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Renard I, D’huys T, Burke BP, Ajoleza T, Cain AN, Funwie NL, Khan A, Maples DL, Maples RD, Matz DL, McRobbie G, Ullom R, Prior TJ, Linder DP, Van Loy T, Hubin TJ, Schols D, Archibald SJ. Rigid Macrocycle Metal Complexes as CXCR4 Chemokine Receptor Antagonists: Influence of Ring Size. Pharmaceutics 2024; 16:1000. [PMID: 39204345 PMCID: PMC11360128 DOI: 10.3390/pharmaceutics16081000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/13/2024] [Accepted: 07/19/2024] [Indexed: 09/04/2024] Open
Abstract
Understanding the role of chemokine receptors in health and disease has been of increasing interest in recent years. Chemokine receptor CXCR4 has been extensively studied because of its defined role in immune cell trafficking, HIV infection, inflammatory diseases, and cancer progression. We have developed high affinity rigidified CXCR4 antagonists that incorporate metal ions to optimize the binding interactions with the aspartate side chains at the extracellular surface of the CXCR4 chemokine receptor and increase the residence time. Cross- and side-bridged tetraazamacrocylic complexes offer significant advantages over the non-bridged molecular structures in terms of receptor affinity, potential for radiolabelling, and use in therapeutic applications. Our investigation has been extended to the influence of the ring size on bridged tetraazamacrocyclic compounds with the addition of two novel chelators (bis-cross-bridged homocyclen and bis-cross-bridged cyclen) to compare to the bis-bridged cyclam, along with novel metal complexes formed with copper(II) or zinc(II). The in vitro biological assays showed that all of the zinc(II) complexes are high affinity antagonists with a marked increase in CXCR4 selectivity for the bis-cross-bridged cyclen complex, whereas the properties of the copper(II) complexes are highly dependent on metal ion geometry. X-ray crystal structural data and DFT computational studies allow for the rationalisation of the relative affinities and the aspartate residue interactions on the protein surface. Changing the ring size from 14-membered can increase the selectivity for the CXCR4 receptor whilst retaining potent inhibitory activity, improving the key pharmacological characteristics.
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Affiliation(s)
- Isaline Renard
- Centre for Biomedicine and Positron Emission Tomography Research Centre, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
- School of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
| | - Thomas D’huys
- Division of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, B-3000 Leuven, Belgium
| | - Benjamin P. Burke
- Centre for Biomedicine and Positron Emission Tomography Research Centre, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Trisha Ajoleza
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Amy N. Cain
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Neil L. Funwie
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Abid Khan
- Centre for Biomedicine and Positron Emission Tomography Research Centre, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
| | - Danny L. Maples
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Randall D. Maples
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Dallas L. Matz
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Graeme McRobbie
- Centre for Biomedicine and Positron Emission Tomography Research Centre, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Robert Ullom
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Timothy J. Prior
- Chemistry, Faculty of Science and Engineering, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - Douglas P. Linder
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Tom Van Loy
- Division of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, B-3000 Leuven, Belgium
| | - Timothy J. Hubin
- Department of Chemistry and Physics, Southwestern Oklahoma State University, Weatherford, OK 73096, USA
| | - Dominique Schols
- Division of Virology and Chemotherapy, Rega Institute for Medical Research, KU Leuven, B-3000 Leuven, Belgium
| | - Stephen J. Archibald
- Centre for Biomedicine and Positron Emission Tomography Research Centre, The University of Hull, Cottingham Road, Hull HU6 7RX, UK
- School of Biomedical Engineering and Imaging Sciences, King’s College London, 4th Floor Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
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Kusukawa T, Matoba K, Hoshihara Y, Tanaka S, Nakajima A. Carboxylic acid recognition of an N-ethyl-substituted diamidine having a diphenylnaphthalene unit in competing protic solvents. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Butler SM, Jolliffe KA. Molecular recognition and sensing of dicarboxylates and dicarboxylic acids. Org Biomol Chem 2020; 18:8236-8254. [PMID: 33001119 DOI: 10.1039/d0ob01761b] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The recognition and detection of dicarboxylic acids and dicarboxylates is of significance for a wide variety of applications, including medical diagnosis, monitoring of health and of environmental contaminants, and in industry. Hence small molecule receptors and sensors for dicarboxylic acids and dicarboxylates have great potential for applications in these fields. This review outlines the challenges faced in the recognition and detection of these species, strategies that have been used to obtain effective and observable interactions with dicarboxylic acids and dicarboxylates, and progress made in this field in the period from 2014 to 2020.
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Affiliation(s)
- Stephen M Butler
- School of Chemistry, The University of Sydney, NSW 2006, Australia.
| | - Katrina A Jolliffe
- School of Chemistry, The University of Sydney, NSW 2006, Australia. and The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW 2006, Australia
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Miljkovic A, La Cognata S, Bergamaschi G, Freccero M, Poggi A, Amendola V. Towards Building Blocks for Supramolecular Architectures Based on Azacryptates. Molecules 2020; 25:molecules25071733. [PMID: 32283788 PMCID: PMC7181268 DOI: 10.3390/molecules25071733] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/03/2020] [Accepted: 04/06/2020] [Indexed: 12/03/2022] Open
Abstract
In this work, we report the synthesis of a new bis(tris(2-aminoethyl)amine) azacryptand L with triphenyl spacers. The binding properties of its dicopper complex for aromatic dicarboxylate anions (as TBA salts) were investigated, with the aim to obtain potential building blocks for supramolecular structures like rotaxanes and pseudo-rotaxanes. As expected, UV-Vis and emission studies of [Cu2L]4+ in water/acetonitrile mixture (pH = 7) showed a high affinity for biphenyl-4,4′-dicarboxylate (dfc2−), with a binding constant of 5.46 log units, due to the best match of the anion bite with the Cu(II)-Cu(II) distance in the cage’s cavity. Compared to other similar bistren cages, the difference of the affinity of [Cu2L]4+ for the tested anions was not so pronounced: conformational changes of L seem to promote a good interaction with both long (e.g., dfc2−) and short anions (e.g., terephthalate). The good affinity of [Cu2L]4+ for these dicarboxylates, together with hydrophobic interactions within the cage’s cavity, may promote the self-assembly of a stable 1:1 complex in water mixture. These results represent a good starting point for the application of these molecular systems as building units for the design of new supramolecular architectures based on non-covalent interactions, which could be of interest in all fields related to supramolecular devices.
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Affiliation(s)
- Ana Miljkovic
- Department of Chemistry, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (A.M.); (M.F.); (A.P.); (V.A.)
| | - Sonia La Cognata
- Department of Chemistry, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (A.M.); (M.F.); (A.P.); (V.A.)
- Correspondence:
| | - Greta Bergamaschi
- Istituto di Scienze e Tecnologie Chimiche, National Research Council of Italy, Via M. Bianco 9, 20131 Milano, Italy;
| | - Mauro Freccero
- Department of Chemistry, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (A.M.); (M.F.); (A.P.); (V.A.)
| | - Antonio Poggi
- Department of Chemistry, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (A.M.); (M.F.); (A.P.); (V.A.)
| | - Valeria Amendola
- Department of Chemistry, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (A.M.); (M.F.); (A.P.); (V.A.)
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Amendola V, Bergamaschi G, Guglielmo L, Izzo L, Mangano C, Mella M, Milanese C, Miljkovic A. Dicopper(II) MozobilTM: a dinuclear receptor for the pyrophosphate anion in aqueous solution. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1373194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Valeria Amendola
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Greta Bergamaschi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Milano, Italy
| | | | - Lorella Izzo
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Fisciano, Italy
| | - Carlo Mangano
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Massimo Mella
- Dipartimento di Scienza ed Alta Tecnologia, Università degli Studi dell'Insubria, Como, Italy
| | - Chiara Milanese
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
| | - Ana Miljkovic
- Dipartimento di Chimica, Università degli Studi di Pavia, Pavia, Italy
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