Related Experiment Video
Updated: Jul 14, 2026

Visualizing Scar Development Using SCAD Assay - An Ex-situ Skin Scarring Assay
Published on: April 28, 2022
[Discoidin domain receptors (DDRs) expression in pathological scar fibroblast formation]
Yu-Zhi Jiang1, Xin Xing, Jun-Hui Wen
1Department of Plastic Surgery, Changhai Hospital, Shanghai 200433, China.
Objective:
To explore the role of discoidin domain receptors (DDRs) in the formation of the keloid.
Methods:
The real-time quantitative PCR was used to compare the DDRs expression in the keloids and normal fibroblasts.
Results:
The level of DDR1 expression was significantly higher in keloid than in normal fibroblast (20.98 vs 4.2, P <0.01; 7.9 vs 4.23, P <0.05). The level of DDR1 expression in keloid was also higher significantly than that in hypertropic scar (20.98 vs 7.9, P < 0.01). However, the level of DDR2 expression was somewhat higher in keloid than in normal fibroblasts, the difference seemed not to be significantly in probability (358, 332 vs 278, P > 0.05).
Conclusions:
DDRs may exert effect on keloid cell behaviours.
Related Concept Videos
TGF - β Signaling Pathway
Clinical Applications of Epidermal Stem Cells
Healing II: Complications
Introduction to Fibroblasts
Role Of Notch Signalling In Intestinal Stem Cell Renewal
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...

