Inhibiting Hedgehog: An Update on Pharmacological Compounds and Targeting Strategies

Important steps in embryonic development are governed by the Hedgehog (Hh) signaling pathway, an evolutionary conserved signal transduction cascade. However, Hh activity not only is crucial during embryo formation but also is involved in adult tissue repair and in several malignancies. Particularly...

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Published in:Journal of medicinal chemistry 2019-09, Vol.62 (18), p.8392-8411
Main Authors: Galperin, Ilya, Dempwolff, Lukas, Diederich, Wibke E, Lauth, Matthias
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Language:English
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description Important steps in embryonic development are governed by the Hedgehog (Hh) signaling pathway, an evolutionary conserved signal transduction cascade. However, Hh activity not only is crucial during embryo formation but also is involved in adult tissue repair and in several malignancies. Particularly due to its link to cancer, small molecule Hh pathway inhibitors have been developed and the first compounds have been approved for use in Hh-driven basal cell carcinoma. Almost all advanced Hh inhibitors target the critical signaling component Smoothened (SMO), but preclinical research has identified additional compounds that can block the Hh pathway along its entire signaling cascade, which, in light of emerging drug resistance occurring with SMO inhibitors, is of high importance. Herein we give an overview on currently known Hh pathway inhibitors, delineating their respective strengths and weaknesses and describing potential drug targeting strategies to interfere with Hh signaling in different cancer settings.
doi_str_mv 10.1021/acs.jmedchem.9b00188
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title Inhibiting Hedgehog: An Update on Pharmacological Compounds and Targeting Strategies
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