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Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes

Fluorescent probes that change their spectral properties upon binding to small biomolecules, ions, or changes in the membrane potential (V(m)) are invaluable tools to study cellular signaling pathways. Here, we introduce a novel technique for simultaneous recording of multiple probes at millisecond...

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Autores principales: Kierzek, Michelina, Deal, Parker E, Miller, Evan W, Mukherjee, Shatanik, Wachten, Dagmar, Baumann, Arnd, Kaupp, U Benjamin, Strünker, Timo, Brenker, Christoph
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8700268/
https://www.ncbi.nlm.nih.gov/pubmed/34859780
http://dx.doi.org/10.7554/eLife.63129
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author Kierzek, Michelina
Deal, Parker E
Miller, Evan W
Mukherjee, Shatanik
Wachten, Dagmar
Baumann, Arnd
Kaupp, U Benjamin
Strünker, Timo
Brenker, Christoph
author_facet Kierzek, Michelina
Deal, Parker E
Miller, Evan W
Mukherjee, Shatanik
Wachten, Dagmar
Baumann, Arnd
Kaupp, U Benjamin
Strünker, Timo
Brenker, Christoph
author_sort Kierzek, Michelina
collection PubMed
description Fluorescent probes that change their spectral properties upon binding to small biomolecules, ions, or changes in the membrane potential (V(m)) are invaluable tools to study cellular signaling pathways. Here, we introduce a novel technique for simultaneous recording of multiple probes at millisecond time resolution: frequency- and spectrally-tuned multiplexing (FAST(M)). Different from present multiplexing approaches, FAST(M) uses phase-sensitive signal detection, which renders various combinations of common probes for V(m) and ions accessible for multiplexing. Using kinetic stopped-flow fluorimetry, we show that FAST(M) allows simultaneous recording of rapid changes in Ca(2+), pH, Na(+), and V(m) with high sensitivity and minimal crosstalk. FAST(M) is also suited for multiplexing using single-cell microscopy and genetically encoded FRET biosensors. Moreover, FAST(M) is compatible with optochemical tools to study signaling using light. Finally, we show that the exceptional time resolution of FAST(M) also allows resolving rapid chemical reactions. Altogether, FAST(M) opens new opportunities for interrogating cellular signaling.
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spelling pubmed-87002682022-01-04 Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes Kierzek, Michelina Deal, Parker E Miller, Evan W Mukherjee, Shatanik Wachten, Dagmar Baumann, Arnd Kaupp, U Benjamin Strünker, Timo Brenker, Christoph eLife Cell Biology Fluorescent probes that change their spectral properties upon binding to small biomolecules, ions, or changes in the membrane potential (V(m)) are invaluable tools to study cellular signaling pathways. Here, we introduce a novel technique for simultaneous recording of multiple probes at millisecond time resolution: frequency- and spectrally-tuned multiplexing (FAST(M)). Different from present multiplexing approaches, FAST(M) uses phase-sensitive signal detection, which renders various combinations of common probes for V(m) and ions accessible for multiplexing. Using kinetic stopped-flow fluorimetry, we show that FAST(M) allows simultaneous recording of rapid changes in Ca(2+), pH, Na(+), and V(m) with high sensitivity and minimal crosstalk. FAST(M) is also suited for multiplexing using single-cell microscopy and genetically encoded FRET biosensors. Moreover, FAST(M) is compatible with optochemical tools to study signaling using light. Finally, we show that the exceptional time resolution of FAST(M) also allows resolving rapid chemical reactions. Altogether, FAST(M) opens new opportunities for interrogating cellular signaling. eLife Sciences Publications, Ltd 2021-12-03 /pmc/articles/PMC8700268/ /pubmed/34859780 http://dx.doi.org/10.7554/eLife.63129 Text en © 2021, Kierzek et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Cell Biology
Kierzek, Michelina
Deal, Parker E
Miller, Evan W
Mukherjee, Shatanik
Wachten, Dagmar
Baumann, Arnd
Kaupp, U Benjamin
Strünker, Timo
Brenker, Christoph
Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title_full Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title_fullStr Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title_full_unstemmed Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title_short Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
title_sort simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes
topic Cell Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8700268/
https://www.ncbi.nlm.nih.gov/pubmed/34859780
http://dx.doi.org/10.7554/eLife.63129
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