ChemR23 and Chemerin in Human Chondrocytes and Inflammation
Author Information
Author(s): Vivian Berg, Baldur Sveinbjörnsson, Signy Bendiksen, Jan Brox, Khaled Meknas, Yngve Figenschau
Primary Institution: University Hospital of North Norway
Hypothesis
Do human chondrocytes express ChemR23 and chemerin, and can chemerin/ChemR23 signaling affect inflammatory mediator secretion?
Conclusion
Human chondrocytes express ChemR23 and chemerin, and stimulation with chemerin enhances inflammatory signaling and cytokine secretion.
Supporting Evidence
- Chondrocytes expressed both ChemR23 and chemerin.
- Stimulation with chemerin21-157 led to increased phosphorylation of MAPKs and Akt.
- Significantly elevated levels of pro-inflammatory cytokines and metalloproteases were detected after stimulation.
Takeaway
This study shows that a protein called ChemR23 and its partner chemerin are found in joint cells, and when they interact, they can make these cells produce substances that cause inflammation.
Methodology
Chondrocytes were isolated from human knee joints, cultured, and stimulated with chemerin21-157 to assess inflammatory mediator secretion and signaling pathways.
Limitations
The study did not compare the effects of chemerin on chondrocytes from healthy versus diseased joints.
Participant Demographics
Chondrocytes were obtained from patients undergoing autologous chondrocyte transplantation and total knee arthroplasty.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website