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Updated: Aug 10, 2026
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A 3D System for Culturing Human Articular Chondrocytes in Synovial Fluid
Published on: January 31, 2012
ADAM-10 message is expressed in human articular cartilage
S Chubinskaya1, G Cs-Szabo, K E Kuettner
1Department of Biochemistry, Rush Medical College at Rush-Presbyterian-St Luke's Medical Center, Chicago, Illinois 60612, USA.
Summary
Researchers found that ADAM-10 messenger RNA is expressed in human articular chondrocytes, with higher levels in newborn and osteoarthritis (OA) cartilage. This suggests ADAM-10 may play a role in cartilage matrix destruction during OA.
Area of Science:
- Biochemistry
- Molecular Biology
- Orthopedics
Background:
- Osteoarthritis (OA) involves early depletion of articular cartilage matrices.
- Proteins with a disintegrin-like and metalloproteinase-like domain (ADAM) are implicated in matrix degradation and cell interactions.
Purpose of the Study:
- To investigate ADAM-10 messenger RNA (mRNA) expression in human articular chondrocytes from various age groups and OA tissues.
- To compare ADAM-10 mRNA expression levels between normal and OA cartilage.
Main Methods:
- In situ hybridization to detect ADAM-10 mRNA expression.
- Semiquantitative reverse transcription-polymerase chain reaction (RT-PCR) to compare expression levels.
Main Results:
- ADAM-10 mRNA was confirmed in human articular chondrocytes.
- Highest expression levels were observed in newborn and severely damaged OA cartilage, particularly in cell clusters.
- ADAM-10 mRNA expression was significantly upregulated in OA cartilage compared to age-matched normal cartilage.
- Expression correlated with Safranin O staining loss, indicating matrix degradation.
Conclusions:
- ADAM-10 is expressed by human articular chondrocytes.
- Upregulated ADAM-10 mRNA levels in OA cartilage suggest a role in matrix destruction.
- ADAM-10 may be a key factor in the pathogenesis of osteoarthritis.
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