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Montesdeoca N, Borkar RL, Sathiyendiran M, Karges J. Dinuclear Rhenium(I) Tricarbonyl Complexes as Anticancer Drug Candidates. Chemistry 2024:e202400217. [PMID: 38574234 DOI: 10.1002/chem.202400217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/28/2024] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
Cancer is one of the deadliest diseases worldwide. Chemotherapy remains one of the most dominant forms for anticancer treatment. Despite their clinical success, the used chemotherapeutic agents are associated with severe side effect and pharmacological limitations. To overcome these drawbacks there is a need for the development of new types of chemotherapeutic agents. Herein, the chemical synthesis and biological evaluation of dinuclear rhenium(I) complexes as potential chemotherapeutic drug candidates are proposed. The metal complexes were found to be internalized by an energy dependent endocytosis pathway, primary accumulating in the mitochondria. The rhenium(I) complexes demonstrated to induce cell death against a variety of cancer cells in the micromolar range through apoptosis. The lead compound showed to eradicate a pancreatic carcinoma multicellular tumor spheroid at micromolar concentrations.
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Affiliation(s)
- Nicolás Montesdeoca
- Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Reema L Borkar
- School of Chemistry, University of Hyderabad, Hyderabad, 500 046, India
| | | | - Johannes Karges
- Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
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2
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Kolliyedath G, Sahana T, Johnson SM, Kundu S. Synergistic Activation of Nitrite and Thiocarbonyl Compounds Affords NO and Sulfane Sulfur via (Per)thionitrite (SNO - /SSNO - ). Angew Chem Int Ed Engl 2023; 62:e202313187. [PMID: 37856704 DOI: 10.1002/anie.202313187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 10/21/2023]
Abstract
(Per)thionitrite (SNO- /SSNO- ) intermediates play vital roles in modulating nitric oxide (NO) and hydrogen sulfide (H2 S) dependent bio-signalling processes. Whilst the previous preparations of such intermediates involved reactive H2 S/HS- or sulfane sulfur (S0 ) species, the present report reveals that relatively stable thiocarbonyl compounds (such as carbon disulfide (CS2 ), thiocarbamate, thioacetic acid, and thioacetate) react with nitrite anion to yield SNO- /SSNO- . For instance, the reaction of CS2 and nitrite anion (NO2 - ) under ambient condition affords CO2 and SNO- /SSNO- . A detailed investigation involving UV/Vis, FTIR, HRMS, and multinuclear NMR studies confirm the formation of SNO- /SSNO- , which are proposed to form through an initial nucleophilic attack by nitrite anion followed by a transnitrosation step. Notably, reactions of CS2 and nitrite in the presence of thiol RSH show the formation of organic polysulfides R-Sn -R, thereby illustrating that the thiocarbonyls are capable of influencing the pool of bioavailable sulfane sulfurs. Furthermore, the availability of both NO2 - and thiocarbonyl motifs in the biological context hints at their synergistic metal-free activations leading to the generation of NO gas and various reactive sulfur species via SNO- /SSNO- .
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Affiliation(s)
- Gayathri Kolliyedath
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
| | - Tuhin Sahana
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
| | - Silpa Mary Johnson
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
| | - Subrata Kundu
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
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3
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Anju BS, Nair NR, Kundu S. Nitrite and Nitric Oxide Interconversion at Mononuclear Copper(II): Insight into the Role of the Red Copper Site in Denitrification. Angew Chem Int Ed Engl 2023; 62:e202311523. [PMID: 37800603 DOI: 10.1002/anie.202311523] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/07/2023]
Abstract
Nitrite (NO2 - ) and nitric oxide (NO) interconversion is crucial for maintaining optimum NO flux in mammalian physiology. Herein we demonstrate that [L2 CuII (nitrite)]+ moieties (in 2 a and 2 b; where, L = Me2 PzPy and Me2 PzQu) with distorted octahedral geometry undergo facile reduction to provide tetrahedral [L2 CuI ]+ (in 3 a and 3 b) and NO in the presence of biologically relevant reductants, such as 4-methoxy-2,6-di-tert-butylphenol (4-MeO-2,6-DTBP, a tyrosine model) and N-benzyl-1,4-dihydronicotinamide (BNAH, a NAD(P)H model). Interestingly, the reaction of excess NO gas with [L2 CuII (MeCN)2 ]2+ (in 1 a) provides a putative {CuNO}10 species, which is effective in mediating the nitrosation of various nucleophiles, such as thiol and amine. Generation of the transient {CuNO}10 species in wet acetonitrile leads to NO2 - as assessed by Griess assay and 14 N/15 N-FTIR analyses. A detailed study reveals that the bidirectional NOx -reactivity, namely, nitrite reductase (NIR) and NO oxidase (NOO), at a common CuII site, is governed by the geometric-preference-driven facile CuII /CuI redox process. Of broader interest, this study not only highlights potential strategies for the design of copper-based catalysts for nitrite reduction, but also strengthens the previous postulates regarding the involvement of red copper proteins in denitrification.
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Affiliation(s)
- Balakrishnan S Anju
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
| | - Neeraja R Nair
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
| | - Subrata Kundu
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-Tvm) Thiruvananthapuram, 695551, Kerala, India
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4
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Kastner A, Schueffl H, Yassemipour PA, Keppler BK, Heffeter P, Kowol CR. Insertion of (Bioactive) Equatorial Ligands into Platinum(IV) Complexes. Angew Chem Int Ed Engl 2023; 62:e202311468. [PMID: 37703130 PMCID: PMC10952260 DOI: 10.1002/anie.202311468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 09/15/2023]
Abstract
Platinum(IV) prodrugs are highly interesting alternatives to platinum(II) anticancer therapeutics due to their increased tumor selectivity and reduced side effects. In contrast to the established theory, we recently observed that the equatorial ligand(s) of e.g. oxaliplatin(IV) complexes can be hydrolyzed with formation of [(DACH)Pt(OHeq )2 (OAcax )2 ]. In the work presented here, we investigated the reactivity and synthetic usability of this complex to be exploited as a precursor for the development of novel platinum(IV) complexes, not able to be synthesized by conventional protocols. Indeed, we could substitute the equatorial hydroxido ligand(s) e.g. by one or two monodentate biotin ligands (which would be oxidized under standard methods). The formed complexes turned out to be very stable with slow ligand release after reduction, ideal for long-circulating tumor-targeting strategies. Therefore, two platinum(IV) complexes with equatorial maleimides, capable of exploiting serum albumin as a natural nanocarrier, were synthesized as well. The complexes showed massively prolonged plasma half-life and distinctly improved anticancer activity in vivo compared to oxaliplatin. Taken together, the newly developed synthetic platform allows the simple and specific insertion of equatorial ligands into platinum(IV) complexes. This will enable the attachment of three different (bioactive) moieties generating targeted triple-action platinum(IV) prodrugs within one single platinum complex.
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Affiliation(s)
- Alexander Kastner
- University of ViennaFaculty of ChemistryInstitute of Inorganic ChemistryWaehringer Str. 421090ViennaAustria
- University of ViennaVienna Doctoral School in Chemistry (DoSChem)Waehringer Str. 421090ViennaAustria
| | - Hemma Schueffl
- Center for Cancer Research and Comprehensive Cancer CenterMedical University of ViennaBorschkegasse 8a1090ViennaAustria
| | - Patrick A. Yassemipour
- University of ViennaFaculty of ChemistryInstitute of Inorganic ChemistryWaehringer Str. 421090ViennaAustria
| | - Bernhard K. Keppler
- University of ViennaFaculty of ChemistryInstitute of Inorganic ChemistryWaehringer Str. 421090ViennaAustria
- Research Cluster “Translational Cancer Therapy Research”1090ViennaAustria
| | - Petra Heffeter
- Center for Cancer Research and Comprehensive Cancer CenterMedical University of ViennaBorschkegasse 8a1090ViennaAustria
- Research Cluster “Translational Cancer Therapy Research”1090ViennaAustria
| | - Christian R. Kowol
- University of ViennaFaculty of ChemistryInstitute of Inorganic ChemistryWaehringer Str. 421090ViennaAustria
- Research Cluster “Translational Cancer Therapy Research”1090ViennaAustria
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5
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James CC, de Bruin B, Reek JNH. Transition Metal Catalysis in Living Cells: Progress, Challenges, and Novel Supramolecular Solutions. Angew Chem Int Ed Engl 2023; 62:e202306645. [PMID: 37339103 DOI: 10.1002/anie.202306645] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/20/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023]
Abstract
The importance of transition metal catalysis is exemplified by its wide range of applications, for example in the synthesis of chemicals, natural products, and pharmaceuticals. However, one relatively new application is for carrying out new-to-nature reactions inside living cells. The complex environment of a living cell is not welcoming to transition metal catalysts, as a diverse range of biological components have the potential to inhibit or deactivate the catalyst. Here we review the current progress in the field of transition metal catalysis, and evaluation of catalysis efficiency in living cells and under biological (relevant) conditions. Catalyst poisoning is a ubiquitous problem in this field, and we propose that future research into the development of physical and kinetic protection strategies may provide a route to improve the reactivity of catalysts in cells.
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Affiliation(s)
- Catriona C James
- van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Joost N H Reek
- van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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Liang G, Sadhukhan T, Banerjee S, Tang D, Zhang H, Cui M, Montesdeoca N, Karges J, Xiao H. Reduction of Platinum(IV) Prodrug Hemoglobin Nanoparticles with Deeply-Penetrating Ultrasound Radiation for Tumor-Targeted Therapeutically Enhanced Anticancer Therapy. Angew Chem Int Ed Engl 2023; 62:e202301074. [PMID: 36961095 DOI: 10.1002/anie.202301074] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/25/2023]
Abstract
The development of PtIV prodrugs that are reduced into the therapeutically active PtII species within the tumor microenvironment has received much research interest. In order to provide spatial and temporal control over the treatment, there is a high demand for the development of compounds that could be selectively activated upon irradiation. Despite recent progress, the majority of PtIV complexes are excited with ultraviolet or blue light, limiting the use of such compounds for superficial application. To overcome this limitation, herein, the first example of PtIV prodrug nanoparticles that could be reduced with deeply penetrating ultrasound radiation is reported, enabling the treatment of deep-seated or large tumors. The nanoparticles were found to selectively accumulate inside a mouse colon carcinoma tumor upon intravenous injection as well as able to eradicate the tumor upon exposure to ultrasound radiation.
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Affiliation(s)
- Ganghao Liang
- Chinese Academy of Sciences, Institute of Chemistry, CHINA
| | - Tumpa Sadhukhan
- SRM Institute of Science and Technology (Deemed to be University), Department of Chemistry, INDIA
| | - Samya Banerjee
- Indian Institute of Technology Banaras Hindu University: Indian Institute of Technology BHU Varanasi, Department of Chemistry, INDIA
| | - Dongsheng Tang
- Chinese Academy of Sciences, Institute of Chemistry, CHINA
| | - Hanchen Zhang
- Chinese Academy of Sciences, Institute of Chemistry, CHINA
| | - Minhui Cui
- Chinese Academy of Sciences, Institute of Chemistry, CHINA
| | - Nicolás Montesdeoca
- Ruhr-Universität Bochum: Ruhr-Universitat Bochum, Faculty of Chemistry and Biochemistry, GERMANY
| | - Johannes Karges
- Ruhr University Bochum: Ruhr-Universitat Bochum, Chemistry and Biochemistry, Universitätsstrasse 150, 44780, Bochum, GERMANY
| | - Haihua Xiao
- Chinese Academy of Sciences, Institute of Chemistry, CHINA
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Mani A, Feng T, Gandioso A, Vinck R, Notaro A, Gourdon L, Burckel P, Saubaméa B, Blacque O, Cariou K, Belgaied JE, Chao H, Gasser G. Structurally Simple Osmium(II) Polypyridyl Complexes as Photosensitizers for Photodynamic Therapy in the Near Infrared. Angew Chem Int Ed Engl 2023; 62:e202218347. [PMID: 36917074 DOI: 10.1002/anie.202218347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/15/2023]
Abstract
Five osmium(II) polypyridyl complexes of the general formula [Os(4,7-diphenyl-1,10phenanthroline)2L]2+ were synthesized as photosensitizers for photodynamic therapy by varying the nature of the ligand L. Thanks to the pronounced π-extended structure of the ligands and the heavy atom effect provided by the osmium center, these complexes exhibit a high absorption in the near infrared (NIR) region (up to 740 nm), unlike related ruthenium complexes. This led to promising phototoxicity in vitro against cancer cells cultured as 2D cell layers but also in multicellular tumor spheroids upon irradiation at 740 nm. The complex [Os(4,7-diphenyl-1,10-phenanthroline)2(2,2'-bipyridine)]2+ was found to be the most efficient against various cancer cell lines, with high phototoxicity indexes. Experiments on CT26 tumorbearing BALB/c mice also indicate that the Os(II) complexes could significantly reduce tumor growth under 740 nm laser irradiation. The high phototoxicity in the biological window of this structurally simple complex makes it a promising photosensitizer for cancer treatment.
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Affiliation(s)
- Asma Mani
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris, Institute of Chemistry for Life and Health Sciences, FRANCE
| | - Tao Feng
- Sun Yat-Sen University, MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, CHINA
| | - Albert Gandioso
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris, Institute of Chemistry for Life and Health Sciences, FRANCE
| | - Robin Vinck
- PSL University: Universite PSL, Chimie ParisTech, FRANCE
| | - Anna Notaro
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris, Institute of Chemistry for Life and Health Sciences, FRANCE
| | - Lisa Gourdon
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris, Institue of Chemistry for Life and Health Sciences, FRANCE
| | - Pierre Burckel
- University of Paris: Universite Paris Cite, Institut de physique du globe de Paris, FRANCE
| | - Bruno Saubaméa
- Université de Paris: Universite Paris Cite, Faculté de Pharmacie de Paris, FRANCE
| | - Olivier Blacque
- University of Zurich: Universitat Zurich, Department of Chemistry, SWITZERLAND
| | - Kevin Cariou
- PSL University: Universite PSL, Chimie ParisTech, FRANCE
| | - Jamel-Eddine Belgaied
- Universite de Carthage, National Institute of Applied Sciences and Technology, TUNISIA
| | - Hui Chao
- Sun Yat-Sen University, School of Chemistry, CHINA
| | - Gilles Gasser
- Universite PSL, Chimie ParisTech, 11, rue Pierre et Marie Curie, 75005, Paris, FRANCE
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8
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Battistella B, Lohmiller T, Cula B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. A New Thiolate-Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib Ribonucleotide Reductases. Angew Chem Int Ed Engl 2023; 62:e202217076. [PMID: 36583430 DOI: 10.1002/anie.202217076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
In class Ib ribonucleotide reductases (RNRs) a dimanganese(II) cluster activates superoxide (O2 ⋅- ) rather than dioxygen (O2 ), to access a high valent MnIII -O2 -MnIV species, responsible for the oxidation of tyrosine to tyrosyl radical. In a biomimetic approach, we report the synthesis of a thiolate-bound dimanganese complex [MnII 2 (BPMT)(OAc)2 ](ClO)4 (BPMT=(2,6-bis{[bis(2-pyridylmethyl)amino]methyl}-4-methylthiophenolate) (1) and its reaction with O2 ⋅- to form a [(BPMT)MnO2 Mn]2+ complex 2. Resonance Raman investigation revealed the presence of an O-O bond in 2, while EPR analysis displayed a 16-line St =1/2 signal at g=2 typically associated with a MnIII MnIV core, as detected in class Ib RNRs. Unlike all other previously reported Mn-O2 -Mn complexes, generated by O2 ⋅- activation at Mn2 centers, 2 proved to be a capable electrophilic oxidant in aldehyde deformylation and phenol oxidation reactions, rendering it one of the best structural and functional models for class Ib RNRs.
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Affiliation(s)
- Beatrice Battistella
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 16, 12489, Berlin, Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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9
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Kass D, Yao S, Krause KB, Corona T, Richter L, Braun T, Mebs S, Haumann M, Dau H, Lohmiller T, Limberg C, Drieß M, Ray K. Spectroscopic Properties of a Biologically Relevant [Fe 2 (μ-O) 2 ] Diamond Core Motif with a Short Iron-Iron Distance. Angew Chem Int Ed Engl 2023; 62:e202209437. [PMID: 36541062 DOI: 10.1002/anie.202209437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Diiron cofactors in enzymes perform diverse challenging transformations. The structures of high valent intermediates (Q in methane monooxygenase and X in ribonucleotide reductase) are debated since Fe-Fe distances of 2.5-3.4 Å were attributed to "open" or "closed" cores with bridging or terminal oxido groups. We report the crystallographic and spectroscopic characterization of a FeIII 2 (μ-O)2 complex (2) with tetrahedral (4C) centres and short Fe-Fe distance (2.52 Å), persisting in organic solutions. 2 shows a large Fe K-pre-edge intensity, which is caused by the pronounced asymmetry at the TD FeIII centres due to the short Fe-μ-O bonds. A ≈2.5 Å Fe-Fe distance is unlikely for six-coordinate sites in Q or X, but for a Fe2 (μ-O)2 core containing four-coordinate (or by possible extension five-coordinate) iron centres there may be enough flexibility to accommodate a particularly short Fe-Fe separation with intense pre-edge transition. This finding may broaden the scope of models considered for the structure of high-valent diiron intermediates formed upon O2 activation in biology.
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Affiliation(s)
- Dustin Kass
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Shenglai Yao
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany
| | - Konstantin B Krause
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Teresa Corona
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Liza Richter
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Braun
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Stefan Mebs
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Michael Haumann
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 16, 12489, Berlin, Germany
| | - Christian Limberg
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Matthias Drieß
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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10
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Steinbrueck A, Karges J. Metal Complexes and Nanoparticles for Photoacoustic Imaging. Chembiochem 2023:e202300079. [PMID: 36853559 DOI: 10.1002/cbic.202300079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/01/2023]
Abstract
Clinical imaging techniques are widely used to detect, locate, and track the growth or shrinkage of cancerous tumors. Although these techniques have shown impressive results, they often come with health risks due to the use of toxic contrast agents or ionizing radiation. To address these limitations, research efforts have been focused on the development of new imaging techniques. Among the emerging medicinal methods, photoacoustic imaging is receiving much attention. This method effectively combines the most important benefits of both ultrasound and fluorescence imaging, while minimizing their respective drawbacks via a light-in and ultrasound-out approach. This review article focuses on the fundamental concept, recent advancements, and strategies for novel contrast agents based on molecular metal complexes or metallic nanoparticles for use in photoacoustic imaging.
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Affiliation(s)
- Axel Steinbrueck
- Ruhr University Bochum: Ruhr-Universitat Bochum, Chemistry and Biochemistry, GERMANY
| | - Johannes Karges
- Ruhr University Bochum: Ruhr-Universitat Bochum, Chemistry and Biochemistry, Universitätsstrasse 150, 44780, Bochum, GERMANY
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11
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Zhang L, Montesdeoca N, Karges J, Xiao H. Immunogenic Cell Death Inducing Metal Complexes for Cancer Therapy. Angew Chem Int Ed Engl 2023; 62:e202300662. [PMID: 36807420 DOI: 10.1002/anie.202300662] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 02/23/2023]
Abstract
Cancer is one of the deadliest diseases worldwide. Recent statistics have shown that metastases and tumor relapse are the leading causes of cancer-associated deaths. While traditional treatments are able to efficiently remove the primary tumor, secondary tumors remain poorly accessible. Capitalizing on this there is an urgent need for novel treatment modalities. Among the most promising approaches, increasing research interest has been devoted to immunogenic cell death inducing agents that are able to trigger localized cell death of the cancer cells as well as induce an immune response inside the whole organism. Preliminary studies have shown that immunogenic cell death inducing compounds could be able to overcome metastatic and relapsing tumors. Herein, the application of metal complexes as immunogenic cell death inducing compounds is systematically reviewed.
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Affiliation(s)
- Lingpu Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, China
| | - Nicolás Montesdeoca
- Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Johannes Karges
- Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Haihua Xiao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, China
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12
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Huang Z, MacMillan SN, Wilson JJ. A Fluorogenic Inhibitor of the Mitochondrial Calcium Uniporter. Angew Chem Int Ed Engl 2023; 62:e202214920. [PMID: 36515400 PMCID: PMC9892296 DOI: 10.1002/anie.202214920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/15/2022]
Abstract
Inhibitors of the mitochondrial calcium uniporter (MCU) are valuable tools for studying the role of mitochondrial Ca2+ in various pathophysiological conditions. In this study, a new fluorogenic MCU inhibitor, RuOCou, is presented. This compound is an analogue of the known MCU inhibitor Ru265 that contains fluorescent axial coumarin carboxylate ligands. Upon aquation of RuOCou and release of the axial coumarin ligands, a simultaneous increase in its MCU-inhibitory activity and fluorescence intensity is observed. The fluorescence response of this compound enabled its aquation to be monitored in both HeLa cell lysates and live HeLa cells. This fluorogenic prodrug represents a potential theranostic MCU inhibitor that can be leveraged for the treatment of human diseases related to MCU activity.
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Affiliation(s)
- Zhouyang Huang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Samantha N MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
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13
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Mondal P, Ishigami I, Yeh SR, Wijeratne GB. The Role of Heme Peroxo Oxidants in the Rational Mechanistic Modeling of Nitric Oxide Synthase: Characterization of Key Intermediates and Elucidation of the Mechanism. Angew Chem Int Ed Engl 2022; 61:e202211521. [PMID: 36169890 PMCID: PMC9675724 DOI: 10.1002/anie.202211521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Indexed: 11/08/2022]
Abstract
Mammalian nitric oxide synthase (NOS) mediates the two-step O2 -dependent oxidative degradation of arginine, and has been linked to a medley of disease situations in humans. Nonetheless, its exact mechanism of action still remains unclear. This work presents the first NOS model system where biologically proposed heme superoxo and peroxo intermediates are assessed as active oxidants against oxime substrates. Markedly, heme peroxo intermediates engaged in a bioinspired oxime oxidation reaction pathway, converting oximes to ketones and nitroxyl anions (NO- ). Detailed thermodynamic, kinetic, and mechanistic interrogations all evince a rate-limiting step primarily driven by the nucleophilicity of the heme peroxo moiety. Coherent with other findings, 18 O and 15 N isotope substitution experiments herein suffice compelling evidence toward a detailed mechanism, which draw close parallels to one of the enzymatic proposals. Intriguingly, recent enzymatic studies also lend credence to these findings, and several relevant reaction intermediates have been observed during NOS turnover.
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Affiliation(s)
- Pritam Mondal
- Department of Chemistry and O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35205, USA
| | - Izumi Ishigami
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, The Bronx, NY 10461, USA
| | - Syun-Ru Yeh
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, The Bronx, NY 10461, USA
| | - Gayan B Wijeratne
- Department of Chemistry and O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35205, USA
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14
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Kim Y, Sridharan A, Suess DLM. The Elusive Mononitrosylated [Fe 4 S 4 ] Cluster in Three Redox States. Angew Chem Int Ed Engl 2022; 61:e202213032. [PMID: 36194444 PMCID: PMC9669169 DOI: 10.1002/anie.202213032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Indexed: 11/06/2022]
Abstract
Iron-sulfur clusters are well-established targets in biological nitric oxide (NO) chemistry, but the key intermediate in these processes-a mononitrosylated [Fe4 S4 ] cluster-has not been fully characterized in a protein or a synthetic model thereof. Here, we report the synthesis of a three-member redox series of isostructural mononitrosylated [Fe4 S4 ] clusters. Mononitrosylation was achieved by binding NO to a 3 : 1 site-differentiated [Fe4 S4 ]+ cluster; subsequent oxidation and reduction afforded the other members of the series. All three clusters feature a local high-spin Fe3+ center antiferromagnetically coupled to 3 [NO]- . The observation of an anionic NO ligand suggests that NO binding is accompanied by formal electron transfer from the cluster to NO. Preliminary reactivity studies with the monocationic cluster demonstrate that exposure to excess NO degrades the cluster, supporting the intermediacy of mononitrosylated intermediates in NO sensing/signaling.
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Affiliation(s)
- Youngsuk Kim
- Department of ChemistryMassachusetts Institute of Technology77 Massachusetts AveCambridgeMA 02139USA
- Department of ChemistryPusan National UniversityBusan46241Republic of Korea
| | - Arun Sridharan
- Department of ChemistryMassachusetts Institute of Technology77 Massachusetts AveCambridgeMA 02139USA
| | - Daniel L. M. Suess
- Department of ChemistryMassachusetts Institute of Technology77 Massachusetts AveCambridgeMA 02139USA
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15
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Ke L, Wei F, Xie L, Karges J, Chen Y, Ji L, Chao H. A Biodegradable Iridium(III) Coordination Polymer for Enhanced Two-Photon Photodynamic Therapy Using an Apoptosis-Ferroptosis Hybrid Pathway. Angew Chem Int Ed Engl 2022; 61:e202205429. [PMID: 35532958 DOI: 10.1002/anie.202205429] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 12/13/2022]
Abstract
The clinical application of photodynamic therapy is hindered by the high glutathione concentration, poor cancer-targeting properties, poor drug loading into delivery systems, and an inefficient activation of the cell death machinery in cancer cells. To overcome these limitations, herein, the formulation of a promising IrIII complex into a biodegradable coordination polymer (IrS NPs) is presented. The nanoparticles were found to remain stable under physiological conditions but deplete glutathione and disintegrate into the monomeric metal complexes in the tumor microenvironment, causing an enhanced therapeutic effect. The nanoparticles were found to selectively accumulate in the mitochondria where these trigger cell death by hybrid apoptosis and ferroptosis pathways through the photoinduced production of singlet oxygen and superoxide anion radicals. This study presents the first example of a coordination polymer that can efficiently cause cancer cell death by apoptosis and ferroptosis upon irradiation, providing an innovative approach for cancer therapy.
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Affiliation(s)
- Libing Ke
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Fangmian Wei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Lina Xie
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Johannes Karges
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.,MOE Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 400201, P. R. China
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16
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Laporte F, Chenavier Y, Botz A, Gateau C, Lebrun C, Hostachy S, Vidaud C, Delangle P. A Simple Fluorescence Affinity Assay to Decipher Uranyl-Binding to Native Proteins. Angew Chem Int Ed Engl 2022; 61:e202203198. [PMID: 35466512 PMCID: PMC9322271 DOI: 10.1002/anie.202203198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Indexed: 11/29/2022]
Abstract
Determining the affinity of proteins for uranyl is key to understand the toxicity of this cation and to further develop decorporation strategies. However, usual techniques to achieve that goal often require specific equipment and expertise. Here, we propose a simple, efficient, fluorescence‐based method to assess the affinity of proteins and peptides for uranyl, at equilibrium and in buffered solution. We first designed and characterized an original uranyl‐binding fluorescent probe. We then built a reference scale for uranyl affinity in solution, relying on signal quenching of our fluorescent probe in presence of high‐affinity uranyl‐binding peptides. We finally validated our approach by re‐evaluating the uranyl‐binding affinity of four native proteins. We envision that this tool will facilitate the reliable and reproducible assessment of affinities of peptides and proteins for uranyl.
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Affiliation(s)
- Fanny Laporte
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Yves Chenavier
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Alexandra Botz
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Christelle Gateau
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Colette Lebrun
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Sarah Hostachy
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
| | - Claude Vidaud
- CEA, Fundamental Research Division, Biosciences and Biotechnologies Institute of Aix-Marseille, 30207, Bagnols sur Céze, France
| | - Pascale Delangle
- IRIG, SyMMES, Université Grenoble Alpes, CEA, CNRS, Grenoble INP, 38000, Grenoble, France
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17
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Xiong K, Ouyang C, Liu J, Karges J, Lin X, Chen X, Chen Y, Wan J, Ji L, Chao H. Chiral Ru II -Pt II Complexes Inducing Telomere Dysfunction against Cisplatin-Resistant Cancer Cells. Angew Chem Int Ed Engl 2022; 61:e202204866. [PMID: 35736788 DOI: 10.1002/anie.202204866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Indexed: 11/06/2022]
Abstract
The application of G-quadruplex stabilizers presents a promising anticancer strategy. However, the molecular crowding conditions within cells diminish the potency of current G-quadruplex stabilizers. Herein, chiral RuII -PtII dinuclear complexes were developed as highly potent G-quadruplex stabilizers even under challenging molecular crowding conditions. The compounds were encapsulated with biotin-functionalized DNA cages to enhance sub-cellular localization and provide cancer selectivity. The nanoparticles were able to efficiently inhibit the endogenous activities of telomerase in cisplatin-resistant cancer cells and cause cell death by apoptosis. The nanomaterials demonstrated high antitumor activity towards cisplatin-resistant tumor cells as well as tumor-bearing mice. To the best of our knowledge, this study presents the first example of a RuII -PtII dinuclear complex as a G-quadruplex stabilizer with an anti-cancer effect towards drug-resistant tumors inside an animal model.
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Affiliation(s)
- Kai Xiong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Cheng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jiaqi Liu
- College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Johannes Karges
- Department of Chemistry and, Biochemistry University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Xinlin Lin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Xiang Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jian Wan
- College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.,MOE Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 400201, P. R. China
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18
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Sauser L, Kalvoda T, Kavas A, Rulíšek L, Shoshan M. Cyclic Octapeptides Composed of Two Glutathione Units Outperform the Monomer in Lead Detoxification. ChemMedChem 2022; 17:e202200152. [PMID: 35560783 PMCID: PMC9544108 DOI: 10.1002/cmdc.202200152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/11/2022] [Indexed: 11/06/2022]
Abstract
A rationally-designed scaffold of cyclic octapeptides composed of two units of the natural tripeptide glutathione (GSH) was optimized to strongly and selectively capture toxic lead ions (Pb(II)). Using state-of-the-art computational tools, a list of eleven plausible peptides was shortened to five analogs based on their calculated affinity to Pb(II) ions. We then synthesized and investigated them for their abilities to recover Pb-poisoned human cells. A clear pattern was observed from the in vitro detoxification results, indicating the importance of cavity size and polar moieties to enhance metal capturing. These, together with the apparent benefit in cyclizing the peptides, improved the detoxification of the two lead peptides by approximately two folds compared to GSH and the benchmark chelating agents against Pb poisoning. Moreover, the two peptides did not show any toxicity and, therefore, were thoroughly investigated to determine their potential as next-generation remedies for Pb poisoning.
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Affiliation(s)
- Luca Sauser
- University of Zurich: Universitat Zurich, Department of Chemistry, SWITZERLAND
| | - Tadeáš Kalvoda
- Czech Academy of Sciences: Akademie ved Ceske republiky, Institute of Organic Chemistry and Biochemistry, CZECH REPUBLIC
| | - Ayça Kavas
- University of Zurich: Universitat Zurich, Department of Chemistry, SWITZERLAND
| | - Lubomír Rulíšek
- Czech Academy of Sciences: Akademie ved Ceske republiky, Institute of Organic Chemistry and Biochemistry, CZECH REPUBLIC
| | - Michal Shoshan
- University of Zurich: Universitat Zurich, Department of Chemistry, Winterthurerstrasse 190, 8057, Zurich, SWITZERLAND
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19
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Wei D, Huang Y, Wang B, Ma L, Karges J, Xiao H. Photo-Reduction with NIR Light of Nucleus-Targeting Pt IV Nanoparticles for Combined Tumor-Targeted Chemotherapy and Photodynamic Immunotherapy. Angew Chem Int Ed Engl 2022; 61:e202201486. [PMID: 35212437 DOI: 10.1002/anie.202201486] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 12/19/2022]
Abstract
The development of PtIV prodrugs which are selectively reduced within cancerous cells into their PtII therapeutically active species has received increasing attention within the last decade. Despite recent research progress, the majority of investigated compounds are excited using ultraviolet or blue light. As the light penetration depth is low at these wavelengths, the treatment of deep-seated or large tumors is limited. To overcome this limitation, herein, the example of PtIV -functionalized nanoparticles that could be excited within the NIR region at 808 nm is reported. The polymer backbone which can self-assemble into nanoparticles was functionalized with PtIV complexes for chemotherapy, photosensitizers for photodynamic immunotherapy, and nucleus/cancer-targeting peptides. Upon irradiation, the PtIV center is reduced to PtII and the axially coordinated ligands are released, presenting a multimodal treatment. While selectively accumulating in tumorous tissue, the nanoparticles demonstrated the ability to eradicate a triple-negative breast cancer tumor inside a mouse model.
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Affiliation(s)
- Dengshuai Wei
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Polymer Physical and Chemistry, Institute of Chemistry Chinese Academy of Science, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yun Huang
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Polymer Physical and Chemistry, Institute of Chemistry Chinese Academy of Science, Beijing, 100190, China
| | - Bin Wang
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Polymer Physical and Chemistry, Institute of Chemistry Chinese Academy of Science, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lili Ma
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Johannes Karges
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Haihua Xiao
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Polymer Physical and Chemistry, Institute of Chemistry Chinese Academy of Science, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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20
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Ghandhi LHD, Bidula S, Pask CM, Lord RM, McGowan PC. Bis(N-picolinamido)cobalt(II) Complexes Display Antifungal Activity toward Candida albicans and Aspergillus fumigatus. ChemMedChem 2021; 16:3210-3221. [PMID: 34327861 PMCID: PMC8597028 DOI: 10.1002/cmdc.202100159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/14/2021] [Indexed: 11/06/2022]
Abstract
This report highlights the synthesis and characterization of ten new bis(N-picolinamido)cobalt(II) complexes of the type [(L)2 CoX2 ]0/2+ , whereby L=N-picolinamide ligand and X=diisothiocyanato (-NCS), dichlorido (-Cl) or diaqua (-OH2 ) ligands. Single crystal X-ray (SC-XRD) analysis for nine of the structures are reported and confirm the picolinamide ligand is bound to the Co(II) center through a neutral N,O binding mode. With the addition of powder X-ray diffraction (PXRD), we have confirmed the cis and trans ligand arrangements of each complex. All complexes were screened against several fungal species and show increased antifungal activity. Notably, these complexes had significant activity against strains of Candida albicans and Aspergillus fumigatus, with several compounds exhibiting growth inhibition of >80 %, and onecompound inhibiting Aspergillus fumigatus hyphal growth by >90 %. Conversely, no antifungal activity was exhibited toward Cryptococcus neoformans and no cytotoxicity towards mammalian cell lines.
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Affiliation(s)
| | - Stefan Bidula
- School of Biological SciencesUniversity of East AngliaNorwich Research ParkNorwichNR4 7JTUK
| | | | - Rianne M. Lord
- School of ChemistryUniversity of East AngliaNorwich Research ParkNorwichNR4 7JTUK
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21
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Sergi B, Bulut I, Xia Y, Waller ZAE, Yildizhan Y, Acilan C, Lord RM. Understanding the Potential In Vitro Modes of Action of Bis(β-diketonato) Oxovanadium(IV) Complexes. ChemMedChem 2021; 16:2402-2410. [PMID: 33856120 PMCID: PMC8453837 DOI: 10.1002/cmdc.202100152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/13/2021] [Indexed: 12/22/2022]
Abstract
To understand the potential in vitro modes of action of bis(β‐diketonato) oxovanadium(IV) complexes, nine compounds of varying functionality have been screened using a range of biological techniques. The antiproliferative activity against a range of cancerous and normal cell lines has been determined, and show these complexes are particularly sensitive against the lung carcinoma cell line, A549. Annexin V (apoptosis) and Caspase‐3/7 assays were studied to confirm these complexes induce programmed cell death. While gel electrophoresis was used to determine DNA cleavage activity and production of reactive oxygen species (ROS), the Comet assay was used to determine induced genomic DNA damage. Additionally, Förster resonance energy transfer (FRET)‐based DNA melting and fluorescent intercalation displacement assays have been used to determine the interaction of the complexes with double strand (DS) DNA and to establish preferential DNA base‐pair binding (AT versus GC).
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Affiliation(s)
- Baris Sergi
- Gradute School of Health Sciences, Koç University, 34450, Sariyer, Istanbul, Turkey
| | - Ipek Bulut
- Gradute School of Health Sciences, Koç University, 34450, Sariyer, Istanbul, Turkey
| | - Ying Xia
- School of Pharmacy, University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK
| | - Zoë A E Waller
- School of Pharmacy, University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK.,School of Pharmacy, UCL, 29-39 Brunswick Square, WC1E 6BT, London, UK
| | - Yasemin Yildizhan
- Genetic Engineering and Biotechnology Institute, TUBITAK, 41470, Kocaeli, Turkey
| | - Ceyda Acilan
- School of Medicine, Koç University, 34450, Sariyer, Istanbul, Turkey.,Research Center for Translational Medicine, Koç University, 34450, Sariyer, Istanbul, Turkey
| | - Rianne M Lord
- School of Chemistry, University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK
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22
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Abstract
The in vivo toxicity of new metallodrugs either as Small Bioactive Molecules (SBAMs) or Conjugates of Metals with Drugs (CoMeDs) or their hydrogels such as with hydroxyethyl-methacrylate (HEMA) (pHEMA@SBAMs or pHEMA@CoMeDs) are evaluated by the brine shrimp assay. Thus individuals of Artemia salina larvae are incubated in saline solutions with SBAMs, CoMeDs, pHEMA@SBAMs or pHEMA@CoMeDs or without for 24 h. The toxicity is then determined in terms of the mortality rate of brine shrimp larvae. Brine shrimp assay is a low cost, safe, no required feeding during the assay, while it requiring only a small amount of the tested agent.
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Affiliation(s)
- Christina N. Banti
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
| | - Sotiris K. Hadjikakou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
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23
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Abstract
While two classes of non-heme iron enzymes use ferric centers to activate singlet organic substrates for the spin forbidden reaction with 3O2, most classes use high spin ferrous sites to activate dioxygen. These FeII active sites do not exhibit intense absorption bands and have an integer spin ground state thus are mostly EPR inactive. We have developed new spectroscopic methodologies that provide geometric and electronic structural insight into the ferrous centers and their interactions with cosubstrates for dioxygen activation and into the nature of the intermediates generated in these reactions. First, we present our variable-temperature variable-field magnetic circular dichroism (VTVH MCD) methodology to experimentally define the geometric and electronic structure of the high spin ferrous active site. Then, we focus on using Nuclear Resonance Vibrational Spectroscopy (NRVS, performed at SPring-8) to define geometric structure and VTVH MCD to define the electronic structure of the FeIII-OOH and FeIV=O intermediates generated in O2 activation and the spin state dependence of their frontier molecular orbitals (FMOs) in controlling reactivity. Experimentally validated reaction coordinates are derived for the anticancer drug bleomycin in its cleavage of DNA and for an alpha- ketoglutarate dependent dioxygenase in its selective halogenation over the thermodynamically favored hydroxylation of substrate.
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24
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McGregor WC, Gillner DM, Swierczek SI, Liu D, Holz RC. Identification of a Histidine Metal Ligand in the argE-Encoded N-Acetyl-L-Ornithine Deacetylase from Escherichia coli. Springerplus 2013; 2:482. [PMID: 25674394 PMCID: PMC4320195 DOI: 10.1186/2193-1801-2-482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 08/28/2013] [Indexed: 11/15/2022]
Abstract
The H355A, H355K, H80A, and H80K mutant enzymes of the argE-encoded N-acetyl-L-ornithine deacetylase (ArgE) from Escherichia coli were prepared, however, only the H355A enzyme was found to be soluble. Kinetic analysis of the Co(II)-loaded H355A exhibited activity levels that were 380-fold less than Co(II)-loaded WT ArgE. Electronic absorption spectra of Co(II)-loaded H355A-ArgE indicate that the bound Co(II) ion resides in a distorted, five-coordinate environment and Isothermal Titration Calorimetry (ITC) data for Zn(II) binding to the H355A enzyme provided a dissociation constant (Kd) of 39 μM. A three-dimensional homology model of ArgE was generated using the X-ray crystal structure of the dapE-encoded N-succinyl-L,L-diaminopimelic acid desuccinylase (DapE) from Haemophilus influenzae confirming the assignment of H355 as well as H80 as active site ligands.
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Affiliation(s)
- Wade C McGregor
- The Department of Applied Sciences and Mathematics, College of Technology and Innovation, Arizona State University, Mesa, AZ 85212 USA
| | - Danuta M Gillner
- Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60626 USA ; The Department of Chemistry, Silesian University of Technology, Gliwice, 44-100 Poland
| | - Sabina I Swierczek
- Contribution from the Department of Chemistry, Marquette University, Milwaukee, WI 53233 USA
| | - Dali Liu
- Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60626 USA
| | - Richard C Holz
- Contribution from the Department of Chemistry, Marquette University, Milwaukee, WI 53233 USA ; Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60626 USA
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