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Chapter 3: acquisition of membrane polarity in epithelial tube formation patterns, signaling pathways, molecular mechanisms, and disease.

机译:第3章:获取上皮管形成模式,信号传导途径,分子机制和疾病中的膜极性。

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Epithelia coordinate the polarity of individual cells, in space and time, with surrounding cells and the extracellular matrix (ECM) to organize three-dimensional structures that shape tissues and organs. One of the most important features of epithelial polarization is the asymmetric distribution of membrane surfaces with the apical surface facing a lumen or outside of the organism, and a basolateral surface facing other cells and ECM. This chapter discuss the processes required for the acquisition of the asymmetric distribution of membrane surfaces during morphogenesis, which include trafficking pathways, vesicle-sorting machineries, formation of junctional and polarity complexes, and the establishment of signaling networks. In addition, different mechanisms and patterns are described for forming luminal spaces, and how alterations in cell polarity are associated with important human diseases such as cancer.
机译:上皮细胞在空间和时间上与周围细胞和细胞外基质(ECM)协调单个细胞的极性,以组织形成组织和器官形状的三维结构。上皮极化的最重要特征之一是膜表面的不对称分布,其顶表面面对生物体的内腔或外部,而基底外侧表面面对其他细胞和ECM。本章讨论在形态发生过程中获取膜表面不对称分布所需的过程,包括运输途径,囊泡分选机制,连接和极性复合物的形成以及信号网络的建立。另外,描述了形成腔空间的不同机制和模式,以及细胞极性的改变如何与重要的人类疾病(例如癌症)相关联。

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