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- 2016
LPS刺激小鼠骨细胞RANKL/OPG和IL-6表达的实验研究
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Abstract:
摘要 目的: 探讨LPS对体外培养的小鼠MLO-Y4细胞RANKL/OPG和IL-6表达的影响。方法: 以5 mg/L的LPS刺激细胞,用CCK-8法于(12、24、48 h)后检测细胞的增殖;以不同浓度(1、10、100、500、1000 μg/L)的LPS刺激细胞,分别在作用4 h和1.5 h后用RT-PCR检测细胞对RANKL/OPG和IL-6的相对表达;以100 μg/L的LPS刺激细胞,分别在作用(0.5、1、2、4、8 h)和(0.5、1、1.5、2、4 h)两种不同时间后用RT-PCR检测细胞对RANKL/OPG和IL-6的相对表达。结果: LPS对MLO-Y4细胞增殖无影响;100 μg/L的LPS能显著上调细胞对RANKL和IL-6的相对表达,与(500, 1000 μg/L)LPS的上调结果无统计学差别;除0.5 h外其余时间点LPS均上调细胞对RANKL和IL-6的相对表达,并分别在4 h和1.5 h达到峰值;所有样本LPS对细胞OPG的相对表达均无影响。结论: 一定浓度的 LPS上调了MLO-Y4 细胞对RANKL和IL-6的表达,而对OPG的表达无影响
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