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Dal Forno GM, Latocheski E, Navo CD, Albuquerque BL, St John AL, Avenier F, Jiménez-Osés G, Domingos JB. Interplay of chloride levels and palladium(ii)-catalyzed O-deallenylation bioorthogonal uncaging reactions. Chem Sci 2024; 15:4458-4465. [PMID: 38516072 PMCID: PMC10952092 DOI: 10.1039/d3sc06408e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/15/2024] [Indexed: 03/23/2024] Open
Abstract
The palladium-mediated uncaging reaction of allene substrates remains a promising yet often overlooked strategy in the realm of bioorthogonal chemistry. This method exhibits high kinetic rates, rivaling those of the widely employed allylic and propargylic protecting groups. In this study, we investigate into the mechanistic aspects of the C-O bond-cleavage deallenylation reaction, examining how chloride levels influence the kinetics when triggered by Pd(ii) complexes. Focusing on the deallenylation of 1,2-allenyl protected 4-methylumbelliferone promoted by Allyl2Pd2Cl2, our findings reveal that reaction rates are higher in environments with lower chloride concentrations, mirroring intracellular conditions, compared to elevated chloride concentrations typical of extracellular conditions. Through kinetic and spectroscopic experiments, combined with DFT calculations, we uncover a detailed mechanism that identifies AllylPd(H2O)2 as the predominant active species. These insights provide the basis for the design of π-allylpalladium catalysts suited for selective uncaging within specific cellular environments, potentially enhancing targeted therapeutic applications.
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Affiliation(s)
- Gean M Dal Forno
- Laboratory of Biomimetic Catalysis (LaCBio), Department of Chemistry, Federal University of Santa Catarina (UFSC) Campus Trindade Florianópolis 88040-900 SC Brazil
| | - Eloah Latocheski
- Laboratory of Biomimetic Catalysis (LaCBio), Department of Chemistry, Federal University of Santa Catarina (UFSC) Campus Trindade Florianópolis 88040-900 SC Brazil
| | - Claudio D Navo
- Center for Cooperative Research in Biosciences (CIC BioGUNE), Basque Research and Technology Alliance (BRTA) Bizkaia Technology Park, Building 800, Derio 48160 Spain
| | - Brunno L Albuquerque
- Laboratory of Biomimetic Catalysis (LaCBio), Department of Chemistry, Federal University of Santa Catarina (UFSC) Campus Trindade Florianópolis 88040-900 SC Brazil
| | - Albert L St John
- Laboratory of Biomimetic Catalysis (LaCBio), Department of Chemistry, Federal University of Santa Catarina (UFSC) Campus Trindade Florianópolis 88040-900 SC Brazil
| | - Frédéric Avenier
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182), Université Paris Saclay 9140 Orsay Cedex France
| | - Gonzalo Jiménez-Osés
- Center for Cooperative Research in Biosciences (CIC BioGUNE), Basque Research and Technology Alliance (BRTA) Bizkaia Technology Park, Building 800, Derio 48160 Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Spain
| | - Josiel B Domingos
- Laboratory of Biomimetic Catalysis (LaCBio), Department of Chemistry, Federal University of Santa Catarina (UFSC) Campus Trindade Florianópolis 88040-900 SC Brazil
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2
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Barbosa BMG, Sfyaki A, Rafael S, José-Duran F, Pous J, Sánchez-Zarzalejo C, Perez-Lopez C, Vilanova M, Cigler M, Gay M, Vilaseca M, Winter GE, Riera A, Mayor-Ruiz C. Discovery and Mechanistic Elucidation of NQO1-Bioactivatable Small Molecules That Overcome Resistance to Degraders. Angew Chem Int Ed Engl 2024; 63:e202316730. [PMID: 38153885 DOI: 10.1002/anie.202316730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 12/30/2023]
Abstract
Degraders hold the promise to efficiently inactivate previously intractable disease-relevant targets. Unlike traditional inhibitors, degraders act substoichiometrically and rely on the hijacked proteolysis machinery, which can also act as an entry point for resistance. To fully harness the potential of targeted protein degradation, it is crucial to comprehend resistance mechanisms and formulate effective strategies to overcome them. We conducted a chemical screening to identify synthetic lethal vulnerabilities of cancer cells that exhibit widespread resistance to degraders. Comparative profiling followed by tailored optimization delivered the small molecule RBS-10, which shows preferential cytotoxicity against cells pan-resistant to degraders. Multiomics deconvolution of the mechanism of action revealed that RBS-10 acts as a prodrug bioactivated by the oxidoreductase enzyme NQO1, which is highly overexpressed in our resistance models. Collectively, our work informs on NQO1 as an actionable vulnerability to overcome resistance to degraders and as a biomarker to selectively exploit bioactivatable prodrugs in cancer.
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Affiliation(s)
- Bárbara M G Barbosa
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Aikaterini Sfyaki
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Sergi Rafael
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Ferran José-Duran
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Joan Pous
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Carolina Sánchez-Zarzalejo
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Carles Perez-Lopez
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Mar Vilanova
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Marko Cigler
- Research Center for Molecular Medicine of the Austrian Academy of Sciences (CeMM), 1090, Vienna, Austria
| | - Marina Gay
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Marta Vilaseca
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
| | - Georg E Winter
- Research Center for Molecular Medicine of the Austrian Academy of Sciences (CeMM), 1090, Vienna, Austria
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
- Departament de Química Inorgànica i Orgànica, Secció Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Cristina Mayor-Ruiz
- Institute for Research in Biomedicine (IRB Barcelona), the, Barcelona Institute of Science and Technology (BIST), 08028, Barcelona, Spain
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3
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Zhao W, Chen Y, Hu N, Long D, Cao Y. The uses of zebrafish (Danio rerio) as an in vivo model for toxicological studies: A review based on bibliometrics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116023. [PMID: 38290311 DOI: 10.1016/j.ecoenv.2024.116023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/20/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
An in vivo model is necessary for toxicology. This review analyzed the uses of zebrafish (Danio rerio) in toxicology based on bibliometrics. Totally 56,816 publications about zebrafish from 2002 to 2023 were found in Web of Science Core Collection, with Toxicology as the top 6 among all disciplines. Accordingly, the bibliometric map reveals that "toxicity" has become a hot keyword. It further reveals that the most common exposure types include acute, chronic, and combined exposure. The toxicological effects include behavioral, intestinal, cardiovascular, hepatic, endocrine toxicity, neurotoxicity, immunotoxicity, genotoxicity, and reproductive and transgenerational toxicity. The mechanisms include oxidative stress, inflammation, autophagy, and dysbiosis of gut microbiota. The toxicants commonly evaluated by using zebrafish model include nanomaterials, arsenic, metals, bisphenol, and dioxin. Overall, zebrafish provide a unique and well-accepted model to investigate the toxicological effects and mechanisms. We also discussed the possible ways to address some of the limitations of zebrafish model, such as the combination of human organoids to avoid species differences.
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Affiliation(s)
- Weichao Zhao
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Yuna Chen
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China
| | - Nan Hu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China.
| | - Dingxin Long
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China.
| | - Yi Cao
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, PR China.
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