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Nodular scleroderma: increased expression of connective tissue growth factor
Toshiyuki Yamamoto1, Yasuyuki Sawada, Ichiro Katayama
1Department of Dermatology, Tokyo Medical and Dental University, School of Medicine, Japan. yamamoto.derm@med.tmd.ac.jp
Dermatology (Basel, Switzerland)
|October 6, 2005
Summary
Connective tissue growth factor (CTGF) is upregulated in nodular scleroderma, a fibrotic skin condition. This study found increased CTGF expression in sclerotic fibroblasts, suggesting its role in the disease.
Area of Science:
- Dermatology
- Fibrotic Diseases
- Molecular Biology
Background:
- Nodular scleroderma is a fibrotic skin condition characterized by raised nodules.
- Connective tissue growth factor (CTGF) is implicated in fibrotic processes.
Purpose of the Study:
- To investigate the expression of CTGF in nodular scleroderma.
- To report three cases of nodular scleroderma.
Main Methods:
- Immunohistochemistry was used to examine CTGF protein expression.
- In situ hybridization was employed to analyze CTGF transcript levels.
- Three patients with nodular scleroderma were studied.
Main Results:
- CTGF expression was detected in sclerotic fibroblasts within nodular scleroderma lesions.
- CTGF transcripts were abundantly found in fibroblastic cells of nodular scleroderma.
- No CTGF expression was observed in fibroblasts of normal skin.
Conclusions:
- Increased CTGF expression in sclerotic fibroblasts suggests a key role in nodular scleroderma pathogenesis.
- CTGF is a potential therapeutic target for fibrotic skin conditions.