Dataset Information

Proteomic profiling of human meniscus

ABSTRACT: There is a need to clarify the role of the meniscus in knee OA which may be aided by the identification of biomarkers that reflect the molecular events involved in the tissue degradation. This is of particular importance in the early stages of the degenerative processes, a crucial phase when it might still be possible to interfere with disease progression before tearing and critical loss of meniscal function occurs. One way to achieve this goal is exploratory proteomics by mass spectrometry (MS), which has the potential to analyse the proteome of complex samples. Thus, our aim was to gain new knowledge about the molecular processes within the human meniscus by comparing the proteomic profiles of both the lateral and medial meniscus from healthy controls, subjects with mild signs of joint degeneration, and patients with end-stage knee OA, using a non-targeted MS approach operating in data-independent acquisition (DIA) mode. For the research purpose six groups were established: medial and lateral menisci from control donors (n=12), medial and lateral menisci from donors with mild signs of joint degeneration (n=13) and medial and lateral menisci from end-stage knee OA patients (n=12).

INSTRUMENT(S): Q Exactive HF-X

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Meniscus

DISEASE(S): Osteoarthritis

SUBMITTER: Patrik Onnerfjord

LAB HEAD: Patrik Onnerfjord

PROVIDER: PXD042122 | Pride | 2024-04-03

REPOSITORIES: Pride

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Publications

Mining the Proteome Associated with Rheumatic and Autoimmune Diseases.

Ruiz-Romero Cristina C Lam Maggie P Y MPY Nilsson Peter P Önnerfjord Patrik P Utz Paul J PJ Van Eyk Jennifer E JE Venkatraman Vidya V Fert-Bober Justyna J Watt Fiona E FE Blanco Francisco J FJ

Journal of proteome research 20191023 12

A steady increase in the incidence of osteoarthritis and other rheumatic diseases has been observed in recent decades, including autoimmune conditions such as rheumatoid arthritis, spondyloarthropathies, systemic lupus erythematosus, systemic sclerosis, and Sjögren's syndrome. Rheumatic and autoimmune diseases (RADs) are characterized by the inflammation of joints, muscles, or other connective tissues. In addition to often experiencing debilitating mobility and pain, RAD patients are also at a h ...[more]

PMID: 31599600

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Project description:Background: Meniscus tears are the most common injury in the knee and are associated with an increased risk of osteoarthritis (OA). The molecular profile of knees with meniscus tears is not well-studied. Therefore, to advance our understanding of the early response of the knee to injury, we compared the gene expression profile of meniscus and articular cartilage within the same knees following meniscus injury. Hypothesis/Purpose: To identify differences between the molecular signatures of meniscus and articular cartilage from knees with intact articular cartilage undergoing arthroscopic partial meniscectomy. Study Design: Descriptive laboratory study Methods: Patients (n=12) with a known isolated medial meniscus tear without any knee chondrosis or radiographic OA were consented prior to surgery. During arthroscopic partial meniscectomy, a sample of their injured meniscus and a sample of their articular cartilage off the medial femoral condyle were procured. The transcriptome signatures, as measured through Affymetrix microarray, were compared between the two tissues and underlying biological processes were explored computationally. Results: 3566 gene transcripts were differentially expressed between meniscus and articular cartilage. Gene transcripts down-regulated in articular cartilage were associated with extracellular matrix organization, wound healing, cell adhesion, and chemotaxis. Gene transcripts up-regulated in articular cartilage were associated with blood vessels morphogenesis and angiogenesis. Examples of individual genes with significant differences in expression between the two tissues include IBSP (23.76 fold; P < 0.001), upregulated in meniscus, and TREM1 (3.23 fold; P = 0.006), upregulated in meniscus. Conclusion: The meniscus and articular cartilage have distinct gene expression profiles in knees with meniscus tears and intact articular cartilage. Total RNA obtained from injured meniscus and normal articular cartilage from patients undergoing partial meniscectomy.

Dataset Information

Proteomic profiling of human meniscus

Publications

Mining the Proteome Associated with Rheumatic and Autoimmune Diseases.

Similar Datasets

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