期刊
DEVELOPMENTAL CELL
卷 39, 期 1, 页码 61-74出版社
CELL PRESS
DOI: 10.1016/j.devcel.2016.09.003
关键词
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资金
- National Natural Science Foundation of China [31271426]
- National Basic Research Program of China [2014CB942802]
- Chinese Academy of Sciences [KJZD-EW-L08]
For adaptation to complex cellular functions, dynamic cytoskeletal networks are required. There are two major components of the cytoskeleton, microtubules and actin filaments, which form an intricate network maintaining an exquisite cooperation to build the physical basis for their cellular function. However, little is known about the molecular mechanism underlying their synergism. Here, we show that in Caco2 epithelial cells, noncentrosomal microtubules crosstalk with F-actin through their minus ends and contribute to the regulation of focal adhesion size and cell migration. We demonstrate that ACF7, a member of the spectraplakin family of cytoskeletal crosslinking proteins, interacts with Nezha (also called CAMSAP3) at the minus ends of noncentrosomal microtubules and anchors them to actin filaments. Those noncentrosomal microtubules cooperate with actin filaments through retrograde flow to keep their length and orientation perpendicular to the cell edge as well as regulate focal adhesion size and cell migration.
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