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Figueiredo ABC, Fonseca FL, Kuczera D, Conte FDP, Arissawa M, Rodrigues ML. Monoclonal Antibodies against Cell Wall Chitooligomers as Accessory Tools for the Control of Cryptococcosis. Antimicrob Agents Chemother 2021; 65:e0118121. [PMID: 34570650 PMCID: PMC8597760 DOI: 10.1128/aac.01181-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/11/2021] [Accepted: 09/21/2021] [Indexed: 11/20/2022] Open
Abstract
Therapeutic strategies against systemic mycoses can involve antifungal resistance and significant toxicity. Thus, novel therapeutic approaches to fight fungal infections are urgent. Monoclonal antibodies (MAbs) are promising tools to fight systemic mycoses. In this study, MAbs of the IgM isotype were developed against chitin oligomers. Chitooligomers derive from chitin, an essential component of the fungal cell wall and a promising therapeutic target, as it is not synthesized by humans or animals. Surface plasmon resonance (SPR) assays and cell-binding tests showed that the MAbs recognizing chitooligomers have high affinity and specificity for the chitin derivatives. In vitro tests showed that the chitooligomer MAbs increased the fungicidal capacity of amphotericin B against Cryptococcus neoformans. The chitooligomer-binding MAbs interfered with two essential properties related to cryptococcal pathogenesis: biofilm formation and melanin production. In a murine model of C. neoformans infection, the combined administration of the chitooligomer-binding MAb and subinhibitory doses of amphotericin B promoted disease control. The data obtained in this study support the hypothesis that chitooligomer antibodies have great potential as accessory tools in the control of cryptococcosis.
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Affiliation(s)
| | - Fernanda L. Fonseca
- Centro de Desenvolvimento Tecnológico em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Diogo Kuczera
- Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, Brazil
| | - Fernando de Paiva Conte
- Projeto Implantação Planta Piloto, Bio-Manguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Marcia Arissawa
- Vice Diretoria de Desenvolvimento Técnologico, Bio-Manguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Marcio L. Rodrigues
- Instituto Carlos Chagas, Fundação Oswaldo Cruz, Curitiba, Brazil
- Instituto de Microbiologia Paulo de Góes da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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2
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Bavia L, Melanda FN, de Arruda TB, Mosimann ALP, Silveira GF, Aoki MN, Kuczera D, Sarzi ML, Junior WLC, Conchon-Costa I, Pavanelli WR, Duarte Dos Santos CN, Barreto RC, Bordignon J. Epidemiological study on dengue in southern Brazil under the perspective of climate and poverty. Sci Rep 2020; 10:2127. [PMID: 32034173 PMCID: PMC7005746 DOI: 10.1038/s41598-020-58542-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 09/12/2019] [Accepted: 01/13/2020] [Indexed: 11/09/2022] Open
Abstract
Social and epidemiological aspects of dengue were evaluated in an important metropolitan area in southern Brazil, from August 2012 to September 2014. Demographic, clinical, serological data were collected from patients with acute dengue symptoms treated at public health system units (HSUs). A systematic approach to analyze the spatial and temporal distribution of cases was developed, considering the temporal cross-correlation between dengue and weather, and the spatial correlation between dengue and income over the city's census tracts. From the 878 patients with suggestive symptoms, 249 were diagnosed as positive dengue infection (28%). Considering the most statistically significant census tracts, a negative correlation was found between mean income and dengue (r = -0.65; p = 0.02; 95% CI: -0.03 to -0.91). The occurrence of dengue followed a seasonal distribution, and it was found to be three and four months delayed in relation to precipitation and temperature, respectively. Unexpectedly, the occurrence of symptomatic patients without dengue infection followed the same seasonal distribution, however its spatial distribution did not correlate with income. Through this methodology, we have found evidence that suggests a relation between dengue and poverty, which enriches the debate in the literature and sheds light on an extremely relevant socioeconomic and public health issue.
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Affiliation(s)
- Lorena Bavia
- Setor de Ciências da Saúde, Hospital de Clínicas, UFPR, Curitiba, 80060-900, Brazil
| | - Francine Nesello Melanda
- Laboratório de Parasitologia Experimental, Departamento de Ciências Patológicas, UEL, Londrina, 86057-970, Brazil
| | - Thais Bonato de Arruda
- Laboratório de Virologia Molecular do Instituto Carlos Chagas, ICC/Fiocruz/PR, Curitiba, 81350-010, Brazil
| | | | | | - Mateus Nóbrega Aoki
- Laboratório de Ciências e Tecnologias Aplicadas em Saúde do Instituto Carlos Chagas, ICC/Fiocruz/PR, Curitiba, 81350-010, Brazil
| | - Diogo Kuczera
- Laboratório de Virologia Molecular do Instituto Carlos Chagas, ICC/Fiocruz/PR, Curitiba, 81350-010, Brazil
| | - Maria Lo Sarzi
- Secretaria Municipal de Saúde de Cambé, Cambé, 86181-300, Brazil
| | | | - Ivete Conchon-Costa
- Laboratório de Parasitologia Experimental, Departamento de Ciências Patológicas, UEL, Londrina, 86057-970, Brazil
| | - Wander Rogério Pavanelli
- Laboratório de Parasitologia Experimental, Departamento de Ciências Patológicas, UEL, Londrina, 86057-970, Brazil
| | | | | | - Juliano Bordignon
- Laboratório de Virologia Molecular do Instituto Carlos Chagas, ICC/Fiocruz/PR, Curitiba, 81350-010, Brazil.
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Cataneo AHD, Kuczera D, Koishi AC, Zanluca C, Silveira GF, Arruda TBD, Suzukawa AA, Bortot LO, Dias-Baruffi M, Verri WA, Robert AW, Stimamiglio MA, Duarte Dos Santos CN, Wowk PF, Bordignon J. The citrus flavonoid naringenin impairs the in vitro infection of human cells by Zika virus. Sci Rep 2019; 9:16348. [PMID: 31705028 PMCID: PMC6841724 DOI: 10.1038/s41598-019-52626-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [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: 05/10/2019] [Accepted: 10/16/2019] [Indexed: 12/16/2022] Open
Abstract
The Zika virus (ZIKV) is an arthropod-borne virus that belongs to the Flaviviridae family. The ZIKV infection is usually asymptomatic or is associated with mild clinical manifestations; however, increased numbers of cases of microcephaly and birth defects have been recently reported. To date, neither a vaccine nor an antiviral treatment has become available to control ZIKV replication. Among the natural compounds recognized for their medical properties, flavonoids, which can be found in fruits and vegetables, have been found to possess biological activity against a variety of viruses. Here, we demonstrate that the citrus flavanone naringenin (NAR) prevented ZIKV infection in human A549 cells in a concentration-dependent and ZIKV-lineage independent manner. NAR antiviral activity was also observed when primary human monocyte-derived dendritic cells were infected by ZIKV. NAR displayed its antiviral activity when the cells were treated after infection, suggesting that NAR acts on the viral replication or assembly of viral particles. Moreover, a molecular docking analysis suggests a potential interaction between NAR and the protease domain of the NS2B-NS3 protein of ZIKV which could explain the anti-ZIKV activity of NAR. Finally, the results support the potential of NAR as a suitable candidate molecule for developing anti-ZIKV treatments.
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Affiliation(s)
| | - Diogo Kuczera
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andrea Cristine Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Camila Zanluca
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | - Thais Bonato de Arruda
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andréia Akemi Suzukawa
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Leandro Oliveira Bortot
- Laboratório de Física Biológica, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcelo Dias-Baruffi
- Laboratório de Glicoimunologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Waldiceu Aparecido Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Anny Waloski Robert
- Laboratório de Células Tronco, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | | | - Pryscilla Fanini Wowk
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
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Kuczera D, Assolini JP, Tomiotto-Pellissier F, Pavanelli WR, Silveira GF. Highlights for Dengue Immunopathogenesis: Antibody-Dependent Enhancement, Cytokine Storm, and Beyond. J Interferon Cytokine Res 2019; 38:69-80. [PMID: 29443656 DOI: 10.1089/jir.2017.0037] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Infection with dengue virus (DENV) can lead to a wide spectrum of clinical presentations, ranging from asymptomatic infection to death. It is estimated that the disease manifests only in 90 million cases out of the total 390 million yearly infections. Even though research has not yet elucidated which are the precise pathophysiological mechanisms that trigger severe forms of dengue, the infection elicits a critical immune response significant for dengue pathogenesis development. Understanding how the immune response to DENV is established and how it can resolve the infection or turn into an immunopathology is of great importance in DENV research. Currently, studies have extensively debated 2 hypotheses involving immune response: antibody-dependent enhancement and cytokine storm. However, despite its undeniable importance in severe forms of the disease, these 2 hypotheses are based on a primed immune status resulting from previous heterologous infection, abstaining them from explaining the severe forms of dengue in naive immune subjects, for example. Thus, it seems that a more intricate arrangement of causes and conditions must be achieved to severe dengue to occur. Among them, the cytokine network signature elicited, in association with viral aspects deserves special attention regarding the establishment of infection and evolution to pathogenesis. In this work, we intend to shed light on how those elements contribute to severe dengue development.
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Affiliation(s)
- Diogo Kuczera
- 1 Laboratório de Virologia Molecular, Instituto Carlos Chagas , ICC/Fiocruz/PR, Curitiba, Brazil
| | - João Paulo Assolini
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
| | - Fernanda Tomiotto-Pellissier
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
| | - Wander Rogério Pavanelli
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
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Strottmann DM, Zanluca C, Mosimann ALP, Koishi AC, Auwerter NC, Faoro H, Cataneo AHD, Kuczera D, Wowk PF, Bordignon J, Duarte Dos Santos CN. Genetic and biological characterisation of Zika virus isolates from different Brazilian regions. Mem Inst Oswaldo Cruz 2019; 114:e190150. [PMID: 31432892 PMCID: PMC6701881 DOI: 10.1590/0074-02760190150] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 04/29/2019] [Accepted: 07/19/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Zika virus (ZIKV) infections reported in recent epidemics have been linked
to clinical complications that had never been associated with ZIKV before.
Adaptive mutations could have contributed to the successful emergence of
ZIKV as a global health threat to a nonimmune population. However, the
causal relationships between the ZIKV genetic determinants, the pathogenesis
and the rapid spread in Latin America and in the Caribbean remain widely
unknown. OBJECTIVES The aim of this study was to characterise three ZIKV isolates obtained from
patient samples during the 2015/2016 Brazilian epidemics. METHODS The ZIKV genomes of these strains were completely sequenced and in
vitro infection kinetics experiments were carried out in cell
lines and human primary cells. FINDINGS Eight nonsynonymous substitutions throughout the viral genome of the three
Brazilian isolates were identified. Infection kinetics experiments were
carried out with mammalian cell lines A549, Huh7.5, Vero E6 and human
monocyte-derived dendritic cells (mdDCs) and insect cells (Aag2, C6/36 and
AP61) and suggest that some of these mutations might be associated with
distinct viral fitness. The clinical isolates also presented differences in
their infectivity rates when compared to the well-established ZIKV strains
(MR766 and PE243), especially in their abilities to infect mammalian
cells. MAIN CONCLUSIONS Genomic analysis of three recent ZIKV isolates revealed some nonsynonymous
substitutions, which could have an impact on the viral fitness in mammalian
and insect cells.
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Affiliation(s)
- Daisy Maria Strottmann
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Camila Zanluca
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Ana Luiza Pamplona Mosimann
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Andrea C Koishi
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Nathalia Cavalheiro Auwerter
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Helisson Faoro
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Regulação da Expressão Gênica, Curitiba, PR, Brasil
| | | | - Diogo Kuczera
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Pryscilla Fanini Wowk
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Juliano Bordignon
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
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6
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Cataneo AHD, Kuczera D, Mosimann ALP, Silva EG, Ferreira ÁGA, Marques JT, Wowk PF, Santos CNDD, Bordignon J. Detection and clearance of a mosquito densovirus contaminant from laboratory stocks of Zika virus. Mem Inst Oswaldo Cruz 2019; 114:e180432. [PMID: 30758394 PMCID: PMC6369503 DOI: 10.1590/0074-02760180432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 09/10/2018] [Accepted: 01/22/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The Zika virus (ZIKV) epidemics that affected South America in 2016 raised several research questions and prompted an increase in studies in the field. The transient and low viraemia observed in the course of ZIKV infection is a challenge for viral isolation from patient serum, which leads to many laboratories around the world sharing viral strains for their studies. C6/36 cells derived from Aedes albopictus larvae are commonly used for arbovirus isolation from clinical samples and for the preparation of viral stocks. OBJECTIVES Here, we report the contamination of two widely used ZIKV strains by Brevidensovirus, here designated as mosquito densovirus (MDV). METHODS Molecular and immunological techniques were used to analyse the MDV contamination of ZIKV stocks. Also, virus passages in mammalian cell line and infecting susceptible mice were used to MDV clearance from ZIKV stocks. FINDINGS MDV contamination was confirmed by molecular and immunological techniques and likely originated from C6/36 cultures commonly used to grow viral stocks. We applied two protocols that successfully eliminated MDV contamination from ZIKV stocks, and these protocols can be widely applied in the field. As MDV does not infect vertebrate cells, we performed serial passages of contaminated stocks using a mammalian cell line and infecting susceptible mice prior to re-isolating ZIKV from the animals’ blood serum. MDV elimination was confirmed with immunostaining, polymerase chain reaction (PCR), and analysis of the mosquitoes that were allowed to feed on the infected mice. MAIN CONCLUSIONS Since the putative impact of viral contaminants in ZIKV strains generally used for research purposes is unknown, researchers working in the field must be aware of potential contaminants and test viral stocks to certify sample purity.
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Affiliation(s)
| | - Diogo Kuczera
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Ana Luiza Pamplona Mosimann
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | - Emanuele Guimarães Silva
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Bioquímica e Imunologia, Belo Horizonte, MG, Brasil
| | - Álvaro Gil Araújo Ferreira
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Bioquímica e Imunologia, Belo Horizonte, MG, Brasil
| | - João Trindade Marques
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Bioquímica e Imunologia, Belo Horizonte, MG, Brasil
| | - Pryscilla Fanini Wowk
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
| | | | - Juliano Bordignon
- Fundação Oswaldo Cruz-Fiocruz, Instituto Carlos Chagas, Laboratório de Virologia Molecular, Curitiba, PR, Brasil
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Martins SDT, Kuczera D, Lötvall J, Bordignon J, Alves LR. Characterization of Dendritic Cell-Derived Extracellular Vesicles During Dengue Virus Infection. Front Microbiol 2018; 9:1792. [PMID: 30131785 PMCID: PMC6090163 DOI: 10.3389/fmicb.2018.01792] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 05/05/2018] [Accepted: 07/17/2018] [Indexed: 12/15/2022] Open
Abstract
The dengue virus (DENV), transmitted by Aedes spp. mosquitoes, is one of the most important arboviral infections in the world. Dengue begins as a febrile condition, and in certain patients, it can evolve severe clinical outcomes, such as dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). The reasons why certain patients develop DHF or DSS have not been thoroughly elucidated to date, and both patient and viral factors have been implicated. Previous work has shown that a severe immune dysfunction involving dendritic cells and T cells plays a key role in increasing the disease severity, especially in secondary heterologous infections. Extracellular vesicles (EVs) are membranous particles that are secreted by several cell types involved in homeostatic and pathological processes. Secretion of EVs by infected cells can enhance immune responses or favor viral evasion. In this study, we compare the molecular content of EVs that are secreted by human primary dendritic cells under different conditions: uninfected or infected with DENV3 strains isolated from patients with different infection phenotypes (a severe case involving DSS and a mild case). Human monocyte-derived dendritic cells (mdDCs) were infected with the dengue virus strains DENV3 5532 (severe) or DENV3 290 (mild), and the EVs were isolated. The presence of cup-shaped EVs was confirmed by electron microscopy and immunostaining with CD9, CD81, and CD83. The RNA content from the mdDC-infected cells contained several mRNAs and miRNAs related to immune responses compared to the EVs from mock-infected mdDCs. A number of these RNAs were detected exclusively during infection with DENV3 290 or DENV3 5532. This result suggests that the differential immune modulation of mdDCs by dengue strains can be achieved through the EV pathway. Additionally, we observed an association of EVs with DENV-infectious particles that seem to be protected from antibodies targeting the DENV envelope protein. We also showed that EVs derived from cells treated with IFN alpha have a protective effect against DENV infection in other cells. These results suggested that during DENV infection, the EV pathway could be exploited to favor viral viability, although immune mechanisms to counteract viral infection can also involve DC-derived EVs.
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Affiliation(s)
- Sharon de T Martins
- Laboratory of Gene Expression Regulation, Carlos Chagas Institute, FIOCRUZ, Curitiba, Brazil
| | - Diogo Kuczera
- Laboratory of Molecular Virology, Carlos Chagas Institute, FIOCRUZ, Curitiba, Brazil
| | - Jan Lötvall
- Krefting Research Centre, University of Gothenburg, Gothenburg, Sweden
| | - Juliano Bordignon
- Laboratory of Molecular Virology, Carlos Chagas Institute, FIOCRUZ, Curitiba, Brazil
| | - Lysangela R Alves
- Laboratory of Gene Expression Regulation, Carlos Chagas Institute, FIOCRUZ, Curitiba, Brazil
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Fanti JR, Tomiotto-Pellissier F, Miranda-Sapla MM, Cataneo AHD, Andrade CGTDJ, Panis C, Rodrigues JHDS, Wowk PF, Kuczera D, Costa IN, Nakamura CV, Nakazato G, Durán N, Pavanelli WR, Conchon-Costa I. Biogenic silver nanoparticles inducing Leishmania amazonensis promastigote and amastigote death in vitro. Acta Trop 2018; 178:46-54. [PMID: 29111137 DOI: 10.1016/j.actatropica.2017.10.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [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: 05/16/2017] [Revised: 10/24/2017] [Accepted: 10/26/2017] [Indexed: 12/01/2022]
Abstract
American Cutaneous Leishmaniasis (ACL) is a zoonosis caused by Leishmania protozoa. The ACL chemotherapy available is unsatisfactory motivating researches to seek alternative treatments. In this study, we investigated the action of biogenic silver nanoparticle (AgNp-bio) obtained from Fusarium oxysporium, against Leishmania amazonensis promastigote and amastigote forms. The AgNp-bio promastigote treatment results in promastigote death leading to apoptosis-like events due an increased production of reactive oxygen species (ROS), loss of mitochondrial integrity, phosphatidylserine exposure and damage on promastigotes membrane. In L. amazonensis infected macrophages, AgNp-bio treatment was still able to reduce the percentage of infected macrophages and the amount of amastigotes per macrophage, consequently, the amount of promastigotes recovered. This leishmanicidal effect was also accompanied by a decrease in the levels of ROS and nitric oxide. By observing the ultrastructural integrity of the intracellular amastigotes, we found that the AgNp-bio treatment made a significant damage, suggesting that the compound has a direct effect on intracellular amastigotes. These results demonstrated that AgNp-bio had a direct effect against L. amazonensis forms and acted on immunomodulatory ability of infected macrophages, reducing the infection without inducing the synthesis of inflammatory mediators, which continuous stimulation can generate and aggravate leishmaniotic lesions. Overall, our findings suggest that the use of AgNp-bio stands out as a new therapeutic option to be considered for further in vivo investigations representing a possible treatment for ACL.
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Affiliation(s)
- Jacqueline Rodrigues Fanti
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Fernanda Tomiotto-Pellissier
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Milena Menegazzo Miranda-Sapla
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil.
| | - Allan Henrique Depieri Cataneo
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Célia Guadalupe Tardeli de Jesus Andrade
- Laboratory of Electron Microscopy and Microanalysis, Department of General Biology, Biological Sciences Center, State University of Londrina, Londrina, Paraná, Brazil
| | - Carolina Panis
- Laboratory of Inflammatory Mediators, University of Western Paraná, Francisco Beltrão, Paraná, Brazil
| | - Jean Henrique da Silva Rodrigues
- Laboratory of Technological Innovation in Development of Drugs and Cosmetics, Department of Health Basic Sciences, Center of Health Sciences, State University of Maringá, Maringá, Paraná, Brazil
| | - Pryscilla Fanini Wowk
- Laboratory of Molecular Virology, Carlos Chagas Institute (ICC/Fiocruz/PR), Curitiba, Paraná, Brazil
| | - Diogo Kuczera
- Laboratory of Molecular Virology, Carlos Chagas Institute (ICC/Fiocruz/PR), Curitiba, Paraná, Brazil
| | - Idessania Nazareth Costa
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Celso Vataru Nakamura
- Laboratory of Technological Innovation in Development of Drugs and Cosmetics, Department of Health Basic Sciences, Center of Health Sciences, State University of Maringá, Maringá, Paraná, Brazil
| | - Gerson Nakazato
- Laboratory of Bacteriology Basic and Applied, Department of Microbiology, Biological Sciences Center, State University of Londrina, Londrina, Paraná, Brazil
| | - Nelson Durán
- Institute of Chemistry, Biological Chemistry Laboratory, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil; Brazilian Nanotechnology National Laboratory (LNNano-CNPEM), Campinas, São Paulo, Brazil
| | - Wander Rogério Pavanelli
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Ivete Conchon-Costa
- Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
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9
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Kuczera D, Bavia L, Mosimann ALP, Koishi AC, Mazzarotto GACA, Aoki MN, Mansano AMF, Tomeleri EI, Costa Junior WL, Miranda MM, Lo Sarzi M, Pavanelli WR, Conchon-Costa I, Duarte Dos Santos CN, Bordignon J. Isolation of dengue virus serotype 4 genotype II from a patient with high viral load and a mixed Th1/Th17 inflammatory cytokine profile in South Brazil. Virol J 2016; 13:93. [PMID: 27267473 PMCID: PMC4895951 DOI: 10.1186/s12985-016-0548-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/24/2016] [Indexed: 11/29/2022] Open
Abstract
Background We report the isolation and characterization of dengue virus (DENV) serotype 4 from a resident of Santa Fé, state of Paraná, South Brazil, in March 2013. This patient presented with hemorrhagic manifestations, high viral load and, interestingly, a mixed Th1/Th17 cytokine profile. Case presentation The patient presented with classical dengue symptoms, such as fever, rash, myalgia, arthralgia, and hemorrhagic manifestations including petechiae, gum bleeding and a positive tourniquet test result. A serum sample obtained 1 day after the initial appearance of clinical symptoms was positive for NS1 viral antigen, but this sample was negative for both IgM and IgG against DENV. Dengue virus infection was confirmed by isolation of the virus from C6/36 cells, and dengue virus serotyping was performed via one-step RT-PCR. The infection was confirmed to be caused by a serotype 4 dengue virus. Additionally, based on multiple alignment and phylogeny analyses of its complete genome sequence, the viral strain was classified as genotype II (termed LRV13/422). Moreover, a mixed Th1/Th17 cytokine profile was detected in the patient’s serum, and this result demonstrated significant inflammation. Biological characterization of the virus via in vitro assays comparing LRV13/422 with a laboratory-adapted reference strain of dengue virus serotype 4 (TVP/360) showed that LRV13/422 infects both vertebrate and invertebrate cell lines more efficiently than TVP/360. However, LRV13/422 was unable to inhibit type I interferon responses, as suggested by the results obtained for other dengue virus strains. Furthermore, LRV13/422 is the first completely sequenced serotype 4 dengue virus isolated in South Brazil. Conclusion The high viral load and mixed Th1/Th17 cytokine profile observed in the patient’s serum could have implications for the development of the hemorrhagic signs observed, and these potential relationships can now be further studied using suitable animal models and/or in vitro systems. Electronic supplementary material The online version of this article (doi:10.1186/s12985-016-0548-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Diogo Kuczera
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | - Lorena Bavia
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | - Andrea Cristine Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | - Mateus Nóbrega Aoki
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | | | | | - Milena Menegazzo Miranda
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Maria Lo Sarzi
- Secretaria Municipal de Saúde de Cambé, Cambé, PR, Brazil
| | - Wander Rogério Pavanelli
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Ivete Conchon-Costa
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | | | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil.
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Kuczera D, Paro de Oliveira HH, Fonseca Guimarães FDS, de Lima C, Alves L, Machado AF, Coelho I, Yamaguchi A, Donatti L, Naliwaiko K, Fernandes LC, Nunes EA. Bax/Bcl-2 Protein Expression Ratio and Leukocyte Function Are Related to Reduction of Walker-256 Tumor Growth After β-Hydroxy-β-Methylbutyrate (HMB) Administration in Wistar Rats. Nutr Cancer 2012; 64:286-93. [DOI: 10.1080/01635581.2012.647229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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de Oliveira CC, Abud APR, de Oliveira SM, de SF Guimarães F, de Andrade LF, Di Bernardi RP, de O Coletto EL, Kuczera D, Da Lozzo EJ, Gonçalves JP, da S Trindade E, de F Buchi D. Developments on drug discovery and on new therapeutics: highly diluted tinctures act as biological response modifiers. BMC Complement Altern Med 2011; 11:101. [PMID: 22029602 PMCID: PMC3222609 DOI: 10.1186/1472-6882-11-101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 10/26/2011] [Indexed: 11/10/2022]
Abstract
BACKGROUND In the search for new therapies novel drugs and medications are being discovered, developed and tested in laboratories. Highly diluted substances are intended to enhance immune system responses resulting in reduced frequency of various diseases, and often present no risk of serious side-effects due to its low toxicity. Over the past years our research group has been investigating the action of highly diluted substances and tinctures on cells from the immune system. METHODS We have developed and tested several highly diluted tinctures and here we describe the biological activity of M1, M2, and M8 both in vitro in immune cells from mice and human, and in vivo in mice. Cytotoxicity, cytokines released and NF-κB activation were determined after in vitro treatment. Cell viability, oxidative response, lipid peroxidation, bone marrow and lymph node cells immunophenotyping were accessed after mice in vivo treatment. RESULTS None of the highly diluted tinctures tested were cytotoxic to macrophages or K562. Lipopolysaccharide (LPS)-stimulated macrophages treated with all highly diluted tinctures decreased tumour necrosis factor alpha (TNF-α) release and M1, and M8 decreased IFN-γ production. M1 has decreased NF-κB activity on TNF-α stimulated reporter cell line. In vivo treatment lead to a decrease in reactive oxygen species (ROS), nitric oxide (NO) production was increased by M1, and M8, and lipid peroxidation was induced by M1, and M2. All compounds enhanced the innate immunity, but M1 also augmented acquired immunity and M2 diminished B lymphocytes, responsible to acquired immunity. CONCLUSIONS Based on the results presented here, these highly diluted tinctures were shown to modulate immune responses. Even though further investigation is needed there is an indication that these highly diluted tinctures could be used as therapeutic interventions in disorders where the immune system is compromised.
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de Lima C, Alves LE, Iagher F, Machado AF, Bonatto SJ, Kuczera D, de Souza CF, Pequito DC, Muritiba AL, Nunes EA, Fernandes LC. Anaerobic exercise reduces tumor growth, cancer cachexia and increases macrophage and lymphocyte response in Walker 256 tumor-bearing rats. Eur J Appl Physiol 2008; 104:957-64. [DOI: 10.1007/s00421-008-0849-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2008] [Indexed: 10/21/2022]
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13
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Nunes EA, Kuczera D, Brito GAP, Bonatto SJ, Yamazaki RK, Tanhoffer RA, Mund RC, Kryczyk M, Fernandes LC. β-Hydroxy-β-methylbutyrate supplementation reduces tumor growth and tumor cell proliferation ex vivo and prevents cachexia in Walker 256 tumor-bearing rats by modifying nuclear factor-κB expression. Nutr Res 2008; 28:487-93. [DOI: 10.1016/j.nutres.2008.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2008] [Revised: 04/04/2008] [Accepted: 04/20/2008] [Indexed: 12/28/2022]
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