Philos Trans R Soc Lond B Biol Sci. 2008 Jun 27;363(1500):2143-51.

Visualization of growth signal transduction cascades in living cells with genetically encoded probes based on Förster resonance energy transfer.

Aoki K, Kiyokawa E, Nakamura T, Matsuda M.

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Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.

Abstract

Fluorescence probes based on the principle of Förster resonance energy transfer (FRET) have shed new light on our understanding of signal transduction cascades. Among them, unimolecular FRET probes containing fluorescence proteins are rapidly increasing in number because these genetically encoded probes can be easily loaded into living cells and allow simple acquisition of FRET images. We have developed probes for small GTPases, tyrosine kinases, serine-threonine kinases and phosphoinositides. Images obtained with these probes have revealed that membrane protrusions such as nascent lamellipodia or neurites provide an active signalling platform in the growth factor-stimulated cells.

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PMCID:: PMC2610186

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