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首页> 外文期刊>Journal of Cellular Physiology >BMP-2 Enhances Lgr4 Gene Expression in Osteoblastic Cells
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BMP-2 Enhances Lgr4 Gene Expression in Osteoblastic Cells

机译:BMP-2增强Lgr4基因表达成骨细胞的细胞

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Osteoporosis is one of the most prevalent diseases and the number of patients suffering from this disease is soaring due to the increase in the aged population in the world. The severity of bone loss in osteoporosis is based on the levels of impairment in the balance between bone formation and bone resorption, two arms of the bone metabolism, and bone remodeling. However, determination of bone formation levels is under many layers of control that are as yet fully defined. Bone morphogenetic protein (BMP) plays a key role in regulation of bone formation while its downstream targets are still incompletely understood. Lgr4 gene encodes an orphan receptor and has been identified as a genetic determinant for bone mass in osteoporotic patients. Here, we examine the effects of BMP on the expression of Lgr4 in osteoblastic cells. Lgr4 gene is expressed in an osteoblastic cell line, MC3T3E1 in a time dependent manner during the culture. BMP treatment enhances Lgr4 mRNA expression at least in part via transcriptional event. When Lgr4 mRNA is knocked down, the levels of BMP-induced increase in alkaline phosphatase (Alp) activity and Alp mRNA are suppressed. BMP enhancement of Lgr4 gene expression is suppressed by FGF and reversed by dexamethasone. BMP also enhances Lgr4 expression in primary cultures of calvarial osteoblasts. These data indicate that Lgr4 gene is regulated by BMP and is required for BMP effects on osteoblastic differentiation. (C) 2015 Wiley Periodicals, Inc.
机译:骨质疏松症是最常见的疾病之一和病人的数量疾病是由于飞涨增加世界上老年人口。骨质疏松症是基于水平的骨质流失平衡障碍的骨头形成和骨吸收,两臂骨代谢和骨重建。测定骨形成水平之下许多层尚未完全的控制定义的。关键的作用在调节骨形成其下游目标仍然是不完全的理解。并已被确认为遗传因素对骨质疏松患者的骨量。检查BMP的表达的影响Lgr4在成骨细胞的细胞。表达成骨细胞的细胞系,MC3T3E1时间依赖的方式在文化。BMP治疗提高Lgr4 mRNA的表达至少在一部分通过转录事件。Lgr4 mRNA撞倒,的水平碱性磷酸酶BMP-induced增加(高山)活动和高山信使rna抑制。增强Lgr4基因表达的抑制和FGF的逆转地塞米松。提高Lgr4表达主要的文化颅顶的成骨细胞。Lgr4基因受BMP和需要BMP对成骨细胞分化的影响。2015年威利期刊、公司。

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