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Rodrigues EG, Dobroff AS, Arruda DC, Tada DB, Paschoalin T, Polonelli L. A limitless Brazilian scientist: Professor Travassos and his contribution to cancer biology. Braz J Microbiol 2023; 54:2551-2560. [PMID: 37589929 PMCID: PMC10689629 DOI: 10.1007/s42770-023-01085-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/24/2023] [Indexed: 08/18/2023] Open
Abstract
Luiz Rodolpho Travassos, a Brazilian scientist recognized in several areas of research, began his studies in the field of oncology in the late 1970s when he took a sabbatical at the Memorial Sloan Kettering Cancer Center, NY, USA. At that time, the discovery and characterization of human melanoma glycoprotein antigens yielded important publications. This experience allowed 16 years later, and Dr. Travassos founded UNONEX, significantly contributing with discoveries in the area of oncology and training of researchers. This review will address all the contributions of team of researchers who, together with Dr. Travassos, collaborated with investigations into molecules and processes that lead to the development of melanoma.
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Affiliation(s)
- Elaine G Rodrigues
- Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil.
| | - Andrey S Dobroff
- University of New Mexico Comprehensive Cancer Center (UNMCCC), Albuquerque, USA
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico (UNM) School of Medicine, Albuquerque, USA
| | - Denise C Arruda
- Integrated Group of Biotechnology, University of Mogi das Cruzes, UMC, Mogi das Cruzes, SP, Brazil
| | - Dayane B Tada
- Laboratory of Nanomaterials and Nanotoxicology, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Thaysa Paschoalin
- Department of Biophysics, Federal University of São Paulo (Unifesp), São Paulo, SP, Brazil.
| | - Luciano Polonelli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
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Zanetti RD, da Cunha GA, Moreira MB, Farias RL, de Souza RF, de Godoy PR, Brassesco MS, Rocha FV, Lima MA, Mauro AE, Netto AV. Orthopalladated N,N-Dimethyl-1-Phenethylamine Compounds Containing 2,6-Lutidine: Synthesis, Dna Binding Studies and Cytotoxicity Evaluation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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3
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Albert J, Janabi BA, Granell J, Hashemi MS, Sainz D, Khosa MK, Calvis C, Messeguer R, Baldomà L, Badia J, Font-Bardia M. Synthesis and biological properties of palladium(II) cyclometallated compounds derived from (E)-2-((4-hydroxybenzylidene)amino)phenol. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Sarkar O, Roy M, Biswal D, Ranjan Pramanik N, Paul S, Drew MGB, Chakrabarti S. Structural Exploration and Protein Binding Efficiencies of Binuclear Dioxidomolybdenum(VI) Complexes Constructed from ONO Chelator and Linear N−N Ditopic Spacer. ChemistrySelect 2022. [DOI: 10.1002/slct.202201412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Oiendrilla Sarkar
- Department of Chemistry University College of Science 92, Acharya Prafulla Chandra Road Kolkata 700009, West Bengal India
| | - Malini Roy
- Department of Chemistry University College of Science 92, Acharya Prafulla Chandra Road Kolkata 700009, West Bengal India
| | - Debanjana Biswal
- Department of Chemistry University College of Science 92, Acharya Prafulla Chandra Road Kolkata 700009, West Bengal India
| | - Nikhil Ranjan Pramanik
- Department of Chemistry Bidhannagar College EB-2 Sector-1, Salt Lake, Kolkata 700064 India
| | - Suvendu Paul
- Department of Chemistry BITS-Pilani Hyderabad Campus Shameerpet Hyderabad 500078, Telangana India
| | - Michael G. B. Drew
- Department of Chemistry The University of Reading Whiteknights Reading RG66AD UK
| | - Syamal Chakrabarti
- Department of Chemistry University College of Science 92, Acharya Prafulla Chandra Road Kolkata 700009, West Bengal India
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Orthopalladated tetralone oxime compounds bearing tertiary phosphines: Synthesis, structure, biological and in silico studies. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Lighvan ZM, Khonakdar HA, Akbari A, Jahromi MD, Ramezanpour A, Kermagoret A, Heydari A, Jabbari E. Synthesis and biological evaluation of novel tetranuclear cyclopalladated complex bearing thiosemicarbazone scaffold ligand: Interactions with double‐strand DNA, coronavirus, and molecular modeling studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zohreh Mehri Lighvan
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
- Leibniz‐Institut für Polymerforschung Dresdene. V Dresden Germany
| | - Ali Akbari
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute Urmia University of Medical Sciences Urmia Iran
| | | | - Azar Ramezanpour
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | | | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences Bratislava Slovakia
| | - Esmaiel Jabbari
- Department of Chemical Engineering University of South Carolina Columbia South Carolina USA
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Kuijpers T, Blom B. Homo and heterobimetallic palladium and platinum complexes bearing μ-diphosphane bridges involved in biological studies. Eur J Med Chem 2021; 223:113651. [PMID: 34214843 DOI: 10.1016/j.ejmech.2021.113651] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/10/2021] [Accepted: 06/13/2021] [Indexed: 02/03/2023]
Abstract
Given the increasing reports of well-defined bimetallic molecular complexes as potential anticancer agents in the last decades, along with the prevalence of platinum in anticancer therapy, we report here a detailed survey of bimetallic platinum and palladium complexes investigated as potential anticancer agents. Specifically, we will concentrate on the synthesis, characterisation and biological (anticancer) studies of a sub-class of these agents, namely homo and heterobimetallic complexes bearing a bridging phosphane ligand of the type: [LnM1(μ-R2P(CH2)nPR2)M2Lm] (where M1 is platinum or palladium, M2 is any other transition metal, R = alkyl or aryl substituents, Ln or Lm are co-ligands, n = 1-6). We will review the in vitro and in vivo activities and any mechanistic anticancer studies of these complexes with a view of trying to delineate patterns in biological activity and structure-activity relationships (SAR). We do not include the review of bimetallic complexes in this class that have not undergone any anticancer testing, nor those that have been involved in other biological investigations unrelated to cancer studies.
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Affiliation(s)
- Talita Kuijpers
- Maastricht Science Programme, Faculty of Science and Engineering, Maastricht University, Paul-Henri Spaaklaan, 1, PO Box 616, 6200 MD, Maastricht, the Netherlands
| | - Burgert Blom
- Maastricht Science Programme, Faculty of Science and Engineering, Maastricht University, Paul-Henri Spaaklaan, 1, PO Box 616, 6200 MD, Maastricht, the Netherlands.
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Franich AA, Živković MD, Milovanović J, Arsenijević D, Arsenijević A, Milovanović M, Djuran MI, Rajković S. In vitro cytotoxic activities, DNA- and BSA-binding studies of dinuclear palladium(II) complexes with different pyridine-based bridging ligands. J Inorg Biochem 2020; 210:111158. [DOI: 10.1016/j.jinorgbio.2020.111158] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 02/06/2023]
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da Silva DAM, Santana FR, Katz S, Garcia DM, Teixeira D, Longo-Maugéri IM, Barbiéri CL. Protective Cellular Immune Response Induction for Cutaneous Leishmaniasis by a New Immunochemotherapy Schedule. Front Immunol 2020; 11:345. [PMID: 32194563 PMCID: PMC7062680 DOI: 10.3389/fimmu.2020.00345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 02/12/2020] [Indexed: 11/13/2022] Open
Abstract
The palladacycle complex DPPE 1.2 was previously shown to inhibit Leishmania (Leishmania) amazonensis infection in vitro and in vivo. The present study aimed to evaluate the effect of DPPE 1.2 associated with a recombinant cysteine proteinase, rLdccys1, and the adjuvant Propionibacterium acnes on L. (L.) amazonensis infection in two mouse strains, BALB/c, and C57BL/6. Treatment with this association potentiated the leishmanicidal effect of DPPE 1.2 resulting in a reduction of parasite load in both strains of mice which was higher compared to that found in groups treated with either DPPE 1.2 alone or associated with P. acnes or rLdccys1. The reduction of parasite load in both mice strains was followed by immunomodulation mediated by an increase of memory CD4+ and CD8+ T lymphocytes, IFN-γ levels and reduction of active TGF-β in treated animals. No infection relapse was observed 1 month after the end of treatment in mice which received DPPE 1.2 associated with rLdccys1 or rLdccys1 plus P. acnes in comparison to that exhibited by animals treated with DPPE 1.2 alone. Evaluation of serum levels of AST, ALT, urea, and creatinine showed no alterations among treated groups, indicating that this treatment schedule did not induce hepato or nephrotoxicity. These data indicate the potential use of this association as a therapeutic alternative for cutaneous leishmaniasis caused by L. (L) amazonensis.
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Affiliation(s)
- Danielle A M da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Fabiana R Santana
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Simone Katz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Daniel M Garcia
- Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Daniela Teixeira
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ieda M Longo-Maugéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Clara L Barbiéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Biswal D, Roy M, Pramanik NR, Paul S, Drew MGB, Chakrabarti S. The vital role of ditopic N– N bridging ligands with different lengths in the formation of new binuclear dioxomolybdenum( vi) complexes: synthesis, crystal structures, supramolecular framework and protein binding studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj03702h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Role of bis-(pyridyl) and bis-(imidazole) auxiliary ligands in the formation of supramolecular architectures and BSA binding with new binuclear dioxomolybdenum(vi) complexes.
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Affiliation(s)
- Debanjana Biswal
- Department of Chemistry
- University College of Science
- 92, Acharya Prafulla Chandra Road
- Kolkata 700009
- India
| | - Malini Roy
- Department of Chemistry
- University College of Science
- 92, Acharya Prafulla Chandra Road
- Kolkata 700009
- India
| | | | - Suvendu Paul
- Department of Chemistry
- University of Kalyani
- Kalyani
- Nadia
- India
| | - Michael G. B. Drew
- Department of Chemistry
- The University of Reading
- Whiteknights
- Reading RG6 6AD
- UK
| | - Syamal Chakrabarti
- Department of Chemistry
- University College of Science
- 92, Acharya Prafulla Chandra Road
- Kolkata 700009
- India
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11
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Organometallic binuclear Pd(II) complex: Synthesis, crystal structure and in-vitro antitumor activity study. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mirzadeh N, Reddy TS, Privér SH, Bhargava SK. Synthesis, anti-proliferative and apoptosis-inducing studies of palladacycles containing a diphosphine and a Sn,As-based chelate ligand. Dalton Trans 2019; 48:5183-5192. [PMID: 30838370 DOI: 10.1039/c8dt03875a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cleavage of the bromide bridges in [Pd2(μ-Br)2{κ2(Sn,As)-2-MeBrSnC6F4AsPh2}2] (1) by diphosphine ligands gave the mono- and dinuclear palladacycles [Pd(L)Br{κ2(Sn,As)-2-MeBrSnC6F4AsPh2}] [L = dppe (2) dppm (3), ortho-dppBz (4)] and [Pd2Br2(para-dppBz){κ2(Sn,As)-2-MeBrSnC6F4AsPh2}2] (5). The interactions of these complexes with DNA (CT-DNA) and proteins (human serum albumin) were studied by UV-Vis and fluorescence spectroscopy, respectively. The results confirmed the interaction of these palladium complexes with CT-DNA through groove binding, and their strong binding affinity to HSA. The anti-proliferative activities of complexes 1-5 were tested against four human cancer cell lines (HeLa, A549, PC-3, and HT1080) and normal keratinocytes (HaCaT). Among the series, the palladium(ii) complex containing the 1,2-bis(diphenylphosphino)benzene ligand (4) showed the highest cytotoxicity against HeLa, PC-3 and HT1080 cells, with IC50 values of 0.25 ± 0.08, 0.85 ± 0.11, and 0.66 ± 0.15 μM, respectively. Interestingly, compound 4 exhibited lower cytotoxic activity toward normal HaCaT cells (IC50 = 4.65 ± 0.16 μM). Additionally, this complex exhibited lower toxicity and better anti-cancer activity than cisplatin. Further mechanistic studies, including Hoechst staining and flow cytometry, confirmed that complex 4 induced G2/M phase cell cycle arrest and apoptotic cell death in HeLa cells.
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Affiliation(s)
- Nedaossadat Mirzadeh
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO BOX 2476, Melbourne 3001, Australia.
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Jahanian-Najafabadi A, Mirian M, Rohani F, Karami K, Hosseini Kharat M, Sadeghi-Aliabadi H. Novel Palladium Complex: Cytotoxicity against Cisplatin-resistant K562 Cells. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2019; 18:1323-1331. [PMID: 32641942 PMCID: PMC6934943 DOI: 10.22037/ijpr.2019.1100714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Today, development of resistance to anticancer drugs (including cisplatin) is noticed as a major problem. Recently several studies demonstrated that palladium complexes showed remarkable cytotoxic effects against K562 cell line and could be used efficiently for treatment of many human cancers including leukemia. Hereof, K562 cells were made resistant to cisplatin using increasing concentration of cisplatin up to 4.5 mM and then cytotoxic effect of synthesized palladium complex was evaluated on this sub-line using MTT assay. Annexin V/PI staining using flow cytometry and scanning electron microscopy (SEM) were performed to find out the mechanism of the observed cytotoxicity. Results indicated that tested compounds had a noticeable cytotoxic effect on K562 cells 80 times more than cisplatin. Palladium complex also showed significant cytotoxicity on resistant K562 sub-line. Flow cytometry and SEM results revealed that these compounds exert their cytotoxic effect via apoptosis and it could be concluded that the novel synthesized palladium complex might be a good candidate for replacing cisplatin in case of treatment of cisplatin resistant tumors.
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Affiliation(s)
- Ali Jahanian-Najafabadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mina Mirian
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Fatemeh Rohani
- Department of Pharmaceutical Chemistry, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Kazem Karami
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran.
| | | | - Hojjat Sadeghi-Aliabadi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
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Li X, Chen Y, Pang BP, Tan J, Li Y, Pullarkat SA, Leung P. Efficient Synthesis of Malonate Functionalized Chiral Phosphapalladacycles and their Catalytic Evaluation in Asymmetric Hydrophosphination of Chalcone. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xi‐Rui Li
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Yu Chen
- Department of Chemistry and Biochemistry Queens College of the City University of New York 65‐30 Kissena Blvd. 11367 Queens New York United States
- Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 Fifth Ave. 10016 New York New York United States
| | - Benjamin Piaoxiang Pang
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Jaeyu Tan
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Pak‐Hing Leung
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
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Zhou Y, Song T, Cao Y, Gong G, Zhang Y, Zhao H, Zhao G. Synthesis and characterization of planar chiral cyclopalladated ferrocenylimines: DNA/HSA interactions and in vitro cytotoxic activity. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.06.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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dos Santos IB, da Silva DAM, Paz FACR, Garcia DM, Carmona AK, Teixeira D, Longo-Maugéri IM, Katz S, Barbiéri CL. Leishmanicidal and Immunomodulatory Activities of the Palladacycle Complex DPPE 1.1, a Potential Candidate for Treatment of Cutaneous Leishmaniasis. Front Microbiol 2018; 9:1427. [PMID: 30018604 PMCID: PMC6038773 DOI: 10.3389/fmicb.2018.01427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 06/11/2018] [Indexed: 01/18/2023] Open
Abstract
The present study focused on the activity of the palladacycle complex DPPE 1.1 on Leishmania (Leishmania) amazonensis. Promastigotes of L. (L.) amazonensis were destroyed in vitro by nanomolar concentrations of DPPE 1.1, whereas intracellular amastigotes were killed at drug concentrations fivefold less toxic than those harmful to macrophages. L. (L.) amazonensis-infected BALB/c mice were treated by intralesional injection of DPPE 1.1. Animals treated with 3.5 and 7.0 mg/kg of DPPE 1.1 showed a significant decrease of foot lesion sizes and a parasite load reduction of 93 and 99%, respectively, when compared to untreated controls. Furthermore, DPPE 1.1 was non-toxic to treated animals. The cathepsin B activity of L. (L.) amazonensis amastigotes was inhibited by DPPE 1.1 as demonstrated spectrofluorometrically by use of a specific fluorogenic substrate. Analysis of T-cells populations in mice treated with DPPE 1.1 and untreated controls was performed by fluorescence-activated cell sorter (FACS). IFN-γ was measured in supernatants of lymphocytes from popliteal and inguinal lymph nodes isolated from treated and untreated mice and stimulated with L. (L.) amazonensis amastigotes extract and active TGF-β was evaluated in supernatants of foot lesions; both dosages were carried out by means of a double-sandwich ELISA assay. A significant increase of TCD4+ and TCD8+ lymphocytes and IFN-γ secretion was displayed in mice treated with DPPE 1.1 compared to untreated animals, whereas a significant reduction of active TGF-β was observed in treated mice. These findings open perspectives for further investment in DPPE 1.1 as an alternative option for the chemotherapy of cutaneous leishmaniasis.
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Affiliation(s)
- Isabela B. dos Santos
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Danielle A. M. da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Fabiana A. C. R. Paz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Daniel M. Garcia
- Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Adriana K. Carmona
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Daniela Teixeira
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ieda M. Longo-Maugéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Simone Katz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Clara L. Barbiéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Gong G, Cao Y, Wang F, Zhao G. Planar Chiral Ferrocene Cyclopalladated Derivatives Induce Caspase-Dependent Apoptosis and Antimetastasis in Cancer Cells. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00897] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Guidong Gong
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
| | - Yuan Cao
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
| | - Fei Wang
- Key Laboratory of Natural Medicine and Clinical Translation, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR Chian
| | - Gang Zhao
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
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Anticancer evaluation and drug delivery of new palladium(II) complexes based on the chelate of alendronate onto hydroxyapatite nanoparticles. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Tabrizi L, Chiniforoshan H. New Ru II pincer complexes: synthesis, characterization and biological evaluation for photodynamic therapy. Dalton Trans 2018; 45:18333-18345. [PMID: 27805201 DOI: 10.1039/c6dt03502g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Three new ruthenium(ii) complexes of NCN pincer and phenylcyanamide derivative ligands of the formula [Ru(L)(Ph2phen)(3,5-(NO2)2pcyd)], 1, [Ru(L)(Me2phen)(3,5-(NO2)2pcyd)], 2, and [Ru(L)(Cl2phen)(3,5-(NO2)2pcyd)], 3 (HL: 5-methoxy-1,3-bis(1-methyl-1H-benzo[d]imidazol-2-yl)benzene, 3,5-(NO2)2pcyd: 3,5-(NO2)2pcyd, Ph2phen: 4,7-diphenyl-1,10-phenanthroline, Me2phen: 4,7-dimethyl-1,10-phenanthroline, Cl2phen: 4,7-dichloro-1,10-phenanthroline) have been synthesized and studied as potential photosensitizers (PSs) in photodynamic therapy (PDT). The complexes exhibited promising 1O2 production quantum yields comparable with PSs available on the market. The DNA-binding interactions of the complexes with calf thymus DNA have been studied by absorption, emission, and viscosity measurements. All complexes cleave SC-DNA efficiently on photoactivation at 350 nm with the formation of singlet oxygen (1O2) and hydroxyl radicals (˙OH) in type-II and photoredox pathways. Complexes 1-3 showed very good uptake in cervical cancer cells (HeLa). The compounds studied were found to exhibit low toxicity against HeLa cells (IC50 > 300 μM) and, remarkably, on non-cancerous MRC-5 cells (IC50 > 100 μM) in the dark. However, 1 showed very promising behavior with an increment of about 90 times, in its cytotoxicity upon light illumination at 420 nm in addition to very good human plasma stability.
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Affiliation(s)
- Leila Tabrizi
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hossein Chiniforoshan
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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Gong G, Cao Y, Qian H, Zhou Y, Zhao H, Li L, Wang F, Zhao G. Assessment of the antitumor activity of a cyclopalladated ferrocene compound assisted by a dual-targeting drug delivery system. Chem Commun (Camb) 2018; 54:8312-8315. [DOI: 10.1039/c8cc03308k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nano-micelle HACD@CP could target to CD44 and induced MDA-MB-468 cells apoptosis.
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Affiliation(s)
- Guidong Gong
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Yuan Cao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Hongyun Qian
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Yangyang Zhou
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Haihang Zhao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Ling Li
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Fei Wang
- Key Laboratory of Natural Medicine and Clinical Translation
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Gang Zhao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
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21
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Karami K, Alinaghi M, Amirghofran Z, Lipkowski J, Momtazi-borojeni AA. A saccharinate-bridged palladacyclic dimer with a Pd–Pd bond: experimental and molecular docking studies of the interaction with DNA and BSA and in vitro cytotoxicity against human cancer cell lines. NEW J CHEM 2018. [DOI: 10.1039/c7nj03138f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, characterization and biological activities of a saccharinate-bridged palladacyclic dimer are reported in this work.
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Affiliation(s)
- Kazem Karami
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Iran
| | - Moloud Alinaghi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Iran
| | - Zahra Amirghofran
- Immunology Department
- Shiraz University of Medical Sciences
- Shiraz 71454
- Iran
| | - Janusz Lipkowski
- Institute of Physical Chemistry
- Polish Academy of Sciences
- Kasprzaka 44/52
- 01-224 Warsaw
- Poland
| | - Amir Abbas Momtazi-borojeni
- Department of Medical Biotechnology
- School of Medicine
- Student Research Committee
- Mashhad University of Medical Sciences
- Mashhad
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22
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Velásquez AMA, Ribeiro WC, Venn V, Castelli S, Camargo MSD, de Assis RP, de Souza RA, Ribeiro AR, Passalacqua TG, da Rosa JA, Baviera AM, Mauro AE, Desideri A, Almeida-Amaral EE, Graminha MAS. Efficacy of a Binuclear Cyclopalladated Compound Therapy for Cutaneous Leishmaniasis in the Murine Model of Infection with Leishmania amazonensis and Its Inhibitory Effect on Topoisomerase 1B. Antimicrob Agents Chemother 2017; 61:e00688-17. [PMID: 28507113 PMCID: PMC5527659 DOI: 10.1128/aac.00688-17] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 05/02/2017] [Indexed: 12/29/2022] Open
Abstract
Leishmaniasis is a disease found throughout the (sub)tropical parts of the world caused by protozoan parasites of the Leishmania genus. Despite the numerous problems associated with existing treatments, pharmaceutical companies continue to neglect the development of better ones. The high toxicity of current drugs combined with emerging resistance makes the discovery of new therapeutic alternatives urgent. We report here the evaluation of a binuclear cyclopalladated complex containing Pd(II) and N,N'-dimethylbenzylamine (Hdmba) against Leishmania amazonensis The compound [Pd(dmba)(μ-N3)]2 (CP2) inhibits promastigote growth (50% inhibitory concentration [IC50] = 13.2 ± 0.7 μM) and decreases the proliferation of intracellular amastigotes in in vitro incubated macrophages (IC50 = 10.2 ± 2.2 μM) without a cytotoxic effect when tested against peritoneal macrophages (50% cytotoxic concentration = 506.0 ± 10.7 μM). In addition, CP2 was also active against T. cruzi intracellular amastigotes (IC50 = 2.3 ± 0.5 μM, selective index = 225), an indication of its potential for use in Chagas disease therapy. In vivo assays using L. amazonensis-infected BALB/c showed an 80% reduction in parasite load compared to infected and nontreated animals. Also, compared to amphotericin B treatment, CP2 did not show any side effects, which was corroborated by the analysis of plasma levels of different hepatic and renal biomarkers. Furthermore, CP2 was able to inhibit Leishmania donovani topoisomerase 1B (Ldtopo1B), a potentially important target in this parasite. (This study has been registered at ClinicalTrials.gov under identifier NCT02169141.).
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Affiliation(s)
- Angela Maria Arenas Velásquez
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, Brazil
| | - Willian Campos Ribeiro
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
| | - Vutey Venn
- University of Rome, Tor Vergata, Rome, Italy
| | | | | | - Renata Pires de Assis
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
| | | | | | - Thaís Gaban Passalacqua
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, Brazil
| | - João Aristeu da Rosa
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
| | - Amanda Martins Baviera
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
| | | | | | | | - Marcia A S Graminha
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, Brazil
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23
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Endo and exo cyclopalladated ( E )- N -([1,1'-biphenyl]-2-yl)-1-mesitylmethanimines: Anticancer, antibacterial and antioxidant activities. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Muñoz JE, Rossi DCP, Ishida K, Spadari CC, Melhem MSC, Garcia DM, Caires ACF, Taborda CP, Rodrigues EG. Antifungal Activity of the Biphosphinic Cyclopalladate C7a against Candida albicans Yeast Forms In Vitro and In Vivo. Front Microbiol 2017; 8:771. [PMID: 28515716 PMCID: PMC5413578 DOI: 10.3389/fmicb.2017.00771] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/13/2017] [Indexed: 11/13/2022] Open
Abstract
Vulvovaginal and invasive candidiasis are frequent conditions in immunosuppressed individuals caused by Candida albicans and non-albicans Candida spp. Fluconazole and Amphotericin B are the main drugs used to fight the infection. However, resistance to fluconazole and other azole antifungal drugs is an important clinical problem that encourages the search for new therapeutic alternatives. In this work, we evaluate the antifungal activity of the biphosphinic cyclopalladate C7a in the in vitro and in vivo model. Our results showed fungicidal activity, with low values of minimal inhibitory concentrations and minimum fungicidal concentrations, even for fluconazole and/or miconazole resistant Candida isolates. Fluorescence microscopy and transmission electron microscopy revealed that the compound was able to inhibit the formation of hyphae/pseudohyphae and, moreover, promoted morphological alterations in cellular organelles and structures, such as disruption of cell wall, apparent mitochondrial swelling, chromatin marginalization into the nuclei and increased numbers of electron-lucent vacuoles. C7a significantly decreased the biofilm formation and reduced the viability of yeast cells in mature biofilms when tested against a virulent C. albicans strain. In vivo assays demonstrated a significant decrease of fungal burden in local (vaginal canal) and disseminated (kidneys) infection. In addition, we observed a significant increase in the survival of the systemically infected animals treated with C7a. Our results suggest C7a as a novel therapeutic agent for vaginal and disseminated candidiasis, and an alternative for conventional drug-resistant Candida.
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Affiliation(s)
- Julian E Muñoz
- Department of Microbiology, Biomedical Sciences Institute, University of São PauloSão Paulo, Brazil.,Faculty of Health Sciences, Colegio Mayor de Cundinamarca UniversityBogotá, Colombia
| | - Diego C P Rossi
- Department of Microbiology, Biomedical Sciences Institute, University of São PauloSão Paulo, Brazil
| | - Kelly Ishida
- Department of Microbiology, Biomedical Sciences Institute, University of São PauloSão Paulo, Brazil
| | - Cristina C Spadari
- Department of Microbiology, Biomedical Sciences Institute, University of São PauloSão Paulo, Brazil
| | - Marcia S C Melhem
- Parasitology Section, Technical Division of Medical Biology, Instituto Adolfo LutzSão Paulo, Brazil
| | - Daniel M Garcia
- Department of Pharmacology, Federal University of São PauloSão Paulo, Brazil
| | - Antonio C F Caires
- Interdisciplinary Center for Biochemical Investigation, University of Mogi das CruzesMogi das Cruzes, Brazil
| | - Carlos P Taborda
- Department of Microbiology, Biomedical Sciences Institute, University of São PauloSão Paulo, Brazil.,Laboratory of Medical Mycology-LIM53/IMTSP, University of São PauloSão Paulo, Brazil
| | - Elaine G Rodrigues
- Department of Microbiology, Immunology and Parasitology, Paulista School of Medicine, Federal University of São Paulo (EPM-UNIFESP)São Paulo, Brazil
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25
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Lazarević T, Rilak A, Bugarčić ŽD. Platinum, palladium, gold and ruthenium complexes as anticancer agents: Current clinical uses, cytotoxicity studies and future perspectives. Eur J Med Chem 2017; 142:8-31. [PMID: 28442170 DOI: 10.1016/j.ejmech.2017.04.007] [Citation(s) in RCA: 270] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 11/18/2022]
Abstract
Metallodrugs offer potential for unique mechanism of drug action based on the choice of the metal, its oxidation state, the types and number of coordinated ligands and the coordination geometry. This review illustrates notable recent progress in the field of medicinal bioinorganic chemistry as many new approaches to the design of innovative metal-based anticancer drugs are emerging. Current research addressing the problems associated with platinum drugs has focused on other metal-based therapeutics that have different modes of action and on prodrug and targeting strategies in an effort to diminish the side-effects of cisplatin chemotherapy. Examples of metal compounds and chelating agents currently in clinical use, clinical trials or preclinical development are highlighted.
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Affiliation(s)
- Tatjana Lazarević
- University of Kragujevac, Faculty of Medicine, S. Marković 69, 34000, Kragujevac, Serbia
| | - Ana Rilak
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia.
| | - Živadin D Bugarčić
- University of Kragujevac, Faculty of Science, R. Domanovića 12, P. O. Box 60, 34000 Kragujevac, Serbia.
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26
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Paladi CS, da Silva DAM, Motta PD, Garcia DM, Teixeira D, Longo-Maugéri IM, Katz S, Barbiéri CL. Treatment of Leishmania (Leishmania) Amazonensis-Infected Mice with a Combination of a Palladacycle Complex and Heat-Killed Propionibacterium acnes Triggers Protective Cellular Immune Responses. Front Microbiol 2017; 8:333. [PMID: 28321209 PMCID: PMC5337482 DOI: 10.3389/fmicb.2017.00333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 02/17/2017] [Indexed: 12/12/2022] Open
Abstract
Palladacycle complex DPPE 1.2 was previously reported to inhibit the in vitro and in vivo infection by Leishmania (Leishmania) amazonensis. The aim of the present study was to compare the effect of DPPE 1.2, in association with heat-killed Propionibacterium acnes, on L. (L.) amazonensis infection in two mouse strains, BALB/c and C57BL/6, and to evaluate the immune responses of the treated animals. Foot lesions of L. (L.) amazonensis-infected mice were injected with DPPE 1.2 alone, or associated with P. acnes as an adjuvant. Analysis of T-cell populations in the treated mice and in untreated controls was performed by FACS. Detection of IFN-γ-secreting lymphocytes was carried out by an ELISPOT assay and active TGF-β was measured by means of a double-sandwich ELISA test. The treatment with DPPE 1.2 resulted in a significant reduction of foot lesion sizes and parasite burdens in both mouse strains, and the lowest parasite burden was found in mice treated with DPPE 1.2 plus P. acnes. Mice treated with DPPE 1.2 alone displayed a significant increase of TCD4+ and TCD8+ lymphocytes and IFN-γ secretion which were significantly higher in animals treated with DPPE 1.2 plus P. acnes. A significant reduction of active TGF-β was observed in mice treated with DPPE 1.2 alone or associated with P. acnes. Moreover, DPPE 1.2 associated to P. acnes was non-toxic to treated animals. The destruction of L. (L.) amazonensis by DPPE 1.2 was followed by host inflammatory responses which were exacerbated when the palladacycle complex was associated with P. acnes.
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Affiliation(s)
- Carolina S Paladi
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Danielle A M da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Priscila D Motta
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Daniel M Garcia
- Departamento de Farmacologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Daniela Teixeira
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Ieda M Longo-Maugéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Simone Katz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
| | - Clara L Barbiéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo São Paulo, Brazil
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27
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Shanmugapriya A, Jain R, Sabarinathan D, Kalaiarasi G, Dallemer F, Prabhakaran R. Structurally different mono-, bi- and trinuclear Pd(ii) complexes and their DNA/protein interaction, DNA cleavage, and anti-oxidant, anti-microbial and cytotoxic studies. NEW J CHEM 2017. [DOI: 10.1039/c7nj01556a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new structurally different Pd(ii) complexes was obtained by the reactions between K2[PdCl4], 3-methoxysalicylaldehyde-4(N)-substituted thiosemicarbazone [H2L1–H2L4] and bis(diphenylphosphino)ethane [dppe].
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Affiliation(s)
- A. Shanmugapriya
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - Ruchi Jain
- Department of MRDG
- Indian Institute of Science
- Bangalore 560012
- India
| | - D. Sabarinathan
- Department of Microbial Biotechnology
- Bharathiar University
- Coimbatore – 641 046
- India
| | - G. Kalaiarasi
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - F. Dallemer
- Lab MADIREL CNRS UMR 7246
- Aix Marseille University
- 13397 Marseille Cedex 20
- France
| | - R. Prabhakaran
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
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28
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Hadadzadeh H, Farrokhpour H, Jannesari Z, Amirghofran Z. Experimental and ONIOM computational evaluation of DNA- and BSA-binding and cytotoxic activity of a mononuclear Pd(II) complex with piroxicam. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.08.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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29
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Alam MN, Huq F. Comprehensive review on tumour active palladium compounds and structure–activity relationships. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Pruchnik H, Lis T, Latocha M, Zielińska A, Pruchnik FP. Palladium(II) complexes with tris(2-carboxyethyl)phosphine, structure, reactions and cytostatic activity. J Inorg Biochem 2016; 156:14-21. [DOI: 10.1016/j.jinorgbio.2015.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/25/2015] [Accepted: 12/08/2015] [Indexed: 10/22/2022]
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31
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Kosović M, Jaćimović Ž, Bugarčić ŽD, Petrović BV. Kinetics and mechanism of the substitution reactions of some bifunctional palladium(II) complexes with different nitrogen-donor heterocycles. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-0008-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Cyclopalladated Compound 7a Induces Apoptosis- and Autophagy-Like Mechanisms in Paracoccidioides and Is a Candidate for Paracoccidioidomycosis Treatment. Antimicrob Agents Chemother 2015; 59:7214-23. [PMID: 26349827 DOI: 10.1128/aac.00512-15] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 08/26/2015] [Indexed: 12/14/2022] Open
Abstract
Paracoccidioidomycosis (PCM), caused by Paracoccidioides species, is the main cause of death due to systemic mycoses in Brazil and other Latin American countries. Therapeutic options for PCM and other systemic mycoses are limited and time-consuming, and there are high rates of noncompliance, relapses, toxic side effects, and sequelae. Previous work has shown that the cyclopalladated 7a compound is effective in treating several kinds of cancer and parasitic Chagas disease without significant toxicity in animals. Here we show that cyclopalladated 7a inhibited the in vitro growth of Paracoccidioides lutzii Pb01 and P. brasiliensis isolates Pb18 (highly virulent), Pb2, Pb3, and Pb4 (less virulent) in a dose-response manner. Pb18 was the most resistant. Opportunistic Candida albicans and Cryptococcus neoformans were also sensitive. BALB/c mice showed significantly lighter lung fungal burdens when treated twice a day for 20 days with a low cyclopalladated 7a dose of 30 μg/ml/day for 30 days after intratracheal infection with Pb18. Electron microscopy images suggested that apoptosis- and autophagy-like mechanisms are involved in the fungal killing mechanism of cyclopalladated 7a. Pb18 yeast cells incubated with the 7a compound showed remarkable chromatin condensation, DNA degradation, superoxide anion production, and increased metacaspase activity suggestive of apoptosis. Autophagy-related killing mechanisms were suggested by increased autophagic vacuole numbers and acidification, as indicated by an increase in LysoTracker and monodansylcadaverine (MDC) staining in cyclopalladated 7a-treated Pb18 yeast cells. Considering that cyclopalladated 7a is highly tolerated in vivo and affects yeast fungal growth through general apoptosis- and autophagy-like mechanisms, it is a novel promising drug for the treatment of PCM and other mycoses.
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33
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Ning D, Cao Y, Zhang Y, Xia L, Zhao G. Structures and antitumor activities of planar chiral cyclopalladated ferrocene derivatives. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Albert J, Granell J, Qadir R, Quirante J, Calvis C, Messeguer R, Badía J, Baldomà L, Font-Bardia M, Calvet T. Cyclopalladated Benzophenone Imines: Synthesis, Antitumor Activity, Cell Accumulation, DNA Interaction, and Cathepsin B Inhibition. Organometallics 2014. [DOI: 10.1021/om501060f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Joan Albert
- Departament
de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut
de Biomedicina, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Jaume Granell
- Departament
de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut
de Biomedicina, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Romana Qadir
- Departament
de Química Inorgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Josefina Quirante
- Laboratori
de Química Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
- Institut
de Biomedicina, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Carme Calvis
- Biomed Division, LEITAT Technological Center, Parc Científic,
Edifici Hèlix, Baldiri Reixach 15-21, 08028 Barcelona, Spain
| | - Ramon Messeguer
- Biomed Division, LEITAT Technological Center, Parc Científic,
Edifici Hèlix, Baldiri Reixach 15-21, 08028 Barcelona, Spain
| | - Josefa Badía
- Departament
de Bioquímica i Biologia Molecular, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
- Institut
de Biomedicina, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Laura Baldomà
- Departament
de Bioquímica i Biologia Molecular, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
- Institut
de Biomedicina, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Departament
de Crystallografia, Mineralogia i Dipòsits Minerals, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
- Unitat
de Difracció de Raigs-X, Centre Científic
i Tecnològic de la Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain
| | - Teresa Calvet
- Departament
de Crystallografia, Mineralogia i Dipòsits Minerals, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
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35
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Kapdi AR, Fairlamb IJS. Anti-cancer palladium complexes: a focus on PdX2L2, palladacycles and related complexes. Chem Soc Rev 2014; 43:4751-77. [PMID: 24723061 DOI: 10.1039/c4cs00063c] [Citation(s) in RCA: 250] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Much success has been achieved with platinum-based chemotherapeutic agents, i.e. through interactions with DNA. The long-term application of Pt complexes is thwarted by issues, leading scientists to examine other metals such as palladium which could exhibit complementary modes of action (given emphasis wherever known). Over the last 10 years several research groups have focused on the application of an eclectic array of palladium complexes (of the type PdX2L2, palladacycles and related structures) as potential anti-cancer agents. This review therefore provides readers with an up to date account of the advances that have taken place over the past several decades.
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Affiliation(s)
- Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, 302, Advance Centre, Nathalal Parekh Road, Matunga, Mumbai-400019, India.
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36
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Bechara A, Barbosa CMV, Paredes-Gamero EJ, Garcia DM, Silva LS, Matsuo AL, Nascimento FD, Rodrigues EG, Caires ACF, Smaili SS, Bincoletto C. Palladacycle (BPC) antitumour activity against resistant and metastatic cell lines: the relationship with cytosolic calcium mobilisation and cathepsin B activity. Eur J Med Chem 2014; 79:24-33. [PMID: 24709226 DOI: 10.1016/j.ejmech.2014.03.073] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/24/2014] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
Abstract
The search for new compounds that induce p53-independent apoptosis is the focus of many studies in cancer biology because these compounds could be more specific and would overcome chemotherapy resistance. In this study, we evaluated the in vitro antitumour activity of a Biphosphinic Palladacycle Complex (BPC) and extended preclinical studies to an in vivo model. Saos-2 cells, a p53-null human osteosarcoma drug-resistant cell line, were treated with BPC in the presence or absence of a cathepsin B inhibitor and a calcium chelator (CA074 and BAPTA-AM, respectively), and several parameters related to apoptosis were evaluated. Preclinical studies were performed with mice that were intravenously inoculated with murine melanoma B16F10-Nex2 cells and treated intraperitoneally (i.p.) with BPC (8 mg/kg/day) for ten consecutive days, when lung metastatic nodules were counted. In vitro data show that BPC induces cell death in Saos-2 cells mainly by apoptosis, which was accompanied by the effector caspase-3 activation. These events are most likely related to Bax translocation and increased cytosolic calcium mobilisation, mainly from intracellular compartments. Lysosomal Membrane Permeabilisation (LMP) was also observed after 12 h of BPC exposure. Interestingly, BAPTA-AM and CA074 significantly decreased BPC cytotoxicity, suggesting that both calcium and cathepsin B are required for BPC antitumour activity. In vivo studies demonstrated that BPC protects mice against murine metastatic melanoma. In conclusion, BPC complex is an effective anticancer compound against metastatic murine melanoma. This complex is cytotoxic to the drug-resistant osteosarcoma Saos-2 human tumour cells by inducing apoptosis triggered by calcium signalling and a lysosomal-dependent pathway.
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Affiliation(s)
- Alexandre Bechara
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Biofísica, EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Biofísica, EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Daniel M Garcia
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Luís S Silva
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Alisson L Matsuo
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | | | - Elaine G Rodrigues
- Unidade de Oncologia Experimental (UNONEX), EPM, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Antonio C F Caires
- Centro Interdisciplinar de Investigação Bioquímica (CIIB), Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil
| | - Soraya S Smaili
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil
| | - Claudia Bincoletto
- Departamento de Farmacologia, EPM, Universidade Federal de São Paulo (UNIFESP), Rua Três de maio, 100 - 2nd Floor, Vila Clementino, São Paulo, SP, Brazil.
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Moraes VWR, Caires ACF, Paredes-Gamero EJ, Rodrigues T. Organopalladium compound 7b targets mitochondrial thiols and induces caspase-dependent apoptosis in human myeloid leukemia cells. Cell Death Dis 2013; 4:e658. [PMID: 23744358 PMCID: PMC3702286 DOI: 10.1038/cddis.2013.190] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 05/04/2013] [Accepted: 05/07/2013] [Indexed: 12/11/2022]
Abstract
The advances in the treatment of chronic myeloid leukemia (CML) during the last years were also accompanied by the development of evading strategies by tumor cells, resulting in chemotherapy resistance in some patients. Patented organopalladium compounds derived from the reaction of N,N-dimethyl-1-phenethylamine (dmpa) with [1,2-ethanebis(diphenylphosphine)] (dppe) exhibited a potent antitumor activity in vivo and in vitro in melanoma cells. We showed here that the cyclopalladated derivative [Pd2(R(+))C(2), N-dmpa)2(μ-dppe)Cl2], named compound 7b, was highly effective to promote cell death in the K562 human leukemia cells and its mechanisms of action were investigated. It was shown that compound 7b was able to promote exclusively apoptotic cell death in K562 cells associated to cytochrome c release and caspase 3 activation. This cytotoxic effect was not observed in normal peripheral mononuclear blood cells. The compound 7b-induced intrinsic apoptotic pathway was triggered by the protein thiol oxidation that resulted in the dissipation of the mitochondrial transmembrane potential. The preventive effect of the dithiothreitol on the compound 7b-induced cell death and all downstream events associated to apoptosis confirmed that death signal was elicited by the thiol oxidation. These findings contribute to the elucidation of the palladacycle 7b-induced cell death mechanism and present this compound as a promising drug in the CML antitumor chemotherapy.
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Affiliation(s)
- V W R Moraes
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), São Paulo, Brazil
| | - A C F Caires
- Centro Interdisciplinar de Investigação Bioquímica (CIIB), Universidade de Mogi das Cruzes, São Paulo, Brazil
| | - E J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - T Rodrigues
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), São Paulo, Brazil
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Boff B, Gaiddon C, Pfeffer M. Cancer cell cytotoxicity of cyclometalated compounds obtained with osmium(II) complexes. Inorg Chem 2013; 52:2705-15. [PMID: 23427955 DOI: 10.1021/ic302779q] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A library of 29 organoosmium compounds has been built up with known and novel cyclometalated compounds obtained with C-N, N(∧)C(∧)N, and C(∧)N(∧)N ligands. All compounds have been tested for their in vitro cytotoxic properties against A172, a tumor cell line derived from a human glioblastoma, this affording a contrasted picture of the activities of the compounds gathered in this study. Some compounds displayed good to excellent activities, some of them showing IC50 in the nanomolar range. The level of activity was tentatively correlated to several physicochemical properties of the compounds such as their E(0)1/2(Os(III/II)) redox potential and their lipophilicity (log Po/w). A parallel with related ruthenium derivatives was tentatively proposed.
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Affiliation(s)
- Bastien Boff
- Institut de Chimie, UMR 7177 du CNRS, Université de Strasbourg, 4, rue Blaise Pascal, 67000 Strasbourg, France
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Karami K, kharat MH, Sadeghi-Aliabadi H, Lipkowski J, Mirian M. Dinuclear bridged biphosphinic and mononuclear cyclopalladated complexes of benzylamines: Synthesis, structural characterization and antitumor activity. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.11.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cyclopalladated benzophenone imines: Synthesis, cytotoxicity against human breast adenocarcinoma cell lines and DNA interaction. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.11.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kim YJ, Lee JH, Kim T, Ham J, Zheng ZN, Lee SW. C,N-Palladacycles Containing N-Heterocyclic Carbene and Azido Ligands - Effective Catalysts for Suzuki-Miyaura Cross-Coupling Reactions. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200988] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ferreira JG, Stevanato A, Santana AM, Mauro AE, Netto AV, Frem RC, Pavan FR, Leite CQ, Santos RH. Structure and antimycobacterial activity of the novel organometallic [Pd(C-bzan)(SCN)(dppp)] compound. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Carreira M, Calvo-Sanjuán R, Sanaú M, Marzo I, Contel M. Organometallic Palladium Complexes with a Water-Soluble Iminophosphorane Ligand as Potential Anticancer Agents. Organometallics 2012; 31:5772-5781. [PMID: 23066172 PMCID: PMC3466594 DOI: 10.1021/om3006239] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The synthesis and characterization of a new water-soluble iminophosphorane ligand TPA=N-C(O)-2BrC(6)H(4) (C,N-IM; TPA = 1,3,5-triaza-7-phosphaadamantane) 1 is reported. Oxidative addition of 1 to Pd(2)(dba)(3) affords the orthopalladated dimer [Pd(μ-Br){C(6)H(4)(C(O)N=TPA-kC,N)-2}](2) (2) as a mixture of cis and trans isomers (1:1 molar ratio) where the iminophosphorane moeity behaves as a C,N-pincer ligand. By addition of different neutral or monoanionic ligands to 2, the bridging bromide can be cleaved and a variety of hydrophilic or water-soluble mononuclear organometallic palladium(II) complexes of the type [Pd{C(6)H(4)(C(O)N=TPA-kC,N)-2}(L-L)] (L-L = acac (3); S(2)CNMe(2) (4); 4,7-Diphenyl-1,10-phenanthrolinedisulfonic acid disodium salt C(12)H(6)N(2)(C(6)H(4)SO(3)Na)(2) (5)); [Pd{C(6)H(4)(C(O)N=TPA-kC,N)-2}(L)Br] (L = P(mC(6)H(4)SO(3)Na)(3) (6); P(3-Pyridyl)(3) (7)) and, [Pd(C(6)H(4)(C(O)N=TPA)-2}(TPA)(2)Br] (8) are obtained as single isomers. All new complexes were tested as potential anticancer agents and their cytotoxicity properties were evaluated in vitro against human Jurkat-T acute lymphoblastic leukemia cells, normal T-lymphocytes (PBMC) and DU-145 human prostate cancer cells. Compounds [Pd(μ-Br){C(6)H(4)(C(O)N=TPA-kC,N)-2}](2) (2) and [Pd{C(6)H(4)(C(O)N=TPA-kC,N)-2}(acac)] 3 (which has been crystallographically characterized) display the higher cytotoxicity against the above mentioned cancer cell lines while being less toxic to normal T-lymphocytes (peripheral blood mononuclear cells: PBMC). In addition, 3 is very toxic to cisplatin resistant Jurkat shBak indicating a cell death pathway that may be different to that of cisplatin. The interaction of 2 and 3 with plasmid (pBR322) DNA is much weaker than that of cisplatin pointing to an alternative biomolecular target for these cytotoxic compounds. All the compounds show an interaction with human serum albumin (HSA) faster than that of cisplatin.
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Affiliation(s)
- Monica Carreira
- Department of Chemistry, Brooklyn College and The Graduate Center, The City University of New York, Brooklyn, NY, 11210, US
| | - Rubén Calvo-Sanjuán
- Department of Biochemistry and Molecular and Cellular Biology, University of Zaragoza, 50009, Spain
| | - Mercedes Sanaú
- Departamento de Química Inorgánica, Universidad de Valencia, Burjassot, Valencia, 46100, Spain
| | - Isabel Marzo
- Department of Biochemistry and Molecular and Cellular Biology, University of Zaragoza, 50009, Spain
| | - María Contel
- Department of Chemistry, Brooklyn College and The Graduate Center, The City University of New York, Brooklyn, NY, 11210, US
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Paladi CDS, Pimentel IAS, Katz S, Cunha RLOR, Judice WADS, Caires ACF, Barbiéri CL. In vitro and in vivo activity of a palladacycle complex on Leishmania (Leishmania) amazonensis. PLoS Negl Trop Dis 2012; 6:e1626. [PMID: 22616018 PMCID: PMC3352823 DOI: 10.1371/journal.pntd.0001626] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 03/08/2012] [Indexed: 11/18/2022] Open
Abstract
Background Antitumor cyclopalladated complexes with low toxicity to laboratory animals have shown leishmanicidal effect. These findings stimulated us to test the leishmanicidal property of one palladacycle compound called DPPE 1.2 on Leishmania (Leishmania) amazonensis, an agent of simple and diffuse forms of cutaneous leishmaniasis in the Amazon region, Brazil. Methodology/Principal Findings Promastigotes of L. (L.) amazonensis and infected bone marrow-derived macrophages were treated with different concentrations of DPPE 1.2. In in vivo assays foot lesions of L. (L.) amazonensis-infected BALB/c mice were injected subcutaneously with DPPE 1.2 and control animals received either Glucantime or PBS. The effect of DPPE 1.2 on cathepsin B activity of L. (L.) amazonensis amastigotes was assayed spectrofluorometrically by use of fluorogenic substrates. The main findings were: 1) axenic L. (L.) amazonensis promastigotes were destroyed by nanomolar concentrations of DPPE 1.2 (IC50 = 2.13 nM); 2) intracellular parasites were killed by DPPE 1.2 (IC50 = 128.35 nM), and the drug displayed 10-fold less toxicity to macrophages (CC50 = 1,267 nM); 3) one month after intralesional injection of DPPE 1.2 infected BALB/c mice showed a significant decrease of foot lesion size and a reduction of 97% of parasite burdens when compared to controls that received PBS; 4) DPPE 1.2 inhibited the cysteine protease activity of L. (L.) amazonensis amastigotes and more significantly the cathepsin B activity. Conclusions/Significance The present results demonstrated that DPPE 1.2 can destroy L. (L.) amazonensis in vitro and in vivo at concentrations that are non toxic to the host. We believe these findings support the potential use of DPPE 1.2 as an alternative choice for the chemotherapy of leishmaniasis. Leishmaniasis is an important public health problem with an estimated annual incidence of 1.5 million of new human cases of cutaneous leishmaniasis and 500,000 of visceral leishmaniasis. Treatment of the diseases is limited by toxicity and parasite resistance to the drugs currently in use, validating the need to develop new leishmanicidal compounds. We evaluated the killing by the palladacycle complex DPPE 1.2 of Leishmania (Leishmania) amazonensis, an agent of human cutaneous leishmaniasis in the Amazon region, Brazil. DPPE 1.2 destroyed promastigotes of L. (L.) amazonensis in vitro at nanomolar concentrations, whereas intracellular amastigotes were killed at drug concentrations 10-fold less toxic than those displayed to macrophages. L. (L.) amazonensis-infected BALB/c mice treated by intralesional injection of DPPE 1.2 exhibited a significant decrease of foot lesion sizes and a 97% reduction of parasite burdens when compared to untreated controls. Additional experiments indicated the inhibition of the cathepsin B activity of L. (L.) amazonensis amastigotes by DPPE 1.2. Further studies are needed to explore the potential of DPPE 1.2 as an additional option for the chemotherapy of leishmaniasis.
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Affiliation(s)
- Carolina de Siqueira Paladi
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | | | - Simone Katz
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Rodrigo L. O. R. Cunha
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Wagner Alves de Souza Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, São Paulo, Brazil
| | - Antonio C. F. Caires
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi das Cruzes, Mogi das Cruzes, São Paulo, Brazil
| | - Clara Lúcia Barbiéri
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- * E-mail:
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Matsuo AL, Juliano MA, Figueiredo CR, Batista WL, Tanaka AS, Travassos LR. A New Phage-Display Tumor-Homing Peptide Fused to Antiangiogenic Peptide Generates a Novel Bioactive Molecule with Antimelanoma Activity. Mol Cancer Res 2011; 9:1471-8. [DOI: 10.1158/1541-7786.mcr-10-0501] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Vázquez J, Bernès S, Sharma P, Pérez J, Hernández G, Tovar A, Peña U, Gutiérrez R. Synthesis, characterization and anticancer activity of new chiral Pd(II)-complexes derived from unsymmetrical α-diimine ligands. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.06.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gene Therapy against Murine Melanoma B16F10-Nex2 Using IL-13Ralpha2-Fc Chimera and Interleukin 12 in Association with a Cyclopalladated Drug. Transl Oncol 2011; 1:110-20. [PMID: 18795121 DOI: 10.1593/tlo.08115] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Revised: 06/20/2008] [Accepted: 06/23/2008] [Indexed: 02/02/2023] Open
Abstract
Interleukin 13 (IL-13) is immunoregulatory in many diseases, including cancer. The protective or suppressive role of CD1-restricted natural killer T cells (NKT cells) in tumor immunosurveillance and immunity is well documented. Interleukin 12 (IL-12) can activate type I NKT cells to produce interferon-gamma (IFN-gamma), whereas type II NKT cells may produce IL-13. The high-affinity chain of IL-13Ralpha2 may act as negative inhibitor, suppressing the action of IL-13 and helping to maintain tumor immunosurveillance. We constructed an mIL-13Ralpha2-Fc chimera in a eukaryotic expression vector and confirmed the identity of the recombinant protein by immunoblot analysis and binding to IL-13 in chemiluminescent ELISA. Such DNA vaccine was tested against syngeneic B16F10-Nex2 murine melanoma. In vivo experiments showed a protective effect mediated by high production of IFN-gamma and down-regulation of anti-inflammatory interleukins mainly by NKT 1.1(+) T cells. Biochemoterapy in vivo with plasmid encoding mIL-13Ralpha2-Fc in association with plasmid encoding IL-12 and the 7A cyclopalladated drug led to a significant reduction in the tumor evolution with 30% tumor-free mice. We conclude that IL-12 gene therapy, followed by continuous administration of IL-13Ralpha2-Fc gene along with 7A-drug has antitumor activity involving the high production of proinflammatory cytokines and low immune suppression, specifically by NK1.1(+)T cells producing IL-13 and IL-10.
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A cyclopalladated complex interacts with mitochondrial membrane thiol-groups and induces the apoptotic intrinsic pathway in murine and cisplatin-resistant human tumor cells. BMC Cancer 2011; 11:296. [PMID: 21756336 PMCID: PMC3156809 DOI: 10.1186/1471-2407-11-296] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Accepted: 07/14/2011] [Indexed: 12/11/2022] Open
Abstract
Background Systemic therapy for cancer metastatic lesions is difficult and generally renders a poor clinical response. Structural analogs of cisplatin, the most widely used synthetic metal complexes, show toxic side-effects and tumor cell resistance. Recently, palladium complexes with increased stability are being investigated to circumvent these limitations, and a biphosphinic cyclopalladated complex {Pd2 [S(-)C2, N-dmpa]2 (μ-dppe)Cl2} named C7a efficiently controls the subcutaneous development of B16F10-Nex2 murine melanoma in syngeneic mice. Presently, we investigated the melanoma cell killing mechanism induced by C7a, and extended preclinical studies. Methods B16F10-Nex2 cells were treated in vitro with C7a in the presence/absence of DTT, and several parameters related to apoptosis induction were evaluated. Preclinical studies were performed, and mice were endovenously inoculated with B16F10-Nex2 cells, intraperitoneally treated with C7a, and lung metastatic nodules were counted. The cytotoxic effects and the respiratory metabolism were also determined in human tumor cell lines treated in vitro with C7a. Results Cyclopalladated complex interacts with thiol groups on the mitochondrial membrane proteins, causes dissipation of the mitochondrial membrane potential, and induces Bax translocation from the cytosol to mitochondria, colocalizing with a mitochondrial tracker. C7a also induced an increase in cytosolic calcium concentration, mainly from intracellular compartments, and a significant decrease in the ATP levels. Activation of effector caspases, chromatin condensation and DNA degradation, suggested that C7a activates the apoptotic intrinsic pathway in murine melanoma cells. In the preclinical studies, the C7a complex protected against murine metastatic melanoma and induced death in several human tumor cell lineages in vitro, including cisplatin-resistant ones. The mitochondria-dependent cell death was also induced by C7a in human tumor cells. Conclusions The cyclopalladated C7a complex is an effective chemotherapeutic anticancer compound against primary and metastatic murine and human tumors, including cisplatin-resistant cells, inducing apoptotic cell death via the intrinsic pathway.
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Guimaraes-Correa AB, Crawford LB, Figueiredo CR, Gimenes KP, Pinto LA, Rios Grassi MF, Feuer G, Travassos LR, Caires AC, Rodrigues EG, Marriott SJ. C7a, a biphosphinic cyclopalladated compound, efficiently controls the development of a patient-derived xenograft model of adult T cell leukemia/lymphoma. Viruses 2011; 3:1041-1058. [PMID: 21994769 PMCID: PMC3185797 DOI: 10.3390/v3071041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 06/17/2011] [Accepted: 06/17/2011] [Indexed: 02/02/2023] Open
Abstract
Adult T-cell leukemia/lymphoma (ATLL) is a highly aggressive disease that occurs in individuals infected with the human T lymphotropic virus type 1 (HTLV-1). Patients with aggressive ATLL have a poor prognosis because the leukemic cells are resistant to conventional chemotherapy. We have investigated the therapeutic efficacy of a biphosphinic cyclopalladated complex {Pd2 [S(−)C2, N-dmpa]2 (μ-dppe)Cl2}, termed C7a, in a patient-derived xenograft model of ATLL, and investigated the mechanism of C7a action in HTLV-1-positive and negative transformed T cell lines in vitro. In vivo survival studies in immunocompromised mice inoculated with human RV-ATL cells and intraperitoneally treated with C7a led to significantly increased survival of the treated mice. We investigated the mechanism of C7a activity in vitro and found that it induced mitochondrial release of cytochrome c, caspase activation, nuclear condensation and DNA degradation. These results suggest that C7a triggers apoptotic cell death in both HTLV-1 infected and uninfected human transformed T-cell lines. Significantly, C7a was not cytotoxic to peripheral blood mononuclear cells (PBMC) from healthy donors and HTLV-1-infected individuals. C7a inhibited more than 60% of the ex vivo spontaneous proliferation of PBMC from HTLV-1-infected individuals. These results support a potential therapeutic role for C7a in both ATLL and HTLV-1-negative T-cell lymphomas.
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Affiliation(s)
- Ana B. Guimaraes-Correa
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo 04023-062, Brazil; E-Mails: (A.B.G.-C.); (C.R.F.); (K.P.G.); (L.R.T.); (E.G.R.)
| | - Lindsey B. Crawford
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; E-Mail: (L.B.C.)
| | - Carlos R. Figueiredo
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo 04023-062, Brazil; E-Mails: (A.B.G.-C.); (C.R.F.); (K.P.G.); (L.R.T.); (E.G.R.)
| | - Karina P. Gimenes
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo 04023-062, Brazil; E-Mails: (A.B.G.-C.); (C.R.F.); (K.P.G.); (L.R.T.); (E.G.R.)
| | - Lorena A. Pinto
- Laboratorio Avançado de Saúde Pública, CPQGM, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Bahia 40296-700, Brazil; E-Mails: (L.A.P.); (M.F.R.G.)
| | - Maria Fernanda Rios Grassi
- Laboratorio Avançado de Saúde Pública, CPQGM, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Bahia 40296-700, Brazil; E-Mails: (L.A.P.); (M.F.R.G.)
| | - Gerold Feuer
- Humurine Technologies, Inc., 640 Arrow Highway, La Verne, CA 91750, USA; E-Mail: (G.F.)
| | - Luiz R. Travassos
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo 04023-062, Brazil; E-Mails: (A.B.G.-C.); (C.R.F.); (K.P.G.); (L.R.T.); (E.G.R.)
| | - Antonio C.F. Caires
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi de Cruzes, Mogi das Cruzes, São Paulo 08780-911, Brazil; E-Mail: (A.C.F.C.)
| | - Elaine G. Rodrigues
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo 04023-062, Brazil; E-Mails: (A.B.G.-C.); (C.R.F.); (K.P.G.); (L.R.T.); (E.G.R.)
| | - Susan J. Marriott
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, TX 77030, USA
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-713-798-4440; Fax: +1-713-798-4435
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