Cited by 174Protein Degradation and InhibitorsMonoclonal and Polyclonal Antibodies ResearchChemical Synthesis and Analysis

Antibody-Mediated Delivery of Chimeric BRD4 Degraders. Part 2: Improvement of In Vitro Antiproliferation Activity and In Vivo Antitumor Efficacy

Dragovich, Peter S., Pillow, Thomas H., Blake, Robert A., Sadowsky, Jack D., Adaligil, Emel, Adhikari, Pragya, Chen, Jinhua, Corr, Nicholas +29 more·2021·Journal of Medicinal Chemistry

Abstract

Heterobifunctional compounds that direct the ubiquitination of intracellular proteins in a targeted manner via co-opted ubiquitin ligases have enormous potential to transform the field of medicinal chemistry. These chimeric molecules, often termed proteolysis-targeting chimeras (PROTACs) in the chemical literature, enable the controlled degradation of specific proteins via their direction to the cellular proteasome. In this report, we describe the second phase of our research focused on exploring antibody-drug conjugates (ADCs), which incorporate BRD4-targeting chimeric degrader entities. We employ a new BRD4-binding fragment in the construction of the chimeric ADC payloads that is significantly more potent than the corresponding entity utilized in our initial studies. The resulting BRD4-degrader antibody conjugates exhibit potent and antigen-dependent BRD4 degradation and antiproliferation activities in cell-based experiments. Multiple ADCs bearing chimeric BRD4-degrader payloads also exhibit strong, antigen-dependent antitumor efficacy in mouse xenograft assessments that employ several different tumor models.

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Crossref · 10.1021/acs.jmedchem.0c01846

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  • Dragovic et al. successfully demonstrated tumour-specific targeting in two different cancer types with antibody-drug conjugates involving VHL-BRD4 PROTACs.

    “Dragovic et al.160–162 at Genentech have pushed this modality forward and successfully demonstrated tumour-specific targeting in two different cancer types with ADCs involving VHL–BRD4 PROTACs.”

    From PROTAC targeted protein degraders: the past is prologue (2022) · cites this paper as [161]

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Authors
Dragovich, P. S., Pillow, T. H., Blake, R. A., Sadowsky, J. D., Adaligil, E., Adhikari, P., Chen, J., Corr, N., dela Cruz-Chuh, J., Del Rosario, G., Fullerton, A., Hartman, S. J., Jiang, F., Kaufman, S., Kleinheinz, T., Kozak, K. R., Liu, L., Lu, Y., Mulvihill, M. M., Murray, J. M., O’Donohue, A., Rowntree, R. K., Sawyer, W. S., Staben, L. R., Wai, J., Wang, J., Wei, B., Wei, W., Xu, Z., Yao, H., Yu, S.-F., Zhang, D., Zhang, H., Zhang, S., Zhao, Y., Zhou, H., & Zhu, X.
Affiliations
  • Genentech (US)
  • WuXi AppTec (China) (CN)
  • Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
  • Viva Biotech (China) (CN)
Corresponding author
Dragovich, Peter S.
Venue
Journal of Medicinal Chemistry
Published
2021-02-17
Volume
64
Issue
5
Pages
2576-2607
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W3130648111
Cited by
174
References
84
Citations by year
2026: 28 · 2025: 27 · 2024: 39 · 2023: 33 · 2022: 30 · 2021: 17
FWCI
9.57
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
PROTACs, antibody-drug conjugates, BRD4, ubiquitination, proteasome, antitumor efficacy, tumor xenografts
MeSH terms
Bromodomain Containing Proteins, Animals, Antibodies, Monoclonal, Antigens, Neoplasm, Antineoplastic Agents, Dipeptides, Female, Heterocyclic Compounds, 3-Ring, Humans, Neoplasms, Oxidoreductases, Transcription Factors, Mice, SCID, Immunoconjugates, Cell Cycle Proteins, Xenograft Model Antitumor Assays, Cell Line, Tumor, Cell Proliferation, Mice, Von Hippel-Lindau Tumor Suppressor Protein, Proteolysis

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