Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α

We report a series of small molecule proteolysis-targeting chimeras (PROTACs) that target the protein kinase p38α for degradation. These PROTACs are based on a ligand of the VHL E3 ubiquitin ligase, which is linked to an ATP competitive inhibitor of p38α. We provide evidence that these compounds can...

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Authors: Cubillos Rojas, Mónica; Loren, Guillem; Hakim, Yusuf Z.; Verdaguer i Espaulella, Xavier; Riera i Escalé, Antoni; Nebreda, Àngel R.
Format: Article
Status:Published version
Publication date:2023
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/205161
Online Access:https://hdl.handle.net/2445/205161
Access Level:Open access
Keyword:Proteïnes quinases
Regulació cel·lular
Protein kinases
Cellular control mechanisms
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author Cubillos Rojas, Mónica
author2 Loren, Guillem
Hakim, Yusuf Z.
Verdaguer i Espaulella, Xavier
Riera i Escalé, Antoni
Nebreda, Àngel R.
author2_role author
author
author
author
author
author_browse Cubillos Rojas, Mónica
Hakim, Yusuf Z.
Loren, Guillem
Nebreda, Àngel R.
Riera i Escalé, Antoni
Verdaguer i Espaulella, Xavier
author_facet Cubillos Rojas, Mónica
Loren, Guillem
Hakim, Yusuf Z.
Verdaguer i Espaulella, Xavier
Riera i Escalé, Antoni
Nebreda, Àngel R.
author_role author
collection Recercat. Dipósit de la Recerca de Catalunya
description We report a series of small molecule proteolysis-targeting chimeras (PROTACs) that target the protein kinase p38α for degradation. These PROTACs are based on a ligand of the VHL E3 ubiquitin ligase, which is linked to an ATP competitive inhibitor of p38α. We provide evidence that these compounds can induce the specific degradation of p38α, but not p38β and other related kinases, at nanomolar concentrations in several mammalian cell lines. We also show that the p38α-specific PROTACs are soluble in aqueous solutions and therefore suitable for their administration to mice. Systemic administration of the PROTACs induces p38α degradation only in the liver, probably due to the PROTAC becoming inactivated in that organ, but upon local administration the PROTACs induce p38α degradation in mammary tumors. Our compounds provide an alternative to traditional chemical inhibitors for targeting p38α signaling in cultured cells and in vivo.
eu_rights_str_mv openAccess
format article
id ES_e703fa1cb08069d97cf663383d6a7e8a
institution Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
network_acronym_str ES
network_name_str España
oai_identifier_str oai:recercat.cat:2445/205161
publishDate 2023
publishDateSort 2023
publisher MDPI
publisherStr MDPI
reponame_str Recercat. Dipósit de la Recerca de Catalunya
spelling Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α Cubillos Rojas, Mónica Loren, Guillem Hakim, Yusuf Z. Verdaguer i Espaulella, Xavier Riera i Escalé, Antoni Nebreda, Àngel R. Proteïnes quinases Regulació cel·lular Protein kinases Cellular control mechanisms We report a series of small molecule proteolysis-targeting chimeras (PROTACs) that target the protein kinase p38α for degradation. These PROTACs are based on a ligand of the VHL E3 ubiquitin ligase, which is linked to an ATP competitive inhibitor of p38α. We provide evidence that these compounds can induce the specific degradation of p38α, but not p38β and other related kinases, at nanomolar concentrations in several mammalian cell lines. We also show that the p38α-specific PROTACs are soluble in aqueous solutions and therefore suitable for their administration to mice. Systemic administration of the PROTACs induces p38α degradation only in the liver, probably due to the PROTAC becoming inactivated in that organ, but upon local administration the PROTACs induce p38α degradation in mammary tumors. Our compounds provide an alternative to traditional chemical inhibitors for targeting p38α signaling in cultured cells and in vivo. MDPI https://hdl.handle.net/2445/205161
spellingShingle Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
Cubillos Rojas, Mónica
Proteïnes quinases
Regulació cel·lular
Protein kinases
Cellular control mechanisms
status_str publishedVersion
title Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
title_full Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
title_fullStr Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
title_full_unstemmed Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
title_short Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
title_sort Synthesis and Biological Activity of a VHL-Based PROTAC Specific for p38α
topic Proteïnes quinases
Regulació cel·lular
Protein kinases
Cellular control mechanisms
topic_facet Proteïnes quinases
Regulació cel·lular
Protein kinases
Cellular control mechanisms
url https://hdl.handle.net/2445/205161