SRRF: Universal live-cell super-resolution microscopy.

SRRF: Universal live-cell super-resolution microscopy.
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DOI:
10.1016/j.biocel.2018.05.014
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发表时间:
2018-08
期刊:
The international journal of biochemistry & cell biology
影响因子:
--
通讯作者:
Henriques R
Henriques R
中科院分区:
其他
文献类型:
--
作者:
Culley S;Tosheva KL;Matos Pereira P;Henriques R

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SRRF是一种纯分析的超分辨率显微镜方法,可作为ImageJ的开源插件使用。SRRF与任何荧光团兼容,包括传统的荧光蛋白,如GFP。SRRF可用于从最常见的荧光显微镜中检索超分辨率信息。超分辨率显微镜技术突破了传统光学显微镜的衍射极限,实现了接近几十纳米的分辨率。这种技术的主要优点是,它们提供接近电子显微镜的分辨率,同时保持光学显微镜的优点,如广泛的高特异性分子标记,简单的样品制备和活细胞兼容性。尽管如此,到目前为止,超分辨率显微镜在动态活体样本上的应用还很有限,而且往往需要专门的、复杂的硬件。在这里,我们展示了一种新的分析方法,超分辨率径向波动(SRRF),能够使活细胞超分辨率显微镜更广泛的研究人员访问。我们展示了它对使用商用共聚焦以及基于激光和led的宽视场显微镜表达GFP的活样品的适用性,后者以最小的光漂白实现了长期的延时成像。
SRRF is a purely analytical super-resolution microscopy approach available as an open-source easy-to-use plugin for ImageJ. SRRF is compatible with any fluorophore, including conventional fluorescent proteins such as GFP. SRRF can be used to retrieve super-resolution information from most common fluorescence microscopes. Super-resolution microscopy techniques break the diffraction limit of conventional optical microscopy to achieve resolutions approaching tens of nanometres. The major advantage of such techniques is that they provide resolutions close to those obtainable with electron microscopy while maintaining the benefits of light microscopy such as a wide palette of high specificity molecular labels, straightforward sample preparation and live-cell compatibility. Despite this, the application of super-resolution microscopy to dynamic, living samples has thus far been limited and often requires specialised, complex hardware. Here we demonstrate how a novel analytical approach, Super-Resolution Radial Fluctuations (SRRF), is able to make live-cell super-resolution microscopy accessible to a wider range of researchers. We show its applicability to live samples expressing GFP using commercial confocal as well as laser- and LED-based widefield microscopes, with the latter achieving long-term timelapse imaging with minimal photobleaching.
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