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[Experimental study on p53 gene mutation in keloid fibroblasts].
Wang Liu1, You-Hui Jiang, You-Liang Li
1Department of Plastic Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P. R. China.
Summary
p53 gene mutations were found in keloid fibroblasts but not in normal or hyperplastic scar tissue, suggesting a role for these mutations in keloid formation.
Area of Science:
- Molecular biology
- Dermatology
- Genetics
Context:
- Keloids are abnormal scars resulting from a complex biological process.
- The p53 tumor suppressor gene is crucial in regulating cell growth and apoptosis.
Purpose:
- To investigate the presence and significance of p53 gene mutations in keloid fibroblasts.
- To determine if p53 mutations correlate with keloid development.
Summary:
- Fibroblasts were cultured from keloid, hyperplastic scar, and normal skin tissues.
- Polymerase chain reaction-single-stranded conformational polymorphism (PCR-SSCP) and DNA sequencing identified p53 gene mutations.
- Mutations in exons 4-7 of the p53 gene were detected in 9 out of 12 keloid samples, but not in hyperplastic scar or normal skin samples.
Impact:
- These findings suggest that p53 gene mutations may contribute to the pathogenesis of keloids.
- This research provides a potential molecular target for understanding and treating keloid formation.