期刊
NATURE METHODS
卷 7, 期 9, 页码 761-U134出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nmeth.1493
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资金
- NCRR NIH HHS [C06 RR16490, C06 RR016490-01, C06 RR016490] Funding Source: Medline
- NIGMS NIH HHS [R01 GM079139, U01 GM067230, U01 GM067230-08, R01 GM079139-04] Funding Source: Medline
Regulation of microtubule dynamics is essential for many cell biological processes and is likely to be variable between different subcellular regions. We describe a computational approach to analyze microtubule dynamics by detecting growing microtubule plus ends. Our algorithm tracked all EB1-EGFP comets visible in an image time-lapse sequence allowing the detection of spatial patterns of microtubule dynamics. We introduce spatiotemporal clustering of EB1-EGFP growth tracks to infer microtubule behaviors during phases of pause and shortening. We validated the algorithm by comparing the results to data for manually tracked, homogeneously labeled microtubules and by analyzing the effects of well-characterized inhibitors of microtubule polymerization dynamics. We used our method to analyze spatial variations of intracellular microtubule dynamics in migrating epithelial cells.
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