Discovery and Characterisation of Highly Cooperative FAK‐Degrading PROTACs

Focal adhesion kinase (FAK) is a key mediator of tumour progression and metastasis. To date, clinical trials of FAK inhibitors have reported disappointing efficacy for oncology indications. We report the design and characterisation of GSK215, a potent, selective, FAK‐degrading Proteolysis Targeting...

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Veröffentlicht in:Angewandte Chemie International Edition 2021-10, Vol.60 (43), p.23327-23334
Hauptverfasser: Law, Robert P., Nunes, Joao, Chung, Chun‐wa, Bantscheff, Marcus, Buda, Karol, Dai, Han, Evans, John P., Flinders, Adam, Klimaszewska, Diana, Lewis, Antonia J., Muelbaier, Marcel, Scott‐Stevens, Paul, Stacey, Peter, Tame, Christopher J., Watt, Gillian F., Zinn, Nico, Queisser, Markus A., Harling, John D., Benowitz, Andrew B.
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container_end_page 23334
container_issue 43
container_start_page 23327
container_title Angewandte Chemie International Edition
container_volume 60
creator Law, Robert P.
Nunes, Joao
Chung, Chun‐wa
Bantscheff, Marcus
Buda, Karol
Dai, Han
Evans, John P.
Flinders, Adam
Klimaszewska, Diana
Lewis, Antonia J.
Muelbaier, Marcel
Scott‐Stevens, Paul
Stacey, Peter
Tame, Christopher J.
Watt, Gillian F.
Zinn, Nico
Queisser, Markus A.
Harling, John D.
Benowitz, Andrew B.
description Focal adhesion kinase (FAK) is a key mediator of tumour progression and metastasis. To date, clinical trials of FAK inhibitors have reported disappointing efficacy for oncology indications. We report the design and characterisation of GSK215, a potent, selective, FAK‐degrading Proteolysis Targeting Chimera (PROTAC) based on a binder for the VHL E3 ligase and the known FAK inhibitor VS‐4718. X‐ray crystallography revealed the molecular basis of the highly cooperative FAK‐GSK215‐VHL ternary complex, and GSK215 showed differentiated in‐vitro pharmacology compared to VS‐4718. In mice, a single dose of GSK215 induced rapid and prolonged FAK degradation, giving a long‐lasting effect on FAK levels (≈96 h) and a marked PK/PD disconnect. This tool PROTAC molecule is expected to be useful for the study of FAK‐degradation biology in vivo, and our results indicate that FAK degradation may be a differentiated clinical strategy versus FAK inhibition for the treatment of cancer. A PROTAC with an unusually short linker potently degrades focal adhesion kinase (FAK). SPR and X‐ray crystallography revealed a highly cooperative FAK‐PROTAC‐VCB ternary complex, and FAK degradation showed enhanced effects on 3D cell growth compared to FAK inhibitors. In mice, GSK215 induced rapid and sustained degradation of FAK with a profound PK/PD disconnect.
doi_str_mv 10.1002/anie.202109237
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SPR and X‐ray crystallography revealed a highly cooperative FAK‐PROTAC‐VCB ternary complex, and FAK degradation showed enhanced effects on 3D cell growth compared to FAK inhibitors. In mice, GSK215 induced rapid and sustained degradation of FAK with a profound PK/PD disconnect.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/anie.202109237</doi><tpages>8</tpages><edition>International ed. in English</edition><orcidid>https://orcid.org/0000-0003-3602-324X</orcidid><orcidid>https://orcid.org/0000-0002-2480-3110</orcidid><orcidid>https://orcid.org/0000-0002-3879-3160</orcidid><orcidid>https://orcid.org/0000-0003-3592-5751</orcidid><orcidid>https://orcid.org/0000-0002-8343-8977</orcidid><orcidid>https://orcid.org/0000-0002-3368-3827</orcidid><orcidid>https://orcid.org/0000-0001-9312-0498</orcidid><orcidid>https://orcid.org/0000-0002-9913-605X</orcidid><orcidid>https://orcid.org/0000-0002-2585-4585</orcidid></addata></record>
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subjects cancer
Clinical trials
Crystallography
Degradation
drug design
Focal adhesion kinase
In vivo methods and tests
Kinases
medicinal chemistry
Metastases
Pharmacology
protein degradation
Proteolysis
proteolysis-targeting chimeras (PROTACs)
Tumors
Ubiquitin-protein ligase
title Discovery and Characterisation of Highly Cooperative FAK‐Degrading PROTACs
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