiogenesis), and muscle cell differentiation. Numerous novel lncRNAs were also identified to be differentially expressed between traumatic and degenerative tears in both sexes. Conclusions and Clinical Relevance This study improves our molecular understanding of tendon tissues in patients with rotator cuff tendinopathy based on underlying etiology (trauma and degeneration). It also provides new insights into sex-based transcript differences that may help drive clinical decision making in female and male patients with traumatic and degenerative shoulder injuries.
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Project description:Generation of 3D tubular bile duct within human iPSC-derived liver organoid by incorporating human iPSC-derived blood vessel
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