Enhanced Extracellular Matrix Breakdown Characterizes the Early Distraction Phase of Canine Knee Joint Distraction
| Autor: | Teunissen, Michelle, Miranda Bedate, Alberto, Coeleveld, Katja, Riemers, Frank M, Meij, Björn P, Lafeber, Floris P J G, Tryfonidou, Marianna A, Mastbergen, Simon C, Chirurgie, dCSCA RMSC-1, CS_Locomotion |
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| Přispěvatelé: | Chirurgie, dCSCA RMSC-1, CS_Locomotion |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
musculoskeletal diseases
Knee Joint Physical Therapy education Biomedical Engineering Physical Therapy Sports Therapy and Rehabilitation Osteoarthritis Sports Therapy and Rehabilitation Extracellular matrix 03 medical and health sciences 0302 clinical medicine Dogs Distraction Medicine Animals Humans Immunology and Allergy groove model Cartilage repair cartilage regeneration Collagen Type II Clinical Research papers 030304 developmental biology 030203 arthritis & rheumatology Orthodontics 0303 health sciences business.industry medicine.disease Techniques Extracellular Matrix osteoarthritis Cartilage business |
| Zdroj: | Cartilage, 13(2_suppl), 1654S. SAGE Publications Inc. Cartilage |
| ISSN: | 1947-6035 |
| Popis: | Objective Joint distraction triggers intrinsic cartilage repair in animal models of osteoarthritis (OA), corroborating observations in human OA patients treated with joint distraction. The present study explores the still largely elusive mechanism initiating this repair process. Design Unilateral OA was induced in the knee joint of 8 dogs using the groove model; the contralateral joint served as a control. After 10 weeks, 4 animals received joint distraction, the other 4 serving as OA controls. Halfway the distraction period (after 4 weeks of a standard 8-week distraction treatment), all animals were euthanized, and joint tissues were collected. A targeted quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis was performed of commonly involved processes including matrix catabolism/anabolism, inflammation, and known signaling pathways in OA. In addition, cartilage changes were determined on tissue sections using the canine OARSI (Osteoarthritis Research Society International) histopathology score and collagen type II (COL2A1) immunostaining. Results Midway distraction, the distracted OA joint showed an upregulation of proteolytic genes, for example, ADAMTS5, MMP9, MMP13, compared to OA alone and the healthy joints, which correlated with an increased OARSI score. Additionally, genes of the transforming growth factor (TGF)-β and Notch pathway, and markers associated with progenitor cells were increased. Conclusions Joint distraction initiates both catabolic and anabolic transcriptional responses. The enhanced turnover, and thereby renewal of the matrix, could be the key to the cartilage repair observed in the months after joint distraction. |
| Databáze: | OpenAIRE |
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