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Valverde TM, dos Santos VMR, Viana PIM, Costa GMJ, de Goes AM, Sousa LRD, Xavier VF, Vieira PMDA, de Lima Silva D, Domingues RZ, Ferreira JMDF, Andrade ÂL. Novel Fe 3O 4 Nanoparticles with Bioactive Glass-Naproxen Coating: Synthesis, Characterization, and In Vitro Evaluation of Bioactivity. Int J Mol Sci 2024; 25:4270. [PMID: 38673856 PMCID: PMC11049812 DOI: 10.3390/ijms25084270] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Immune response to biomaterials, which is intimately related to their surface properties, can produce chronic inflammation and fibrosis, leading to implant failure. This study investigated the development of magnetic nanoparticles coated with silica and incorporating the anti-inflammatory drug naproxen, aimed at multifunctional biomedical applications. The synthesized nanoparticles were characterized using various techniques that confirmed the presence of magnetite and the formation of a silica-rich bioactive glass (BG) layer. In vitro studies demonstrated that the nanoparticles exhibited bioactive properties, forming an apatite surface layer when immersed in simulated body fluid, and biocompatibility with bone cells, with good viability and alkaline phosphatase activity. Naproxen, either free or encapsulated, reduced nitric oxide production, an inflammatory marker, while the BG coating alone did not show anti-inflammatory effects in this study. Overall, the magnetic nanoparticles coated with BG and naproxen showed promise for biomedical applications, especially anti-inflammatory activity in macrophages and in the bone field, due to their biocompatibility, bioactivity, and osteogenic potential.
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Affiliation(s)
- Thalita Marcolan Valverde
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil; (T.M.V.); (P.I.M.V.); (G.M.J.C.)
| | - Viviane Martins Rebello dos Santos
- Departamento de Química, Instituto de Ciências Exatas e Biológicas (ICEB), Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil; (V.M.R.d.S.); (D.d.L.S.)
| | - Pedro Igor Macário Viana
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil; (T.M.V.); (P.I.M.V.); (G.M.J.C.)
| | - Guilherme Mattos Jardim Costa
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil; (T.M.V.); (P.I.M.V.); (G.M.J.C.)
| | - Alfredo Miranda de Goes
- Departamento de Patologia Geral, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil;
| | - Lucas Resende Dutra Sousa
- Laboratório de Fitotecnologia, Escola de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil; (L.R.D.S.); (V.F.X.)
| | - Viviane Flores Xavier
- Laboratório de Fitotecnologia, Escola de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil; (L.R.D.S.); (V.F.X.)
| | - Paula Melo de Abreu Vieira
- Laboratório de Morfopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil;
| | - Daniel de Lima Silva
- Departamento de Química, Instituto de Ciências Exatas e Biológicas (ICEB), Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil; (V.M.R.d.S.); (D.d.L.S.)
| | - Rosana Zacarias Domingues
- Departamento de Química, Instituto de Ciências Exatas (ICEx), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil;
| | - José Maria da Fonte Ferreira
- Departamento de Engenharia de Materiais e Cerâmica, CICECO, Universidade de Aveiro (UA), 3810193 Aveiro, Portugal;
| | - Ângela Leão Andrade
- Departamento de Química, Instituto de Ciências Exatas e Biológicas (ICEB), Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil; (V.M.R.d.S.); (D.d.L.S.)
- Departamento de Engenharia de Materiais e Cerâmica, CICECO, Universidade de Aveiro (UA), 3810193 Aveiro, Portugal;
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Ferreira FM, Gomes SV, Carvalho LCF, de Alcantara AC, da Cruz Castro ML, Perucci LO, Pio S, Talvani A, de Abreu Vieira PM, Calsavara AJC, Costa DC. Potential of piperine for neuroprotection in sepsis-associated encephalopathy. Life Sci 2024; 337:122353. [PMID: 38104862 DOI: 10.1016/j.lfs.2023.122353] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
AIMS Sepsis-associated encephalopathy (SAE) is a common complication that increases mortality and leads to long-term cognitive impairment in sepsis survivors. However, no specific or effective therapy has been identified for this complication. Piperine is an alkaloid known for its anti-inflammatory, antioxidant, and neuroprotective properties, which are important characteristics for treatment of SAE. The objective of this study was to evaluate the neuroprotective effect of piperine on SAE in C57BL/6 mice that underwent cecum ligation and perforation surgery (CLP). MAIN METHODS C57BL/6 male mice were randomly assigned to groups that underwent SHAM surgery or CLP. Mice in the CLP group were treated with piperine at doses of 20 or 40 mg/kg for short- (5 days) or long-term (10 days) periods after CLP. KEY FINDINGS Our results revealed that untreated septic animals exhibited increased concentrations of IL-6, TNF, VEGF, MMP-9, TBARS, and NLRP3, and decreased levels of BDNF, sulfhydryl groups, and catalase in the short term. Additionally, the levels of carbonylated proteins and degenerated neuronal cells were increased at both time points. Furthermore, short-term and visuospatial memories were impaired. Piperine treatment reduced MMP-9 activity in the short term and decreased the levels of carbonylated proteins and degenerated neuronal cells in the long term. It also lowered IL-6 and TBARS levels at both time points evaluated. Moreover, piperine increased short-term catalase and long-term BDNF factor levels and improved memory at both time points. SIGNIFICANCE In conclusion, our data demonstrate that piperine exerts a neuroprotective effect on SAE in animals that have undergone CLP.
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Affiliation(s)
- Flavia Monteiro Ferreira
- Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Sttefany Viana Gomes
- Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Luana Cristina Faria Carvalho
- Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Ana Carolina de Alcantara
- Laboratory of Cognition and Health (LACOS), School of Medicine, Department of Pediatric and Adult Clinics (DECPA), Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Maria Laura da Cruz Castro
- Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Luiza Oliveira Perucci
- Laboratory of Immunobiology of Inflammation, Department of Biological Sciences (DECBI), Graduate Program in Health and Nutrition, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Sirlaine Pio
- Laboratory of Immunobiology of Inflammation, Department of Biological Sciences (DECBI), Graduate Program in Health and Nutrition, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - André Talvani
- Laboratory of Immunobiology of Inflammation, Department of Biological Sciences (DECBI), Graduate Program in Health and Nutrition, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Morphopathology Laboratory, Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Allan Jefferson Cruz Calsavara
- Laboratory of Cognition and Health (LACOS), School of Medicine, Department of Pediatric and Adult Clinics (DECPA), Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil
| | - Daniela Caldeira Costa
- Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Graduate Program in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto, Minas Gerais, Brazil.
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Sousa LRD, Amparo TR, de Souza GHB, Ferraz AT, Fonseca KDS, de Azevedo AS, do Nascimento AM, Andrade ÂL, Seibert JB, Valverde TM, Braga SFP, Vieira PMDA, dos Santos VMR. Anti- Trypanosoma cruzi Potential of Vestitol Isolated from Lyophilized Red Propolis. Molecules 2023; 28:7812. [PMID: 38067542 PMCID: PMC10708512 DOI: 10.3390/molecules28237812] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Chagas disease (CD) is a worldwide public health problem, and the drugs available for its treatment have severe limitations. Red propolis is a natural extract known for its high content of phenolic compounds and for having activity against T. cruzi. The aim of this study was to investigate the trypanocidal potential of red propolis to isolate, identify, and indicate the mode of action of the bioactive compounds. The results revealed that the total phenolic content was 15.4 mg GAE/g, and flavonoids were 7.2 mg QE/g. The extract was fractionated through liquid-liquid partitioning, and the trypanocidal potential of the samples was evaluated using the epimastigote forms of the Y strain of T. cruzi. In this process, one compound was characterized by MS, 1H, and 13C NMR and identified as vestitol. Cytotoxicity was evaluated employing MRC-5 fibroblasts and H9C2 cardiomyocytes, showing cytotoxic concentrations above 15.62 μg/mL and 31.25 μg/mL, respectively. In silico analyses were applied, and the data suggested that the substance had a membrane-permeation-enhancing effect, which was confirmed through an in vitro assay. Finally, a molecular docking analysis revealed a higher affinity of vestitol with farnesyl diphosphate synthase (FPPS). The identified isoflavan appears to be a promising lead compound for further development to treat Chagas disease.
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Affiliation(s)
- Lucas Resende Dutra Sousa
- Phytotechnology Laboratory, School of Pharmacy, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (L.R.D.S.); (T.R.A.); (G.H.B.d.S.)
| | - Tatiane Roquete Amparo
- Phytotechnology Laboratory, School of Pharmacy, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (L.R.D.S.); (T.R.A.); (G.H.B.d.S.)
| | - Gustavo Henrique Bianco de Souza
- Phytotechnology Laboratory, School of Pharmacy, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (L.R.D.S.); (T.R.A.); (G.H.B.d.S.)
| | - Aline Tonhela Ferraz
- Morphopathology Laboratory, Center for Biological Sciences Research, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.T.F.); (K.d.S.F.)
| | - Kátia da Silva Fonseca
- Morphopathology Laboratory, Center for Biological Sciences Research, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.T.F.); (K.d.S.F.)
| | - Amanda Scofield de Azevedo
- Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.S.d.A.); (A.M.d.N.); (Â.L.A.)
| | - Andréa Mendes do Nascimento
- Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.S.d.A.); (A.M.d.N.); (Â.L.A.)
| | - Ângela Leão Andrade
- Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.S.d.A.); (A.M.d.N.); (Â.L.A.)
| | - Janaína Brandão Seibert
- Natural Products Laboratory, Department of Chemistry, Federal University of São Carlos, Rod. Washington Luiz, Sao Carlos 13565-905, SP, Brazil;
| | - Thalita Marcolan Valverde
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil;
| | - Saulo Fehelberg Pinto Braga
- Medicinal Chemistry and Bioassays Laboratory, School of Pharmacy, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil;
| | - Paula Melo de Abreu Vieira
- Morphopathology Laboratory, Center for Biological Sciences Research, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.T.F.); (K.d.S.F.)
| | - Viviane Martins Rebello dos Santos
- Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil; (A.S.d.A.); (A.M.d.N.); (Â.L.A.)
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Valverde TM, Soares BNGDS, do Nascimento AM, Andrade ÂL, Sousa LRD, Vieira PMDA, Santos VR, Seibert JB, de Almeida TCS, Rodrigues CF, de Oliveira SRM, Martins FDS, Júnior JGF, dos Santos VMR. Anti-Inflammatory, Antimicrobial, Antioxidant and Photoprotective Investigation of Red Propolis Extract as Sunscreen Formulation in Polawax Cream. Int J Mol Sci 2023; 24:ijms24065112. [PMID: 36982196 PMCID: PMC10049182 DOI: 10.3390/ijms24065112] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Many activities have been described for propolis, including, antiviral, antibacterial, antifungal, anti-inflammatory, immunoregulatory, antioxidant and wound healing properties. Recently, propolis has been highlighted due to its potential application in the pharmaceutical and cosmetic industries, motivating a better understanding of its antioxidant and anti-inflammatory activities. Propolis and its main polyphenolic compounds presented high antioxidant activity, and effectiveness as broad spectrum UVB and UVA photoprotection sunscreens. Through a qualitative phytochemical screening, the ethanolic red propolis extracts (EEPV) (70% at room temperature and 70% at a hot temperature) presented a positive result for flavonoids and terpenoids. It presented an antioxidant activity for reducing 50% of DPPH of 17 and 12 μg/mL for extraction at room temperature and at a hot temperature, respectively. The UPLC-QTOF-MS/MS analysis allowed the annotation of 40 substances for EEPV-Heated and 42 substances for EEPV-Room Temperature. The IC50 results of the ABTS scavenging activity was 4.7 μg/mL for both extractions, at room temperature and at a hot temperature. Additionally, we also evaluated the cytotoxic profile of propolis extracts against macrophage (RAW 264.7 cells) and keratinocytes (HaCaT cells), which showed non-cytotoxic doses in cell viability assays even after a long period of exposure. In addition, propolis extracts showed antibacterial activity for Gram-positive bacteria (Staphylococcus aureus and Staphylococcus epidermidis), demonstrating potential biological activity for the creation of formulations aimed at disease control and prevention.
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Affiliation(s)
- Thalita Marcolan Valverde
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | | | | | - Ângela Leão Andrade
- Department of Chemistry, Federal University of Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Lucas Resende Dutra Sousa
- Laboratory of Morphopathology, Center for Research in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Morphopathology, Center for Research in Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Vagner Rodrigues Santos
- Laboratory of Microbiology and Biomaterials, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Janaína Brandão Seibert
- Natural Products Laboratory, Department of Chemistry, Federal University of São Carlos (UFSCAR), São Carlos 13565-905, SP, Brazil
| | | | - Caio Fabrini Rodrigues
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | | | - Flaviano dos Santos Martins
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
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Carvalho LCF, Ferreira FM, Dias BV, Azevedo DCD, de Souza GHB, Milagre MM, de Lana M, Vieira PMDA, Carneiro CM, Paula-Gomes SD, Cangussu SD, Costa DC. Silymarin inhibits the lipogenic pathway and reduces worsening of non-alcoholic fatty liver disease (NAFLD) in mice. Arch Physiol Biochem 2022:1-15. [PMID: 36328030 DOI: 10.1080/13813455.2022.2138445] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/17/2022] [Accepted: 09/08/2022] [Indexed: 11/06/2022]
Abstract
CONTEXT The role of silymarin in hepatic lipid dysfunction and its possible mechanisms of action were investigated. OBJECTIVE To evaluate the effects of silymarin on hepatic and metabolic profiles in mice fed with 30% fructose for 8 weeks. METHODS We evaluated the antioxidant profile of silymarin; mice consumed 30% fructose and were treated with silymarin (120 mg/kg/day or 240 mg/kg/day). We performed biochemical, redox status, and histopathological assays. RT-qPCR was performed to detect ACC-1, ACC-2, FAS, and CS expression, and western blotting to detect PGC-1α levels. RESULTS Silymarin contains high levels of phenolic compounds and flavonoids and exhibited significant antioxidant capacity in vitro. In vivo, the fructose-fed groups showed increased levels of AST, ALT, SOD/CAT, TBARS, hepatic TG, and cholesterol, as well as hypertriglyceridaemia, hypercholesterolaemia, and increased ACC-1 and FAS. Silymarin treatment reduced these parameters and increased mRNA levels and activity of hepatic citrate synthase. CONCLUSIONS These results suggest that silymarin reduces worsening of NAFLD.
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Affiliation(s)
| | | | - Bruna Vidal Dias
- Laboratório de Bioquímica Metabólica, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | | | | | - Matheus Marque Milagre
- Laboratório Doença de Chagas, Universidade Federal de Ouro Preto, UFOP, Ouro Preto, Brazil
| | - Marta de Lana
- Laboratório Doença de Chagas, Universidade Federal de Ouro Preto, UFOP, Ouro Preto, Brazil
| | | | | | - Sílvia de Paula-Gomes
- Laboratório de Bioquímica e Biologia Molecular, Universidade Federal de Ouro Preto, UFOP, Ouro Preto, Brazil
| | - Silvia Dantas Cangussu
- Laboratório de Fisiopatologia Experimental, Universidade Federal de Ouro Preto, UFOP, Ouro Preto, Brazil
| | - Daniela Caldeira Costa
- Laboratório de Bioquímica Metabólica, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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Reynaldo JR, Novack KM, Sousa LRD, Vieira PMDA, Amparo TR, de Souza GHB, Teixeira LFM, Barboza APM, Neves BRA, Alvarenga ME, Martins FT, dos Santos VMR. Evaluation of Anti- Candida albicans Activity and Release of Ketoconazole in PMMA-G-PEG 4000 Films. Int J Mol Sci 2022; 23:10775. [PMID: 36142698 PMCID: PMC9504905 DOI: 10.3390/ijms231810775] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Modified release systems depend on the selection of an appropriate agent capable of controlling the release of the drug, sustaining the therapeutic action over time, and/or releasing the drug at the level of a particular tissue or target organ. Polyethylene glycol 4000 (PEG 4000) is commonly employed in drug release formulations while polymethyl methacrylate (PMMA) is non-toxic and has a good solubility in organic solvents. This study aimed at the incorporation of ketoconazole in PMMA-g-PEG 4000 and its derivatives, thus evaluating its release profile and anti-Candida albicans and cytotoxic activities. Ketoconazole was characterized and incorporated into the copolymers. The ketoconazole incorporated in the copolymer and its derivatives showed an immediate release profile. All copolymers with ketoconazole showed activity against Candida albicans and were non-toxic to human cells in the entire concentration tested.
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Affiliation(s)
- Juliana Ribeiro Reynaldo
- Department of Chemistry, Federal University of Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Kátia Monteiro Novack
- Department of Chemistry, Federal University of Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Lucas Resende Dutra Sousa
- Laboratory of Morphopathology, Center for Research in Biological Sciences, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Morphopathology, Center for Research in Biological Sciences, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | - Tatiane Roquete Amparo
- Postgraduate Program in Pharmaceutical Science, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | - Gustavo Henrique Bianco de Souza
- Postgraduate Program in Pharmaceutical Science, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | - Luiz Fernando Medeiros Teixeira
- Postgraduate Program in Pharmaceutical Science, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | - Ana Paula Moreira Barboza
- Physics Department, Federal University of Ouro Preto (UFOP), Morro do Cruzeiro Campus, Ouro Preto 35400-000, MG, Brazil
| | | | - Meiry Edivirges Alvarenga
- Institute of Chemistry, Federal University of Goiás (UFG), Samambaia Campus, Goiânia 74690-900, GO, Brazil
| | - Felipe Terra Martins
- Institute of Chemistry, Federal University of Goiás (UFG), Samambaia Campus, Goiânia 74690-900, GO, Brazil
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7
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Roatt BM, de Oliveira Cardoso JM, Reis LES, Moreira GJL, Gonçalves LC, de Souza Marques F, das Dores Moreira N, de Abreu Vieira PM, de Oliveira Aguiar-Soares RD, Giunchetti RC, Reis AB. LBMPL Vaccine Therapy Induces Progressive Organization of the Spleen Microarchitecture, Improved Th1 Adaptative Immune Response and Control of Parasitism in Leishmania infantum Naturally Infected Dogs. Pathogens 2022; 11:pathogens11090974. [PMID: 36145406 PMCID: PMC9501398 DOI: 10.3390/pathogens11090974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/06/2022] [Revised: 08/17/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
The spleen plays a central role in human and canine visceral leishmaniasis, where the activation of the immune response occurs in one of the tissues where Leishmania infantum reproduces. Therefore, this organ is both a target to understand the mechanisms involved in the parasite control and a parameter for assessing the therapeutic response. In this sense, this study aimed to evaluate the main histological, immunological and parasitological aspects in the spleen of symptomatic dogs naturally infected by L. infantum treated with the therapeutic vaccine LBMPL. For this, dogs were divided into four groups: dogs uninfected and untreated (NI group); L. infantum-infected dogs that were not treated (INT group); L. infantum-infected dogs that received treatment only with monophosphoryl lipid A adjuvant (MPL group); and L. infantum-infected dogs that received treatment with the vaccine composed by L. braziliensis promastigote proteins associated with MPL adjuvant (LBMPL group). Ninety days after the therapeutics protocol, the dogs were euthanized and the spleen was collected for the proposed evaluations. Our results demonstrated a reduction of hyperplasia of red pulp and follicular area of white pulp, increased mRNA expression of IFN-γ, TNF-α, IL-12 and iNOS, and decreased IL-10 and TGF-β1, and intense reduction of splenic parasitism in dogs treated with the LBMPL vaccine. These results possibly suggest that the pro-inflammatory environment promoted the progressive organization of the splenic architecture favoring the cellular activation, with consequent parasite control. Along with previously obtained data, our results propose the LBMPL vaccine as a possible treatment strategy for canine visceral leishmaniasis (CVL).
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Affiliation(s)
- Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
- Correspondence: ; Tel.: +55-31-3559-1694
| | - Jamille Mirelle de Oliveira Cardoso
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
- Grupo de Imunologia para de Medicina, Nutrição, Centro Universitário Presidente Tancredo de Almeida Neves—UNIPTAN, São João del Rei 36301-182, Minas Gerais, Brazil
| | - Levi Eduardo Soares Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Gabriel José Lucas Moreira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Letícia Captein Gonçalves
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Flávia de Souza Marques
- Laboratório de Morfopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Nádia das Dores Moreira
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil
| | - Paula Melo de Abreu Vieira
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
- Laboratório de Morfopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Rodrigo Dian de Oliveira Aguiar-Soares
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
| | - Rodolfo Cordeiro Giunchetti
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-013, Minas Gerais, Brazil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Minas Gerais, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, INCT-DT, Salvador 40015-970, Bahia, Brazil
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8
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Roquete Amparo T, Cherem Peixoto Silva A, Brandão Seibert J, dos Santos da Silva D, Martins Rebello dos Santos V, Melo de Abreu Vieira P, Célio Brandão G, Henrique Bianco de Souza G, Aloise Maneira Corrêa Santos B. In vitro and in silico investigation of the photoprotective and antioxidant potential of Protium spruceanum leaves and its main flavonoids. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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de Souza Marques F, Duarte THC, Xavier VF, Ferraz AT, das Mercês AC, Silva TVC, Mendes LC, da Fonseca Medeiros L, Perin L, Mathias FAS, da Silva Fonseca K, Nogueira-Paiva NC, Carneiro CM, de Abreu Vieira PM. Different infective forms trigger distinct lesions in the colon during experimental Chagas disease. Parasitol Res 2021; 120:3475-3486. [PMID: 34476583 DOI: 10.1007/s00436-021-07236-2] [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: 02/24/2021] [Accepted: 06/25/2021] [Indexed: 11/25/2022]
Abstract
With the control of vectorial transmission of Chagas disease caused by metacyclic trypomastigotes (MT) in endemic countries, other pathways of infection have become important. The infection caused by blood trypomastigotes (BT) is relevant in places where the blood transfusion and organ transplantation are poorly controlled. This study aimed to evaluate immunopathogenic parameters in the colon during the acute and chronic phases of experimental infection in Swiss mice infected with BT or MT forms of VL-10 strain of Trypanosoma cruzi. We have found that animals infected with MT forms presented lower survival rate, and higher tissue parasitism in the acute phase of the disease, which may be associated with the exacerbated activation of the immune system with the production of pro-inflammatory cytokines even in the chronic phase of infection. Taken together, these results can also be associated to the maintenance of the inflammatory process in chronic phase and an earlier denervation of myenteric plexus in colon. These findings emphasized the importance of the inoculum source and the strain, once different forms of different strains seem to promote distinct diseases.
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Affiliation(s)
- Flávia de Souza Marques
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Thays Helena Chaves Duarte
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Viviane Flores Xavier
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Aline Tonhela Ferraz
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Aline Coelho das Mercês
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Thaís Vieira Carvalho Silva
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Lívia Carvalho Mendes
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Luciana da Fonseca Medeiros
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Luísa Perin
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Fernando Augusto Siqueira Mathias
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Kátia da Silva Fonseca
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Nivia Carolina Nogueira-Paiva
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Department of Clinical Analysis, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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10
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Perin L, Pinto L, Balthazar Nardotto GH, da Silva Fonseca K, Oliveira Paiva B, Fernanda Rodrigues Bastos Mendes T, Molina I, Correa-Oliveira R, Melo de Abreu Vieira P, Martins Carneiro C. Population pharmacokinetics and biodistribution of benznidazole in mice. J Antimicrob Chemother 2021; 75:2213-2221. [PMID: 32356873 DOI: 10.1093/jac/dkaa130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/03/2020] [Accepted: 03/12/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To evaluate the population pharmacokinetics of different benznidazole treatment regimens and the drug's biodistribution in mice. METHODS Two hundred mice were divided into five groups according to benznidazole dosing regimens: (1) 100 mg/kg/day for 20 days; (2) 100 mg/kg/day for 40 days; (3) 200 mg/kg/day for 20 days; (4) 40 mg/kg/day for 20 days; or (5) 40 mg/kg/day for 40 days. The mice were euthanized and blood, heart, liver, colon and brain were collected. Samples were prepared by liquid-liquid extraction and analysed by HPLC-diode-array detection. The pharmacokinetic analysis of benznidazole was evaluated via non-linear mixed-effects modelling using the NONMEN program. RESULTS Our results demonstrate that mouse weight allometrically influences benznidazole clearance; the AUC curve and the highest plasma concentration are dose proportional; benznidazole does not influence its own metabolism; its tissue distribution is limited; and the standard treatment regimen for Chagas' disease in mice (100 mg/kg/day for 20 days) is inadequate from a pharmacokinetic standpoint, as are the other regimens tested in this study (100 mg/kg/day for 40 days, 200 mg/kg/day for 20 days and 40 mg/kg/day for 20 or 40 days). CONCLUSIONS Benznidazole reformulations that allow better tissue penetration and plasma and tissue exposure should be evaluated to enable higher cure rates in both animals and patients. The population pharmacokinetic model developed here can allow optimization of the dosing regimen of benznidazole to treat experimental Chagas' disease. Determining appropriate treatment regimens in animals allows translation of these to clinical studies.
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Affiliation(s)
- Luísa Perin
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Leonardo Pinto
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Glauco Henrique Balthazar Nardotto
- Laboratory of Clinical Pharmacokinetics, Department of Clinical, Toxicological and Bromatological Analyses, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Kátia da Silva Fonseca
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Beatriz Oliveira Paiva
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | - Israel Molina
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Tropical Medicine and International Health Unit, Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain, PROSICS Barcelona
| | - Rodrigo Correa-Oliveira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Laboratory of Cellular and Molecular Immunology, René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Department of Clinical Analysis, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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11
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Fonseca KDS, Perin L, de Paiva NCN, da Silva BC, Duarte THC, Marques FDS, Costa GDP, Molina I, Correa-Oliveira R, Vieira PMDA, Carneiro CM. Benznidazole Treatment: Time- and Dose-Dependence Varies with the Trypanosoma cruzi Strain. Pathogens 2021; 10:729. [PMID: 34207764 PMCID: PMC8229751 DOI: 10.3390/pathogens10060729] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 12/02/2022] Open
Abstract
As the development of new drugs for Chagas disease is not a priority due to its neglected disease status, an option for increasing treatment adherence is to explore alternative treatment regimens, which may decrease the incidence of side effects. Therefore, we evaluated the efficacy of different therapeutic schemes with benznidazole (BNZ) on the acute and chronic phases of the disease, using mice infected with strains that have different BNZ susceptibilities. Our results show that the groups of animals infected by VL-10 strain, when treated in the chronic phase with a lower dose of BNZ for a longer period of time (40 mg/kg/day for 40 days) presented better treatment efficacy than with the standard protocol (100 mg/kg/day for 20 days) although the best result in the treatment of the animals infected by the VL-10 strain was with100 mg/kg/day for 40 days. In the acute infection by the Y and VL-10 strains of T. cruzi, the treatment with a standard dose, but with a longer time of treatment (100 mg/kg/day for 40 days) presented the best results. Given these data, our results indicate that for BNZ, the theory of dose and time proportionality does not apply to the phases of infection.
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Affiliation(s)
- Kátia da Silva Fonseca
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
| | - Luísa Perin
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
| | - Nívia Carolina Nogueira de Paiva
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
| | - Beatriz Cristiane da Silva
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
| | - Thays Helena Chaves Duarte
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (T.H.C.D.); (F.d.S.M.)
| | - Flávia de Souza Marques
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (T.H.C.D.); (F.d.S.M.)
| | - Guilherme de Paula Costa
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
| | - Israel Molina
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
- Tropical Medicine and International Health Unit, Department of Infectious Diseases, Vall d’Hebron University Hospital, Universitat Autònoma de Barcelona, PROSICS Barcelona, 08035 Barcelona, Spain
| | - Rodrigo Correa-Oliveira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
- Laboratory of Cellular and Molecular Immunology, René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte 30190-002, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (T.H.C.D.); (F.d.S.M.)
| | - Cláudia Martins Carneiro
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil; (K.d.S.F.); (L.P.); (N.C.N.d.P.); (B.C.d.S.); (G.d.P.C.); (I.M.); (R.C.-O.); (P.M.d.A.V.)
- Department of Clinical Analysis, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil
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12
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Costa AFP, de Brito RCF, Carvalho LM, Cardoso JMDO, Vieira PMDA, Reis AB, Aguiar-Soares RDDO, Roatt BM. Liver infusion tryptose (LIT): the best choice for growth, viability, and infectivity of Leishmania infantum parasites. Parasitol Res 2020; 119:4185-4195. [PMID: 33033848 PMCID: PMC7544523 DOI: 10.1007/s00436-020-06893-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/13/2020] [Accepted: 09/16/2020] [Indexed: 01/27/2023]
Abstract
Leishmania spp. parasites have a complex biological cycle presenting basically two different morphological stages, the amastigote and promastigote forms. In vitro cultivation allows a more complete study of the biological aspects of these parasites, indicating better conditions for infection, immunoassay tests, drug evaluations, and vaccines. Thus, we evaluated the three most used culture media for Leishmania spp., Grace’s insect cell culture medium (Grace’s), liver infusion tryptose (LIT), and Schneider’s insect medium (Schneider’s), without supplementation or supplemented with fetal calf serum (FCS) and bovine serum albumin (Albumin) to evaluate the growth, viability, and infectivity of the L. infantum promastigotes. It was observed that promastigote forms have a better growth in LIT and Schneider’s with or without FCS when compared to that in Grace’s. The supplementation with albumin promoted greater viability of the parasites independent of the medium. For in vitro infection of J774.A1 macrophages using light microscopy and flow cytometry analyses, FCS-supplemented LIT and Grace’s promoted higher percentage of infected macrophages and parasite load compared with Schneider’s media. Taken together, our results demonstrated that the supplementation of LIT culture medium with FCS is the most suitable strategy to cultivate Leishmania infantum parasites enabling the maintenance of growth and infective parasites for research uses.
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Affiliation(s)
- Ana Flávia Pereira Costa
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Rory Cristiane Fortes de Brito
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Lívia Mendes Carvalho
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Jamille Mirelle de Oliveira Cardoso
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratório de Morfopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Departamento de Ciências Biológicas, Insituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil.,Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, INCT-DT, Salvador, Brazil
| | - Rodrigo Dian de Oliveira Aguiar-Soares
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000, Brazil. .,Departamento de Ciências Biológicas, Insituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil. .,Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, INCT-DT, Salvador, Brazil.
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13
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Carvalho LM, de Carvalho TV, Ferraz AT, Marques FDS, Roatt BM, Fonseca KDS, Reis LES, Carneiro CM, Vieira PMDA. Histopathological changes in the gastrointestinal tract and systemic alterations triggered by experimental oral infection with Trypanosoma cruzi. Exp Parasitol 2020; 218:108012. [PMID: 33011239 DOI: 10.1016/j.exppara.2020.108012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 11/19/2022]
Abstract
Chagas disease, caused by the protozoan Trypanosoma cruzi, is endemic in almost all countries of Latin America. In Brazil, oral infection is becoming the most important mechanism of transmission of the disease in several regions of the country. The gastrointestinal tract is the gateway for the parasite through this route of infection, however, little is known about the involvement of these organs related to oral route. In this sense, the present study evaluated the impact of oral infection on the digestive tract in mice infected by Berenice-78 (Be-78) T. cruzi strain, in comparison with the intraperitoneal route of infection. In this work, the intraperitoneal route group showed a peak of parasitemia similar to the oral route group, however the mortality rate among the orally infected animals was higher when compared to intraperitoneal route. By analyzing the frequency of blood cell populations, differences were mainly observed in CD4+ T lymphocytes, and not in CD8+, presenting an earlier reduction in the number of CD4+ T cells, which persisted for a longer period, in the animals of the oral group when compared with the intraperitoneal group. Animals infected by oral route presented a higher tissue parasitism and inflammatory infiltrate in stomach, duodenum and colon on the 28th day after infection. Therefore, these data suggest that oral infection has a different profile of parasitological and immune responses compared to intraperitoneal route, being the oral route more virulent and with greater tissue parasitism in organs of the gastrointestinal tract evaluated during the acute phase.
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Affiliation(s)
- Lívia Mendes Carvalho
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil; Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Thais Vieira de Carvalho
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Aline Tonhela Ferraz
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Flávia de Souza Marques
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Kátia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Levi Eduardo Soares Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Claudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
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14
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Leite ALJ, Oliveira DSD, Mota LWR, Carvalho LCF, Zimmermann FF, Paiva NCND, Vieira PMDA, de Lana M, Afonso LCC, Talvani A. Ectonucleotidases from trypomastigotes from different sources and various genetic backgrounds of Trypanosoma cruzi potentiate their infectivity and host inflammation. Cytokine 2020; 136:155255. [PMID: 32866897 DOI: 10.1016/j.cyto.2020.155255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/18/2020] [Accepted: 08/12/2020] [Indexed: 01/13/2023]
Abstract
Distinct populations of Trypanosoma cruzi interact with mammalian cardiac muscle cells causing different inflammation patterns and low heart functionality. During T. cruzi infection, the extracellular ATP is hydrolyzed to tri- and/or diphosphate nucleotides, based on the infectivity, virulence, and regulation of the inflammatory response. T. cruzi carries out this hydrolysis through the T. cruzi ectonucleotidase, NTPDase-1 (TcNTPDase-1). This study aimed to evaluate the role of TcNTPDase-1 in culture rich in metacyclic trypomastigote forms (MT) and cell culture-derived trypomastigote forms (CT) from Colombiana (discrete typing unit - DTU I), VL-10 (DTU II), and CL (DTU VI) strains of T. cruzi. For this, we measured TcNTPDase-1 activity in suramin-treated and untreated parasites and infected J774 cells and C57BL/6 mice with suramin pre-treated parasites to assess parasitic and inflammatory cardiac profile in the acute phase of infection. Our data indicated a higher TcNTPDase-1 activity for ATP in culture rich in metacyclic trypomastigote forms from Colombiana strain in comparison to those from VL-10 and CL strains. The cell culture-derived trypomastigote forms from CL strain presented higher capacity to hydrolyze ATP than those from Colombiana and VL-10 strains. Suramin inhibited ATP hydrolysis in all studied parasite forms and strains. Suramin pre-treated parasites reduced J774 cell infection and increased nitrite production in vitro. In vivo studies showed a reduction of inflammatory infiltrate in the cardiac tissues of animals infected with cell culture-derived trypomastigote forms from suramin pre-treated Colombiana strain. In conclusion, TcNTPDase-1 activity in trypomastigotes forms drives part of the biological characteristics observed in distinct DTUs and may induce cardiac pathogenesis during T. cruzi infection.
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Affiliation(s)
- Ana Luísa Junqueira Leite
- Laboratory of Immunobiology of the Inflammation, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil
| | - Daniela Silva de Oliveira
- Laboratory of Immunobiology of the Inflammation, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil
| | - Ludmilla Walter Reis Mota
- Laboratory of Immunobiology of the Inflammation, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil; Laboratory of Chagas Disease, NUPEB, Universidade Federal de Ouro Preto, MG, Brazil
| | | | - Fernanda Francine Zimmermann
- Laboratory of Immunoparasitology, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil
| | | | - Paula Melo de Abreu Vieira
- Laboratory of Morphopathology, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil
| | - Marta de Lana
- Laboratory of Chagas Disease, NUPEB, Universidade Federal de Ouro Preto, MG, Brazil
| | - Luís Carlos Crocco Afonso
- Laboratory of Immunoparasitology, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil
| | - André Talvani
- Laboratory of Immunobiology of the Inflammation, Department of Biological Sciences, Universidade Federal de Ouro Preto, MG, Brazil.
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15
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Perin L, Fonseca KDS, de Carvalho TV, Carvalho LM, Madeira JV, Medeiros LDF, Molina I, Correa-Oliveira R, Carneiro CM, Vieira PMDA. Low-dose of benznidazole promotes therapeutic cure in experimental chronic Chagas' disease with absence of parasitism in blood, heart and colon. Exp Parasitol 2020; 210:107834. [PMID: 31978394 DOI: 10.1016/j.exppara.2020.107834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 11/05/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 10/25/2022]
Abstract
Studies suggest that the dose of the standard benznidazole (BNZ) treatment regimen might be too high. We investigated the efficacy of BNZ 20 and 40 mg/kg/day compared with standard dose (100 mg/kg/day) to induce cure in mice infected with Trypanosoma cruzi Y strain in the acute and chronic phases of Chagas' disease. Our findings indicate that an experimental treatment with a BNZ low-dose (40 mg/kg/day) is similarly effective as the usual dose in the chronic mice model (100% of cure). In addition, the treatment in the chronic model of Chagas' disease presented better results than the acute model and colon appears to be a key tissue when it comes to evaluating treatment efficacy compared to blood and heart. Therefore, our data suggest the reconsideration of the current therapy, mainly in the chronic phase of the disease.
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Affiliation(s)
- Luísa Perin
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
| | - Kátia da Silva Fonseca
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Thaís Vieira de Carvalho
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Lívia Mendes Carvalho
- Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - João Vitor Madeira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Luciana da Fonseca Medeiros
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Israel Molina
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Tropical Medicine and International Health Unit, Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Rodrigo Correa-Oliveira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Laboratory of Cellular and Molecular Immunology, René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Department of Clinical Analysis, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Immunopathology, Nucleus of Biological Sciences Research, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Laboratory of Morphopathology, Department of Biological Sciences, Nucleus of Biological Sciences Research, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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16
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Amparo TR, Rodrigues IV, Seibert JB, Almeida TC, Cabral VAR, Vieira PMDA, Brandão GC, Oliveira MLGD, Silva GND, Santos ODHD, Vieira Filho SA, Teixeira LFM, Souza GHBD. Antibacterial substances from leaves of Protium spruceanum (Burseraceae): in vitro and in silico evaluation. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902020000118474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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17
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Molina I, Perin L, Aviles AS, de Abreu Vieira PM, da Silva Fonseca K, Cunha LM, Carneiro CM. The effect of benznidazole dose among the efficacy outcome in the murine animal model. A quantitative integration of the literature. Acta Trop 2020; 201:105218. [PMID: 31610148 DOI: 10.1016/j.actatropica.2019.105218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 09/06/2019] [Accepted: 10/10/2019] [Indexed: 12/17/2022]
Abstract
Despite more than 100 years since it was firstly described Chagas disease, only two drugs are available to treat Chagas disease: Nifurtimox launched by Bayer in 1965 and benznidazole launched by Roche in 1971. Drug discovery initiatives have been looking for new compounds as an alternative to these old drugs. Although new platforms have been used with the latest technologies, a critical step on that process still relies on the in vivo model. Unfortunately, to date, available animal models have limited predictive value and there is no standardization. With the aim to better understand the role of benznidazole, the current standard of care of Chagas disease, we performed this review. We intend to analyze the influence of the experimental design of the most used animal model, the murine model, in the assessment of the efficacy endpoint.
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Affiliation(s)
- Israel Molina
- Tropical Medicine Unit, Infectious Disease Department. PROSICS (International Health Program of the Catalan Health Institute), Hospital Universitario Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain; Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil.
| | - Luisa Perin
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Augusto Sao Aviles
- Tropical Medicine Unit, Infectious Disease Department. PROSICS (International Health Program of the Catalan Health Institute), Hospital Universitario Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil; Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Katia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Lucas Maciel Cunha
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Claudia M Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
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18
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Amparo TR, Seibert JB, Vieira PMDA, Teixeira LFM, Santos ODHD, de Souza GHB. Herbal medicines to the treatment of skin and soft tissue infections: advantages of the multi-targets action. Phytother Res 2019; 34:94-103. [PMID: 31713305 DOI: 10.1002/ptr.6519] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 05/30/2019] [Revised: 08/27/2019] [Accepted: 09/10/2019] [Indexed: 12/19/2022]
Abstract
The research for new treatments of skin and soft tissue infections (SSTIs) is important due to their high prevalence and number of hospitalizations. The purpose of this review is to address the pathophysiology of SSTIs to highlight the advantages of herbal medicines to their treatment, showing examples of species and compounds with multi-targets action. SSTIs have a complex physiopathology involving the microorganism, as well as inflammation and difficult healing. Therefore, antimicrobial, anti-inflammatory, antioxidant and healing activities are an approach possible for their treatment. Herbal medicines have a wide diversity of biological compounds, mainly phenolic compounds that may act on different targets and also have synergism between them. Therefore, a single medicine may have the four key activities that allied allow eliminating the infection, control the inflammation process and accelerating the healing process, preventing complications with chronic infections.
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Affiliation(s)
- Tatiane Roquete Amparo
- Programa de Pós graduação em Ciências Farmacêuticas, CIPHARMA, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Janaína Brandão Seibert
- Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Programa de Pós Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Luiz Fernando Medeiros Teixeira
- Programa de Pós graduação em Ciências Farmacêuticas, CIPHARMA, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Orlando David Henrique Dos Santos
- Programa de Pós graduação em Ciências Farmacêuticas, CIPHARMA, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Gustavo Henrique Bianco de Souza
- Programa de Pós graduação em Ciências Farmacêuticas, CIPHARMA, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.,Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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19
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Amparo TR, Seibert JB, Mathias FAS, Vieira JFP, Soares RDDOA, Freitas KM, Cabral VAR, Brandão GC, Santos ODHD, de Souza GHB, Vieira PMDA. Anti-inflammatory activity of Protium spruceanum (Benth.) Engler is associated to immunomodulation and enzymes inhibition. J Ethnopharmacol 2019; 241:112024. [PMID: 31181316 DOI: 10.1016/j.jep.2019.112024] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 06/04/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Protium spruceanum (Burseraceae) is used in Brazilian traditional medicine as anti-inflammatory, but the factors involved in this activity were not yet characterized. AIMS OF THE STUDY analyze the aspects involved in the anti-inflammatory activity of polar fractions obtained from extracts of leaves and branches. MATERIALS AND METHODS Hydromethanolic fraction was obtained by liquid-liquid partition from crude ethanolic extract and its compounds were identified by LC-DAD-MS. Activity tests were performed using LPS + IFN-γ stimulated J774A.1 macrophages. Cytokines were evaluated by CBA kit, NO by Griess method, ROS by DCFH-DA, N-acetylglucosaminidase (NAG) activity by spectrophotometric method, matrix-metalloproteinase (MMP-9) activity by zymography, inducible nitric oxide synthase (iNOS) expression by immunofluorescence and cyclooxygenase (COX-2) expression by Western blot. RESULTS Fractions induced an increase of IL-6 and IL-10 which leads to the control of pro-inflammatory cytokines levels. The treatment with the fractions also reduced NO production at all concentrations tested in all evaluated periods. ROS production by the macrophages was inhibited by the treatment and the leaves fraction showed the best results with a lower concentration than that observed for the branches. The enzymes assays showed that leaves fraction inhibited NAG and MMP-9 activities, as well as, iNOS and COX-2 expression. These activities can be associated with the presence of procyanidin, catechin, rutin, quercitrin, isoquercitrin and kaempferol-3-O-rhamnoside, major compounds that were identified in the fraction. CONCLUSIONS Anti-inflammatory activity of P. spruceanum is associated to an immunomodulatory effect that leads to inhibition of ROS, NO, NAG, MMP-9, COX-2 and iNOS.
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Affiliation(s)
- Tatiane Roquete Amparo
- Programa de Pós Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Janaína Brandão Seibert
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Fernando Augusto Siqueira Mathias
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - João Filipe Pereira Vieira
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Rodrigo Dian de Oliveira Aguiar Soares
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Kátia Michelle Freitas
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | | | - Geraldo Célio Brandão
- Programa de Pós Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Orlando David Henrique Dos Santos
- Programa de Pós Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil; Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Gustavo Henrique Bianco de Souza
- Programa de Pós Graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil; Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, 35400-000, Minas Gerais, Brazil.
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20
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Horta AL, Figueiredo VP, Leite ALJ, Costa GDP, Menezes APDJ, Ramos CDO, Pedrosa TCF, Bezerra FS, Vieira PMDA, Talvani A. The β-blocker carvedilol and the benznidazole modulate the cardiac immune response in the acute infection induced by Colombian strain of the Trypanosoma cruzi. Mem Inst Oswaldo Cruz 2018; 113:e180271. [PMID: 30365644 PMCID: PMC6193372 DOI: 10.1590/0074-02760180271] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/02/2018] [Accepted: 09/27/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The infection led by Trypanosoma cruzi persists in mammalian tissues causing an inflammatory imbalance. Carvedilol (Cv), a non-selective beta blocker drug indicated to treat heart failure and antihypertensive has shown to promote antioxidant and immunomodulatory properties which might improve the inflammation induced by T. cruzi. OBJECTIVES Evaluate the role of Cv on the inflammatory response of C57BL/6 mice acutely infected with the Colombian strain of T. cruzi. METHODS Animals were infected with the Colombian strain of T. cruzi and treated with Cv (25 mg/kg/day), benznidazole (Bz) (100 mg/kg/day) or their combination. On the 28th day of infection and 23 days of treatment, the euthanasia occurred, and the heart preserved for histopathological, oxidative stress (SOD, catalase, TBARs, carbonylated proteins) and plasma (CCL2, CCL5, TNF, IL-10) analyses. Parasitaemia and survival were assessed along the infection. FINDINGS Cv decreased TBARs, but increased the mortality rate, the parasitaemia and the levels of CCL2, CCL5, catalase and the inflammatory infiltrate in the cardiac tissue. Bz led the reduction of the inflammatory infiltrate and circulating levels of oxidative stress and inflammatory mediators in the infected mice. MAIN CONCLUSIONS Our data suggest that Cv, in this experimental model using the Colombian strain of T. cruzi, caused damage to the host.
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Affiliation(s)
- Aline Luciano Horta
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Vivian Paulino Figueiredo
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Ana Luisa Junqueira Leite
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Guilherme de Paula Costa
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Ana Paula de Jesus Menezes
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Camila de Oliveira Ramos
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Tamiles Caroline Fernandes Pedrosa
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - Frank Silva Bezerra
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Saúde e Nutrição, Ouro Preto, MG, Brasil
| | - Paula Melo de Abreu Vieira
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil
| | - André Talvani
- Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Ciências Biológicas, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Saúde e Nutrição, Ouro Preto, MG, Brasil.,Universidade Federal de Ouro Preto, Programa de Pós-Graduação em Biomas Tropicais, Ouro Preto, MG, Brasil
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21
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Figueiredo VP, Junior ESL, Lopes LR, Simões NF, Penitente AR, Bearzoti E, Vieira PMDA, Schulz R, Talvani A. High fat diet modulates inflammatory parameters in the heart and liver during acute Trypanosoma cruzi infection. Int Immunopharmacol 2018; 64:192-200. [PMID: 30195817 DOI: 10.1016/j.intimp.2018.08.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 05/01/2018] [Revised: 08/13/2018] [Accepted: 08/24/2018] [Indexed: 11/27/2022]
Abstract
The high fat diet (HFD) can trigger metabolic and cardiovascular diseases. Trypanosoma cruzi infection induces progressive inflammatory manifestations capable to affect the structure and the function of important organs such as the heart and liver. Here we aimed to investigate the effects of a HFD on the immune response and matrix metalloproteinase (MMP) activities during acute infection with the T. cruzi strain VL-10. The VL-10 strain has cardiac tropism and causes myocarditis in mice. Male C57BL/6 mice were treated with either: (i) regular diet (Reg) or (ii) HFD for 8 weeks, after which mice in each group were infected with T. cruzi. Mice were euthanized on day 30 after infection, and the liver and heart were subjected to histology and zymography to determine MMP-2 activities and plasma levels of IL-10, TNF, CCL2, and CCL5. T. cruzi-infected HFD animals had higher parasitemia, LDL and total cholesterol levels. Regardless of diet, plasma levels of all inflammatory mediators and cardiac MMP-2 activity were elevated in infected mice in contrast with the low plasma levels of leptin. HFD animals presented micro- and macrovesicular hepatic steatosis, while cardiac leukocyte infiltration was mainly detected in T. cruzi-infected mice. Our findings suggested that a HFD promotes higher circulating T. cruzi load and cardiac and liver immunopathogenesis in an experimental model using the VL-10 strain of the T. cruzi.
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Affiliation(s)
- Vivian Paulino Figueiredo
- Department of Biological Sciences, Ouro Preto, Minas Gerais, Brazil; Post graduation program of Biological Sciences/NUPEB, Ouro Preto, Minas Gerais, Brazil
| | | | - Laís Roquete Lopes
- Department of Biological Sciences, Ouro Preto, Minas Gerais, Brazil; Post graduation program of Biological Sciences/NUPEB, Ouro Preto, Minas Gerais, Brazil; Post graduation program in Health and Nutrition, Ouro Preto, Minas Gerais, Brazil
| | - Natalia Figueirôa Simões
- Department of Biological Sciences, Ouro Preto, Minas Gerais, Brazil; Post graduation program in Health and Nutrition, Ouro Preto, Minas Gerais, Brazil
| | | | - Eduardo Bearzoti
- Department of Statistics, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Department of Biological Sciences, Ouro Preto, Minas Gerais, Brazil; Post graduation program of Biological Sciences/NUPEB, Ouro Preto, Minas Gerais, Brazil
| | - Richard Schulz
- Department of Pediatrics, Department of Pharmacology, University of Alberta, Edmonton, Alberta, Canada
| | - André Talvani
- Department of Biological Sciences, Ouro Preto, Minas Gerais, Brazil; Post graduation program of Biological Sciences/NUPEB, Ouro Preto, Minas Gerais, Brazil; Post graduation program in Health and Nutrition, Ouro Preto, Minas Gerais, Brazil; Post graduation program in Ecology of Tropical Biomes/ICEB, Ouro Preto, Minas Gerais, Brazil.
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Amparo TR, Rodrigues IV, Seibert JB, Souza RHZ, Oliveira ARD, Cabral VAR, Vieira PMDA, Brandão GC, Okuma AA, Filho SAV, Teixeira LFM, Souza GHBD. Antibacterial activity of extract and fractions from branches of Protium spruceanum and cytotoxicity on fibroblasts. Nat Prod Res 2017; 32:1951-1954. [PMID: 28726498 DOI: 10.1080/14786419.2017.1354182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The crude ethanol extract (CEE) and fractions from branches of Protium spruceanum were subjected to antibacterial and cytotoxicity assays. Compounds of the most active fraction were identified by GC-MS and LC-MS. CEE was active against 19 bacteria and the ethyl acetate fraction (EAF) showed the lowest minimum bactericidal concentration (MBC 0.3-80.0 mg/mL). Through time-kill assay was observed that EAF induced rapid bactericidal effect against Staphylococcus saprophyticus. The cytotoxicity tests against L929 fibroblasts showed great potential of EAF on the treatment of infections caused by five bacteria (MBC < IC50). The results provide in vitro scientific support to the possible application of branches of P. spruceanum as antimicrobial agent that may contribute for treatment of infections.
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Affiliation(s)
| | | | | | | | | | | | | | - Geraldo Célio Brandão
- a Departamento de Farmácia , Universidade Federal de Ouro Preto , Ouro Preto , Brazil
| | - Adriana Akemi Okuma
- e Departamento de Química , Centro Federal de Educação Tecnológica de Minas Gerais , Belo Horizonte , Brazil
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23
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Araújo MCDPM, Barcellos NMS, Vieira PMDA, Gouveia TM, Guerra MO, Peters VM, Saúde-Guimarães DA. Acute and sub chronic toxicity study of aqueous extract from the leaves and branches of Campomanesia velutina (Cambess) O. Berg. J Ethnopharmacol 2017; 201:17-25. [PMID: 28254483 DOI: 10.1016/j.jep.2017.02.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/25/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Campomanesia velutina leaves and branches infusions are used in Brazilian folk medicine to treat diarrhea and to ameliorate intestinal cramps, respectively. AIM OF THE STUDY Carry out the acute and sub chronic pre-clinical evaluation and thus assess the safety and toxicological potential of the specie. MATERIALS AND METHODS In vivo toxicity was evaluated by acute and sub chronic toxicity assays conducted according to the guidelines of the Brazilian Agency of National Health Surveillance (Agência Nacional de Vigilância Sanitária - ANVISA). For acute toxicity evaluation, a single dose of aqueous extracts from the leaves (AEL) and branches (AEB) of Campomanesia velutina were orally administered to mice at doses of 300, 600 and 1200mg/kg. Then, the animals were observed for 14 days. In the sub chronic study, the extracts were orally administered to mice for 14 days at doses of 300, 600 and 1200mg/kg. To assess the toxicological effects, animals were closely observed on general behavior, clinical signs of toxicity, body weight, food and water intake. At the end of the experiment, it was performed biochemical and hematological evaluations, as well as histopathological analysis from the following organs: brain, heart, lungs, liver, stomach, small intestine (section) and left kidney. Preliminary phytochemical analysis was performed using thin layer chromatography (TLC) and colorimetric pharmacognostic tests. RESULTS In oral acute assay, treatment with AEB at the major dose (1200mg/kg) caused diarrhea, abdominal cramps and tremors in females. These effects were reversed at 4th hour. Normochromic normocytic anemia was observed in males treated with AEL 300mg/kg and AEB 600 and 1200mg/kg as well as in females treated with AEB 300 and 1200mg/kg. The kidney of all treated animals showed moderate inflammation and a few hemorrhagic points. In sub chronic assay, treatment with AEL 600mg/kg, AEL 1200mg/kg and AEB 1200mg/kg caused hyper excitability in females that was not reversed. Treatments also had impact on weight gain and the relative weight of males' brain was increased on group treated with AEL 300mg/kg, AEB 300 and AEB 1200mg/kg. Although changes in hematological parameters were not observed, serum creatinine levels were significantly higher in males treated with AEB 300mg/kg. Besides, the heart of all treated animals showed intense hyperemia. Preliminary phytochemical analysis revealed the presence of flavonoids, tannins and phenolic compounds. CONCLUSIONS Toxicity signs were mainly observed after treatment with AEL and AEB at the two highest tested doses (600 and 1200mg/kg), suggesting that the extracts are relatively safe at its effective dose (300mg/kg). However, alterations on hematological and biochemical parameters and on the kidney and heart of the animals were not closely related with the dose, implying caution on its use.
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Affiliation(s)
| | - Neila Márcia Silva Barcellos
- Laboratory of Experimental Pharmacology, School of Pharmacy, Federal University of Ouro Preto, Minas Gerais state, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratory of Morfopathology, Department of Biological Sciences, Federal University of Ouro Preto, Minas Gerais state, Brazil
| | - Thiago Magalhães Gouveia
- Laboratory of Medicinal Plants, School of Pharmacy, Federal University of Ouro Preto,, Minas Gerais state, Brazil
| | - Martha Oliveira Guerra
- Centro de Biologia da Reprodução. Universidade Federal de Juiz de Fora, Minas Gerais state, Brazil
| | - Vera Maria Peters
- Centro de Biologia da Reprodução. Universidade Federal de Juiz de Fora, Minas Gerais state, Brazil
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24
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Perin L, Moreira da Silva R, Fonseca KDS, Cardoso JMDO, Mathias FAS, Reis LES, Molina I, Correa-Oliveira R, Vieira PMDA, Carneiro CM. Pharmacokinetics and Tissue Distribution of Benznidazole after Oral Administration in Mice. Antimicrob Agents Chemother 2017; 61:e02410-16. [PMID: 28167558 PMCID: PMC5365712 DOI: 10.1128/aac.02410-16] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/29/2016] [Indexed: 12/28/2022] Open
Abstract
Specific chemotherapy using benznidazole (BNZ) for Chagas disease during the chronic stage is controversial due to its limited efficacy and toxic effects. Although BNZ has been used to treat Chagas disease since the 1970s, few studies about the biodistribution of this drug exist. In this study, BNZ tissue biodistribution in a murine model and its pharmacokinetic profile in plasma were monitored. A bioanalytical high-performance liquid chromatography method with a UV detector (HPLC-UV) was developed and validated according to the European Medicines Agency for quantification of BNZ in organs and plasma samples prepared by liquid-liquid extraction using ethyl acetate. The developed method was linear in the BNZ concentration, which ranged from 0.1 to 100.0 μg/ml for plasma, spleen, brain, colon, heart, lung, and kidney and from 0.2 to 100.0 μg/ml for liver. Validation assays demonstrated good stability for BNZ under all conditions evaluated. Pharmacokinetic parameters confirmed rapid, but low, absorption of BNZ after oral administration. Biodistribution assays demonstrated different maximum concentrations in organs and similar times to maximum concentration and mean residence times, with means of 40 min and 2.5 h, respectively. Therefore, the biodistribution of BNZ is extensive, reaching organs such as the heart and colon, which are the most relevant organs affected by Trypanosoma cruzi infection, and also the spleen, brain, liver, lungs, and kidneys. Simultaneous analyses of tissues and plasma indicated high BNZ metabolism in the liver. Our results suggest that low bioavailability, instead of inadequate biodistribution, could be responsible for therapeutic failure during the chronic phase of Chagas disease.
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Affiliation(s)
- Luísa Perin
- Laboratório de Pesquisas Clínicas, Programa de Pós-Graduação em Ciências Farmacêuticas (CiPHARMA), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Rodrigo Moreira da Silva
- Núcleo de Pesquisas em Produtos Naturais e Sintéticos, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Kátia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Jamille Mirelle de Oliveira Cardoso
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Fernando Augusto Siqueira Mathias
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Levi Eduardo Soares Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Israel Molina
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Tropical Medicine and International Health Unit, Department of Infectious Diseases, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, PROSICS Barcelona, Barcelona, Spain
| | - Rodrigo Correa-Oliveira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Laboratório de Imunologia Celular e Molecular, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Laboratório de Pesquisas Clínicas, Programa de Pós-Graduação em Ciências Farmacêuticas (CiPHARMA), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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25
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Moreira NDD, Vitoriano-Souza J, Roatt BM, Vieira PMDA, Coura-Vital W, Cardoso JMDO, Rezende MT, Ker HG, Giunchetti RC, Carneiro CM, Reis AB. Clinical, hematological and biochemical alterations in hamster (Mesocricetus auratus) experimentally infected with Leishmania infantum through different routes of inoculation. Parasit Vectors 2016; 9:181. [PMID: 27030128 PMCID: PMC4815141 DOI: 10.1186/s13071-016-1464-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 12/23/2015] [Accepted: 03/21/2016] [Indexed: 11/25/2022] Open
Abstract
Background Leishmaniasis remains among the most important parasitic diseases in the developing world and visceral leishmaniasis (VL) is the most fatal. The hamster Mesocricetus auratus is a susceptible model for the characterization of the disease, since infection of hamsters with L. infantum reproduces the clinical and pathological features of human VL. In this context, it provides a unique opportunity to study VL in its active form. The main goal of this study was to evaluate the clinical, biochemical, and hematological changes in male hamsters infected through different routes and strains of L. infantum. Methods In the current study, hamsters (Mesocricetus auratus) were infected with the L. infantum strains (WHO/MHOM/BR/74/PP75 and MCAN/BR/2008/OP46) by intradermal, intraperitoneal and intracardiac routes. The animals were monitored for a nine month follow-up period. Results The hamsters showed clinical signs similar to those observed in classical canine and human symptomatic VL, including splenomegaly, severe weight loss, anemia, and leucopenia. Therefore the OP46 strain was more infective, clinical signs were more frequent and more exacerbated in IC group with 80 to 100 % of the animals showing splenomegaly, in the last month infection. Additionally, desquamation, hair loss and external mucocutaneous lesions and ulcers localized in the snout, accompanied by swelling of the paws in all animals, were observed. Consequently, the animals presented severe weight loss/cachexia, hunched posture, an inability to eat or drink, and non-responsiveness to external stimuli. Furthermore, regardless of strain, route of inoculum and time assessed, the animals showed renal and hepatic alterations, with increased serum levels of urea and creatinine as well as elevated serum levels of aspartate aminotransferase and alanine aminotransferase. Conclusions These results strongly suggest that the inoculation through the intracardiac route resulted in a higher severity among infections, especially in the sixth and ninth month after infection via intracardiac, exhibited clinical manifestations and biochemical/hematological findings similar to human visceral leishmaniasis. Therefore, we suggest that this route must be preferentially used in experimental infections for pathogenesis studies of VL in the hamster model.
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Affiliation(s)
- Nádia das Dores Moreira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil.,Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Juliana Vitoriano-Souza
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Paula Melo de Abreu Vieira
- Laboratório de Morfopatologia, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Wendel Coura-Vital
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Jamille Mirelle de Oliveira Cardoso
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Mariana Trevisan Rezende
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Henrique Gama Ker
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Rodolfo Cordeiro Giunchetti
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil
| | - Claudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil.,Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil. .,Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil.
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26
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Nogueira-Paiva NC, Vieira PMDA, Oliveri LMR, Fonseca KDS, Pound-Lana G, de Oliveira MT, de Lana M, Veloso VM, Reis AB, Tafuri WL, Carneiro CM. Host-Parasite Interactions in Chagas Disease: Genetically Unidentical Isolates of a Single Trypanosoma cruzi Strain Identified In Vitro via LSSP-PCR. PLoS One 2015; 10:e0137788. [PMID: 26359864 PMCID: PMC4567304 DOI: 10.1371/journal.pone.0137788] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/21/2015] [Indexed: 11/18/2022] Open
Abstract
The present study aims at establishing whether the diversity in pathogenesis within a genetically diverse host population infected with a single polyclonal strain of Trypanosoma cruzi is due to selection of specific subpopulations within the strain. For this purpose we infected Swiss mice, a genetically diverse population, with the polyclonal strain of Trypanosoma cruzi Berenice-78 and characterized via LSSP-PCR the kinetoplast DNA of subpopulations isolated from blood samples collected from the animals at various times after inoculation (3, 6 and 12 months after inoculation). We examined the biological behavior of the isolates in acellular medium and in vitro profiles of infectivity in Vero cell medium. We compared the characteristics of the isolates with the inoculating strain and with another strain, Berenice 62, isolated from the same patient 16 years earlier. We found that one of the isolates had intermediate behavior in comparison with Berenice-78 and Berenice-62 and a significantly different genetic profile by LSSP-PCR in comparison with the inoculating strain. We hereby demonstrate that genetically distinct Trypanosoma cruzi isolates may be obtained upon experimental murine infection with a single polyclonal Trypanosoma cruzi strain.
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Affiliation(s)
- Nívia Carolina Nogueira-Paiva
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
- Departamento de Ciências Biológicas, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Larissa Maris Rezende Oliveri
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Kátia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Gwenaelle Pound-Lana
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Maykon Tavares de Oliveira
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto,Ouro Preto, MG, Brazil
| | - Marta de Lana
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto,Ouro Preto, MG, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto,Ouro Preto, MG, Brazil
| | - Vanja Maria Veloso
- Departamento de Farmácia, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto,Ouro Preto, MG, Brazil
| | - Washington Luiz Tafuri
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto,Ouro Preto, MG, Brazil
- * E-mail:
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27
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Duz ALC, Vieira PMDA, Roatt BM, Aguiar-Soares RDO, Cardoso JMDO, Oliveira FCBD, Reis LES, Tafuri WL, Veloso VM, Reis AB, Carneiro CM. The TcI and TcII Trypanosoma cruzi experimental infections induce distinct immune responses and cardiac fibrosis in dogs. Mem Inst Oswaldo Cruz 2015; 109:1005-13. [PMID: 25591108 PMCID: PMC4325618 DOI: 10.1590/0074-02760140208] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 06/10/2014] [Accepted: 11/06/2014] [Indexed: 12/17/2022] Open
Abstract
Trypanosoma cruzi infection may be caused by different strains with
distinct discrete typing units (DTUs) that can result in variable clinical forms of
chronic Chagas disease. The present study evaluates the immune response and cardiac
lesions in dogs experimentally infected with different T. cruzi
strains with distinct DTUs, namely, the Colombian (Col) and Y strains of TcI
and TcII DTU, respectively. During infection with the Col strain, increased levels of
alanine aminotransferase, erythrocytes, haematocrit and haemoglobin were observed. In
addition, CD8+ T-lymphocytes isolated from the peripheral blood produced
higher levels of interleukin (IL)-4. The latter suggests that during the acute phase,
infection with the Col strain may remain unnoticed by circulating mononuclear cells.
In the chronic phase, a significant increase in the number of inflammatory cells was
detected in the right atrium. Conversely, infection with the Y strain led to
leucopoenia, thrombopoenia, inversion of the ratio of CD4+/CD8+
T-lymphocytes and alterations in monocyte number. The Y strain stimulated the
production of interferon-γ by CD4+ and CD8+ T-lymphocytes and
IL-4 by CD8+ T-cells. In the chronic phase, significant heart inflammation
and fibrosis were observed, demonstrating that strains of different DTUs interact
differently with the host.
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Affiliation(s)
- Ana Luiza Cassin Duz
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | | | | | | | | | - Washington Luiz Tafuri
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | - Vanja Maria Veloso
- Laboratório de Pesquisas Clínicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisa em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
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Nogueira-Paiva NC, Fonseca KDS, Vieira PMDA, Diniz LF, Caldas IS, Moura SALD, Veloso VM, Guedes PMDM, Tafuri WL, Bahia MT, Carneiro CM. Myenteric plexus is differentially affected by infection with distinct Trypanosoma cruzi strains in Beagle dogs. Mem Inst Oswaldo Cruz 2014; 109:51-60. [PMID: 24271001 PMCID: PMC4005521 DOI: 10.1590/0074-0276130216] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 08/21/2013] [Indexed: 11/22/2022] Open
Abstract
Chagasic megaoesophagus and megacolon are characterised by motor abnormalities related to enteric nervous system lesions and their development seems to be related to geographic distribution of distinct Trypanosoma cruzi subpopulations. Beagle dogs were infected with Y or Berenice-78 (Be-78) T. cruzi strains and necropsied during the acute or chronic phase of experimental disease for post mortem histopathological evaluation of the oesophagus and colon. Both strains infected the oesophagus and colon and caused an inflammatory response during the acute phase. In the chronic phase, inflammatory process was observed exclusively in the Be-78 infected animals, possibly due to a parasitism persistent only in this group. Myenteric denervation occurred during the acute phase of infection for both strains, but persisted chronically only in Be-78 infected animals. Glial cell involvement occurred earlier in animals infected with the Y strain, while animals infected with the Be-78 strain showed reduced glial fibrillary acidic protein immunoreactive area of enteric glial cells in the chronic phase. These results suggest that although both strains cause lesions in the digestive tract, the Y strain is associated with early control of the lesion, while the Be-78 strain results in progressive gut lesions in this model.
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Affiliation(s)
| | - Kátia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | - Lívia Figueiredo Diniz
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | - Ivo Santana Caldas
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | | | - Vanja Maria Veloso
- Departamento de Farmácia, Escola de Farmácia, Universidade Federal de Ouro Preto
| | | | - Washington Luiz Tafuri
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | - Maria Terezinha Bahia
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto
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de Souza SM, Vieira PMDA, Roatt BM, Reis LES, da Silva Fonseca K, Nogueira NC, Reis AB, Tafuri WL, Carneiro CM. Dogs infected with the blood trypomastigote form of Trypanosoma cruzi display an increase expression of cytokines and chemokines plus an intense cardiac parasitism during acute infection. Mol Immunol 2013; 58:92-7. [PMID: 24317279 DOI: 10.1016/j.molimm.2013.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/05/2013] [Accepted: 11/09/2013] [Indexed: 02/06/2023]
Abstract
The recent increase in immigration of people from areas endemic for Chagas disease (Trypanosoma cruzi) to the United States and Europe has raised concerns about the transmission via blood transfusion and organ transplants in these countries. Infection by these pathways occurs through blood trypomastigotes (BT), and these forms of T. cruzi are completely distinct of metacyclic trypomastigotes (MT), released by triatomine vector, in relation to parasite-host interaction. Thus, research comparing infection with these different infective forms is important for explaining the potential impacts on the disease course. Here, we investigated tissue parasitism and relative mRNA expression of cytokines, chemokines, and chemokine receptors in the heart during acute infection by MT or BT forms in dogs. BT-infected dogs presented a higher cardiac parasitism, increased relative mRNA expression of pro-inflammatory and immunomodulatory cytokines and of the chemokines CCL3/MIP-1α, CCL5/RANTES, and the chemokine receptor CCR5 during the acute phase of infection, as compared to MT-infected dogs. These results suggest that infection with BT forms may lead to an increased immune response, as revealed by the cytokines ratio, but this kind of immune response was not able to control the cardiac parasitism. Infection with the MT form presented an increase in the relative mRNA expression of IL-12p40 as compared to that of IL-10 or TGF-β1. Correlation analysis showed increased relative mRNA expression of IFN-γ as well as IL-10, which may be an immunomodulatory response, as well as an increase in the correlation of CCL5/RANTES and its CCR5 receptor. Our findings revealed a difference between inoculum sources of T. cruzi, as vectorial or transfusional routes of T. cruzi infection may trigger distinct parasite-host interactions during the acute phase, which may influence immunopathological aspects of Chagas disease.
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Affiliation(s)
- Sheler Martins de Souza
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Levi Eduardo Soares Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Kátia da Silva Fonseca
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Nívia Carolina Nogueira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Washington Luiz Tafuri
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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Moreira NDD, Vitoriano-Souza J, Roatt BM, Vieira PMDA, Ker HG, de Oliveira Cardoso JM, Giunchetti RC, Carneiro CM, de Lana M, Reis AB. Parasite burden in hamsters infected with two different strains of leishmania (Leishmania) infantum: "Leishman Donovan units" versus real-time PCR. PLoS One 2012; 7:e47907. [PMID: 23112869 PMCID: PMC3480442 DOI: 10.1371/journal.pone.0047907] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 09/17/2012] [Indexed: 12/04/2022] Open
Abstract
To develop and test new therapeutics and immune prophylaxis strategies for visceral leishmaniasis (VL), understanding tissue parasitism evolution after experimental infection with Leishmania infantum is important. Experimental infection in a hamster model (Mesocricetus auratus) reproduces several typical aspects of canine and human VL that are closely related to the inoculum’s route. We quantified the parasitism in the liver and spleen of hamsters experimentally infected by various routes (intradermal, intraperitoneal, and intracardiac [IC]) and different strains of L. infantum (MHOM/BR/74/PP75 and Wild) and compared two different methodologies to evaluate tissue parasitism (Leishman Donovan units [LDU] and real-time qPCR). In addition, the quantification of specific total-IgG in the serum of uninfected and infected hamsters was determined by ELISA. The animals were followed for 1, 3, 6 and 9 months post-infection for survival analysis. We found that infection with the Wild strain by the IC route resulted in higher mortality. Positive antibody (IgG) responses were detected with higher peaks at 6 and 9 months in the IC group inoculated with PP75 strain. However, in animals infected with the Wild strain the IgG levels were elevated in all infected groups during all the time evaluated. We also observed by LDU analysis that the IC route lead to higher parasitism in the liver and spleen with both strains. Furthermore, qPCR showed higher sensitivity for identifying animals with low parasitic burden. In conclusion, qPCR can be useful for assessing parasitism in the spleen and liver of a hamster model infected with L. infantum independent of the route of infection, and this technique may become an essential tool for assessing parasite density in the hamster model after experimental treatment or immunization with potential vaccine candidates.
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Affiliation(s)
- Nádia das Dores Moreira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Juliana Vitoriano-Souza
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Bruno Mendes Roatt
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Paula Melo de Abreu Vieira
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Henrique Gama Ker
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Jamille Mirelle de Oliveira Cardoso
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Rodolfo Cordeiro Giunchetti
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Cláudia Martins Carneiro
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Marta de Lana
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
- Laboratório de Doença de Chagas, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
| | - Alexandre Barbosa Reis
- Laboratório de Imunopatologia, Núcleo de Pesquisas em Ciências Biológicas/NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
- Laboratório de Pesquisas Clínicas, Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brasil
- * E-mail:
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de Paula Carli A, de Abreu Vieira PM, Silva KTS, de Sá Cota RG, Carneiro CM, Castro-Borges W, de Andrade MHG. Bowman-Birk inhibitors, proteasome peptidase activities and colorectal pre neoplasias induced by 1,2-dimethylhydrazine in Swiss mice. Food Chem Toxicol 2012; 50:1405-12. [PMID: 22326805 DOI: 10.1016/j.fct.2012.01.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 01/17/2012] [Accepted: 01/19/2012] [Indexed: 12/24/2022]
Abstract
Bowman-Birk inhibitors (BBIs) are protein molecules containing two inhibitory domains for enzymes similar to trypsin and chymotrypsin. Interest in these inhibitors arose from their properties against the cancer chemically induced by 1,2-dimethylhydrazine (DMH). In this study the effect of two BBI preparations (from Glycine max and Macrotyloma axillare) were evaluated for the prevention of colorectal neoplasia induced by intraperitoneal injections of DMH, given at a dose of 30 mg/kg, during 12 weeks. Mice treated with DMH presented histopathological alterations consistent with tumor development, augmented CD44 expression and increased proteasome peptidase activities. Lysosomal fractions, obtained from the intestines, were chromatographed in a Sepharose-BBI column and increased activity for trypsin and chymotrypsin-like proteases recovered from DMH-treated animals. In parallel, mice treated for eight weeks with BBIs showed a decrease in the chymotrypsin and trypsin-like proteasome activities compared to animals fed on normal diet. For the groups receiving simultaneous treatment with DMH and BBIs, dysplasic lesions were not observed and proteasome peptidase activities were similar to the control group after the 24th week. These results suggest that the mechanism by which BBIs could prevent the appearance of pre neoplastic lesions is associated with inhibition of both the lysosomal and proteasome-dependent proteolytic pathways.
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Arantes JM, Francisco AF, de Abreu Vieira PM, Silva M, Araújo MSS, de Carvalho AT, Pedrosa ML, Carneiro CM, Tafuri WL, Martins-Filho OA, Elói-Santos SM. Trypanosoma cruzi: desferrioxamine decreases mortality and parasitemia in infected mice through a trypanostatic effect. Exp Parasitol 2011; 128:401-8. [PMID: 21620835 DOI: 10.1016/j.exppara.2011.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 04/07/2011] [Accepted: 05/12/2011] [Indexed: 10/18/2022]
Abstract
Desferrioxamine (DFO) is a potent iron chelator that is also known to modulate inflammation and act as an efficient antioxidant under normal conditions and under oxidative stress. Many in vitro and in vivo studies have shown the efficacy of DFO in the treatment of viral, bacterial and protozoan infections. DFO is known to reduce the intensity of Trypanosoma cruzi infections in mice even during a course of therapy that is not effective in maintaining anaemia or low iron levels. To further clarify these findings, we investigated the action of DFO on mouse T. cruzi infection outcomes and the direct impact of DFO on parasites. Infected animals treated with DFO (5 mg/animal/day) for 35 days, beginning 14 days prior to infection, presented lower parasitemia and lower cumulative mortality rate. No significant effect was observed on iron metabolism markers, erythrograms, leukograms or lymphocyte subsets. In the rapid method for testing in vivo T. cruzi susceptibility, DFO also induced lower parasitemia. In regard to its direct impact on parasites, DFO slightly inhibited the growth of amastigotes and trypomastigotes in fibroblast culture. Trypan blue staining showed no effects of DFO on parasite viability, and only minor apoptosis in trypomastigotes was observed. Nevertheless, a clear decrease in parasite mobility was detected. In conclusion, the beneficial actions of DFO on mice T. cruzi infection seem to be independent of host iron metabolism and free of significant haematological side effects. Through direct action on the parasite, DFO has more effective trypanostatic than trypanocidal properties.
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Affiliation(s)
- Jerusa Marilda Arantes
- Laboratório de Biomarcadores de Diagnóstico e Monitoração, Centro de Pesquisas René Rachou, Fundação Osvaldo Cruz, Belo Horizonte, MG, Brazil
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Francisco AF, de Abreu Vieira PM, Arantes JM, Silva M, Pedrosa ML, Elói-Santos SM, Martins-Filho OA, Teixeira-Carvalho A, Araújo MSS, Tafuri WL, Carneiro CM. Increase of reactive oxygen species by desferrioxamine during experimental Chagas' disease. Redox Rep 2010; 15:185-90. [PMID: 20663295 PMCID: PMC2955510 DOI: 10.1179/174329210x12650506623528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Oxidative stress is common in inflammatory processes associated with many diseases including Chagas' disease. The aim of the present study was to evaluate, in a murine model, biomarkers of oxidative stress together with components of the antioxidant system in order to provide an overview of the mechanism of action of the iron chelator desferrioxamine (DFO). The study population comprised 48 male Swiss mice, half of which were treated daily by intraperitoneal injection of DFO over a 35-day period, while half were administered sterile water in a similar manner. On the 14th day of the experiment, 12 DFO-treated mice and an equal number of untreated mice were experimentally infected with Trypanosoma cruzi. Serum concentrations of nitric oxide and superoxide dismutase and hepatic levels of total glutathione, thiobarbituric acid reactive species and protein carbonyl, were determined on days 0, 7, 14 and 21 post-infection. The results obtained revealed that DFO enhances antioxidant activity in the host but also increases oxidative stress, indicating that the mode of action of the drug involves a positive contribution to the host together with an effect that is not beneficial to the parasite.
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Affiliation(s)
- Amanda Fortes Francisco
- Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
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