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- W1960415981 abstract "Cells perpetually face the decision to proliferate or to stay quiescent. Here we show that upon quiescence establishment, Schizosaccharomyces pombe cells drastically rearrange both their actin and microtubule (MT) cytoskeletons and lose their polarity. Indeed, while polarity markers are lost from cell extremities, actin patches and cables are reorganized into actin bodies, which are stable actin filament-containing structures. Astonishingly, MTs are also stabilized and rearranged into a novel antiparallel bundle associated with the spindle pole body, named Q-MT bundle. We have identified proteins involved in this process and propose a molecular model for Q-MT bundle formation. Finally and importantly, we reveal that Q-MT bundle elongation is involved in polarity reestablishment upon quiescence exit and thereby the efficient return to the proliferative state. Our work demonstrates that quiescent S. pombe cells assemble specific cytoskeleton structures that improve the swiftness of the transition back to proliferation." @default.
- W1960415981 created "2016-06-24" @default.
- W1960415981 creator A5032558892 @default.
- W1960415981 creator A5040293529 @default.
- W1960415981 creator A5041352491 @default.
- W1960415981 creator A5058559220 @default.
- W1960415981 creator A5079466153 @default.
- W1960415981 creator A5082571332 @default.
- W1960415981 creator A5083989677 @default.
- W1960415981 date "2015-06-29" @default.
- W1960415981 modified "2023-10-17" @default.
- W1960415981 title "A stable microtubule array drives fission yeast polarity reestablishment upon quiescence exit" @default.
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