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  • Title: [The influence of adrenaline on the expression of TGF-beta1, bFGF and I procollagen for hypertrophic scar].
    Author: Zhang CD, Tian Y, Song L, Zhang CP.
    Journal: Zhonghua Zheng Xing Wai Ke Za Zhi; 2005 Nov; 21(6):440-4. PubMed ID: 16463783.
    Abstract:
    OBJECTIVE: To investigate the influence of adrenaline on the expression of TGFbeta1, bFGF and procollagen for human normal and hypertrophic scar dermal fibroblasts cultured in vitro. METHODS: Human normal and hypertrophic scar dermal fibroblasts were propagated in a serum-free in vitro model with adrenaline for 24 hours. The human mRNA levels of bFGF, TGF-beta1 and I procollagen in fibroblasts were determined by RT-PCR. Levels of bFGF and TGF-beta1 in the supernatants of fibroblasts cultured in vitro were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS: In our study, adrenaline caused statistically significant increase in the peak levels of bFGF for normal and hypertrophic scar fibroblast cell lines (P < 0.01). It also caused statistically significant decrease in the level of TGF-beta1 for normal and hypertrophic scar fibroblast cell lines. Modulation of normal fibroblasts with 0.05, 0.10 and 0.20 micromol/L adrenaline resulted in a statistically significant (P < 0.01) decrease in the expression of I procollagen mRNA. However, only 0.20 micromol/L adrenaline can decreased the mRNA expression of I procollagen in the hypertrophic scar fibroblasts. CONCLUSIONS: We conclude from these results that adrenaline can increase the production of bFGF and decrease production of TGF-beta1 and I procollagen in human normal dermal and hypertrophic scar fibroblasts cultured in vitro.
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