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Li W, Yu J, Wang J, Fan X, Xu X, Wang H, Xiong Y, Li X, Zhang X, Zhang Q, Qi X, Pigeon P, Gu Q, Bruno-Colmenarez J, Jaouen G, McGlinchey MJ, Qiu X, You SL, Li J, Wang Y. How does ferrocene correlate with ferroptosis? Multiple approaches to explore ferrocene-appended GPX4 inhibitors as anticancer agents. Chem Sci 2024; 15:10477-10490. [PMID: 38994406 PMCID: PMC11234876 DOI: 10.1039/d4sc02002b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/31/2024] [Indexed: 07/13/2024] Open
Abstract
Ferroptosis has emerged as a form of programmed cell death and exhibits remarkable promise for anticancer therapy. However, it is challenging to discover ferroptosis inducers with new chemotypes and high ferroptosis-inducing potency. Herein, we report a new series of ferrocenyl-appended GPX4 inhibitors rationally designed in a "one stone kills two birds" strategy. Ferroptosis selectivity assays, GPX4 inhibitory activity and CETSA experiments validated the inhibition of novel compounds on GPX4. In particular, the ROS-related bioactivity assays highlighted the ROS-inducing ability of 17 at the molecular level and their ferroptosis enhancement at the cellular level. These data confirmed the dual role of ferrocene as both the bioisostere motif maintaining the inhibition capacity of certain molecules with GPX4 and also as the ROS producer to enhance the vulnerability to ferroptosis of cancer cells, thereby attenuating tumor growth in vivo. This proof-of-concept study of ferrocenyl-appended ferroptosis inducers via rational design may not only advance the development of ferroptosis-based anticancer treatment, but also illuminate the multiple roles of the ferrocenyl component, thus opening the way to novel bioorganometallics for potential disease therapies.
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Affiliation(s)
- Wei Li
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Jing Yu
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Jing Wang
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Xuejing Fan
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Ximing Xu
- Marine Biomedical Research Institute of Qingdao, School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 266003 Shandong P. R. China
| | - Hui Wang
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Ying Xiong
- School of Pharmacy, Fudan University Shanghai 201203 China
| | - Xinyu Li
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Xiaomin Zhang
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Qianer Zhang
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Xin Qi
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Pascal Pigeon
- PSL, Chimie ParisTech 11 Rue Pierre et Marie Curie F-75005 Paris France
- Sorbonne Université, UMR 8232 CNRS, IPCM 4 Place Jussieu F-75005 Paris France
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
| | | | - Gérard Jaouen
- PSL, Chimie ParisTech 11 Rue Pierre et Marie Curie F-75005 Paris France
- Sorbonne Université, UMR 8232 CNRS, IPCM 4 Place Jussieu F-75005 Paris France
| | | | - Xue Qiu
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P. R. China
| | - Jing Li
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
| | - Yong Wang
- School of Medicine and Pharmacy, Key Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China Qingdao 26003 Shandong P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology Qingdao 266200 P. R. China
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2
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Malina J, Crowley JD, Brabec V. Interaction of dinuclear Co(III) cylinders with higher-order DNA structures. Chem Biol Interact 2024; 395:111031. [PMID: 38703805 DOI: 10.1016/j.cbi.2024.111031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/20/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Alternative DNA structures play critical roles in fundamental biological processes linked to human diseases. Thus, targeting and stabilizing these structures by specific ligands could affect the progression of cancer and other diseases. Here, we describe, using methods of molecular biophysics, the interactions of two oxidatively locked [Co2L3]6+ cylinders, rac-2 and meso-1, with diverse alternative DNA structures, such as junctions, G quadruplexes, and bulges. This study was motivated by earlier results demonstrating that both Co(III) cylinders exhibit potent and selective activity against cancer cells, accumulate in the nucleus of cancer cells, and prove to be efficient DNA binders. The results show that the bigger cylinder rac-2 stabilizes all DNA structures, while the smaller cylinder meso-1 stabilizes just the Y-shaped three-way junctions. Collectively, the results of this study suggest that the stabilization of alternative DNA structures by Co(III) cylinders investigated in this work might contribute to the mechanism of their biological activity.
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Affiliation(s)
- Jaroslav Malina
- Czech Academy of Sciences, Institute of Biophysics, CZ-61200, Brno, Czech Republic
| | - James D Crowley
- Department of Chemistry, University of Otago, Dunedin, 9016, Otago, New Zealand
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, CZ-61200, Brno, Czech Republic; Department of Biophysics, Faculty of Science, Palacky University, CZ-78371, Olomouc, Czech Republic.
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3
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de Montmollin J, Solea AB, Chen DW, Fadaei-Tirani F, Severin K. Orientational Self-Sorting in Octahedral Palladium Cages: Scope and Limitations of the " cis Rule". Inorg Chem 2024; 63:4583-4588. [PMID: 38198590 DOI: 10.1021/acs.inorgchem.3c04033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Octahedral coordination cages of the general formula [Pd6L12](BF4)12 were obtained by combining [Pd(CH3CN)4](BF4)2 with heteroditopic N-donor ligands. Four different ligands were employed. These ligands have 3-pyridyl donor groups at one end and 4-pyridyl, imidazolyl, or triazolyl donor groups at the other end. According to a geometric analysis, cages with a cis configuration at the six metal centers should be preferred ("cis rule"). This prediction was corroborated by spectroscopic data and crystallographic analyses. Limitations of the "cis rule" were also encountered, and possible explanations are discussed.
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Affiliation(s)
- Jean de Montmollin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Atena B Solea
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Damien W Chen
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Farzaneh Fadaei-Tirani
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Kay Severin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
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4
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Wang H, Fan X, Xie PP, Yang S, Pigeon P, Xiong Y, Gai S, Qi X, Wang J, Zhang Q, Li W, Qian H, McGlinchey MJ, Jaouen G, Zheng C, Wang Y. Deciphering the Diversified Metabolic Behavior of Hydroxyalkyl Ferrocidiphenols as Anticancer Complexes. J Med Chem 2024; 67:1209-1224. [PMID: 38156614 DOI: 10.1021/acs.jmedchem.3c01709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Ferrocidiphenols possessing appropriate substituents in the aliphatic chain have very promising anticancer properties, but a systematic approach to deciphering their diversified metabolic behavior has so far been lacking. Herein, we show that a series of novel ferrocidiphenols bearing different hydroxyalkyl substituents exhibit strong anticancer activity as revealed in a range of in vitro and in vivo experiments. Moreover, they display diversified oxidative transformation profiles very distinct from those of previous complexes, shown by the use of chemical and enzymatic methods and in cellulo and in vivo metabolism studies. In view of this phenomenon, unprecedented chemo-evolutionary sequences that connect all the ferrocidiphenol-related intermediates and analogues have been established. In addition, a comprehensive density functional theory (DFT) study has been performed to decipher the metabolic diversification profiles of these complexes and demonstrate the delicate modulation of carbenium ions by the ferrocenyl moiety, via either α- or β-positional participation.
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Affiliation(s)
- Hui Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Xuejing Fan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Pei-Pei Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Shuang Yang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Pascal Pigeon
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Sorbonne Université, UMR 8232 CNRS, IPCM, 4 place Jussieu, F-75005 Paris, France
| | - Ying Xiong
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Susu Gai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Xin Qi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Jing Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Qianer Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Wei Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Huimei Qian
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Michael J McGlinchey
- UCD School of Chemistry, University College Dublin, Belfield, Dublin 4 D04 C1P1, Ireland
| | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Sorbonne Université, UMR 8232 CNRS, IPCM, 4 place Jussieu, F-75005 Paris, France
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Yong Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
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5
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Moree LK, Faulkner LAV, Crowley JD. Heterometallic cages: synthesis and applications. Chem Soc Rev 2024; 53:25-46. [PMID: 38037385 DOI: 10.1039/d3cs00690e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
High symmetry metallosupramolecular architectures (MSAs) have been exploited for a range of applications including molecular recognition, catalysis and drug delivery. Recently there have been increasing efforts to enhance those applications by generating reduced symmetry MSAs. While there are several emerging methods for generating lower symmetry MSAs, this tutorial review examines the general methods used for synthesizing heterometallic MSAs with a particular focus on heterometallic cages. Additionally, the intrinsic properties of the cages and their potential emerging applications as host-guest systems and reaction catalysts are described.
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Affiliation(s)
- Lana K Moree
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Logan A V Faulkner
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
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Deiser S, Drexler M, Moreno-Alcántar G, Irl M, Schmidt C, Günther T, Casini A. Synthesis of 177Lu-Labeled, Somatostatin-2 Receptor-Targeted Metalla-Assemblies: Challenges in the Design of Supramolecular Radiotherapeutics. Inorg Chem 2023; 62:20710-20720. [PMID: 37556427 DOI: 10.1021/acs.inorgchem.3c02090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Self-assembled supramolecular coordination complexes (SCCs) hold promise for biomedical applications in cancer therapy, although their potential in the field of nuclear medicine is still substantially unexplored. Therefore, in this study an exo-functionalized cationic [Pd2L2]4+ metallacycle (L = 3,5-bis(3-ethynylpyridine)phenyl), targeted to the somatostatin-2 receptor (sst2R) and featuring the DOTA chelator (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) in order to bind the β-- and γ-emitter lutetium-177, was synthesized by self-assembly following ligand synthesis via standard solid-phase peptide synthesis (SPPS). This metallacycle was then characterized by reverse-phase high-performance liquid chromatography (RP-HPLC), electrospray ionization mass spectrometry (ESI-MS), and 1H and 1H-DOSY NMR (DOSY = diffusion-ordered spectroscopy). A procedure for the radiolabeling of the metallacycle with 177Lu was also optimized. The resulting [nat/177Lu]Lu-DOTA-metallacycle, termed [nat/177Lu]Lu-Cy, was evaluated concerning its stability and in vitro properties. The compound was more lipophilic compared to the reference [177Lu]Lu-DOTA-TATE (logPOct/H2O = -0.85 ± 0.10 versus -3.67 ± 0.04, respectively). While [natLu]Lu-Cy revealed low stability in a DMEM/F12 GlutaMax medium, it demonstrated good stability in other aqueous media as well as in DMSO. A high sst2R binding affinity (expressed as IC50) was determined in CHOsst2 cells (Chinese hamster ovary cells that were stably transfected with human sst2R). Moreover, the metallacycle exhibited high human serum albumin binding, as assessed by high-performance affinity chromatography (HPAC), and moderate stability in human serum compared to [177Lu]Lu-DOTA-TATE (TATE = (Tyr3)-octreotate). In order to improve stability, a heteroleptic approach was used to develop a less sterically hindered cage-like SCC that is potentially endowed with host-guest chemistry capability, which has been preliminarily characterized by RP-HPLC and ESI-MS. Overall, our initial results encourage future studies on sst2R-directed SCCs and have led to new insights into the chemistry of ss2R-directed SCCs for radiopharmaceutical applications.
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Affiliation(s)
- Sandra Deiser
- Chair of Pharmaceutical Radiochemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Walther-Meißner-Str. 3, 85748 Garching b. München, Germany
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching b. München, Germany
| | - Marike Drexler
- Chair of Pharmaceutical Radiochemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Walther-Meißner-Str. 3, 85748 Garching b. München, Germany
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching b. München, Germany
| | - Guillermo Moreno-Alcántar
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching b. München, Germany
| | - Maximilian Irl
- Chair of Pharmaceutical Radiochemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Walther-Meißner-Str. 3, 85748 Garching b. München, Germany
| | - Claudia Schmidt
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching b. München, Germany
| | - Thomas Günther
- Chair of Pharmaceutical Radiochemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Walther-Meißner-Str. 3, 85748 Garching b. München, Germany
| | - Angela Casini
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, School of Natural Sciences, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching b. München, Germany
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7
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Yousef TA, Alrabiah H, Al-Agamy MH, Al-Salahi R, Ali EA, Mostafa GAE. Synthesis of (R)-(6-Methoxyquinolin-4-yl)[(1S,2S,4S,5R)-5-vinylquinuclidin-2-yl]methanol Tetraphenylborate Ion-Pair Complex: Characterization, Antimicrobial, and Computational Study. Molecules 2023; 28:6974. [PMID: 37836825 PMCID: PMC10574080 DOI: 10.3390/molecules28196974] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
The (R)-(6-Methoxyquinolin-4-yl)[(1S,2S,4S,5R)-5-vinylquinuclidin-2-yl]methanol (quinine)-tetraphenylborate complex was synthesized by reacting sodium tetraphenyl borate with quinine in deionized water at room temperature through an ion-pair reaction (green chemistry) at room temperature. The solid complex was characterized by several physicochemical methods. The formation of ion-pair complex between bio-active molecules and/or organic molecules is crucial to comprehending the relationships between bioactive molecules and receptor interactions. The complex under study was examined for antimicrobial activity. All theoretical calculations were carried out in vacuum and water using the B3LYP level 6-311G(d,p) levels of theory. The theoretical computation allowed for the prediction and visualization of ionic interactions, which explained the complex's stability. The results of energy optimization showed that the Q-TPB complex is stable with a negative complexation energy. The obtained geometries showed that the boron (B-) and nitrogen (N+) in piperidine of the two molecules tetraphenylborate and quinine are close to each other, which makes it possible for ions to interact. The modest energy gap between HOMO and LUMO showed that the compound was stable. The computation of the electron transitions of the two models by density functional theory (TD-DFT) in the solvent at the theoretical level B3LYP/6-311G(d,p) allowed for the detection of three UV/visible absorption bands for both models and the discovery of a charge transfer between the host and the guest. The UV absorption, infrared, and H NMR are comparable with the experimental part.
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Affiliation(s)
- Tarek A. Yousef
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Haitham Alrabiah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Mohamed H. Al-Agamy
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Essam A. Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
| | - Gamal A. E. Mostafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia (R.A.-S.)
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8
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Nguyen HD, Jana RD, Campbell DT, Tran TV, Do LH. Lewis acid-driven self-assembly of diiridium macrocyclic catalysts imparts substrate selectivity and glutathione tolerance. Chem Sci 2023; 14:10264-10272. [PMID: 37772092 PMCID: PMC10530542 DOI: 10.1039/d3sc02836d] [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: 06/02/2023] [Accepted: 09/02/2023] [Indexed: 09/30/2023] Open
Abstract
Molecular inorganic catalysts (MICs) tend to have solvent-exposed metal centers that lack substrate specificity and are easily inhibited by biological nucleophiles. Unfortunately, these limitations exclude many MICs from being considered for in vivo applications. To overcome this challenge, a strategy to spatially confine MICs using Lewis acid-driven self-assembly is presented. It was shown that in the presence of external cations (e.g., Li+, Na+, K+, or Cs+) or phosphate buffered saline, diiridium macrocycles spontaneously formed supramolecular iridium-cation species, which were characterized by X-ray crystallography and dynamic light scattering. These nanoassemblies selectively reduced sterically unhindered C[double bond, length as m-dash]O groups via transfer hydrogenation and tolerated up to 1 mM of glutathione. In contrast, when non-coordinating tetraalkylammonium cations were used, the diiridium catalysts were unable to form higher-ordered structures and discriminate between different aldehyde substrates. This work suggests that in situ coordination self-assembly could be a versatile approach to enable or enhance the integration of MICs with biological hosts.
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Affiliation(s)
- Hieu D Nguyen
- Department of Chemistry, University of Houston 4800 Calhoun Road Houston Texas USA
| | - Rahul D Jana
- Department of Chemistry, University of Houston 4800 Calhoun Road Houston Texas USA
| | - Dylan T Campbell
- Department of Chemistry, University of Houston 4800 Calhoun Road Houston Texas USA
| | - Thi V Tran
- Department of Chemistry, University of Houston 4800 Calhoun Road Houston Texas USA
| | - Loi H Do
- Department of Chemistry, University of Houston 4800 Calhoun Road Houston Texas USA
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9
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Thaler R, Kopacka H, Wurst K, Müller T, Neururer FR, Hohloch S, Lippmann P, Ott I, Bildstein B. Clathrochelate Complexes Containing Axial Cymantrene and Tromancenium Moieties. Eur J Inorg Chem 2023; 26:e202300368. [PMID: 38505780 PMCID: PMC10947045 DOI: 10.1002/ejic.202300368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 06/28/2023] [Indexed: 03/21/2024]
Abstract
New clathrochelate complexes of manganese, iron and cobalt containing peripheral organometallic manganese moieties cymantrene or tromancenium were synthesized via self-assembly from di/tri-topic dioximes, metal templates and cymantrene/tromancenium boronic acid pinacol esters. These air-stable, highly colored, oligometallic complexes are composed of various combinations of MnIFeIIMnI, MnICoIIMnI, MnIMnIIMnIIMnI and MnICoIICoIIMnI metal assemblies with corresponding complicated magnetic and electrochemical properties. Full spectroscopic and structural characterization by 1H/11B/13C NMR, HRMS, IR, UV-vis, single crystal XRD and CV (cyclic voltammetry) is provided. Tetrametallic complexes containing tromanceniumyl substituents with two CoII or MnII central metals exhibit promising anticancer properties against different tumor cell lines.
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Affiliation(s)
- Reinhard Thaler
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Holger Kopacka
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Klaus Wurst
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Thomas Müller
- Institut für Organische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Florian R. Neururer
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Stephan Hohloch
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical ChemistryTechnische Universität BraunschweigBeethovenstr. 5538106BraunschweigGermany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical ChemistryTechnische Universität BraunschweigBeethovenstr. 5538106BraunschweigGermany
| | - Benno Bildstein
- Institut für Allgemeine, Anorganische und Theoretische ChemieUniversität InnsbruckInnrain 80–826020InnsbruckAustria
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Sucena SF, Demirer TI, Baitullina A, Hagenbach A, Grewe J, Spreckelmeyer S, März J, Barkleit A, Maia PIDS, Nguyen HH, Abram U. Gold-Based Coronands as Hosts for M 3+ Metal Ions: Ring Size Matters. Molecules 2023; 28:5421. [PMID: 37513293 PMCID: PMC10385047 DOI: 10.3390/molecules28145421] [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: 06/27/2023] [Revised: 07/10/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The controlled, self-assembled synthesis of multinuclear coordination compounds can be performed via different approaches. Frequently, steric, geometric and/or electronic factors located at the ligand systems predefine the way in which metal ions can assemble them to large aggregates. For the compounds in the present paper, also the Pearson's acidities and preferred coordination geometries of the metal ions were used as organization principles. The ligand under study, 2,6-dipicolinoylbis(N,N-diethylthiourea), H2L1ethyl, possesses 'soft' sulfur and 'hard' nitrogen and oxygen donors. One-pot reactions of this compound with [AuCl(tht)] (tht = tetrahydrothiophene) and M3+ salts (M = Sc, Y, La, Ln, Ga, In) give products with gold-based {Au3(L1ethyl)3}3+ or {Au2(L1ethyl)2}2+ coronands, which host central M3+ ions. The formation of such units is templated by the M3+ ions and the individual size of the coronand rings is dependent on the ionic radii of the central ions in a way that small ions such as Ga3+ form a [Ga⊂{Au2(L1ethyl)2}]+ assembly, while larger ions (starting from Sc3+/In3+) establish neutral [M⊂{Au3(L1ethyl)3}] units with nine-coordinate central ions.
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Affiliation(s)
- Suelen Ferreira Sucena
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Türkan Ilgin Demirer
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Anna Baitullina
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Adelheid Hagenbach
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Jacqueline Grewe
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Sarah Spreckelmeyer
- Department of Nuclear Medicine and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Juliane März
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstr. 400, 01328 Dresden, Germany
| | - Astrid Barkleit
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstr. 400, 01328 Dresden, Germany
| | - Pedro Ivo da Silva Maia
- Núcleo de Desenvolvimento de Compostos Bioativos (NDCBio), Universidade Federal do Triângulo Mineiro, Av. Dr. Randolfo Borges 1400, Uberaba 38025-440, MG, Brazil
| | - Hung Huy Nguyen
- Department of Inorganic Chemistry, VNU University of Science, 19 Le Thanh Tong, Hanoi 100000, Vietnam
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
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11
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d'Orchymont F, Holland JP. Asymmetric rotaxanes as dual-modality supramolecular imaging agents for targeting cancer biomarkers. Commun Chem 2023; 6:107. [PMID: 37264077 DOI: 10.1038/s42004-023-00906-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 05/17/2023] [Indexed: 06/03/2023] Open
Abstract
Dual-modality imaging agents featuring both a radioactive complex for positron emission tomography (PET) and a fluorophore for optical fluorescence imaging (OFI) are crucial tools for reinforcing clinical diagnosis and intraoperative surgeries. We report the synthesis and characterisation of bimodal mechanically interlocked rotaxane-based imaging agents, constructed via the cucurbit[6]uril CB[6]-mediated alkyne-azide 'click' reaction. Two synthetic routes involving four- or six-component reactions are developed to access asymmetric rotaxanes. Furthermore, by using this rapid and versatile approach, a peptide-based rotaxane targeted toward the clinical prostate cancer biomarker, prostate-specific membrane antigen (PSMA), and bearing a 68Ga-radiometal ion complex for positron emission tomography and fluorescein as an optically active imaging agent, was synthesised. The chemical and radiochemical stability, and the cellular uptake profile of the radiolabelled and fluorescent rotaxane was evaluated in vitro where the experimental data demonstrate the viability of using an asymmetric rotaxane platform to produce dual-modality imaging agents that specifically target prostate cancer cells.
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Affiliation(s)
- Faustine d'Orchymont
- University of Zurich, Department of Chemistry, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Jason P Holland
- University of Zurich, Department of Chemistry, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
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12
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Kukulin VI, Bibikov AV, Tkalya EV, Ceccarelli M, Bodrenko IV. 7Be and 22Na radionuclides for a new therapy for cancer. Biomol Concepts 2023; 14:bmc-2022-0028. [PMID: 38167297 DOI: 10.1515/bmc-2022-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/18/2023] [Indexed: 01/05/2024] Open
Abstract
10B isotopes have been almost exclusively used in the neutron-capture radiation therapy (NCT) of cancer for decades. We have identified two other nuclides suitable for radiotherapy, which have ca. ten times larger cross section of absorption for neutrons and emit heavy charged particles. This would provide several key advantages for potential NCT, such as the possibility to use a lower nuclide concentration in the target tissues or a lower neutron irradiation flux. By detecting the characteristic γ radiation from the spontaneous decay of the radionuclides, one can image their biodistribution. These advantages could open up new possibilities for NCT applications as a safer and more efficient cancer therapy.
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Affiliation(s)
- Vladimir I Kukulin
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskie gory, Moscow, Ru-119991, Russia
| | - Anton V Bibikov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskie gory, Moscow, Ru-119991, Russia
| | - Eugene V Tkalya
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, 53 Leninskiy pr., Moscow, Russia
- Nuclear Safety Institute of RAS, Bol'shaya Tulskaya 52, Moscow, 115191, Russia
| | - Matteo Ceccarelli
- Department of Physics, University of Cagliari, S.P. Monserrato-Sestu km 0.700, I-09042 Monserrato (CA), Italy
- Istituto Officina dei Materiali, CNR-IOM Cagliari, Cittadella Universitaria, Monserrato (CA) 09042-I, Italy
| | - Igor V Bodrenko
- Istituto Officina dei Materiali, CNR-IOM Cagliari, Cittadella Universitaria, Monserrato (CA) 09042-I, Italy
- Ecole Normale Sup´erieure, D´epartement de Chimie - Laboratoire PASTEUR, 24 Rue Lhomond, 75005 Paris, France
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Högbom M. Nobel symposium #168 Visions of bio-inorganic chemistry: metals and the molecules of life. FEBS Lett 2023; 597:3-5. [PMID: 36623847 DOI: 10.1002/1873-3468.14559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Martin Högbom
- Department of Biochemistry and Biophysics, Stockholm University, Sweden
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