Green fluorescent protein-based monitoring of endoplasmic reticulum redox poise

Birk, Julia and Ramming, Thomas and Odermatt, Alex and Appenzeller-Herzog, Christian. (2013) Green fluorescent protein-based monitoring of endoplasmic reticulum redox poise. Frontiers in genetics, Vol. 4, art. 108 , 10 S.. p. 108.

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Official URL: http://edoc.unibas.ch/dok/A6194603

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Pathological endoplasmic reticulum (ER) stress is tightly linked to the accumulation of reactive oxidants, which can be both upstream and downstream of ER stress. Accordingly, detrimental intracellular stress signals are amplified through establishment of a vicious cycle. An increasing number of human diseases are characterized by tissue atrophy in response to ER stress and oxidative injury. Experimental monitoring of stress-induced, time-resolved changes in ER reduction-oxidation (redox) states is therefore important. Organelle-specific examination of redox changes has been facilitated by the advent of genetically encoded, fluorescent probes, which can be targeted to different subcellular locations by means of specific amino acid extensions. These probes include redox-sensitive green fluorescent proteins (roGFPs) and the yellow fluorescent protein-based redox biosensor HyPer. In the case of roGFPs, variants with known specificity toward defined redox couples are now available. Here, we review the experimental framework to measure ER redox changes using ER-targeted fluorescent biosensors. Advantages and drawbacks of plate-reader and microscopy-based measurements are discussed, and the power of these techniques demonstrated in the context of selected cell culture models for ER stress.
Faculties and Departments:05 Faculty of Science > Departement Pharmazeutische Wissenschaften > Pharmazie > Molecular and Systems Toxicology (Odermatt)
UniBasel Contributors:Appenzeller, Christian and Odermatt, Alex and Birk, Julia and Ramming, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Frontiers Media
Note:Note: See erratum in vol. 4, art. 255 (2013). -- Publication type according to Uni Basel Research Database: Journal article
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Last Modified:31 Dec 2015 10:54
Deposited On:06 Dec 2013 09:35

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