Human PSC-derived articular cartilage chondrocytes scRNA-seq
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PROVIDER: PRJNA957815 | ENA |
REPOSITORIES: ENA
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Project description:Objectives Traditional approaches to study Progressive Pseudorheumatoid Arthropathy of Childhood (PPAC) failed to uncover how loss-of-function mutations in Wnt inducible secreted protein 3 (WISP3) cause premature cartilage failure in children. We developed a human induced pluripotent stem cell (hiPSC)-based model of cartilage development to elucidate pathological changes in WISP3-deficient articular cartilage tissues compared to WISP3-sufficient isogenic cartilage tissues. Methods We generated iPSCs from 2 patients with PPAC, and we corrected the disease-causing mutation in one of these lines using CRISPR/Cas9. We also created a WISP3-knockout human embryonic stem cell line. We generated articular cartilage tissues from these hPSCs by established directed differentiation methods. Bioinformatic analyses were used to identify differentially expressed genes (DEGs) and cell type abundances, which were validated by quantitative RT-qPCR and in situ hybridization. Results WISP3-deficient articular cartilage tissues exhibited significantly different transcriptomic profiles and cellular composition compared with their isogenic controls. WISP3-deficient cartilage transcriptomes exhibited enriched biological processes such as TGFb signaling and epithelial to mesenchymal transition. We validated increased expression of TGFb-related genes in WISP3-deficient cartilage, and determined that the abundance of chondrocyte subtypes was altered compared with isogenic controls. Conclusions We developed a robust and reproducible model of iPSC-derived cartilage development to better understand the role of WISP3 in cartilage biology, and the pathology of cartilage failure associated with loss of WISP3 in patients with PPAC. We identified several altered biological processes and signaling pathways in WISP3-deficient cartilage that can be validated in the future with additional patient-derived cell lines, or large animal models.
2023-08-24 | GSE230195 | GEO
Project description:The aim of the current study was to identify molecular markers for articular cartilage that can be used for the quality control of tissue engineered cartilage. Therefore a genom-wide expression analysis was performed using RNA isolated from articular and growth plate cartilage, both extracted from the knee joints of minipigs. Keywords: Native material or primary cells isolated from articular cartilage and growth plate cartilage Articular and growth plate cartilage were taken for RNA extraction and hybridization on Affymetrix microarrays. Furthermore chondrocytes from each type of cartilage were isolated and cell culture was started and terminated at day 10 or day 20. Total RNA from cultivated cells was extracted, and hybridization on Affymetrix microarrays was performed.
2011-07-28 | E-GEOD-23492 | biostudies-arrayexpress
Project description:Focal lesions of articular cartilage give rise to pain and reduced joint function and may, if left untreated, lead to osteoarthritis. Implantation of in vitro generated, scaffold-free autologous cartilage discs may represent the best treatment option. Here we compare articular chondrocytes (ACs) and bone marrow-derived mesenchymal stromal cells (MSCs) for their ability to make scaffold-free cartilage discs.
2023-02-07 | PXD029434 | Pride
Project description:Chondrocyte gene expression was analyzed to study mechanisms involved in the structural and functional adaptation of articular cartilage during postnatal maturation. Transcriptional profiling was used to compare articular chondrocytes between four neonatal and four adult horses. Expressional differences featured matrix proteins and matrix-modifying enzymes reflecting the transition from cartilage growth to cartilage homeostasis. Keywords: articular cartilage, maturation, horse, cDNA microarray
2008-11-10 | GSE10303 | GEO
Project description:Osteoarthritis (OA) is a degenerative joint disease characterized by progressive cartilage loss, bone remodeling, synovial inflammation, and significant joint pain, often resulting in disability. Injury to the synovial joint such as the anterior cruciate ligament (ACL) tear is the major cause of OA in young adults. Currently, there are no approved therapies available to prevent joint degeneration or rebuild articular cartilage destroyed by OA, primarily because our understanding of the cellular and molecular changes that contribute to joint damage is very limited. The synovial joint is a complex structure composed of several tissues including articular cartilage, subchondral bone, synovium, synovial fluid, and tensile tissues including tendons and ligaments. In the present study, using single-cell RNA sequencing (scRNA-seq), we examined the cellular heterogeneity in articular cartilage from mouse knee joints and determined the knee joint injury-induced early molecular changes in the chondrocytes that could contribute to OA.
2021-06-19 | GSE172500 | GEO
Project description:Articular cartilage is deprived of blood vessels and nerves, and the only cells residing in this tissue are chondrocytes. The molecular properties of the articular cartilage and the architecture of the extracellular matrix demonstrate a complex structure that differentiates on the depth of tissue. Osteoarthritis (OA) is a degenerative joint disease, the most common form of arthritis, affecting the whole joint. It is associated with ageing and affects the joints that have been continually stressed throughout life including the knees, hips, fingers, and lower spine region. OA is a multifactorial condition of joint characterised by articular cartilage loss, subchondral bone sclerosis, and inflammation leading to progressive joint degradation, structural alterations, loss of mobility and pain. Articular cartilage biology is well studied with a focus on musculoskeletal diseases and cartilage development. However, there are relatively few studies focusing on zonal changes in the cartilage during osteoarthritis.
2022-05-19 | PXD029116 | Pride
Project description:While prior work has established that articular cartilage arises from Prg4-expressing perichondrial cells, it is not clear how this process is specifically restricted to the perichondrium of synovial joints. We document that the transcription factor Creb5 is necessary to initiate the expression of signaling molecules that both direct the formation of synovial joints and guide perichondrial tissue to form articular cartilage instead of bone. Creb5 promotes the generation of articular chondrocytes from perichondrial precursors in part by inducing expression of Wif1, which blocks a Wnt5a autoregulatory loop in the perichondrium. Postnatal deletion of Creb5 in the articular cartilage leads to loss of both flat superficial zone articular chondrocytes coupled with a loss of both Prg4 and Wif1 expression; and a non-cell autonomous up-regulation of Ctgf. Our findings indicate that Creb5 promotes both joint formation and the subsequent development of articular chondrocytes by disrupting a Wnt5a positive-feedback loop in the perichondrium.
2022-11-07 | GSE181883 | GEO
Project description:Developmental dysplasia of the hip (DDH) is one of the significant risk factors for hip osteoarthritis. In order to investigate the factors that induce early articular cartilage degeneration of the hip joints that are exposed to reduced dynamic loads arising from hip dislocation , we created rodent models of hip dislocation by swaddling. Notably, expression of periostin (Postn) was increased in the acetabular articular cartilage of the DDH models; Postn was a candidate gene associated with early articular cartilage degeneration. We showed that early articular cartilage degeneration was suppressed in Postn-/- DDH mice. Furthermore, a microgravity environment induced the expression of Postn in chondrocytes through STAT3 signaling. Postn induced catabolic factors, interleukin-6 and matrix metalloproteinase 3, in articular chondrocytes through integrin-nuclear factor κB signaling. Additionally, interleukin-6 stimulated Postn expression through STAT3 signaling. Thus, Postn plays a critical role in early articular cartilage degeneration associated with hip dislocation.
2022-07-20 | GSE173637 | GEO
Project description:Osteoarthritis (OA) is the most common form of arthritis worldwide. It is a complex disease affecting the whole joint but is generally characterized by progressive degradation of articular cartilage. Recent genome-wide association screens have implicated distinct DNA methylation signatures in OA patients. We show that the de novo DNA methyltransferase (Dnmt) 3b, but not Dnmt3a, is present in healthy murine and human articular chondrocytes and expression decreases in OA mouse models and in chondrocytes from human OA patients. Targeted deletion of Dnmt3b in murine articular chondrocytes results in an early onset and progressive post-natal OA-like pathology. RNA-seq and MethylC-seq analyses of Dnmt3b loss-of-function chondrocytes shows that cellular metabolic processes are affected. Specifically, TCA metabolites and mitochondrial respiration are elevated. Importantly, a chondroprotective effect was found following Dnmt3b gain-of-function in murine articular chondrocytes in vitro and in vivo. This study shows that Dnmt3b plays a significant role in regulating post-natal articular cartilage homeostasis. Cellular pathways regulated by Dnmt3b in chondrocytes may provide novel targets for therapeutic approaches to treat OA.
2017-07-24 | GSE85148 | GEO
Project description:To identify genes that maintain the homeostasis of the articular cartilage, we compared gene expression profiles of adult articular cartilage chondrocytes with that of growth plate cartilage chondrocytes in adult (10-week-old) Sprague Dawley (SD) rats. Furthermore, to identify genes that have a potency to regenerate the articular cartilage, we compared gene expression profiles of superficial layer chondrocytes of infant epiphyseal cartilage which form articular cartilage with that of the deep layer chondrocytes which form growth plate cartilage in infant (6-day-old) SD rats.
2012-07-17 | E-MTAB-1218 | biostudies-arrayexpress