Cited by 219Protein Degradation and InhibitorsChemical Synthesis and AnalysisChronic Lymphocytic Leukemia Research

Antibody Conjugation of a Chimeric BET Degrader Enables in vivo Activity

Pillow, Thomas H., Adhikari, Pragya, Blake, Robert A., Chen, Jinhua, Del Rosario, Geoffrey, Deshmukh, Gauri, Figueroa, Isabel, Gascoigne, Karen E. +24 more·2020·ChemMedChem

Abstract

The ability to selectively degrade proteins with bifunctional small molecules has the potential to fundamentally alter therapy in a variety of diseases. However, the relatively large size of these chimeric molecules often results in challenging physico‐chemical properties (e. g., low aqueous solubility) and poor pharmacokinetics which may complicate their in vivo applications. We recently discovered an exquisitely potent chimeric BET degrader (GNE‐987) which exhibited picomolar cell potencies but also demonstrated low in vivo exposures. In an effort to improve the pharmacokinetic properties of this molecule, we discovered the first degrader‐antibody conjugate by attaching GNE‐987 to an anti‐CLL1 antibody via a novel linker. A single IV dose of the conjugate afforded sustained in vivo exposures that resulted in antigen‐specific tumor regressions. Enhancement of a chimeric protein degrader with poor in vivo properties through antibody conjugation thereby expands the utility of directed protein degradation as both a biological tool and a therapeutic possibility.

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Crossref · 10.1002/cmdc.201900497

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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 [160]

  • Antibody-PROTAC conjugates can selectively degrade proteins of interest in targeted cells or tissues.

    “These Ab-PROTACs can selectively degrade POIs in targeted cells/tissues [38–40].”

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Authors
Pillow, T. H., Adhikari, P., Blake, R. A., Chen, J., Del Rosario, G., Deshmukh, G., Figueroa, I., Gascoigne, K. E., Kamath, A. V., Kaufman, S., Kleinheinz, T., Kozak, K. R., Latifi, B., Leipold, D. D., Sing Li, C., Li, R., Mulvihill, M. M., O'Donohue, A., Rowntree, R. K., Sadowsky, J. D., Wai, J., Wang, X., Wu, C., Xu, Z., Yao, H., Yu, S., Zhang, D., Zang, R., Zhang, H., Zhou, H., Zhu, X., & Dragovich, P. S.
Affiliations
  • Genentech (US)
  • WuXi AppTec (China) (CN)
  • Genentech Inc. 1 DNA Way South San Francisco CA 94080 USA
  • Wuxi Apptec 288 Fute Zhong Road Waigaoqiao Free Trade Zone Shanghai 200131 China
Corresponding author
Dragovich, Peter S.
Venue
ChemMedChem
Publisher
Wiley
Published
2019-11-14
Volume
15
Issue
1
Pages
17-25
ISSN
  • 1860-7179 (ISSN-L)
  • 1860-7187
OpenAlex
W2987291349
Cited by
216
References
43
Citations by year
2026: 39 · 2025: 36 · 2024: 41 · 2023: 36 · 2022: 34 · 2021: 15 · 2020: 14 · 2019: 1
FWCI
5.29
Type
journal article
Language
en
Open access
closed
Locations
  • ChemMedChem (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Health Sciences › Medicine › Genetics › Chronic Lymphocytic Leukemia Research
Keywords
antibody conjugation, pharmacokinetics, water solubility, linker design, in vivo exposure, targeted protein degradation, tumor regression
MeSH terms
Bromodomain Containing Proteins, Animals, Antibodies, Monoclonal, Cell Survival, Drug Carriers, Female, Half-Life, Heterocyclic Compounds, 4 or More Rings, Humans, Protein Binding, Receptors, Mitogen, Transcription Factors, Leukemia, Myeloid, Acute, Proto-Oncogene Proteins c-myc, Mice, SCID, Immunoconjugates, Cell Cycle Proteins, Surface Plasmon Resonance, Xenograft Model Antitumor Assays, Lectins, C-Type, Cell Line, Tumor, Mice, Von Hippel-Lindau Tumor Suppressor Protein, Proteolysis

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