Stress fiber anisotropy contributes to force-mode dependent chromatin stretching and gene upregulation in living cells.
Stress fiber anisotropy contributes to force-mode dependent chromatin stretching and gene upregulation in living cells.
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应力纤维各向异性有助于活细胞中力模式依赖性染色质拉伸和基因上调
DOI:
10.1038/s41467-020-18584-5
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发表时间:
2020-09-29
影响因子:
16.6
通讯作者:
Wang N
中科院分区:
文献类型:
--
作者:
Wei F;Xu X;Zhang C;Liao Y;Ji B;Wang N
Living cells and tissues experience various complex modes of forces that are important in physiology and disease. However, how different force modes impact gene expression is elusive. Here we apply local forces of different modes via a magnetic bead bound to the integrins on a cell and quantified cell stiffness, chromatin deformation, andDHFR(dihydrofolate reductase) gene transcription. In-plane stresses result in lower cell stiffness than out-of-plane stresses that lead to bead rolling along the cell long axis (i.e., alignment of actin stress fibers) or at different angles (90° or 45°). However, chromatin stretching and ensuingDHFRgene upregulation by the in-plane mode are similar to those induced by the 45° stress mode. Disrupting stress fibers abolishes differences in cell stiffness, chromatin stretching, andDHFRgene upregulation under different force modes and inhibiting myosin II decreases cell stiffness, chromatin deformation, and gene upregulation. Theoretical modeling using discrete anisotropic stress fibers recapitulates experimental results and reveals underlying mechanisms of force-mode dependence. Our findings suggest that forces impact biological responses of living cells such as gene transcription via previously underappreciated means.
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影响因子:
3.4
作者:
Kong, Dong;Ji, Baohua;Dai, Lanhong
通讯作者:
Dai, Lanhong
DOI:
10.1083/jcb.201001149
发表时间:
2010-06-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
le Duc Q;Shi Q;Blonk I;Sonnenberg A;Wang N;Leckband D;de Rooij J
通讯作者:
de Rooij J
DOI:
10.1073/pnas.0711704105
发表时间:
2008-05-06
影响因子:
11.1
作者:
Na, Sungsoo;Collin, Olivier;Wang, Ning
通讯作者:
Wang, Ning
影响因子:
15.9
作者:
DAVIES, PF;ROBOTEWSKYJ, A;GRIEM, ML
通讯作者:
GRIEM, ML
影响因子:
3.4
作者:
Guz, Nataliia;Dokukin, Maxim;Sokolov, Igor
通讯作者:
Sokolov, Igor