A sterol analog inhibits hedgehog pathway by blocking cholesterylation of smoothened

Copyright © 2024 Elsevier Ltd. All rights reserved..

The hedgehog (Hh) signaling pathway has long been a hotspot for anti-cancer drug development due to its important role in cell proliferation and tumorigenesis. However, most clinically available Hh pathway inhibitors target the seven-transmembrane region (7TM) of smoothened (SMO), and the acquired drug resistance is an urgent problem in SMO inhibitory therapy. Here, we identify a sterol analog Q29 and show that it can inhibit the Hh pathway through binding to the cysteine-rich domain (CRD) of SMO and blocking its cholesterylation. Q29 suppresses Hh signaling-dependent cell proliferation and arrests Hh-dependent medulloblastoma growth. Q29 exhibits an additive inhibitory effect on medulloblastoma with vismodegib, a clinically used SMO-7TM inhibitor for treating basal cell carcinoma (BCC). Importantly, Q29 overcomes resistance caused by SMO mutants against SMO-7TM inhibitors and inhibits the activity of SMO oncogenic variants. Our work demonstrates that the SMO-CRD inhibitor can be a new way to treat Hh pathway-driven cancers.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Cell chemical biology - (2024) vom: 28. Feb.

Sprache:

Englisch

Beteiligte Personen:

Liu, Yuan-Bin [VerfasserIn]
He, Li-Ming [VerfasserIn]
Sun, Ming [VerfasserIn]
Luo, Wen-Jun [VerfasserIn]
Lin, Zi-Cun [VerfasserIn]
Qiu, Zhi-Ping [VerfasserIn]
Zhang, Yu-Liang [VerfasserIn]
Hu, Ao [VerfasserIn]
Luo, Jie [VerfasserIn]
Qiu, Wen-Wei [VerfasserIn]
Song, Bao-Liang [VerfasserIn]

Links:

Volltext

Themen:

Basal cell carcinomas
Cholesterylation
Cysteine-rich domain
Hedgehog
Journal Article
Medulloblastoma
Smoothened
Vismodegib

Anmerkungen:

Date Revised 05.03.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1016/j.chembiol.2024.02.002

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369325427