論文

査読有り
2015年10月

Three-dimensional tracking of plus-tips by lattice light-sheet microscopy permits the quantification of microtubule growth trajectories within the mitotic apparatus

JOURNAL OF BIOMEDICAL OPTICS
  • Norio Yamashita
  • ,
  • Masahiko Morita
  • ,
  • Wesley R. Legant
  • ,
  • Bi-Chang Chen
  • ,
  • Eric Betzig
  • ,
  • Hideo Yokota
  • ,
  • Yuko Mimori-Kiyosue

20
10
開始ページ
101206
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1117/1.JBO.20.10.101206
出版者・発行元
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS

Mitotic apparatus, which comprises hundreds of microtubules, plays an essential role in cell division, ensuring the correct segregation of chromosomes into each daughter cell. To gain insight into its regulatory mechanisms, it is essential to detect and analyze the behavior of individual microtubule filaments. However, the discrimination of discrete microtubule filaments within the mitotic apparatus is beyond the capabilities of conventional light microscopic technologies. Recently, we detected three-dimensional (3-D) microtubule growth dynamics within the cellular cytoplasmic space using lattice light-sheet microscopy in conjunction with microtubule growth marker protein end-binding 1, a microtubule plus-end-tracking protein, which was fused to green fluorescent protein (EB1-GFP). This technique enables high-resolution 3-D imaging at subsecond intervals. We adapted mathematical computing and geometric representation techniques to analyze spatial variations in microtubule growth dynamics within the mitotic spindle apparatus. Our analytical approach enabled the different dynamic properties of individual microtubules to be determined, including the direction and speed of their growth, and their growth duration within a 3-D spatial map. Our analysis framework provides an important step toward a more comprehensive understanding of the mechanisms driving cellular machinery at the whole-cell level. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

リンク情報
DOI
https://doi.org/10.1117/1.JBO.20.10.101206
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/26527322
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000366017100007&DestApp=WOS_CPL
ID情報
  • DOI : 10.1117/1.JBO.20.10.101206
  • ISSN : 1083-3668
  • eISSN : 1560-2281
  • PubMed ID : 26527322
  • Web of Science ID : WOS:000366017100007

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