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不同浓度葡萄糖对MG63细胞株护骨素和护骨素配体及其相关因子表达的影响 被引量:6

Effects of different concentrations of glucose on the expressions of osteoprotegerin,the ligand of osteoprotegerin and related cytokines in MG63 cells
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摘要 目的:观察不同葡萄糖浓度环境下人成骨肉瘤MG63细胞株护骨素(OPG)、护骨素配体(OPGL)及其相关因子如肿瘤坏死因子相关凋亡诱导配体(TRAIL)、巨噬细胞集落刺激因子(M-CSF)、转化生长因子β(TGF-β)的表达。方法:用RT-PCR法检测基因表达情况。结果:高糖能下调MG63细胞中OPG及TGF-β的表达,上调OPGL、M-CSF和TRAIL的表达。结论:高糖环境可能导致成骨细胞中OPG及TGF-β的表达减少,OPGL、M-CSF和TRAIL等细胞因子的表达增多,使破骨细胞的数目和活性增加,骨吸收增强和骨量丢失,这可能是糖尿病骨质疏松症的一个重要的发病机制。 Objective :To observe the regulative effects of different concentrations of glucose on the expressions of osteoprotegerin ( OPG), the ligand of osteoprotegerin (OPGL) and the related cytokines [ tumor necrosis factor related apoptosis inducing ligand (TRAIL), macrophage colony-stimulating factor(M-CSF) and transforming growth factor β(TGF-β) ] in osteosarcoma MG63 cells. Methods:The expressions of OPG,OPGL, M-CSF,TRAIL and TGF-β mRNA was examined by reverse transcriptase (RT)-PCR. Results : High concentration glucose up-regulated the expression of OPGL, M-CSF and TRAIL but downregulated OPG and TGF-β expression in the MG63 cells. Conclusion:One of the key pathogenetic factors of diabetic osteoporosis is that high concentration glucose leads to the down-regulated expression of OPG and TGF-β but the up-regulated expression of some bone-resorbing cytokines such as OPGL, M-CSF and TRAIL in osteoblasts, then stimulates osteoclast differentiation and activity, which potentiates bone resorption and bone loss.
出处 《医学研究生学报》 CAS 2007年第2期146-149,共4页 Journal of Medical Postgraduates
关键词 高糖 MG63细胞 护骨素 High glucose concentration MG63 cells Osteoprotegerin
作者简介 周玮(1970-),女,江苏淮安人,主治医师,医学硕士研究生,从事内分泌专业。 通讯作者:姬秋和(1962-),男,湖北武汉人,教授,医学博士,博士生导师,从事内分泌专业。
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参考文献14

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