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Gene expression profile at single cell level of synovial cells from patients with late-stage knee osteoarthritis

ABSTRACT: Gene expression profile at single cell level of synovial cells from patients with late-stage knee osteoarthritis

PROVIDER: PRJNA1044058 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26919258_1.fastq.gz	Fastqsanger.gz
	SRR26919258_2.fastq.gz	Fastqsanger.gz
	SRR26919259_1.fastq.gz	Fastqsanger.gz
	SRR26919259_2.fastq.gz	Fastqsanger.gz
	SRR26919260_1.fastq.gz	Fastqsanger.gz

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Gene expression profile at single cell level of synovial cells from patients with late-stage knee osteoarthritis

Project description:Innate immune cell are increased in the synovium in knee osteoarthritis. We used single cell RNA sequencing to analyze synovial cellular profiles, function, and biological processes.

2025-04-21 | GSE248453 | GEO

Synovial immune cell dysfunction and pain in late-stage knee osteoarthritis

Project description:Synovial immune cell dysfunction and pain in late-stage knee osteoarthritis

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Spatial profiling of synovial tissue from patients with late-stage knee osteoarthritis.

Project description:Marked changes in synovial tissue are seen in knee osteoarthritis and are related to pain; however, the regulation of these processes are not fully understood. Spatial profiling was used to characterize cellular profiles and biological processes within important microenvironments in the synovium (intimal lining, sub-lining, and vessels) between patients that experience more pain compared to those that experience less pain.

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Spatial profiling of synovial tissue from patients with late-stage knee osteoarthritis.

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Synovial Macrophage Activation Profiles in Experimental Knee Osteoarthritis

Project description:To investigate differences in gene expression of synovial macrophages in experimental rat knee post traumatic osteoarthritis.

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Gene expression in synovial membranes from patients with early and end-stage osteoarthritis

Project description:Osteoarthritis is characterized by degeneration of cartilage and bone in the synovial joints. Recent findings suggest that inflammation may play a role in osteoarthritis, with synovitis being associated with the clinical symptoms of osteoarthritis. Furthermore, we have found that levels of inflammatory complement components are abnormally high in the synovial fluid of individuals with osteoarthritis. To determine whether synovial membranes could be a source of complement and other inflammatory molecules in osteoarthritic joints, we characterized the expression of genes in synovial membranes from patients with early-stage or end-stage osteoarthritis. Samples of synovial membrane were obtained from the suprapatellar pouch of patients with osteoarthritis who were treated at the Hospital for Special Surgery. Specifically, samples were from 10 patients with early-stage knee osteoarthritis who were undergoing arthroscopic procedures for degenerative meniscal tears (with documented cartilage degeneration but no full-thickness cartilage loss, Kellgren Lawrence score </=2), and from 9 patients with end-stage knee osteoarthritis ( diffuse full thickness cartilage erosion) who were undergoing total knee joint replacement. Raw data from microarray analysis of healthy synovial membranes, which were run on the same platform and array as our osteoarthritic samples, were downloaded from the NCBI Gene Expression Omnibus (accession number GSE12021) and used for comparison. The 19 new Samples of this Series were analyzed (RMA) together with 7 previously submitted healthy individual Samples (GSM175810, GSM175812, GSM176290, GSM176291, GSM176292, GSM176268, GSM176269). The complete RMA data are provided as a supplementary file on the Series record. The GSE12021 reanalyzed data are also provided as a supplementary file on the Series record. GSE32317_12genes.txt includes data from figure 1 of the paper.

2011-11-01 | E-GEOD-32317 | biostudies-arrayexpress

Proteomics profiling of human synovial fluid suggests global increased protein interplay in early-osteoarthritis (OA) and lost in late-stage OA

Project description:The underlying molecular mechanisms in osteoarthritis (OA) development are largely unknown. This study explores the proteome and the pairwise interplay of proteins on a global level in synovial fluid from patients with late-stage knee OA (arthroplasty), early knee OA (arthroscopy due to degenerative meniscal tear) and from deceased controls without knee OA. Synovial fluid samples were analyzed using state-of-the-art mass spectrometry with data-independent acquisition. The differential expression of the proteins detected was clustered and evaluated with data mining strategies and a multilevel model. Group-specific slopes of associations were estimated between expressions of each pair of identified proteins to assess the co-expression (i.e. interplay) between the proteins in each group. More proteins were increased in early-OA vs controls than late-stage OA vs controls. For most of these proteins, the fold changes between late-stage OA vs controls and early stage OA vs controls were remarkably similar suggesting potential involvement in the OA process. Further, for the first time this study illustrated distinct patterns in protein co-expression suggesting that the global interplay between the protein machinery is increased in early-OA and lost in late-stage OA. Further efforts should probably focus on earlier stages of the disease than previously considered.

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Synovial Macrophage Activation Profiles in Experimental Knee Osteoarthritis

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Project description:Background: Synovial inflammation is associated with pain severity in patients with knee osteoarthritis (OA). The aim here was to determine in a population with knee OA, whether synovial tissue from areas associated with pain exhibited different synovial fibroblast transcriptomes, compared to synovial tissue from sites not associated with pain. A further aim was to compare differences between early and end-stage disease synovial fibroblasts. Methods: Patients with early knee OA (n=29) and end-stage knee OA (n=22) were recruited. Patient reported pain was recorded by questionnaire and using an anatomical knee pain map. Proton density fat suppressed MRI axial and sagittal sequences were analysed and scored for synovitis. Synovial tissue was obtained from the medial and lateral parapatellar and suprapatellar sites. RNA sequencing was performed using Illumina’s NextSeq 500 and analysed with Galaxy web platform, usegalaxy.org, and Qlucore software. Transcriptomes were functionally characterised using Ingenuity Pathway Analysis. Findings: Parapatellar synovitis was significantly associated with increased OA pain perception. Functional pathway analysis revealed that early OA painful sites mediate immune cell recruitment and promote the formation and development of neurites. Conclusion: OA disease progression and the presence of pain in early OA is associated with different synovial pathotypes. Further interrogation of these pathotypes will increase our understanding of the role of synovitis in OA joint pain and provide a rationale for the therapeutic targeting to alleviate pain in patients.

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Bulk RNA-seq of human knee osteoarthritis synovium

Project description:To classify knee osteoarthritis (OA) synoviums according to gene expression patterns, we performed RNA-seq using synovial tissues obtained from OA patients and non-OA patients.

2025-01-07 | GSE283079 | GEO

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