碱性成纤维细胞生长因子对体外培养人牙周膜细胞的作用

背景：碱性成纤维细胞生长因子是具有多功能的细胞生长因子，对来源于中胚层及神经外胚层的细胞有明显的促进增殖作用。目的：观察碱性成纤维细胞生长因子对体外培养人牙周膜细胞的作用。方法：将第5代人牙周膜细胞，以1×108 L-1的浓度分别接种到96孔板，随机分成4组，分别加入含0，1，10，100 μg/L的碱性成纤维细胞生长因子、体积分数为15%胎牛血清的α-MEM培养基进行培养。在第1，3，5，7天测定细胞的增殖情况，在第1，7天检测碱性磷酸酶活性。结果与结论：4组之间人牙周膜细胞增殖情况的差异有显著性意义(F=6.586，P=0.024)，随着碱性成纤维细胞生长因子质量浓度的增大，吸光度值均增大，其中100 μg/L碱性成纤维细胞生长因子组的吸光度值均大于其他组(P < 0.05)；碱性成纤维细胞生长因子各组的碱性磷酸酶活性均低于对照组(P=0.000)，浓度越大，活性越低(P < 0.05)。结果显示碱性成纤维细胞生长因子在1-100 μg/L范围内质量浓度越高，促进人牙周膜细胞增殖和抑制碱性磷酸酶活性的作用越强。

Effect of basic fibroblast growth factor on human periodontal ligament cells cultured in vitro

BACKGROUND: Basic fibroblast growth factor is a pluripotent cytokine that can promote the proliferation of mesodermal and neuroectodermal cells.OBJECTIVE: To observe the effect of basic fibroblast growth factor in human periodontal ligament cells cultured in vitro.METHODS: Human periodontal ligament cells at passage 5 were inoculated into the 96-well plates at the density of 1×108/L, and were randomly divided into four groups. The cells were cultured in α-MEM containing 15% fetal bovine serum and 0, 1, 10, 100 μg/L basic fibroblast growth factor, respectively. At 1, 3, 5, 7 days of the culture, the cell proliferation was determined, and the activity of alkaline phosphates was detected at 1 and 7 days. RESULTS AND CONCLUSION: There were significant differences in the proliferation of human periodontal ligament cells among the four groups (F=6.586, P=0.024). As the increase of the basic fibroblast growth factor concentrations, the absorbance value was gradually increased and reached the peak in 100 μg/L basic fibroblast growth factor group (P < 0.05). The alkaline phosphatase activity in basic fibroblast growth factor groups was lower than that of the control group (P=0.000), the higher the concentration was, the lower activity was (P < 0.05). Results show that basic fibroblast growth factor can promote the proliferation of human periodontal ligament cells and inhibit the activity of alkaline phosphatase, and the effect is concentration-dependent.