LGN Directs Interphase Endothelial Cell Behavior Via the Microtubule Network

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2015 Sep 24

PMID 26398908

Citations 7

Authors

Catherine E Wright

Erich J Kushner

Quansheng Du

Victoria L Bautch

Affiliations

Soon will be listed here.

Abstract

Angiogenic sprouts require coordination of endothelial cell (EC) behaviors as they extend and branch. Microtubules influence behaviors such as cell migration and cell-cell interactions via regulated growth and shrinkage. Here we investigated the role of the mitotic polarity protein LGN in EC behaviors and sprouting angiogenesis. Surprisingly, reduced levels of LGN did not affect oriented division of EC within a sprout, but knockdown perturbed overall sprouting. At the cell level, LGN knockdown compromised cell-cell adhesion and migration. EC with reduced LGN levels also showed enhanced growth and stabilization of microtubules that correlated with perturbed migration. These results fit a model whereby LGN influences interphase microtubule dynamics in endothelial cells to regulate migration, cell adhesion, and sprout extension, and reveal a novel non-mitotic role for LGN in sprouting angiogenesis.

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