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前列腺素E_2对人成骨样细胞白介素-6,骨保护素配体/骨保护素mRNA表达的影响 被引量:1

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摘要 目的研究前列腺素E2(PGE2)对人成骨瘤细胞MG-63分泌的细胞因子白介素-6(IL-6)、骨保护素(Osteoprotegerin,OPG)、骨保护素配体(L igand of receptor activator ofNF-κB,RANKL)表达的调节,探讨PGE引发骨吸收的机制。方法体外培养成骨瘤细胞株(MG-63),分别给予不同剂量的PGE2进行干预试验,用钙估法显示成骨细胞碱性磷酸酶的表达;用MTT法测定PGE2对MG-63细胞刺激增殖作用;提取总RNA进行半定量逆转录PCR分析,检测IL-6,OPG,RANKL基因表达水平的改变。结果PGE2减少碱性磷酸酶的表达,抑制MG-63细胞的增殖,并呈剂量依赖性的上调IL-6mRNA,RANKL/OPG mRNA水平。结论PGE2可以通过IL-6,RANKL/OPG mRNA基因水平的上调,促进骨吸收,此可能为PGE2导致溶骨性病变的重要发病机制。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2005年第12期1468-1471,共4页 Chinese Journal of Gerontology
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