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Elastic fibers and elastin receptor complex: Neuraminidase-1 takes the center stage.
Matrix Biology ( IF 4.5 ) Pub Date : 2019-06-18 , DOI: 10.1016/j.matbio.2019.06.007
Amar Bennasroune 1 , Béatrice Romier-Crouzet 1 , Sébastien Blaise 1 , Muriel Laffargue 2 , Roman G Efremov 3 , Laurent Martiny 1 , Pascal Maurice 1 , Laurent Duca 1
Affiliation  

Extracellular matrix (ECM) has for a long time being considered as a simple architectural support for cells. It is now clear that ECM presents a fundamental influence on cells driving their phenotype and fate. This complex network is highly specialized and the different classes of macromolecules that comprise the ECM determine its biological functions. For instance, collagens are responsible for the tensile strength of tissues, proteoglycans and glycosaminoglycans are essential for hydration and resistance to compression, and glycoproteins such as laminins facilitate cell attachment. The largest structures of the ECM are the elastic fibers found in abundance in tissues suffering high mechanical constraints such as skin, lungs or arteries. These structures present a very complex composition whose core is composed of elastin surrounded by a microfibrils mantle. Elastogenesis is a tightly regulated process involving the sialidase activity of the Neuraminidase-1 (Neu-1) sub-unit of the Elastin Receptor Complex. Interestingly, Neu-1 subunit also serves as a sensor of elastin degradation via its ability to transmit elastin-derived peptides signaling. Finally, reports showing that neuraminidase activity is able to regulate TGF-β activation raises questions about a possible role for Neu-1 in elastic fibers remodeling. In this mini review, we develop the concept of the regulation of the whole life of elastic fibers through an original scope, the key role of Neu-1 sialidase enzymatic activity.

中文翻译:

弹性纤维和弹性蛋白受体复合物:Neuraminidase-1处于中心地位。

长期以来,细胞外基质(ECM)被视为对细胞的简单架构支持。现在很清楚,ECM对驱动其表型和命运的细胞具有根本的影响。这个复杂的网络高度专业化,组成ECM的大分子的不同类别决定了它的生物学功能。例如,胶原蛋白负责组织的拉伸强度,蛋白聚糖和糖胺聚糖对于水合作用和抗压性至关重要,而糖蛋白(如层粘连蛋白)则有助于细胞附着。ECM的最大结构是在遭受高机械约束的组织(如皮肤,肺或动脉)中大量发现的弹性纤维。这些结构呈现出非常复杂的组成,其核心由被微纤丝覆盖物包围的弹性蛋白组成。弹性发生是一个严格调节的过程,涉及弹性蛋白受体复合物的神经氨酸酶-1(Neu-1)亚基的唾液酸酶活性。有趣的是,Neu-1亚基通过其传递弹性蛋白衍生的肽信号传导的能力,还可以用作弹性蛋白降解的传感器。最后,有关神经氨酸酶活性能够调节TGF-β活化的报道提出了有关Neu-1在弹性纤维重塑中可能作用的疑问。在这个小型综述中,我们通过原始范围(Neu-1唾液酸酶酶活性的关键作用)开发了调节弹性纤维整个寿命的概念。弹性发生是一个严格调节的过程,涉及弹性蛋白受体复合物的神经氨酸酶-1(Neu-1)亚基的唾液酸酶活性。有趣的是,Neu-1亚基通过其传递弹性蛋白衍生的肽信号传导的能力,还可以用作弹性蛋白降解的传感器。最后,有关神经氨酸酶活性能够调节TGF-β活化的报道提出了有关Neu-1在弹性纤维重塑中可能作用的疑问。在这个小型综述中,我们通过原始范围(Neu-1唾液酸酶酶活性的关键作用)开发了调节弹性纤维整个寿命的概念。弹性发生是一个严格调节的过程,涉及弹性蛋白受体复合物的神经氨酸酶-1(Neu-1)亚基的唾液酸酶活性。有趣的是,Neu-1亚基通过其传递弹性蛋白衍生的肽信号传导的能力,还可以用作弹性蛋白降解的传感器。最后,有关神经氨酸酶活性能够调节TGF-β活化的报道提出了有关Neu-1在弹性纤维重塑中可能作用的疑问。在这个小型综述中,我们通过原始范围(Neu-1唾液酸酶酶活性的关键作用)开发了调节弹性纤维整个寿命的概念。报告显示神经氨酸酶活性能够调节TGF-β活化,引发了有关Neu-1在弹性纤维重塑中可能作用的质疑。在这个小型综述中,我们通过原始范围(Neu-1唾液酸酶酶活性的关键作用)开发了调节弹性纤维整个寿命的概念。报告显示神经氨酸酶活性能够调节TGF-β活化,引发了有关Neu-1在弹性纤维重塑中可能作用的质疑。在这个小型综述中,我们通过原始范围(Neu-1唾液酸酶酶活性的关键作用)开发了调节弹性纤维整个寿命的概念。
更新日期:2019-11-18
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