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Russi M, Valeri R, Marson D, Danielli C, Felluga F, Tintaru A, Skoko N, Aulic S, Laurini E, Pricl S. Some things old, new and borrowed: Delivery of dabrafenib and vemurafenib to melanoma cells via self-assembled nanomicelles based on an amphiphilic dendrimer. Eur J Pharm Sci 2023; 180:106311. [PMID: 36273785 DOI: 10.1016/j.ejps.2022.106311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Two clinically approved anticancer drugs targeting BRAF in melanoma patients - dabrafenib (DAB) and vemurafenib (VEM) - have been successfully encapsulated into nanomicelles formed upon self-assembly of an amphiphilic dendrimer AD based on two C18 aliphatic chains and a G2 PAMAM head. The process resulted in the formation of well-defined (∼10 nm) core-shell nanomicelles (NMs) with excellent encapsulation efficiency (∼70% for DAB and ∼60% for VEM) and good drug loading capacity (∼27% and ∼24% for DAB and VEM, respectively). Dynamic light scattering (DLS), transmission electron microscopy (TEM), small-angle x-ray scattering (SAXS), nuclear magnetic resonance (NMR), isothermal titration calorimetry (ITC), and molecular simulation (MS) experiments were used, respectively, to determine the size and structure of the empty and drug-loaded nanomicelles (DLNMs), along with the interactions between the NMs and their cargoes. The in vitro release data revealed profiles governed by Fickian diffusion; moreover, for both anticancer molecules, an acidic environment (pH = 5.0) facilitated drug release with respect to physiological pH conditions (pH = 7.4). Finally, both DAB- and VEM-loaded NMs elicited enhanced response with respect to free drug treatments in 4 different melanoma cell lines.
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Affiliation(s)
- Maria Russi
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy
| | - Rachele Valeri
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy
| | - Domenico Marson
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy
| | - Chiara Danielli
- Department of Chemical and Pharmaceutical Sciences, DSCF, University of Trieste, Via Giorgeri 1, Trieste 34127, Italy
| | - Fulvia Felluga
- Department of Chemical and Pharmaceutical Sciences, DSCF, University of Trieste, Via Giorgeri 1, Trieste 34127, Italy
| | - Aura Tintaru
- Aix Marseille Univ, CNRS - Centre Interdisciplinaire de Nanosciences de Marseille (CINaM) UMR 7325 - Département IMMF - Campus Luminy, 163, Avenue de Luminy, Marseille 13288, France
| | - Natasa Skoko
- Biotechnology Development Unit, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Suzana Aulic
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy; Biotechnology Development Unit, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Erik Laurini
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy.
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS) - DEA, University of Trieste, Piazzale Europa 1, Trieste 34127, Italy; Department of General Biophysics, University of Łódź, ul. Pomorska 141/143, Łódź 90-236, Poland
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Affiliation(s)
- Christin Bednarek
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Ilona Wehl
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Nicole Jung
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Ute Schepers
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
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Anabuki T, Tsukahara M, Matsuura H, Takahashi K. Tandem photoaffinity labeling of a target protein using a linker with biotin, alkyne and benzophenone groups and a bioactive small molecule with an azide group. Biosci Biotechnol Biochem 2016; 80:432-9. [DOI: 10.1080/09168451.2015.1104240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
A novel linker containing biotin, alkyne and benzophenone groups (1) was synthesized to identify target proteins using a small molecule probe. This small molecule probe contains an azide group (azide probe) that reacts with an alkyne in 1 via an azide–alkyne Huisgen cycloaddition. Cross-linking of benzophenone to the target protein formed a covalently bound complex consisting of the azide probe and the target protein via 1. The biotin was utilized via biotin–avidin binding to identify the cross-linked complex. To evaluate the effectiveness of 1, it was applied in a model system using an allene oxide synthase (AOS) from the model moss Physcomitrella patens (PpAOS1) and an AOS inhibitor that contained azide group (3). The cross-linked complex consisting of PpAOS1, 1 and 3 was resolved via SDS–PAGE and visualized using a chemiluminescent system. The method that was developed in this study enables the effective identification of target proteins.
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Affiliation(s)
- Tomoaki Anabuki
- Research Faculty of Agriculture, Division of Fundamental Agriscience Research, Hokkaido University, Sapporo, Japan
| | - Miu Tsukahara
- Research Faculty of Agriculture, Division of Fundamental Agriscience Research, Hokkaido University, Sapporo, Japan
| | - Hideyuki Matsuura
- Research Faculty of Agriculture, Division of Fundamental Agriscience Research, Hokkaido University, Sapporo, Japan
| | - Kosaku Takahashi
- Research Faculty of Agriculture, Division of Fundamental Agriscience Research, Hokkaido University, Sapporo, Japan
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van Berkel SS, van Eldijk MB, van Hest JCM. Staudinger ligation as a method for bioconjugation. Angew Chem Int Ed Engl 2011; 50:8806-27. [PMID: 21887733 DOI: 10.1002/anie.201008102] [Citation(s) in RCA: 206] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 11/11/2022]
Abstract
In 1919 the German chemist Hermann Staudinger was the first to describe the reaction between an azide and a phosphine. It was not until recently, however, that Bertozzi and co-workers recognized the potential of this reaction as a method for bioconjugation and transformed it into the so-called Staudinger ligation. The bio-orthogonal character of both the azide and the phosphine functions has resulted in the Staudinger ligation finding numerous applications in various complex biological systems. For example, the Staudinger ligation has been utilized to label glycans, lipids, DNA, and proteins. Moreover, the Staudinger ligation has been used as a synthetic method to construct glycopeptides, microarrays, and functional biopolymers. In the emerging field of bio-orthogonal ligation strategies, the Staudinger ligation has set a high standard to which most of the new techniques are often compared. This Review summarizes recent developments and new applications of the Staudinger ligation.
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Affiliation(s)
- Sander S van Berkel
- Department of Bioorganic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands
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Comparative analysis of cleavable azobenzene-based affinity tags for bioorthogonal chemical proteomics. ACTA ACUST UNITED AC 2011; 17:1212-22. [PMID: 21095571 DOI: 10.1016/j.chembiol.2010.09.012] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 09/05/2010] [Accepted: 09/14/2010] [Indexed: 01/17/2023]
Abstract
The advances in bioorthogonal ligation methods have provided new opportunities for proteomic analysis of newly synthesized proteins, posttranslational modifications, and specific enzyme families using azide/alkyne-functionalized chemical reporters and activity-based probes. Efficient enrichment and elution of azide/alkyne-labeled proteins with selectively cleavable affinity tags are essential for protein identification and quantification applications. Here, we report the synthesis and comparative analysis of Na₂S₂O₄-cleavable azobenzene-based affinity tags for bioorthogonal chemical proteomics. We demonstrated that ortho-hydroxyl substituent is required for efficient azobenzene-bond cleavage and show that these cleavable affinity tags can be used to identify newly synthesized proteins in bacteria targeted by amino acid chemical reporters as well as their sites of modification on endogenously expressed proteins. The azobenzene-based affinity tags are compatible with in-gel, in-solution, and on-bead enrichment strategies and should afford useful tools for diverse bioorthogonal proteomic applications.
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Budin G, Moune-Dimala M, Leriche G, Saliou JM, Papillon J, Sanglier-Cianférani S, Van Dorsselaer A, Lamour V, Brino L, Wagner A. Nondenaturing Chemical Proteomics for Protein Complex Isolation and Identification. Chembiochem 2010; 11:2359-61. [DOI: 10.1002/cbic.201000574] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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