[Effects of reconstructive human acidic fibroblast growth factor and wild type acidic fibroblast growth factor on...

To investigate the effects of reconstructive human acidic fibroblast growth factor (aFGF) and wild type aFGF on skin cell proliferation in rat.

Neonatal rat skin (area of 2 mmx2 mm) was cultured in Dulbecco's modification of Eagle's medium containing reconstructive human aFGF and wild type aFGF, respectively. The concentrations of aFGF were 1 microg/L, 10 microg/L, and 100 microg/L. After being cultured for 4 days, the area of skin was measured.

After treatment with two different growth factors in three different concentrations (1 microg/L, 10 microg/L and 100 microg/L) for 4 days, the areas of skin in three reconstructive human aFGF groups were 1.4, 1.5 and 1.3 fold of that of control, respectively and the areas of three wild type aFGF groups were 1.5, 3.2 and 1.6 fold of that of control, respectively, while the area of skin in the control group was (2.96+/-1.12) mm(2). In comparison with those of other groups, the skin area of 10 microg/L wild type aFGF group was significantly increased (P<0.05).

Reconstructive human aFGF confers less impact on cutaneous cell growth. The capability of wild type aFGF to induce cutaneous cell proliferation is much greater than that of reconstructive human aFGF.