Cited by 95Protein Degradation and InhibitorsCancer-related Molecular PathwaysUbiquitin and proteasome pathways

Homo-PROTAC mediated suicide of MDM2 to treat non-small cell lung cancer

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He, Shipeng, Ma, Junhui, Fang, Yuxin, Liu, Ying, Wu, Shanchao, Dong, Guoqiang, Wang, Wei, Sheng, Chunquan·2021·Acta Pharmaceutica Sinica B

Abstract

The dose-related adverse effects of MDM2‒P53 inhibitors have caused significant concern in the development of clinical safe anticancer agents. Herein we report an unprecedented homo-PROTAC strategy for more effective disruption of MDM2‒P53 interaction. The design concept is inspired by the capacity of sub-stoichiometric catalytic PROTACs enabling to degrade an unwanted protein and the dual functions of MDM2 as an E3 ubiquitin ligase and a binding protein with tumor suppressor P53. The new homo-PROTACs are designed to induce self-degradation of MDM2. The results of the investigation have shown that PROTAC 11a efficiently dimerizes MDM2 with highly competitive binding activity and induces proteasome-dependent self-degradation of MDM2 in A549 non-small cell lung cancer cells. Furthermore, markedly, enantiomer 11a-1 exhibits potent in vivo antitumor activity in A549 xenograft nude mouse model, which is the first example of homo-PROTAC with in vivo therapeutic potency. This study demonstrates the potential of the homo-PROTAC as an alternative chemical tool for tumorigenic MDM2 knockdown, which could be developed into a safe therapy for cancer treatment.

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Crossref · 10.1016/j.apsb.2020.11.022

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  • Compound 211 is a PROTAC molecule targeting MDM2 degradation based on MDM2 inhibitor Nutlin-3, effectively dimerizes MDM2 and induces its degradation in A549 NSCLC cells.

    “Concurrently, Sheng’s team designed and synthesized a PROTAC molecule, compound 211, targeting MDM2 degradation (Table 4). This molecule was based on the MDM2 inhibitor Nutlin-3. Experimental results revealed that PROTAC 211 effectively dimerized MDM2 with high binding activity and induced its degradation in A549 NSCLC cells.”

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  1. [26]Flanagan J.J. Qian Y. Gough S.M. Andreoli M. Bookbinder M. Cadelina G. ARV-471, an oral estrogen receptor PROTAC degrader for breast cancer. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR Cancer Res 79 2019 (4 Suppl):Abstract nr P5-04-18

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Authors
He, S., Ma, J., Fang, Y., Liu, Y., Wu, S., Dong, G., Wang, W., & Sheng, C.
Affiliations
  • Shanghai University (CN)
  • Second Military Medical University (CN)
  • University of Arizona (US)
  • Tongji University (CN)
Corresponding author
  • Dong, Guoqiang
  • Wang, Wei
  • Sheng, Chunquan
Venue
Acta Pharmaceutica Sinica B
Publisher
Elsevier BV
Published
2021-06
Volume
11
Issue
6
Pages
1617-1628
ISSN
2211-3835 (ISSN-L)
OpenAlex
W3110273518
Cited by
91
References
47
Citations by year
2026: 11 · 2025: 20 · 2024: 17 · 2023: 18 · 2022: 22 · 2021: 3
FWCI
3.65
Type
journal article
Language
en
Open access
Locations
  • Acta Pharmaceutica Sinica B (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (21738002, 21807113, 82030105)
  • Shanghai Municipal Education Commission (2019-01-07-00-07-E00073)
  • National Key Research and Development Program of China (2020YFA0509100)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
MDM2, p53, non-small cell lung cancer, E3 ubiquitin ligase, proteasomal degradation, enantiomers, A549 cells, xenograft antitumor activity, p53-MDM2 interaction

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