Related Experiment Video
Updated: Aug 9, 2026

Real-time Visualization and Analysis of Chondrocyte Injury Due to Mechanical Loading in Fully Intact Murine Cartilage Explants
Published on: January 7, 2019
Articular cartilage and changes in arthritis: matrix degradation
1Joint Diseases Laboratory, Shriners Hospital for Children, Montreal, Quebec, Canada. jmort@shriners.mcgill.ca
Abstract:
While many proteases in articular cartilage have been described, current studies indicate that members of two families of metalloproteases - MMPs and the ADAMTSs - are responsible for the degradation of the major components of this tissue. Collagenases (MMPs) make the first cleavage in triple-helical collagen, allowing its further degradation by other proteases. Aggrecanases (ADAMTSs), in conjunction with other MMPs, degrade aggrecan, a component of the proteoglycan aggregate. Antineoepitope antibodies that recognize the cleavage products of collagen and aggrecan generated by these enzymes are now available and are being used to detect the sites of action and to quantitate degradation products.
Related Concept Videos
Bone Remodeling
Growth of Cartilage and Bone Tissue
Osteoclasts in Bone Remodeling
The Extracellular Matrix
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
Role of Matrix Metalloproteases in Degradation of ECM
A...
Extracellular Matrix

