Theory of spatial patterns of intracellular organelles

被引:21
作者
Dinh, AT [1 ]
Pangarkar, C [1 ]
Theofanous, T [1 ]
Mitragotri, S [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
关键词
D O I
10.1529/biophysj.106.082875
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Here we report on a generalized theory of spatial patterns of intracellular organelles, which are controlled by cells using cytoskeleton-based movements powered by molecular motors. The theory reveals that organelles exhibit one of the four distinct, stable patterns, namely aggregation, hyperdispersion, radial dispersion, and areal dispersion. Existence of specific patterns is determined by the contributions from three transport mechanisms, characterized by two Peclet numbers. The predicted patterns compare well with experimental data. This study provides a firm theoretical ground for classification of spatial patterns of organelles and understanding their regulation by cells.
引用
收藏
页码:L67 / L69
页数:3
相关论文
共 15 条
[1]   A model for intracellular trafficking of adenoviral vectors [J].
Dinh, AT ;
Theofanous, T ;
Mitragotri, S .
BIOPHYSICAL JOURNAL, 2005, 89 (03) :1574-1588
[2]   Interactions and regulation of molecular motors in Xenopus melanophores [J].
Gross, SP ;
Tuma, MC ;
Deacon, SW ;
Serpinskaya, AS ;
Reilein, AR ;
Gelfand, VI .
JOURNAL OF CELL BIOLOGY, 2002, 156 (05) :855-865
[3]   Self-organized density patterns of molecular motors in arrays of cytoskeletal filaments [J].
Klumpp, S ;
Nieuwenhuizen, TM ;
Lipowsky, R .
BIOPHYSICAL JOURNAL, 2005, 88 (05) :3118-3132
[4]   A stochastic model for patterning of the cytoplasm by the saltatory movement [J].
Maly, IV .
JOURNAL OF THEORETICAL BIOLOGY, 2002, 216 (01) :59-71
[5]   Pigment cells: A model for the study of organelle transport [J].
Nascimento, AA ;
Roland, JT ;
Gelfand, VI .
ANNUAL REVIEW OF CELL AND DEVELOPMENTAL BIOLOGY, 2003, 19 :469-491
[6]   Dynamic concentration of motors in microtubule arrays [J].
Nédélec, F ;
Surrey, T ;
Maggs, AC .
PHYSICAL REVIEW LETTERS, 2001, 86 (14) :3192-3195
[7]   Dynamics and spatial organization of endosomes in mammalian cells [J].
Pangarkar, C ;
Dinh, AT ;
Mitragotri, S .
PHYSICAL REVIEW LETTERS, 2005, 95 (15)
[8]   Switching between microtubule- and actin-based transport systems in melanophores is controlled by cAMP levels [J].
Rodionov, V ;
Yi, J ;
Kashina, A ;
Oladipo, A ;
Gross, SP .
CURRENT BIOLOGY, 2003, 13 (21) :1837-1847
[9]   Peroxisomal motility and interaction with microtubules [J].
Schrader, M ;
Thiemann, M ;
Fahimi, HD .
MICROSCOPY RESEARCH AND TECHNIQUE, 2003, 61 (02) :171-178
[10]   Visualization of vesicle transport along and between distinct pathways in neurites of living cells [J].
Schütz, GJ ;
Axmann, M ;
Freudenthaler, S ;
Schindler, H ;
Kandror, K ;
Roder, JC ;
Jeromin, A .
MICROSCOPY RESEARCH AND TECHNIQUE, 2004, 63 (03) :159-167