A click cage: organelle-specific uncaging of lipid messengers
Lipid messengers exert their function on short time scales at distinct subcellular locations, yet most experimental approaches for perturbing their levels trigger cell-wide concentration changes. Herein, we report on a coumarin-based photocaging group that can be modified with organelle-targeting mo...
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| Autori principali: | , |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
26 July 2018
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| In: |
Angewandte Chemie. International edition
Year: 2018, Volume: 57, Fascicolo: 40, Pages: 13339-13343 |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201807497 |
| Accesso online: | Verlag, Volltext: https://doi.org/10.1002/anie.201807497 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201807497 
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| Note sull'autore: | Nicolai Wagner, Milena Stephan, Doris Höglinger, André Nadler |
| Riassunto: | Lipid messengers exert their function on short time scales at distinct subcellular locations, yet most experimental approaches for perturbing their levels trigger cell-wide concentration changes. Herein, we report on a coumarin-based photocaging group that can be modified with organelle-targeting moieties by click chemistry and thus enables photorelease of lipid messengers in distinct organelles. We show that caged arachidonic acid and sphingosine derivatives can be selectively delivered to mitochondria, the ER, lysosomes, and the plasma membrane. By comparing the cellular calcium transients induced by localized uncaging of arachidonic acid and sphingosine, we show that the precise intracellular localization of the released second messenger is crucial for the signaling outcome. Ultimately, we anticipate that this new class of caged compounds will greatly facilitate the study of cellular processes on the organelle level. |
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| Descrizione del documento: | Gesehen am 16.04.2019 |
| Descrizione fisica: | Online Resource |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201807497 |