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首页> 外文期刊>Cell and Tissue Research >Development of secondary palate requires strict regulation of ECM remodeling: sequential distribution of RECK, MMP-2, MMP-3, and MMP-9.
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Development of secondary palate requires strict regulation of ECM remodeling: sequential distribution of RECK, MMP-2, MMP-3, and MMP-9.

机译:次级pa的发展需要严格控制ECM重塑:RECK,MMP-2,MMP-3和MMP-9的顺序分布。

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摘要

We have evaluated RECK (reversion-inducing-cysteine-rich protein with Kazal motifs), MMP-2 (matrix metalloproteinase-2), MMP-3, and MMP-9 involvement during palate development in mice by using various techniques. Immunohistochemical features revealed the distribution of RECK, MMP-2, and MMP-3 in the mesenchymal tissue and in the midline epithelial seam at embryonic day 13 (E13), MMPs-2, -3, and -9 being particularly expressed at E14 and E14.5. In contrast, RECK was weakly immunostained at these times. Involvement of MMPs was validated by measuring not only their protein expression, but also their activity (zymograms). In situ hybridization signal (ISH) for RECK transcript was distributed in mesenchymal and epithelial regions within palatal shelves at all periods evaluated. Importantly, the results from ISH analysis were in accord with those obtained by real-time polymerase chain reaction. The expression of RECK was found to be temporally regulated, which suggested possible roles in palatal ontogeny. Taken together, our results clearly show that remodeling of the extracellular matrix is finely modulated during secondary palate development and occurs in a sequential manner.
机译:我们已经通过使用多种技术评估了RECK(具有Kazal基序的诱导还原型半胱氨酸富集的蛋白质),MMP-2(基质金属蛋白酶-2),MMP-3和MMP-9参与小鼠上颚发育的过程。免疫组织化学特征显示RECK,MMP-2和MMP-3在胚胎第13天(E13)在间充质组织和中线上皮接缝中分布,MMPs-2,-3和-9在E14和E14时特别表达。 E14.5。相反,此时RECK的免疫力较弱。 MMP的参与不仅通过测量其蛋白质表达,而且还通过测量其活性(酶谱图)来验证。 RECK转录本的原位杂交信号(ISH)在所有评估的时期均分布在pa架的间质和上皮区域。重要的是,ISH分析的结果与通过实时聚合酶链反应获得的结果一致。发现RECK的表达在时间上受到调节,这提示在onto癌发生中可能的作用。综上所述,我们的结果清楚地表明,细胞外基质的重塑在继发性上颚发育过程中得到了很好的调节,并以顺序的方式发生。

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