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© Research
Publication : Biochimica et biophysica acta

Phosphoinositides: Lipids with informative heads and mastermind functions in cell division

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Biochimica et biophysica acta - 04 Nov 2014

Cauvin C, Echard A

Link to Pubmed [PMID] – 25449648

Biochim. Biophys. Acta 2015 Jun;1851(6):832-43

Phosphoinositides are low abundant but essential phospholipids in eukaryotic cells and refer to phosphatidylinositol and its seven polyphospho-derivatives. In this review, we summarize our current knowledge on phosphoinositides in multiple aspects of cell division in animal cells, including mitotic cell rounding, longitudinal cell elongation, cytokinesis furrow ingression, intercellular bridge abscission and post-cytokinesis events. PtdIns(4,5)P₂production plays critical roles in spindle orientation, mitotic cell shape and bridge stability after furrow ingression by recruiting force generator complexes and numerous cytoskeleton binding proteins. Later, PtdIns(4,5)P₂hydrolysis and PtdIns3P production are essential for normal cytokinesis abscission. Finally, emerging functions of PtdIns3P and likely PtdIns(4,5)P₂have recently been reported for midbody remnant clearance after abscission. We describe how the multiple functions of phosphoinositides in cell division reflect their distinct roles in local recruitment of protein complexes, membrane traffic and cytoskeleton remodeling. This article is part of a Special Issue entitled Phosphoinositides.

http://www.ncbi.nlm.nih.gov/pubmed/25449648