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  3. Structural design, synthesis, and anti-Trypanosomatidae profile of new Pyridyl-thiazolidinones

Structural design, synthesis, and anti-Trypanosomatidae profile of new Pyridyl-thiazolidinones

  • Eur J Med Chem. 2023 Apr 6;254:115310. doi: 10.1016/j.ejmech.2023.115310.
Juliana Maria da Conceição 1,  Aline Caroline da Silva Santos 2,  Fabio André Brayner 3,  Luiz Carlos Alves 3,  Aline Ferreira Pinto 1,  Graziella Leite Brondani 1,  Gevânio Bezerra de Oliveira Filho 1,  Danilo Cesar Galindo Bedor 1,  José Wellithom Viturino da Silva 1,  Policarpo Ademar Sales Junior 2,  Marton Kaique de Andrade Cavalcante 2,  Elis Dionísio da Silva 4,  Valéria Rêgo Alves Pereira 2,  Ana Cristina Lima Leite 5
Affiliations

Affiliations

  • 1 Laboratory of Planning in Medicinal Chemistry, Department of Pharmaceutical Sciences, Center for Health Sciences, Federal University of Pernambuco, 50740-535, Recife, PE, Brazil.
  • 2 Laboratory of Immunopathology and Molecular Biology, Department of Immunology, Aggeu Magalhães Institute, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil.
  • 3 Laboratory of Immunopathology and Molecular Biology, Department of Immunology, Aggeu Magalhães Institute, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil; Instituto Keizo Asami (iLIKA), Campus UFPE, 50670-901, Recife, PE, Brazil.
  • 4 Instituto de Saúde e Biotecnologia, Universidade Federal do Amazonas, 69460-000, Coari, AM, Brazil.
  • 5 Laboratory of Planning in Medicinal Chemistry, Department of Pharmaceutical Sciences, Center for Health Sciences, Federal University of Pernambuco, 50740-535, Recife, PE, Brazil. Electronic address: [email protected].
PMID: 37062170 DOI: 10.1016/j.ejmech.2023.115310
Abstract

The present work reports the synthesis of a novel series of pyridine-thiazolidinones with anti-Trypanosoma cruzi and leishmanicidal activities (compounds 10-27), derived from 2 or 4-pyridine thiosemicarbazones (1-9). The in vitro assays were performed with Trypanosoma cruzi trypomastigotes and amastigotes, as well as with Leishmania amazonensis promastigotes and amastigotes. The cytotoxicity profile was evaluated using the cell line RAW 264.7. From the 18 pyridine-thiazolidinones, 5 were able to inhibit trypomastigotes. Overall, all compounds inhibited amastigotes, highlighting compounds 15 (0.60 μM), 18 (0.64 μM), 17 (0.81 μM), and 27 (0.89 μM). Compounds 15 and 18 were able to induce Parasite cell death through necrosis induction. Analysis by scanning electron microscopy showed that T. cruzi trypomastigotes treated with compounds 15 and 18 induced morphological changes such as shortening, retraction and curvature of the Parasite body and leakage of internal content. Regarding the antiparasitic evaluation against Leishmania amazonensis, only compound 27 had a higher selectivity compared to Miltefosine against the amastigote form (IC50 = 5.70 μM). Our results showed that compound 27 presented an antiparasitic activity for both Trypanosoma cruzi and Leishmania amazonensis. After in silico evaluation, it was suggested that the new pyridine-thiazolidinones had an appropriate drug-likeness profile. Our results pointed out a new chemical frame with an anti-Trypanosomatidae profile. The pyridine-thiazolidinones presented here for the first time could be used as a starting point for the development of new antiparasitic agents.

Keywords

Leishmania amazonensis; Pyridine; Thiazolidinone; Trypanosoma cruzi.

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