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Cox Holanda de Barros Dias M, Souza Barbalho M, Bezerra de Oliveira Filho G, Veríssimo de Oliveira Cardoso M, Lima Leite AC, da Silva Santos AC, Cristovão Silva AC, Accioly Brelaz de Castro MC, Maria Nascimento Moura D, Gomes Rebello Ferreira LF, Zaldini Hernandes M, de Freitas E Silva R, Rêgo Alves Pereira V. 1,3-Thiazole derivatives as privileged structures for anti-Trypanosoma cruzi activity: Rational design, synthesis, in silico and in vitro studies. Eur J Med Chem 2023; 257:115508. [PMID: 37267753 DOI: 10.1016/j.ejmech.2023.115508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 06/04/2023]
Abstract
Chagas disease is a deadly and centenary neglected disease that is recently surging as a potential global threat. Approximately 30% of infected individuals develop chronic Chagas cardiomyopathy and current treatment with the reference benznidazole (BZN) is ineffective for this stage. We presently report the structural planning, synthesis, characterization, molecular docking prediction, cytotoxicity, in vitro bioactivity and mechanistic studies on the anti-T. cruzi activity of a series of 16 novel 1,3-thiazoles (2-17) derived from thiosemicarbazones (1a, 1b) in a two-step and reproducible Hantzsch-based synthesis approach. The anti-T. cruzi activity was evaluated in vitro against the epimastigote, amastigote and trypomastigote forms of the parasite. In the bioactivity assays, all thiazoles were more potent than BZN against epimastigotes. We found that the compounds presented an overall increased anti-tripomastigote selectivity (Cpd 8 was 24-fold more selective) than BZN, and they mostly presented anti-amastigote activity at very low doses (from 3.65 μM, cpd 15). Mechanistic studies on cell death suggested that the series of 1,3-thiazole compounds herein reported cause parasite cell death through apoptosis, but without compromising the mitochondrial membrane potential. In silico prediction of physicochemical properties and pharmacokinetic parameters showed promising drug-like results, being all the reported compounds in compliance with Lipinski and Veber rules. In summary, our work contributes towards a more rational design of potent and selective antitripanosomal drugs, using affordable methodology to yield industrially viable drug candidates.
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Affiliation(s)
- Mabilly Cox Holanda de Barros Dias
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, Pernambuco, Brazil.
| | - Mayara Souza Barbalho
- Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670- 420, Recife, Pernambuco, Brazil
| | - Gevanio Bezerra de Oliveira Filho
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, Pernambuco, Brazil
| | | | - Ana Cristina Lima Leite
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, Pernambuco, Brazil
| | | | | | | | | | - Luiz Felipe Gomes Rebello Ferreira
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, Pernambuco, Brazil
| | - Marcelo Zaldini Hernandes
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520, Recife, Pernambuco, Brazil
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2
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Brelaz de Castro MCA, de Freitas E Silva R, de Andrade Cavalcante MK, Silva LLSB, Santos Dos Gomes FO, de Brito MEF, Pereira VRA. Chemokine receptors on human regulatory T cells during cutaneous leishmaniasis. Parasite Immunol 2023; 45:e12966. [PMID: 36601688 DOI: 10.1111/pim.12966] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
The aim of this work was to define the population of regulatory T cells (Tregs) which are circulating in the blood of Leishmania infected individuals clinically displaying a lesion (active disease-AD) and sub-clinical (SC) ones. We have individually collected blood samples, processed the PBMC and stained with fluorochrome-conjugated antibodies against CD3, CD4, Foxp3, CD25, CTLA-4, Ki-67, CCR4, CCR5, and CCR7. Cells were analyzed by flow cytometry. Our results suggest that CD25 and CTLA-4 are upregulated in Tregs of AD patients when compared to SC and uninfected (UN) controls. Moreover, Tregs proliferate upon infection based on Ki-67 nuclear antigen staining. Finally, we have observed that these Tregs of SC and AD patients upregulate CCR4, but not CCR5 and CCR7. There is an increase in the number of circulating Tregs in the blood of Leishmania infected individuals. These cells are potentially more suppressive based on the increased upregulation of CD25 and CTLA-4 during clinical infection (AD) when compared to SC infection. Tregs of both SC and AD cohorts are proliferating and express CCR4, which potentially guide them to the skin, but do not upregulate CCR5 and CCR7.
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Affiliation(s)
- Maria Carolina Accioly Brelaz de Castro
- Department of Immunology, Aggeu Magalhães Institute - Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.,Parasitology Laboratory, Federal University of Pernambuco, Vitória de Santo Antão, Pernambuco, Brazil
| | - Rafael de Freitas E Silva
- Department of Immunology, Aggeu Magalhães Institute - Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.,University of Pernambuco, Recife, Pernambuco, Brazil.,Catholic University of Pernambuco, Recife, Pernambuco, Brazil
| | - Marton Kaique de Andrade Cavalcante
- Department of Immunology, Aggeu Magalhães Institute - Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.,Parasitology Laboratory, Federal University of Pernambuco, Vitória de Santo Antão, Pernambuco, Brazil
| | - Larissa Layne Soares Bezerra Silva
- Department of Immunology, Aggeu Magalhães Institute - Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.,Parasitology Laboratory, Federal University of Pernambuco, Vitória de Santo Antão, Pernambuco, Brazil
| | - Fabiana Oliveira Santos Dos Gomes
- Division of Immunobiology, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Valéria Rêgo Alves Pereira
- Department of Immunology, Aggeu Magalhães Institute - Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil
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3
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Leite-Andrade MC, de Araújo Neto LN, Buonafina-Paz MDS, de Assis Graciano dos Santos F, da Silva Alves AI, de Castro MCAB, Mori E, de Lacerda BCGV, Araújo IM, Coutinho HDM, Kowalska G, Kowalski R, Baj T, Neves RP. Antifungal Effect and Inhibition of the Virulence Mechanism of D-Limonene against Candida parapsilosis. Molecules 2022; 27:molecules27248884. [PMID: 36558017 PMCID: PMC9788451 DOI: 10.3390/molecules27248884] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/23/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Yeasts from the Candida parapsilosis complex are clinically relevant due to their high virulence and pathogenicity potential, such as adherence to epithelial cells and emission of filamentous structures, as well as their low susceptibility to antifungals. D-limonene, a natural compound, emerges as a promising alternative with previously described antibacterial, antiparasitic, and antifungal activity; however, its mechanisms of action and antivirulence activity against C. parapsilosis complex species have not been elucidated. Therefore, in the present study, we aimed to evaluate the antifungal and antivirulence action, as well as the mechanism of action of D-limonene against isolates from this complex. D-limonene exhibited relevant antifungal activity against C. parapsilosis complex yeasts, as well as excellent antivirulence activity by inhibiting yeast morphogenesis and adherence to the human epithelium. Furthermore, the apoptotic mechanism induced by this compound, which is not induced by oxidative stress, represents an important target for the development of new antifungal drugs.
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Affiliation(s)
| | | | | | | | | | - Maria Carolina Accioly Brelaz de Castro
- Laboratório de Parasitologia e Laboratório de Imunologia IAM, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE), Vitória de Santo Antão 55608-680, PE, Brazil
| | - Edna Mori
- Faculdade CECAPE College, São José, Juazeiro do Norte 63024-015, CE, Brazil
| | | | - Isaac Moura Araújo
- Departamento de Química Biológica, Universidade Regional do Cariri, Crato 63105-010, CE, Brazil
| | - Henrique Douglas Melo Coutinho
- Departamento de Química Biológica, Universidade Regional do Cariri, Crato 63105-010, CE, Brazil
- Correspondence: (H.D.M.C.); (T.B.)
| | - Grażyna Kowalska
- Department of Tourism and Recreation, University of Life Sciences in Lublin, 15 Akademicka Str., 20-950 Lublin, Poland
| | - Radosław Kowalski
- Department of Analysis and Food Quality Assessment, University of Life Sciences in Lublin, 8 Skromna Str., 20-704 Lublin, Poland
| | - Tomasz Baj
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland
- Correspondence: (H.D.M.C.); (T.B.)
| | - Rejane Pereira Neves
- Departamento de Micologia, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
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Nunes dos Santos Silva V, Da Silva Santos AC, Rêgo Alves Pereira V, Accioly Brelaz de Castro MC. Considerations about leishmaniasis and the current scenario for the development of new treatments. Rev Patol Trop 2022. [DOI: 10.5216/rpt.v50i4.69817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Leishmaniasis is a neglected disease that affects millions of people around the world, mainly socially vulnerable populations and is considered a serious public health problem. Caused by several species of the flagellated protozoa of the Leishmania genus, it is transmitted to man through female sand fly bites. The disease can present the cutaneous, mucocutaneous and visceral clinical forms, varying according to the parasite species and depending on host immune response. Depending on its evolution, the disease may pose serious risks to the afflicted individual’s health. In general, treatment for Leishmaniasis is with pentavalent antimonials, in use for approximately 70 years. However, the existing treatment for Leishmaniasis presents drawbacks such as high toxicity, several side effects, cases of resistance, highlighting the need for new efficient therapeutic approaches. Given all the problems that involve the current treatment of leishmaniasis, it is of paramount importance to seek and screen new molecules that have leishmanicidal activity, meet the safety criteria, while presenting low toxicity, low cost, easy administration and that cure efficiently. This review presents some considerations on the leishmaniasis situation, its treatment and the current panorama for the development of new therapies.KEY WORDS: Leishmania spp.; therapeutics; drug development; immune response.
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de Araújo Neto LN, de Lima MDCA, de Oliveira JF, de Souza ER, Feitosa Machado SE, de Souza Lima GM, Silva Buonafina MD, Brayner FA, Alves LC, Sandes JM, da Silva MV, de Castro MCAB, Pereira Neves R, Bezerra Mendonça-Junior FJ. Thiophene-thiosemicarbazone derivative (L10) exerts antifungal activity mediated by oxidative stress and apoptosis in C. albicans. Chem Biol Interact 2020; 320:109028. [PMID: 32119865 DOI: 10.1016/j.cbi.2020.109028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 11/26/2022]
Abstract
Reactive oxygen species (ROS) cause cell damage and death. To reverse these effects, cells produce substances such as reduced glutathione (GSH) that serve as substrates for antioxidant enzymes. One way to combat microbial resistance includes nullifying the effect of glutathione in microbial cells, causing them to die from oxidative stress. The compound 2-((5-nitrothiophen-2-yl)methylene)-N-(pyridin-3-yl) hydrazine carbothioamide (L10) is a new thiophene-thiosemicarbazone derivative with promising antifungal activity. The aim of this study was to evaluate its mechanism of action against Candida albicans using assays that evaluate its effects on redox balance. Treatment with L10 promoted significant changes in the minimum inhibitory concentration (MIC) values in ascorbic acid and GSH protection tests, the latter increasing up to 64-fold of the MIC. Using nuclear magnetic resonance, we demonstrated interaction of L10 and GSH. At concentrations of 4.0 and 8.0 μg/mL, significant changes were observed in ROS production and mitochondrial membrane potential. The cell death profile showed characteristics of initial apoptosis at inhibitory concentrations (4.0 μg/mL). Transmission electron microscopy data corroborated these results and indicated signs of apoptosis, damage to plasma and nuclear membranes, and to mitochondria. Taken together, these results suggest a possible mechanism of action for L10 antifungal activity, involving changes in cellular redox balance, ROS production, and apoptosis-compatible cellular changes.
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Affiliation(s)
- Luiz Nascimento de Araújo Neto
- Medical Mycology Laboratory, Federal University of Pernambuco, 50670-901, Brazil; Chemistry Laboratory and Therapeutic Innovation, Federal University of Pernambuco, 50670-901, Brazil
| | | | | | - Edson Rubhens de Souza
- Chemistry Laboratory and Therapeutic Innovation, Federal University of Pernambuco, 50670-901, Brazil
| | | | | | | | - Fábio André Brayner
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | - Luiz Carlos Alves
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | - Jana Messias Sandes
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | | | - Maria Carolina Accioly Brelaz de Castro
- Laboratory of Immunology IAM/ FIOCRUZ, Federal University of Pernambuco, 50670-901, Brazil; Laboratory of Parasitology, Academic Center of Vitória - Federal University of Pernambuco, 55608-680, Brazil
| | - Rejane Pereira Neves
- Medical Mycology Laboratory, Federal University of Pernambuco, 50670-901, Brazil.
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E Silva RDF, de Oliveira BC, da Silva AA, Brelaz de Castro MCA, Ferreira LFGR, Hernandes MZ, de Brito MEF, de-Melo-Neto OP, Rezende AM, Pereira VRA. Immunogenicity of Potential CD4 + and CD8 + T Cell Epitopes Derived From the Proteome of Leishmania braziliensis. Front Immunol 2020; 10:3145. [PMID: 32117204 PMCID: PMC7033680 DOI: 10.3389/fimmu.2019.03145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 12/27/2019] [Indexed: 11/14/2022] Open
Abstract
Background: A safe and effective vaccine against human leishmaniasis still requires the identification of better antigens for immunization and adequate models to evaluate the immune response. To support vaccine development, this work tested the immunogenicity of 10 different peptides derived from the proteome of Leishmania braziliensis, which were selected by their in silico affinity to MHC complexes. Research design and Methods: Comparative cell proliferation assays were performed by culturing, in the presence of each peptide, PBMC cells from subclinical subjects (SC), cutaneous leishmaniasis patients with active disease (AD), post-treatment (PT) individuals, and healthy controls. Culture supernatants were then used for Th1, Th2, and Th17 cytokine measurements. Cells from selected PT samples were also used to assess the expression, by T cells, of the T-bet Th1 transcription factor. Results: A robust cell proliferation was observed for the SC group, for all the tested peptides. The levels of Th1 cytokines were peptide-dependent and had substantial variations between groups, where, for instance, IFN-γ and TNF levels were some of the highest, particularly on PT cultures, when compared to IL-2. On the other hand, Th2 cytokines displayed much less variation. IL-6 was the most abundant among all the evaluated cytokines while IL-4 and IL-10 could be found at much lower concentrations. IL-17 was also detected with variations in SC and AD groups. T-bet was up-regulated in CD4+ and CD8+ T cells from the PT group after stimulation with all peptides. Conclusions: The peptide epitopes can differentially stimulate cells from SC, AD, and PT individuals, leading to distinct immune responses.
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Affiliation(s)
- Rafael de Freitas E Silva
- Department of Natural Sciences, Universidade de Pernambuco, Garanhuns, Brazil.,Department of Immunology, Fundação Oswaldo Cruz, Recife, Brazil
| | | | | | - Maria Carolina Accioly Brelaz de Castro
- Department of Immunology, Fundação Oswaldo Cruz, Recife, Brazil.,Parasitology Laboratory, Universidade Federal de Pernambuco, Vitória de Santo Antão, Brazil
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Ribeiro AG, Almeida SMVD, de Oliveira JF, Souza TRCDL, Santos KLD, Albuquerque APDB, Nogueira MCDBL, Carvalho Junior LBD, Moura ROD, da Silva AC, Pereira VRA, Castro MCABD, Lima MDCAD. Novel 4-quinoline-thiosemicarbazone derivatives: Synthesis, antiproliferative activity, in vitro and in silico biomacromolecule interaction studies and topoisomerase inhibition. Eur J Med Chem 2019; 182:111592. [DOI: 10.1016/j.ejmech.2019.111592] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/07/2019] [Accepted: 08/05/2019] [Indexed: 12/16/2022]
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/06/2019] [Indexed: 12/16/2022]
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9
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de Souza VCA, Moura DMN, de Castro MCAB, Bozza PT, de Almeida Paiva L, Fernandes CJB, Leão RLC, Lucena JP, de Araujo RE, de Melo Silva AJ, Figueiredo RCBQ, de Oliveira SA. Adoptive Transfer of Bone Marrow-Derived Monocytes Ameliorates Schistosoma mansoni -Induced Liver Fibrosis in Mice. Sci Rep 2019; 9:6434. [PMID: 31015492 PMCID: PMC6478942 DOI: 10.1038/s41598-019-42703-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 04/04/2019] [Indexed: 12/19/2022] Open
Abstract
Liver diseases are a major health problem worldwide leading to high mortality rates and causing a considerable economic burden in many countries. Cellular therapies as potential treatments for liver diseases have proven beneficial in most of the conditions. In recent years, studies involving therapy with bone marrow cells have been implemented to promote liver regeneration and to reduce hepatic fibrosis, however identifying the cell population present in the bone marrow that is responsible for hepatic improvement after therapy is still necessary. The aim of the present study was the evaluation of the therapeutic efficacy of monocytes obtained from bone marrow in fibrosis resulting from S. mansoni infection in C57BL/6 mice. Monocytes were isolated by immunomagnetic separation and administered to the infected animals. The effects of treatment were evaluated through morphometric, biochemical, immunological and molecular analyzes. Monocyte therapy promoted reduction of liver fibrosis induced by S. mansoni infection, associated with a decrease in production of inflammatory and pro-fibrogenic mediators. In addition, monocyte infusion caused downregulation of factors associated with the M1 activation profile, as well as upregulation of M2reg markers. The findings altogether reinforce the hypothesis that the predominance of M2reg macrophages, producers of immunosuppressive cytokines, may favor the improvement of hepatic fibrosis in a preclinical model, through fibrous tissue remodeling, modulation of the inflammatory response and fibrogenesis.
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Affiliation(s)
| | | | | | - Patrícia Torres Bozza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ligia de Almeida Paiva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
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10
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de Souza VCA, Pereira TA, Teixeira VW, Carvalho H, de Castro MCAB, D’assunção CG, de Barros AF, Carvalho CL, de Lorena VMB, Costa VMA, Teixeira ÁAC, Figueiredo RCBQ, de Oliveira SA. Bone marrow-derived monocyte infusion improves hepatic fibrosis by decreasing osteopontin, TGF-β1, IL-13 and oxidative stress. World J Gastroenterol 2017; 23:5146-5157. [PMID: 28811709 PMCID: PMC5537181 DOI: 10.3748/wjg.v23.i28.5146] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/25/2017] [Accepted: 04/12/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the therapeutic effects of bone marrow-derived CD11b+CD14+ monocytes in a murine model of chronic liver damage.
METHODS Chronic liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry, biochemical assessment, immunohistochemistry and enzyme-linked immunosorbent assay.
RESULTS CD11b+CD14+ monocyte therapy significantly reduced liver fibrosis and increased hepatic glutathione levels. Levels of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-6 and IL-1β, in addition to pro-fibrotic factors, such as IL-13, transforming growth factor-β1 and tissue inhibitor of metalloproteinase-1 also decreased, while IL-10 and matrix metalloproteinase-9 increased in the monocyte-treated group. CD11b+CD14+ monocyte transplantation caused significant changes in the hepatic expression of α-smooth muscle actin and osteopontin.
CONCLUSION Monocyte therapy is capable of bringing about improvement of liver fibrosis by reducing oxidative stress and inflammation, as well as increasing anti-fibrogenic factors.
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Aliança ASDS, Oliveira AR, Feitosa APS, Ribeiro KRC, de Castro MCAB, Leite ACL, Alves LC, Brayner FA. In vitro evaluation of cytotoxicity and leishmanicidal activity of phthalimido-thiazole derivatives. Eur J Pharm Sci 2017; 105:1-10. [PMID: 28478133 DOI: 10.1016/j.ejps.2017.05.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/07/2017] [Accepted: 05/03/2017] [Indexed: 10/19/2022]
Abstract
It is estimated that the worldwide prevalence of leishmaniasis is around 12 million individuals in 80 countries, with 400,000new cases per year. In the search for new leishmanicidal agents, the hybrid phthalimido-thiazoles have been identified as an important scaffold for drug design and discovery. The present study thus reports the in vitro activity of a series of phthalimido-thiazole derivatives. Cytotoxicity against a strain of L. infantum, Vero cells, J774 macrophages and peritoneal macrophages was evaluated, as well as nitric oxide (NO) production. Activity against amastigote and promastigote forms of L. infantum and microscopic changes in the parasite and intracellular targets of the parasite were achieved. The results show that the compounds arising from hybridization of phthalimide and 1,3-thiazole exhibit promising leishmanicidal activity. Compounds 2j and 2m were the most potent of the series tested and the parasites treated with these compounds exhibited ultrastructural changes, such as cell body shrinkage, loss of cellular membrane integrity, vacuolization of cytoplasm, membrane profiles surrounding organelles and swelling of mitochondria. The data showed that these compounds reduced the survival of intracellular amastigotes and presented low toxicity for mammalian cells. The compounds produced increased NO production compared to untreated cells in non-infected macrophages. Treated promastigote forms showed an increase in the number of cells stained with propidium iodide. The compounds brought about significant changes in mitochondrial membrane potential. According to the present study, phthalimido-thiazole compounds exhibit leishmanicidal activity and could be used to develop novel antileishmaniasis drugs and explore potential molecular targets.
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Affiliation(s)
- Amanda Silva Dos Santos Aliança
- Laboratório de Imunologia Keizo Asami-LIKA/UFPE and Laboratório de Biologia Celular e Molecular, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil; Post Graduate Program in Tropical Medicine (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, PE CEP: 50670-901, Brazil
| | - Arsênio Rodrigues Oliveira
- Laboratório de Planejamento em Química Medicinal, Departamento de Ciências Farmacêuticas, Post Graduate Program in Pharmaceutical Sciences (UFPE), Centro de Ciências da Saúde, Universidade Federal de Pernambuco, Recife, PE CEP: 50740-520, Brazil.
| | - Ana Paula Sampaio Feitosa
- Laboratório de Imunologia Keizo Asami-LIKA/UFPE and Laboratório de Biologia Celular e Molecular, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil
| | - Karla Raíza Cardoso Ribeiro
- Laboratório de Imunologia Keizo Asami-LIKA/UFPE and Laboratório de Biologia Celular e Molecular, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil
| | - Maria Carolina Accioly Brelaz de Castro
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil; Laboratório de Parasitologia, Universidade Federal de Pernambuco-CAV, Vitória de Santo Antão, PE CEP: 55608-680, Brazil
| | - Ana Cristina Lima Leite
- Laboratório de Planejamento em Química Medicinal, Departamento de Ciências Farmacêuticas, Post Graduate Program in Pharmaceutical Sciences (UFPE), Centro de Ciências da Saúde, Universidade Federal de Pernambuco, Recife, PE CEP: 50740-520, Brazil
| | - Luiz Carlos Alves
- Laboratório de Imunologia Keizo Asami-LIKA/UFPE and Laboratório de Biologia Celular e Molecular, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil
| | - Fábio André Brayner
- Laboratório de Imunologia Keizo Asami-LIKA/UFPE and Laboratório de Biologia Celular e Molecular, Centro de Pesquisas Aggeu Magalhães/Fundação Oswaldo Cruz-CPqAM/FIOCRUZ, Recife, PE CEP: 50670-420, Brazil; Post Graduate Program in Tropical Medicine (UFPE), Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, PE CEP: 50670-901, Brazil
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Gomes PATDM, Oliveira AR, Cardoso MVDO, Santiago EDF, Barbosa MDO, de Siqueira LRP, Moreira DRM, Bastos TM, Brayner FA, Soares MBP, Mendes APDO, de Castro MCAB, Pereira VRA, Leite ACL. Phthalimido-thiazoles as building blocks and their effects on the growth and morphology of Trypanosoma cruzi. Eur J Med Chem 2016; 111:46-57. [DOI: 10.1016/j.ejmech.2016.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/21/2015] [Accepted: 01/09/2016] [Indexed: 11/28/2022]
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Espíndola JWP, Cardoso MVDO, Filho GBDO, Oliveira e Silva DA, Moreira DRM, Bastos TM, Simone CAD, Soares MBP, Villela FS, Ferreira RS, Castro MCABD, Pereira VRA, Murta SMF, Sales Junior PA, Romanha AJ, Leite ACL. Synthesis and structure–activity relationship study of a new series of antiparasitic aryloxyl thiosemicarbazones inhibiting Trypanosoma cruzi cruzain. Eur J Med Chem 2015; 101:818-35. [DOI: 10.1016/j.ejmech.2015.06.048] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 11/28/2022]
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de Morais NG, da Costa TB, Pedrosa ALF, de Castro MCAB, da Gonçalves de Albuquerque SC, Pereira VRA, de Paiva Cavalcanti M, de Castro CMMB. Effect of neonatal malnutrition on expression of nitric oxide synthase enzyme, production of free radicals and in vitro viability of alveolar macrophages infected with methicillin-sensitive and methicillin-resistant Staphylococcus aureus. Eur J Nutr 2015; 55:403-11. [PMID: 25701093 DOI: 10.1007/s00394-015-0861-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 02/12/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Evaluate the effects of neonatal malnutrition on the microbicidal response and viability of in vitro macrophages infected with Staphylococcus aureus sensitive/resistant to methicillin. METHODS Male Wistar rats (n = 24) were divided into two distinct groups: nourished (rats breast-fed by mothers undergoing diet with 17% casein) and malnourished (rats breast-fed by mothers undergoing diet with 8% casein). Macrophages were recovered after surgical tracheostomy procedure by collecting bronchoalveolar lavage. Four systems were established: negative control, composed only by phagocytes; positive control, macrophages plus lipopolysaccharide; and two test systems, macrophages plus Staphylococcus aureus sensitive and resistant to methicillin. Plates were incubated at 37 °C for 24 h. After this period, tests for the analysis of cell viability and microbicidal response were performed. In the statistical analysis, the Student's t and ANOVA tests were used, accepting p < 0.05. RESULTS The neonatal malnutrition impaired the animals' body weight. There was a lower expression of the inducible nitric oxide enzyme (iNOS), nitric oxide production, and viability of macrophages infected with methicillin-resistant Staphylococcus aureus. However, increased production of superoxide anion in the malnourished group was detected. CONCLUSION Neonatal malnutrition focusing on critical periods of development promoted lower expression of iNOS, nitric oxide production, cell viability, and exacerbated reactive oxygen species production. The high levels of reactive oxygen species may favor the onset of serious and systemic infections with fatal outcome if associated with methicillin-resistant Staphylococcus aureus.
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Affiliation(s)
- Natália Gomes de Morais
- Health Sciences Center, Federal University of São Francisco Valley (UNIVASF), University Campus, Paulo Afonso, BA, 48608-170, Brazil. .,Laboratório de Imunopatologia Keizo Asami da Universidade Federal de Pernambuco (LIKA-UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil.
| | - Thacianna Barreto da Costa
- Department of Tropical Medicine, Federal University of Pernambuco (UFPE), University Campus, University Town, Recife, PE, 50670-420, Brazil
| | - Amanda Lúcia Farias Pedrosa
- Scientific Initiation of the Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, University Campus, University Town, Recife, PE, 50670-420, Brazil
| | | | | | - Valéria Rêgo Alves Pereira
- The Laboratory of Immunogenetics, Aggeu Magalhães Research Center, Oswaldo Cruz Foundation - CPqAM/FIOCRUZ, Campus UFPE, Recife, Brazil
| | - Milena de Paiva Cavalcanti
- The Laboratory of Immunoparasitology, Aggeu Magalhães Research Center, Oswaldo Cruz Foundation - CPqAM/FIOCRUZ, Campus UFPE, Recife, Brazil
| | - Célia Maria Machado Barbosa de Castro
- Department of Tropical Medicine, Health Sciences Center, Federal University of Pernambuco, University Campus, University Town, Recife, PE, 50670-420, Brazil
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Silva LCND, Alves NMP, Castro MCABD, Pereira VRA, Paz NVND, Coelho LCBB, Figueiredo RCBQD, Correia MTDS. Immunomodulatory effects of pCramoll and rCramoll on peritoneal exudate cells (PECs) infected and non-infected with Staphylococcus aureus. Int J Biol Macromol 2015; 72:848-54. [DOI: 10.1016/j.ijbiomac.2014.09.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/25/2014] [Accepted: 09/30/2014] [Indexed: 01/16/2023]
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Cardoso MVDO, de Siqueira LRP, da Silva EB, Costa LB, Hernandes MZ, Rabello MM, Ferreira RS, da Cruz LF, Moreira DRM, Pereira VRA, de Castro MCAB, Bernhardt PV, Leite ACL. 2-Pyridyl thiazoles as novel anti-Trypanosoma cruzi agents: structural design, synthesis and pharmacological evaluation. Eur J Med Chem 2014; 86:48-59. [PMID: 25147146 DOI: 10.1016/j.ejmech.2014.08.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 08/01/2014] [Accepted: 08/05/2014] [Indexed: 11/30/2022]
Abstract
The present work reports on the synthesis, anti-Trypanosoma cruzi activities and docking studies of a novel series of 2-(pyridin-2-yl)-1,3-thiazoles derived from 2-pyridine thiosemicarbazone. The majority of these compounds are potent cruzain inhibitors and showed excellent inhibition on the trypomastigote form of the parasite, and the resulting structure-activity relationships are discussed. Together, these data present a novel series of thiazolyl hydrazones with potential effects against Chagas disease and they could be important leads in continuing development against Chagas disease.
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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
| | - Lívia Bandeira Costa
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520 Recife, PE, Brazil
| | - Marcelo Zaldini Hernandes
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520 Recife, PE, Brazil
| | - Marcelo Montenegro Rabello
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-520 Recife, PE, Brazil
| | - Rafaela Salgado Ferreira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Luana Faria da Cruz
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, CEP 31270-901 Belo Horizonte, MG, Brazil
| | | | | | | | - Paul V Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
| | - 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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de Oliveira AP, de Castro MCAB, de Almeida AF, Souza MDA, de Oliveira BC, Reis LC, Goto H, de Brito MEF, Celeste BJ, Martins-Filho OA, Pereira VRA. Comparison of flow cytometry and indirect immunofluorescence assay in the diagnosis and cure criterion after therapy of American tegumentary leishmaniasis by anti-live Leishmania (Viannia) braziliensis immunoglobulin G. J Immunol Methods 2012; 387:245-53. [PMID: 23142460 DOI: 10.1016/j.jim.2012.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/12/2012] [Accepted: 11/01/2012] [Indexed: 10/27/2022]
Abstract
The aim of this study was to compare the techniques of indirect immunofluorescence assay (IFA) and flow cytometry to clinical and laboratorial evaluation of patients before and after clinical cure and to evaluate the applicability of flow cytometry in post-therapeutic monitoring of patients with American tegumentary leishmaniasis (ATL). Sera from 14 patients before treatment (BT), 13 patients 1 year after treatment (AT), 10 patients 2 and 5 years AT were evaluated. The results from flow cytometry were expressed as levels of IgG reactivity, based on the percentage of positive fluorescent parasites (PPFP). The 1:256 sample dilution allowed us to differentiate individuals BT and AT. Comparative analysis of IFA and flow cytometry by ROC (receiver operating characteristic curve) showed, respectively, AUC (area under curve)=0.8 (95% CI=0.64-0.89) and AUC=0.90 (95% CI=0.75-0.95), demonstrating that the flow cytometry had equivalent accuracy. Our data demonstrated that 20% was the best cut-off point identified by the ROC curve for the flow cytometry assay. This test showed a sensitivity of 86% and specificity of 77% while the IFA had a sensitivity of 78% and specificity of 85%. The after-treatment screening, through comparative analysis of the technique performance indexes, 1, 2 and 5 years AT, showed an equal performance of the flow cytometry compared with the IFA. However, flow cytometry shows to be a better diagnostic alternative when applied to the study of ATL in the cure criterion. The information obtained in this work opens perspectives to monitor cure after treatment of ATL.
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de Melo CML, de Castro MCAB, de Oliveira AP, Gomes FOS, Pereira VRA, Correia MTS, Coelho LCBB, Paiva PMG. Immunomodulatory response of Cramoll 1,4 lectin on experimental lymphocytes. Phytother Res 2010; 24:1631-6. [DOI: 10.1002/ptr.3156] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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