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2006: Seyhan Harun; Kopp Jürgen; Schultze-Mosgau Stefan; Horch Raymund E
Increased metabolic activity of fibroblasts derived from cords compared with nodule fibroblasts sampling from patients with Dupuytren's contracture.
Plastic and reconstructive surgery 2006;117(4):1248-52.
BACKGROUND: The pathogenesis of Dupuytren's contracture is characterized by progress in several stages. The disease process includes two structurally distinct fibrotic elements, the so-called nodule and the cord. Several hypotheses have been proposed regarding the cause. Until now, there has been ongoing discussion regarding whether cords or nodules are the primary source of the disease. METHODS: Tissues from 24 patients with Dupuytren's disease were obtained during hand surgery, providing samples from nodules and cords for cell culture. Tissue from the flexor retinaculum excised from healthy patients during surgical procedures on the hand served as control. By using the explant culture technique, fibroblasts were isolated and grown in standard medium. Besides morphological analysis, XTT proliferation tests were performed at various time periods to measure the metabolic activity of the cultivated fibroblasts. RESULTS: Statistical analysis revealed significant differences of nodule- and cord-derived fibroblasts after 1 hour (p = 0.0150), 8 hours (p < 0.0001), and 16 hours (p < 0.0001). CONCLUSIONS: The authors suggest that distinct proliferative properties of Dupuytren-derived fibroblasts are dependent on the cells' origin. Conclusions about the cause or pathogenesis cannot yet be drawn. Further investigation concerning their apparently different fibroproliferative properties is necessary.

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