Cited by 155Protein Degradation and InhibitorsSynthesis and biological activityUbiquitin and proteasome pathways

Discovery of Wogonin-based PROTACs against CDK9 and capable of achieving antitumor activity

Bian, Jinlei, Ren, Jie, Li, Yongren, Wang, Jubo, Xu, Xi, Feng, Yifan, Tang, Hui, Wang, Yajing +1 more·2018·Bioorganic Chemistry

Abstract

Wogonin is a natural product isolated from the Scutellaria baicalensis and has been proved to be a potent and selective inhibitor of CDK9. Using this scaffold, we designed and synthesized a series of proteolysis targeting chimeras (PROTACs) targeting CDK9 by recruiting ubiquitin E3 ligase cereblon (CRBN). For constructing diverse Wogonin-based PROTACs, a "click chemistry" approach was employed for the synthesis of CDK9-targeting PROTACs. The results of western blotting assays showed that compounds containing triazole group in the linker could selectively downregulate the intracellular CDK9 level. Among these compounds, 11c could selectively degrade CDK9 in a concentration-dependent manner. In addition, the application of the proteasome inhibitor MG132 and CRBN siRNA silencing confirmed that 11c could promote the proteasome-dependent and CRBN-dependent degradation. Consistent with the degradation of the CDK9 protein, 11c selectively inhibits proliferation of CDK9-overexpressed cancer cells. Thus, our Wogonin-based PROTAC would be an efficient probe that induces the degradation of CDK9.

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Crossref · 10.1016/j.bioorg.2018.08.028

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Authors
Bian, J., Ren, J., Li, Y., Wang, J., Xu, X., Feng, Y., Tang, H., Wang, Y., & Li, Z.
Affiliations
China Pharmaceutical University (CN)
Corresponding author
  • Bian, Jinlei
  • Li, Yongren
  • Wang, Jubo
  • Wang, Yajing
  • Li, Zhiyu
Venue
Bioorganic Chemistry
Publisher
Elsevier BV
Published
2018-12
Volume
81
Pages
373-381
ISSN
0045-2068 (ISSN-L)
OpenAlex
W2888785247
Cited by
140
References
17
Citations by year
2026: 7 · 2025: 19 · 2024: 18 · 2023: 22 · 2022: 20 · 2021: 20 · 2020: 21 · 2019: 13
FWCI
5.16
Type
journal article
Language
en
Open access
closed
Locations
  • Bioorganic Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation (81703347)
  • Natural Science Foundation of Jiangsu Province (BK20170743)
  • Fundamental Research Funds for the Central Universities, China (2632017PY13)
  • R&D of Novel Drugs (J1310032)
  • National Found for Fostering Talents of Basic Science
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and biological activity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
wogonin, PROTACs, CDK9, cereblon, click chemistry, triazole linkers, protein degradation, proteasomal degradation, anticancer activity, Scutellaria baicalensis, natural product scaffolds
MeSH terms
Antineoplastic Agents, Humans, Neoplasms, Peptide Hydrolases, Cyclin-Dependent Kinase 9, Ubiquitin-Protein Ligases, Flavanones, Protein Kinase Inhibitors, Adaptor Proteins, Signal Transducing, Drug Discovery, Click Chemistry, Proteolysis, MCF-7 Cells, Molecular Docking Simulation

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