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Romero AH, Aguilera E, Gotopo L, Cabrera G, Dávila B, Cerecetto H. Optimization of the 2-arylquinazoline-4(3 H)one scaffold for a selective and potent antitrypanosomal agent: modulation of the mechanism of action through chemical functionalization. RSC Med Chem 2023; 14:1992-2006. [PMID: 37859724 PMCID: PMC10583831 DOI: 10.1039/d3md00243h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/07/2023] [Indexed: 10/21/2023] Open
Abstract
We sought to identify a potent and selective antitrypanosomal agent through modulation of the mechanism of action of a 2-arylquinazoline scaffold as an antitrypanosomal agent via chemical functionalization at the 4-position. We wished to use the: (i) susceptibility of trypanosomatids towards nitric oxide (NO) and reactive oxygen species (ROS); (ii) capacity of the 4-substituted quinazoline system to act as an antifolate agent. Three quinazolin-based moieties that differed from each other by having at the 4-position key pharmacophores targeting the induction of NO and ROS production were evaluated in vitro against Leishmania infantum and Trypanosoma cruzi parasites and their modes of action were explored. Replacement of an oxygen moiety at the 4-position of the antifolate 2-arylquinazolin-4(3H)one by hydrazinyl and 5-nitrofuryl-hydrazinyl pharmacophores enhanced antitrypanosomatid activity significantly due to promotion of an additional mechanism beyond the antifolate response such as NO or ROS production, respectively. Among the three types of chemical functionalization, the 5-nitrofuryl-hydrazinyl moiety generated the most potent compounds. Compound 3b was a potential candidate thanks to its sub-micromolar response against the promastigotes/amastigotes of L. infantum and epimastigote of T. cruzi, moderate toxicity on macrophages (J774.1), good selectivity index (∼15.1-17.6) and, importantly, non-mutagenic effects. 2-Arylquinazoline could be an attractive platform to design new anti-trypanosomatid agents with the use of key pharmacophores.
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Affiliation(s)
- Angel H Romero
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la Republica Igual 4225 11400 Montevideo Uruguay
| | - Elena Aguilera
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la Republica Igual 4225 11400 Montevideo Uruguay
| | - Lourdes Gotopo
- Laboratorio de Síntesis de Orgánica, Facultad de Ciencias, Universidad Central de Venezuela Los Chaguaramos Caracas 1041-A Venezuela
| | - Gustavo Cabrera
- Laboratorio de Síntesis de Orgánica, Facultad de Ciencias, Universidad Central de Venezuela Los Chaguaramos Caracas 1041-A Venezuela
| | - Belén Dávila
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la Republica Igual 4225 11400 Montevideo Uruguay
| | - Hugo Cerecetto
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la Republica Igual 4225 11400 Montevideo Uruguay
- Área de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la Republica Mataojo 42055 11400 Montevideo Uruguay
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Pathak S, Bhardwaj M, Agrawal N, Bhardwaj A. A comprehensive review on potential candidates for the treatment of chagas disease. Chem Biol Drug Des 2023; 102:587-605. [PMID: 37070386 DOI: 10.1111/cbdd.14257] [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: 11/07/2022] [Revised: 02/25/2023] [Accepted: 04/06/2023] [Indexed: 04/19/2023]
Abstract
Twenty different infectious disorders induced by bacteria, viruses, and parasites are categorized as neglected tropical diseases (NTDs) by WHO. The severity of chagas disease remains a major concern in endemic areas and an emerging public health hazard in nonendemic countries. Trypanosoma cruzi, the etiological agent of this NTD, is mostly transmitted by triatomine vectors and comprises a range of epidemiologically significant variants. Current chemotherapeutics are obsolete, and one of the primary reasons for treatment cessation is their poor safety and effectiveness. Due to the aforementioned challenges, researchers are now focusing on discovering alternative novel safe, and economically reachable therapies for the treatment of trypanosomiasis. Certain target-based drugs that target specific biochemical processes of the causative parasites have been described as potential antichagasic agents that possesses various types of heterocyclic scaffolds. These flexible molecules have a wide range of biological actions, and various synthesized compounds with strong activity have been documented. This review aims to discuss the available literature on synthetic anti-T. cruzi drugs that will give a food for thought to medicinal chemists thriving to design and develop such drugs. Furthermore, some of the studies discussed herein are concerned with the potential of novel drugs to block new viable sites in T. cruzi.
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Affiliation(s)
- Shilpi Pathak
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Muskan Bhardwaj
- Hospital Administration, FCAM, SGT University, Gurugram, India
| | - Neetu Agrawal
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Aditya Bhardwaj
- Department of Healthcare Management, Chitkara Business School, Chitkara University, Punjab, India
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3
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Cruz Filho IJDA, Oliveira JFDE, Santos ACS, Pereira VRA, Lima MCADE. Synthesis of 4-(4-chlorophenyl)thiazole compounds: in silico and in vitro evaluations as leishmanicidal and trypanocidal agents. AN ACAD BRAS CIENC 2023; 95:e20220538. [PMID: 37132749 DOI: 10.1590/0001-3765202320220538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 02/23/2023] [Indexed: 05/04/2023] Open
Abstract
Neglected tropical diseases are a diverse group of communicable pathologies that mainly prevail in tropical and subtropical regions. Thus, the objective of this work was to evaluate the biological potential of eight 4-(4-chlorophenyl)thiazole compounds. Tests were carried out in silico to evaluate the pharmacokinetic properties, the antioxidant, cytotoxic activities in animal cells and antiparasitic activities were evaluated against the different forms of Leishmania amazonensis and Trypanosoma cruzi in vitro. The in silico study showed that the evaluated compounds showed good oral availability. In a preliminary in vitro study, the compounds showed moderate to low antioxidant activity. Cytotoxicity assays show that the compounds showed moderate to low toxicity. In relation to leishmanicidal activity, the compounds presented IC50 values that ranged from 19.86 to 200 µM for the promastigote form, while for the amastigote forms, IC50 ranged from 101 to more than 200 µM. The compounds showed better results against the forms of T. cruzi with IC50 ranging from 1.67 to 100 µM for the trypomastigote form and 1.96 to values greater than 200 µM for the amastigote form. This study showed that thiazole compounds can be used as future antiparasitic agents.
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Affiliation(s)
- Iranildo José DA Cruz Filho
- Federal University of Pernambuco (UFPE), Department of Antibiotics, Av. Prof. Moraes Rego, 1235, Cidade Universitária, 50670-901 Recife, PE, Brazil
| | - Jamerson F DE Oliveira
- University of International Integration of Afro-Brazilian Lusophony (UNILAB), Av. da Abolição, 3, Centro 62790-970 Redenção, CE, Brazil
| | - Aline Caroline S Santos
- Oswaldo Cruz Pernambuco Foundation (Fiocruz/PE), Department of Immunology, Av. Prof. Moraes Rego, 1235, Cidade Universitária 50670-901 Recife, PE, Brazil
| | - Valéria R A Pereira
- Oswaldo Cruz Pernambuco Foundation (Fiocruz/PE), Department of Immunology, Av. Prof. Moraes Rego, 1235, Cidade Universitária 50670-901 Recife, PE, Brazil
| | - Maria Carmo A DE Lima
- Federal University of Pernambuco (UFPE), Department of Antibiotics, Av. Prof. Moraes Rego, 1235, Cidade Universitária, 50670-901 Recife, PE, Brazil
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4
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Romero AH, Aguilera E, Gotopo L, Charris J, Rodríguez N, Oviedo H, Dávila B, Cabrera G, Cerecetto H. Synthesis and Antitrypanosomal and Mechanistic Studies of a Series of 2-Arylquinazolin-4-hydrazines: A Hydrazine Moiety as a Selective, Safe, and Specific Pharmacophore to Design Antitrypanosomal Agents Targeting NO Release. ACS OMEGA 2022; 7:47225-47238. [PMID: 36570252 PMCID: PMC9773939 DOI: 10.1021/acsomega.2c06455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Nitric oxide (NO) represents a valuable target to design antitrypanosomal agents by its high toxicity against trypanosomatids and minimal side effects on host macrophages. The progress of NO-donors as antitrypanosomal has been restricted by the high toxicity of their agents, which usually is based on NO-heterocycles and metallic NO-complexes. Herein, we carried out the design of a new class of NO-donors based on the susceptibility of the hydrazine moiety connected to an electron-deficient ring to be reduced to the amine moiety with release of NO. Then, a series of novel 2-arylquinazolin-4-hydrazine, with the potential ability to disrupt the parasite folate metabolism, were synthesized. Their in vitro evaluation against Leishmania and Trypanosoma cruzi parasites and mechanistic aspects were investigated. The compounds displayed significant leishmanicidal activity, identifying three potential candidates, that is, 3b, 3c, and 3f, for further assays by their good antiamastigote activities against Leishmania braziliensis, low toxicity, non-mutagenicity, and good ADME profile. Against T. cruzi parasites, derivatives 3b, 3c, and 3e displayed interesting levels of activities and selectivities. Mechanistic studies revealed that the 2-arylquinazolin-4-hydrazines act as either antifolate or NO-donor agents. NMR, fluorescence, and theoretical studies supported the fact that the quinazolin-hydrazine decomposed easily in an oxidative environment via cleavage of the N-N bond to release the corresponding heterocyclic-amine and NO. Generation of NO from axenic parasites was confirmed by the Griess test. All the evidence showed the potential of hydrazine connected to the electron-deficient ring to design effective and safe NO-donors against trypanosomatids.
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Affiliation(s)
- Angel H. Romero
- Grupo
de Química Orgánica Medicinal, Instituto de Química
Biológica, Facultad de Ciencias, Universidad de la Republica, Iguá 4225, Montevideo 11400, Uruguay
- Laboratorio
de Ingeniería Genética, Instituto de Biomedicina, Facultad
de Medicina, Universidad Central de Venezuela, San Luis, Caracas 1073, Venezuela
| | - Elena Aguilera
- Grupo
de Química Orgánica Medicinal, Instituto de Química
Biológica, Facultad de Ciencias, Universidad de la Republica, Iguá 4225, Montevideo 11400, Uruguay
| | - Lourdes Gotopo
- Laboratorio
de Síntesis de Orgánica, Facultad de Ciencias, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1041-A, Venezuela
| | - Jaime Charris
- Laboratorio
de Síntesis de Medicamentos, Facultad de Farmacia, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1041-A, Venezuela
| | - Noris Rodríguez
- Laboratorio
de Ingeniería Genética, Instituto de Biomedicina, Facultad
de Medicina, Universidad Central de Venezuela, San Luis, Caracas 1073, Venezuela
| | - Henry Oviedo
- Laboratorio
de Ingeniería Genética, Instituto de Biomedicina, Facultad
de Medicina, Universidad Central de Venezuela, San Luis, Caracas 1073, Venezuela
| | - Belén Dávila
- Grupo
de Química Orgánica Medicinal, Instituto de Química
Biológica, Facultad de Ciencias, Universidad de la Republica, Iguá 4225, Montevideo 11400, Uruguay
| | - Gustavo Cabrera
- Laboratorio
de Síntesis de Orgánica, Facultad de Ciencias, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1041-A, Venezuela
| | - Hugo Cerecetto
- Grupo
de Química Orgánica Medicinal, Instituto de Química
Biológica, Facultad de Ciencias, Universidad de la Republica, Iguá 4225, Montevideo 11400, Uruguay
- Área
de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de
Ciencias, Universidad de la Republica, Mataojo 2055, Montevideo 11400, Uruguay
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Vázquez-Jiménez LK, Juárez-Saldivar A, Gómez-Escobedo R, Delgado-Maldonado T, Méndez-Álvarez D, Palos I, Bandyopadhyay D, Gaona-Lopez C, Ortiz-Pérez E, Nogueda-Torres B, Ramírez-Moreno E, Rivera G. Ligand-Based Virtual Screening and Molecular Docking of Benzimidazoles as Potential Inhibitors of Triosephosphate Isomerase Identified New Trypanocidal Agents. Int J Mol Sci 2022; 23:ijms231710047. [PMID: 36077439 PMCID: PMC9456061 DOI: 10.3390/ijms231710047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 11/30/2022] Open
Abstract
Trypanosoma cruzi (T. cruzi) is a parasite that affects humans and other mammals. T. cruzi depends on glycolysis as a source of adenosine triphosphate (ATP) supply, and triosephosphate isomerase (TIM) plays a key role in this metabolic pathway. This enzyme is an attractive target for the design of new trypanocidal drugs. In this study, a ligand-based virtual screening (LBVS) from the ZINC15 database using benzimidazole as a scaffold was accomplished. Later, a molecular docking on the interface of T. cruzi TIM (TcTIM) was performed and the compounds were grouped by interaction profiles. Subsequently, a selection of compounds was made based on cost and availability for in vitro evaluation against blood trypomastigotes. Finally, the compounds were analyzed by molecular dynamics simulation, and physicochemical and pharmacokinetic properties were determined using SwissADME software. A total of 1604 molecules were obtained as potential TcTIM inhibitors. BP2 and BP5 showed trypanocidal activity with half-maximal lytic concentration (LC50) values of 155.86 and 226.30 µM, respectively. Molecular docking and molecular dynamics simulation analyzes showed a favorable docking score of BP5 compound on TcTIM. Additionally, BP5 showed a low docking score (−5.9 Kcal/mol) on human TIM compared to the control ligand (−7.2 Kcal/mol). Both compounds BP2 and BP5 showed good physicochemical and pharmacokinetic properties as new anti-T. cruzi agents.
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Affiliation(s)
- Lenci K Vázquez-Jiménez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Alfredo Juárez-Saldivar
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Rogelio Gómez-Escobedo
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Timoteo Delgado-Maldonado
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Domingo Méndez-Álvarez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Isidro Palos
- Unidad Académica Multidisciplinaria Reynosa-Rodhe, Universidad Autónoma de Tamaulipas, Reynosa 88779, Mexico
| | - Debasish Bandyopadhyay
- Department of Chemistry and SEEMS, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Carlos Gaona-Lopez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Eyra Ortiz-Pérez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Benjamín Nogueda-Torres
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Esther Ramírez-Moreno
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Ciudad de México 07320, Mexico
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
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Identification of 2-(4-N,N-Dimethylaminophenyl)-5-methyl-1-phenethyl-1H-benzimidazole targeting HIV-1 CA capsid protein and inhibiting HIV-1 replication in cellulo. BMC Pharmacol Toxicol 2022; 23:43. [PMID: 35765101 PMCID: PMC9241302 DOI: 10.1186/s40360-022-00581-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 05/30/2022] [Indexed: 11/29/2022] Open
Abstract
The capsid (CA) subunit of the HIV-1 Gag polyprotein is involved in several steps of the viral cycle, from the assembly of new viral particles to the protection of the viral genome until it enters into the nucleus of newly infected cells. As such, it represents an interesting therapeutic target to tackle HIV infection. In this study, we screened hundreds of compounds with a low cost of synthesis for their ability to interfere with Gag assembly in vitro. Representatives of the most promising families of compounds were then tested for their ability to inhibit HIV-1 replication in cellulo. From these molecules, a hit compound from the benzimidazole family with high metabolic stability and low toxicity, 2-(4-N,N-dimethylaminophenyl)-5-methyl-1-phenethyl-1H-benzimidazole (696), appeared to block HIV-1 replication with an IC50 of 3 µM. Quantitative PCR experiments demonstrated that 696 does not block HIV-1 infection before the end of reverse transcription, and molecular docking confirmed that 696 is likely to bind at the interface between two monomers of CA and interfere with capsid oligomerization. Altogether, 696 represents a promising lead molecule for the development of a new series of HIV-1 inhibitors.
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Rubio-Hernández M, Alcolea V, Pérez-Silanes S. Potential of sulfur-selenium isosteric replacement as a strategy for the development of new anti-chagasic drugs. Acta Trop 2022; 233:106547. [PMID: 35667455 DOI: 10.1016/j.actatropica.2022.106547] [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: 04/11/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022]
Abstract
Current treatment for Chagas disease is based on only two drugs: benznidazole and nifurtimox. Compounds containing sulfur (S) in their structure have shown promising results in vitro and in vivo against Trypanosoma cruzi, the parasite causing Chagas disease. Notably, some reports show that the isosteric replacement of S by selenium (Se) could be an interesting strategy for the development of new compounds for the treatment of Chagas disease. To date, the activity against T. cruzi of three Se- containing groups has been compared with their S counterparts: selenosemicarbazones, selenoquinones, and selenocyanates. More studies are needed to confirm the positive results of Se compounds. Therefore, we have investigated S compounds described in the literature tested against T. cruzi. We focused on those tested in vivo that allowed isosteric replacement to propose their Se counterparts as promising compounds for the future development of new drugs against Chagas disease.
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Benítez-Cardoza CG, Brieba LG, Arroyo R, Rojo-Domínguez A, Vique-Sánchez JL. Synergistic effect of compounds directed to triosephosphate isomerase, a combination to develop drug against trichomoniasis. Arch Pharm (Weinheim) 2022; 355:e2200046. [PMID: 35332589 DOI: 10.1002/ardp.202200046] [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: 01/27/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 11/06/2022]
Abstract
The development of new drugs is continuous in the world; currently, saving resources (both economic ones and time) and preventing secondary effects have become a necessity for drug developers. Trichomoniasis is the most common nonviral sexually transmitted infection affecting more than 270 million people around the world. In our research group, we focussed on developing a selective and more effective drug against Trichomonas vaginalis, and we previously reported on a compound, called A4, which had a trichomonacidal effect. Later, we determined another compound, called D4, which also had a trichomonacidal effect together with favorable toxicity results. Both A4 and D4 are directed at the enzyme triosephosphate isomerase. Thus, we made combinations between the two compounds, in which we determined a synergistic effect against T. vaginalis, determining the IC50 and the toxicity of the best relationship to obtain the trichomonacidal effect. With these results, we can propose a combination of compounds that represents a promising alternative for the development of a new therapeutic strategy against trichomoniasis.
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Affiliation(s)
- Claudia G Benítez-Cardoza
- Laboratorio de Investigación Bioquímica, ENMyH-Instituto Politécnico Nacional, Ciudad de México, México
| | - Luis G Brieba
- Laboratorio Nacional de Genómica para la Biodiversidad, Centro de Investigación y de Estudios Avanzados del IPN, Guanajuato, México
| | - Rossana Arroyo
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Arturo Rojo-Domínguez
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Cuajimalpa, Ciudad de México, México
| | - José L Vique-Sánchez
- Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali, Baja California, México
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Examination of multiple Trypanosoma cruzi targets in a new drug discovery approach for Chagas disease. Bioorg Med Chem 2022; 58:116577. [DOI: 10.1016/j.bmc.2021.116577] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/10/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022]
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Vázquez-Jiménez LK, Moreno-Herrera A, Juárez-Saldivar A, González-González A, Ortiz-Pérez E, Paz-González AD, Palos-Pizarro I, Ramírez-Moreno E, Rivera G. Recent Advances in the Development of Triose Phosphate Isomerase Inhibitors as Antiprotozoal Agents. Curr Med Chem 2021; 29:2504-2529. [PMID: 34517794 DOI: 10.2174/0929867328666210913090928] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/10/2021] [Accepted: 07/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Parasitic diseases caused by protozoa such as Chagas disease, leishmaniasis, malaria, African trypanosomiasis, amebiasis, trichomoniasis, and giardiasis are considered serious public health problems in developing countries. Drug-resistance among parasites justifies the search for new therapeutic drugs and the identification of new targets becomes a valuable approach. In this scenario, glycolysis pathway which consists of the conversion of glucose into pyruvate plays an important role in the protozoa energy supply and it is therefore considered as a promising target. In this pathway, triose phosphate isomerase (TIM) plays an essential role in efficient energy production. Furthermore, protozoa TIM show structural differences with human enzyme counterparts suggesting the possibility of obtaining selective inhibitors. Therefore, TIM is considered a valid approach to develop new antiprotozoal agents, inhibiting the glycolysis in the parasite. OBJECTIVE In this review, we discuss the drug design strategies, structure-activity relationship, and binding modes of outstanding TIM inhibitors against Trypanosoma cruzi, Trypanosoma brucei, Plasmodium falciparum, Giardia lamblia, Leishmania mexicana, Trichomonas vaginalis, and Entamoeba histolytica. RESULTS TIM inhibitors showed mainly aromatic systems and symmetrical structure, where the size and type of heteroatom are important for enzyme inhibition. This inhibition is mainly based on the interaction with i) the interfacial region of TIM inducing changes on the quaternary and tertiary structure or ii) with the TIM catalytic region were the main pathways that disabled the catalytic activity of the enzyme. CONCLUSION Benzothiazole, benzoxazole, benzimidazole, and sulfhydryl derivatives stand out as TIM inhibitors. In silico and in vitro studies demonstrate that the inhibitors bind mainly at the TIM dimer interface. In this review, the development of new TIM inhibitors as antiprotozoal drugs is demonstrated as an important pharmaceutical strategy that may lead to new therapies for these ancient parasitic diseases.
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Affiliation(s)
- Lenci K Vázquez-Jiménez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Antonio Moreno-Herrera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Alfredo Juárez-Saldivar
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Alonzo González-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Eyra Ortiz-Pérez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Alma D Paz-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
| | - Isidro Palos-Pizarro
- Unidad Académica Multidisciplinaria Reynosa-Rodhe, Universidad Autónoma de Tamaulipas, 88779 Reynosa. Mexico
| | - Esther Ramírez-Moreno
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, 07320 Ciudad de México. Mexico
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa. Mexico
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11
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Martínez-Cerón S, Gutiérrez-Nágera NA, Mirzaeicheshmeh E, Cuevas-Hernández RI, Trujillo-Ferrara JG. Phenylbenzothiazole derivatives: effects against a Trypanosoma cruzi infection and toxicological profiles. Parasitol Res 2021; 120:2905-2918. [PMID: 34195872 DOI: 10.1007/s00436-021-07137-4] [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: 09/15/2020] [Accepted: 03/22/2021] [Indexed: 11/29/2022]
Abstract
Current treatments for Chagas disease have a limited impact during the chronic stage and trigger severe side effects. Treatments target Trypanosoma cruzi, the etiological agent of the disease. The aims of this study were to evaluate the trypanocidal activity of four 2-phenylbenzothiazole derivatives (BZT1-4) in vitro by using the infectious and non-infectious forms of T. cruzi (trypomastigotes and epimastigotes, respectively) and to test the most promising compound (BZT4) in vivo in mice. Additionally, the toxicological profile and possible neuronal damage were examined. In relation to trypomastigotes, BZT4 was more selective and effective than the reference drug (benznidazole) during this infective stage, apparently due to the synergistic action of the CF3 and COOH substituents in the molecule. During the first few hours post-administration of BZT4, parasitemia decreased by 40% in an in vivo model of short-term treatment, but parasite levels later returned to the basal state. In the long-term assessment, the compound did not produce a significant antiparasitic effect, only attaining a 30% reduction in parasitemia by day 20 with the dose of 16 mg/kg. The toxicity test was based on repeated dosing of BZT4 (administered orally) during 21 days, which did not cause liver damage. However, the compound altered the concentration of proteins and the proteinic profile of neuronal cells in vitro, perhaps leading to an effect on the central nervous system. Further research on the low trypanocidal activity in vivo compared to the better in vitro effect could possibly facilitate molecular redesign to improve trypanocidal activity.
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Affiliation(s)
- Sarai Martínez-Cerón
- Laboratory of Biochemistry Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón S/N, Casco de Santo Tomas, Miguel Hidalgo, 11340, Mexico City, Mexico
| | - Nora Andrea Gutiérrez-Nágera
- Instituto Nacional de Medicina Genómica - INMEGEN, Av. Periférico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico
| | - Elaheh Mirzaeicheshmeh
- Instituto Nacional de Medicina Genómica - INMEGEN, Av. Periférico Sur No. 4809, Col. Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico
| | - Roberto I Cuevas-Hernández
- Laboratory of Biochemistry Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón S/N, Casco de Santo Tomas, Miguel Hidalgo, 11340, Mexico City, Mexico.
| | - José G Trujillo-Ferrara
- Laboratory of Biochemistry Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón S/N, Casco de Santo Tomas, Miguel Hidalgo, 11340, Mexico City, Mexico.
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12
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Vique-Sánchez JL, Jiménez-Pineda A, Benítez-Cardoza CG. Amoebicidal effect of 5,5'-[(4-nitrophenyl)methylene]bis-6-hydroxy-2-mercapto-3-methyl-4(3H)-pyrimidinone), a new drug against Entamoeba histolytica. Arch Pharm (Weinheim) 2020; 354:e2000263. [PMID: 33017058 DOI: 10.1002/ardp.202000263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/10/2020] [Accepted: 09/16/2020] [Indexed: 02/06/2023]
Abstract
Entamoeba histolytica is a cosmopolitan protozoan parasite that can produce infections in the intestine and some organs (liver, lungs, and brain), with worldwide prevalence. There are treatments against E. histolytica (antiparasitics), but as the drugs used in these treatments have presented some type of resistance and/or side effects, there are cases with complications of this disease. Therefore, it is necessary to develop new drugs aimed at a specific therapeutic target against this parasite. Here, we used the compound 5,5'-[(4-nitrophenyl)methylene]bis(6-hydroxy-2-mercapto-3-methyl-4(3H)-pyrimidinone) in the patenting process (called D4). D4 has a reported specific use against a glycolytic enzyme, the triosephosphate isomerase of Trichomonas vaginalis (TvTIM). We determined that D4 has an amoebicidal effect in in vitro cultures, with an IC50 value of 18.5 µM, and we proposed a specific site of interaction (Lys77, His110, Gln115, and Glu118) in the triosephosphate isomerase of E. histolytica (EhTIM). Furthermore, compound D4 has favorable experimental and theoretical toxicity results. Therefore, D4 should be further investigated as a potential drug against E. histolytica.
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Affiliation(s)
- José L Vique-Sánchez
- Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali, Baja California, México
| | - Albertana Jiménez-Pineda
- Laboratorio de Investigación Bioquímica, ENMyH-Instituto Politécnico Nacional, Ciudad de México, México
| | - Claudia G Benítez-Cardoza
- Laboratorio de Investigación Bioquímica, ENMyH-Instituto Politécnico Nacional, Ciudad de México, México
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13
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Latif NAA, Abbas EMH, Farghaly TA, Awad HM. Synthesis, Characterization, and Anticancer Screening of Some
New Bithiazole Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020060202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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14
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Raslan MA, Sayed SM. Synthesis of some new thiazolo[3,2‐
a
]pyridine,
bi‐thiazole‐thiazole
,
bi‐thiazole‐pyrazole
and
bi‐thiazole‐thiophene
derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- M. A. Raslan
- Chemistry Department, Faculty of ScienceAswan University Aswan Egypt
| | - S. M. Sayed
- Chemistry Department, Faculty of ScienceAswan University Aswan Egypt
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15
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Benítez-Cardoza CG, Fernández-Velasco DA, Vique-Sánchez JL. Triosephosphate Isomerase Inhibitors as Potential Drugs against Clostridium perfringens. ChemistrySelect 2020. [DOI: 10.1002/slct.201904632] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Daniel A. Fernández-Velasco
- Laboratorio de Fisicoquímica e Ingeniería de Proteínas; Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de; México México
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16
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Aguilera E, Perdomo C, Espindola A, Corvo I, Faral-Tello P, Robello C, Serna E, Benítez F, Riveros R, Torres S, Vera de Bilbao NI, Yaluff G, Alvarez G. A Nature-Inspired Design Yields a New Class of Steroids Against Trypanosomatids. Molecules 2019; 24:molecules24203800. [PMID: 31652542 PMCID: PMC6832524 DOI: 10.3390/molecules24203800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/08/2019] [Accepted: 10/12/2019] [Indexed: 12/24/2022] Open
Abstract
Chagas disease and Leishmaniasis are neglected endemic protozoan diseases recognized as public health problems by the World Health Organization. These diseases affect millions of people around the world however, efficient and low-cost treatments are not available. Different steroid molecules with antimicrobial and antiparasitic activity were isolated from diverse organisms (ticks, plants, fungi). These molecules have complex structures that make de novo synthesis extremely difficult. In this work, we designed new and simpler compounds with antiparasitic potential inspired in natural steroids and synthesized a series of nineteen steroidal arylideneketones and thiazolidenehydrazines. We explored their biological activity against Leishmania infantum, Leishmania amazonensis, and Trypanosoma cruzi in vitro and in vivo. We also assayed their genotoxicity and acute toxicity in vitro and in mice. The best compound, a steroidal thiosemicarbazone compound 8 (ID_1260) was active in vitro (IC50 200 nM) and in vivo (60% infection reduction at 50 mg/kg) in Leishmania and T. cruzi. It also has low toxicity in vitro and in vivo (LD50 >2000 mg/kg) and no genotoxic effects, being a promising compound for anti-trypanosomatid drug development.
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Affiliation(s)
- Elena Aguilera
- Grupo de Química Medicinal-Laboratorio de Química Orgánica, Facultad de Ciencias, Universidad de la República, Montevideo C.P. 11400, Uruguay.
| | - Cintya Perdomo
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú C.P. 60000, Uruguay.
| | - Alejandra Espindola
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú C.P. 60000, Uruguay.
| | - Ileana Corvo
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú C.P. 60000, Uruguay.
| | - Paula Faral-Tello
- Unidad de Biología Molecular, Institut Pasteur de Montevideo, Montevideo C.P. 11400, Uruguay.
| | - Carlos Robello
- Unidad de Biología Molecular, Institut Pasteur de Montevideo, Montevideo C.P. 11400, Uruguay.
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo 11200, Uruguay.
| | - Elva Serna
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Fátima Benítez
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Rocío Riveros
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Susana Torres
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Ninfa I Vera de Bilbao
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Gloria Yaluff
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo C.P. 2169., Paraguay.
| | - Guzmán Alvarez
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú C.P. 60000, Uruguay.
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17
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Cardoso MVDO, Oliveira Filho GBD, Siqueira LRPD, Espíndola JWP, Silva EBD, Mendes APDO, Pereira VRA, Castro MCABD, Ferreira RS, Villela FS, Costa FMRD, Meira CS, Moreira DRM, Soares MBP, Leite ACL. 2-(phenylthio)ethylidene derivatives as anti-Trypanosoma cruzi compounds: Structural design, synthesis and antiparasitic activity. Eur J Med Chem 2019; 180:191-203. [DOI: 10.1016/j.ejmech.2019.07.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/06/2019] [Indexed: 12/16/2022]
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18
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New Series of Thiazole Derivatives: Synthesis, Structural Elucidation, Antimicrobial Activity, Molecular Modeling and MOE Docking. Molecules 2019; 24:molecules24091741. [PMID: 31060260 PMCID: PMC6539608 DOI: 10.3390/molecules24091741] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/15/2022] Open
Abstract
Based on the extensive biological activities of thiazole derivatives against different types of diseases, we are interested in the effective part of many natural compounds, so we synthesized a new series of compounds containing di-, tri- and tetrathiazole moieties. The formation of such derivatives proceeded via reaction of 2-bromo-1-(4-methyl-2-(methylamino)thiazol-5-yl)ethan-1-one with heterocyclic amines, o-aminothiophenol and thiosemicarbazone derivatives. The structure and mechanistic pathways for all products were discussed and proved based on spectral results, in addition to conformational studies. Our aim after the synthesis is to investigate their antimicrobial activity against various types of bacteria and fungi species. Preceeding such an investigation, a molecular docking study was carried out with selected conformers, as representative examples, against three pathogen-proteins. This preliminary stage could support the biological application. The potency of these compounds as antimicrobial agents has been evaluated. The results showed that derivatives which have di- and trithiazole rings displayed high activity that exceeds the used standard antibiotic.
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19
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Risi G, Aguilera E, Ladós E, Suárez G, Carrera I, Álvarez G, Salinas G. Caenorhabditis elegans Infrared-Based Motility Assay Identified New Hits for Nematicide Drug Development. Vet Sci 2019; 6:vetsci6010029. [PMID: 30884899 PMCID: PMC6466232 DOI: 10.3390/vetsci6010029] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/05/2019] [Accepted: 03/11/2019] [Indexed: 12/17/2022] Open
Abstract
Nematode parasites have a profound impact on humankind, infecting nearly one-quarter of the world’s population, as well as livestock. There is a pressing need for discovering nematicides due to the spread of resistance to currently used drugs. The free-living nematode Caenorhabditis elegans is a formidable experimentally tractable model organism that offers key advantages in accelerating nematicide discovery. We report the screening of drug-like libraries using an overnight high-throughput C. elegans assay, based on an automated infrared motility reader. As a proof of concept, we screened the “Pathogen Box” library, and identical results to a previous screen using Haemonchus contortus were obtained. We then screened an in-house library containing a diversity of compound families. Most active compounds had a conjugation of an unsaturation with an electronegative atom (N, O, or S) and an aromatic ring. Importantly, we identified symmetric arylidene ketones and aryl hydrazine derivatives as novel nematicides. Furthermore, one of these compounds, (1E,2E)-1,2-bis(thiophen-3-ylmethylene)hydrazine, was active as a nematicide at 25 µm, but innocuous to the vertebrate model zebrafish at 50 µm. Our results identified novel nematicidal scaffolds and illustrate the value of C. elegans in accelerating nematicide discovery using a nonlabor-intensive automated assay that provides a simple overnight readout.
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Affiliation(s)
- Gastón Risi
- Worm Biology Laboratory, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
| | - Elena Aguilera
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
| | - Enrique Ladós
- Worm Biology Laboratory, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
| | - Gonzalo Suárez
- Área Farmacología, Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Montevideo 11600, Uruguay.
| | - Inés Carrera
- Worm Biology Laboratory, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
- Departamento de Ciencias Farmacéuticas, Área Farmacología, Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay.
| | - Guzmán Álvarez
- Laboratorio de Moléculas Bioactivas-CENUR Litoral Norte, Universidad de la República, Paysandú 60000, Uruguay.
| | - Gustavo Salinas
- Worm Biology Laboratory, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
- Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo 11400, Uruguay.
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20
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Novel and Selective Rhipicephalus microplus Triosephosphate Isomerase Inhibitors with Acaricidal Activity. Vet Sci 2018; 5:vetsci5030074. [PMID: 30142944 PMCID: PMC6163981 DOI: 10.3390/vetsci5030074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/14/2018] [Accepted: 08/20/2018] [Indexed: 12/14/2022] Open
Abstract
The cattle tick Rhipicephalus microplus is one of the most important ectoparasites causing significant economic losses for the cattle industry. The major tool of control is reducing the number of ticks, applying acaricides in cattle. However, overuse has led to selection of resistant populations of R. microplus to most of these products, some even to more than one active principle. Thus, exploration for new molecules with acaricidal activity in R. microplus has become necessary. Triosephosphate isomerase (TIM) is an essential enzyme in R. microplus metabolism and could be an interesting target for the development of new methods for tick control. In this work, we screened 227 compounds, from our in-house chemo-library, against TIM from R. microplus. Four compounds (50, 98, 14, and 161) selectively inhibited this enzyme with IC50 values between 25 and 50 μM. They were also able to diminish cellular viability of BME26 embryonic cells by more than 50% at 50 μM. A molecular docking study showed that the compounds bind in different regions of the protein; compound 14 interacts with the dimer interface. Furthermore, compound 14 affected the survival of partially engorged females, fed artificially, using the capillary technique. This molecule is simple, easy to produce, and important biological data—including toxicological information—are available for it. Our results imply a promising role for compound 14 as a prototype for development of a new acaricidal involving selective TIM inhibition.
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21
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Wu M, Yan M, Xu J, Yin X, Dong X, Wang N, Gu X, Xie Y, Lai W, Jing B, Peng X, Yang G. Molecular characterization of triosephosphate isomerase from Echinococcus granulosus. Parasitol Res 2018; 117:3169-3176. [PMID: 30027383 DOI: 10.1007/s00436-018-6015-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 07/12/2018] [Indexed: 11/26/2022]
Abstract
Cystic echinococcosis (CE) is a zoonosis that can be caused by the larvae of Echinococcus granulosus; this disease occurs worldwide and is highly endemic in China. E. granulosus can produce energy by glycolysis as well as both aerobic and anaerobic respirations. Triosephosphate isomerase is a glycolytic enzyme present in a wide range of organisms and plays an important role in glycolysis. However, there has been little research on triosephosphate isomerase from E. granulosus (Eg-TIM). Here, we present a bioinformatic characterization and the experimentally determined tissue distribution characteristics of Eg-TIM. We also explored its potential value for diagnosing CE in sheep using indirect enzyme-linked immunosorbent assay (ELISA). Native Eg-TIM was located in the neck and hooks of protoscoleces (PSCs), as well as the tegument and parenchyma tissue of adult worms. The entire germinal layer was also Eg-TIM positive. Western blots showed that recombinant Eg-TIM (rEg-TIM) reacts with positive serum from sheep and had good immunogenicity. Indirect ELISA exhibited low specificity (53.6%) and low sensitivity (87.5%) and cross-reacted with both Taenia multiceps and Taenia hydatigena. Our results suggest that TIM may take part in the growth and development of E. granulosus. Furthermore, we determined that rEg-TIM is not a suitable serodiagnostic antigen for CE in sheep.
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Affiliation(s)
- Maodi Wu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Min Yan
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jing Xu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaoxiao Yin
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaowei Dong
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ning Wang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yue Xie
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Weimin Lai
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Bo Jing
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xuerong Peng
- Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
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22
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Looking for Novel Capsid Protein Multimerization Inhibitors of Feline Immunodeficiency Virus. Pharmaceuticals (Basel) 2018; 11:ph11030067. [PMID: 29996481 PMCID: PMC6161179 DOI: 10.3390/ph11030067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 12/25/2022] Open
Abstract
Feline immunodeficiency virus (FIV) is a member of the retroviridae family of viruses. It causes acquired immunodeficiency syndrome (AIDS) in worldwide domestic and non-domestic cats and is a cause of an important veterinary issue. The genome organization of FIV and the clinical characteristics of the disease caused by FIV are similar to human immunodeficiency virus (HIV). Both viruses infect T lymphocytes, monocytes, and macrophages, with a similar replication cycle in infected cells. Thus, the infection of cats with FIV is also a useful tool for the study and development of novel drugs and vaccines against HIV. Anti-retroviral drugs studied extensively with regards to HIV infection have targeted different steps of the virus replication cycle: (1) disruption of the interaction with host cell surface receptors and co-receptors; (2) inhibition of fusion of the virus and cell membranes; (3) blocking of the reverse transcription of viral genomic RNA; (4) interruption of nuclear translocation and integration of viral DNA into host genomes; (5) prevention of viral transcript processing and nuclear export; and (6) inhibition of virion assembly and maturation. Despite the great success of anti-retroviral therapy in slowing HIV progression in humans, a similar therapy has not been thoroughly investigated for FIV infection in cats, mostly because of the little structural information available for FIV proteins. The FIV capsid protein (CA) drives the assembly of the viral particle, which is a critical step in the viral replication cycle. During this step, the CA protein oligomerizes to form a protective coat that surrounds the viral genome. In this work, we perform a large-scale screening of four hundred molecules from our in-house library using an in vitro assembly assay of p24, combined with microscale thermophoresis, to estimate binding affinity. This screening led to the discovery of around four novel hits that inhibited capsid assembly in vitro. These may provide new antiviral drugs against FIV.
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23
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Nalawade J, Mhaske PC, Shinde A, Patil SV, Choudhari PB, Bobade VD. Synthesis, Characterization, and Antimicrobial Screening of 4″-methyl-2,2″-diaryl-4,2′:4′,5″-terthiazole Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jitendra Nalawade
- Post-Graduate Department of Chemistry H. P. T. Arts and R. Y. K. Science College; Savitribai Phule Pune University; Nashik 422005 India
| | - Pravin C. Mhaske
- Post Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College; Savitribai Phule Pune University; Tilak Road Pune 411 030 India
| | - Abhijit Shinde
- Post Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College; Savitribai Phule Pune University; Tilak Road Pune 411 030 India
| | - Sachin V. Patil
- Post-Graduate Department of Chemistry H. P. T. Arts and R. Y. K. Science College; Savitribai Phule Pune University; Nashik 422005 India
| | - Prafulla B. Choudhari
- Computational Chemistry Research Lab, Department of Pharmaceutical Chemistry; Bharati Vidyapeeth College of Pharmacy; Near Chitranageri, Morewadi Kolhapur 416013 India
| | - Vivek D. Bobade
- Post-Graduate Department of Chemistry H. P. T. Arts and R. Y. K. Science College; Savitribai Phule Pune University; Nashik 422005 India
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Aguilera E, Varela J, Serna E, Torres S, Yaluff G, Bilbao NVD, Cerecetto H, Alvarez G, González M. Looking for combination of benznidazole and Trypanosoma cruzi-triosephosphate isomerase inhibitors for Chagas disease treatment. Mem Inst Oswaldo Cruz 2018; 113:153-160. [PMID: 29412353 PMCID: PMC5804306 DOI: 10.1590/0074-02760170267] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 10/25/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The current chemotherapy for Chagas disease is based on monopharmacology with low efficacy and drug tolerance. Polypharmacology is one of the strategies to overcome these limitations. OBJECTIVES Study the anti-Trypanosoma cruzi activity of associations of benznidazole (Bnz) with three new synthetic T. cruzi-triosephosphate isomerase inhibitors, 2, 3, and 4, in order to potentiate their actions. METHODS The in vitro effect of the drug combinations were determined constructing the corresponding isobolograms. In vivo activities were assessed using an acute murine model of Chagas disease evaluating parasitaemias, mortalities and IgG anti-T. cruzi antibodies. FINDINGS The effect of Bnz combined with each of these compounds, on the growth of epimastigotes, indicated an additive action or a synergic action, when combining it with 2 or 3, respectively, and an antagonic action when combining it with 4. In vivo studies, for the two chosen combinations, 2 or 3 plus one fifth equivalent of Bnz, showed that Bnz can also potentiate the in vivo therapeutic effects. For both combinations a decrease in the number of trypomastigote and lower levels of anti-T. cruzi IgG-antibodies were detected, as well clear protection against death. MAIN CONCLUSIONS These results suggest the studied combinations could be used in the treatment of Chagas disease.
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Affiliation(s)
- Elena Aguilera
- Universidad de la República, Facultad de Ciencias, Grupo de Química Medicinal, Montevideo, Uruguay
| | - Javier Varela
- Universidad de la República, Facultad de Ciencias, Grupo de Química Medicinal, Montevideo, Uruguay
| | - Elva Serna
- Universidad Nacional de Asunción, Instituto de Investigaciones en Ciencias de la Salud, Departamento de Medicina Tropical, Asunción, Paraguay
| | - Susana Torres
- Universidad Nacional de Asunción, Instituto de Investigaciones en Ciencias de la Salud, Departamento de Medicina Tropical, Asunción, Paraguay
| | - Gloria Yaluff
- Universidad Nacional de Asunción, Instituto de Investigaciones en Ciencias de la Salud, Departamento de Medicina Tropical, Asunción, Paraguay
| | - Ninfa Vera de Bilbao
- Universidad Nacional de Asunción, Instituto de Investigaciones en Ciencias de la Salud, Departamento de Medicina Tropical, Asunción, Paraguay
| | - Hugo Cerecetto
- Universidad de la República, Facultad de Ciencias, Grupo de Química Medicinal, Montevideo, Uruguay.,Universidad de la República, Facultad de Ciencias, Centro de Investigaciones Nucleares, Área de Radiofarmacia, Montevideo, Uruguay
| | - Guzmán Alvarez
- Universidad de la República, Facultad de Ciencias, Grupo de Química Medicinal, Montevideo, Uruguay.,Universidad de la República, Centro Universitario Regional Litoral Norte, Laboratorio de Moléculas Bioactivas, Paysandú, Uruguay
| | - Mercedes González
- Universidad de la República, Centro Universitario Regional Litoral Norte, Laboratorio de Moléculas Bioactivas, Paysandú, Uruguay
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25
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Çetin A, Bildirici İ. A study on synthesis and antimicrobial activity of 4-acyl-pyrazoles. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2016.05.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Deng H, Vedad J, Desamero RZB, Callender R. Difference FTIR Studies of Substrate Distribution in Triosephosphate Isomerase. J Phys Chem B 2017; 121:10036-10045. [PMID: 28990791 PMCID: PMC5687254 DOI: 10.1021/acs.jpcb.7b08114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Triosephosphate isomerase (TIM) catalyzes the interconversion between dihydroxyacetone phosphate (DHAP) and d-glyceraldehyde 3-phosphate (GAP), via an enediol(ate) intermediate. Determination of substrate population distribution in the TIM/substrate reaction mixture at equilibrium and characterization of the substrate-enzyme interactions in the Michaelis complex are ongoing efforts toward the understanding of the TIM reaction mechanism. By using isotope-edited difference Fourier transform infrared studies with unlabeled and 13C-labeled substrates at specific carbon(s), we are able to show that in the reaction mixture at equilibrium the keto DHAP is the dominant species and the populations of aldehyde GAP and enediol(ate) are very low, consistent with the results from previous X-ray structural and 13C NMR studies. Furthermore, within the DHAP side of the Michaelis complex, there is a set of conformational substates that can be characterized by the different C2═O stretch frequencies. The C2═O frequency differences reflect the different degree of the C2═O bond polarization due to hydrogen bonding from active site residues. The C2═O bond polarization has been considered as an important component for substrate activation within the Michaelis complex. We have found that in the enzyme-substrate reaction mixture with TIM from different organisms the number of substates and their population distribution within the DHAP side of the Michaelis complex may be different. These discoveries provide a rare opportunity to probe the interconversion dynamics of these DHAP substates and form the bases for the future studies to determine if the TIM-catalyzed reaction follows a simple linear reaction pathway, as previously believed, or follows parallel reaction pathways, as suggested in another enzyme system that also shows a set of substates in the Michaelis complex.
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Affiliation(s)
- Hua Deng
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, United States
| | - Jayson Vedad
- Programs in Chemistry and Biochemistry, CUNY Graduate Center and Department of Chemistry, York College of CUNY, Jamaica, New York 11451, United States
| | - Ruel Z. B. Desamero
- Programs in Chemistry and Biochemistry, CUNY Graduate Center and Department of Chemistry, York College of CUNY, Jamaica, New York 11451, United States
| | - Robert Callender
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, United States
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27
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Synthesis, antimycobacterial screening and molecular docking studies of 4-aryl-4′-methyl-2′-aryl-2,5′-bisthiazole derivatives. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1988-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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28
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Álvarez G, Perdomo C, Coronel C, Aguilera E, Varela J, Aparicio G, Zolessi FR, Cabrera N, Vega C, Rolón M, Rojas de Arias A, Pérez-Montfort R, Cerecetto H, González M. Multi-Anti-Parasitic Activity of Arylidene Ketones and Thiazolidene Hydrazines against Trypanosoma cruzi and Leishmania spp. Molecules 2017; 22:molecules22050709. [PMID: 28481276 PMCID: PMC6154605 DOI: 10.3390/molecules22050709] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/23/2017] [Accepted: 04/25/2017] [Indexed: 11/16/2022] Open
Abstract
A series of fifty arylideneketones and thiazolidenehydrazines was evaluated against Leishmania infantum and Leishmania braziliensis. Furthermore, new simplified thiazolidenehydrazine derivatives were evaluated against Trypanosoma cruzi. The cytotoxicity of the active compounds on non-infected fibroblasts or macrophages was established in vitro to evaluate the selectivity of their anti-parasitic effects. Seven thiazolidenehydrazine derivatives and ten arylideneketones had good activity against the three parasites. The IC50 values for T. cruzi and Leishmania spp. ranged from 90 nM-25 µM. Eight compounds had multi-trypanocidal activity against T. cruzi and Leishmania spp. (the etiological agents of cutaneous and visceral forms). The selectivity of these active compounds was better than the three reference drugs: benznidazole, glucantime and miltefosine. They also had low toxicity when tested in vivo on zebrafish. Trying to understand the mechanism of action of these compounds, two possible molecular targets were investigated: triosephosphate isomerase and cruzipain. We also used a molecular stripping approach to elucidate the minimal structural requirements for their anti-T. cruzi activity.
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Affiliation(s)
- Guzmán Álvarez
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú, C.P. 60000, Uruguay.
| | - Cintya Perdomo
- Laboratorio de Moléculas Bioactivas, CENUR Litoral Norte, Universidad de la República, Ruta 3 (km 363), Paysandú, C.P. 60000, Uruguay.
| | - Cathia Coronel
- Centro Para el Desarrollo de la Investigación Científica (CEDIC/FMB/Diaz Gill Medicina Laboratorial), Asunción, C.P. 1255, Paraguay.
| | - Elena Aguilera
- Grupo de Química Medicinal-Laboratorio de Química Orgánica, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
| | - Javier Varela
- Grupo de Química Medicinal-Laboratorio de Química Orgánica, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
| | - Gonzalo Aparicio
- Sección Biología Celular, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
- Cell Biology of Neural Development Laboratory, Institut Pasteur de Montevideo, Montevideo, C.P. 11400, Uruguay.
| | - Flavio R Zolessi
- Sección Biología Celular, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
- Cell Biology of Neural Development Laboratory, Institut Pasteur de Montevideo, Montevideo, C.P. 11400, Uruguay.
| | - Nallely Cabrera
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, C.P. 04510, Mexico.
| | - Celeste Vega
- Centro Para el Desarrollo de la Investigación Científica (CEDIC/FMB/Diaz Gill Medicina Laboratorial), Asunción, C.P. 1255, Paraguay.
| | - Miriam Rolón
- Centro Para el Desarrollo de la Investigación Científica (CEDIC/FMB/Diaz Gill Medicina Laboratorial), Asunción, C.P. 1255, Paraguay.
| | - Antonieta Rojas de Arias
- Centro Para el Desarrollo de la Investigación Científica (CEDIC/FMB/Diaz Gill Medicina Laboratorial), Asunción, C.P. 1255, Paraguay.
| | - Ruy Pérez-Montfort
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, C.P. 04510, Mexico.
| | - Hugo Cerecetto
- Grupo de Química Medicinal-Laboratorio de Química Orgánica, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
| | - Mercedes González
- Grupo de Química Medicinal-Laboratorio de Química Orgánica, Facultad de Ciencias, Universidad de la República, Montevideo, C.P. 11400, Uruguay.
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da Silva EB, Oliveira E Silva DA, Oliveira AR, da Silva Mendes CH, Dos Santos TAR, da Silva AC, de Castro MCA, Ferreira RS, Moreira DRM, Cardoso MVDO, de Simone CA, Pereira VRA, Leite ACL. Desing and synthesis of potent anti-Trypanosoma cruzi agents new thiazoles derivatives which induce apoptotic parasite death. Eur J Med Chem 2017; 130:39-50. [PMID: 28242550 DOI: 10.1016/j.ejmech.2017.02.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 02/09/2017] [Accepted: 02/10/2017] [Indexed: 11/28/2022]
Abstract
Chagas disease, caused by the kinetoplastid protozoan parasite Trypanosoma cruzi, remains a relevant cause of illness and premature death and it is estimated that 6 million to 7 million people are infected worldwide. Although chemotherapy options are limited presenting serious problems, such as low efficacy and high toxicity. T. cruzi is susceptible to thiazoles, making this class of compounds appealing for drug development. Previously, thiazoles resulted in an increase in anti-T. cruzi activity in comparison to thiosemicarbazones. Here, we report the structural planning, synthesis and anti-T. cruzi evaluation of new thiazoles derivatives (3a-m and 4a-m), designed from molecular hybridization associated with non-classical bioisosterism. By varying substituents attached to the phenyl and thiazole rings, substituents were observed to retain, enhance or greatly increase their anti-T. cruzi activity, in comparison to the corresponding thiosemicarbazones. In most cases, electron-withdrawing substituents, such as bromine, 3,4-dichloro and nitro groups, greatly increased antiparasitic activity. Specifically, new thiazoles were identified that inhibit the epimastigote proliferation and were toxic for trypomastigotes without affecting macrophages viability. These compounds were also evaluated against cruzain. However, inhibition of this enzyme was not observed, suggesting that the compounds work through another mechanism. In addition, examination of T. cruzi cell death showed that these molecules induce apoptosis. In conclusion, except for compounds 3h and 3k, all thiazoles derivatives evaluated exhibited higher cytotoxic activity against the trypomastigote forms than the reference medicament benznidazole, without affecting macrophages viability. Compounds 4d and 4k were highlights, CC50 = 1.2 e 1.6 μM, respectively. Mechanistically, these compounds do not inhibit the cruzain, but induce T. cruzi cell death by an apoptotic process, being considered a good starting point for the development of new anti-Chagas drug candidates.
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Affiliation(s)
- Elany Barbosa da Silva
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, PE, Brazil; Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil
| | | | - Arsênio Rodrigues Oliveira
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, PE, Brazil
| | - Carlos Henrique da Silva Mendes
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, PE, Brazil
| | | | | | - Maria Carolina Acioly de Castro
- Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil; Laboratório de Parasitologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Rafaela Salgado Ferreira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil
| | | | | | - Carlos Alberto de Simone
- Departamento de Física e Informática, Instituto de Física, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brazil
| | | | - Ana Cristina Lima Leite
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, PE, Brazil.
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30
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Rodríguez G, Nargoli J, López A, Moyna G, Álvarez G, Fernández M, Osorio-Martínez CA, González M, Cerecetto H. Synthesis and in vivo proof of concept of a BODIPY-based fluorescent probe as a tracer for biodistribution studies of a new anti-Chagas agent. RSC Adv 2017. [DOI: 10.1039/c6ra27851e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A BODIPY-fluorophore based probe (1-BODIPY) for compound 1 was developed and investigated for its potential as in vivo tracer.
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Affiliation(s)
- Gonzalo Rodríguez
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
| | - Javier Nargoli
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
| | - Andrés López
- Departamento de Química del Litoral
- Universidad de la República
- Paysandú 60000
- Uruguay
| | - Guillermo Moyna
- Departamento de Química del Litoral
- Universidad de la República
- Paysandú 60000
- Uruguay
| | - Guzmán Álvarez
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
| | - Marcelo Fernández
- Laboratorio de Experimentación Animal
- Centro de Investigaciones Nucleares
- Facultad de Ciencias
- Universidad de la República
- Uruguay
| | - Carlos A. Osorio-Martínez
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
| | - Mercedes González
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
| | - Hugo Cerecetto
- Grupo de Química Medicinal
- Laboratorio de Química Orgánica
- Instituto de Química Biológica
- Facultad de Ciencias
- Universidad de la República
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31
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Salerno A, Celentano AM, López J, Lara V, Gaozza C, Balcazar DE, Carrillo C, Frank FM, Blanco MM. Novel 2-arylazoimidazole derivatives as inhibitors of Trypanosoma cruzi proliferation: Synthesis and evaluation of their biological activity. Eur J Med Chem 2017; 125:327-334. [DOI: 10.1016/j.ejmech.2016.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/13/2016] [Accepted: 09/14/2016] [Indexed: 12/11/2022]
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32
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Aguilera E, Varela J, Birriel E, Serna E, Torres S, Yaluff G, de Bilbao NV, Aguirre-López B, Cabrera N, Díaz Mazariegos S, de Gómez-Puyou MT, Gómez-Puyou A, Pérez-Montfort R, Minini L, Merlino A, Cerecetto H, González M, Alvarez G. Potent and Selective Inhibitors of Trypanosoma cruzi Triosephosphate Isomerase with Concomitant Inhibition of Cruzipain: Inhibition of Parasite Growth through Multitarget Activity. ChemMedChem 2015; 11:1328-38. [PMID: 26492824 DOI: 10.1002/cmdc.201500385] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Indexed: 11/07/2022]
Abstract
Triosephosphate isomerase (TIM) is an essential Trypanosoma cruzi enzyme and one of the few validated drug targets for Chagas disease. The known inhibitors of this enzyme behave poorly or have low activity in the parasite. In this work, we used symmetrical diarylideneketones derived from structures with trypanosomicidal activity. We obtained an enzymatic inhibitor with an IC50 value of 86 nm without inhibition effects on the mammalian enzyme. These molecules also affected cruzipain, another essential proteolytic enzyme of the parasite. This dual activity is important to avoid resistance problems. The compounds were studied in vitro against the epimastigote form of the parasite, and nonspecific toxicity to mammalian cells was also evaluated. As a proof of concept, three of the best derivatives were also assayed in vivo. Some of these derivatives showed higher in vitro trypanosomicidal activity than the reference drugs and were effective in protecting infected mice. In addition, these molecules could be obtained by a simple and economic green synthetic route, which is an important feature in the research and development of future drugs for neglected diseases.
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Affiliation(s)
- Elena Aguilera
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Javier Varela
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Estefanía Birriel
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Elva Serna
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, 2511, Paraguay
| | - Susana Torres
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, 2511, Paraguay
| | - Gloria Yaluff
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, 2511, Paraguay
| | - Ninfa Vera de Bilbao
- Departamento de Medicina Tropical, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, 2511, Paraguay
| | - Beatriz Aguirre-López
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Nallely Cabrera
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Selma Díaz Mazariegos
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Marieta Tuena de Gómez-Puyou
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Armando Gómez-Puyou
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Ruy Pérez-Montfort
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, 04510, México
| | - Lucia Minini
- Laboratorio de Química Teórica y Computacional, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Alicia Merlino
- Laboratorio de Química Teórica y Computacional, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Hugo Cerecetto
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay.,Área de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Mercedes González
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay
| | - Guzmán Alvarez
- Grupo de Química Medicinal, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, 11600, Uruguay. .,Laboratorio de Moléculas Bioactivas, Centro Universitario Regional Litoral Norte, Universidad de la República, Rute 3 km 363, Paysandú, 60000, Uruguay.
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