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Citation
Bardet, P.L., Kolahgar, G.I., Mynett, A., Miguel-Aliaga, I., Briscoe, J., Meier, P., Vincent, J.P. (2008). A fluorescent reporter of caspase activity for live imaging.  Proc. Natl. Acad. Sci. U.S.A. 105(37): 13901--13905.
FlyBase ID
FBrf0205998
Publication Type
Research paper
Abstract

There is a growing interest in the mechanisms that control the apoptosis cascade during development and adult life. To investigate the regulatory events that trigger apoptosis in whole tissues, we have devised a genetically encoded caspase sensor that can be detected in live and fixed tissue by standard confocal microscopy. The sensor comprises two fluorophores, mRFP, monomeric red fluorescent protein (mRFP) and enhanced green fluorescent protein (eGFP), that are linked by an efficient and specific caspase-sensitive site. Upon caspase activation, the sensor is cleaved and eGFP translocates to the nucleus, leaving mRFP at membranes. This is detected before other markers of apoptosis, including anti-cleaved caspase 3 immunoreactivity. Moreover, the sensor does not perturb normal developmental apoptosis and is specific, as cleavage does not occur in Drosophila embryos that are unable to activate the apoptotic cascade. Importantly, dying cells can be recognized in live embryos, thus opening the way for in vivo imaging. As expected from the high conservation of caspases, it is also cleaved in dying cells of chick embryos. It is therefore likely to be generally useful to track the spatiotemporal pattern of caspase activity in a variety of species.

PubMed ID
PubMed Central ID
PMC2544551 (PMC) (EuropePMC)
Related Publication(s)
Personal communication to FlyBase

UAS-Apoliner.
Vincent, 2010.9.7, UAS-Apoliner. [FBrf0211799]

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Secondary IDs
    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Proc. Natl. Acad. Sci. U.S.A.
    Title
    Proceedings of the National Academy of Sciences of the United States of America
    Publication Year
    1915-
    ISBN/ISSN
    0027-8424
    Data From Reference
    Aberrations (1)
    Alleles (6)
    Genes (7)
    Cell Lines (1)
    Natural transposons (1)
    Insertions (3)
    Experimental Tools (5)
    Transgenic Constructs (4)