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Roughing up Smoothened: chemical modulators of Hedgehog signaling

Published by National Institutes of Health | U.S. Department of Health & Human Services | Metadata Last Checked: September 06, 2025 | Last Modified: 2025-09-06
Small-molecule antagonists of Hedgehog-pathway signaling, such as cyclopamine, have been known for some time. Now, small-molecule agonists of the Hedgehog pathway have also been identified. The finding that both antagonists and agonists target the protein Smoothened supports the emerging hypothesis that Smoothened may be regulated by endogenous small molecules.

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