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Leal MMFV, Silva MFDA, Marques DSC, Mendes RFV, Ximenes RM, Machado DC, Silva Júnior JJDA, Rodrigues CG, Filho IJDAC, Lima MDOCADE. Preliminary evaluation of the toxicological, antioxidant and antitumor activities promoted by the compounds 2,4-dihydroxy-benzylidene-thiosemicarbazones an in silico, in vitro and in vivo study. AN ACAD BRAS CIENC 2024; 96:e20231247. [PMID: 38808881 DOI: 10.1590/0001-3765202420231247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/25/2024] [Indexed: 05/30/2024] Open
Abstract
Thiosemicarbazones are promising classes of compounds with antitumor activity. For this study, six 2,4-dihydroxy-benzylidene-thiosemicarbazones compounds were synthesized. These compounds were submitted to different assays in silico, in vitro and in vivo to evaluate the toxicological, antioxidant and antitumor effects. The in silico results were evaluated by the SwissADME and pkCSM platforms and showed that all compounds had good oral bioavailability profiles. The in vitro and in vivo toxicity assays showed that the compounds showed low cytotoxicity against different normal cells and did not promote hemolytic effects. The single dose acute toxicity test (2000 mg/kg) showed that none of the compounds were toxic to mice. In in vitro antioxidant activity assays, the compounds showed moderate to low activity, with PB17 standing out for the ABTS radical capture assay. The in vivo antioxidant activity highlighted the compounds 1, 6 and 8 that promoted a significant increase in the concentration of liver antioxidant enzymes. Finally, all compounds showed promising antitumor activity against different cell lines, especially MCF-7 and DU145 lines, in addition, they inhibited the growth of sarcoma 180 at concentrations lower than 50 mg/kg. These results showed that the evaluated compounds can be considered as potential antitumor agents.
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Affiliation(s)
- Mayse Manuele F V Leal
- Federal of Pernambuco, Department of Antibiotics, Laboratory of Chemistry and Therapeutic Innovation, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Maria Fernanda DA Silva
- Federal of Pernambuco, Department of Antibiotics, Laboratory of Chemistry and Therapeutic Innovation, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Diego Santa Clara Marques
- Federal of Pernambuco, Department of Antibiotics, Laboratory of Chemistry and Therapeutic Innovation, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Raudiney Frankilin V Mendes
- Federal University of Pernambuco, Department of Antibiotics, Laboratory of Applied Ethnopharmacology, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Rafael M Ximenes
- Federal University of Pernambuco, Department of Antibiotics, Laboratory of Applied Ethnopharmacology, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Dijanah C Machado
- Federal University of Pernambuco, Department of Biophysics, Membrane Biophysics Laboratory, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Janilson José DA Silva Júnior
- Federal University of Pernambuco, Department of Biophysics, Membrane Biophysics Laboratory, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Cláudio Gabriel Rodrigues
- Federal University of Pernambuco, Department of Biophysics, Membrane Biophysics Laboratory, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Iranildo José DA Cruz Filho
- Federal of Pernambuco, Department of Antibiotics, Laboratory of Chemistry and Therapeutic Innovation, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
| | - Maria DO Carmo A DE Lima
- Federal of Pernambuco, Department of Antibiotics, Laboratory of Chemistry and Therapeutic Innovation, Avenida Professor Moraes Rego, s/n, Iputinga, 50670-901 Recife, PE, Brazil
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Silva DVSPD, Nascimento PHDB, Rocha JVRD, Marques DSC, Brayner FA, Alves LC, Araújo HDAD, Cruz Filho IJD, Albuquerque MCPDA, Lima MDCAD, Aires ADL. In vitro activity, ultrastructural analysis and in silico pharmacokinetic properties (ADMET) of thiazole compounds against adult worms of Schistosoma mansoni. Acta Trop 2023; 245:106965. [PMID: 37295486 DOI: 10.1016/j.actatropica.2023.106965] [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: 04/12/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
The present work aimed to carry out in vitro biological assays of thiazole compounds against adult worms of Schistosoma mansoni, as well as the in silico determination of pharmacokinetic parameters to predict the oral bioavailability of these compounds. In addition to presenting moderate to low cytotoxicity against mammalian cells, thiazole compounds are not considered hemolytic. All compounds were initially tested at concentrations ranging from 200 to 6.25 μM against adult worms of S. mansoni parasites. The results showed the best activity of PBT2 and PBT5 at a concentration of 200 μM, which caused 100% mortality after 3 h of incubation. While at 6 h of exposure, 100% mortality was observed at the concentration of 100 µM. Subsequent studies with these same compounds allowed classifying PBT5, PBT2, PBT6 and PBT3 compounds, which were considered active and PBT1 and PBT4 compounds, which were considered inactive. In the ultrastructural analysis the compounds PBT2 and PBT5 (200 µM) promoted integumentary changes with exposure of the muscles, formation of integumentary blisters, integuments with abnormal morphology and destruction of tubercles and spicules. Therefore, the compounds PBT2 and PBT5 are promising antiparasitics against S. mansoni.
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Affiliation(s)
| | - Pedro Henrique do Bomfim Nascimento
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50.670-901, Recife, PE, Brazil
| | - João Victor Ritinto da Rocha
- Centro de Ciências Médicas - Programa de Pós-graduação em Medicina Tropical, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Diego Santa Clara Marques
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50.670-901, Recife, PE, Brazil
| | - Fábio André Brayner
- Departamento de Parasitologia, Instituto Aggeu Magalhães, Avenida Prof. Moraes Rego, 1235, Cidade Universitária. CEP 50670-901, Recife, PE, Brazil; Instituto Keizo Asami - iLIKA, UFPE, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50670-901, Recife-PE, Brazil
| | - Luiz Carlos Alves
- Departamento de Parasitologia, Instituto Aggeu Magalhães, Avenida Prof. Moraes Rego, 1235, Cidade Universitária. CEP 50670-901, Recife, PE, Brazil; Instituto Keizo Asami - iLIKA, UFPE, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50670-901, Recife-PE, Brazil
| | - Hallysson Douglas Andrade de Araújo
- Instituto Keizo Asami - iLIKA, UFPE, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50670-901, Recife-PE, Brazil; Departamento de Bioquímica. Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50.670-901, Recife, PE, Brazil
| | - Iranildo José da Cruz Filho
- Centro de Biociências, Programa de Pós-graduação em Morfotecnologia, Universidade Federal de Pernambuco, Recife, Brazil; Departamento de Antibióticos, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50.670-901, Recife, PE, Brazil
| | | | - Maria do Carmo Alves de Lima
- Departamento de Parasitologia, Instituto Aggeu Magalhães, Avenida Prof. Moraes Rego, 1235, Cidade Universitária. CEP 50670-901, Recife, PE, Brazil
| | - André de Lima Aires
- Centro de Biociências, Programa de Pós-graduação em Morfotecnologia, Universidade Federal de Pernambuco, Recife, Brazil; Centro de Ciências Médicas - Programa de Pós-graduação em Medicina Tropical, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil; Instituto Keizo Asami - iLIKA, UFPE, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50670-901, Recife-PE, Brazil.
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Jacob IT, da Cruz Filho IJ, Alves JEF, de Melo Souza F, de Azevedo RDS, Marques DSC, de Lima Souza TRC, Dos Santos KL, da Rocha Pitta MG, de Melo Rêgo MJB, Oliveira JF, Almeida SMV, do Carmo Alves de Lima M. Interaction study with DNA/HSA, anti-topoisomerase IIα, cytotoxicity and in vitro antiproliferative evaluations and molecular docking of indole-thiosemicarbazone compounds. Int J Biol Macromol 2023; 234:123606. [PMID: 36773880 DOI: 10.1016/j.ijbiomac.2023.123606] [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: 11/15/2022] [Revised: 01/20/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023]
Abstract
In this work we will discuss the antiproliferative evaluation and the possible mechanisms of action of indole-thiosemicarbazone compounds LTs with anti-inflammatory activity, previously described in the literature. In this perspective, some analyzes were carried out, such as the study of binding to human serum albumin (HSA) and to biological targets: DNA and human topoisomerase IIα (topo). Antiproliferative study was performed with DU-145, Jukart, MCF-7 and T-47D tumor lines and J774A.1, besides HepG2 macrophages and hemolytic activity. In the HSA interaction tests, the highest binding constant was 3.70 × 106 M-1, referring to LT89 and in the fluorescence, most compounds, except for LT76 and LT87, promoted fluorescent suppression with the largest Stern-Volmer constant for the LT88 3.55 × 104. In the antiproliferative assay with DU-145 and Jurkat strains, compounds LT76 (0.98 ± 0.10/1.23 ± 0.32 μM), LT77 (0.94 ± 0.05/1.18 ± 0.08 μM) and LT87 (0.94 ± 0.12/0.84 ± 0.09 μM) stood out, due to their IC50 values mentioned above. With the MCF-7 and T-47D cell lines, the lowest IC50 was presented by LT81 with values of 0.74 ± 0.12 μM and 0.68 ± 0.10 μM, respectively, followed by the compounds LT76 and LT87. As well as the positive control amsacrine, the compounds LT76, LT81 and LT87 were able to inhibit the enzymatic action of human Topoisomerase IIα.
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Affiliation(s)
- Iris Trindade Jacob
- Department of Antibiotics, Federal University of Pernambuco, 50670-901, Brazil
| | | | | | - Felipe de Melo Souza
- Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil
| | | | | | | | | | | | | | - Jamerson Ferreira Oliveira
- University for the International Integration of Afro-Brazilian Lusophony (UNILAB), 62790-970 Redenção, CE, Brazil
| | - Sinara Mônica Vitalino Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, 50670-901, Brazil; Universidade de Pernambuco (UPE), Multicampi Garanhuns, Garanhuns, PE 55290-000, Brazil.
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Synthesis, characterization, antioxidant and antiparasitic activities new naphthyl-thiazole derivatives. Exp Parasitol 2023; 248:108498. [PMID: 36907541 DOI: 10.1016/j.exppara.2023.108498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 02/10/2023] [Accepted: 03/03/2023] [Indexed: 03/14/2023]
Abstract
In this work, 13 thiosemicarbazones (1a - m) and 16 thiazoles (2a - p) were obtained, which were properly characterized by spectroscopic and spectrometric techniques. The pharmacokinetic properties obtained in silico revealed that the derivatives are in accordance with the parameters established by lipinski and veber, showing that such compounds have good bioavailability or permeability when administered orally. In assays of antioxidant activity, thiosemicarbazones showed moderate to high antioxidant potential when compared to thiazoles. In addition, they were able to interact with albumin and DNA. Screening assays to assess the toxicity of compounds to mammalian cells revealed that thiosemicarbazones were less toxic when compared to thiazoles. In relation to in vitro antiparasitic activity, thiosemicarbazones and thiazoles showed cytotoxic potential against the parasites Leishmania amazonensis and Trypanosoma cruzi. Among the compounds, 1b, 1j and 2l stood out, showing inhibition potential for the amastigote forms of the two parasites. As for the in vitro antimalarial activity, thiosemicarbazones did not inhibit Plasmodium falciparum growth. In contrast, thiazoles promoted growth inhibition. This study shows in a preliminary way that the synthesized compounds have antiparasitic potential in vitro.
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Guterres Fernandes OL, Tizziani T, Dambrós BP, Ferreira de Sousa N, Mansur Pontes CL, da Silva LAL, Escorteganha Pollo LA, de Assis FF, Scotti MT, Scotti L, Braga AL, Steindel M, Sandjo LP. Studies of Cytotoxicity Effects, SARS-CoV-2 Main Protease Inhibition, and in Silico Interactions of Synthetic Chalcones. Chem Biodivers 2023; 20:e202201151. [PMID: 36740573 DOI: 10.1002/cbdv.202201151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/07/2023]
Abstract
SARS-CoV-2 main protease (Mpro ) plays an essential role in proteolysis cleavage that promotes coronavirus replication. Thus, attenuating the activity of this enzyme represents a strategy to develop antiviral agents. We report inhibitory effects against Mpro of 40 synthetic chalcones, and cytotoxicity activities, hemolysis, and in silico interactions of active compounds. Seven of them bearing a (E)-3-(furan-2-yl)-1-arylprop-2-en-1-one skeleton (10, 28, and 35-39) showed enzyme inhibition with IC50 ranging from 13.76 and 36.13 μM. Except for 35 and 36, other active compounds were not cytotoxic up to 150 μM against THP-1 and Vero cell lines. Compounds 10, and 35-39 showed no hemolysis while 28 was weakly hemotoxic at 150 μM. Moreover, molecular docking showed interactions between compound 10 and Mpro (PDBID 5RG2 and 5RG3) with proximity to cys145 and His41, suggesting a covalent binding. Products of the reaction between chalcones and cyclohexanethiol indicated that this binding could be a Michael addition type.
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Affiliation(s)
- Octavio L Guterres Fernandes
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Tiago Tizziani
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Bibiana P Dambrós
- Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Natália Ferreira de Sousa
- Postgraduate Program in Natural and Bioactive Synthetic Products, Department of Pharmaceutical Sciences, Universidade Federal de Paraíba, 50670-910, João Pessoa, Paraíba, Brazil
| | - Carime L Mansur Pontes
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Layzon A L da Silva
- Postgraduate Program in Pharmacy, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Luiz A Escorteganha Pollo
- Postgraduate Program in Pharmacy, Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Francisco F de Assis
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Marcus T Scotti
- Postgraduate Program in Natural and Bioactive Synthetic Products, Department of Pharmaceutical Sciences, Universidade Federal de Paraíba, 50670-910, João Pessoa, Paraíba, Brazil
| | - Luciana Scotti
- Postgraduate Program in Natural and Bioactive Synthetic Products, Department of Pharmaceutical Sciences, Universidade Federal de Paraíba, 50670-910, João Pessoa, Paraíba, Brazil
| | - Antonio L Braga
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Mario Steindel
- Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Louis P Sandjo
- Postgraduate Program in Chemistry, Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário da Trindade, 88040-900, Florianópolis, SC, Brazil
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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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Synthesis and Evaluation of Antiproliferative Activity, Topoisomerase IIα Inhibition, DNA Binding and Non-Clinical Toxicity of New Acridine-Thiosemicarbazone Derivatives. Pharmaceuticals (Basel) 2022; 15:ph15091098. [PMID: 36145320 PMCID: PMC9506480 DOI: 10.3390/ph15091098] [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: 07/06/2022] [Revised: 08/16/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, we report the synthesis of twenty new acridine–thiosemicarbazone derivatives and their antiproliferative activities. Mechanisms of action such as the inhibition of topoisomerase IIα and the interaction with DNA have been studied for some of the most active derivatives by means of both in silico and in vitro methods, and evaluations of the non-clinical toxicities (in vivo) in mice. In general, the compounds showed greater cytotoxicity against B16-F10 cells, with the highest potency for DL-08 (IC50 = 14.79 µM). Derivatives DL-01 (77%), DL-07 (74%) and DL-08 (79%) showed interesting inhibition of topoisomerase IIα when compared to amsacrine, at 100 µM. In silico studies proposed the way of bonding of these compounds and a possible stereoelectronic reason for the absence of enzymatic activity for CL-07 and DL-06. Interactions with DNA presented different spectroscopic effects and indicate that the compound CL-07 has higher affinity for DNA (Kb = 4.75 × 104 M−1; Ksv = 2.6 × 103 M−1). In addition, compounds selected for non-clinical toxicity testing did not show serious signs of toxicity at the dose of 2000 mg/kg in mice; cytotoxic tests performed on leukemic cells (K-562) and its resistant form (K-562 Lucena 1) identified moderate potency for DL-01 and DL-08, with IC50 between 11.45 and 17.32 µM.
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Rocha YM, Magalhães EP, de Medeiros Chaves M, Machado Marinho M, Nascimento E Melo de Oliveira V, Nascimento de Oliveira R, Lima Sampaio T, de Menezes RRPPB, Martins AMC, Nicolete R. Antiparasitary and antiproliferative activities in vitro of a 1,2,4-oxadiazole derivative on Trypanosoma cruzi. Parasitol Res 2022; 121:2141-2156. [PMID: 35610523 DOI: 10.1007/s00436-022-07554-z] [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: 10/18/2021] [Accepted: 05/13/2022] [Indexed: 11/26/2022]
Abstract
Chagas disease (CD) is a neglected disease, prevalent and endemic in Latin America, but also present in Europe and North America. The main treatment used for this disease is benznidazole, but its efficacy is variable in the chronic phase and presents high toxicity. So, there is a need for the development of new therapeutic agents. The five-membered heterocyclic 1,2,4-oxadiazole ring has received attention for its unique properties and a broad spectrum of biological activities and is therefore a potential candidate for the development of new drugs. Thus, the aim of this study was to evaluate the activity of the N-cyclohexyl-3-(3-methylphenyl)-1,2,4-oxadiazol-5-amine (2) on the evolutionary forms of Trypanosoma cruzi strain Y, as well as its mechanisms of action and in silico theoretical approach. The results by computational method showed an interaction of the 1,2,4-oxadiazole (2) with TcGAPDH, cruzain, and trypanothione reductase, showing good charge distribution and affinity in those three targets. Furthermore, cytotoxicity in LLC-MK2 cells was performed by the MTT method. In the assays with different parasite forms, the tested compound showed similar time-dependent concentration effect. The evaluation of the antiamastigote effect between the two concentrations tested showed a reduction in the number of infected cells and also in the number of amastigotes per infected cell. By flow cytometry, the compound (2) displayed alterations suggestive of necrotic events. Finally, in scanning electron microscopy structural alterations were present, characteristic of necrosisin the epimastigote forms. Overall, the 1,2,4-oxadiazole derivative (2) here evaluated opens perspectives to the development of new antichagasic agents.
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Affiliation(s)
- Yasmim Mendes Rocha
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Fundação Oswaldo Cruz (Fiocruz Ceará), Rua São José, S/N, Eusébio, 61760-000, Brazil
| | - Emanuel Paula Magalhães
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Márcia Machado Marinho
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Valentina Nascimento E Melo de Oliveira
- Department of Chemistry, Federal Rural University of Pernambuco, Recife, PE, Brazil
- Instituto Federal de Educação Ciência E Tecnologia de Pernambuco, Campus Ipojuca, Ipojuca, 55590-000, Brazil
| | | | - Tiago Lima Sampaio
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Ramon R P P B de Menezes
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Alice M C Martins
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Roberto Nicolete
- Post-Graduate Program in Pharmaceutical Sciences - Federal University of Ceará, Fortaleza, CE, Brazil.
- Fundação Oswaldo Cruz (Fiocruz Ceará), Rua São José, S/N, Eusébio, 61760-000, Brazil.
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Gouveia ALA, Santos FAB, Alves LC, Cruz-Filho IJ, Silva PR, Jacob ITT, Soares JCS, Santos DKDN, Souza TRCL, Oliveira JF, Lima MDCA. Thiazolidine derivatives: In vitro toxicity assessment against promastigote and amastigote forms of Leishmania infantum and ultrastructural study. Exp Parasitol 2022; 236-237:108253. [PMID: 35381223 DOI: 10.1016/j.exppara.2022.108253] [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: 08/03/2021] [Revised: 02/08/2022] [Accepted: 03/30/2022] [Indexed: 11/04/2022]
Abstract
Neglected diseases, such as Leishmaniasis, constitute a group of communicable diseases that occur mainly in tropical countries. Considered a public health problem with limited treatment. Therefore, there is a need for new therapies. In this sense, our proposal was to evaluate in vitro two series of thiazolidine compounds (7a-7e and 8a-8e) against Leishmania infantum. We performed in vitro evaluations through macrophage cytotoxicity assays (J774) and nitric oxide production, activity against promastigotes and amastigotes, as well as ultrastructural analyzes in promastigotes. In the evaluation of cytotoxicity, the thiazolidine compounds presented CC50 values between 8.52 and 126.83 μM. Regarding the evaluation against the promastigote forms, the IC50 values ranged between 0.42 and 142.43 μM. Compound 7a was the most promising, as it had the lowest IC50. The parasites treated with compound 7a showed several changes, such as cell body shrinkage, shortening and loss of the flagellum, intense mitochondrial edema and cytoplasmic vacuolization, leading the parasite to cell inviability. In assays against the amastigote forms, the compound showed a low IC50 (0.65 μM). These results indicate that compound 7a was efficient for both evolutionary forms of the parasite. In silico studies suggest that the compound has good oral bioavailability. These results show that compound 7a is a potential drug candidate for the treatment of Leishmaniasis.
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Affiliation(s)
- Allana L A Gouveia
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - Fábio A B Santos
- Aggeu Magalhães Institut. Oswaldo Cruz Foundation (IAM-FIOCRUZ), 50670-420, Recife, PE, Brazil
| | - Luiz C Alves
- Aggeu Magalhães Institut. Oswaldo Cruz Foundation (IAM-FIOCRUZ), 50670-420, Recife, PE, Brazil
| | - Iranildo José Cruz-Filho
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - Paula R Silva
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - Iris T T Jacob
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - José Cleberson S Soares
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - Dayane K D N Santos
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil
| | - Tulio Ricardo C L Souza
- Rural University of Pernambuco, Academic Unit of Belo Jardim, 55156-580, Belo Jardim, PE, Brazil
| | - Jamerson F Oliveira
- University for the International Integration of Afro-Brazilian Lusophony (UNILAB), 62790-970, Redenção, CE, Brazil
| | - Maria do Carmo A Lima
- Federal University of Pernambuco, Department of Antibiotics, Center for Biosciences, 50.670-420, Recife, PE, Brazil.
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10
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da Silva PR, do Carmo Alves de Lima M, Souza TP, Sandes JM, da Conceição Alves de Lima A, Neto PJR, Dos Santos FAB, Alves LC, da Silva RMF, de Moraes Rocha GJ, da Cruz Filho IJ. Lignin from Morinda citrifolia leaves: Physical and chemical characterization, in vitro evaluation of antioxidant, cytotoxic, antiparasitic and ultrastructural activities. Int J Biol Macromol 2021; 193:1799-1812. [PMID: 34774863 DOI: 10.1016/j.ijbiomac.2021.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/20/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
In this work, we investigated in vitro the antioxidant, cytotoxic and anti-leishmanial activities of a lignin extracted from the leaves of Morinda citrifolia. Initially, an analysis of the composition of the sheets was performed, then the lignin was obtained by alkaline delignification and characterized by different techniques: elemental analysis, FT-R, UV-vis, HSQC-NMR, thermal analysis, Py-GC/MS and by GPC. The results showed that the leaves had in their composition cellulose (31.29%), hemicellulose (25.01%), lignin (18.34%), extractives (14.39%) and ash (10.03%). The lignin extraction yield was 89.8%. The lignin obtained is of the GSH type with the following contents 79.39%, 13.58% and 7.03% respectively. Furthermore, it is low molecular weight and thermally stable. It had a phenolic content of 93.3 mg GAE/g and low antioxidant activity. In macrophage cytotoxicity assays, it presented a CC50 of 31.0 μg/mL, showing less toxicity than amphotericin B. In assays against the promastigote forms of Leishmania amazonensis, lignin presented an IC50 of 29.56 μg/mL, a less effective concentration than amphotericin B (IC50 = 0.14 μg/mL). However, it was able to promote inhibition of the parasites, a fact confirmed by structural changes. These findings reinforce that M. citrifolia lignin is a promising macromolecule for use as an antiparasitic and antioxidant agent.
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Affiliation(s)
- Paula Roberta da Silva
- Federal University of Pernambuco, Department of Antibiotics, Biosciences Center, 50.670-420 Recife, PE, Brazil
| | | | - Thammyris Pires Souza
- Federal University of Pernambuco, Department of Antibiotics, Biosciences Center, 50.670-420 Recife, PE, Brazil
| | - Jana Messias Sandes
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (IAM-FIOCRUZ), 50670-420 Recife, PE, Brazil
| | | | - Pedro José Rolim Neto
- Federal University of Pernambuco, Department of Pharmacia, Health Sciences Center, 50.670-420 Recife, PE, Brazil
| | | | - Luiz Carlos Alves
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (IAM-FIOCRUZ), 50670-420 Recife, PE, Brazil
| | | | - George Jackson de Moraes Rocha
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Polo II de Alta Tecnologia, Rua Giuseppe Máximo Scolfaro, 10.000, PO Box 6192, 13083-100 Campinas, SP, Brazil.
| | - Iranildo José da Cruz Filho
- Federal University of Pernambuco, Department of Antibiotics, Biosciences Center, 50.670-420 Recife, PE, Brazil
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11
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Haroon M, de Barros Dias MCH, Santos ACDS, Pereira VRA, Barros Freitas LA, Balbinot RB, Kaplum V, Nakamura CV, Alves LC, Brayner FA, Leite ACL, Akhtar T. The design, synthesis, and in vitro trypanocidal and leishmanicidal activities of 1,3-thiazole and 4-thiazolidinone ester derivatives. RSC Adv 2021; 11:2487-2500. [PMID: 35424158 PMCID: PMC8693751 DOI: 10.1039/d0ra06994a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/25/2020] [Indexed: 11/21/2022] Open
Abstract
Chagas and leishmaniasis are both neglected tropical diseases, whose inefficient therapies have made them remain the cause for millions of deaths worldwide. Given this, we synthesized 27 novel 1,3-thiazoles and 4-thiazolidinones using bioisosteric and esterification strategies to develop improved and safer drug candidates. After an easy, rapid and low-cost synthesis with satisfactory yields, compounds were structurally characterized. Then, in vitro assays were performed, against Leishmania infantum and Leishmania amazonensis promastigotes, Trypanosoma cruzi trypomastigotes and amastigotes, for selected compounds to determine IC50 and SI, with cytotoxicity on LLC-MK2 cell lines. Overall, 1,3-thiazoles exhibited better trypanocidal activity than 4-thiazolidinones. The compound 1f, an ortho-bromobenzylidene-substituted 1,3-thiazole (IC50 = 0.83 μM), is the most potent of them all. In addition, compounds had negligible cytotoxicity in mammalian cells (CC50 values > 50 μM). Also noteworthy is the examination of the cell death mechanism of T. cruzi, which showed that compound 1f induced necrosis and apoptosis in the parasite. Scanning electron microscopy analysis demonstrated that the treatment of Trypanosoma cruzi trypomastigote cells with the compound 1f at different IC50 concentrations promoted alterations in the shape, flagella and body surface, inducing parasite death. Together, our data revealed a novel series of 1,3-thiazole structure-based compounds with promising activity against Trypanosoma cruzi and Leishmania spp., broadening ways for scaffold optimization. Chagas and leishmaniasis are both neglected tropical diseases, whose inefficient therapies have made them remain the cause for millions of deaths worldwide.![]()
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Affiliation(s)
- Muhammad Haroon
- Department of Chemistry
- Mirpur University of Science and Technology (MUST), Mirpur
- 10250-Mirpur
- Pakistan
| | - Mabilly Cox Holanda de Barros Dias
- Laboratório de Planejamento em química medicinal
- Department of Pharmaceutical Sciences
- Health Sciences Centre
- Federal University of Pernambuco
- Recife
| | | | | | - Luiz Alberto Barros Freitas
- Laboratório de Planejamento em química medicinal
- Department of Pharmaceutical Sciences
- Health Sciences Centre
- Federal University of Pernambuco
- Recife
| | - Rodolfo Bento Balbinot
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos
- State University of Maringá
- Paraná
- Brazil
| | - Vanessa Kaplum
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos
- State University of Maringá
- Paraná
- Brazil
| | - Celso Vataru Nakamura
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos
- State University of Maringá
- Paraná
- Brazil
| | - Luiz Carlos Alves
- Laboratório de Imunopatologia Keizo Asami (LIKA)
- Recife
- Brazil
- Instituto Aggeu Magalhães
- Fundação Oswaldo Cruz
| | - Fábio André Brayner
- Laboratório de Imunopatologia Keizo Asami (LIKA)
- Recife
- Brazil
- Instituto Aggeu Magalhães
- Fundação Oswaldo Cruz
| | - Ana Cristina Lima Leite
- Laboratório de Planejamento em química medicinal
- Department of Pharmaceutical Sciences
- Health Sciences Centre
- Federal University of Pernambuco
- Recife
| | - Tashfeen Akhtar
- Department of Chemistry
- Mirpur University of Science and Technology (MUST), Mirpur
- 10250-Mirpur
- Pakistan
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