Cited by 152Protein Degradation and InhibitorsMonoclonal and Polyclonal Antibodies ResearchSynthesis and pharmacology of benzodiazepine derivatives

Antibody-Mediated Delivery of Chimeric BRD4 Degraders. Part 1: Exploration of Antibody Linker, Payload Loading, and Payload Molecular Properties

Dragovich, Peter S., Pillow, Thomas H., Blake, Robert A., Sadowsky, Jack D., Adaligil, Emel, Adhikari, Pragya, Bhakta, Sunil, Blaquiere, Nicole +29 more·2021·Journal of Medicinal Chemistry

Abstract

The biological and medicinal impacts of proteolysis-targeting chimeras (PROTACs) and related chimeric molecules that effect intracellular degradation of target proteins via ubiquitin ligase-mediated ubiquitination continue to grow. However, these chimeric entities are relatively large compounds that often possess molecular characteristics, which may compromise oral bioavailability, solubility, and/or in vivo pharmacokinetic properties. We therefore explored the conjugation of such molecules to monoclonal antibodies using technologies originally developed for cytotoxic payloads so as to provide alternate delivery options for these novel agents. In this report, we describe the first phase of our systematic development of antibody-drug conjugates (ADCs) derived from bromodomain-containing protein 4 (BRD4)-targeting chimeric degrader entities. We demonstrate the antigen-dependent delivery of the degrader payloads to PC3-S1 prostate cancer cells along with related impacts on MYC transcription and intracellular BRD4 levels. These experiments culminate with the identification of one degrader conjugate, which exhibits antigen-dependent antiproliferation effects in LNCaP prostate cancer cells.

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Crossref · 10.1021/acs.jmedchem.0c01845

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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 [162]

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Authors
Dragovich, P. S., Pillow, T. H., Blake, R. A., Sadowsky, J. D., Adaligil, E., Adhikari, P., Bhakta, S., Blaquiere, N., Chen, J., dela Cruz-Chuh, J., Gascoigne, K. E., Hartman, S. J., He, M., Kaufman, S., Kleinheinz, T., Kozak, K. R., Liu, L., Liu, L., Liu, Q., Lu, Y., Meng, F., Mulvihill, M. M., O’Donohue, A., Rowntree, R. K., Staben, L. R., Staben, S. T., Wai, J., Wang, J., Wei, B., Wilson, C., Xin, J., Xu, Z., Yao, H., Zhang, D., Zhang, H., Zhou, H., & Zhu, X.
Affiliations
  • Genentech (US)
  • Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
  • WuXi AppTec (China) (CN)
  • Pharmaron (China) (CN)
Corresponding author
Dragovich, Peter S.
Venue
Journal of Medicinal Chemistry
Published
2021-02-17
Volume
64
Issue
5
Pages
2534-2575
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W3146169114
Cited by
152
References
96
Citations by year
2026: 19 · 2025: 26 · 2024: 37 · 2023: 33 · 2022: 26 · 2021: 11
FWCI
8.70
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
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
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and pharmacology of benzodiazepine derivatives
Keywords
PROTACs, BRD4, antibody-drug conjugates, prostate cancer, MYC transcription, LNCaP cells, antiproliferative activity
MeSH terms
PC-3 Cells, Bromodomain Containing Proteins, Antibodies, Monoclonal, Antigens, Neoplasm, Dipeptides, Heterocyclic Compounds, 3-Ring, Humans, Oxidoreductases, Transcription Factors, Immunoconjugates, Cell Cycle Proteins, Cell Proliferation, Von Hippel-Lindau Tumor Suppressor Protein, Proteolysis

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