A fluorogenic probe for β-galactosidase activity imaging in living cells.

TitleA fluorogenic probe for β-galactosidase activity imaging in living cells.
Publication TypeJournal Article
Year of Publication2013
AuthorsHan J, Han MShin, Tung C-H
JournalMol Biosyst
Volume9
Issue12
Pagination3001-8
Date Published2013 Dec
ISSN1742-2051
Keywordsbeta-Galactosidase, Carbocyanines, Cell Line, Tumor, Culture Media, Cytological Techniques, Escherichia coli Proteins, Fluorescent Dyes, Humans, Indoles, Microscopy, Fluorescence
Abstract

A cell permeable fluorescence turn-on probe, AcGQCy7, was developed to image β-galactosidase activity in living cells. Once internalized by β-galactosidase-expressing cells, the probe was hydrolyzed into a highly fluorescent molecule, and the fluorescent signal was retained in mitochondria for several days. This resulted in a long-lasting and strong β-galactosidase-dependent intracellular fluorescent signal with little background fluorescence in the culture media.

DOI10.1039/c3mb70269c
Alternate JournalMol Biosyst
PubMed ID24056749
PubMed Central IDPMC3836597
Grant ListR01 CA135312 / CA / NCI NIH HHS / United States
P30 CA016672 / CA / NCI NIH HHS / United States
CA135312 / CA / NCI NIH HHS / United States
GM 094880 / GM / NIGMS NIH HHS / United States
R01 GM094880 / GM / NIGMS NIH HHS / United States
Related Institute: 
Molecular Imaging Innovations Institute (MI3)

Weill Cornell Medicine
Department of Radiology
525 East 68th Street New York, NY 10065