ArticlePloS one2018
Site-specific glycosaminoglycan content is better maintained in the pericellular matrix than the extracellular matrix in early post-traumatic osteoarthritis.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 22 citations in OpenAlex.
- Role of collagen VI and IX in mechanotransduction in the cartilage microenvironments: A multiscale in silico examination.Journal of orthopaedic translation · 2026Article
- Early Post‑Traumatic Osteoarthritis Features Greater Cartilage Extracellular Matrix Proteoglycan Loss Compared to the Pericellular Matrix.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026Article
- Assessment of morphology, radiopacity gradient and mechanical properties of articular cartilage with contrast-enhanced high-resolution peripheral quantitative computed tomography.Frontiers in bioengineering and biotechnology · 2026Article
- Article
- Biomimetic Proteoglycans Strengthen the Pericellular Matrix of Normal and Osteoarthritic Human Cartilage.ACS biomaterials science & engineering · 2024Article
- Dual-contrast micro-CT enables cartilage lesion detection and tissue condition evaluation ex vivo.Equine veterinary journal · 2023Article
- The Protective Function of Directed Asymmetry in the Pericellular Matrix Enveloping Chondrocytes.Annals of biomedical engineering · 2022Article
- FABP4 knockdown suppresses inflammation, apoptosis and extracellular matrix degradation in IL-1β-induced chondrocytes by activating PPARγ to regulate the NF-κB signaling pathway.Molecular medicine reports · 2021Article
- Time-dependently Appeared Microenvironmental Changes and Mechanism after Cartilage or Joint Damage and the Influences on Cartilage Regeneration.Organogenesis · 2021Review
- Structure-Function Relationships of Healthy and Osteoarthritic Human Tibial Cartilage: Experimental and Numerical Investigation.Annals of biomedical engineering · 2020Article
- Early changes in cartilage pericellular matrix micromechanobiology portend the onset of post-traumatic osteoarthritis.Acta biomaterialia · 2020Article
- Machine Learning Classification of Articular Cartilage Integrity Using Near Infrared Spectroscopy.Cellular and molecular bioengineering · 2020Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
Abstract
introductionOne of the characteristics of early osteoarthritis (OA) is the loss of fixed charged density (FCD) of glycosaminoglycans in the superficial zone of articular cartilage. However, possible local changes in the FCD content of the pericellular matrix (PCM) are not fully understood. Hence, our aim was to investigate the effect of unilateral anterior cruciate ligament transection (ACLT) in rabbit knees on estimated FCD in the PCM compared to that in the ECM, and relate these results with cell morphology.
methodsArticular cartilage samples were collected from ACLT, contralateral and intact control knee joints from lateral and medial femoral condyles and tibial plateaus, and from the femoral groove and patella. Histological samples were prepared and stained with Safranin-O to estimate the FCD content around the chondrocytes in the PCM and the ECM with digital densitometry.
resultsAs a result of ACLT, the greatest decreases in the FCD content of the PCM were observed in the superficial zone of the lateral femoral condyle (p = 0.02), medial tibial plateau (p = 0.002) and patellar (p < 0.001) cartilage. The normalized FCD content of the PCM compared to the surrounding ECM was increased most in the femoral condyles (p < 0.01) and medial tibial plateau (p = 0.02) cartilage. The high normalized FCD content of the PCM in the superficial zone of lateral femoral condyle cartilage was consistent with the round cell morphology in that location.
conclusionsIn conclusion, we suggest that certain sites in the knee joint, particularly the lateral femoral condyle cartilage, experience less FCD loss in the PCM than in the ECM in early post-traumatic OA, which could lead to altered cell shape.
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