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Todarwal MA, Sancheti RS, Nikume SR, Patel HM, Bendre RS. Anti-Malarial and Multi-Bioactive Co (II), Cu (II) and Ni (II) Salen Complexes: Synthesis, Characterization and Computational Studies. Chem Biodivers 2024:e202400715. [PMID: 38825566 DOI: 10.1002/cbdv.202400715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Herein, we report the anti-malarial, anti-bacterial and anti-inflammatory activities of the N2O2 donor tetradentate salen type ligand and its CoL, NiL, and CuL metal complexes. The synthesized compounds were characterized by various spectroscopic analytical methods. The in-vitro anti-malarial investigations revealed that the complex CuL exhibited equipotency with quinine drug having IC50 value 0.25 μg/mL. The compound L showed significant inhibition of bacterial spp. viz. E. Coli, P. Aeruginosa, and S. Aureus (MIC=12.5-50 μg/mL), while the compound CoL (MIC=12.5 μg/mL) exhibited potency against gram-positive bacteria. In the in-vitro anti-inflammatory study, the compound CuL displayed moderate activity than other tested compounds. The compound CuL showed the highest anti-malarial docking score with enzyme pLDH at -8.12 Kcal/mol. The DFT study also gives authentication of higher antimalarial activity of CuL due to high dipole moment. None of the potent compounds was found cytotoxic towards vero cell lines.
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Affiliation(s)
- Minakshee A Todarwal
- Department of Chemistry, SNJB's KKHA Arts, SMGL Commerce and SPHJ Science College, Chandwad, 423101, India
- School of Chemical Sciences, KBC, North Maharashtra University, Jalgaon, 425001, India
| | - Rakesh S Sancheti
- Department of Chemistry, SNJB's KKHA Arts, SMGL Commerce and SPHJ Science College, Chandwad, 423101, India
| | - Sumit R Nikume
- School of Chemical Sciences, KBC, North Maharashtra University, Jalgaon, 425001, India
| | - Harun M Patel
- Department of Pharmaceutical Chemistry, R. C. Institute of Pharmaceutical Education and Research, Shirpur, 425405, India
| | - Ratnamala S Bendre
- School of Chemical Sciences, KBC, North Maharashtra University, Jalgaon, 425001, India
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Gacki M, Kafarska K, Korona-Głowniak I, Schab P, Wojciechowski J, Gierczak N, Wolf WM. 1D and 2D Coordination Polymers of Calcium with Nonsteroidal Anti-Inflammatory Drugs: Synthesis, Crystal Structures, Hirshfeld Surfaces, Antimicrobial and Antioxidant Activities. Chempluschem 2024; 89:e202300734. [PMID: 38216541 DOI: 10.1002/cplu.202300734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/14/2024]
Abstract
Four alkaline earth metal complexes of ketoprofen (Hket) and indomethacin (Hind) were synthesized and characterized: [Ca(ket)2(H2O)2]n (1), [Mg(ket)2(H2O)2] (2), [Ca(ind)2(EtOH)2]n (3), and [Mg(ind)2(EtOH)2] (4). All compounds were studied by elemental analysis (EA), flame atomic absorption spectrometry (FAAS), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Crystal structures of 1 and 3 were determined by single crystal X-ray diffraction technique T=100 K. The structure of 1 is dominated by a one-dimensional coordination polymer, while 3 is formed by a two-dimensional layer stabilized by the calcium zig-zag chains and π⋅⋅⋅π stacking interactions. Crystal packing arrangements were characterized by fingerprint plots (FPs) that were derived from the Hirshfeld surfaces (HSs). The antioxidant and antimicrobial activities of complexes were evaluated against Gram-positive and Gram-negative bacteria as well as yeasts.
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Affiliation(s)
- Michał Gacki
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
| | - Karolina Kafarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Medial University of Lublin, Chodźki 1, 20-093, Lublin, Poland
| | - Patrycja Schab
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
| | | | - Natalia Gierczak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
| | - Wojciech M Wolf
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Łódź University of Technology, Żeromskiego 116, 90-924, Łódź, Poland
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3
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Kostova I. Therapeutic and Diagnostic Agents based on Bioactive Endogenous and Exogenous Coordination Compounds. Curr Med Chem 2024; 31:358-386. [PMID: 36944628 DOI: 10.2174/0929867330666230321110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 03/23/2023]
Abstract
Metal-based coordination compounds have very special place in bioinorganic chemistry because of their different structural arrangements and significant application in medicine. Rapid progress in this field increasingly enables the targeted design and synthesis of metal-based pharmaceutical agents that fulfill valuable roles as diagnostic or therapeutic agents. Various coordination compounds have important biological functions, both those initially present in the body (endogenous) and those entering the organisms from the external environment (exogenous): vitamins, drugs, toxic substances, etc. In the therapeutic and diagnostic practice, both the essential for all living organisms and the trace metals are used in metal-containing coordination compounds. In the current review, the most important functional biologically active compounds were classified group by group according to the position of the elements in the periodic table.
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Affiliation(s)
- Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav St., Sofia 1000, Bulgaria
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4
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Mandal A, Kushwaha R, Mandal AA, Bajpai S, Yadav AK, Banerjee S. Transition Metal Complexes as Antimalarial Agents: A Review. ChemMedChem 2023; 18:e202300326. [PMID: 37436090 DOI: 10.1002/cmdc.202300326] [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: 06/26/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/13/2023]
Abstract
In antimalarial drug development research, overcoming drug resistance has been a major challenge for researchers. Nowadays, several drugs like chloroquine, mefloquine, sulfadoxine, and artemisinin are used to treat malaria. But increment in drug resistance has pushed researchers to find novel drugs to tackle drug resistance problems. The idea of using transition metal complexes with pharmacophores as ligands/ligand pendants to show enhanced antimalarial activity with a novel mechanism of action has gained significant attention recently. The advantages of metal complexes include tunable chemical/physical properties, redox activity, avoiding resistance factors, etc. Several recent reports have successfully demonstrated that the metal complexation of known organic antimalarial drugs can overcome drug resistance by showing enhanced activities than the parent drugs. This review has discussed the fruitful research works done in the past few years falling into this criterion. Based on transition metal series (3d, 4d, or 5d), the antimalarial metal complexes have been divided into three broad categories (3d, 4d, or 5d metal-based), and their activities have been compared with the similar control complexes as well as the parent drugs. Furthermore, we have also commented on the potential issues and their possible solution for translating these metal-based antimalarial complexes into the clinic.
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Affiliation(s)
- Apurba Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Rajesh Kushwaha
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Arif Ali Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Sumit Bajpai
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Ashish Kumar Yadav
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Samya Banerjee
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
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5
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Colina-Vegas L, da Cruz B Silva M, de Souza Pereira C, Isis Barros A, Araújo Nobrega J, Navarro M, Rottmann M, D'Alessandro S, Basilico N, Azevedo Batista A, Moreira DRM. Antimalarial Agents Derived from Metal-Amodiaquine Complexes with Activity in Multiple Stages of the Plasmodium Life Cycle. Chemistry 2023; 29:e202301642. [PMID: 37427863 DOI: 10.1002/chem.202301642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023]
Abstract
Malaria is the one of the deadliest infectious diseases worldwide. Chemically, quinolines are excellent ligands for metal coordination and are deployed as drugs for malaria treatment. There is a growing body of evidence indicating that metal complexes can be conjugated with antimalarial quinolines to be used as chemical tools to overcome the disadvantages of quinolines, improving their bioactive speciation, cellular distribution, and subsequently broadening the spectrum of activity to multiple stages of the complex Plasmodium life cycle. In this study, four novel complexes of ruthenium(II)- and gold(I)-containing amodiaquine (AQ) were synthesized, and a careful chemical characterization revealed the precise coordination site of AQ to the metals. Their speciation in solution was investigated, demonstrating the stability of the quinoline-metal bond. RuII - and AuI -AQ complexes were demonstrated to be potent and efficacious in inhibiting parasite growth in multiple stages of the Plasmodium life cycle as assayed in vitro and in vivo. These properties could be attributed to the ability of the metal-AQ complexes to reproduce the suppression of heme detoxification induced by AQ, while also inhibiting other processes in the parasite life cycle; this can be attributed to the action of the metallic species. Altogether, these findings indicate that metal coordination with antimalarial quinolines is a potential chemical tool for drug design and discovery in malaria and other infectious diseases susceptible to quinoline treatment.
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Affiliation(s)
- Legna Colina-Vegas
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, CP 91501-970, RS, Brazil
| | | | - Caroline de Souza Pereira
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora, CP 36036-900, MG, Brazil
| | - Ariane Isis Barros
- Departamento de Solos e Engenharia Rural, Universidade Federal de Mato Grosso, Cuiabá, CEP 78060-900, MT, Brazil
| | - Joaquim Araújo Nobrega
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, CP 13565-90, SP, Brazil
| | - Maribel Navarro
- Departamento de Química, Universidade Federal de Juiz de Fora, Juiz de Fora, CP 36036-900, MG, Brazil
| | - Matthias Rottmann
- Swiss Tropical & Public Health Institute, 4123, Allschwil, Switzerland
- University of Basel, 4001, Basel, Switzerland
| | - Sarah D'Alessandro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Nicoletta Basilico
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Universitá degli Studi di Milano, Milan, 20133, Italy
| | - Alzir Azevedo Batista
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, CP 13565-90, SP, Brazil
| | - Diogo R M Moreira
- Instituto Gonçalo Moniz, FIOCRUZ, Salvador, CEP 40296-710, BA, Brazil
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Lai JW, Maah MJ, Tan KW, Sarip R, Lim YAL, Ganguly R, Khaw LT, Ng CH. Dinuclear and mononuclear metal(II) polypyridyl complexes against drug-sensitive and drug-resistant Plasmodium falciparum and their mode of action. Malar J 2022; 21:386. [PMID: 36528584 PMCID: PMC9758846 DOI: 10.1186/s12936-022-04406-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Malaria remains one of the most virulent and deadliest parasitic disease in the world, particularly in Africa and Southeast Asia. Widespread occurrence of artemisinin-resistant Plasmodium falciparum strains from the Greater Mekong Subregion is alarming. This hinders the national economies, as well as being a major drawback in the effective control and elimination of malaria worldwide. Clearly, an effective anti-malarial drug is urgently needed. METHODS The dinuclear and mononuclear copper(II) and zinc(II) complexes were synthesized in ethanolic solution and characterized by various physical measurements (FTIR, CHN elemental analysis, solubility, ESI-MS, UV-Visible, conductivity and magnetic moment, and NMR). X-ray crystal structure of the dicopper(II) complex was determined. The in vitro haemolytic activities of these metal complexes were evaluated spectroscopically on B+ blood while the anti-malarial potency was performed in vitro on blood stage drug-sensitive Plasmodium falciparum 3D7 (Pf3D7) and artemisinin-resistant Plasmodium falciparum IPC5202 (Pf5202) with fluorescence dye. Mode of action of metal complexes were conducted to determine the formation of reactive oxygen species using PNDA and DCFH-DA dyes, JC-1 depolarization of mitochondrial membrane potential, malarial 20S proteasome inhibition with parasite lysate, and morphological studies using Giemsa and Hoechst stains. RESULTS Copper(II) complexes showed anti-malarial potency against both Pf3D7 and Pf5202 in sub-micromolar to micromolar range. The zinc(II) complexes were effective against Pf3D7 with excellent therapeutic index but encountered total resistance against Pf5202. Among the four, the dinuclear copper(II) complex was the most potent against both strains. The zinc(II) complexes caused no haemolysis of RBC while copper(II) complexes induced increased haemolysis with increasing concentration. Further mechanistic studies of both copper(II) complexes on both Pf3D7 and Pf5202 strains showed induction of ROS, 20S malarial proteasome inhibition, loss of mitochondrial membrane potential and morphological features indicative of apoptosis. CONCLUSION The dinuclear [Cu(phen)-4,4'-bipy-Cu(phen)](NO3)4 is highly potent and can overcome the total drug-resistance of Pf5202 towards chloroquine and artemisinin. The other three copper(II) and zinc(II) complexes were only effective towards the drug-sensitive Pf3D7, with the latter causing no haemolysis of RBC. Their mode of action involves multiple targets.
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Affiliation(s)
- Jing Wei Lai
- grid.10347.310000 0001 2308 5949Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Mohd Jamil Maah
- grid.10347.310000 0001 2308 5949Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kong Wai Tan
- grid.10347.310000 0001 2308 5949Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Rozie Sarip
- grid.10347.310000 0001 2308 5949Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yvonne Ai Lian Lim
- grid.10347.310000 0001 2308 5949Department of Parasitology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Rakesh Ganguly
- grid.410868.30000 0004 1781 342XShiv Nadar University, Greater Noida, India
| | - Loke Tim Khaw
- grid.411729.80000 0000 8946 5787Department of Microbiology and Immunology, School of Medicine, International Medical University, 57000 Kuala Lumpur, Malaysia
| | - Chew Hee Ng
- grid.411729.80000 0000 8946 5787Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, 57000 Kuala Lumpur, Malaysia
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Kumari G, Gupta A, Sah RK, Gautam A, Saini M, Gupta A, Kushawaha AK, Singh S, Sasmal PK. Development of Mitochondria Targeting AIE-Active Cyclometalated Iridium Complexes as Potent Antimalarial Agents. Adv Healthc Mater 2022; 12:e2202411. [PMID: 36515128 DOI: 10.1002/adhm.202202411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/10/2022] [Indexed: 12/15/2022]
Abstract
The emergence of resistance to conventional antimalarial treatments remains a major cause for concern. New drugs that target the distinct development stages of Plasmodium parasites are required to address this risk. Herein, water-soluble aggregation-induced emission active cyclometalated iridium(III) polypyridyl complexes (Ir1-Ir12) are developed for the elimination of malaria parasites. Remarkably, these complexes show potent antimalarial activity in low nanomolar range against 3D7 (chloroquine and artemisinin sensitive strain), RKL9 (chloroquine resistant strain), and R539T (artemisinin resistant strains) strains of Plasmodium falciparum with faster killing rate of malaria parasites. Concomitantly, these complexes exhibit efficient in vivo antimalarial activity against both the asexual and gametocyte stages of Plasmodium berghei malaria parasite, suggesting promising transmission-blocking potential. The complexes tend to localize into mitochondria of P. falciparum determined by image and cell-based assay. The mechanistic studies reveal that these complexes exert their antimalarial activity by increasing reactive oxygen species levels and disrupting its mitochondrial membrane potential. Furthermore, the mitochondrial-dependent antimalarial activity of these complexes is confirmed in yeast model. Thus, this study for the first time highlights the potential role of targeting P. falciparum mitochondria by iridium complexes in discovering and developing the next-generation antimalarial agents for treating multidrug resistant malaria parasites.
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Affiliation(s)
- Geeta Kumari
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ajay Gupta
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Raj Kumar Sah
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Aryan Gautam
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Monika Saini
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India.,Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Budhha Nagar, Uttar Pradesh, 201314, India
| | - Aashima Gupta
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Akhilesh K Kushawaha
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pijus K Sasmal
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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Brenda CT, Norma RF, Marcela RL, Nelly LV, Teresa I F. Action mechanisms of metallic compounds on Plasmodium spp. J Trace Elem Med Biol 2022; 73:127028. [PMID: 35797926 DOI: 10.1016/j.jtemb.2022.127028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/10/2022] [Accepted: 06/20/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Malaria is a parasitic disease with the highest morbidity and mortality worldwide. Unfortunately, during the last decades, the causal agent, Plasmodium spp., has developed resistance to chloroquine and artemisinin. For this reason, metallic compounds have been proposed as an optional treatment since they have shown a potential antimalarial effect with diverse action mechanisms in the parasite and the host. OBJECTIVE To show the possible targets of metallic compounds in Plasmodium spp. CONCLUSION The metallic compounds are an option attractive to treatment for the malaria, for its low cost and its great activity to reduce parasitemia; however is necessary more studies principally in vivo in order to know the interactions that it can have in an experimental model.
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Affiliation(s)
- Casarrubias-Tabarez Brenda
- Departamento de Biología Celular y TIsular, Facultad de Medicina, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, C.P. 04510 Mexico City, Mexico.
| | - Rivera-Fernández Norma
- Departamento de Microbiología y Parasitología, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, C.P. 04510 Mexico City, Mexico.
| | - Rojas-Lemus Marcela
- Departamento de Biología Celular y TIsular, Facultad de Medicina, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, C.P. 04510 Mexico City, Mexico.
| | - López-Valdez Nelly
- Departamento de Biología Celular y TIsular, Facultad de Medicina, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, C.P. 04510 Mexico City, Mexico.
| | - Fortoul Teresa I
- Departamento de Biología Celular y TIsular, Facultad de Medicina, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, C.P. 04510 Mexico City, Mexico.
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Villarreal W, Castro W, González S, Madamet M, Amalvict R, Pradines B, Navarro M. Copper (I)-Chloroquine Complexes: Interactions with DNA and Ferriprotoporphyrin, Inhibition of β-Hematin Formation and Relation to Antimalarial Activity. Pharmaceuticals (Basel) 2022; 15:ph15080921. [PMID: 35893745 PMCID: PMC9329717 DOI: 10.3390/ph15080921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
A new Cu(I)-chloroquine (CQ) complex [Cu(CQ)(PPh3)2]NO3 (1) was synthesized and characterized, and its mechanism of action studied concomitant with the previously reported complex [Cu(CQ)2]Cl (2). These copper (I) coordination compounds can be considered as potential antimalarial agents because they show better inhibition of the CQ-resistant strain in in vitro studies than CQ alone. In comparison with other metal-CQ complexes, only the gold complex was similar to (1), i.e., more active than CQ against both CQ-susceptible (3D7) and CQ-resistant strains (W2). These two copper (I)-compounds also demonstrated higher antiplasmodial activity against W2 than other copper complexes reported to date. This suggests that the incorporation of the copper metal center enhanced the biological activity of CQ. To better understand their significant growth inhibition of the Plasmodium falciparum parasite, the interaction with two essential molecular targets for the survival and proliferation of the malarial parasite were studied. These were the ferriprotoporphyrin group and the DNA, both important targets for current antimalarial drugs at the asexual erythrocytic stages. Both compounds (1,2) exhibited significant interactions with these targets. In particular, interactions with the DNA were dominated by the intercalator properties of the CQ ligand but may have also been affected by the presence of copper. Overall, these compounds were better parasitic inhibitors than chloroquine diphosphate (CQDP) alone or other previously reported metal-CQ complexes such as platinum, ruthenium and gold.
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Affiliation(s)
- Wilmer Villarreal
- Grupo de Química Inorgânica Medicinal e Reações Aplicadas, Instituto de Química, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 91501-970, Brazil;
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela; (W.C.); (S.G.)
| | - William Castro
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela; (W.C.); (S.G.)
| | - Sorenlis González
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela; (W.C.); (S.G.)
| | - Marylin Madamet
- Unité Parasitologie et Entomologie, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 13005 Marseille, France; (M.M.); (R.A.); (B.P.)
- Aix Marseille Univ, IRD, SSA, AP-HM, VITROME, 13005 Marseille, France
- IHU Méditerranée Infection, 13005 Marseille, France
- Centre National de Référence du Paludisme, 13005 Marseille, France
| | - Rémy Amalvict
- Unité Parasitologie et Entomologie, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 13005 Marseille, France; (M.M.); (R.A.); (B.P.)
- Aix Marseille Univ, IRD, SSA, AP-HM, VITROME, 13005 Marseille, France
- IHU Méditerranée Infection, 13005 Marseille, France
- Centre National de Référence du Paludisme, 13005 Marseille, France
| | - Bruno Pradines
- Unité Parasitologie et Entomologie, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 13005 Marseille, France; (M.M.); (R.A.); (B.P.)
- Aix Marseille Univ, IRD, SSA, AP-HM, VITROME, 13005 Marseille, France
- IHU Méditerranée Infection, 13005 Marseille, France
- Centre National de Référence du Paludisme, 13005 Marseille, France
| | - Maribel Navarro
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela; (W.C.); (S.G.)
- Laboratório de Química Bioinorgânica e Catálise, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil
- Correspondence:
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10
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Scarim CB, de Farias RL, Chiba DE, Chin CM. Insight into Recent Drug Discoveries against Trypanosomatids and Plasmodium spp Parasites: New Metal-based Compounds. Curr Med Chem 2021; 29:2334-2381. [PMID: 34533436 DOI: 10.2174/0929867328666210917114912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 11/22/2022]
Abstract
Scaffolds of metal-based compounds can act as pharmacophore groups in several ligands to treat various diseases, including tropical infectious diseases (TID). In this review article, we investigate the contribution of these moieties to medicinal inorganic chemistry in the last seven years against TID, including American trypanosomiasis (Chagas disease), human African trypanosomiasis (HAT, sleeping sickness), leishmania, and malaria. The most potent metal-based complexes are displayed and highlighted in figures, tables and graphics; according to their pharmacological activities (IC50 > 10µM) against Trypanosomatids and Plasmodium spp parasites. We highlight the current progresses and viewpoints of these metal-based complexes, with a specific focus on drug discovery.
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Affiliation(s)
- Cauê Benito Scarim
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
| | - Renan Lira de Farias
- Sao Paulo State University (UNESP), Institute of Chemistry, 14800-060, Araraquara-SP, Brazil
| | - Diego Eidy Chiba
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
| | - Chung Man Chin
- Sao Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP, 14800-903, Brazil
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11
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Melis DR, Barnett CB, Wiesner L, Nordlander E, Smith GS. Quinoline-triazole half-sandwich iridium(III) complexes: synthesis, antiplasmodial activity and preliminary transfer hydrogenation studies. Dalton Trans 2021; 49:11543-11555. [PMID: 32697227 DOI: 10.1039/d0dt01935f] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iridium(iii) half-sandwich complexes containing 7-chloroquinoline-1,2,3-triazole hybrid ligands were synthesised and their inhibitory activities evaluated against the Plasmodium falciparum malaria parasite. Supporting computational analysis revealed that metal coordination to the quinoline nitrogen occurs first, forming a kinetic product that, upon heating over time, forms a more stable cyclometallated thermodynamic product. Single crystal X-ray diffraction confirmed the proposed molecular structures of both isolated kinetic and thermodynamic products. Complexation with iridium significantly enhances the in vitro activity of selected ligands against the chloroquine-sensitive (NF54) Plasmodium falciparum strain, with selected complexes being over one hundred times more active than their respective ligands. No cross-resistance was observed in the chloroquine-resistant (K1) strain. No cytotoxicity was observed for selected complexes tested against the mammalian Chinese Hamster Ovarian (CHO) cell line. In addition, speed-of-action assays and β-haematin inhibition studies were performed. Through preliminary qualitative and quantitative cell-free experiments, it was found that the two most active neutral, cyclometallated complexes can act as transfer hydrogenation catalysts, by reducing β-nicotinamide adenine dinucleotide (NAD+) to NADH in the presence of a hydrogen source, sodium formate.
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Affiliation(s)
- Diana R Melis
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, South Africa.
| | - Christopher B Barnett
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, South Africa.
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Observatory 7925, Cape Town, South Africa
| | - Ebbe Nordlander
- Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Gregory S Smith
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, South Africa.
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12
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Hussein RK, Elkhair HM. Molecular docking identification for the efficacy of some zinc complexes with chloroquine and hydroxychloroquine against main protease of COVID-19. J Mol Struct 2021; 1231:129979. [PMID: 33518801 PMCID: PMC7830318 DOI: 10.1016/j.molstruc.2021.129979] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/13/2022]
Abstract
Vast amount of research has been recently conducted to discover drugs for efficacious treatment of corona virus disease 2019 (COVID-19). The ambiguity about using Chloroquine/ Hydroxychloroquine to treat this illness was a springboard towards new methods for improving the adequacy of these drugs. The effective treatment of COVID-19 using Zinc complexes as add-on to Chloroquine/ Hydroxychloroquine has received major attention in this context. The current studies have shed a light on molecular docking and molecular dynamics methodologies as powerful techniques in establishing therapeutic strategies to combat COVID-19 pandemic. We are proposing some zinc compounds coordination to Chloroquine/ Hydroxychloroquine in order to enhance their activity. The molecular docking calculations showed that Zn(QC)Cl2(H2O) has the least binding energy -7.70 Kcal /mol then Zn(HQC)Cl2(H2O) -7.54 Kcal /mol. The recorded hydrogen bonds were recognized in the strongest range of H Bond category distances. Identification of binding site interactions revealed that the interaction of Zn(QC)Cl2(H2O)with the protease of COVID-19 results in three hydrogen bonds, while Zn(HQC)Cl2(H2O) exhibited a strong binding to the main protease receptor by forming eight hydrogen bonds. The dynamic behavior of the proposed complexes was revealed by molecular dynamics simulations. The outcomes obtained from Molecular dynamics calculations approved the stability of Mpro-Zn(CQ/HCQ)Cl2H2O systems. These findings recommend Zn (CQ) Cl2H2O and Zn (HCQ) Cl2H2O as potential inhibitors for COVID-19 Mpro.
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Affiliation(s)
- R K Hussein
- Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Physics department, P.O. Box 90950, Riyadh 11623, Saudi Arabia
| | - H M Elkhair
- Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Physics department, P.O. Box 90950, Riyadh 11623, Saudi Arabia
- Department of Physics, Al Neelain University, P. O. Box 12702, Khartoum 11121, Sudan
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13
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Molecular designing, crystal structure determination and in silico screening of copper(II) complexes bearing 8-hydroxyquinoline derivatives as anti-COVID-19. Bioorg Chem 2021; 110:104772. [PMID: 33676041 PMCID: PMC7902223 DOI: 10.1016/j.bioorg.2021.104772] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/06/2021] [Accepted: 02/22/2021] [Indexed: 12/16/2022]
Abstract
The pandemic by COVID-19 is hampering everything on the earth including physical and mental health, daily life and global economy. At the moment, there are no defined drugs, while few vaccines are available in the market to combat SARS-CoV-2. Several organic molecules were designed and tested against the virus but they did not show promising activity. In this work we designed two copper complexes from the ligands analogues with chloroquine and hydroxychloroquine. Both the ligands and complexes were well characterized by using various spectroscopic, thermal and X-ray diffraction techniques. Both the complexes as well as ligands were screened through in silico method with the chloroquine and hydroxychloroquine which essentially proved pivotal for successful understanding towards the target protein and their mechanism of action. The results indicated that the balanced hydrophobic and polar groups in the complexes favor their binding in the active site of the viral ADP-ribose-1 monophosphatase enzyme over the parent organic molecules.
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14
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Melis DR, Hsiao CY, Combrinck JM, Wiesner L, Smith GS. Subcellular Localisation of a Quinoline-Containing Fluorescent Cyclometallated Ir III Complex in Plasmodium falciparum. Chembiochem 2021; 22:1568-1572. [PMID: 33453069 DOI: 10.1002/cbic.202000847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 12/31/2020] [Indexed: 11/06/2022]
Abstract
A fluorescent analogue of a previously synthesised N,N-chelated IrIII complex was prepared by coordination of the organic ligand to an extrinsic bis(2-phenylpyridine)iridium(III) fluorophore. This cyclometallated IrIII complex in itself displays good, micromolar activity against the chloroquine-sensitive NF54 strain of Plasmodium falciparum. Live-cell confocal microscopy found negligible localisation of the fluorescent complex within the digestive vacuole of the parasite. This eliminated the haem detoxification pathway as a potential mechanism of action. Similarly, no localisation of the complex within the parasitic nucleus was found, thus suggesting that this complex probably does not interfere with the DNA replication process. A substantial saturation of fluorescence from the complex was found near phospholipid structures such as the plasma and nuclear membranes but not in neutral lipid bodies. This indicates that an association with these membranes, or organelles such as the endoplasmic reticulum or branched mitochondrion, could be essential to the efficacies of these types of antimalarial compounds.
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Affiliation(s)
- Diana R Melis
- Department of Chemistry, University of Cape Town, PD Hahn, Chemistry Mall, Rondebosch, 7701, Cape Town, South Africa
| | - Chiao-Yu Hsiao
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Jill M Combrinck
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Gregory S Smith
- Department of Chemistry, University of Cape Town, PD Hahn, Chemistry Mall, Rondebosch, 7701, Cape Town, South Africa
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15
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de Souza Pereira C, Costa Quadros H, Magalhaes Moreira DR, Castro W, Santos De Deus Da Silva RI, Botelho Pereira Soares M, Fontinha D, Prudêncio M, Schmitz V, Dos Santos HF, Gendrot M, Fonta I, Mosnier J, Pradines B, Navarro M. A Novel Hybrid of Chloroquine and Primaquine Linked by Gold(I): Multitarget and Multiphase Antiplasmodial Agent. ChemMedChem 2020; 16:662-678. [PMID: 33231370 DOI: 10.1002/cmdc.202000653] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/02/2020] [Indexed: 12/23/2022]
Abstract
Plasmodium parasites kill 435 000 people around the world every year due to unavailable vaccines, a limited arsenal of antimalarial drugs, delayed treatment, and the reduced clinical effectiveness of current practices caused by drug resistance. Therefore, there is an urgent need to discover and develop new antiplasmodial candidates. In this work, we present a novel strategy to develop a multitarget metallic hybrid antimalarial agent with possible dual efficacy in both sexual and asexual erythrocytic stages. A hybrid of antimalarial drugs (chloroquine and primaquine) linked by gold(I) was synthesized and characterized by spectroscopic and analytical techniques. The CQPQ-gold(I) hybrid molecule affects essential parasite targets, it inhibits β-hematin formation and interacts moderately with the DNA minor groove. Its interaction with PfTrxR was also examined in computational modeling studies. The CQPQ-gold(I) hybrid displayed an excellent in vitro antimalarial activity against the blood-stage of Plasmodium falciparum and liver-stage of Plasmodium berghei and efficacy in vivo against P. berghei, thereby demonstrating its multiple-stage antiplasmodial activity. This metallic hybrid is a promising chemotherapeutic agent that could act in the treatment, prevention, and transmission of malaria.
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Affiliation(s)
- Caroline de Souza Pereira
- Departamento de Química, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n - Campus Universitário, Bairro Martelos, CEP 36036-900, Juiz de Fora, Minas Gerais, Brasil
| | - Helenita Costa Quadros
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Av. Waldemar Falcão, 121, Candeal, Salvador, Bahia, Brasil
| | | | - William Castro
- Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Carretera Panamericana, Km 11, Altos de Pipe, San Antonio de los Altos Miranda, 1020-A, Caracas, Venezuela
| | | | | | - Diana Fontinha
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa <, Lisboa, Portugal
| | - Miguel Prudêncio
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa <, Lisboa, Portugal
| | - Vinicius Schmitz
- Departamento de Química, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n - Campus Universitário, Bairro Martelos, CEP 36036-900, Juiz de Fora, Minas Gerais, Brasil
| | - Hélio F Dos Santos
- Departamento de Química, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n - Campus Universitário, Bairro Martelos, CEP 36036-900, Juiz de Fora, Minas Gerais, Brasil
| | - Mathieu Gendrot
- Unité Parasitologie et entomologie, Institut de recherche biomédicale des armées, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, 19-21 Bd Jean Moulin, 13005, Marseille, France.,IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Isabelle Fonta
- Unité Parasitologie et entomologie, Institut de recherche biomédicale des armées, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, 19-21 Bd Jean Moulin, 13005, Marseille, France.,IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Centre National de Référence du Paludisme, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Joel Mosnier
- Unité Parasitologie et entomologie, Institut de recherche biomédicale des armées, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, 19-21 Bd Jean Moulin, 13005, Marseille, France.,IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Centre National de Référence du Paludisme, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Bruno Pradines
- Unité Parasitologie et entomologie, Institut de recherche biomédicale des armées, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, 19-21 Bd Jean Moulin, 13005, Marseille, France.,IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.,Centre National de Référence du Paludisme, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Maribel Navarro
- Departamento de Química, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n - Campus Universitário, Bairro Martelos, CEP 36036-900, Juiz de Fora, Minas Gerais, Brasil
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16
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Mbaba M, Golding TM, Smith GS. Recent Advances in the Biological Investigation of Organometallic Platinum-Group Metal (Ir, Ru, Rh, Os, Pd, Pt) Complexes as Antimalarial Agents. Molecules 2020; 25:molecules25225276. [PMID: 33198217 PMCID: PMC7698227 DOI: 10.3390/molecules25225276] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 01/06/2023] Open
Abstract
In the face of the recent pandemic and emergence of infectious diseases of viral origin, research on parasitic diseases such as malaria continues to remain critical and innovative methods are required to target the rising widespread resistance that renders conventional therapies unusable. The prolific use of auxiliary metallo-fragments has augmented the search for novel drug regimens in an attempt to combat rising resistance. The development of organometallic compounds (those containing metal-carbon bonds) as antimalarial drugs has been exemplified by the clinical development of ferroquine in the nascent field of Bioorganometallic Chemistry. With their inherent physicochemical properties, organometallic complexes can modulate the discipline of chemical biology by proffering different modes of action and targeting various enzymes. With the beneficiation of platinum group metals (PGMs) in mind, this review aims to describe recent studies on the antimalarial activity of PGM-based organometallic complexes. This review does not provide an exhaustive coverage of the literature but focusses on recent advances of bioorganometallic antimalarial drug leads, including a brief mention of recent trends comprising interactions with biomolecules such as heme and intracellular catalysis. This resource can be used in parallel with complementary reviews on metal-based complexes tested against malaria.
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17
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Nagaraja S, Ankri S. Target identification and intervention strategies against amebiasis. Drug Resist Updat 2019; 44:1-14. [PMID: 31112766 DOI: 10.1016/j.drup.2019.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 04/27/2019] [Accepted: 04/30/2019] [Indexed: 12/22/2022]
Abstract
Entamoeba histolytica is the etiological agent of amebiasis, which is an endemic parasitic disease in developing countries and is the cause of approximately 70,000 deaths annually. E. histolytica trophozoites usually reside in the colon as a non-pathogenic commensal in most infected individuals (90% of infected individuals are asymptomatic). For unknown reasons, these trophozoites can become virulent and invasive, cause amebic dysentery, and migrate to the liver where they cause hepatocellular damage. Amebiasis is usually treated either by amebicides which are classified as (a) luminal and are active against the luminal forms of the parasite, (b) tissue and are effective against those parasites that have invaded tissues, and (c) mixed and are effective against the luminal forms of the parasite and those forms which invaded the host's tissues. Of the amebicides, the luminal amebicide, metronidazole (MTZ), is the most widely used drug to treat amebiasis. Although well tolerated, concerns about its adverse effects and the possible emergence of MTZ-resistant strains of E. histolytica have led to the development of new therapeutic strategies against amebiasis. These strategies include improving the potency of existing amebicides, discovering new uses for approved drugs (repurposing of existing drugs), drug rediscovery, vaccination, drug targeting of essential E. histolytica components, and the use of probiotics and bioactive natural products. This review examines each of these strategies in the light of the current knowledge on the gut microbiota of patients with amebiasis.
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Affiliation(s)
- Shruti Nagaraja
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Serge Ankri
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
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18
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Rylands LI, Welsh A, Maepa K, Stringer T, Taylor D, Chibale K, Smith GS. Structure-activity relationship studies of antiplasmodial cyclometallated ruthenium(II), rhodium(III) and iridium(III) complexes of 2-phenylbenzimidazoles. Eur J Med Chem 2019; 161:11-21. [DOI: 10.1016/j.ejmech.2018.10.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/03/2018] [Accepted: 10/09/2018] [Indexed: 12/24/2022]
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19
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Malaria, tuberculosis and HIV: what's new? Contribution of the Institut Hospitalo-Universitaire Méditerranée Infection in updated data. New Microbes New Infect 2018; 26:S23-S30. [PMID: 30402240 PMCID: PMC6205578 DOI: 10.1016/j.nmni.2018.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 06/01/2018] [Accepted: 06/05/2018] [Indexed: 11/22/2022] Open
Abstract
The Institut Hospitalo-Universitaire Méditerranée Infection is positioned for the diagnosis, prevention and treatment of the ‘big three’ killer diseases: malaria, tuberculosis and HIV. We implemented the use of new diagnostic samples such as stools and new diagnostic tests such as mass spectrometry for the dual identification of vectors and pathogens. Furthermore, advances in the prevention and treatment of malaria and tuberculosis are reviewed, along with advances in the understanding of the role of microbiota in the resistance to HIV infection. These achievements represent a major step towards a better management of the ‘big three’ diseases worldwide.
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20
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Rice DR, de Lourdes Betancourt Mendiola M, Murillo-Solano C, Checkley LA, Ferdig MT, Pizarro JC, Smith BD. Antiplasmodial activity of targeted zinc(II)-dipicolylamine complexes. Bioorg Med Chem 2017; 25:2754-2760. [PMID: 28377170 DOI: 10.1016/j.bmc.2017.03.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 03/20/2017] [Accepted: 03/23/2017] [Indexed: 12/29/2022]
Abstract
This study measured the antiplasmodial activity of nine zinc-dipicolylamine (ZnDPA) complexes against three strains of Plasmodium falciparum, the causative parasite of malaria. Growth inhibition assays showed significant activity against all tested strains, with 50% inhibitory concentrations between 5 and 600nM and almost no toxic effect against host cells including healthy red blood cells. Fluorescence microscopy studies with a green-fluorescent ZnDPA probe showed selective targeting of infected red blood cells. The results suggest that ZnDPA coordination complexes are promising antiplasmodial agents with potential for targeted malaria treatment.
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Affiliation(s)
- Douglas R Rice
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | | | - Claribel Murillo-Solano
- Department of Tropical Medicine, J Bennett Johnston Building, 1430 Tulane Avenue, Tulane University, New Orleans, LA 70112, USA
| | - Lisa A Checkley
- Department of Biological Science, Galvin Life Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Michael T Ferdig
- Department of Biological Science, Galvin Life Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Juan C Pizarro
- Department of Tropical Medicine, J Bennett Johnston Building, 1430 Tulane Avenue, Tulane University, New Orleans, LA 70112, USA
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA.
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21
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Mukaya HE, van Zyl RL, van Vuuren NJ, Mbianda XY. Synthesis and characterization of water-soluble polyaspartamides containing platinum(II) complex and bisphosphonate as potential antimalarial drug. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1886-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Triaki N, Zaater S, Abtouche S, Brahimi M. Structure and electronics properties of novel antimalarial molecules: Comparative study of ferrotriborodiazoquine and ferrodiborotriazoquine with ferroquine using density functional theory. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Chloroquine-containing organoruthenium complexes are fast-acting multistage antimalarial agents. Parasitology 2016; 143:1543-56. [PMID: 27439976 DOI: 10.1017/s0031182016001153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We report the pharmacological activity of organoruthenium complexes containing chloroquine (CQ) as a chelating ligand. The complexes displayed intraerythrocytic activity against CQ-sensitive 3D7 and CQ-resistant W2 strains of Plasmodium falciparum, with potency and selectivity indexes similar to those of CQ. Complexes displayed activity against all intraerythrocytic stages, but moderate activity against Plasmodium berghei liver stages. However, unlike CQ, organoruthenium complexes impaired gametocyte viability and exhibited fast parasiticidal activity against trophozoites for P. falciparum. This functional property results from the ability of complexes to quickly induce oxidative stress. The parasitaemia of P. berghei-infected mice was reduced by treatment with the complex. Our findings demonstrated that using chloroquine for the synthesis of organoruthenium complexes retains potency and selectivity while leading to an increase in the spectrum of action and parasite killing rate relative to CQ.
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