The use of markers for correlative light electron microscopy

E Brown, P Verkade

Research output: Contribution to journalArticle (Academic Journal)

37 Citations (Scopus)

Abstract

Bioimaging: the visualisation, localisation and tracking of movement of specific molecules in cells using microscopy has become an increasing field of interest within life science research. For this, the availability of fluorescent and electron-dense markers for light and electron microscopy, respectively, is an essential tool to attach to the molecules of interest. In recent years, there has been an increasing effort to combine light and electron microscopy in a single experiment. Such correlative light electron microscopy (CLEM) experiments thus rely on using markers that are both fluorescent and electron dense. Unfortunately, there are very few markers that possess both these properties. Markers for light microscopy such as green fluorescent protein are generally not directly visible in the electron microscopy and vice versa for gold particles. Hence, there has been an intensive search for markers that are directly visible both in the light microscope and in the electron microscope. Here we discuss some of the strategies and pitfalls that are associated with the use of CLEM markers, which might serve as a “warning” that new probes should be extensively tested before use. We focus on the use of CLEM markers for the study of intracellular transport and specifically endocytosis. Electronic supplementary material The online version of this article (doi:10.1007/s00709-010-0165-1) contains supplementary material, which is available to authorized users.
Original languageEnglish
Pages (from-to)91 - 97
Number of pages7
JournalProtoplasma
Volume244 (1-4)
DOIs
Publication statusPublished - Aug 2010

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