51
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Michniewicz F, Saletta F, Rouaen JRC, Hewavisenti RV, Mercatelli D, Cirillo G, Giorgi FM, Trahair T, Ziegler D, Vittorio O. Copper: An Intracellular Achilles' Heel Allowing the Targeting of Epigenetics, Kinase Pathways, and Cell Metabolism in Cancer Therapeutics. ChemMedChem 2021; 16:2315-2329. [PMID: 33890721 DOI: 10.1002/cmdc.202100172] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 02/06/2023]
Abstract
Copper is an essential transition metal frequently increased in cancer known to strongly influence essential cellular processes. Targeted therapy protocols utilizing both novel and repurposed drug agents initially demonstrate strong efficacy, before failing in advanced cancers as drug resistance develops and relapse occurs. Overcoming this limitation involves the development of strategies and protocols aimed at a wider targeting of the underlying molecular changes. Receptor Tyrosine Kinase signaling pathways, epigenetic mechanisms and cell metabolism are among the most common therapeutic targets, with molecular investigations increasingly demonstrating the strong influence each mechanism exerts on the others. Interestingly, all these mechanisms can be influenced by intracellular copper. We propose that copper chelating agents, already in clinical trial for multiple cancers, may simultaneously target these mechanisms across a wide variety of cancers, serving as an excellent candidate for targeted combination therapy. This review summarizes the known links between these mechanisms, copper, and copper chelation therapy.
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Affiliation(s)
- Filip Michniewicz
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Federica Saletta
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Jourdin R C Rouaen
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Rehana V Hewavisenti
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Daniele Mercatelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Giuseppe Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Federico M Giorgi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Toby Trahair
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia
| | - David Ziegler
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia
| | - Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
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52
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Kladnik J, Coverdale JPC, Kljun J, Burmeister H, Lippman P, Ellis FG, Jones AM, Ott I, Romero-Canelón I, Turel I. Organoruthenium Complexes with Benzo-Fused Pyrithiones Overcome Platinum Resistance in Ovarian Cancer Cells. Cancers (Basel) 2021; 13:2493. [PMID: 34065335 PMCID: PMC8160969 DOI: 10.3390/cancers13102493] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/07/2021] [Accepted: 05/14/2021] [Indexed: 02/07/2023] Open
Abstract
Drug resistance to existing anticancer agents is a growing clinical concern, with many first line treatments showing poor efficacy in treatment plans of some cancers. Resistance to platinum agents, such as cisplatin, is particularly prevalent in the treatment of ovarian cancer, one of the most common cancers amongst women in the developing world. Therefore, there is an urgent need to develop next generation of anticancer agents which can overcome resistance to existing therapies. We report a new series of organoruthenium(II) complexes bearing structurally modified pyrithione ligands with extended aromatic scaffold, which overcome platinum and adriamycin resistance in human ovarian cancer cells. The mechanism of action of such complexes appears to be unique from that of cisplatin, involving G1 cell cycle arrest without generation of cellular ROS, as is typically associated with similar ruthenium complexes. The complexes inhibit the enzyme thioredoxin reductase (TrxR) in a model system and reduce cell motility towards wound healing. Importantly, this work highlights further development in our understanding of the multi-targeting mechanism of action exhibited by transition metal complexes.
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Affiliation(s)
- Jerneja Kladnik
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia; (J.K.); (J.K.)
| | - James P. C. Coverdale
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, UK; (J.P.C.C.); (F.G.E.); (A.M.J.)
| | - Jakob Kljun
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia; (J.K.); (J.K.)
| | - Hilke Burmeister
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany; (H.B.); (P.L.); (I.O.)
| | - Petra Lippman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany; (H.B.); (P.L.); (I.O.)
| | - Francesca G. Ellis
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, UK; (J.P.C.C.); (F.G.E.); (A.M.J.)
| | - Alan M. Jones
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, UK; (J.P.C.C.); (F.G.E.); (A.M.J.)
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany; (H.B.); (P.L.); (I.O.)
| | - Isolda Romero-Canelón
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, UK; (J.P.C.C.); (F.G.E.); (A.M.J.)
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia; (J.K.); (J.K.)
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53
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Sahoo S, Raghavan A, Kumar A, Nandi D, Chakravarty AR. Biotin‐Appended Iron(III) Complexes of Curcumin for Targeted Photo‐Chemotherapy. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Somarupa Sahoo
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Abinaya Raghavan
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Arun Kumar
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Dipankar Nandi
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
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54
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Miranda VM. Medicinal inorganic chemistry: an updated review on the status of metallodrugs and prominent metallodrug candidates. REV INORG CHEM 2021. [DOI: 10.1515/revic-2020-0030] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abstract
Metallodrugs correspond to a small portion of all available drugs in the market and, yet, some of them are among the most used and important drugs in modern medicine. However, medicinal inorganic chemistry remains an underestimated area within medicinal chemistry and the main reason is the mislead association of metals to toxic agents. Thus, in this review, the potential of medicinal inorganic chemistry in drug designing is highlighted through a description of the current status of metallodrugs and metallodrug candidates in advanced clinical trials. The broad spectrum of application of metal-based drugs in medicine for both therapy and diagnosis is addressed by the extensive list of examples presented herein.
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Affiliation(s)
- Victor M. Miranda
- Instituto de Química de São Carlos, Universidade de São Paulo , São Carlos , SP , Brazil
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55
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Ahmad F, Alkahtani MDF, Taj MB, Alnajeebi AM, Alzahrani SO, Babteen NA, Alelwani W, Bannunah AM, Noor S, Ayub R, Tirmizi SA, Alshater H. Synthesis of New Naphthyl Aceto Hydrazone-Based Metal Complexes: Micellar Interactions, DNA Binding, Antimicrobial, and Cancer Inhibition Studies. Molecules 2021; 26:molecules26041044. [PMID: 33671247 PMCID: PMC7923181 DOI: 10.3390/molecules26041044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/11/2021] [Accepted: 02/13/2021] [Indexed: 11/16/2022] Open
Abstract
In the present study, naphthyl acetohydrazide (HL) ligand was prepared and used for the synthesis of new six amorphous transition metal (Co(II), Ni(II), Cu(II), Zn(II), Pb(II), Cd(II)) complexes. All the compounds were characterized by elemental analysis, UV-vis, FT-IR, 1H- and 13C-NMR, and Matrix-Assisted Laser Desorption Ionization (MALDI). The solubilization study was carried out by estimating the interaction between the metal complexes with surfactants viz. sodium stearate (SS) and Cetyltrimethylammonium bromide (CTAB). UV-Visible spectroscopy was employed to determine partitioning and binding parameters, whereas electrical conductivity measurements were employed to estimate critical micellar concentration (CMC), the extent of dissociation, and free energy of micellization. The CT-DNA interaction of synthesized compounds with DNA represents the major groove binding. The synthesized ligand and metal complexes were also tested against bacterial and fungal strains and it has been observed that Cu(II) complex is active against all the strains except Candida albicans, while Cd(II) complex is active against all bacterial and fungal strains except Pseudomonas. Among all compounds, only the Pd(II) complex shows reasonable activity against cervical cancer HeLa cell lines, representing 97% inhibition.
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Affiliation(s)
- Fawad Ahmad
- Department of Chemistry, Quaid-e-Azam University Islamabad, Islamabad 44000, Pakistan;
| | - Muneera D. F. Alkahtani
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11675, Saudi Arabia
- Correspondence: (M.D.F.A.); (M.B.T.); (S.A.T.); Tel.: +92-300-754-2669 (M.B.T.)
| | - Muhammad Babar Taj
- Department of Chemistry, Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan
- Correspondence: (M.D.F.A.); (M.B.T.); (S.A.T.); Tel.: +92-300-754-2669 (M.B.T.)
| | - Afnan M. Alnajeebi
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 80203, Saudi Arabia; (A.M.A.); (N.A.B.); (W.A.)
| | - Seraj Omar Alzahrani
- Department of Chemistry, College of Science, Taibah University, Madinah 42353, Saudi Arabia;
| | - Nouf Abubakr Babteen
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 80203, Saudi Arabia; (A.M.A.); (N.A.B.); (W.A.)
| | - Walla Alelwani
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 80203, Saudi Arabia; (A.M.A.); (N.A.B.); (W.A.)
| | - Azzah M. Bannunah
- Department of Basic Sciences, Common First Year Deanship, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Sadia Noor
- Department of Chemistry, Govt. College for Women University Faisalabad, Faisalabad 38000, Pakistan;
| | - Rabia Ayub
- Arrhenius Laboratory, Department of Organic Chemistry, Stockholm University, Svante Arrhenius Vag 16C, SE-10691 Stockholm, Sweden;
| | - Syed Ahmad Tirmizi
- Department of Chemistry, Quaid-e-Azam University Islamabad, Islamabad 44000, Pakistan;
- Correspondence: (M.D.F.A.); (M.B.T.); (S.A.T.); Tel.: +92-300-754-2669 (M.B.T.)
| | - Heba Alshater
- Department of Forensic Medicine and Clinical Toxicology, Menoufia University, Shbien El-Kom 32511, Egypt;
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56
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Development of new combination anti-leishmanial complexes: Triphenyl Sb(V) mono-hydroxy mono-quinolinolates. J Inorg Biochem 2021; 219:111385. [PMID: 33894637 DOI: 10.1016/j.jinorgbio.2021.111385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/20/2021] [Accepted: 01/27/2021] [Indexed: 12/18/2022]
Abstract
In seeking to develop single entity combination anti-Leishmanial complexes six heteropletic organometallic Sb(V) hydroxido quinolinolate complexes of general formula [SbPh3(C9H4NORR')(OH)] have been synthesised and characterised, derived from a series of halide substituted quinolinols (8-hydroxyquinolines). Single crystal X-ray diffraction on all the complexes show a common distorted six-coordinate octahedral environment at the Sb(V) centre, with the aryl groups and nitrogen atom of quinolinolate ligand bonding in the equatorial planes, with the two oxygen atoms (hydroxyl and quinolinolate) occupying the axial plane in an almost linear configuration. Each complex was tested for their anti-promastigote activity and mammalian cytotoxicity and a selectivity indices established. The complexes displayed excellent anti-promastigote activity (IC50: 2.03-3.39 μM) and varied mammalian cytotoxicity (IC50: 12.7-46.9 μM), leading to a selectivity index range of 4.52-16.7. All complexes displayed excellent anti-amastigote activity with a percentage infection range of 2.25%-9.00%. All complexes performed substantially better than the parent quinolinols and comparable carboxylate complexes [SbPh3(O2CRR')2] indicating the synergistic role of the Sb(V) and quinolinol moieties in increasing parasite mortality. Two of the complexes [SbPh3(C9H4NOBr2)(OH)] 4, [SbPh3(C9H4NOI2)(OH)] 5, provide an ideal combination of high selective and good activity towards the leishmanial amastigotes and offer the potential as good lead compounds.
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57
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Jacobs FJF, Venter GJS, Fourie E, Kroon RE, Brink A. Substitution reactivity and structural variability induced by tryptamine on the biomimetic rhenium tricarbonyl complex. RSC Adv 2021; 11:24443-24455. [PMID: 35479015 PMCID: PMC9036643 DOI: 10.1039/d1ra03750a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/02/2021] [Indexed: 01/28/2023] Open
Abstract
A series of seven fac-[Re(CO)3(5Me-Sal-Trypt)(L)] complexes containing tryptamine on the N,O 5-methyl-salicylidene bidentate ligand backbone and where L is MeOH, Py, Imi, DMAP, PPh3 coordinated to the 6th position have been studied, including the formation of a dinuclear Re2 cluster. The crystallographic solid state structures show marked similarity in structural tendency, in particular the rigidity of the Re core and the hydrogen bond interactions similar to those found in protein structures. The rates of formation and stability of the complexes were evaluated by rapid time-resolved stopped-flow techniques and the methanol substitution reaction indicates the significant activation induced by the use of the N,O salicylidene bidentate ligand as manifested by the second-order rate constants for the entering nucleophiles. Both linear and limiting kinetics were observed and a systematic evaluation of the kinetics is reported clearly indicating an interchange type of intimate mechanism for the methanol substitution. The anticancer activity of compounds 1–7 was tested on HeLa cells and it was found that all compounds showed similar cytotoxicity where solubility allowed. IC50-values between ca. 11 and 22 μM indicate that some cytotoxicity resides most likely on the salicylidene–tryptamine ligand. The photoluminescence of the seven complexes is similar in maximum emission wavelength with little variation despite the broad range of ligands coordinated to the 6th position on the metal centre. The biomimetic tryptamine rhenium tricarbonyl complex shows rapid substitution reactivity on the 6th position as well as cytotoxicity and photoluminescence capability induced by the salicylidene bidentate ligand.![]()
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Affiliation(s)
| | | | - Eleanor Fourie
- Department of Chemistry
- University of the Free State
- Bloemfontein 9300
- South Africa
| | - Robin E. Kroon
- Department of Physics
- University of the Free State
- Bloemfontein 9300
- South Africa
| | - Alice Brink
- Department of Chemistry
- University of the Free State
- Bloemfontein 9300
- South Africa
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58
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Weinstain R, Slanina T, Kand D, Klán P. Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials. Chem Rev 2020; 120:13135-13272. [PMID: 33125209 PMCID: PMC7833475 DOI: 10.1021/acs.chemrev.0c00663] [Citation(s) in RCA: 271] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 02/08/2023]
Abstract
Photoactivatable (alternatively, photoremovable, photoreleasable, or photocleavable) protecting groups (PPGs), also known as caged or photocaged compounds, are used to enable non-invasive spatiotemporal photochemical control over the release of species of interest. Recent years have seen the development of PPGs activatable by biologically and chemically benign visible and near-infrared (NIR) light. These long-wavelength-absorbing moieties expand the applicability of this powerful method and its accessibility to non-specialist users. This review comprehensively covers organic and transition metal-containing photoactivatable compounds (complexes) that absorb in the visible- and NIR-range to release various leaving groups and gasotransmitters (carbon monoxide, nitric oxide, and hydrogen sulfide). The text also covers visible- and NIR-light-induced photosensitized release using molecular sensitizers, quantum dots, and upconversion and second-harmonic nanoparticles, as well as release via photodynamic (photooxygenation by singlet oxygen) and photothermal effects. Release from photoactivatable polymers, micelles, vesicles, and photoswitches, along with the related emerging field of photopharmacology, is discussed at the end of the review.
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Affiliation(s)
- Roy Weinstain
- School
of Plant Sciences and Food Security, Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Tomáš Slanina
- Institute
of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Dnyaneshwar Kand
- School
of Plant Sciences and Food Security, Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Petr Klán
- Department
of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
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59
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Gómez J, Sierra D, Cárdenas C, Guzmán F. Bio-organometallic Peptide Conjugates: Recent Advances in Their Synthesis and Prospects for Biomedical Application. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200309093938] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
One area of organometallic chemistry that has attracted great interest in recent
years is the syntheses, characterization and study of organometallic complexes conjugated
to biomolecules with different steric and electronic properties as potential therapeutic
agents against cancer and malaria, as antibiotics and as radiopharmaceuticals. This minireview
focuses on the unique structural diversity that has recently been discovered in α-
amino acids and the reactions of metallocene complexes with peptides having different
chemical behavior and potential medical applications. Replacing α-amino acids with metallocene
fragments is an effective way of selectively influencing the physicochemical,
structural, electrochemical and biological properties of the peptides. Consequently, research
in the field of bioorganometallic chemistry offers the opportunity to develop bioactive
metal compounds as an innovative and promising approach in the search for pharmacological control of
different diseases.
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Affiliation(s)
- Johana Gómez
- Nucleo de Biotecnologia Curauma, Pontificia Universidad Catolica de Valparaiso, Av. Universidad 330, Valparaiso, Chile
| | - Diego Sierra
- Instituto de Quimica y Bioquimica, Facultad de Ciencias, Universidad de Valparaiso, Av. Gran Bretana 1111, Valparaíso, Chile
| | - Constanza Cárdenas
- Nucleo de Biotecnologia Curauma, Pontificia Universidad Catolica de Valparaiso, Av. Universidad 330, Valparaiso, Chile
| | - Fanny Guzmán
- Nucleo de Biotecnologia Curauma, Pontificia Universidad Catolica de Valparaiso, Av. Universidad 330, Valparaiso, Chile
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60
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Lee SY, Kim CY, Nam TG. Ruthenium Complexes as Anticancer Agents: A Brief History and Perspectives. Drug Des Devel Ther 2020; 14:5375-5392. [PMID: 33299303 PMCID: PMC7721113 DOI: 10.2147/dddt.s275007] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/03/2020] [Indexed: 12/28/2022] Open
Abstract
Platinum (Pt)-based anticancer drugs such as cisplatin have been used to treat various cancers. However, they have some limitations including poor selectivity and toxicity towards normal cells and increasing chemoresistance. Therefore, there is a need for novel metallo-anticancers, which has not been met for decades. Since the initial introduction of ruthenium (Ru) polypyridyl complex, a number of attempts at structural evolution have been conducted to improve efficacy. Among them, half-sandwich Ru-arene complexes have been the most prominent as an anticancer platform. Such complexes have clearly shown superior anticancer profiles such as increased selectivity toward cancer cells and ameliorating toxicity against normal cells compared to existing Pt-based anticancers. Currently, several Ru complexes are under human clinical trials. For improvement in selectivity and toxicity associated with chemotherapy, Ru complexes as photodynamic therapy (PDT), and photoactivated chemotherapy (PACT), which can selectively activate prodrug moieties in a specific region, have also been investigated. With all these studies on these interesting entities, new metallo-anticancer drugs to at least partially replace existing Pt-based anticancers are anticipated. This review covers a brief description of Ru-based anticancer complexes and perspectives.
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Affiliation(s)
- Sang Yeul Lee
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do15588, Republic of Korea
| | - Chul Young Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do15588, Republic of Korea
| | - Tae-Gyu Nam
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do15588, Republic of Korea
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61
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Yousuf I, Bashir M. Synthesis, structural investigations, and cytotoxic evaluation of a half‐sandwich Ru(II)‐arene complex. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry Aligarh Muslim University Aligarh Uttar Pradesh India
| | - Masrat Bashir
- Department of Chemistry Aligarh Muslim University Aligarh Uttar Pradesh India
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62
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Mbatha B, Khathi A, Sibiya N, Booysen I, Mangundu P, Ngubane P. Cardio-protective effects of a dioxidovanadium(V) complex in male sprague-dawley rats with streptozotocin-induced diabetes. Biometals 2020; 34:161-173. [PMID: 33206308 DOI: 10.1007/s10534-020-00270-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/09/2020] [Indexed: 11/24/2022]
Abstract
Cardiovascular complications are among the leading causes of morbidity and mortality in diabetes mellitus (DM). Despite the anti-hyperglycemic effects of various anti-diabetic therapeutic agents like insulin, some of these drugs are implicated in precipitating cardiovascular dysfunction. There is therefore an imperative need to seek alternative drugs that may ameliorate these complications. Accordingly, the aim of the study was to investigate the effects of a dioxidovanadium (V) complex, cis-[VO2(obz)py]) on selected cardiovascular function markers in STZ-induced diabetic rats. The vanadium complex (40 mg kg) was administered orally twice every 3rd day 5 weeks, non-diabetic and diabetic control groups received distilled water whereas the insulin group received subcutaneous insulin injections twice daily for 5 weeks. Blood glucose concentrations, mean arterial pressure (MAP), heart rate, triglycerides (TG) and total cholesterol concentrations were monitored weekly for 5 weeks. Rats were then euthanised and blood and hearts were collected for biochemical analysis. There was a significant decrease in blood glucose, triglycerides, cholesterol concentrations as well as blood pressure of vanadium treated rats compared to the untreated diabetic animals. Vanadium treatment also attenuated cardiac oxidative stress and decreased the expression of transforming growth factor β1 (TGFβ1) and Smad7. Lastly, the administration of the vanadium complex significantly decreased C reactive protein (CRP) and cardiotropin 1(CT-1) concentrations in the plasma and heart tissues. The administration of the dioxidovanadium(V) complex to diabetic rats culminated into cardio-protective effects. Taken together, these observations suggest that this metal complex exhibit a significant potential as an alternative therapeutic drug for DM management.
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Affiliation(s)
- Bonisiwe Mbatha
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu Natal, Durban, South Africa. .,Department of Human Physiology, University of KwaZulu Natal, E-Block, Level 4, Room E4-402, University Road, Chiltern Hills, Westville Campus, 3629, Westville, Private Bag X54001, Durban, 4000, South Africa.
| | - Andile Khathi
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu Natal, Durban, South Africa
| | - Ntethelelo Sibiya
- Pharmacology Division, Faculty of Pharmacy, Rhodes University, Grahamstown, South Africa
| | - Irvin Booysen
- School of Chemistry and Physics, College of Agricultural and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Patrick Mangundu
- School of Chemistry and Physics, College of Agricultural and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Phikelelani Ngubane
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu Natal, Durban, South Africa
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63
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A Five-Coordinate Copper(II) Complex Constructed from Sterically Hindered 4-Chlorobenzoate and Benzimidazole: Synthesis, Crystal Structure, Hirshfeld Surface Analysis, DFT, Docking Studies and Antibacterial Activity. CRYSTALS 2020. [DOI: 10.3390/cryst10110991] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new CuII complex (1) was synthesized by reacting 4-chlorobenzoic acid, benzimidazole and metal salt using ethanol–water (1:1 v/v) as a solvent at room temperature. The complex was characterized by single-crystal X-ray analysis, FTIR and UV—vis spectroscopy. A distorted square pyramidal geometry of the CuII center was observed from the single-crystal X-ray study, which also revealed that the uncoordinated oxygen atom of the carboxylate anions forms intermolecular hydrogen bonds with the N–H groups of the benzimidazole ligands. The Hirshfeld analysis results revealed that the molecular packing of 1 is mainly controlled by O...H (12.7%), Cl...H (16.4%), C...H (24.4%) and H...H (31.1%) contacts. Density functional theory (DFT) calculations were performed to compute the HOMO–LUMO energy gap and electrostatic potential map for the charge transfer regions within the molecule and identify the possible electrophilic and nucleophilic regions of the molecule. A number of reactivity parameters calculated on the basis of EHOMO and ELUMO show its significant polarizability and reactive nature. Complex 1 was also examined and screened for its potential antibacterial effect using the agar well diffusion method. The newly synthesized complex showed an effective and higher killing rate of the microbes in antibacterial testing compared to the parent ligand. The CuII complex (1) showed an enhanced inhibitory activity against P. aeruginosa and equally demonstrated greater binding affinity with DNA gyrase (1KIJ) compared to its ligands according to the molecular docking studies.
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Abstract
Traditional organic antimicrobials mainly act on specific biochemical processes such as replication, transcription and translation. However, the emergence and wide spread of microbial resistance is a growing threat for human beings. Therefore, it is highly necessary to design strategies for the development of new drugs in order to target multiple cellular processes that should improve their efficiency against several microorganisms, including bacteria, viruses or fungi. The present review is focused on recent advances and findings of new antimicrobial strategies based on metal complexes. Recent studies indicate that some metal ions cause different types of damages to microbial cells as a result of membrane degradation, protein dysfunction and oxidative stress. These unique modes of action, combined with the wide range of three-dimensional geometries that metal complexes can adopt, make them suitable for the development of new antimicrobial drugs.
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A kinetic study and mechanisms of reduction of N, N'-phenylene bis(salicyalideneiminato)cobalt(III) by L-ascorbic acid in DMSO-water medium. Heliyon 2020; 6:e04621. [PMID: 32939409 PMCID: PMC7479326 DOI: 10.1016/j.heliyon.2020.e04621] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/17/2020] [Accepted: 07/30/2020] [Indexed: 01/01/2023] Open
Abstract
The kinetics of reduction of N, N1-phenylenebis-(salicylideneiminato)cobalt (III), referred to as [Co(Salophen)]+ by L-ascorbic acid (H2A) was studied in mixed aqueous medium (DMSO:H2O; 1:4 v/v) under pseudo-first-order conditions at 33 ± 1 °C, μ = 0.1 mol dm−3 (NaCl) and λmax = 470 nm. L-ascorbic acid was oxidized to dehydroascorbic acid with kinetics that was first order in both the [H2A] and [Co(Salophen)+] and second-order overall. The reaction involves two parallel reaction pathways; an acid-dependent and the inverse acid-dependent pathways. The inverse acid pathway shows that there is a pre-equilibrium step before the rate determining-step in which a proton is lost. The kinetics followed negative Brønsted–Debye salt effect. Evidence was obtained for the presence of free radicals but none to support the formation of an intermediate complex of significant stability during the reaction. Overall, the data obtained suggest an outer-sphere mechanism for the reaction. A plausible mechanism is proposed.
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Gordon AT, Abosede OO, Ntsimango S, Vuuren SV, Hosten EC, Ogunlaja AS. Synthesis, characterization, molecular docking and antimicrobial activity of copper(II) complexes of metronidazole and 1,10 phenanthroline. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119744] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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67
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Palmeira-Mello MV, Caballero AB, Ribeiro JM, de Souza-Fagundes EM, Gamez P, Lanznaster M. Evaluation of cobalt(III) complexes as potential hypoxia-responsive carriers of esculetin. J Inorg Biochem 2020; 211:111211. [PMID: 32805459 DOI: 10.1016/j.jinorgbio.2020.111211] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 02/02/2023]
Abstract
Differentiation between hypoxic and normoxic tissues have been exploited for the development of selective chemotherapeutic agents. In this context, cobalt(III)-based coordination compounds have been designed and investigated as prospective hypoxia-responsive drug delivery systems. Three cobalt(III) complexes, namely [CoIII(esc)(py2en)]ClO4·(CH3OH)2 (1) [CoIII(esc)(TPA)]ClO4·3H2O (2) and [CoIII(bipy)2(esc)]ClO4·2.5H2O (3) (py2en = N,N'-bis(pyridin-2-ylmethyl)ethylenediamine, TPA = tris(2-pyridylmethyl)amine, bipy = 2,2'-bipyridine and esc = 6,7-dihydroxycoumarin or esculetin), were prepared and investigated as potential carriers of esculetin. The spectroscopic and electrochemical properties of 1-3 were investigated and compared. Reactions of the complexes with biologically relevant reducing agents, viz. ascorbic acid, cysteine and glutathione, were monitored spectroscopically for 24 h, in pH 6.2 and 7.4 PBS phosphate buffer saline (PBS) solutions at 37 °C, under air, argon and dioxygen atmospheres. Dissociation of esculetin was observed upon Co3+/Co2+ reduction preferably under hypoxic conditions, with more effective conversion rates for 3 > 2 > 1. These results illustrate the importance to modulate the Co3+/Co2+ redox potential through the donor-acceptor properties of the ancillary ligands. Complex 3 is cytotoxic against HCT-116 but not against HT-29 and HEK-293 cells. In addition, DNA-binding studies indicate that interactions of 1 and 3 with the biomolecule are electrostatic.
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Affiliation(s)
- Marcos V Palmeira-Mello
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil; nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ana B Caballero
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Juliana Martins Ribeiro
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 30123-970 Belo Horizonte, MG, Brazil
| | - Elaine Maria de Souza-Fagundes
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 30123-970 Belo Horizonte, MG, Brazil
| | - Patrick Gamez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Secció Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Mauricio Lanznaster
- Instituto de Química, Universidade Federal Fluminense, Outeiro S. João Batista S/N, 24020-141 Niterói, RJ, Brazil.
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Synthetic, characterization and cytotoxic studies of ruthenium complexes with Schiff bases encompassing biologically relevant moieties. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114569] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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69
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Metal complexes that bind to the amyloid-β peptide of relevance to Alzheimer’s disease. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213255
expr 886172045 + 931245952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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70
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Gomes LM, Bataglioli JC, Storr T. Metal complexes that bind to the amyloid-β peptide of relevance to Alzheimer’s disease. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213255] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Coloma I, Cortijo M, Fernández-Sánchez I, Perles J, Priego JL, Gutiérrez C, Jiménez-Aparicio R, Desvoyes B, Herrero S. pH- and Time-Dependent Release of Phytohormones from Diruthenium Complexes. Inorg Chem 2020; 59:7779-7788. [PMID: 32412249 DOI: 10.1021/acs.inorgchem.0c00844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The controlled release of functionally active compounds is important in a variety of applications. Here, we have synthesized, characterized, and studied the magnetic properties of three novel metal-metal-bonded tris(formamidinato) Ru25+ complexes. We have used different auxin-related hormones, indole-3-acetate (IAA), 2,4-dichlorophenoxyacetate (2,4-D), and 1-naphthaleneacetate (NAA), to generate [Ru2Cl(μ-DPhF)3(μ-IAA)] (RuIAA), [Ru2Cl(μ-DPhF)3(μ-2,4-D)] (Ru2,4-D), and [Ru2Cl(μ-DPhF)3(μ-NAA)] (RuNAA) (DPhF = N,N'-diphenylformamidinate). The crystal structures of RuIAA, RuIAA·THF, Ru2,4-D·CH2Cl2, and RuNAA·0.5THF have been determined by single-crystal X-ray diffraction. To assess the releasing capacity of the bound hormone, we have employed a biological assay that relied on Arabidopsis thaliana plants expressing an auxin reporter gene and we demonstrate that the release of the phytohormones from RuIAA, Ru2,4-D, and RuNAA is pH- and time-dependent. These studies serve as a proof of concept showing the potential of these types of compounds as biological molecule carriers.
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Affiliation(s)
- Isabel Coloma
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Miguel Cortijo
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Inés Fernández-Sánchez
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Josefina Perles
- Laboratorio de Difracción de Rayos X de Monocristal, Servicio Interdepartamental de Investigación, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - José L Priego
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Crisanto Gutiérrez
- Centro de Biologı́a Molecular Severo Ochoa, CSIC-UAM, Nicolás Cabrera 1, E-28049 Madrid, Spain
| | - Reyes Jiménez-Aparicio
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
| | - Bénédicte Desvoyes
- Centro de Biologı́a Molecular Severo Ochoa, CSIC-UAM, Nicolás Cabrera 1, E-28049 Madrid, Spain
| | - Santiago Herrero
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias Quı́micas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain
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Kaur P, Choudhary R, Pal A, Mony C, Adholeya A. Polymer - Metal Nanocomplexes Based Delivery System: A Boon for Agriculture Revolution. Curr Top Med Chem 2020; 20:1009-1028. [DOI: 10.2174/1568026620666200330160810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/22/2020] [Accepted: 02/18/2020] [Indexed: 01/22/2023]
Abstract
Metal nanoparticles are well known for their antimicrobial properties. The use of metalbased
nanoparticles in the agricultural field has considerably increased globally by both direct and
indirect means for the management of plant diseases. In this context, the development of controlled
delivery systems for slow and sustained release of metal nanoparticles is crucial for prolonged antimicrobial
activity. Polymers have emerged as a valuable carrier for controlled delivery of metal nanoparticles
as agrochemicals because of their distinctive properties. The most significant benefits of encapsulating
metal nanoparticles in a polymer matrix include the ability to function as a protector of metal
nanoparticles and their controlled release with prolonged efficacy. This review focuses on loading
strategies and releasing behavior of metal nanoparticles in the polymer matrix as antimicrobial agents
for plant diseases. The Polymer-metal nanocomplexes (PMNs) comprise a biocompatible polymeric
matrix and metal nanoparticles as active components of an antimicrobial agent, pesticides and plant
growth regulators used to enhance the crop productivity.
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Affiliation(s)
- Pawan Kaur
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Rita Choudhary
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Anamika Pal
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Chanchal Mony
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
| | - Alok Adholeya
- Centre of Excellence in Agrinanotechnology, TERI-Deakin Nanobiotechnology Centre, Gurugram-122002, India
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Burke KJ, Stephens LJ, Werrett MV, Andrews PC. Bismuth(III) Flavonolates: The Impact of Structural Diversity on Antibacterial Activity, Mammalian Cell Viability and Cellular Uptake. Chemistry 2020; 26:7657-7671. [PMID: 32297355 DOI: 10.1002/chem.202000562] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/01/2020] [Indexed: 12/16/2022]
Abstract
A series of homoleptic and heteroleptic bismuth(III) flavonolate complexes derived from six flavonols of varying substitution have been synthesised and structurally characterised. The complexes were evaluated for antibacterial activity towards several problematic Gram-positive (Staphylococcus aureus, methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant Enterococcus (VRE)) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria. The cell viability of COS-7 (monkey kidney) cells treated with the bismuth flavonolates was also studied to determine the effect of the complexes on mammalian cells. The heteroleptic complexes [BiPh(L)2 ] (in which L=flavonolate) showed good antibacterial activity towards all of the bacteria but reduced COS-7 cell viability in a concentration-dependent manner. The homoleptic complexes [Bi(L)3 ] exhibited activity towards the Gram-positive bacteria and showed low toxicity towards the mammalian cell line. Bismuth uptake studies in VRE and COS-7 cells treated with the bismuth flavonolate complexes indicated that Bi accumulation is influenced by both the substitution of the flavonolate ligands and the degree of substitution at the bismuth centre.
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Affiliation(s)
- Kirralee J Burke
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Liam J Stephens
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Melissa V Werrett
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Philip C Andrews
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
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Khutsishvili SS, Chernysheva GN, Rozentsveig IB. Synthesis and structural studies of novel aminopolychloroethylated chelate acetylacetonate complexes of aluminum (III) and chromium (III). Struct Chem 2020. [DOI: 10.1007/s11224-020-01540-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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75
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Mukherjee A, Acharya S, Purkait K, Chakraborty K, Bhattacharjee A, Mukherjee A. Effect of N, N Coordination and Ru II Halide Bond in Enhancing Selective Toxicity of a Tyramine-Based Ru II ( p-Cymene) Complex. Inorg Chem 2020; 59:6581-6594. [PMID: 32295347 DOI: 10.1021/acs.inorgchem.0c00694] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ruthenium compounds are promising anticancer candidates owing to their lower side-effects and encouraging activities against resistant tumors. Half-sandwich piano-stool type RuII compounds of general formula [(L)RuII(η6-arene)(X)]+ (L = chelating bidentate ligand, X = halide) have exhibited significant therapeutic potential against cisplatin-resistant tumor cell lines. In RuII (p-cymene) based complexes, the change of the halide leaving group has led to several interesting features, viz., hydrolytic stability, resistance toward thiols, and alteration in pathways of action. Tyramine is a naturally occurring monoamine which acts as a catecholamine precursor in humans. We synthesized a family of N,N and N,O coordinated RuII (p-cymene) complexes, [(L)RuII(η6-arene)(X)]+ (1-4), with tyramine and varied the halide (X = Cl, I) to investigate the difference in reactivity. Our studies showed that complex 2 bearing N,N coordination with an iodido leaving group shows selective in vitro cytotoxicity against the pancreatic cancer cell line MIA PaCa-2 (IC50 ca. 5 μM) but is less toxic to triple-negative breast cancer (MDA-MB-231), hepatocellular carcinoma (Hep G2), and the normal human foreskin fibroblasts (HFF-1). Complex 2 displays stability toward hydrolysis and does not bind with glutathione, as confirmed by 1H NMR and ESI-HRMS experiments. The inert nature of 2 leads to enhancement of cytotoxicity (IC50 = 5.3 ± 1 μM) upon increasing the cellular treatment time from 48 to 72 h.
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Affiliation(s)
- Arpan Mukherjee
- Department of Chemical Sciences and Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur-741246, India
| | - Sourav Acharya
- Department of Chemical Sciences and Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur-741246, India
| | - Kallol Purkait
- Department of Chemical Sciences and Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur-741246, India
| | - Kaustav Chakraborty
- Amity Institute of Biotechnology, Amity University Kolkata, Major Arterial Road, AA II, Newtown, Kolkata-700135, India
| | - Ashima Bhattacharjee
- Amity Institute of Biotechnology, Amity University Kolkata, Major Arterial Road, AA II, Newtown, Kolkata-700135, India
| | - Arindam Mukherjee
- Department of Chemical Sciences and Centre for Advanced Functional Materials (CAFM), Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur-741246, India
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76
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Pourmorteza N, Jafarpour M, Feizpour F, Rezaeifard A. Cu(ii) vitamin C tunes photocatalytic activity of TiO 2 nanoparticles for visible light-driven aerobic oxidation of benzylic alcohols. RSC Adv 2020; 10:12053-12059. [PMID: 35496605 PMCID: PMC9050754 DOI: 10.1039/d0ra00075b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/15/2020] [Indexed: 12/13/2022] Open
Abstract
The incorporation of Cu(OAc)2 into ascorbic acid coated TiO2 nanoparticles easily provided a new heterogeneous visible-light active titania-based photocatalyst (TiO2-AA-Cu(ii)) which was characterized by different techniques such as FT-IR, XPS, ICP-AES, TGA and TEM. A red-shift of the band-edge and a reduction of the band-gap (2.8 eV vs. 3.08 for TiO2) were demonstrated by UV-DRS and Tauc plots. The combination of the as-prepared TiO2-AA-Cu(ii) nanoparticles with TEMPO and molecular oxygen (air) afforded an active catalytic system for the selective oxidation of diverse set of benzylic alcohols under solvent-free conditions. A photoassisted pathway was confirmed for oxidation reactions evidenced by good correlation between apparent quantum yield (AQY) and diffuse reflectance spectra (DRS) of the as-prepared nanohybrid. The spectral data and recycling experiments demonstrated the structural stability of the title copper photocatalyst during oxidation reactions.
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Affiliation(s)
- Narges Pourmorteza
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand Birjand 97179-414 Iran +98 5632202515 +98 5632202516
| | - Maasoumeh Jafarpour
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand Birjand 97179-414 Iran +98 5632202515 +98 5632202516
| | - Fahimeh Feizpour
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand Birjand 97179-414 Iran +98 5632202515 +98 5632202516
| | - Abdolreza Rezaeifard
- Catalysis Research Laboratory, Department of Chemistry, Faculty of Science, University of Birjand Birjand 97179-414 Iran +98 5632202515 +98 5632202516
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Antiproliferative, DNA binding, and cleavage properties of dinuclear Co(III) complexes containing the bioactive quinizarin ligand. J Biol Inorg Chem 2020; 25:339-350. [DOI: 10.1007/s00775-020-01765-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/12/2020] [Indexed: 01/23/2023]
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78
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Śmiłowicz D, Metzler-Nolte N. Bioconjugates of Co(III) complexes with Schiff base ligands and cell penetrating peptides: Solid phase synthesis, characterization and antiproliferative activity. J Inorg Biochem 2020; 206:111041. [PMID: 32120161 DOI: 10.1016/j.jinorgbio.2020.111041] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 10/25/2022]
Abstract
In this work we synthesized a chelating Schiff base by a single condensation of salicylaldehyde with 3,4-diamino benzoic acid (1). This ligand was used further for complexation to CoCl2·6H2O under nitrogen. In the next step, three six-coordinate Co(III) complexes were synthesized by coordinating this complex with imidazole (2), 2-methyimidazole (3) and N-Boc-l-histidine methyl ester (4) (Boc: tert.-butoxycarbonyl) in axial positions with simultaneous oxidation of Co(II) to Co(III) under ambient environment. All Co(III) complexes were characterized by multinuclear NMR spectroscopy (1H, 13C and 59Co NMR), FT-IR, mass spectrometry and HPLC. The Co(III) complexes were conjugated to three different cell penetrating peptides: FFFF (P1), RRRRRRRRRGAL (P2) and FFFFRRRRRRRRRGAL (P3). Standard solid-phase peptide chemistry was used for the synthesis of cell penetrating peptides. Coupling of N-terminal peptides with the cobalt complexes, possessing a carboxylic group on the tetradentate Schiff base ligand, afforded Co(III)-peptide bioconjugates, which were purified by semi-preparative HPLC and characterized by analytical HPLC and mass spectrometry. The antiproliferative activity of the synthesized compounds was studied against different human tumour cell lines: lung cancer A549, liver cancer HepG2 and normal human fibroblasts GM5657T, in comparison with the activity of cisplatin as a reference drug. The bioconjugate 21 containing the Co complex 4 and the combined phenylalanine and polyarginine cell penetrating sequence P3 shows better activity against the liver cancer line HepG2 than the parent Co(III) complex 4.
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Affiliation(s)
- Dariusz Śmiłowicz
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany.
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Beebe SJ, Celestine MJ, Bullock JL, Sandhaus S, Arca JF, Cropek DM, Ludvig TA, Foster SR, Clark JS, Beckford FA, Tano CM, Tonsel-White EA, Gurung RK, Stankavich CE, Tse-Dinh YC, Jarrett WL, Holder AA. Synthesis, characterization, DNA binding, topoisomerase inhibition, and apoptosis induction studies of a novel cobalt(III) complex with a thiosemicarbazone ligand. J Inorg Biochem 2020; 203:110907. [PMID: 31715377 PMCID: PMC7053658 DOI: 10.1016/j.jinorgbio.2019.110907] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/24/2019] [Accepted: 10/27/2019] [Indexed: 01/09/2023]
Abstract
In this study, 9-anthraldehyde-N(4)-methylthiosemicarbazone (MeATSC) 1 and [Co(phen)2(O2CO)]Cl·6H2O 2 (where phen = 1,10-phenanthroline) were synthesized. [Co(phen)2(O2CO)]Cl·6H2O 2 was used to produce anhydrous [Co(phen)2(H2O)2](NO3)33. Subsequently, anhydrous [Co(phen)2(H2O)2](NO3)33 was reacted with MeATSC 1 to produce [Co(phen)2(MeATSC)](NO3)3·1.5H2O·C2H5OH 4. The ligand, MeATSC 1 and all complexes were characterized by elemental analysis, FT IR, UV-visible, and multinuclear NMR (1H, 13C, and 59Co) spectroscopy, along with HRMS, and conductivity measurements, where appropriate. Interactions of MeATSC 1 and complex 4 with calf thymus DNA (ctDNA) were investigated by carrying out UV-visible spectrophotometric studies. UV-visible spectrophotometric studies revealed weak interactions between ctDNA and the analytes, MeATSC 1 and complex 4 (Kb = 8.1 × 105 and 1.6 × 104 M-1, respectively). Topoisomerase inhibition assays and cleavage studies proved that complex 4 was an efficient catalytic inhibitor of human topoisomerases I and IIα. Based upon the results obtained from the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay on 4T1-luc metastatic mammary breast cancer cells (IC50 = 34.4 ± 5.2 μM when compared to IC50 = 13.75 ± 1.08 μM for the control, cisplatin), further investigations into the molecular events initiated by exposure to complex 4 were investigated. Studies have shown that complex 4 activated both the apoptotic and autophagic signaling pathways in addition to causing dissipation of the mitochondrial membrane potential (ΔΨm). Furthermore, activation of cysteine-aspartic proteases3 (caspase 3) in a time- and concentration-dependent manner coupled with the ΔΨm, studies implicated the intrinsic apoptotic pathway as the major regulator of cell death mechanism.
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Affiliation(s)
- Stephen J Beebe
- The Frank Reidy Center for Bioelectrics, 4211 Monarch Way, Suite 300, Norfolk, VA 23529, USA
| | - Michael J Celestine
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jimmie L Bullock
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Shayna Sandhaus
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - Jessa Faye Arca
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406, USA
| | - Donald M Cropek
- U.S. Army Corps of Engineers, Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Tekettay A Ludvig
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sydney R Foster
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Jasmine S Clark
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Floyd A Beckford
- The University of Virginia's College at Wise, 1 College Avenue, Wise, VA 24293, USA
| | - Criszcele M Tano
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Elizabeth A Tonsel-White
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Raj K Gurung
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Courtney E Stankavich
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Yuk-Ching Tse-Dinh
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th St., Miami, FL 33199, USA
| | - William L Jarrett
- School of Polymers and High-Performance Materials, The University of Southern Mississippi, 118 College Drive, #5050, Hattiesburg, MS 39406, USA
| | - Alvin A Holder
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA.
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Carvalho DEL, Oliveira KM, Bomfim LM, Soares MBP, Bezerra DP, Batista AA, Correa RS. Nucleobase Derivatives as Building Blocks to Form Ru(II)-Based Complexes with High Cytotoxicity. ACS OMEGA 2020; 5:122-130. [PMID: 31956759 PMCID: PMC6963899 DOI: 10.1021/acsomega.9b01921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 12/17/2019] [Indexed: 05/04/2023]
Abstract
Two new Ru(II)-based complexes containing 2-thiouracil derivatives, known as 2-thiouracil (2TU) and 6-methyl-2-thiouracil (6m2TU), were synthesized using cis,trans-[RuCl2(PPh3)2(bipy)] as a precursor. The obtained compounds with a general formula trans-[Ru(2TU)(PPh3)2(bipy)]PF6 (1) and trans-[Ru(6m2TU)(PPh3)2(bipy)]PF6 (2) were characterized by analytical techniques such as NMR, UV-vis, and IR spectroscopies, elementary analysis, mass spectrometry, and single-crystal X-ray diffraction. Moreover, the investigation of the complexes-DNA interaction were carried out using spectrophotometric titrations and showed that the complexes present a weak interaction with this biomolecule. The compounds were evaluated against HL-60, K-562, HepG2, and B16-F10 cancer cells and against noncancer cells (PBMCs). The results of the biological assay revealed that complex 2 is more promising than complex 1. Finally, the present study suggests that complexes 1 and 2 causes cell death by apoptosis, significantly increasing the percentage of apoptotic HL-60 cells, in which the compounds altered the cell cycle, reducing the cells in G1/G0, G2/M, and S phases.
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Affiliation(s)
- Diogo E L Carvalho
- Departamento de Química, Instituto de Ciências Exatas e Biológicas-Campus Morro do Cruzeiro, Universidade Federal de Ouro Preto-UFOP, CEP 35400-000 Ouro Preto, MG, Brazil
| | - Katia M Oliveira
- Departamento de Química, Instituto de Ciências Exatas e Biológicas-Campus Morro do Cruzeiro, Universidade Federal de Ouro Preto-UFOP, CEP 35400-000 Ouro Preto, MG, Brazil
| | - Larissa M Bomfim
- Fundação Oswaldo Cruz, Gonçalo Moniz, Rua Waldemar Falcão, 121, Candeal, CEP 40296-710 Salvador, BA, Brazil
| | - Milena B P Soares
- Fundação Oswaldo Cruz, Gonçalo Moniz, Rua Waldemar Falcão, 121, Candeal, CEP 40296-710 Salvador, BA, Brazil
| | - Daniel P Bezerra
- Fundação Oswaldo Cruz, Gonçalo Moniz, Rua Waldemar Falcão, 121, Candeal, CEP 40296-710 Salvador, BA, Brazil
| | - Alzir A Batista
- Departamento de Química, Universidade Federal de São Carlos-UFSCar, Rod. Washington Luís, km 235 - SP-310, CEP 13565-905 São Carlos, SP, Brazil
| | - Rodrigo S Correa
- Departamento de Química, Instituto de Ciências Exatas e Biológicas-Campus Morro do Cruzeiro, Universidade Federal de Ouro Preto-UFOP, CEP 35400-000 Ouro Preto, MG, Brazil
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81
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Conjugation of Penicillin-G with Silver(I) Ions Expands Its Antimicrobial Activity against Gram Negative Bacteria. Antibiotics (Basel) 2020; 9:antibiotics9010025. [PMID: 31941048 PMCID: PMC7168214 DOI: 10.3390/antibiotics9010025] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 01/06/2023] Open
Abstract
Conjugation of penicillin G (PenH) with silver(I) ions forms a new CoMeD (conjugate of metal with a drug) with formula [Ag(pen)(CH3OH)]2 (PenAg). PenAg was characterized by a plethora of physical and spectroscopic techniques, which include in the solid state m.p.; elemental analysis; X-ray fluorescence (XRF) spectroscopy; scanning electron microscopy (SEM); energy-dispersive X-ray spectroscopy (EDX); FT-IR; and in solution: attenuated total reflection spectroscopy (FT-IR-ATR), UV–Vis, 1H NMR, and atomic absorption (AA). The structure of PenAg was determined by NMR spectroscopy. Silver(I) ions coordinate to the carboxylic group of PenH, while secondary intra-molecular interactions are developed through (i) the nitrogen atom of the amide group in MeOD-d4 or (ii) the sulfur atom in the thietane ring in deuterated dimethyl sulfoxide DMSO-d6. The antibacterial activities of PenAg and the sodium salt of penicillin (PenNa) (the formulation which is clinically used) against Gram positive (Staphylococcus epidermidis (S. epidermidis) and Staphylococcus aureus (S. aureus)) and Gram negative (Pseudomonas aeruginosa (P. aeuroginosa PAO1)) bacteria were evaluated by the means of minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and inhibition zone (IZ). PenAg inhibits the growth of the Gram negative bacterial strain P. aeuroginosa with a MIC value of 23.00 ± 2.29 μM, in contrast to PenNa, which shows no such activity (>2 mM). The corresponding antimicrobial activities of PenAg against the Gram positive bacteria S. epidermidis and S. aureus are even better than those of PenNa. Moreover, PenAg exhibits no in vivo toxicity against Artemia salina at concentration up to 300 μΜ. The wide therapeutic window and the low toxicity, make PenAg a possible candidate for the development of a new antibiotic.
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Abstract
Metal-based drugs and imaging agents are extensively used in the clinic for the treatment and diagnosis of cancers and a wide range of other diseases. The current clinical arsenal of compounds operate via a limited number of mechanisms, whereas new putative compounds explore alternative mechanisms of action, which could potentially bring new chemotherapeutic approaches into the clinic. In this review, metal-based drugs and imaging agents are characterized according to their primary mode of action and the key properties and features of each class of compounds are defined, wherever possible. A better understanding of the roles played by metal compounds at a mechanistic level will help to deliver new metal-based therapies to the clinic, by providing an alternative, targeted and rational approach, to supplement non-targeted screening of novel chemical entities for biological activity.
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Affiliation(s)
- Eszter Boros
- Department of Chemistry, Stony Brook University, 100 Nicolls road, Stony Brook, New York, NY 11790, USA
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
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83
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Phillips AM, Pombeiro AJ. Transition Metal-Based Prodrugs for Anticancer Drug Delivery. Curr Med Chem 2020; 26:7476-7519. [DOI: 10.2174/0929867326666181203141122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 11/08/2018] [Accepted: 11/12/2018] [Indexed: 12/14/2022]
Abstract
:
Transition metal complexes, of which the platinum(II) complex cisplatin is an example,
have been used in medicine to treat cancer for more than 40 years. Although many successes have
been achieved, there are problems associated with the use of these drugs, such as side effects and
drug resistance. Converting them into prodrugs, to make them more inert, so that they can travel to
the tumour site unchanged and release the drug in its active form only there, is a strategy which is
the subject of much research nowadays. The new prodrugs may be activated and release the cytotoxic
agent by differences in oxygen concentration or in pH, by the action of overexpressed enzymes,
by differences in metabolic rates, etc., which characteristically distinguish cancer cells from
normal ones, or even by the input of radiation, which can be visible light. Converting a metal complex
into a prodrug may also be used to improve its pharmacological properties. In some cases, the
metal complex is a carrier which transports the active drug as a ligand. Some platinum prodrugs
have reached clinical trials. So far platinum, ruthenium and cobalt have been the most studied metals.
This review presents the recent developments in this area, including the types of complexes
used, the mechanisms of drug action and in some cases the techniques applied to monitor drug delivery
to cells.
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Affiliation(s)
- Ana M.F. Phillips
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Armando J.L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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84
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Gopalakrishnan D, Sumithaa C, Kumar AM, Bhuvanesh NSP, Ghorai S, Das P, Ganeshpandian M. Encapsulation of a Ru(η6-p-cymene) complex of the antibacterial drug trimethoprim into a polydiacetylene-phospholipid assembly to enhance its in vitro anticancer and antibacterial activities. NEW J CHEM 2020. [DOI: 10.1039/d0nj03664a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first report of a Ru(arene)–liposome nanoaggregate to enhance the in vitro anticancer activity of a Ru–arene complex in liver cancer cells.
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Affiliation(s)
| | | | - Arumugam Madan Kumar
- Cancer Biology Lab
- Molecular and Nanomedicine Research Unit
- Sathyabama Institute of Science and Technology
- Chennai
- India
| | | | - Suvankar Ghorai
- Department of Biotechnology
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | - Priyadip Das
- Department of Chemistry
- SRM Institute of Science and Technology
- India
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Zeynizadeh B, Rahmani S, Tizhoush H. The immobilized Cu nanoparticles on magnetic montmorillonite (MMT@Fe3O4@Cu): As an efficient and reusable nanocatalyst for reduction and reductive-acetylation of nitroarenes with NaBH4. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114201] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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86
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Rukk NS, Kuz’mina LG, Davydova GA, Buzanov GA, Retivov VM, Belus SK, Kozhukhova EI, Barmashov AE, Khrulev AA, Simonova MA, Krasnoperova VN. Synthesis, structure and cytotoxicity of a zinc(II) bromide complex with caffeine. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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87
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A new calcium(II) complex of marbofloxacin showing much lower acute toxicity with retained antibacterial activity. J Inorg Biochem 2019; 203:110905. [PMID: 31707333 DOI: 10.1016/j.jinorgbio.2019.110905] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 10/20/2019] [Accepted: 10/20/2019] [Indexed: 11/20/2022]
Abstract
Marbofloxacin (MB) is a newly developed veterinary drug with broad-spectrum antibacterial activity. In this study, a new calcium(II)-based complex of marbofloxacin, MB-Ca, was synthesized and structurally characterized by IR, ESI-MS, UV-Vis and single crystal X-ray diffraction analysis. The characterization of this complex in solution state indicated that the coordinated MB-Ca was partly retained, along with the monomeric and dimeric forms of MB. It also showed satisfactory water solubility (1.89 mg/mL), comparing with MB (2.82 mg/mL) at 35 °C. The in vitro antibacterial activity of MB-Ca was also screened towards a series of typical pathogenic bacteria, and determined by the methods of turbidimetry and disc diffusion. The results indicated it showed comparable antibacterial activity to MB. However, it exhibited higher inhibitive ability in vitro on DNA gyrase than MB alone. Furthermore, MB-Ca showed significantly lower acute toxicity (LD50, 3186 mg/kg) than MB (LD50, 1294 mg/kg) in mice, based on the in vivo acute toxicity test. The histopathological examination on the major organs of the mice by the oral administration of MB-Ca did not show obvious organic lesions, which is similar to those treated by MB. The research results suggest that MB-Ca could be further developed into a new promising metal-based veterinary drug and a better substitute of MB, showing unabated antibacterial activity along with lower toxicity.
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88
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de Mello MVP, Cebrián-Torrejón G, Pereira JR, dos Santos Moreira C, Gomes CBDSMR, da Rocha DR, de Souza Fagundes EM, Ferreira GB, Lanznaster M. Evaluation of 5-hydroxy-1,4-naphthoquinone-cobalt(III) complexes for hypoxia-activated drug delivery. J Inorg Biochem 2019; 199:110756. [DOI: 10.1016/j.jinorgbio.2019.110756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022]
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89
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Kumar A, Dixit A, Sahoo S, Banerjee S, Bhattacharyya A, Garai A, Karande AA, Chakravarty AR. Crystal structure, DNA crosslinking and photo-induced cytotoxicity of oxovanadium(IV) conjugates of boron-dipyrromethene. J Inorg Biochem 2019; 202:110817. [PMID: 31706182 DOI: 10.1016/j.jinorgbio.2019.110817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/27/2019] [Accepted: 09/01/2019] [Indexed: 01/01/2023]
Abstract
Cis-dichloro-oxovanadium(IV) complexes [VO(L1/L2)Cl2], where L1 is N-(4-(5,5-difluoro-1,3,7,9-tetramethyl-5H-4ʎ4,5ʎ4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-10-yl)benzyl)-1-(pyridin-2-yl)-N-(pyridin-2-ylmethyl)methanamine in 1 and L2 is N-(4-(5,5-difluoro-2,8-diiodo-1,3,7,9-tetramethyl-5H-4ʎ4,5ʎ4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-10-yl)benzyl)-1-(pyridin-2-yl)-N-(pyridin-2-ylmethyl)methanamine in 2) having 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene as boron-dipyrromethene (BODIPY) appended dipicolylamine bases were prepared, characterized and their photocytotoxicity studied. X-ray crystal structure of 1 showed distorted octahedral geometry with a VIVON3Cl2 core having Cl-V-Cl angle of 91.93(4)°. The complexes showed variable solution conductivity properties. They were non-electrolytes in dry DMF at 25 °C but showed 1:1 electrolytic behavior in an aqueous medium due to dissociation of one chloride ligand as evidenced from the mass spectral study. Complexes 1 and 2 showed absorption bands at 500 and 535 nm, respectively. The calf thymus DNA melting study revealed their interaction through DNA crosslinking on exposure to light which was further confirmed from the alkaline agarose gel electrophoresis using plasmid supercoiled pUC19 DNA. Complex 2 showed disruption of the mitochondrial membrane potential in the JC-1 (1,1',3,3'-tetraethyl-5,5',6,6'-tetrachloroimidacarbocyanine iodide) assay. The complexes were photocytotoxic in visible light (400-700 nm, power: 10 J cm-2) in cervical cancer HeLa and breast cancer MCF-7 cells. Complex 2 having a photoactive diiodo‑boron-dipyrromethene moiety gave a singlet oxygen quantum yield (ΦΔ) value of ~0.6. It showed singlet oxygen mediated apoptotic photodynamic therapy activity with remarkably low IC50 (half maximal inhibitory concentration) value of ~0.15 μM. The cis-disposition of chlorides gave a cis-divacant 4-coordinate intermediate structure from the density functional theory (DFT) study thus mimicking the DNA crosslinking property of cisplatin.
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Affiliation(s)
- Arun Kumar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Akanksha Dixit
- Department of Biochemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Somarupa Sahoo
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Samya Banerjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Arnab Bhattacharyya
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Aditya Garai
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India
| | - Anjali A Karande
- Department of Biochemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India.
| | - Akhil R Chakravarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Sir C.V. Raman Avenue, Bangalore 560012, India.
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91
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Haghdoost MM, Golbaghi G, Guard J, Sielanczyk S, Patten SA, Castonguay A. Synthesis, characterization and biological evaluation of cationic organoruthenium(ii) fluorene complexes: influence of the nature of the counteranion. Dalton Trans 2019; 48:13396-13405. [PMID: 31432885 DOI: 10.1039/c9dt00143c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this study, five ruthenium arene complexes with fluorene-bearing N,N-(1) and N,O-(2) donor Schiff base ligands were synthesized and fully characterized. Cationic ruthenium complexes 3[X], ([Ru(η6-C6H6)(Cl)(fluorene-N[double bond, length as m-dash]CH-pyridine)][X] (where X = BF4, PF6, BPh4), were obtained by reacting ligand 1 with [Ru(η6-C6H6)Cl2]2 in the presence of NH4X salts, whereas neutral complex 4, Ru(η6-C6H6)(Cl)(fluorene-N[double bond, length as m-dash]CH-naphtholate), was isolated by reacting ligand 2 with the same precursor. It was possible to obtain a cationic version of the latter, 5[BF4], by reacting 4 with AgBF4 in the presence of pyridine. All compounds were fully characterized by NMR and HR-ESI-MS whereas some of them were also analyzed by single crystal X-ray analysis. Their in vitro antiproliferative activity was also assessed in human breast cancer cell lines, notably MCF-7 and T47D. Complex 4 and its cationic counterpart 5[BF4] were found to be the most cytotoxic compounds of the series (IC50 = 6.2-16.2 μM) and displayed higher antiproliferative activities than cisplatin in both cell lines. It was found that 5[BF4] undergoes a ligand exchange reaction and readily converts to 4 in the presence of 0.1 M NaCl, explaining the similarity in their observed cytotoxicities. Whereas 3[BF4] and 3[PF6] were found inactive at the tested concentrations, 3[BPh4] displayed a considerable cytotoxicity (IC50 = 16.7-27.8 μM). Notably, 3[BPh4], 4 (and 5[BF4]) were active against T47D, a cisplatin resistant cell line. Interestingly, 4 (16.4 μM) was found to be less cytotoxic than 3[BPh4] and cisplatin (6.6 and 7.9 μM, respectively) in breast healthy cells (MCF-12A). However, in comparison to 4 and cisplatin (at 10 μM), a lower in vivo toxicity was observed for complex 3[BPh4] on the development of zebrafish (Danio rerio) embryos.
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Affiliation(s)
- Mohammad Mehdi Haghdoost
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
| | - Golara Golbaghi
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
| | - Juliette Guard
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
| | - Sarah Sielanczyk
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
| | - Shunmoogum A Patten
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
| | - Annie Castonguay
- INRS - Centre Armand-Frappier Santé Biotechnology, Université du Québec, 531 boul. des Prairies, Laval, Quebec H7V 1B7, Canada.
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The impact of highly electron withdrawing carboxylato ligands on the stability and activity of platinum(IV) pro-drugs. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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93
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Perić M, Kyne SH, Gruden M, Rodić M, Jeremić D, Stanković DM, Brčeski I. Synthesis, structural and DFT analysis of a binuclear nickel(II) complex with the 1,4-bis[2-[2-(diphenylphosphino)benzylidene]]phthalazinylhydrazone ligand. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02405-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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94
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Miller RG, Vázquez-Hernández M, Prochnow P, Bandow JE, Metzler-Nolte N. A CuAAC Click Approach for the Introduction of Bidentate Metal Complexes to a Sulfanilamide-Derived Antibiotic Fragment. Inorg Chem 2019; 58:9404-9413. [PMID: 31246015 DOI: 10.1021/acs.inorgchem.9b01186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A simple "click-chemistry" approach was employed in order to functionalize the known antibiotic fragment sulfanilamide with a bidentate pyridyl-triazole pocket, which allowed for the synthesis of ruthenium(II) and rhenium(I) carbonyl chloride complexes. Six new complexes were prepared and comprehensively characterized, including five single crystal X-ray structures, photophysical characterization, and testing for antimicrobial activity. Interestingly, functionalization of the pyridine ring with an ortho-hydroxymethyl group resulted in a greater than 100-fold increase in the rate of ligand release in a dimethylsulfoxide solution. Subsequent studies indicated this process could be further accelerated by irradiation with 265 nm light. Structural characterization of four of the complexes indicates that this is the result of a lengthening and weakening of the Re-NPyridine bond (average (Ltri) = 2.19 Å vs LtriOH = 2.25 Å) due to the steric influence of the hydroxymethyl group. The organometallic rhenium(I) pyridyl-triazole functionality maintains its characteristic fluorescent properties despite the presence of the sulfonamide moiety. Two of the compounds showed modest antimicrobial activity against methicillin-resistant Staphylococcus aureus, whereas the structurally similar sulfamethoxazole alone showed no activity under the same conditions.
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Affiliation(s)
- Reece G Miller
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitaetsstrasse 150 , D-44801 , Bochum , Germany
| | - Melissa Vázquez-Hernández
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Pascal Prochnow
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Julia E Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology , Ruhr University Bochum , Universitaetsstrasse 150 , 44780 Bochum , Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitaetsstrasse 150 , D-44801 , Bochum , Germany
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95
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Mondal SS, Chatterjee M, Tiwari RK, Behera J, Chanda N, Biswas S, Saha TK. Hexanuclear Zn(II) and Mononuclear Cu(II) Complexes containing imino phenol ligands: Exploitation of their Catalytic and Biological Perspectives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shyam Sundar Mondal
- Department of ChemistryNational Institute of Technology Durgapur West Bengal India 713209
| | - Manosree Chatterjee
- Department of Materials Processing and Microsystems LaboratoryCSIR‐Central Mechanical Engineering Research Institute West Bengal India 713209
| | - Ranjay K. Tiwari
- Department of ChemistryNational Institute of Science Education and Research Bhubaneswar Odisha India 752050
- Homi Bhabha National Institute Mumbai India 400094
| | - J.N. Behera
- Department of ChemistryNational Institute of Science Education and Research Bhubaneswar Odisha India 752050
- Homi Bhabha National Institute Mumbai India 400094
| | - Nripen Chanda
- Department of Materials Processing and Microsystems LaboratoryCSIR‐Central Mechanical Engineering Research Institute West Bengal India 713209
| | - Sourav Biswas
- Department of ChemistryNational Institute of Technology Durgapur West Bengal India 713209
| | - Tanmoy Kumar Saha
- Department of ChemistryNational Institute of Technology Durgapur West Bengal India 713209
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96
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Huang Y, Hang X, Jiang X, Zeng L, Jia J, Xie Y, Li F, Bi H. In Vitro and In Vivo Activities of Zinc Linolenate, a Selective Antibacterial Agent against Helicobacter pylori. Antimicrob Agents Chemother 2019; 63:e00004-19. [PMID: 30936098 PMCID: PMC6535540 DOI: 10.1128/aac.00004-19] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 03/22/2019] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori is a major global pathogen, and its infection represents a key factor in the etiology of various gastric diseases, including gastritis, peptic ulcers, and gastric carcinoma. The efficacy of current standard treatment for H. pylori infection including two broad-spectrum antibiotics is compromised by toxicity toward the gut microbiota and the development of drug resistance, which will likely only be resolved through novel and selective antibacterial strategies. Here, we synthesized a small molecule, zinc linolenate (ZnLla), and investigated its therapeutic potential for the treatment of H. pylori infection. ZnLla showed effective antibacterial activity against standard strains and drug-resistant clinical isolates of H. pyloriin vitro with no development of resistance during continuous serial passaging. The mechanisms of ZnLla action against H. pylori involved the disruption of bacterial cell membranes and generation of reactive oxygen species. In mouse models of multidrug-resistant H. pylori infection, ZnLla showed in vivo killing efficacy comparable and superior to the triple therapy approach when use as a monotherapy and a combined therapy with omeprazole, respectively. Moreover, ZnLla treatment induces negligible toxicity against normal tissues and causes minimal effects on both the diversity and composition of the murine gut microbiota. Thus, the high degree of selectivity of ZnLla for H. pylori provides an attractive candidate for novel targeted anti-H. pylori treatment.
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Affiliation(s)
- Yanqiang Huang
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xudong Hang
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xueqing Jiang
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Liping Zeng
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jia Jia
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yong Xie
- Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Fei Li
- Department of Medicinal Chemistry, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongkai Bi
- Department of Pathogen Biology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
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97
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Castro LC, Jaconiano YR, Evangelista TCS, Ferreira SB, Scarpellini M. Synthesis and characterization of new galactosylated-based N 2O-donors tridentate ligands. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1599953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lidiane C. Castro
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmim R. Jaconiano
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tereza C. S. Evangelista
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sabrina B. Ferreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marciela Scarpellini
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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98
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Swaminathan S, Haribabu J, Kalagatur NK, Konakanchi R, Balakrishnan N, Bhuvanesh N, Karvembu R. Synthesis and Anticancer Activity of [RuCl 2(η 6-arene)(aroylthiourea)] Complexes-High Activity against the Human Neuroblastoma (IMR-32) Cancer Cell Line. ACS OMEGA 2019; 4:6245-6256. [PMID: 31459766 PMCID: PMC6648990 DOI: 10.1021/acsomega.9b00349] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 03/22/2019] [Indexed: 05/11/2023]
Abstract
Eight new organometallic Ru(II)-arene complexes of the type [RuCl2(η6-arene)(η1-S-aroylthiourea)] (arene = p-cymene or benzene) were synthesized in order to evaluate the effect of the arene moiety and the substituent of the aroylthiourea ligand on the cytotoxicity of the complexes. The ligands (L1 and L2) and complexes (1-8) were characterized using analytical and spectroscopic (UV-visible, infrared, 1H NMR, 13C NMR, and mass) methods. The structure of the ligands (L1 and L2) and complexes (1 and 3-6) was obtained from single-crystal X-ray diffraction studies. The cytotoxicity of the complexes was evaluated against four different cancer cell lines: MCF-7 (breast), COLO 205 (colon), A549 (lung), and IMR-32 (neuroblastoma). All the complexes showed good cytotoxicity and the highest was in the IMR-32 cell line, which articulates the specificity of these complexes toward the IMR-32 cancer cell line. The complexes 5, 7, and 8 exhibited remarkable cytotoxicity in the entire cancer cell lines tested, which was comparable with the standard drug, cisplatin. The anticancer mechanism of the complexes 3 and 7 in IMR-32 cells was evaluated by bright-field microscopy, intracellular reactive oxygen species (ROS), mitochondrial membrane potential (MMP), DNA damage, and caspase-3 analyses. The cells treated with the complexes showed upregulated caspase-3 compared to the control, and it was found that ROS and MMP were dose-dependent on analysis. Also, bright-field microscopy and 4',6-diamidino-2-phenylindole (DAPI) staining have correspondingly shown cellular membrane blebbing and DNA damage, which were morphological hallmarks of apoptosis. The study concluded that the complexes promoted the oxidative stress-mediated apoptotic death of the cancer cells through the generation of intracellular ROS, depletion of MMP, and damage of the nuclear material.
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Affiliation(s)
- Srividya Swaminathan
- Department
of Chemistry, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
| | - Jebiti Haribabu
- Department
of Chemistry, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
| | - Naveen Kumar Kalagatur
- DRDO-BU-Centre
for Life Sciences, Bharathiar Univeristy Campus, Coimbatore 641046, Tamil Nadu, India
| | - Ramaiah Konakanchi
- Department
of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India
| | - Nithya Balakrishnan
- Department
of Chemistry, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
| | - Nattamai Bhuvanesh
- Department
of Chemistry, Texas A & M University, College Station, Texas 77842, United States
| | - Ramasamy Karvembu
- Department
of Chemistry, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
- E-mail:
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99
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Zhao J, Liu N, Sun S, Gou S, Wang X, Wang Z, Li X, Zhang W. Light-activated ruthenium (II)-bicalutamide prodrugs for prostate cancer. J Inorg Biochem 2019; 196:110684. [PMID: 31054419 DOI: 10.1016/j.jinorgbio.2019.03.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 01/25/2023]
Abstract
Targeted delivery of clinically approved anticancer drug to tumor sites is an effective way to achieve enhanced drug efficacy as well as reduced side effects and toxicity. Here bicalutamide is caged by the Ru(II) center through the nitrile group, and three photoactive Ru(II) complexes were designed and synthesized. Docking study showed that the ruthenium(II) fragments can effectively block the binding of complexes 1-3 with AR (androgen receptor) owing to the large steric structures, thus bicalutamide in complexes 1-3 could not interact with AR-LBD (ligand binding domain). Once irradiation with blue light (465nm), complexes 1-3 can release bicalutamide and anticancer Ru(II) fragments, which possesses dual-action of AR binding and DNA interaction simultaneously. In vitro cytotoxicity study on these complexes further confirmed that complexes 1-3 exhibited considerable cytotoxicity upon irradiation with blue light. Significantly, complex 3 could be activated at 660nm, which greatly increases the scope of complex 3 to treat deeper within tissue. Theoretical calculations showed that the lowest singlet excitation energy of complex 3 is lower than those of complexes 1-2, which explains the experimental results well. Moreover, the 3MC (metal centered) states of these complexes are more stable than their 3MLCT (metal to ligand charge transfer) states, indicating that the photoactive processes of these complexes are likely to result in ligand dissociation.
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Affiliation(s)
- Jian Zhao
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
| | - Nannan Liu
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
| | - Shuchen Sun
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
| | - Shaohua Gou
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China.
| | - Xinyi Wang
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
| | - Zhimei Wang
- Research Center and School of Chemistry and Chemical Engineering, and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, China
| | - Xiaoyan Li
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China
| | - Wenjing Zhang
- The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China.
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100
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da Silva AFM, de Mello MVP, Gómez JG, Ferreira GB, Lanznaster M. Investigation of Cobalt(III)-Tetrachlorocatechol Complexes as Models for Catechol-Based Anticancer Prodrugs. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | | | - Javier G. Gómez
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niteroi RJ Brazil
| | - Glaucio Braga Ferreira
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niteroi RJ Brazil
| | - Mauricio Lanznaster
- Instituto de Química; Universidade Federal Fluminense; Outeiro S J Batista SN 24020-141 Niteroi RJ Brazil
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