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Synthesis, molecular docking and ADME prediction of some new benzimidazole carboxamidines derivatives as antimicrobial agents. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02621-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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2
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Erol M, Celik I, Temiz-Arpaci O, Goker H, Kaynak-Onurdag F, Okten S. 1 H-Benzimidazole-5-carboxamidine derivatives: design, synthesis, molecular docking, DFT and antimicrobial studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj01899f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
15 new 1H-benzimidazole-5-carboxamidine derivatives were synthesized, their antimicrobial effects were evaluated, and molecular docking and DFT studies were performed.
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Affiliation(s)
- Meryem Erol
- Erciyes University
- Faculty of Pharmacy
- Department of Pharmaceutical Chemistry
- Kayseri
- Turkey
| | - Ismail Celik
- Erciyes University
- Faculty of Pharmacy
- Department of Pharmaceutical Chemistry
- Kayseri
- Turkey
| | - Ozlem Temiz-Arpaci
- Ankara University
- Faculty of Pharmacy
- Department of Pharmaceutical Chemistry
- Ankara
- Turkey
| | - Hakan Goker
- Ankara University
- Faculty of Pharmacy
- Department of Pharmaceutical Chemistry
- Ankara
- Turkey
| | - Fatma Kaynak-Onurdag
- Trakya University
- Faculty of Pharmacy
- Department of Pharmaceutical Microbiology
- Edirne
- Turkey
| | - Suzan Okten
- Trakya University
- Faculty of Pharmacy
- Department of Pharmaceutical Microbiology
- Edirne
- Turkey
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3
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Collings CK, Little DW, Schafer SJ, Anderson JN. HIV chromatin is a preferred target for drugs that bind in the DNA minor groove. PLoS One 2019; 14:e0216515. [PMID: 31887110 PMCID: PMC6936835 DOI: 10.1371/journal.pone.0216515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 12/03/2019] [Indexed: 12/25/2022] Open
Abstract
The HIV genome is rich in A but not G or U and deficient in C. This nucleotide bias controls HIV phenotype by determining the highly unusual composition of all major HIV proteins. The bias is also responsible for the high frequency of narrow DNA minor groove sites in the double-stranded HIV genome as compared to cellular protein coding sequences and the bulk of the human genome. Since drugs that bind in the DNA minor groove disrupt nucleosomes on sequences that contain closely spaced oligo-A tracts which are prevalent in HIV DNA because of its bias, it was of interest to determine if these drugs exert this selective inhibitory effect on HIV chromatin. To test this possibility, nucleosomes were reconstituted onto five double-stranded DNA fragments from the HIV-1 pol gene in the presence and in the absence of several minor groove binding drugs (MGBDs). The results demonstrated that the MGBDs inhibited the assembly of nucleosomes onto all of the HIV-1 segments in a manner that was proportional to the A-bias, but had no detectable effect on the formation of nucleosomes on control cloned fragments or genomic DNA from chicken and human. Nucleosomes preassembled onto HIV DNA were also preferentially destabilized by the drugs as evidenced by enhanced nuclease accessibility in physiological ionic strength and by the preferential loss of the histone octamer in hyper-physiological salt solutions. The drugs also selectively disrupted HIV-containing nucleosomes in yeast as revealed by enhanced nuclease accessibility of the in vivo assembled HIV chromatin and reductions in superhelical densities of plasmid chromatin containing HIV sequences. A comparison of these results to the density of A-tracts in the HIV genome indicates that a large fraction of the nucleosomes that make up HIV chromatin should be preferred in vitro targets for the MGBDs. These results show that the MGBDs preferentially disrupt HIV-1 chromatin in vitro and in vivo and raise the possibility that non-toxic derivatives of certain MGBDs might serve as a novel class of anti-HIV agents.
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Affiliation(s)
- Clayton K Collings
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, United States of America.,Broad Institute of MIT and Harvard, Cambridge, MA, United States of America
| | - Donald W Little
- University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Samuel J Schafer
- Department of Reproductive and Developmental Sciences, University of British Columbia, Vancouver, BC, Canada
| | - John N Anderson
- Department of Biological Sciences, Purdue University, West Lafayette, IN, United States of America
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4
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Rational design, molecular docking and synthesis of novel homopiperazine linked imidazo[1,2-a]pyrimidine derivatives as potent cytotoxic and antimicrobial agents. Bioorg Med Chem Lett 2019; 29:2248-2253. [PMID: 31239178 DOI: 10.1016/j.bmcl.2019.06.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/15/2019] [Accepted: 06/19/2019] [Indexed: 01/29/2023]
Abstract
Designed and synthesized novel homopiperazine linked imidazo[1,2-a]pyrimidine derivatives (10a-i, 11a-g, 12), and evaluated them for their in vitro cytotoxicity against HeLa cells (cervical cancer), A549 cells (lung cancer) cells, by MTT assay. Compound 12 (IC50 = 4.14 µM) and compound 10c (IC50 = 5.98 µM) were found to be 2.5 fold, and 1.74 fold more potent when compared with standard Etoposide (IC50 = 10.44 µM), against A549 (lung cancer cells). Compound 12 also found to be 1.57 and 1.13 fold potent against DU145 (IC50 = 6.24 µM) and HeLa (IC50 = 6.54 µM), respectively when compared with Etoposide (DU145, IC50 = 9.8 µM; HeLa, IC50 = 7.43 µM). Compound 10f (IC50 = 6.12 µM) was found to be 1.31 fold more potent than Etoposide (IC50 = 7.43 µM) against HeLa cell lines. Moreover compounds 10a and 11a showed cytotoxicity at low micro-molar concentrations against A549 cells. Synthesized compounds were also evaluated for their antimicrobial activity by Cup plate diffusion method. Compounds 10c, 11b, 11d and 11f displayed remarkable antimicrobial activity relating to their standard drugs Gentamycin, Amphotericin B and Ampicillin. Significantly, compound 10c showed broad spectrum activity against tested microbial strains. All the designed compounds were well occupied the binding site of the colchicine and interacted with both α- and β-tubuline interface (PDB ID: 3E22), which demonstrates that synthesized compounds are promising tubulin inhibitors. Also, the synthesized compounds occupied the catalytic triad and adenine-binding site, in the active site of β-ketoacyl-acyl carrier protein synthase III enzyme (PDB ID: 1MZS). The molecular docking results provided the useful information for the future design of more potent inhibitors. These preliminary results convinced further investigation and modifications on synthesized compounds aiming towards the development of potential cytotoxic as well as antimicrobial agents.
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Berger ML, Maciejewska D, Vanden Eynde JJ, Mottamal M, Żabiński J, Kaźmierczak P, Rezler M, Jarak I, Piantanida I, Karminski-Zamola G, Mayence A, Rebernik P, Kumar A, Ismail MA, Boykin DW, Huang TL. Pentamidine analogs as inhibitors of [(3)H]MK-801 and [(3)H]ifenprodil binding to rat brain NMDA receptors. Bioorg Med Chem 2015; 23:4489-4500. [PMID: 26117647 DOI: 10.1016/j.bmc.2015.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 06/05/2015] [Accepted: 06/05/2015] [Indexed: 12/29/2022]
Abstract
The anti-protozoal drug pentamidine is active against opportunistic Pneumocystis pneumonia, but in addition has several other biological targets, including the NMDA receptor (NR). Here we describe the inhibitory potencies of 76 pentamidine analogs at 2 binding sites of the NR, the channel binding site labeled with [(3)H]MK-801 and the [(3)H]ifenprodil binding site. Most analogs acted weaker at the ifenprodil than at the channel site. The spermine-sensitivity of NR inhibition by the majority of the compounds was reminiscent of other long-chain dicationic NR blockers. The potency of the parent compound as NR blocker was increased by modifying the heteroatoms in the bridge connecting the 2 benzamidine moieties and also by integrating the bridge into a seven-membered ring. Docking of the 45 most spermine-sensitive bisbenzamidines to a recently described acidic interface between the N-terminal domains of GluN1 and GluN2B mediating polyamine stimulation of the NR revealed the domain contributed by GluN1 as the most relevant target.
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Affiliation(s)
- Michael L Berger
- Center for Brain Research, Medical University of Vienna, Vienna, Austria.
| | - Dorota Maciejewska
- Department of Organic Chemistry, Medical University of Warsaw, Warsaw, Poland
| | | | | | - Jerzy Żabiński
- Department of Organic Chemistry, Medical University of Warsaw, Warsaw, Poland
| | - Paweł Kaźmierczak
- Department of Organic Chemistry, Medical University of Warsaw, Warsaw, Poland
| | - Mateusz Rezler
- Department of Organic Chemistry, Medical University of Warsaw, Warsaw, Poland
| | - Ivana Jarak
- Department of Organic Chemistry, University of Zagreb, Zagreb, Croatia
| | - Ivo Piantanida
- Department of Organic Chemistry, University of Zagreb, Zagreb, Croatia
| | | | - Annie Mayence
- College of Pharmacy, Xavier University of Louisiana, New Orleans, USA
| | - Patrick Rebernik
- Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Arvind Kumar
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
| | - Mohamed A Ismail
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
| | - David W Boykin
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
| | - Tien L Huang
- College of Pharmacy, Xavier University of Louisiana, New Orleans, USA
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6
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Active site mapping of trypsin, thrombin and matriptase-2 by sulfamoyl benzamidines. Bioorg Med Chem 2012; 20:6489-505. [DOI: 10.1016/j.bmc.2012.08.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 08/16/2012] [Indexed: 12/16/2022]
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7
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Husson J, Knorr M. 2,2′:6′,2″-Terpyridines Functionalized with Thienyl Substituents: Synthesis and Applications. J Heterocycl Chem 2012. [DOI: 10.1002/jhet.813] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jérôme Husson
- Institut UTINAM UMR CNRS 6213; Université de Franche-Comté, Faculté des Sciences et des Techniques; 16 Route de Gray 25030 Besançon France
| | - Michael Knorr
- Institut UTINAM UMR CNRS 6213; Université de Franche-Comté, Faculté des Sciences et des Techniques; 16 Route de Gray 25030 Besançon France
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Huang TL, Vanden Eynde JJ, Mayence A, Collins MS, Cushion MT, Rattendi D, Londono I, Mazumder L, Bacchi CJ, Yarlett N. Synthesis and SAR of alkanediamide-linked bisbenzamidines with anti-trypanosomal and anti-pneumocystis activity. Bioorg Med Chem Lett 2009; 19:5884-6. [PMID: 19736009 DOI: 10.1016/j.bmcl.2009.08.073] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Revised: 08/18/2009] [Accepted: 08/20/2009] [Indexed: 11/30/2022]
Abstract
A series of alkanediamide-linked bisbenzamidines was synthesized and tested in vitro against a drug-sensitive strain of Trypanosoma brucei brucei, a drug-resistant strain of Trypanosoma brucei rhodesiense and Pneumocystiscarinii. Bisbenzamidines linked with longer alkanediamide chains were potent inhibitors of both strains of T. brucei. However, bisbenzamidines linked with shorter alkanediamide chains were the most potent compounds against P. carinii. N,N'-Bis[4-(aminoiminomethyl)phenyl] hexanediamide, 4 displayed potent inhibition (IC50=2-3 nM) against T. brucei and P. carinii, and was non-cytotoxic in the A549 human lung carcinoma cell line. The inhibitory bioactivity was significantly reduced when the amidine groups in 4 were moved from the para to the meta positions or replaced with amides.
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Affiliation(s)
- Tien L Huang
- Xavier University of Louisiana, College of Pharmacy, 1 Drexel Drive, New Orleans, LA 70125, USA.
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Huang TL, Vanden Eynde JJ, Mayence A, Donkor IO, Khan SI, Tekwani BL. Anti-plasmodial and anti-leishmanial activity of conformationally restricted pentamidine congeners. J Pharm Pharmacol 2006; 58:1033-42. [PMID: 16872549 DOI: 10.1211/jpp.58.8.0003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
A library of 52 pentamidine congeners in which the flexible pentyldioxy linker in pentamidine was replaced with various restricted linkers was tested for in-vitro activity against two Plasmodium falciparum strains and Leishmania donovani. The tested compounds were generally more effective against P. falciparum than L. donovani. The most active compounds against the chloroquine-sensitive (D6, Sierra Leone) and -resistant (W2, Indochina) strains of P. falciparum were bisbenzamidines linked with a 1,4-piperazinediyl or 1, 4-homopiperazinediyl moiety, with IC50 values (50% inhibitory concentration, inhibiting parasite growth by 50% in relation to drug-free control) as low as 7 nM based on the parasite lactate dehydrogenase assay. Seven piperazine-linked bisbenzamidines substituted at the amidinium nitrogens with a linear alkyl group of 3-6 carbons (22, 25, 27, 31) or cycloalkyl group of 4, 6 or 7 carbons (26, 32, 34) were more potent (IC50<40 nM) than chloroquine or pentamidine as anti-plasmodial agents. The most active anti-leishmanial agents were 4,4'-[1,4-phenylenebis(methyleneoxy)]bisbenzenecarboximidamide (2, IC50 approximately 0.290 microM) and 1,4-bis[4-(1H-benzimidazol-2-yl)phenyl] piperazine (44, IC50 approximately 0.410 microM), which were 10- and 7-fold more potent than pentamidine (IC50 approximately 2.90 microM). Several of the more active anti-plasmodial agents (e.g. 2, 31, 33, 36-38) were also potent anti-leishmanial agents, indicating broad antiprotozoal properties. However, a number of analogues that showed potent anti-plasmodial activity (1, 18, 21, 22, 25-28, 32, 43, 45) were not significantly active against the Leishmania parasite. This indicates differential modes of anti-plasmodial and anti-leishmanial actions for this class of compounds. These compounds provide important structure-activity relationship data for the design of improved chemotherapeutic agents against parasitic infections.
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Affiliation(s)
- Tien L Huang
- Division of Basic Pharmaceutical Sciences, College of Pharmacy, Xavier University of Louisiana, New Orleans, 70125, USA.
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10
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Soeiro MNC, De Souza EM, Stephens CE, Boykin DW. Aromatic diamidines as antiparasitic agents. Expert Opin Investig Drugs 2006; 14:957-72. [PMID: 16050790 DOI: 10.1517/13543784.14.8.957] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Parasitic infections are widespread in developing countries and frequently associated with immunocompromised patients in developed countries. Consequently, such infections are responsible for a significant amount of human mortality, morbidity and economic hardship. A growing consensus has identified the urgent need for the development of new antiparasitic compounds, mostly due to the large number of drug-resistant parasites and the fact that currently available drugs are expensive, highly toxic, require long treatment regimens and frequently exhibit significantly reduced activity towards certain parasite strains and evolutive stages. In this context, the activity of aromatic diamidines has been explored against a widespread range of micro-organisms, and the authors' present aim is to review the current status of chemotherapy with these compounds against human parasitic infections.
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Affiliation(s)
- M N C Soeiro
- Lab. Biologia Celular, DUBC, Instituto Oswaldo Cruz, FIOCRUZ, Avenida Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, RJ, Brazil.
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11
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Mayence A, Vanden Eynde JJ, Huang TL. Evidences for the formation of bisbenzamidine-heme complexes in cell-free systems. Bioorg Med Chem Lett 2004; 14:1625-8. [PMID: 15026037 DOI: 10.1016/j.bmcl.2004.01.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2003] [Revised: 01/22/2004] [Accepted: 01/23/2004] [Indexed: 11/16/2022]
Abstract
Infrared and colorimetry data suggest that bisbenzamidines connected by various rigid or flexible linkers are able to interact with heme in cell-free systems. At pH 5.0 the inhibition of formation of beta-hematin could be ascertained by infrared spectroscopy whereas at pH 7.0 the interaction yielded insoluble complexes for which a sandwich-type structure of stoichiometry 2:1, heme-drug, is tentatively proposed.
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Affiliation(s)
- Annie Mayence
- Xavier University of Louisiana, College of Pharmacy, Division of Basic Pharmaceutical Sciences, 1 Drexel Drive, New Orleans, LA 70125, USA
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12
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İbiş C, Yilmaz N, Ataseven HÖ. DIBUTADIENYL PIPERAZINE, DIBUTADIENYL HOMOPIPERAZINES AND BUTADIENYL-SUBSTITUTED PIPERIDINES FROM MONOSUBSTITUTED HALODIENES. PHOSPHORUS SULFUR 2004. [DOI: 10.1080/10426500490466850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Vanden Eynde JJ, Mayence A, Huang TL, Collins MS, Rebholz S, Walzer PD, Cushion MT. Novel bisbenzamidines as potential drug candidates for the treatment of Pneumocystis carinii pneumonia. Bioorg Med Chem Lett 2004; 14:4545-8. [PMID: 15357989 DOI: 10.1016/j.bmcl.2004.06.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2004] [Revised: 06/10/2004] [Accepted: 06/10/2004] [Indexed: 10/26/2022]
Abstract
A series of pentamidine congeners has been synthesized and screened for their in vitro activity against Pneumocystis carinii. Among the tested compounds, bisbenzamidines linked by a flexible pentanediamide or hexanediamide chain (7 and 9) emerged as exceptionally potent agents that were more effective and less toxic than pentamidine in the assays described in this study.
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Affiliation(s)
- Jean Jacques Vanden Eynde
- Xavier University of Louisiana, College of Pharmacy, Division of Basic Pharmaceutical Sciences, 1 Drexel Drive, New Orleans 70125, USA
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Mayence A, Vanden Eynde JJ, Krogstad FM, Krogstad DJ, Cushion MT, Huang TL. Parallel Solution-Phase Synthesis of Conformationally Restricted Congeners of Pentamidine and Evaluation of Their Antiplasmodial Activities. J Med Chem 2004; 47:2700-5. [PMID: 15115412 DOI: 10.1021/jm030545e] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Conformationally restricted bisbenzamidines and related congeners have been synthesized and evaluated for activity against two Plasmodium falciparum strains. The most active compounds, bisbenzamidines linked by a 1,4-piperazinediyl core, had IC(50) values between 3 and 18 nM against both chloroquine-susceptible and -resistant parasites and IC(50) values for cytotoxicity greater than 5 microM, using the A549 human lung epithelial cell line. DNA binding affinity, as estimated by DeltaT(m), did not correlate with either antiparasite effects or cytotoxicity. Each of the active bisbenzamidines interfered with the formation of hemozoin in cell-free systems.
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Affiliation(s)
- Annie Mayence
- College of Pharmacy, Division of Basic Pharmaceutical Sciences, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, Louisiana 70125, USA
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