CD95-induced chondrocyte death in osteoarthritis
Author Information
Author(s): Wei Lei, Sun Xiao-juan, Wang Zhengke, Chen Qian
Primary Institution: Brown Medical School/Rhode Island Hospital
Hypothesis
What are the mechanisms that underlie the loss of chondrocytes during osteoarthritis progression?
Conclusion
The study found that both apoptosis and necrosis contribute to chondrocyte death in osteoarthritis, and that p38 MAPK activity is crucial for this process.
Supporting Evidence
- Chondrocytes treated with anti-CD95 showed increased cell death rates.
- Inhibition of p38 MAPK activity completely abolished anti-CD95 induced cell death.
- Both apoptosis and necrosis were observed in chondrocytes treated with anti-CD95.
Takeaway
Chondrocytes, the cells in cartilage, can die in two ways: by a process called apoptosis and by necrosis, and both depend on a specific protein pathway.
Methodology
Chondrocytes were isolated from osteoarthritic cartilage and treated with anti-CD95 and p38 MAPK inhibitor SB203580 to assess cell death and proliferation.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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