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- W2011070504 abstract "The mitotic spindle of animal cells is a bipolar array of microtubules that guides chromosome segregation during cell division [1Wittmann T. Hyman A. Desai A. The spindle a dynamic assembly of microtubules and motors.Nat. Cell Biol. 2001; 3: E28-E34Crossref PubMed Scopus (397) Google Scholar]. It has been proposed that during spindle assembly chromatin can positively influence microtubule stability at a distance from its surface throughout its neighboring cytoplasm [2Karsenti E. Vernos I. The mitotic spindle a self-made machine.Science. 2001; 294: 543-547Crossref PubMed Scopus (366) Google Scholar]. However, such an “à distance” effect has never been visualized directly. Here, we have used centrosomal microtubules and chromatin beads to probe the regulation of microtubule behavior around chromatin in Xenopus egg extracts. We show that, in this system, chromatin does affect microtubule formation at a distance, inducing preferential orientation of centrosomal microtubules in its direction. Moreover, this asymmetric distribution of microtubules is translated into a directional migration of centrosomal asters toward chromatin and their steady-state repositioning within 10 μm of chromatin. To our knowledge, this is the first direct evidence of a long-range guidance effect at the sub-cellular level." @default.
- W2011070504 created "2016-06-24" @default.
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- W2011070504 creator A5090602839 @default.
- W2011070504 date "2003-09-01" @default.
- W2011070504 modified "2023-10-09" @default.
- W2011070504 title "Long-Range Communication between Chromatin and Microtubules in Xenopus Egg Extracts" @default.
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- W2011070504 doi "https://doi.org/10.1016/j.cub.2003.09.006" @default.
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