Live-cell super-resolved PAINT imaging of piconewton cellular traction forces.
Live-cell super-resolved PAINT imaging of piconewton cellular traction forces.
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DOI:
10.1038/s41592-020-0929-2
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发表时间:
2020-10
期刊:
影响因子:
48
通讯作者:
Salaita K
中科院分区:
文献类型:
--
作者:
Brockman JM;Su H;Blanchard AT;Duan Y;Meyer T;Quach ME;Glazier R;Bazrafshan A;Bender RL;Kellner AV;Ogasawara H;Ma R;Schueder F;Petrich BG;Jungmann R;Li R;Mattheyses AL;Ke Y;Salaita K
Despite the vital role of mechanical forces in biology, no technique has been reported to image cellular force with sub-100 nm resolution. Here, we present tension-PAINT (tPAINT), integrating molecular tension probes with the DNA-PAINT technique to map pN mechanical events with ~25 nm resolution. To perform live-cell dynamic tension imaging, we engineered reversible probes with a cryptic docking site revealed only when the probe experiences forces exceeding a defined mechanical threshold (~7–21 pN). Additionally, we report a second type of irreversible tPAINT probe that exposes its cryptic docking permanently and thus integrates force history over time, offering improved spatial resolution in exchange for temporal dynamics. We applied both types of tPAINT probes to map integrin receptor forces in live human platelets and mouse embryonic fibroblasts. Importantly, tPAINT revealed a link between platelet forces at the leading edge of cells and the dynamic actin-rich ring nucleated by the Arp2/3 complex.
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影响因子:
48
作者:
Hua, Boyang;Han, Kyu Young;Zhou, Ruobo;Kim, Hajin;Shi, Xinghua;Abeysirigunawardena, Sanjaya C.;Jain, Ankur;Singh, Digvijay;Aggarwal, Vasudha;Woodson, Sarah A.;Ha, Taekjip
通讯作者:
Ha, Taekjip
影响因子:
48
作者:
Brockman JM;Blanchard AT;Pui-Yan V Ma;Derricotte WD;Zhang Y;Fay ME;Lam WA;Evangelista FA;Mattheyses AL;Salaita K
通讯作者:
Salaita K
影响因子:
38.3
作者:
通讯作者:
--
DOI:
10.1083/jcb.200810002
发表时间:
2009-06-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kong F;García AJ;Mould AP;Humphries MJ;Zhu C
通讯作者:
Zhu C
影响因子:
15
作者:
Liu, Yang;Yehl, Kevin;Narui, Yoshie;Salaita, Khalid
通讯作者:
Salaita, Khalid