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Photoswitchable dynasore analogs to control endocytosis with light

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The spatiotemporal control of cellular dynamic processes has great fundamental interest but lacks versatile molecular tools. Dynamin is a key protein in endocytosis and an appealing target to manipulate cell trafficking using patterns of light. We have developed the first photoswitchable small-molecule inhibitors of endocytosis (dynazos), by a stepwise design of the photochromic and pharmacological properties of dynasore, a dynamin inhibitor. We have characterized their photochromism with UV-visible and transient absorption spectroscopy and their biological activity using fluorescence microscopies and flow cytometry. Dynazos are water-soluble, cell permeable, and photostable, and enable fast, single- wavelength photoswitchable inhibition of clathrin-mediated endocytosis at micromolar concentration.

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CAMARERO, Núria, et al. Photoswitchable dynasore analogs to control endocytosis with light. Chemical Science. 2020. Vol. 11, num. 8981-8988. ISSN 2041-6520. [consulted: 8 of September of 2026]. Available at: https://hdl.handle.net/2445/173364

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