Combined AFM and super-resolution localisation microscopy: Investigating the structure and dynamics of podosomes.
Combined AFM and super-resolution localisation microscopy: Investigating the structure and dynamics of podosomes.
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DOI:
10.1016/j.ejcb.2020.151106
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发表时间:
2020-09
影响因子:
6.6
通讯作者:
Cox S
中科院分区:
文献类型:
--
作者:
Hirvonen LM;Marsh RJ;Jones GE;Cox S
Podosomes are mechanosensitive attachment/invasion structures that form on the matrix-adhesion interface of cells and protrude into the extracellular matrix to probe and remodel. Despite their central role in many cellular processes, their exact molecular structure and function remain only partially understood. We review recent progress in molecular scale imaging of podosome architecture, including our newly developed localisation microscopy technique termed HAWK which enables artefact-free live-cell super-resolution microscopy of podosome ring proteins, and report new results on combining fluorescence localisation microscopy (STORM/PALM) and atomic force microscopy (AFM) on one setup, where localisation microscopy provides the location and dynamics of fluorescently labelled podosome components, while the spatial variation of stiffness is mapped with AFM. For two-colour localisation microscopy we combine iFluor-647, which has previously been shown to eliminate the need to change buffer between imaging modes, with the photoswitchable protein mEOS3.2, which also enables live cell imaging.
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影响因子:
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通讯作者:
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