本文選題：濃縮生長因子 + 骨結(jié)合�。� 參考：《華西口腔醫(yī)學(xué)雜志》2015年01期

【摘要】：目的探討濃縮生長因子提取液(CGFe)對鈦片表面MC3T3-E1細胞增殖分化的影響。方法實驗組使用含CGFe的α-MEM培養(yǎng)液(含10%胎牛血清)培養(yǎng)MC3T3-E1細胞,對照組則使用不含CGFe的α-MEM培養(yǎng)液(含10%胎牛血清)培養(yǎng)細胞。采用MTT法測定培養(yǎng)1、3、5 d時的細胞增殖情況,堿性磷酸酶(ALP)活性測定法檢測培養(yǎng)3、5 d時的細胞分化情況;通過掃描電子顯微鏡(SEM)觀察培養(yǎng)12 h時細胞在鈦片表面的形態(tài);通過熒光實時定量聚合酶鏈反應(yīng)(PCR)測定細胞培養(yǎng)3、7 d時核心結(jié)合蛋白因子2(Runx2)和成骨細胞特異性轉(zhuǎn)錄因子Osterix(Osx)基因的相對表達量。結(jié)果 MTT結(jié)果顯示:隨培養(yǎng)時間延長,細胞數(shù)量逐漸增加;各時間點實驗組細胞的吸光度值均明顯高于對照組(P0.05)。ALP活性隨著培養(yǎng)時間延長而增加,兩個時間點實驗組的吸光度值均明顯高于對照組(P0.05)。SEM觀察:培養(yǎng)12 h時,實驗組細胞在鈦片表面的形態(tài)較對照組更加伸展。PCR結(jié)果顯示:隨著培養(yǎng)時間延長,兩組細胞Runx2和Osx基因的表達量逐漸增加,兩個時間點實驗組的表達量均明顯高于對照組(P0.05)。結(jié)論 CGFe能有效地促進MC3T3-E1細胞的增殖、分化及在鈦片表面的伸展。
[Abstract]:Objective to investigate the effect of concentrated growth factor extract (CGFe) on the proliferation and differentiation of MC3T3-E1 cells on titanium sheet. Methods MC3T3-E1 cells were cultured in 偽 -MEM medium (containing 10% fetal bovine serum) in experimental group and 偽 -MEM medium without CGFe (10% fetal bovine serum) in control group. MTT assay was used to determine the proliferation of cells at 5 days after culture, alkaline phosphatase (ALP) activity assay was used to detect the differentiation of cells at 5 days, scanning electron microscopy (SEM) was used to observe the morphology of the cells on the surface of titanium sheet after 12 hours culture. The relative expression of core binding protein factor 2 (Runx2) and osteoblast specific transcription factor Osterix (Osx) were measured by fluorescence real time quantitative polymerase chain reaction (PCR). Results MTT results showed that the number of cells increased gradually with the increase of culture time, and the absorbance value of experimental group was significantly higher than that of control group (P0.05). ALP activity increased with the increase of culture time. The absorbance of the experimental group was significantly higher than that of the control group (P0.05) .SEM observation at two time points: after 12 hours of culture, the morphology of the cells on the surface of the titanium slice in the experimental group was more extensive than that in the control group. The expression of Runx2 and Osx genes in the two groups increased gradually, and the expression levels of the experimental group were significantly higher than those of the control group at two time points (P0.05). Conclusion CGFe can effectively promote the proliferation, differentiation and extension of MC3T3-E1 cells.
【作者單位】： 煙臺市口腔醫(yī)院修復(fù)科;
【分類號】：R783

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