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Froment A, Delomez J, Da Nascimento S, Dassonville-Klimpt A, Andréjak C, Peltier F, Joseph C, Sonnet P, Lanoix JP. Efficacy of mefloquine and its enantiomers in a murine model of Mycobacterium avium infection. PLoS One 2024; 19:e0311167. [PMID: 39348373 PMCID: PMC11441642 DOI: 10.1371/journal.pone.0311167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 09/13/2024] [Indexed: 10/02/2024] Open
Abstract
The treatment of Mycobacterium avium infections is still long, complex, and often poorly tolerated, besides emergence of resistances. New active molecules that are more effective and better tolerated are deeply needed. Mefloquine and its enantiomers ((+) Erythro-mefloquine ((+)-EMQ) and (-)-Erythro-mefloquine ((-)-EMQ)) have shown efficacy in both in vitro and in vivo, in a mouse model of M. avium intraveinous infection. However, no study reports aerosol model of infection or combination with gold standard treatment. That was the aim of our study. In an aerosol model of M. avium infection in BALB/c mice, we used five treatment groups as followed: Clarithromycin-Ethambutol-Rifampicin (CLR-EMB-RIF, standard of care, n = 15), CLR-EMB-MFQ (n = 15), CLR-EMB-(+)-EMQ (n = 15), CLR-EMB-(-)-EMQ (n = 15) and an untreated group (n = 25). To evaluate drug efficacy, we sacrificed each month over 3 months, 5 mice from each group. Lung homogenates were diluted and plated for colony forming unit count (CFU) expressed in Log10. At each time point, we found a significant difference between the untreated group and each of the treatment groups (p<0.005). The (+)-EMQ-CLR-EMB group was the group with the lowest CFU count at each time point but never reached statistical significance. The results of each group 3 months after treatment are: (+)-EMQ-CLR-EMB (4.43 ± 0.26), RIF-CLR-EMB (4.83 ± 0.37), (-)-EMQ-CLR-EMB (4.82 ± 0.18), MFQ-CLR-EMB (4.70 ± 0.21). In conclusion, MFQ and its enantiomers appear to be as effective as rifampicin in combination therapy. Further studies are needed to evaluate the ability of these drugs to prevent selection of clarithromycin resistant strains and potential for lung sterilization.
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Affiliation(s)
- Antoine Froment
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
- Infectious Disease Department, Amiens-Picardie University Hospital, Amiens, France
| | - Julia Delomez
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
- Pneumology Department, Amiens-Picardie University Hospital, Amiens, France
| | | | | | - Claire Andréjak
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
- Pneumology Department, Amiens-Picardie University Hospital, Amiens, France
| | - François Peltier
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
| | - Cédric Joseph
- Infectious Disease Department, Amiens-Picardie University Hospital, Amiens, France
| | - Pascal Sonnet
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
| | - Jean-Philippe Lanoix
- AGIR UR-4294, Université de Picardie Jules Verne, Amiens, France
- Infectious Disease Department, Amiens-Picardie University Hospital, Amiens, France
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Durand A, Mathiron D, Rigaud S, Djedaini-Pilard F, Marçon F. Rapid Study on Mefloquine Hydrochloride Complexation with Hydroxypropyl-β-Cyclodextrin and Randomly Methylated β-Cyclodextrin: Phase Diagrams, Nuclear Magnetic Resonance Analysis, and Stability Assessment. Pharmaceutics 2023; 15:2794. [PMID: 38140134 PMCID: PMC10747339 DOI: 10.3390/pharmaceutics15122794] [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: 10/19/2023] [Revised: 12/04/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
This study investigates the complexation of mefloquine hydrochloride by cyclodextrins to improve its solubility in order to design an oral solution. This approach may enhance the effectiveness of mefloquine, a drug which can be used for malaria prophylaxis and treatment in children. Mefloquine hydrochloride's solubility was assessed in different buffer solutions, and its quantification was achieved through high-performance liquid chromatography. The complexation efficiency with cyclodextrins was evaluated, and nuclear magnetic resonance (NMR) methods were employed to determine the interactions between mefloquine and cyclodextrins. Mefloquine's solubility increased when combined with hydroxypropyl-β-cyclodextrin (HP-β-CD) and randomly methylated β-cyclodextrin (RAMEB), with RAMEB being more effective. The drug's solubility varied across different pH buffers, being higher in acidic buffers. Interestingly, mefloquine's solubility decreased with a citrate buffer, possibly due to precipitation. The NMR studies highlighted non-covalent interactions between RAMEB, HP-β-CD, and mefloquine, explaining the solubilizing effect via complexation phenomena. Furthermore, the NMR experiments indicated the complexation of mefloquine by all the studied cyclodextrins, forming diastereoisomeric complexes. Cyclodextrin complexation improved mefloquine's solubility, potentially impacting its bioavailability.
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Affiliation(s)
- Amaury Durand
- AGIR UR 4294, UFR de Pharmacie, Université de Picardie Jules Verne, 80037 Amiens, France;
- Pharmacie à Usage Intérieur, Centre Hospitalier Universitaire d’Amiens–Picardie, 80054 Amiens, France
| | - David Mathiron
- Plateforme Analytique, Université de Picardie Jules Verne, 80039 Amiens, France;
| | - Sébastien Rigaud
- LG2A UR 7378, UFR des Sciences, Université de Picardie Jules Verne, 80039 Amiens, France; (S.R.); (F.D.-P.)
| | - Florence Djedaini-Pilard
- LG2A UR 7378, UFR des Sciences, Université de Picardie Jules Verne, 80039 Amiens, France; (S.R.); (F.D.-P.)
| | - Frédéric Marçon
- AGIR UR 4294, UFR de Pharmacie, Université de Picardie Jules Verne, 80037 Amiens, France;
- Pharmacie à Usage Intérieur, Centre Hospitalier Universitaire d’Amiens–Picardie, 80054 Amiens, France
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Guillon J, Cohen A, Boudot C, Monic S, Savrimoutou S, Moreau S, Albenque-Rubio S, Lafon-Schmaltz C, Dassonville-Klimpt A, Mergny JL, Ronga L, Bernabeu de Maria M, Lamarche J, Lago CD, Largy E, Gabelica V, Moukha S, Dozolme P, Agnamey P, Azas N, Mullié C, Courtioux B, Sonnet P. Design, Synthesis, and Antiprotozoal Evaluation of New Promising 2,9- Bis[(substituted-aminomethyl)]-4,7-phenyl-1,10-phenanthroline Derivatives, a Potential Alternative Scaffold to Drug Efflux. Pathogens 2022; 11:1339. [PMID: 36422591 PMCID: PMC9699089 DOI: 10.3390/pathogens11111339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/19/2023] Open
Abstract
A series of novel 2,9-bis[(substituted-aminomethyl)]-4,7-phenyl-1,10-phenanthroline derivatives was designed, synthesized, and evaluated in vitro against three protozoan parasites (Plasmodium falciparum, Leishmania donovani and Trypanosoma brucei brucei). Pharmacological results showed antiprotozoal activity with IC50 values in the sub and μM range. In addition, the in vitro cytotoxicity of these original molecules was assessed with human HepG2 cells. The substituted diphenylphenanthroline 1l was identified as the most potent antimalarial derivative with a ratio of cytotoxic to antiparasitic activities of 505.7 against the P. falciparum CQ-resistant strain W2. Against the promastigote forms of L. donovani, the phenanthrolines 1h, 1j, 1n and 1o were the most active with IC50 from 2.52 to 4.50 μM. The phenanthroline derivative 1o was also identified as the most potent trypanosomal candidate with a selectivity index (SI) of 91 on T. brucei brucei strain. FRET melting and native mass spectrometry experiments evidenced that the nitrogen heterocyclic derivatives bind the telomeric G-quadruplexes of P. falciparum and Trypanosoma. Moreover, as the telomeres of the parasites P. falciparum and Trypanosoma could be considered to be possible targets of this kind of nitrogen heterocyclic derivatives, their potential ability to stabilize the parasitic telomeric G-quadruplexes have been determined through the FRET melting assay and by native mass spectrometry.
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Affiliation(s)
- Jean Guillon
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Anita Cohen
- Faculty of Pharmacy, University of Aix-Marseille, IRD, AP-HM, SSA, VITROME, F-13005 Marseille, France
| | - Clotilde Boudot
- Faculty of Pharmacy, Institute of Neuroepidemiology and Tropical Neurology, University of Limoges, INSERM U1094, F-87025 Limoges, France
| | - Sarah Monic
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Solène Savrimoutou
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Stéphane Moreau
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Sandra Albenque-Rubio
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Camille Lafon-Schmaltz
- Faculty of Pharmacy, University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, F-33000 Bordeaux, France
| | - Alexandra Dassonville-Klimpt
- Faculty of Pharmacy, Agents Infectieux, Résistance et Chimiothérapie (AGIR), UR 4294, UFR de Pharmacie, University of Picardie Jules Verne, F-80037Amiens, France
| | - Jean-Louis Mergny
- Laboratoire d’Optique et Biosciences, Institut Polytechnique de Paris, Ecole Polytechnique, CNRS, INSERM, F- 91128 Palaiseau, France
| | - Luisa Ronga
- Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM, F-64012 Pau, France
| | | | - Jeremy Lamarche
- Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM, F-64012 Pau, France
| | - Cristina Dal Lago
- University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, IECB, F-33600 Pessac, France
| | - Eric Largy
- University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, IECB, F-33600 Pessac, France
| | - Valérie Gabelica
- University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, IECB, F-33600 Pessac, France
| | - Serge Moukha
- Centre de Recherche Cardio-thoracique de Bordeaux (CRCTB), UMR U1045 INSERM, PTIB-Hôpital Xavier Arnozan, F-33600 Pessac, France
- INRAE Bordeaux Aquitaine, F- 33140 Villenave-d’Ornon, France
| | - Pascale Dozolme
- Centre de Recherche Cardio-thoracique de Bordeaux (CRCTB), UMR U1045 INSERM, PTIB-Hôpital Xavier Arnozan, F-33600 Pessac, France
- INRAE Bordeaux Aquitaine, F- 33140 Villenave-d’Ornon, France
| | - Patrice Agnamey
- Faculty of Pharmacy, Agents Infectieux, Résistance et Chimiothérapie (AGIR), UR 4294, UFR de Pharmacie, University of Picardie Jules Verne, F-80037Amiens, France
| | - Nadine Azas
- Faculty of Pharmacy, University of Aix-Marseille, IRD, AP-HM, SSA, VITROME, F-13005 Marseille, France
| | - Catherine Mullié
- Faculty of Pharmacy, Agents Infectieux, Résistance et Chimiothérapie (AGIR), UR 4294, UFR de Pharmacie, University of Picardie Jules Verne, F-80037Amiens, France
| | - Bertrand Courtioux
- Faculty of Pharmacy, Institute of Neuroepidemiology and Tropical Neurology, University of Limoges, INSERM U1094, F-87025 Limoges, France
| | - Pascal Sonnet
- Faculty of Pharmacy, Agents Infectieux, Résistance et Chimiothérapie (AGIR), UR 4294, UFR de Pharmacie, University of Picardie Jules Verne, F-80037Amiens, France
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Dassonville-Klimpt A, Schneider J, Damiani C, Tisnerat C, Cohen A, Azas N, Marchivie M, Guillon J, Mullié C, Agnamey P, Totet A, Dormoi J, Taudon N, Pradines B, Sonnet P. Design, synthesis, and characterization of novel aminoalcohol quinolines with strong in vitro antimalarial activity. Eur J Med Chem 2021; 228:113981. [PMID: 34782182 DOI: 10.1016/j.ejmech.2021.113981] [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: 10/12/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 12/16/2022]
Abstract
Malaria is the fifth most lethal parasitic infections in the world. Herein, five new series of aminoalcohol quinolines including fifty-two compounds were designed, synthesized and evaluated in vitro against Pf3D7 and PfW2 strains. Among them, fourteen displayed IC50 values below or near of 50.0 nM whatever the strain with selectivity index often superior to 100.17b was found as a promising antimalarial candidate with IC50 values of 14.9 nM and 11.0 nM against respectively Pf3D7 and PfW2 and a selectivity index higher than 770 whatever the cell line is. Further experiments were achieved to confirm the safety and to establish the preliminary ADMET profile of compound 17b before the in vivo study performed on a mouse model of P. berghei ANKA infection. The overall data of this study allowed to establish new structure-activity relationships and the development of novel agents with improved pharmacokinetic properties.
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Affiliation(s)
- A Dassonville-Klimpt
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France.
| | - J Schneider
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - C Damiani
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - C Tisnerat
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - A Cohen
- Université Aix-Marseille, IRD, AP-HM, SSA, VITROME, IHU Méditerranée Infection, Marseille, France
| | - N Azas
- Université Aix-Marseille, IRD, AP-HM, SSA, VITROME, IHU Méditerranée Infection, Marseille, France
| | - M Marchivie
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F- 33600 Pessac, France
| | - J Guillon
- Université de Bordeaux, Laboratoire ARNA, UFR des Sciences Pharmaceutiques, Bordeaux, France; INSERM U1212, UMR CNRS 5320, Laboratoire ARNA, Bordeaux, France
| | - C Mullié
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - P Agnamey
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - Anne Totet
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - J Dormoi
- Unité parasitologie et entomologie, Département de microbiologie et de maladies infectieuses, Institut de recherche biomédicale des armées, Marseille, France; Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - N Taudon
- Unité de Développements Analytiques et Bioanalyse, IRBA, Brétigny-sur-Orge, France
| | - B Pradines
- Unité parasitologie et entomologie, Département de microbiologie et de maladies infectieuses, Institut de recherche biomédicale des armées, Marseille, France; Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, Marseille, France; IHU Méditerranée Infection, Marseille, France; Centre national de référence du paludisme, Marseille, France
| | - P Sonnet
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France.
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Efflux Pump Overexpression Profiling in Acinetobacter baumannii and Study of New 1-(1-Naphthylmethyl)-Piperazine Analogs as Potential Efflux Inhibitors. Antimicrob Agents Chemother 2021; 65:e0071021. [PMID: 34097483 DOI: 10.1128/aac.00710-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Overexpression of efflux pumps extruding antibiotics currently used for the treatment of Acinetobacter baumannii infections has been described as an important mechanism causing antibiotic resistance. The first aim of this work was to phenotypically evaluate the overexpression of efflux pumps on a collection of 124 ciprofloxacin-resistant A. baumannii strains. An overexpression of genes encoding one or more efflux pumps was obtained for 19 out of the 34 strains with a positive phenotypic efflux (56%). The most frequent genes overexpressed were those belonging to the RND family, with adeJ being the most prevalent (50%). Interestingly, efflux pump genes coding for MATE and MFS families were also overexpressed quite frequently: abeM (32%) and abaQ (26%). The second aim was to synthesize 1-(1-naphthylmethyl)-piperazine analogs as potential new efflux pump inhibitors and biologically evaluate them against strains with a positive phenotypic efflux. Quinoline and pyridine analogs were found to be more effective than their parent compound, 1-(1-naphthyl methyl)-piperazine. Stereochemistry also played an important part in the inhibitory activity, as quinoline derivative (R)-3a was identified as being the most effective and less cytotoxic. Its inhibitory activity was also correlated with the number of efflux pumps expressed by a strain. The results obtained in this work suggest that quinoline analogs of 1-(1-naphthylmethyl)-piperazine are promising leads in the development of new anti-Acinetobacter baumannii therapeutic alternatives in combination with antibiotics for which an efflux-mediated resistance is suspected.
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Bentzinger G, Pair E, Guillon J, Marchivie M, Mullié C, Agnamey P, Dassonville-Klimpt A, Sonnet P. Enantiopure substituted pyridines as promising antimalarial drug candidates. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Laumaillé P, Dassonville-Klimpt A, Peltier F, Mullié C, Andréjak C, Da-Nascimento S, Castelain S, Sonnet P. Synthesis and Study of New Quinolineaminoethanols as Anti-Bacterial Drugs. Pharmaceuticals (Basel) 2019; 12:E91. [PMID: 31216783 PMCID: PMC6630482 DOI: 10.3390/ph12020091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 11/22/2022] Open
Abstract
The lack of antibiotics with a novel mode of action associated with the spread of drug resistant bacteria make the fight against infectious diseases particularly challenging. A quinoline core is found in several anti-infectious drugs, such as mefloquine and bedaquiline. Two main objectives were set in this work. Firstly, we evaluated the anti-mycobacterial properties of the previous quinolines 3, which have been identified as good candidates against ESKAPEE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter spp. and Escherichia coli) bacteria. Secondly, a new series 4 was designed and assessed against the same bacteria strains, taking the pair of enantiomers 3m/3n as the lead. More than twenty compounds 4 were prepared through a five-step asymmetric synthesis with good enantiomeric excesses (>90%). Interestingly, all compounds of series 3 were efficient on M. avium with MIC = 2-16 µg/mL, while series 4 was less active. Both series 3 and 4 were generally more active than mefloquine against the ESKAPEE bacteria. The quinolines 4 were either active against Gram-positive bacteria (MIC ≤ 4 µg/mL for 4c-4h and 4k/4l) or E. coli (MIC = 32-64 µg/mL for 4q-4v) according to the global lipophilicity of these compounds.
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Affiliation(s)
- Pierre Laumaillé
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
| | | | - François Peltier
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
- Department of Bacteriology, Amiens University Hospital, 80054 Amiens, France.
| | - Catherine Mullié
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
| | - Claire Andréjak
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
- Respiratory and Intensive Care Unit, University Hospital Amiens, 80054 Amiens, France.
| | - Sophie Da-Nascimento
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
| | - Sandrine Castelain
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
- Department of Bacteriology, Amiens University Hospital, 80054 Amiens, France.
| | - Pascal Sonnet
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France.
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Delpe Acharige AMDS, Brennan MPC, Lauder K, McMahon F, Odebunmi AO, Durrant MC. Computational insights into the inhibition of β-haematin crystallization by antimalarial drugs. Dalton Trans 2018; 47:15364-15381. [PMID: 30298161 DOI: 10.1039/c8dt03369b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
During the red blood cell phase of their life cycle, malaria parasites digest their host's haemoglobin, with concomitant release of potentially toxic iron(iii) protoporphyrin IX (FePPIX). The parasites' strategy for detoxification of FePPIX involves its crystallization to haemozoin, such that the build-up of free haem in solution is avoided. Antimalarial drugs of both historical importance and current clinical use are known to be capable of disrupting the growth of crystals of β-haematin, which is the synthetic equivalent of haemozoin. Hence, the disruption of haemozoin crystal growth is implicated as a possible mode of action of such drugs. However, the details of β-haematin crystal poisoning at the molecular level have yet to be fully elucidated. In this study, we have used a combination of density functional theory (DFT) and molecular modelling to examine the possible modes of action of ten different antimalarial drugs, including quinine-type aliphatic alcohols, amodiaquine-type phenols, and chloroquine-type aliphatic diamines. The DFT calculations indicate that each of the drugs can form at least one molecular complex with FePPIX. These complexes have 1 : 1 or 2 : 1 FePPIX : drug stoichiometries and all of them incorporate Fe-O bonds, formed either by direct coordination of a zwitterionic form of the drug, or by deprotonation of water. Most of the drugs can form more than one such complex. We have used the DFT model structures to explore the possible formation of a monolayer of each drug-haem complex on four of the β-haematin crystal faces. In all cases, the drug complexes can form a monolayer on the fast-growing {001} and {011} faces, but not on the slower growing {010} and {100} faces. Additional modelling of the chloroquine and quinidine complexes shows that individual molecules of these species can also obstruct the growth of new layers on other crystal faces. The implications of these observations for antimalarial drug development are discussed.
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Affiliation(s)
- Anjana M D S Delpe Acharige
- Faculty of Health and Life Sciences, Northumbria University, Ellison Building, Newcastle-upon-Tyne NE2 8ST, UK.
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Zanardi MM, Biglione FA, Sortino MA, Sarotti AM. General Quantum-Based NMR Method for the Assignment of Absolute Configuration by Single or Double Derivatization: Scope and Limitations. J Org Chem 2018; 83:11839-11849. [DOI: 10.1021/acs.joc.8b01749] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María M. Zanardi
- Área Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
- Facultad de Química e Ingeniería del Rosario, Pontificia Universidad Católica Argentina, Av. Pellegrini 3314, Rosario 2000, Argentina
| | - Franco A. Biglione
- Facultad de Química e Ingeniería del Rosario, Pontificia Universidad Católica Argentina, Av. Pellegrini 3314, Rosario 2000, Argentina
| | - Maximiliano A. Sortino
- Área Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Ariel M. Sarotti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
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Al‐Massaedh “AA, Schmidt M, Pyell U, Reinscheid UM. Elucidation of the Enantiodiscrimination Properties of a Nonracemic Chiral Alignment Medium through Gel-based Capillary Electrochromatography: Separation of the Mefloquine Stereoisomers. ChemistryOpen 2016; 5:455-459. [PMID: 27777838 PMCID: PMC5062011 DOI: 10.1002/open.201600085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 11/07/2022] Open
Abstract
Enantiodiscrimination and enantioseparation are two highly important processes in chemistry, often performed by using NMR spectroscopy and chromatography. For a better understanding of the mechanistic details, the same system should be studied by both methods. In addition, isotropic and anisotropic NMR parameters should be obtained, the latter using alignment media so that residual dipolar couplings and chemical-shift anisotropies can be measured. Consequently, a chiral alignment medium was used for the first time in chiral gel-based capillary electrochromatography with the four stereoisomers of the antimalaria drug mefloquine as test compounds. Chromatographic data verify that enantiodiscrimination obtained with this alignment gel is caused by differences in the equilibrium constants related to associate formation. Hence, the chromatographic separation provides physicochemical data that form a basis for the understanding and optimization of alignment processes, and vice versa.
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Affiliation(s)
- “Ayat Allah” Al‐Massaedh
- Department of ChemistryUniversity of MarburgHans-Meerwein-Straße35032MarburgGermany
- Department of ChemistryFaculty of ScienceAl al-Bayt University25113MafraqJordan
| | - Manuel Schmidt
- Department of NMR-based Structural BiologyMax-Planck-Institute for Biophysical ChemistryAm Fassberg 1137077GöttingenGermany
| | - Ute Pyell
- Department of ChemistryUniversity of MarburgHans-Meerwein-Straße35032MarburgGermany
| | - Uwe M. Reinscheid
- Department of NMR-based Structural BiologyMax-Planck-Institute for Biophysical ChemistryAm Fassberg 1137077GöttingenGermany
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11
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Wardell JL, Wardell SMSV, Tiekink ERT. A kryptoracemic salt: 2-{[2,8-bis-(tri-fluoro-meth-yl)quinolin-4-yl](hy-droxy)meth-yl}piperidin-1-ium (+)-3,3,3-tri-fluoro-2-meth-oxy-2-phenyl-propanoate. Acta Crystallogr E Crystallogr Commun 2016; 72:872-7. [PMID: 27308063 PMCID: PMC4908568 DOI: 10.1107/s2056989016008495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 03/26/2024]
Abstract
The asymmetric unit of the title salt, C17H17F6N2O(+)·C10H8F3O3 (-), comprises two piperidin-1-ium cations and two carboxyl-ate anions. The cations, each having an l-shaped conformation owing to the near orthogonal relationship between the quinolinyl and piperidin-1-ium residues, are pseudo-enanti-omeric. The anions have the same absolute configuration but differ in the relative orientations of the carboxyl-ate, meth-oxy and benzene groups. Arguably, the most prominent difference between the anions occurs about the Cq-Om bond as seen in the Cc-Cq-Om-Cm torsion angles of -176.1 (3) and -67.1 (4)°, respectively (q = quaternary, m = meth-oxy and c = carboxyl-ate). The presence of Oh-H⋯Oc and Np-H⋯Oc hydrogen bonds leads to the formation of a supra-molecular chain along the a axis (h = hy-droxy and p = piperidin-1-ium); weak intra-molecular Np-H⋯Oh hydrogen bonds are also noted. Chains are connected into a three-dimensional architecture by C-H⋯F inter-actions. Based on a literature survey, related mol-ecules/cations adopt a uniform conformation in the solid state based on the letter L.
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Affiliation(s)
- James L. Wardell
- Fundaçaö Oswaldo Cruz, Instituto de Tecnologia em Fármacos-Far Manguinhos, 21041-250 Rio de Janeiro, RJ, Brazil
| | | | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, Faculty of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
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12
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Crystal structure and Hirshfeld analysis of the kryptoracemate: bis(mefloquinium) chloride p-fluorobenzenesulphonate. Z KRIST-CRYST MATER 2016. [DOI: 10.1515/zkri-2015-1914] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The crystal structure analysis of the bis(mefloquinium) chloride p-fluorobenzenesulphonate salt reveals a rare example of a kryptoracemate given that the cations exhibit a non-crystallographic enantiomeric relationship. The conformations of the cations are based on a skewed letter L with the (piperidinium-2-yl)methanol group sitting almost normal to and directed away from the quinolinyl residue. The most prominent feature of the molecular packing is the formation of supramolecular helical chains along the a-axis, being sustained by pairs of hydroxyl-O–H···O (sulphonate), piperidinium-N–H···O (sulphonate) and piperidinium-N–H···Cl hydrogen bonds. Geometric and Hirshfeld surface analyses of the crystal structure shows significant differences in supramolecular aggregation between the cations due to the presence of different anions and this is the likely reason for the observed kryptoracemic behaviour.
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13
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Kohout M, Vandenbussche J, Roller A, Tůma J, Bogaerts J, Bultinck P, Herrebout W, Lindner W. Absolute configuration of the antimalarial erythro-mefloquine – vibrational circular dichroism and X-ray diffraction studies of mefloquine and its thiourea derivative. RSC Adv 2016. [DOI: 10.1039/c6ra19367f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The long-standing discussion of the absolute configuration of erythro-mefloquine is revisited, showcasing the strength of a combination of experimental and calculated vibrational circular dichroism spectroscopy.
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Affiliation(s)
- M. Kohout
- Department of Organic Chemistry
- University of Chemistry and Technology Prague
- Technická 5
- 166 28 Prague
- Czech Republic
| | - J. Vandenbussche
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - A. Roller
- Institute of Inorganic Chemistry
- University of Vienna
- 1090 Vienna
- Austria
| | - J. Tůma
- Department of Organic Chemistry
- University of Chemistry and Technology Prague
- Technická 5
- 166 28 Prague
- Czech Republic
| | - J. Bogaerts
- Department of Chemistry
- University of Antwerp
- 2020 Antwerp
- Belgium
| | - P. Bultinck
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - W. Herrebout
- Department of Chemistry
- University of Antwerp
- 2020 Antwerp
- Belgium
| | - W. Lindner
- Institute of Analytical Chemistry
- University of Vienna
- 1090 Vienna
- Austria
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14
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Bentzinger G, De Souza W, Mullié C, Agnamey P, Dassonville-Klimpt A, Sonnet P. Asymmetric synthesis of new antimalarial aminoquinolines through Sharpless aminohydroxylation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2015.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Mullié C, Taudon N, Degrouas C, Jonet A, Pascual A, Agnamey P, Sonnet P. Enantiomerically pure amino-alcohol quinolines: in vitro anti-malarial activity in combination with dihydroartemisinin, cytotoxicity and in vivo efficacy in a Plasmodium berghei mouse model. Malar J 2014; 13:407. [PMID: 25319003 PMCID: PMC4203867 DOI: 10.1186/1475-2875-13-407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 10/10/2014] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND As resistance to marketed anti-malarial drugs continues to spread, the need for new molecules active on Plasmodium falciparum-resistant strains grows. Pure (S) enantiomers of amino-alcohol quinolines previously displayed a good in vitro anti-malarial activity. Therefore, a more thorough assessment of their potential clinical use through a rodent model and an in vitro evaluation of their combination with artemisinin was undertaken. METHODS Screening on a panel of P. falciparum clones with varying resistance profiles and regional origins was performed for the (S)-pentyl and (S)-heptyl substituted quinoline derivatives, followed by an in vitro assessment of their combination with dihydroartemisinin (DHA) on the 3D7 clone and an in vivo assay in a mouse model infected with Plasmodium berghei. Their haemolytic activity was also determined. RESULTS A steady anti-malarial activity of the compounds tested was found, whatever the resistance profile or the regional origin of the strain. (S)-quinoline derivatives were at least three times more potent than mefloquine (MQ), their structurally close parent. The in vitro combination with DHA yielded an additive or synergic effect for both that was as good as that of the DHA/MQ combination. In vivo, survival rates were similar to those of MQ for the two compounds at a lower dose, despite a lack of clearance of the parasite blood stages. A 50% haemolysis was observed for concentrations at least 1,000-fold higher than the antiplasmodial IC50s. CONCLUSIONS The results obtained make those two (S)-amino-alcohol quinoline derivatives good candidates for the development of new artemisinin-based combination therapy (ACT), hopefully with fewer neurologic side effects than those currently marketed ACT, including MQ.
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Affiliation(s)
- Catherine Mullié
- />Equipe Théra - Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) FRE-CNRS 3517, Université de Picardie Jules Verne, UFR de Pharmacie, 1 rue des Louvels, 80037 Amiens Cedex 1, France
| | - Nicolas Taudon
- />UMR-MD3, Institut de Recherche Biomédicale des Armées, BP 73, 91223 Brétigny-sur-Orge, France
| | - Camille Degrouas
- />UMR-MD3, Institut de Recherche Biomédicale des Armées, Faculté de Pharmacie, Aix-Marseille Université, 27 Bd Jean Moulin CS30064, 13385 Marseille cedex 5, France
| | - Alexia Jonet
- />Equipe Théra - Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) FRE-CNRS 3517, Université de Picardie Jules Verne, UFR de Pharmacie, 1 rue des Louvels, 80037 Amiens Cedex 1, France
| | - Aurélie Pascual
- />Département d’Infectiologie de Terrain, Unité de Parasitologie, Institut de Recherche Biomédicale des Armées, Marseille, France
| | - Patrice Agnamey
- />Equipe Théra - Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) FRE-CNRS 3517, Université de Picardie Jules Verne, UFR de Pharmacie, 1 rue des Louvels, 80037 Amiens Cedex 1, France
- />Laboratoire de Parasitologie et Mycologie, Amiens University Hospital, Avenue Laënnec, 80054 Amiens, France
| | - Pascal Sonnet
- />Equipe Théra - Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) FRE-CNRS 3517, Université de Picardie Jules Verne, UFR de Pharmacie, 1 rue des Louvels, 80037 Amiens Cedex 1, France
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16
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Schützenmeister N, Müller M, Reinscheid UM, Griesinger C, Leonov A. Trapped in misbelief for almost 40 years: selective synthesis of the four stereoisomers of mefloquine. Chemistry 2013; 19:17584-8. [PMID: 24226934 DOI: 10.1002/chem.201303403] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Indexed: 11/09/2022]
Abstract
Here we report the synthesis of all four stereoisomers of mefloquine. Mefloquine (Lariam) is an important anti-malaria drug that is applied as a racemate of the erythro form. However, the (-)-isomer induces psychosis, while the (+)-enantiomer does not have this undesired side effect. There are six syntheses of which five lead to the wrong enantiomer without the authors of these syntheses noting that they had synthesized the wrong compound. At the same time physical chemistry investigations had assigned the absolute configuration correctly and the last enantioselective synthesis that took these results into account delivered the correct absolute configuration. Since various synthetic approaches failed to provide the correct stereoisomers in previous syntheses, we submit here a synthetic approach with a domino Sonogashira-6π-electrocyclisation as key step that confirmed synthetically the correct absolute configuration of all four isomers.
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Affiliation(s)
- Nina Schützenmeister
- Max-Planck-Institute of Biophysical Chemistry, Department of NMR-Based Structural Biology, Am Fassberg 11, 37077 Göttingen (Germany), Fax: (+49) 551 201-2202
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