A DNA-based molecular probe for optically reporting cellular traction forces.

A DNA-based molecular probe for optically reporting cellular traction forces.
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DOI:
10.1038/nmeth.3145
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发表时间:
2014-12
期刊:
影响因子:
48
通讯作者:
Chen, Christopher S.
Chen, Christopher S.
中科院分区:
生物学1区
文献类型:
--
作者:
Blakely, Brandon L.;Dumelin, Christoph E.;Trappmann, Britta;McGregor, Lynn M.;Choi, Colin K.;Anthony, Peter C.;Duesterberg, Van K.;Baker, Brendon M.;Block, Steven M.;Liu, David R.;Chen, Christopher S.

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We developed molecular tension probes (TPs) that report traction forces of adherent cells with high spatial resolution, can be linked to virtually any surface, and obviate monitoring deformations of elastic substrates. TPs consist of DNA hairpins conjugated to fluorophore-quencher pairs that unfold and fluoresce when subjected to specific forces. We applied TPs to reveal that cellular traction forces are heterogeneous within focal adhesions and localized at their distal edges.
在生活/非生存界面处的张力传感纳米颗粒用于机械成像。
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