Phenotyping Reveals Targets of a Pseudo‐Natural‐Product Autophagy Inhibitor

Abstract: Pseudo‐natural‐product (NP) design combines natural product fragments to provide unprecedented NP‐inspired compounds not accessible by biosynthesis, but endowed with biological relevance. Since the bioactivity of pseudo‐NPs may be unprecedented or unexpected, they are best evaluated in target agnostic cell‐based assays monitoring entire cellular programs or complex phenotypes. Here, the Cinchona alkaloid scaffold was merged with the indole ring system to synthesize indocinchona alkaloids by Pd‐catalyzed annulation. Exploration of indocinchona alkaloid bioactivities in phenotypic assays revealed a novel class of azaindole‐containing autophagy inhibitors, the azaquindoles. Subsequent characterization of the most potent compound, azaquindole‐1, in the morphological cell painting assay, guided target identification efforts. In contrast to the parent Cinchona alkaloids, azaquindoles selectively inhibit starvation‐ and rapamycin‐induced autophagy by targeting the lipid kinase VPS34.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Phenotyping Reveals Targets of a Pseudo‐Natural‐Product Autophagy Inhibitor ; volume:59 ; number:30 ; year:2020 ; pages:12470-12476 ; extent:7
Angewandte Chemie / International edition. International edition ; 59, Heft 30 (2020), 12470-12476 (gesamt 7)

Creator
Foley, Daniel J.
Zinken, Sarah
Corkery, Dale
Laraia, Luca
Pahl, Axel
Wu, Yaowen
Waldmann, Herbert

DOI
10.1002/anie.202000364
URN
urn:nbn:de:101:1-2022062006382198746957
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:23 AM CEST

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