Measuring structural dynamics of chromosomes in living cells by fluorescence microscopy

被引:40
作者
Mora-Bermudez, Felipe [1 ]
Ellenberg, Jan [1 ]
机构
[1] European Mol Biol Lab, Gene Express Unit, D-69117 Heidelberg, Germany
关键词
mitosis; chromosome structure; chromosome condensation; live-cell imaging; quantitative fluorescence microscopy; 4D imaging;
D O I
10.1016/j.ymeth.2006.07.035
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Mitotic and meiotic chromosomes are the compact packages that faithfully transport the genetic and epigenetic information to the following cell generations. How chromatin dynamically cycles between the decompacted interphase state that supports transcription and replication and the compacted state required for chromosome segregation is not understood. To address this long-standing problem, the structure of chromatin should ideally be studied in the physiological context of intact cells and organisms. We discuss here, the contributions that live-cell imaging can and has made to the study of mitotic chromosome compaction and highlight the power and limitations of this approach. We review methodologies used and suggest that combinatorial approaches and developing new imaging technologies will be key to shedding light on this long-standing question in cell biology. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:158 / 167
页数:10
相关论文
共 77 条
[51]   Chromosome elasticity and mitotic polar ejection force measured in living Drosophila embryos by four-dimensional microscopy-based motion analysis [J].
Marshall, WF ;
Marko, JF ;
Agard, DA ;
Sedat, JW .
CURRENT BIOLOGY, 2001, 11 (08) :569-578
[52]   DNA damage during mitosis in human cells delays the metaphase/anaphase transition via the spindle-assembly checkpoint [J].
Mikhailov, A ;
Cole, RW ;
Rieder, CL .
CURRENT BIOLOGY, 2002, 12 (21) :1797-1806
[53]   High-throughput RNAi screening by time-lapse imaging of live human cells [J].
Neumann, B ;
Held, M ;
Liebel, U ;
Erfle, H ;
Rogers, P ;
Pepperkok, R ;
Ellenberg, J .
NATURE METHODS, 2006, 3 (05) :385-390
[54]   A photoactivatable GFP for selective photolabeling of proteins and cells [J].
Patterson, GH ;
Lippincott-Schwartz, J .
SCIENCE, 2002, 297 (5588) :1873-1877
[55]   STRUCTURE OF HISTONE-DEPLETED METAPHASE CHROMOSOMES [J].
PAULSON, JR ;
LAEMMLI, UK .
CELL, 1977, 12 (03) :817-828
[56]  
Phair RD, 2004, METHOD ENZYMOL, V375, P393
[57]   Mitotic chromosomes are chromatin networks without a mechanically contiguous protein scaffold [J].
Poirier, MG ;
Marko, JF .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (24) :15393-15397
[58]   Micromechanical studies of mitotic chromosomes [J].
Poirier, MG ;
Marko, JF .
CURRENT TOPICS IN DEVELOPMENTAL BIOLOGY, VOL 55, 2003, 55 :75-141
[59]   Proteolysis of mitotic chromosomes induces gradual and anisotropic decondensation correlated with a reduction of elastic modulus and structural sensitivity to rarely cutting restriction enzymes [J].
Pope, LH ;
Xiong, C ;
Marko, JF .
MOLECULAR BIOLOGY OF THE CELL, 2006, 17 (01) :104-113
[60]   Automatic real-time three-dimensional cell tracking by fluorescence microscopy [J].
Rabut, G ;
Ellenberg, J .
JOURNAL OF MICROSCOPY, 2004, 216 :131-137