1
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Solea AB, Demirci G, Harvey FM, Crochet A, Zobi F, Mamula Steiner O. The role of stereochemistry in the anticancer activity of Re(I) tricarbonyl complexes. Dalton Trans 2024; 53:13743-13755. [PMID: 39021254 DOI: 10.1039/d4dt01643b] [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: 07/20/2024]
Abstract
Cancer is a leading cause of death worldwide, accounting for about one among six deaths, so the quest for new and improved therapies is of crucial importance. The discovery of cisplatin as an anticancer agent has paved the way for the development of other metal-based therapeutic agents and Re(I)-based candidates have been recently found to show promising results. It is known as well that chirality plays a central role in the interactions of metal-based drugs with intrinsically chiral biomolecules such as membrane transport proteins or DNA. To further exploit this property, we have developed a series of diastereomeric dinuclear Re(I) complexes with chiral ligands containing pinene-bipyridine units. These complexes offer unique insights into the relation between stereochemistry and biological activity. Single-crystal X-ray diffraction studies, spectroscopic analysis, including UV-Vis and circular dichroism (CD), confirmed the chiral structures of these complexes. Biological activity assessments were carried out against various cancer cell lines, with a particular focus on breast and colon cancer. The diastereomers exhibited distinct anticancer activities, with some displaying promising results. Notably, one diastereomer showed exceptional cytotoxicity against HCT116 and MCF-7 cancer cells. This research underscores the significance of chirality in the design of novel anticancer agents, providing insights into the potential of dinuclear Re(I) complexes as effective candidates for cancer treatment.
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Affiliation(s)
- Atena B Solea
- University of Applied Sciences of Western Switzerland, HES-SO, HEIA-FR, Pérolles 80, CH-1705 Fribourg, Switzerland.
| | - Gozde Demirci
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Freya M Harvey
- University of Applied Sciences of Western Switzerland, HES-SO, HEIA-FR, Pérolles 80, CH-1705 Fribourg, Switzerland.
| | - Aurelien Crochet
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Fabio Zobi
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Olimpia Mamula Steiner
- University of Applied Sciences of Western Switzerland, HES-SO, HEIA-FR, Pérolles 80, CH-1705 Fribourg, Switzerland.
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2
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Patil M, Casari I, Thapa D, Warne LN, Dallerba E, Massi M, Carlessi R, Falasca M. Preclinical pharmacokinetics, pharmacodynamics, and toxicity of novel small-molecule GPR119 agonists to treat type-2 diabetes and obesity. Biomed Pharmacother 2024; 177:117077. [PMID: 38968799 DOI: 10.1016/j.biopha.2024.117077] [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: 04/23/2024] [Revised: 06/14/2024] [Accepted: 06/29/2024] [Indexed: 07/07/2024] Open
Abstract
The escalating global prevalence of type-2 diabetes (T2D) and obesity necessitates the development of novel oral medications. Agonism at G-protein coupled receptor-119 (GPR119) has been recognized for modulation of metabolic homeostasis in T2D, obesity, and fatty liver disease. However, off-target effects have impeded the advancement of synthetic GPR119 agonist drug candidates. Non-systemic, gut-restricted GPR119 agonism is suggested as an alternative strategy that may locally stimulate intestinal enteroendocrine cells (EEC) for incretin secretion, without the need for systemic drug availability, consequently alleviating conventional class-related side effects. Herein, we report the preclinical acute safety, efficacy, and pharmacokinetics (PK) of novel GPR119 agonist compounds ps297 and ps318 that potentially target gut EEC for incretin secretion. In a proof-of-efficacy study, both compounds demonstrated glucagon-like peptide-1 (GLP-1) secretion capability during glucose and mixed-meal tolerance tests in healthy mice. Furthermore, co-administration of sitagliptin with investigational compounds in diabetic db/db mice resulted in synergism, with GLP-1 concentrations rising by three-fold. Both ps297 and ps318 exhibited low gut permeability assessed in the in-vitro Caco-2 cell model. A single oral dose PK study conducted on healthy mice demonstrated poor systemic bioavailability of both agents. PK measures (mean ± SD) for compound ps297 (Cmax 23 ± 19 ng/mL, Tmax range 0.5 - 1 h, AUC0-24 h 19.6 ± 21 h*ng/mL) and ps318 (Cmax 75 ± 22 ng/mL, Tmax range 0.25 - 0.5 h, AUC0-24 h 35 ± 23 h*ng/mL) suggest poor oral absorption. Additionally, examinations of drug excretion patterns in mice revealed that around 25 % (ps297) and 4 % (ps318) of the drugs were excreted through faeces as an unchanged form, while negligible drug concentrations (<0.005 %) were excreted in the urine. These acute PK/PD assessments suggest the gut is a primary site of action for both agents. Toxicity assessments conducted in the zebrafish and healthy mice models confirmed the safety and tolerability of both compounds. Future chronic in-vivo studies in relevant disease models will be essential to confirm the long-term safety and efficacy of these novel compounds.
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Affiliation(s)
- Mohan Patil
- Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, Western Australia 6102, Australia
| | - Ilaria Casari
- Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, Western Australia 6102, Australia
| | - Dinesh Thapa
- Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, Western Australia 6102, Australia
| | - Leon N Warne
- Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, Western Australia 6102, Australia; College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
| | - Elena Dallerba
- School of Molecular and Life Sciences, Curtin University, Perth, Western Australia 6845, Australia
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Perth, Western Australia 6845, Australia
| | - Rodrigo Carlessi
- Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, Western Australia 6102, Australia; Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Marco Falasca
- Department of Medicine and Surgery, University of Parma, Parma 43125, Italy.
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3
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Vanucci-Bacqué C, Wolff M, Delavaux-Nicot B, Abdallah AM, Mallet-Ladeira S, Serpentini CL, Bedos-Belval F, Fong KW, Ng XY, Low ML, Benoist E, Fery-Forgues S. 1,2,3-Triazol-5-ylidene- vs. 1,2,3-triazole-based tricarbonylrhenium(I) complexes: influence of a mesoionic carbene ligand on the electronic and biological properties. Dalton Trans 2024; 53:11276-11294. [PMID: 38776120 DOI: 10.1039/d4dt00922c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The tricarbonylrhenium complexes that incorporate a mesoionic carbene ligand represent an emerging and promising class of molecules, the solid-state optical properties of which have rarely been investigated. The aim of this comprehensive study is to compare three of these complexes with their 1,2,3-triazole-based analogues. The Hirshfeld surface analysis of the crystallographic data revealed that the triazolylidene derivatives are more prone to π-π interactions than their 1,2,3-triazole-based counterparts. The FT-IR and electrochemical data indicated a stronger electron donor effect from the organic ligand to the rhenium atom for triazolylidene derivatives, which was confirmed by DFT calculations. All compounds were phosphorescent in solution, where the 1,2,3-triazole-based complexes showed unusually strong dependence on dissolved oxygen. All compounds also emitted in the solid state, some of them exhibited marked solid-state luminescence enhancement (SLE) effect. The 1,2,3-triazole based complex Re-Phe even displayed astounding photoluminescence efficiency with quantum yield up to 0.69, and proved to be an excellent candidate for applications linked to aggregation-induced emission (AIE). Interestingly, one triazolylidene-based complex (Re-T-BOP) showed attractive antibacterial activity. This study highlights the potential of these new molecules for applications in the fields of photoluminescent and therapeutic materials, and provides the first bases for the design of efficient molecules in these research areas.
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Affiliation(s)
- Corinne Vanucci-Bacqué
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Mariusz Wolff
- Institut für Funktionelle Materialien und Katalyse, Universität Wien, Währinger Straße 38-42, 1090 Wien, Österreich
- Institute of Chemistry, University of Silesia in Katowice, Szkolna 9th Street, 40-006 Katowice, Poland
| | - Béatrice Delavaux-Nicot
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Abanoub Mosaad Abdallah
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
- Narcotic Research Department, National Center for Social and Criminological Research (NCSCR), Giza 11561, Egypt
| | - Sonia Mallet-Ladeira
- Service Diffraction des Rayons X, Institut de Chimie de Toulouse, ICT-UAR 2599, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France
| | - Charles-Louis Serpentini
- Laboratoire SOFTMAT, CNRS UMR 5623, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France
| | - Florence Bedos-Belval
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Kar Wai Fong
- School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia
| | - Xiao Ying Ng
- School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia
| | - May Lee Low
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Eric Benoist
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Suzanne Fery-Forgues
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
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4
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Das S, Joshi P, Patra M. Necrosis-Inducing High-Valent Oxo-Rhenium(V) Complexes with Potent Antitumor Activity: Synthesis, Aquation Chemistry, Cisplatin Cross-Resistance Profile, and Mechanism of Action. Inorg Chem 2023; 62:19720-19733. [PMID: 37974075 DOI: 10.1021/acs.inorgchem.3c03110] [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: 11/19/2023]
Abstract
Chemotherapy with the cytotoxic platinum (Pt) drugs cisplatin, carboplatin, and oxaliplatin is the mainstay of anticancer therapy in the clinic. The antitumor activity of Pt drugs originates from their ability to induce apoptosis via covalent adduct formation with nuclear DNA. While the phenomenal clinical success is highly encouraging, resistance and adverse toxic side effects limit the wider applicability of Pt drugs. To circumvent these limitations, we embarked on an effort to explore the antitumor potential of a new class of oxo-rhenium(V) complexes of the type [(N∧N)(EG)Re(O)Cl] (where EG = ethylene glycolate and N∧N = bipyridine, Bpy (1); phenanthroline, Phen (2); 3,4,7,8-tetramethyl-phenanthroline, Me4Phen (3)). Investigation of speciation chemistry in aqueous media revealed the formation of [(N∧N)Re(O)(OH)3] as the biologically active species. Complex 3 was found to be the most potent among the three, with IC50 values ranging from 0.1 to 0.4 μM against a panel of cancer cells, which is 5-70-fold lower when compared with cisplatin. The higher potency of 3 is attributed to its higher lipophilicity, which enhanced cellular uptake. Importantly, complex 3 efficiently overcomes cisplatin resistance in ovarian, lung, and prostate cancer cells. In addition to reporting the aquation chemistry and identifying the active species in aqueous media, we performed in-depth in vitro mechanistic studies, which revealed that complex 3 preferentially accumulates in mitochondria, depletes mitochondrial membrane potential, and upregulates intracellular reactive oxygen species (ROS), leading to ER stress-mediated necrosis-mediated cancer cell death.
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Affiliation(s)
- Shubhangi Das
- Laboratory of Medicinal Chemistry and Cell Biology, Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Navy Nagar, 400005 Mumbai, India
| | - Pulkit Joshi
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Navy Nagar, 400005 Mumbai, India
| | - Malay Patra
- Laboratory of Medicinal Chemistry and Cell Biology, Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Navy Nagar, 400005 Mumbai, India
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5
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Nasiri Sovari S, Kolly I, Schindler K, Djuric A, Srdic-Rajic T, Crochet A, Pavic A, Zobi F. Synthesis, characterization, and in vivo evaluation of the anticancer activity of a series of 5- and 6-(halomethyl)-2,2'-bipyridine rhenium tricarbonyl complexes. Dalton Trans 2023; 52:6934-6944. [PMID: 36916301 DOI: 10.1039/d2dt04041g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
We report the synthesis, characterization, and in vivo evaluation of the anticancer activity of a series of 5- and 6-(halomethyl)-2,2'-bipyridine rhenium tricarbonyl complexes. The study was promoted in order to understand if the presence and position of a reactive halomethyl substituent on the diimine ligand system of fac-[Re(CO)3]+ species may be a key molecular feature for the design of active and non-toxic anticancer agents. Only compounds potentially able to undergo ligand-based alkylating reactions show significant antiproliferative activity against colorectal and pancreatic cell lines. Of the new species presented in this study, one compound (5-(chloromethyl)-2,2'-bipyridine derivative) shows significant inhibition of pancreatic tumour growth in vivo in zebrafish-Panc-1 xenografts. The complex is noticeably effective at 8 μM concentration, lower than its in vitro IC50 values, being also capable of inhibiting in vivo cancer cells dissemination.
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Affiliation(s)
- Sara Nasiri Sovari
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Isabelle Kolly
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Kevin Schindler
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Ana Djuric
- Department of experimental oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, Beograd, Republic of Serbia
| | - Tatjana Srdic-Rajic
- Department of experimental oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, Beograd, Republic of Serbia
| | - Aurelien Crochet
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Republic of Serbia.
| | - Fabio Zobi
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
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6
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Matlou ML, Malan FP, Nkadimeng S, McGaw L, Tembu VJ, Manicum ALE. Exploring the in vitro anticancer activities of Re(I) picolinic acid and its fluorinated complex derivatives on lung cancer cells: a structural study. J Biol Inorg Chem 2023; 28:29-41. [PMID: 36463538 DOI: 10.1007/s00775-022-01971-2] [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: 06/24/2022] [Accepted: 10/04/2022] [Indexed: 12/07/2022]
Abstract
Fifteen rhenium(I) tricarbonyl complexes of the form fac-[Re(N,O')(CO)3(X)], where N,O'-bidentate ligand = 2-picolinic acid (Pico); 3,5-difluoropyridine-2-carboxylic acid (Dfpc); 3-trifluoromethyl-pyridine-2-carboxylic acid (Tfpc) and X = H2O; pyrazole (Pz); pyridine (Py); imidazole (Im); and methanol (CH3OH) were synthesized using the '2 + 1' mixed ligand approach with an average yield of 84%. The complexes were characterized using the following spectroscopic techniques: IR, 1H and 13C NMR, UV/Vis, and single-crystal X-ray diffraction. The effect of the fluorine atoms on the backbone of the N,O'-bidentate ligand was investigated and a trend was noticed in the carbonyl stretching frequencies: with Pico < Tfpc < Dfpc. The in vitro biological screening on Vero (healthy mammalian), HeLa (cervical carcinoma) and A549 (lung cancer) cells revealed one toxic complex, fac-[Re(Pico)(CO)3(H2O)], with respective LC50 values of 9.0 ± 0.9, 15.8 ± 4.9 (SI = 0.570) and 20.9 ± 0.8 (SI = 0.430) μg/mL. As a result, it can be used as a positive control drug of toxicity.
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Affiliation(s)
- Mabu L Matlou
- Department of Chemistry, Tshwane University of Technology, P.O. Box X680, Pretoria, 0001, South Africa
| | - Frederick P Malan
- Department of Chemistry, University of Pretoria, 02 Lynnwood Road, Hatfield, Pretoria, 0001, South Africa
| | - Sanah Nkadimeng
- Department of Life and Consumer Sciences, University of South Africa, Private Bag X6, Florida Campus, Florida, 1710, South Africa
| | - Lyndy McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, University of Pretoria, Private Bag X04, Onderstepoort, 0110, South Africa
| | - Vuyelwa J Tembu
- Department of Chemistry, Tshwane University of Technology, P.O. Box X680, Pretoria, 0001, South Africa
| | - Amanda-Lee E Manicum
- Department of Chemistry, Tshwane University of Technology, P.O. Box X680, Pretoria, 0001, South Africa.
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7
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Neuditschko B, King AP, Huang Z, Janker L, Bileck A, Borutzki Y, Marker SC, Gerner C, Wilson JJ, Meier‐Menches SM. An Anticancer Rhenium Tricarbonyl Targets Fe-S Cluster Biogenesis in Ovarian Cancer Cells. Angew Chem Int Ed Engl 2022; 61:e202209136. [PMID: 36004624 PMCID: PMC9827826 DOI: 10.1002/anie.202209136] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/12/2023]
Abstract
Target identification remains a critical challenge in inorganic drug discovery to deconvolute potential polypharmacology. Herein, we describe an improved approach to prioritize candidate protein targets based on a combination of dose-dependent chemoproteomics and treatment effects in living cancer cells for the rhenium tricarbonyl compound TRIP. Chemoproteomics revealed 89 distinct dose-dependent targets with concentrations of competitive saturation between 0.1 and 32 μM despite the broad proteotoxic effects of TRIP. Target-response networks revealed two highly probable targets of which the Fe-S cluster biogenesis factor NUBP2 was competitively saturated by free TRIP at nanomolar concentrations. Importantly, TRIP treatment led to a down-regulation of Fe-S cluster containing proteins and upregulated ferritin. Fe-S cluster depletion was further verified by assessing mitochondrial bioenergetics. Consequently, TRIP emerges as a first-in-class modulator of the scaffold protein NUBP2, which disturbs Fe-S cluster biogenesis at sub-cytotoxic concentrations in ovarian cancer cells.
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Affiliation(s)
- Benjamin Neuditschko
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Institute of Inorganic ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Present address: Institute Krems BioanalyticsIMC University of Applied Sciences Krems3500KremsAustria
| | - A. Paden King
- Department of Chemistry and Chemical BiologyCornell UniversityIthacaNY 14853USA,Present address: Chemical Biology LaboratoryCenter for Cancer ResearchNational Cancer InstituteFrederickMD 21702USA
| | - Zhouyang Huang
- Department of Chemistry and Chemical BiologyCornell UniversityIthacaNY 14853USA
| | - Lukas Janker
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Joint Metabolome FacilityUniversity of Vienna and Medical University Vienna1090ViennaAustria
| | - Andrea Bileck
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Joint Metabolome FacilityUniversity of Vienna and Medical University Vienna1090ViennaAustria
| | - Yasmin Borutzki
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Institute of Inorganic ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria
| | - Sierra C. Marker
- Department of Chemistry and Chemical BiologyCornell UniversityIthacaNY 14853USA,Present address: Chemical Biology LaboratoryCenter for Cancer ResearchNational Cancer InstituteFrederickMD 21702USA
| | - Christopher Gerner
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Joint Metabolome FacilityUniversity of Vienna and Medical University Vienna1090ViennaAustria
| | - Justin J. Wilson
- Department of Chemistry and Chemical BiologyCornell UniversityIthacaNY 14853USA
| | - Samuel M. Meier‐Menches
- Department of Analytical ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Institute of Inorganic ChemistryFaculty of ChemistryUniversity of Vienna1090ViennaAustria,Joint Metabolome FacilityUniversity of Vienna and Medical University Vienna1090ViennaAustria
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8
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Antimicrobial Activity of Rhenium Di- and Tricarbonyl Diimine Complexes: Insights on Membrane-Bound S. aureus Protein Binding. Pharmaceuticals (Basel) 2022; 15:ph15091107. [PMID: 36145328 PMCID: PMC9501577 DOI: 10.3390/ph15091107] [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: 08/04/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial resistance is one of the major human health threats, with significant impacts on the global economy. Antibiotics are becoming increasingly ineffective as drug-resistance spreads, imposing an urgent need for new and innovative antimicrobial agents. Metal complexes are an untapped source of antimicrobial potential. Rhenium complexes, amongst others, are particularly attractive due to their low in vivo toxicity and high antimicrobial activity, but little is known about their targets and mechanism of action. In this study, a series of rhenium di- and tricarbonyl diimine complexes were prepared and evaluated for their antimicrobial potential against eight different microorganisms comprising Gram-negative and -positive bacteria. Our data showed that none of the Re dicarbonyl or neutral tricarbonyl species have either bactericidal or bacteriostatic potential. In order to identify possible targets of the molecules, and thus possibly understand the observed differences in the antimicrobial efficacy of the molecules, we computationally evaluated the binding affinity of active and inactive complexes against structurally characterized membrane-bound S. aureus proteins. The computational analysis indicates two possible major targets for this class of compounds, namely lipoteichoic acids flippase (LtaA) and lipoprotein signal peptidase II (LspA). Our results, consistent with the published in vitro studies, will be useful for the future design of rhenium tricarbonyl diimine-based antibiotics.
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9
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Neuditschko B, King AP, Huang Z, Janker L, Bileck A, Borutzki Y, Marker SC, Gerner C, Wilson JJ, Meier-Menches SM. An Anticancer Rhenium Tricarbonyl Targets Fe‐S Cluster Biogenesis in Ovarian Cancer Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Benjamin Neuditschko
- University of Vienna: Universitat Wien Department of Analytical Chemistry AUSTRIA
| | - A. Paden King
- Cornell University Department of Chemistry and Chemical Biology UNITED STATES
| | - Zhouyang Huang
- Cornell University Department of Chemistry and Chemical Biology UNITED STATES
| | - Lukas Janker
- University of Vienna Faculty of Chemistry: Universitat Wien Fakultat fur Chemie Department of Analytical Chemistry AUSTRIA
| | - Andrea Bileck
- University of Vienna: Universitat Wien Department of Analytical Chemistry AUSTRIA
| | - Yasmin Borutzki
- University of Vienna: Universitat Wien Institute of Inorganic Chemistry AUSTRIA
| | - Sierra C. Marker
- Cornell University Department of Chemistry and Chemical Biology UNITED STATES
| | - Christopher Gerner
- University of Vienna: Universitat Wien Department of Analytical Chemistry AUSTRIA
| | - Justin J. Wilson
- Cornell University Department of Chemistry and Chemical Biology UNITED STATES
| | - Samuel M. Meier-Menches
- University of Vienna: Universitat Wien Department of Analytical Chemistry Waehringer Str. 38 1090 Vienna AUSTRIA
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10
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Guo W, Ji T, Deng Y, Liu J, Gou Y, Dong W. Facile synthesis of a glutathione-depleting Cu(II)-half-salamo-based coordination polymer for enhanced chemodynamic therapy. Dalton Trans 2022; 51:11884-11891. [PMID: 35876194 DOI: 10.1039/d2dt01786e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chemodynamic therapy (CDT), utilizing Fenton catalysts to convert intracellular H2O2 into toxic hydroxyl radicals (˙OH) to kill cancer cells, has a wide application prospect in tumor treatment because of its high selectivity. Its anticancer effect, however, is unsatisfactory due to the overexpressed glutathione (GSH). Herein, a GSH-depleting Cu(II)-half-salamo-based coordination polymer (CuCP) was prepared and validated by single crystal X-ray crystallography, Hirshfeld surface analyses and DFT calculations. The Cu(II) ions in the coordination polymer are five-coordinated bearing slightly twisted square pyramidal coordination environments and are bridged by phenoxy and alkoxy groups. After internalization by tumor cells, the CuCP could be biodegraded and reduced by GSH to generate a large amount of Cu(I), simultaneously depleting GSH. Subsequently, the Cu(I) ions interact with H2O2 to generate toxic ˙OH through a Fenton-like reaction to enhance their anticancer efficacy. Our study provides useful insights into designing smarter metal-based anticancer agents to improve the CDT efficiency in cancer therapy.
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Affiliation(s)
- Wenting Guo
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
| | - Tongxi Ji
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
| | - Yunhu Deng
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
| | - Jia Liu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
| | - Yantong Gou
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
| | - Wenkui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
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11
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Schindler K, Zobi F. Anticancer and Antibiotic Rhenium Tri- and Dicarbonyl Complexes: Current Research and Future Perspectives. Molecules 2022; 27:539. [PMID: 35056856 PMCID: PMC8777860 DOI: 10.3390/molecules27020539] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 01/12/2022] [Indexed: 12/20/2022] Open
Abstract
Organometallic compounds are increasingly recognized as promising anticancer and antibiotic drug candidates. Among the transition metal ions investigated for these purposes, rhenium occupies a special role. Its tri- and dicarbonyl complexes, in particular, attract continuous attention due to their relative ease of preparation, stability and unique photophysical and luminescent properties that allow the combination of diagnostic and therapeutic purposes, thereby permitting, e.g., molecules to be tracked within cells. In this review, we discuss the anticancer and antibiotic properties of rhenium tri- and dicarbonyl complexes described in the last seven years, mainly in terms of their structural variations and in vitro efficacy. Given the abundant literature available, the focus is initially directed on tricarbonyl complexes of rhenium. Dicarbonyl species of the metal ion, which are slowly gaining momentum, are discussed in the second part in terms of future perspective for the possible developments in the field.
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Affiliation(s)
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin du Musée 9, 1700 Fribourg, Switzerland;
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Wiratpruk N, Bindra G, Hamilton A, Hulett M, Barnard P. Anticancer Properties of Rhenium(I) Tricarbonyl Complexes of N-Heterocyclic Carbene Ligands. Dalton Trans 2022; 51:7630-7643. [DOI: 10.1039/d2dt00447j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family of eight rhenium(I) tricarbonyl complexes bearing pyridyl-imidazolylidene or bis-imidazolylidene ligand in combination with a series of N-acetyl amino acids ligands (glycine, isoleucine, proline) and acetate have been synthesised...
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Ye RR, Chen BC, Lu JJ, Ma XR, Li RT. Phosphorescent rhenium(I) complexes conjugated with artesunate: Mitochondrial targeting and apoptosis-ferroptosis dual induction. J Inorg Biochem 2021; 223:111537. [PMID: 34273716 DOI: 10.1016/j.jinorgbio.2021.111537] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/24/2021] [Accepted: 07/05/2021] [Indexed: 12/22/2022]
Abstract
Cell death is essential for cancer, which can be induced through multiple mechanisms. Ferroptosis, a newly emerging form of non-apoptotic cell death, involves the generation of iron-dependent reactive oxygen species (ROS). In this study, we designed and synthesized two artesunate (ART) conjugated phosphorescent rhenium(I) complexes (Re(I)-ART conjugates), [Re(N^N)(CO)3(PyCH2OART)](PF6) (Re-ART-1 and Re-ART-2) (Py = pyridine, N^N = 1,10-phenanthroline (phen, in Re-ART-1) and 4,7-diphenyl-1,10-phenanthroline (DIP, in Re-ART-2)) that can specifically locate in the mitochondria of human cervical carcinoma (HeLa). Mechanism studies show that Re-ART-1 and Re-ART-2 exhibit high cytotoxicity against cancer cells lines and can induce both apoptosis and ferroptosis in HeLa cells through mitochondrial damage, caspase cascade, glutathione (GSH) depletion, glutathione peroxidase 4 (GPX4) inactivation and lipid peroxidation accumulation. As a result, this work presents the rational design of Re(I)-ART conjugates as a promising strategy to induce both apoptosis and ferroptosis and improve therapeutic efficiency of cancer treatment.
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Affiliation(s)
- Rui-Rong Ye
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China.
| | - Bi-Chun Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China
| | - Jun-Jian Lu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China
| | - Xiu-Rong Ma
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China.
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