Cellular, molecular, and biophysical control of epithelial cell intercalation.

Cellular, molecular, and biophysical control of epithelial cell intercalation.
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DOI:
10.1016/bs.ctdb.2019.11.014
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发表时间:
2020
影响因子:
--
通讯作者:
Zallen JA
Zallen JA
中科院分区:
生物学2区
文献类型:
--
作者:
Paré AC;Zallen JA

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Convergent extension is a conserved mechanism for elongating tissues. In the Drosophila embryo, convergent extension is driven by planar polarized cell intercalation and is a paradigm for understanding the cellular, molecular, and biophysical mechanisms that establish tissue structure. Studies of convergent extension in Drosophila have provided key insights into the force-generating molecules that promote convergent extension in epithelial tissues, as well as the global systems of spatial information that systematically organize these cell behaviors. A general framework has emerged in which asymmetrically localized proteins involved in cytoskeletal tension and cell adhesion direct oriented cell movements, and spatial signals provided by the Toll, Tartan, and Teneurin receptor families break planar symmetry to establish and coordinate planar cell polarity throughout the tissue. In this chapter, we describe the cellular, molecular, and biophysical mechanisms that regulate cell intercalation in the Drosophila embryo, and discuss how research in this system has revealed conserved biological principles that control the organization of multicellular tissues and animal body plans.
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