Ameloblastin upstream region contains structural elements regulating transcriptional activity in a stromal cell line derived from bone marrow.

Ameloblastin upstream region contains structural elements regulating transcriptional activity in a stromal cell line derived from bone marrow.
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成釉细胞上游区域含有调节骨髓基质细胞系转录活性的结构元件。

DOI:
10.1111/j.1600-0722.2011.00910.x
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发表时间:
2011
影响因子:
1.9
通讯作者:
Lyngstadaas,StaaleP
Lyngstadaas,StaaleP
中科院分区:
医学4区
文献类型:
--
作者:
Tamburstuen,MargarethV;Snead,MalcolmL;Reseland,JanneE;Paine,MichaelL;Lyngstadaas,StaaleP

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坦伯斯图恩MV,Snead ML,Resland Je,Paine ML,Lyngstadaas SP。成釉蛋白上游区域包含调控骨髓基质细胞系转录活性的结构元素.欧洲口腔科学杂志2011;119(增刊.1):286-292。2011EUR J口腔成釉蛋白(AMBN)最初被描述为一种牙齿特有的细胞外基质蛋白,但目前的数据表明,AMBN存在于许多不同的间叶性组织中。Ambn基因启动子区域调控元件的识别将有助于识别潜在的间充质特异性转录因子。在这项研究中,我们将小鼠Ambn转录起始点上游的3,788个碱基(和下游的54个碱基)亚克隆到LacZ报告构建体中,并将其命名为3788-Ambn-lacZ。在对3,788-bpAmbn启动子区域的电子分析中,确定了50个潜在的顺式调节元件,其中29个已知在间充质起源的细胞群体中具有功能。报告载体在转基因的骨髓细胞中被激活,在细胞培养中加入重组AMBN、干扰素-γ、5-羟色胺或地塞米松后诱导启动子活性。我们讨论了Ambnin潜在的顺式作用基因调控元件与骨形态发生的相对意义。在临床外科环境中开发骨修复和替换的策略时,了解Ambn基因调节元件将是重要的。
Tamburstuen MV, Snead ML, Reseland JE, Paine ML, Lyngstadaas SP. Ameloblastin upstream region contains structural elements regulating transcriptional activity in a stromal cell line derived from bone marrow.Eur J Oral Sci 2011; 119 (Suppl. 1): 286–292. © 2011 Eur J Oral SciAmeloblastin (AMBN) was originally described as a tooth‐specific extracellular matrix protein, but current data have shown that AMBN is present in many different tissues of mesenchymal origin. The identification of regulatory elements in the promoter region of theAmbngene would assist in identifying potential mesenchymal‐specific transcriptional factors. In this study we subcloned a 3,788‐bp region upstream (and a 54‐bp region downstream) of the mouseAmbntranscriptional start site into aLacZreporter construct and called this construct 3788‐Ambn‐lacZ.In silicoanalysis of the 3,788‐bpAmbnpromoter region identified 50 potential cis‐regulatory elements, 29 of which are known to be functional in cell populations of mesenchymal origin. The reporter construct was activated in transfected bone marrow cells, and the promoter activity was induced in cell cultures following addition of recombinant AMBN, interferon‐γ, serotonin, or dexamethasone. We discuss the relative significance of the potential cis‐acting gene‐regulatory elements ofAmbnin relation to bone morphogenesis. Knowledge ofAmbngene‐regulatory elements will be of importance when developing strategies for bone repair and replacement in a clinical surgical setting.
amelin 的表达和创伤诱导的牙本质形成
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