TherFamFrancoV1, France, Analysis, bibRecord, 000021

Cytokinesis defines a spatial landmark for hepatocyte polarization and apical lumen formation

Identifieur interne : 000021 ( France/Analysis ); précédent : 000020; suivant : 000022

Cytokinesis defines a spatial landmark for hepatocyte polarization and apical lumen formation

Auteurs : Ting Wang [États-Unis] ; Kilangsungla Yanger [États-Unis] ; Ben Z. Stanger [États-Unis] ; Doris Cassio [France] ; Erfei Bi [États-Unis]

Source :

Journal of Cell Science [ 0021-9533 ] ; 2014.

RBID : PMC:4038943

Abstract

ABSTRACT

By definition, all epithelial cells have apical–basal polarity, but it is unclear how epithelial polarity is acquired and how polarized cells engage in tube formation. Here, we show that hepatocyte polarization is linked to cytokinesis using the rat hepatocyte cell line Can 10. Before abscission, polarity markers are delivered to the site of cell division in a strict spatiotemporal order. Immediately after abscission, daughter cells remain attached through a unique disc-shaped structure, which becomes the site for targeted exocytosis, resulting in the formation of a primitive bile canaliculus. Subsequently, oriented cell division and asymmetric cytokinesis occur at the bile canaliculus midpoint, resulting in its equal partitioning into daughter cells. Finally, successive cycles of oriented cell division and asymmetric cytokinesis lead to the formation of a tubular bile canaliculus, which is shared by two rows of hepatocytes. These findings define a novel mechanism for cytokinesis-linked polarization and tube formation, which appears to be broadly conserved in diverse cell types.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038943

DOI: 10.1242/jcs.139923
PubMed: 24706948
PubMed Central: 4038943

Affiliations:

France, États-Unis

Links to Exploration step

PMC:4038943

Le document en format XML

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Cytokinesis defines a spatial landmark for hepatocyte polarization and apical lumen formation

Cytokinesis defines a spatial landmark for hepatocyte polarization and apical lumen formation

Source :

Abstract

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