1
|
Souza JLN, Lopes CDA, Leal-Silva T, Vieira-Santos F, Amorim CCO, Padrão LDLS, Antunes Porto AR, Fujiwara RT, Russo RC, Bueno LL. Evaluation of reference genes for gene expression analysis by real-time quantitative PCR (qPCR) in different tissues from mice infected by Ascaris suum. Microb Pathog 2024; 189:106567. [PMID: 38364877 DOI: 10.1016/j.micpath.2024.106567] [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: 10/03/2023] [Revised: 01/19/2024] [Accepted: 01/31/2024] [Indexed: 02/18/2024]
Abstract
Human ascariasis is the most prevalent helminth infection, affecting 445 million people worldwide. To better understand the impact of the immune system on the pathophysiology of individuals infected with Ascaris suum, mice have been used as experimental models. The RT-qPCR technique is a critical auxiliary tool of investigation used to quantify mRNA levels. However, proper normalization using reference genes is essential to ensure reliable outcomes to avoid analytical errors and false results. Despite the importance of reference genes for experimental A. suum infection studies, no specific reference genes have been identified yet. Therefore, we conducted a study to assess five potential reference genes (GAPDH, 18s, ACTB, B2M, and HPRT1) in different tissues (liver, lungs, small and large intestines) affected by A. suum larval migration in C57BL/6j mice. Tissue collection was carried out to analyze parasite burden and confirm the presence of larvae during the peak of migration in each tissue. Upon confirmation, we analyzed different genes in the tissues and found no common gene with stable expression. Our results highlight the importance of analyzing different genes and using different software programs to ensure reliable relative expression results. Based on our findings, B2M was ranked as the ideal reference gene for the liver, while 18S was the most stable gene in the lung and small intestine. ACTB, or a combination of ACTB with GAPDH, was deemed suitable as reference genes for the large intestine due to their stable expression and less variation between the control and infected groups. To further demonstrate the impact of using different reference genes, we normalized the expression of a chemokine gene (CXCL9) in all tissues. Significant differences in CXCL9 expression levels were observed between different groups in all tissues except for the large intestine. This underscores the importance of selecting appropriate reference genes to avoid overestimating target gene expression levels and encountering normalization-related issues that can lead to false results. In conclusion, our study highlights the significance of using reliable reference genes for accurate RT-qPCR analysis, especially in the context of A. suum infection studies in different tissues. Proper normalization is crucial to ensure the validity of gene expression data and avoid potential pitfalls in interpreting results.
Collapse
Affiliation(s)
- Jorge Lucas Nascimento Souza
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Camila de Almeida Lopes
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Thais Leal-Silva
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flaviane Vieira-Santos
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Chiara Cássia Oliveira Amorim
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Lima Silva Padrão
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Rafaela Antunes Porto
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
2
|
Brito RMDM, de Lima Bessa G, Bastilho AL, Dantas-Torres F, de Andrade-Neto VF, Bueno LL, Fujiwara RT, Magalhães LMD. Genetic diversity of Toxoplasma gondii in South America: occurrence, immunity, and fate of infection. Parasit Vectors 2023; 16:461. [PMID: 38115102 PMCID: PMC10729521 DOI: 10.1186/s13071-023-06080-w] [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: 09/07/2023] [Accepted: 12/03/2023] [Indexed: 12/21/2023] Open
Abstract
Toxoplasma gondii is an intracellular parasite with a worldwide distribution. Toxoplasma gondii infections are of great concern for public health, and their impact is usually most severe in pregnant women and their foetuses, and in immunocompromised individuals. Displaying considerable genetic diversity, T. gondii strains differ widely according to geographical location, with archetypal strains predominantly found in the Northern Hemisphere and non-archetypal (atypical) strains, with highly diverse genotypes, found mainly in South America. In this review, we present an overview of the identification and distribution of non-archetypal strains of T. gondii. Special attention is paid to the strains that have been isolated in Brazil, their interaction with the host immunological response, and their impact on disease outcomes. The genetic differences among the strains are pivotal to the distinct immunological responses that they elicit. These differences arise from polymorphisms of key proteins released by the parasite, which represent important virulence factors. Infection with divergent non-archetypal strains can lead to unusual manifestations of the disease, even in immunocompetent individuals.
Collapse
Affiliation(s)
- Ramayana Morais de Medeiros Brito
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Alexandre Lazoski Bastilho
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Valter Ferreira de Andrade-Neto
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Luisa M D Magalhães
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
3
|
Clímaco MDC, de Figueiredo LA, Lucas RC, Pinheiro GRG, Dias Magalhães LM, Oliveira ALGD, Almeida RM, Barbosa FS, Castanheira Bartholomeu D, Bueno LL, Mendes TA, Zhan B, Jones KM, Hotez P, Bottazzi ME, Oliveira FMS, Fujiwara RT. Development of chimeric protein as a multivalent vaccine for human Kinetoplastid infections: Chagas disease and leishmaniasis. Vaccine 2023; 41:5400-5411. [PMID: 37479612 DOI: 10.1016/j.vaccine.2023.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 09/27/2022] [Revised: 06/23/2023] [Accepted: 07/10/2023] [Indexed: 07/23/2023]
Abstract
Leishmania spp. and Trypanosoma cruzi are parasitic kinetoplastids of great medical and epidemiological importance since they are responsible for thousands of deaths and disability-adjusted life-years annually, especially in low- and middle-income countries. Despite efforts to minimize their impact, current prevention measures have failed to fully control their spread. There are still no vaccines available. Taking into account the genetic similarity within the Class Kinetoplastida, we selected CD8+ T cell epitopes preserved among Leishmania spp. and T. cruzi to construct a multivalent and broad-spectrum chimeric polyprotein vaccine. In addition to inducing specific IgG production, immunization with the vaccine was able to significantly reduce parasite burden in the colon, liver and skin lesions from T. cruzi, L. infantum and L. mexicana challenged mice, respectively. These findings were supported by histopathological analysis, which revealed decreased inflammation in the colon, a reduced number of degenerated hepatocytes and an increased proliferation of connective tissue in the skin lesions of the corresponding T. cruzi, L. infantum and L. mexicana vaccinated and challenged mice. Collectively, our results support the protective effect of a polyprotein vaccine approach and further studies will elucidate the immune profile associated with this protection. Noteworthy, our results act as conceptual proof that a single multi-kinetoplastida vaccine can be used effectively to control different infectious etiologies, which in turn can have a profound impact on the development of a new generation of vaccines.
Collapse
Affiliation(s)
- Marianna de Carvalho Clímaco
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza Almeida de Figueiredo
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rayane Cristina Lucas
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Luísa Mourão Dias Magalhães
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Laura Grossi de Oliveira
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Raquel Martins Almeida
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Lilian Lacerda Bueno
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Tiago Antonio Mendes
- Department of Biochemistry and Molecular Biology, Institute of Biotechnology Applied to Agropecuaria, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - Bin Zhan
- National School of Tropical Medicine, Departments of Pediatrics and Molecular Virology & Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA; Texas Children's Hospital Center for Vaccine Development, Baylor College of Medicine, Houston, TX, USA
| | - Kathryn Marie Jones
- National School of Tropical Medicine, Departments of Pediatrics and Molecular Virology & Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA; Texas Children's Hospital Center for Vaccine Development, Baylor College of Medicine, Houston, TX, USA
| | - Peter Hotez
- National School of Tropical Medicine, Departments of Pediatrics and Molecular Virology & Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA; Texas Children's Hospital Center for Vaccine Development, Baylor College of Medicine, Houston, TX, USA
| | - Maria Elena Bottazzi
- National School of Tropical Medicine, Departments of Pediatrics and Molecular Virology & Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA; Texas Children's Hospital Center for Vaccine Development, Baylor College of Medicine, Houston, TX, USA
| | - Fabrício Marcus Silva Oliveira
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
4
|
Siqueira WF, Cardoso MS, Fraga VG, Ottino J, Ribeiro VM, Gondim CN, de Paiva Barçante JM, Amado Gomes AC, Galdino AS, Eersels K, van Grinsven B, Bartholomeu DC, Bueno LL, Cleij T, Fujiwara RT. Immunogenic mapping of rDyn-1 and rKDDR-plus proteins and selection of oligopeptides by immunoblotting for the diagnosis of Leishmania infantum-infected dogs. PLoS Negl Trop Dis 2023; 17:e0011535. [PMID: 37540724 PMCID: PMC10442149 DOI: 10.1371/journal.pntd.0011535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 08/21/2023] [Accepted: 07/15/2023] [Indexed: 08/06/2023] Open
Abstract
Endemic in Brazil, visceral leishmaniasis (VL) is a zoonotic infection that is among the most important parasitic diseases transmitted by vectors. Dogs are the main reservoirs of canine leishmaniasis (CanL) and their identification is used in some countries as part of disease prevention and control measures in the canine and human population. In this context, serological tests are necessary, composed of antigens capable of correctly identifying infected dogs, minimizing the number of false-negative cases. This study aimed to identify more immunoreactive peptides derived from two previously described whole proteins (rDyn-1 and rKDDR-plus) and compare their performance to the control antigens rK39 and the crude extract for the detection of dogs infected with L. infantum, especially the asymptomatic ones. The three selected peptides and a mixture of them, along with the rDyn-1, rKDDR-plus, rK39, and crude extract antigens were evaluated using indirect ELISA with sera samples from 186 dogs with CanL, being asymptomatic (n = 50), symptomatic (n = 50), co-infected (n = 19), infected with Babesia sp. (n = 7), Ehrlichia sp. (n = 6), T. cruzi (n = 20) and uninfected (n = 34). The results showed that the rDyn-1 protein and the peptide mixture had the highest sensitivity (100% and 98.32%, respectively) and specificity (97.01 and 98.51, respectively). A high degree of kappa agreement was found for rDyn-1 protein (0.977), mixed peptides (0.965), rKDDR-plus protein (0.953), K-plus peptide 1 (0.930) and Dyn-1 peptide (0.893). The mixture of peptides showed the highest likelihood (65.87). The ELISA using the mixture of peptides and the rDyn-1 protein showed high performance for CanL serodiagnosis. More mix combinations of the peptides and additional extended field tests with a larger sample size are recommended.
Collapse
Affiliation(s)
- Williane Fernanda Siqueira
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Faculty of Science and Engineering of Maastricht University, Maastricht, Limburg, Netherlands
| | - Mariana Santos Cardoso
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vanessa Gomes Fraga
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Jennifer Ottino
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vitor Márcio Ribeiro
- Veterinary School, Pontificial Catholic University of Minas Gerais, Betim, Brazil
| | | | | | | | - Alexsandro Sobreira Galdino
- Laboratory of Microbial Biotechnology, Universidade Federal de São João Del-Rei, Divinópolis, Minas Gerais, Brazil
| | - Kasper Eersels
- Faculty of Science and Engineering of Maastricht University, Maastricht, Limburg, Netherlands
| | - Bart van Grinsven
- Faculty of Science and Engineering of Maastricht University, Maastricht, Limburg, Netherlands
| | | | - Lilian Lacerda Bueno
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Thomas Cleij
- Faculty of Science and Engineering of Maastricht University, Maastricht, Limburg, Netherlands
| | | |
Collapse
|
5
|
Brito RMDM, da Silva MCM, Vieira-Santos F, de Almeida Lopes C, Souza JLN, Bastilho AL, de Barros Fernandes H, de Miranda AS, de Oliveira ACP, de Almeida Vitor RW, de Andrade-Neto VF, Bueno LL, Fujiwara RT, Magalhães LMD. Chronic infection by atypical Toxoplasma gondii strain induces disturbance in microglia population and altered behaviour in mice. Brain Behav Immun Health 2023; 30:100652. [PMID: 37396335 PMCID: PMC10308216 DOI: 10.1016/j.bbih.2023.100652] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/03/2023] [Accepted: 06/04/2023] [Indexed: 07/04/2023] Open
Abstract
Toxoplasma gondii chronic infection is characterized by the establishment of tissue cysts in the brain and increased levels of IFN-γ, which can lead to brain circuitry interference and consequently abnormal behaviour in mice. In this sense, the study presented here sought to investigate the impact of chronic infection by two T. gondii strains in the brain of infection-resistant mice, as a model for studying the involvement of chronic neuroinflammation with the development of behavioural alterations. For that, male BALB/c mice were divided into three groups: non-infected (Ni), infected with T. gondii ME49 clonal strain (ME49), and infected with TgCkBrRN2 atypical strain (CK2). Mice were monitored for 60 days to establish the chronic infection and then submitted to behavioural assessment. The enzyme-linked immunosorbent assay was used for measurement of specific IgG in the blood and levels of inflammatory cytokines and neurotrophic factors in the brain, and the cell's immunophenotype was determined by multiparametric flow cytometry. Mice infected with ME49 clonal strain displayed hyperlocomotor activity and memory deficit, although no signs of depressive- and/or anxiety-like behaviour were detected; on the other hand, chronic infection with CK2 atypical strain induced anxiety- and depressive-like behaviour. During chronic infection by CK2 atypical strain, mice displayed a higher number of T. gondii brain tissue cysts and inflammatory infiltrate, composed mainly of CD3+ T lymphocytes and Ly6Chi inflammatory monocytes, compared to mice infected with the ME49 clonal strain. Infected mice presented a marked decrease of microglia population compared to non-infected group. Chronic infection with CK2 strain produced elevated levels of IFN-γ and TNF-ɑ in the brain, decreased NGF levels in the prefrontal cortex and striatum, and altered levels of fractalkine (CX3CL1) in the prefrontal cortex and hippocampus. The persistent inflammation and the disturbance in the cerebral homeostasis may contribute to altered behaviour in mice, as the levels of IFN-γ were shown to be correlated with the behavioural parameters assessed here. Considering the high incidence and life-long persistence of T. gondii infection, this approach can be considered a suitable model for studying the impact of chronic infections in the brain and how it impacts in behavioural responses.
Collapse
Affiliation(s)
- Ramayana Morais de Medeiros Brito
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Maria Carolina Machado da Silva
- Neuropharmacology Laboratory, Department of Pharmacology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Flaviane Vieira-Santos
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Camila de Almeida Lopes
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jorge Lucas Nascimento Souza
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Alexandre Lazoski Bastilho
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Heliana de Barros Fernandes
- Laboratory of Neurobiology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Aline Silva de Miranda
- Laboratory of Neurobiology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Antônio Carlos Pinheiro de Oliveira
- Neuropharmacology Laboratory, Department of Pharmacology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ricardo Wagner de Almeida Vitor
- Laboratory of Toxoplasmosis, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Valter Ferreira de Andrade-Neto
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Biosciences Centre, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luísa Mourão Dias Magalhães
- Laboratory of Immunobiology and Control of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| |
Collapse
|
6
|
Costa Souza RM, Montenegro Pimentel LML, Ferreira LKM, Pereira VRA, Santos ACDS, Dantas WM, Silva CJO, De Medeiros Brito RM, Andrade JL, De Andrade-Neto VF, Fujiwara RT, Bueno LL, Silva Junior VA, Pena L, Camara CA, Rathi B, De Oliveira RN. Biological activity of 1,2,3-triazole-2-amino-1,4-naphthoquinone derivatives and their evaluation as therapeutic strategy for malaria control. Eur J Med Chem 2023; 255:115400. [PMID: 37130472 DOI: 10.1016/j.ejmech.2023.115400] [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: 02/09/2023] [Revised: 03/30/2023] [Accepted: 04/18/2023] [Indexed: 05/04/2023]
Abstract
Malaria can be caused by several Plasmodium species and the development of an effective vaccine is challenging. Currently, the most effective tool to control the disease is the administration of specific chemotherapy; however, resistance to the frontline antimalarials is one of the major problems in malaria control and thus the development of new drugs becomes urgent. The study presented here sought to evaluate the antimalarial activities of compounds derived from 2-amino-1,4-naphthoquinones containing 1,2,3-triazole using in vivo and in vitro models. 1H-1,2,3-Triazole 2-amino-1,4-naphthoquinone derivatives were synthesized and evaluated for antimalarial activity in vitro, using P. falciparum W2 chloroquine (CQ) resistant strain and in vivo using the murine-P. berghei ANKA strain. Acute toxicity was determined as established by the OECD (2001). Cytotoxicity was evaluated against HepG2 and Vero mammalian cell lines. Transmission electron microscopy of the Plasmodium falciparum trophozoite (early and late stages) was used to evaluate the action of compounds derived at ultra-structural level. The compounds displayed low cytotoxicity CC50 > 100 μM, neither did they cause hemolysis at the tested doses and nor the signs of toxicity in the in vivo acute toxicity test. Among the five compounds tested, one showed IC50 values in submicromolar range of 0.8 μM. Compounds 7, 8 and 11 showed IC50 values < 5 μM, and selectivity index (SI) ranging from 6.8 to 343 for HepG2, and from 13.7 to 494.8 for Vero cells. Compounds 8 and 11 were partially active against P. berghei induced parasitemia in vivo. Analysis of the ultrastructural changes associated with the treatment of these two compounds, showed trophozoites with completely degraded cytoplasm, loss of membrane integrity, organelles in the decomposition stage and possible food vacuole deterioration. Our results indicated that compounds 8 and 11 may be considered hit molecules for antimalarial drug discovery platform and deserve further optimization studies.
Collapse
Affiliation(s)
- Renata Maria Costa Souza
- Department of Immunology, Laboratory of Immunoepidemiology of Aggeu Magalhães Institute, Fiocruz-PE, Recife, Pernambuco, Brazil; Department of Chemistry, Laboratory of Synthesis of Bioactive Compounds, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | | | | | - Valéria Rêgo Alves Pereira
- Department of Immunology, Laboratory of Immunoparasitology, Aggeu Magalhães Institute, Fiocruz-PE, Recife, Pernambuco, Brazil
| | - Aline Caroline Da Silva Santos
- Department of Immunology, Laboratory of Immunoparasitology, Aggeu Magalhães Institute, Fiocruz-PE, Recife, Pernambuco, Brazil
| | - Willyenne Marília Dantas
- Department of Virology and Experimental Therapy Aggeu Magalhães Institute - Fiocruz-PE, Recife, Pernambuco, Brazil; Department of Chemistry, Laboratory of Synthesis of Bioactive Compounds, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - Carla Jasmine Oliveira Silva
- Department of Chemistry, Laboratory of Synthesis of Bioactive Compounds, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - Ramayana Morais De Medeiros Brito
- Department of Microbiology and Parasitology, Laboratory of Malaria and Toxoplasmosis Biology, LaBMAT/DMP/CB, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; Department of Parasitology, Laboratory of Immunobiology and Parasites Control, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - José Lucas Andrade
- Department of Microbiology and Parasitology, Laboratory of Malaria and Toxoplasmosis Biology, LaBMAT/DMP/CB, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Valter Ferreira De Andrade-Neto
- Department of Microbiology and Parasitology, Laboratory of Malaria and Toxoplasmosis Biology, LaBMAT/DMP/CB, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Ricardo Toshio Fujiwara
- Department of Parasitology, Laboratory of Immunobiology and Parasites Control, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Department of Parasitology, Laboratory of Immunobiology and Parasites Control, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Lindomar Pena
- Department of Virology and Experimental Therapy Aggeu Magalhães Institute - Fiocruz-PE, Recife, Pernambuco, Brazil
| | - Celso Amorim Camara
- Department of Chemistry, Laboratory of Synthesis of Bioactive Compounds, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - Brijesh Rathi
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College, University of Delhi, Delhi, 110007, India
| | - Ronaldo Nascimento De Oliveira
- Department of Chemistry, Laboratory of Synthesis of Bioactive Compounds, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil.
| |
Collapse
|
7
|
Siqueira WF, Cardoso MS, Clímaco MDC, Silva ALT, Heidt B, Eersels K, van Grinsven B, Bartholomeu DC, Bueno LL, Cleij T, Fujiwara RT. Serodiagnosis of leishmaniasis in asymptomatic and symptomatic dogs by use of the recombinant dynamin-1-like protein from Leishmania infantum: A preliminary study. Acta Trop 2023; 239:106827. [PMID: 36610530 DOI: 10.1016/j.actatropica.2023.106827] [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: 10/17/2022] [Revised: 12/23/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Visceral leishmaniasis (VL) is a fatal manifestation of an infection caused by intracellular protozoa of the Leishmania genus. In New World countries, VL is classified as a zoonotic disease with domestic dogs acting as its main reservoir. Asymptomatic dogs are as competent to transmit Leishmania to the vectors as symptomatic dogs, however current diagnostic tests are limited and present low sensitivity for this important group. The development of accurate tests is fundamental to the early diagnosis, treatment, and control of canine leishmaniasis. In this study, we investigated the use of a recombinant protein (dynamin-1-like protein, Dyn-1) from L. infantum, as a potential target antigen for leishmaniasis serodiagnosis in both symptomatic and asymptomatic dogs. The antigenic performance of the protein was evaluated by means of ELISA assays using sera from symptomatic (n = 25), asymptomatic (n = 34) and non-infected dogs (n = 36) using ELISA. In addition, sera from dogs experimentally infected with Trypanosoma cruzi (n = 49) and naturally infected with Babesia sp. (n = 8) were tested to evaluate possible cross-reactivity. A crude soluble antigen (CSA) of Leishmania was used as an antigen control and K39 and K26 were used as reference antigens because they are already widely used in commercial tests. rDyn-1-based assay showed the highest sensitivity (97%) compared to the antigens K39 (88%), K26 (86%) and crude extract (95%). The highest specificity among the tests was also obtained with the protein rDyn-1 (94%), compared with the other antigens K39 (81%), K26 (87%), and crude extract (77%). This study showed that the rDyn-1 ELISA assay was able to identify 100% of asymptomatic dogs, establishing its potential as a target for the diagnosis of canine leishmaniasis.
Collapse
Affiliation(s)
- Williane Fernanda Siqueira
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil; Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, Maastricht, Limburg, Netherlands
| | - Mariana Santos Cardoso
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil
| | - Marianna de Carvalho Clímaco
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil
| | | | - Benjamin Heidt
- Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, Maastricht, Limburg, Netherlands
| | - Kasper Eersels
- Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, Maastricht, Limburg, Netherlands
| | - Bart van Grinsven
- Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, Maastricht, Limburg, Netherlands
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil
| | - Lilian Lacerda Bueno
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil; Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil
| | - Thomas Cleij
- Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, Maastricht, Limburg, Netherlands
| | - Ricardo Toshio Fujiwara
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil; Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil.
| |
Collapse
|
8
|
González MAC, Gonçalves AAM, Ottino J, Leite JC, Resende LA, Melo-Júnior OA, Silveira P, Cardoso MS, Fujiwara RT, Bueno LL, Santos RL, de Carvalho TF, Garcia GM, Paes PRDO, Galdino AS, Chávez-Fumagalli MA, Melo MM, Silveira-Lemos D, Martins-Filho OA, Dutra WO, Mosqueira VCF, Giunchetti RC. Vaccination with Formulation of Nanoparticles Loaded with Leishmania amazonensis Antigens Confers Protection against Experimental Visceral Leishmaniasis in Hamster. Vaccines (Basel) 2023; 11:vaccines11010111. [PMID: 36679956 PMCID: PMC9863486 DOI: 10.3390/vaccines11010111] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Visceral leishmaniasis (VL) is a fatal disease caused by the protozoa Leishmania infantum for which dogs are the main reservoirs. A vaccine against canine visceral leishmaniasis (CVL) could be an important tool in the control of human and CVL by reducing the infection pressure of L. infantum. Despite the CVL vaccine available on the market, the Brazilian Ministry of Health did not implement the use of it in their control programs. In this sense, there is an urgent need to develop more efficient vaccines. In this study, the association between two polymeric nanoformulations, (poly (D, L-lactic) acid (PLA) polymer) loading Leishmania amazonensis antigens, was evaluated as a potential immunobiological agent against VL using golden hamsters as an experimental model. The results indicated that no significant adverse reactions were observed in animals vaccinated with LAPSmP. LAPSmP presented similar levels of total anti-Leishmania IgG as compared to LAPSmG. The LAPSmP and LAPSmG groups showed an intense reduction in liver and spleen parasitic load by qPCR. The LAPSmP and LAPSmG vaccines showed exceptional results, indicating that they may be promising candidates as a VL vaccine.
Collapse
Affiliation(s)
- Marco Antonio Cabrera González
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
- Laboratório de Desenvolvimento Galênico e Nanotecnologia, Escola de Farmácia, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
- Estación Experimental Agraria Baños del Inca, Instituto Nacional de Innovación Agraria, Cajamarca 06000, Peru
| | - Ana Alice Maia Gonçalves
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Jennifer Ottino
- Departamento de Parasitologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Jaqueline Costa Leite
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Lucilene Aparecida Resende
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Otoni Alves Melo-Júnior
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Patrícia Silveira
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Mariana Santos Cardoso
- Departamento de Parasitologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Renato Lima Santos
- Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | | | - Giani Martins Garcia
- Laboratório de Desenvolvimento Galênico e Nanotecnologia, Escola de Farmácia, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | | | - Alexsandro Sobreira Galdino
- Laboratório de Biotecnologia de Microrganismos, Universidade Federal de São João Del-Rei (UFSJ), Campus Centro Oeste, Divinópolis 35501-296, MG, Brazil
| | - Miguel Angel Chávez-Fumagalli
- Computational Biology and Chemistry Research Group, Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José S/N, Arequipa 04000, Peru
| | - Marília Martins Melo
- Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Denise Silveira-Lemos
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
| | - Olindo Assis Martins-Filho
- FIOCRUZ-Minas Gerais, Laboratório de Biomarcadores de Diagnóstico e Monitoração, Instituto René Rachou, Belo Horizonte 30190-002, MG, Brazil
| | - Walderez Ornelas Dutra
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais—INCT-DT, Belo Horizonte 31270-901, MG, Brazil
| | - Vanessa Carla Furtado Mosqueira
- Laboratório de Desenvolvimento Galênico e Nanotecnologia, Escola de Farmácia, Universidade Federal de Ouro Preto (UFOP), Ouro Preto 35400-000, MG, Brazil
| | - Rodolfo Cordeiro Giunchetti
- Departamento de Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
- Departamento de Parasitologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte 31270-901, MG, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais—INCT-DT, Belo Horizonte 31270-901, MG, Brazil
- Correspondence: or ; Tel.: +55-31-3409-3003
| |
Collapse
|
9
|
Leal-Silva T, Lopes CDA, Vieira-Santos F, Oliveira FMS, Kraemer L, Padrão LDLS, Amorim CCO, Souza JLN, Russo RC, Fujiwara RT, Magalhães LMD, Bueno LL. IL-17RA receptor signaling contributes to lung inflammation and parasite burden during Toxocara canis infection in mice. Front Immunol 2022; 13:864632. [PMID: 35844540 PMCID: PMC9277699 DOI: 10.3389/fimmu.2022.864632] [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: 01/28/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
IL-17 is a cytokine produced by innate and acquired immunity cells that have an action against fungi and bacteria. However, its action in helminth infections is unclear, including in Toxocara canis infection. Toxocariasis is a neglected zoonosis representing a significant public health problem with an estimated seroprevalence of 19% worldwide. In the present study, we describe the immunopathological action of IL-17RA in acute T. canis infection. C57BL/6j (WT) and IL-17RA receptor knockout (IL-17RA-/-) mice were infected with 1000 T. canis eggs. Mice were evaluated 3 days post-infection for parasite load and white blood cell count. Lung tissue was harvested for histopathology and cytokine expression. In addition, we performed multiparametric flow cytometry in the BAL and peripheral blood, evaluating phenotypic and functional changes in myeloid and lymphoid populations. We showed that IL-17RA is essential to control larvae load in the lung; however, IL-17RA contributed to pulmonary inflammation, inducing inflammatory nodular aggregates formation and presented higher pulmonary IL-6 levels. The absence of IL-17RA was associated with a higher frequency of neutrophils as a source of IL-4 in BAL, while in the presence of IL-17RA, mice display a higher frequency of alveolar macrophages expressing the same cytokine. Taken together, this study indicates that neutrophils may be an important source of IL-4 in the lungs during T. canis infection. Furthermore, IL-17/IL-17RA axis is important to control parasite load, however, its presence triggers lung inflammation that can lead to tissue damage.
Collapse
Affiliation(s)
- Thaís Leal-Silva
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Camila de Almeida Lopes
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flaviane Vieira-Santos
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Lima Silva Padrão
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Chiara Cássia Oliveira Amorim
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Jorge Lucas Nascimento Souza
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luisa Mourão Dias Magalhães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
10
|
Oliveira FMS, Kraemer L, Cavalcanti da Silva C, Nogueira DS, Gazzinelli-Guimarães AC, Gazzinelli-Guimarães PH, Barbosa FS, Resende NM, Caliari MV, Gaze ST, Bartholomeu DC, Fujiwara RT, Bueno LL. Nitric oxide contributes to liver inflammation and parasitic burden control in Ascaris suum infection. Exp Parasitol 2022; 238:108267. [PMID: 35550886 DOI: 10.1016/j.exppara.2022.108267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/29/2021] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Human ascariasis is one of the most prevalent neglected tropical diseases worldwide. The immune response during human ascariasis is characterized by Th2 polarization and a mixed Th2/Th17 response during the pathogenesis of experimental larval ascariasis. Cytokines and other pro-inflammatory mediators, such as nitric oxide (NO), are involved in helminthic infections. However, the role of NO in ascariasis remains unclear. OBJECTIVES Given the importance of NO in inflammation, we aimed to determine the immunological and histopathological alterations in the livers of C57BL/6 iNOS-/- mice during A. suum infection. METHODS In this study, parasitic load was evaluated in the livers of wild type C57BL/6 and C57BL/6 iNOS-/- mice infected with A. suum. Histopathological and morphometric analyses and analysis of serum cytokines via Cytometric Bead Array were performed, and the activity of eosinophil peroxidase and myeloperoxidase of neutrophils in the tissues were determined. RESULTS The results showed that NO is important for controlling parasitic load during infection by A. suum. C57BL/6iNOS-/- mice showed reduced inflammatory processes and less tissue damage during liver larval migration of A. suum, which is associated with a reduction in serum levels of pro-inflammatory cytokines. CONCLUSIONS We demonstrated that NO is a crucial inflammatory molecule during Ascaris sp. infection and controls the establishment of the parasite and the development of the host immune response in the liver.
Collapse
Affiliation(s)
- Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Caroline Cavalcanti da Silva
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Denise Silva Nogueira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Ana Clara Gazzinelli-Guimarães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Pedro Henrique Gazzinelli-Guimarães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | | | - Nathalia Maria Resende
- Laboratory of Sciences Applied to Immunology and Biochemistry of Health and Sport. Department of of Physical Education, Universidade Federal de Lavras, Brazil
| | - Marcelo Vidigal Caliari
- Laboratory of Protozooses, Department of Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Soraya Torres Gaze
- Cellular and Molecular Immunology Group, René Rachou Institute, Oswaldo Cruz Foundation - FIOCRUZ, Brazil
| | - Daniella Castanheira Bartholomeu
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil.
| |
Collapse
|
11
|
Leal-Silva T, Lopes CDA, Vieira-Santos F, Oliveira FMS, Kraemer L, Padrão LDLS, Amorim CCO, Souza JLN, Barbosa FS, Rachid MA, Russo RC, Fujiwara RT, Bueno LL. Tissue eosinophilia correlates with mice susceptibility, granuloma formation, and damage during Toxocara canis infection. Parasitology 2022; 149:1-38. [PMID: 35139931 DOI: 10.1017/s0031182022000075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractAn increase in peripheral blood eosinophils in helminth infections is expected, and these cells are known to promote immunity against these parasites. However, studies have suggested that in some specific helminths, eosinophils may promote the needs and longevity of these parasites, and their role in these infections remains undefined, including in Toxocara canis infection. Thus, this study aimed to investigate the role of eosinophils in the context of larval migration of T. canis and the immunopathological aspects of infection. For this, we used wild-type mice and mice genetically deficient for the transcription factor GATA-binding factor 1 (GATA1−/−), infected with 1000 eggs of T. canis. At 0, 3, 14 and 63 days post-infection, parasite load, tissue cytokine production, leucocyte profile, bronchoalveolar lavage cells and histopathological analyses were carried out. Collectively, our results demonstrate that the presence of eosinophils mediates susceptibility to T. canis, inducing leucocytosis and the formation of granulomas, increasing the pulmonary and cerebral parasite load, and reducing the number of neutrophils, which may be necessary to control the infection.
Collapse
Affiliation(s)
- Thaís Leal-Silva
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
- Post-graduation Program in Health Sciences: Infectious Diseases and Tropical Medicine, Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Camila de Almeida Lopes
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Flaviane Vieira-Santos
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Luiza de Lima Silva Padrão
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
- Post-graduation Program in Health Sciences: Infectious Diseases and Tropical Medicine, Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Chiara Cássia Oliveira Amorim
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Jorge Lucas Nascimento Souza
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Fernando Sérgio Barbosa
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
| | - Milene Alvarenga Rachid
- Laboratory of Protozooses, Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
- Post-graduation Program in Health Sciences: Infectious Diseases and Tropical Medicine, Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais,Belo Horizonte, Brazil
- Post-graduation Program in Health Sciences: Infectious Diseases and Tropical Medicine, Faculdade de Medicina, Federal University of Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
12
|
Gazzinelli-Guimarães AC, Nogueira DS, Amorim CCO, Oliveira FMS, Coqueiro-Dos-Santos A, Carvalho SAP, Kraemer L, Barbosa FS, Fraga VG, Santos FV, de Castro JC, Russo RC, Akamatsu MA, Ho PL, Bottazzi ME, Hotez PJ, Zhan B, Bartholomeu DC, Bueno LL, Fujiwara RT. ASCVac-1, a Multi-Peptide Chimeric Vaccine, Protects Mice Against Ascaris suum Infection. Front Immunol 2021; 12:788185. [PMID: 34992603 PMCID: PMC8724438 DOI: 10.3389/fimmu.2021.788185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/23/2021] [Indexed: 11/29/2022] Open
Abstract
Control of human ascariasis, the most prevalent neglected tropical disease globally affecting 450 million people, mostly relies on mass drug administration of anthelmintics. However, chemotherapy alone is not efficient due to the high re-infection rate for people who live in the endemic area. The development of a vaccine that reduces the intensity of infection and maintains lower morbidity should be the primary target for infection control. Previously, our group demonstrated that immunization with crude Ascaris antigens in mice induced an IgG-mediated protective response with significant worm reduction. Here, we aimed to develop a multipeptide chimera vaccine based on conserved B-cell epitopes predicted from 17 common helminth proteomes using a bioinformatics algorithm. More than 480 B-cell epitopes were identified that are conserved in all 17 helminths. The Ascaris-specific epitopes were selected based on their reactivity to the pooled sera of mice immunized with Ascaris crude antigens or infected three times with A. suum infective eggs. The top 35 peptides with the strongest reactivity to Ascaris immune serum were selected to construct a chimeric antigen connected in sequence based on conformation. This chimera, called ASCVac-1, was produced as a soluble recombinant protein in an Escherichia coli expression system and, formulated with MPLA, was used to immunize mice. Mice immunized with ASCVac-1/MPLA showed around 50% reduced larvae production in the lungs after being challenged with A. suum infective eggs, along with significantly reduced inflammation and lung tissue/function damage. The reduced parasite count and pathology in infected lungs were associated with strong Th2 immune responses characterized by the high titers of antigen-specific IgG and its subclasses (IgG1, IgG2a, and IgG3) in the sera and significantly increased IL-4, IL-5, IL-13 levels in lung tissues. The reduced IL-33 titers and stimulated eosinophils were also observed in lung tissues and may also contribute to the ASCVac-1-induced protection. Taken together, the preclinical trial with ASCVac-1 chimera in a mouse model demonstrated its significant vaccine efficacy associated with strong IgG-based Th2 responses, without IgE induction, thus reducing the risk of an allergic response. All results suggest that the multiepitope-based ASCVac-1 chimera is a promising vaccine candidate against Ascaris sp. infections.
Collapse
Affiliation(s)
| | - Denise Silva Nogueira
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | | | - Lucas Kraemer
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Vanessa Gomes Fraga
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flaviane Vieira Santos
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Remo Castro Russo
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Milena Apetito Akamatsu
- BioIndustrial Division, Butantan Institute, Sao Paulo Secretary of Health, São Paulo, Brazil
| | - Paulo Lee Ho
- BioIndustrial Division, Butantan Institute, Sao Paulo Secretary of Health, São Paulo, Brazil
| | - Maria Elena Bottazzi
- Texas Children’s Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Peter J. Hotez
- Texas Children’s Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Bin Zhan
- Texas Children’s Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | | | - Lilian Lacerda Bueno
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
- *Correspondence: Ricardo Toshio Fujiwara,
| |
Collapse
|
13
|
Nogueira DS, de Oliveira LM, Amorim CCO, Gazzinelli-Guimarães AC, Barbosa FS, Oliveira FMS, Kraemer L, Mattos M, Cardoso MS, Resende NM, Clímaco MDC, Negrão-Corrêa DA, Faria AMC, Caliari MV, Bueno LL, Gaze S, Russo RC, Gazzinelli-Guimarães PH, Fujiwara RT. Eosinophils mediate SIgA production triggered by TLR2 and TLR4 to control Ascaris suum infection in mice. PLoS Pathog 2021; 17:e1010067. [PMID: 34784389 PMCID: PMC8631680 DOI: 10.1371/journal.ppat.1010067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 11/30/2021] [Accepted: 10/25/2021] [Indexed: 12/15/2022] Open
Abstract
Human ascariasis is the most prevalent but neglected tropical disease in the world, affecting approximately 450 million people. The initial phase of Ascaris infection is marked by larval migration from the host's organs, causing mechanical injuries followed by an intense local inflammatory response, which is characterized mainly by neutrophil and eosinophil infiltration, especially in the lungs. During the pulmonary phase, the lesions induced by larval migration and excessive immune responses contribute to tissue remodeling marked by fibrosis and lung dysfunction. In this study, we investigated the relationship between SIgA levels and eosinophils. We found that TLR2 and TLR4 signaling induces eosinophils and promotes SIgA production during Ascaris suum infection. Therefore, control of parasite burden during the pulmonary phase of ascariasis involves eosinophil influx and subsequent promotion of SIgA levels. In addition, we also demonstrate that eosinophils also participate in the process of tissue remodeling after lung injury caused by larval migration, contributing to pulmonary fibrosis and dysfunction in re-infected mice. In conclusion, we postulate that eosinophils play a central role in mediating host innate and humoral immune responses by controlling parasite burden, tissue inflammation, and remodeling during Ascaris suum infection. Furthermore, we suggest that the use of probiotics can induce eosinophilia and SIgA production and contribute to controlling parasite burden and morbidity of helminthic diseases with pulmonary cycles.
Collapse
Affiliation(s)
- Denise Silva Nogueira
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana Maria de Oliveira
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe, Aracajú, Brazil
| | - Chiara Cássia Oliveira Amorim
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Clara Gazzinelli-Guimarães
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Fabrício Marcus Silva Oliveira
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Matheus Mattos
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mariana Santos Cardoso
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Marianna de Carvalho Clímaco
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Ana Maria Caetano Faria
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Department of Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Soraya Gaze
- René Rachou Institute, Oswaldo Cruz Foundation–FIOCRUZ, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Ricardo Toshio Fujiwara
- Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
14
|
Siqueira WF, Viana AG, Reis Cunha JL, Rosa LM, Bueno LL, Bartholomeu DC, Cardoso MS, Fujiwara RT. The increased presence of repetitive motifs in the KDDR-plus recombinant protein, a kinesin-derived antigen from Leishmania infantum, improves the diagnostic performance of serological tests for human and canine visceral leishmaniasis. PLoS Negl Trop Dis 2021; 15:e0009759. [PMID: 34534217 PMCID: PMC8480608 DOI: 10.1371/journal.pntd.0009759] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/29/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023] Open
Abstract
Visceral leishmaniasis (VL) is caused by protozoa belonging to the Leishmania donovani complex and is considered the most serious and fatal form among the different types of leishmaniasis, if not early diagnosed and treated. Among the measures of disease control stand out the management of infected dogs and the early diagnosis and appropriate treatment of human cases. Several antigens have been characterized for use in the VL diagnosis, among them are the recombinant kinesin-derived antigens from L. infantum, as rK39 and rKDDR. The main difference between these antigens is the size of the non-repetitive kinesin region and the number of repetitions of the 39 amino acid degenerate motif (6.5 and 8.5 repeats in rK39 and rKDDR, respectively). This repetitive region has a high antigenicity score. To evaluate the effect of increasing the number of repeats on diagnostic performance, we designed the rKDDR-plus antigen, containing 15.3 repeats of the 39 amino acid degenerate motif, besides the absence of the non-repetitive portion from L. infantum kinesin. Its performance was evaluated by enzyme-linked immunosorbent assay (ELISA) and rapid immunochromatographic test (ICT), and compared with the kinesin-derived antigens (rKDDR and rK39). In ELISA with human sera, all recombinant antigens had a sensitivity of 98%, whereas the specificity for rKDDR-plus, rKDDR and rK39 was 100%, 96% and 71%, respectively. When evaluated canine sera, the ELISA sensitivity was 97% for all antigens, and the specificity for rKDDR-plus, rKDDR and rK39 was 98%, 91% and 83%, respectively. Evaluation of the ICT/rKDDR-plus, using human sera, showed greater diagnostic sensitivity (90%) and specificity (100%), when compared to the IT LEISH (79% and 98%, respectively), which is based on the rK39 antigen. These results suggest that the increased presence of repetitive motifs in the rKDDR-plus protein improves the diagnostic performance of serological tests by increasing the specificity and accuracy of the diagnosis.
Collapse
Affiliation(s)
- Williane Fernanda Siqueira
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Agostinho Gonçalves Viana
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - João Luís Reis Cunha
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Leticia Mansur Rosa
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana Santos Cardoso
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Programa de Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
15
|
Oliveira YLDC, Oliveira LM, Cirilo TM, Fujiwara RT, Bueno LL, Dolabella SS. T follicular helper cells: Their development and importance in the context of helminthiasis. Clin Immunol 2021; 231:108844. [PMID: 34478881 DOI: 10.1016/j.clim.2021.108844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/25/2021] [Accepted: 08/28/2021] [Indexed: 10/20/2022]
Abstract
The development of T follicular helper cells (Tfh) is a multifactorial process that occurs in multiple stages. After their activation the Tfh cells interact with the B cells to complete their differentiation. During this process, the Tfh cells begin to express canonical molecules such as the transcription factor B-cell lymphoma 6 protein, the CXC chemokine receptors type 5, and the inducible T-cell costimulator, as well as secreting other molecules such as IL-21. This whole process is regulated positively and negatively by several factors so that the best response is offered in the face of diseases of various origins, among them helminthiasis. In this context, the role of circulating Tfh, IL-4 and IgG subtypes is essential for an effective response against these pathogens. In this review, the migration process and the differentiation of Tfh, the regulation, their cell subtypes and the role of Tfh in the context of helminth infections will be addressed.
Collapse
Affiliation(s)
| | - Luciana Maria Oliveira
- Departamento de Morfologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
| | - Tatyane Martins Cirilo
- Programa de Pós-Graduação em Biologia Parasitária, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
| | - Ricardo Toshio Fujiwara
- Programa de Pós-Graduação em Biologia Parasitária, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil; Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil.
| | - Silvio Santana Dolabella
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil; Programa de Pós-Graduação em Biologia Parasitária, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil.
| |
Collapse
|
16
|
Leal-Silva T, Vieira-Santos F, Oliveira FMS, Padrão LDLS, Kraemer L, da Paixão Matias PH, de Almeida Lopes C, Loiola Ruas AC, de Azevedo IC, Nogueira DS, Rachid MA, Caliari MV, Castro Russo R, Fujiwara RT, Bueno LL. Detrimental role of IL-33/ST2 pathway sustaining a chronic eosinophil-dependent Th2 inflammatory response, tissue damage and parasite burden during Toxocara canis infection in mice. PLoS Negl Trop Dis 2021; 15:e0009639. [PMID: 34324507 PMCID: PMC8354467 DOI: 10.1371/journal.pntd.0009639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 08/10/2021] [Accepted: 07/09/2021] [Indexed: 12/23/2022] Open
Abstract
Toxocariasis is a neglected disease that affects people around the world. Humans become infected by accidental ingestion of eggs containing Toxocara canis infective larvae, which upon reaching the intestine, hatch, penetrate the mucosa and migrate to various tissues such as liver, lungs and brain. Studies have indicated that Th2 response is the main immune defense mechanism against toxocariasis, however, there are still few studies related to this response, mainly the IL-33/ST2 pathway. Some studies have reported an increase in IL-33 during helminth infections, including T. canis. By binding to its ST2 receptor, IL-33 stimulating the Th2 polarized immune cell and cytokine responses. Thus, we aimed to investigate the role of the IL-33/ST2 pathway in the context of T. canis larval migration and the immunological and pathophysiological aspects of the infection in the liver, lungs and brain from Wild-Type (WT) BALB/c background and genetically deficient mice for the ST2 receptor (ST2-/-). The most important findings revealed that the IL-33/ST2 pathway is involved in eosinophilia, hepatic and cerebral parasitic burden, and induces the formation of granulomas related to tissue damage and pulmonary dysfunction. However, ST2-/- mice, the immune response was skewed to Th1/Th17 type than Th2, that enhanced the control of parasite burden related to IgG2a levels, tissue macrophages infiltration and reduced lung dysfunction. Collectively, our results demonstrate that the Th2 immune response triggered by IL-33/ST2 pathway mediates susceptibility to T. canis, related to parasitic burden, eosinophilia and granuloma formation in which consequently contributes to tissue inflammation and injury. Toxocariasis is a neglected disease caused by Toxocara canis, which has 19% worldwide seroprevalence, and is associated with socioeconomic, geographic and environmental factors. Humans become infected by accidental ingestion of T. canis eggs present in contaminated food, water or soil. After ingestion, the larvae hatch in the intestine and can reach various tissues such as liver, lung and brain. Helminth infections usually trigger a Th2 immune response in the host, by releasing cytokines such as IL-4, IL-5, IL-13 and IL-33. IL-33 is an alarmin that binds to the ST2 receptor, and some studies have observed an increase in this cytokine in toxocariasis, however there are no studies regarding the IL-33/ST2 role in this infection. Thus, we evaluated the influence of this pathway by analyzing immunological and pathophysiological aspects in T. canis-infected mice. Our results demonstrated that the IL-33/ST2 pathway is related to parasite burden on the liver and brain and also increases the number of eosinophils in the blood and tissues. In addition, it involved with the pulmonary immune response and granulomas with impact in lung function. In conclusion, the IL-33/ST2 pathway governs the host susceptibility to T. canis in mice.
Collapse
Affiliation(s)
- Thaís Leal-Silva
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Post-graduation Program in Health Sciences: Infectious Diseases and Tropical Medicine, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flaviane Vieira-Santos
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Lima Silva Padrão
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Pablo Hemanoel da Paixão Matias
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Camila de Almeida Lopes
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Cristina Loiola Ruas
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isabella Carvalho de Azevedo
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Denise Silva Nogueira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Milene Alvarenga Rachid
- Laboratory of Protozooses, Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Laboratory of Protozooses, Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- * E-mail:
| |
Collapse
|
17
|
Vieira-Santos F, Leal-Silva T, de Lima Silva Padrão L, Ruas ACL, Nogueira DS, Kraemer L, Oliveira FMS, Caliari MV, Russo RC, Fujiwara RT, Bueno LL. Concomitant experimental coinfection by Plasmodium berghei NK65-NY and Ascaris suum downregulates the Ascaris-specific immune response and potentiates Ascaris-associated lung pathology. Malar J 2021; 20:296. [PMID: 34210332 PMCID: PMC8248286 DOI: 10.1186/s12936-021-03824-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 06/17/2021] [Indexed: 12/22/2022] Open
Abstract
Background Ascariasis and malaria are highly prevalent parasitic diseases in tropical regions and often have overlapping endemic areas, contributing to high morbidity and mortality rates in areas with poor sanitary conditions. Several studies have previously aimed to correlate the effects of Ascaris-Plasmodium coinfections but have obtained contradictory and inconclusive results. Therefore, the present study aimed to investigate parasitological and immunopathological aspects of the lung during murine experimental concomitant coinfection by Plasmodium berghei and Ascaris suum during larvae ascariasis. Methods C57BL/6J mice were inoculated with 1 × 104P. berghei strain NK65-NY-infected red blood cells (iRBCs) intraperitoneally and/or 2500 embryonated eggs of A. suum by oral gavage. P. berghei parasitaemia, morbidity and the survival rate were assessed. On the seventh day postinfection (dpi), A. suum lung burden analysis; bronchoalveolar lavage (BAL); histopathology; NAG, MPO and EPO activity measurements; haematological analysis; and respiratory mechanics analysis were performed. The concentrations of interleukin (IL)-1β, IL-12/IL-23p40, IL-6, IL-4, IL-33, IL-13, IL-5, IL-10, IL-17A, IFN-γ, TNF and TGF-β were assayed by sandwich ELISA. Results Animals coinfected with P. berghei and A. suum show decreased production of type 1, 2, and 17 and regulatory cytokines; low leukocyte recruitment in the tissue; increased cellularity in the circulation; and low levels of NAG, MPO and EPO activity that lead to an increase in larvae migration, as shown by the decrease in larvae recovered in the lung parenchyma and increase in larvae recovered in the airway. This situation leads to severe airway haemorrhage and, consequently, an impairment respiratory function that leads to high morbidity and early mortality. Conclusions This study demonstrates that the Ascaris-Plasmodium interaction is harmful to the host and suggests that this coinfection may potentiate Ascaris-associated pathology by dampening the Ascaris-specific immune response, resulting in the early death of affected animals. Supplementary Information The online version contains supplementary material available at 10.1186/s12936-021-03824-w.
Collapse
Affiliation(s)
- Flaviane Vieira-Santos
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Thaís Leal-Silva
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Lima Silva Padrão
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Cristina Loiola Ruas
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Denise Silva Nogueira
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Laboratory of Protozooses, Institute of Biological Sciences, Department of General Pathology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Institute of Biological Sciences, Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
18
|
Pinheiro GRG, Ferreira LL, Teixeira Silva AL, Cardoso MS, Ferreira-Júnior Á, Steindel M, Grisard EC, Miletti LC, Bartholomeu DC, Bueno LL, Santos RL, Fujiwara RT. A recombinant protein (MyxoTLm) for the serological diagnosis of acute and chronic Trypanosoma vivax infection in cattle. Vet Parasitol 2021; 296:109495. [PMID: 34147019 DOI: 10.1016/j.vetpar.2021.109495] [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: 04/19/2021] [Revised: 05/22/2021] [Accepted: 06/04/2021] [Indexed: 11/19/2022]
Abstract
Human trypanosomiases and animal trypanosomoses are caused by distinct protozoan parasites of the genus Trypanosoma. The etiological agents of bovine trypanosomosis (BT) are T. vivax, T. congolense, or T. brucei, whose acute infections are initially characterized by hyperthermia, following moderate to severe anemia, subcutaneous edema, lethargy, reduced milk production, progressive weight loss, enlarged lymph nodes, reproductive disorders and death. Animals that survive the acute phase might recover and progress to the chronic, often asymptomatic, phase of infection. Despite their low sensitivity due to the characteristic low parasitemia, simple and costless direct parasitological examinations are the preferred diagnostic methods for animals. Thus, most of the epidemiological studies of BT are based on serological techniques using crude antigen. In this study, we describe the use of the MyxoTLm recombinant protein as an antigen on serological assays. Anti-T. vivax IgM and anti-T. vivax IgG ELISA assays using purified MyxoTLm revealed specificity rates of 91.30 % and 95.65 % and sensitivity rates of 82.35 % and 88.23 %, respectively, being higher than reported for crude antigens. Also, MyxoTLm demonstrated a good performance to detect IgM (ROC curve area = 0.8568) and excellent performance to detect IgG (ROC curve area = 0.9565) when compared to a crude antigen. T. evansi crude antigen used in the indirect anti-T. vivax IgM ELISA reached 70.58 % sensitivity and 78.26 % specificity, and had a lower test performance (ROC curve area = 0.7363). When applied to the anti-T. vivax IgG ELISA, the crude antigen reached 82.35 % sensitivity and 69.56 % specificity, also presenting a low performance with area under the ROC curve of 0.7570. Therefore, the use of MyxoTLm as an antigen on serological diagnosis of BT revealed to increase the sensitivity and the specificity if compared to crude antigens.
Collapse
Affiliation(s)
| | - Lorena Lopes Ferreira
- Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Luiza Teixeira Silva
- Instituto de Farmacologia e Biologia Molecular, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Mariana Santos Cardoso
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Álvaro Ferreira-Júnior
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Mario Steindel
- Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Edmundo Carlos Grisard
- Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Luiz Claudio Miletti
- Centro de Ciências Agroveterinárias, Universidade do Estado de Santa Catarina, Lages, Santa Catarina, Brazil
| | | | - Lilian Lacerda Bueno
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Renato Lima Santos
- Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
19
|
Mesquita SG, Rodrigues-Luiz GF, Reis-Cunha JL, Cardoso MS, De Mendonça CLF, Bueno LL, Fujiwara RT, Pinto HA, Caldeira RL, Bartholomeu DC. A multiplex PCR protocol for rapid differential identification of four families of trematodes with medical and veterinary importance transmitted by Biomphalaria Preston, 1910 snails. Acta Trop 2020; 211:105655. [PMID: 32783955 DOI: 10.1016/j.actatropica.2020.105655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 10/23/2022]
Abstract
Trematodes have complex life cycles with multiple hosts. Biomphalaria snails commonly act as the first intermediate hosts of several species that can affect human and animal health. The specific identification of larval trematodes found in snails is difficult and limited, since the taxonomy of these flukes is based on morphological traits of the adults found in vertebrates. Despite recent advances worldwide, studies aiming at the use of molecular tools for the identification of cercariae found in snails are scarce in the South America. In fact, most studies are focused on Schistosoma mansoni, with few efforts directed towards the identification of larvae of other parasites found in planorbids. When reported, these other parasites are identified as cercarial types, an artificial morphological system of classification. Therefore, alternative strategies for a correct, rapid and inexpensive identification of larval trematodes found in Biomphalaria are needed. This work aimed at developing a methodology capable of distinguishing four important families of trematodes (Clinostomidae, Echinostomatidae, Schistosomatidae and Strigeidae) commonly found infecting species of Biomphalaria. Using the rDNA sequences of 34 species as input for the online tool TipMT, we designed trematode family-specific primers targeting the ITS region optimized to be used in multiplex PCR. The panel of primers identified in this study was effective at the same PCR condition. The specificity of the primers was confirmed, and the PCR sensitivity ranged from 0.1 ng to 1 ag of the DNA of the parasite. This methodology was also effective for the detection of coinfection. Through a simple, fast, accurate, and inexpensive methodology, it is possible to properly identify the trematode families included in this study in a single PCR reaction. A family level identification provides important information about probable hosts, pattern of life cycle and possible impacts that the infection generates in a specific region, thus allowing the design of better control strategies, especially for those infections that have medical and veterinary importance.
Collapse
|
20
|
Mourão Dias Magalhães L, Silva Araújo Passos L, Toshio Fujiwara R, Lacerda Bueno L. Immunopathology and modulation induced by hookworms: From understanding to intervention. Parasite Immunol 2020; 43:e12798. [PMID: 33012113 DOI: 10.1111/pim.12798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/21/2020] [Accepted: 09/25/2020] [Indexed: 12/15/2022]
Abstract
Hookworm infection is considered the most prevalent human soil-transmitted helminth infection affecting approximately 500 million people and accounting for 3.2 million disability-adjusted life years lost annually. As with many other neglected tropical diseases, no international surveillance mechanisms that show accurate data on the prevalence of hookworm infection are in place, thus hindering strategies to control parasite transmission. In this review, we unravel the current knowledge in immunopathology and immunoregulation of hookworm infection and present discoveries in drug therapies based on the capability of hookworms to regulate inflammation to treat allergic, inflammatory and metabolic diseases. Additionally, we highlight potential vaccine development and treatments and propose avenues for further inquiry.
Collapse
Affiliation(s)
| | - Livia Silva Araújo Passos
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
21
|
Ferreira SR, Machado ART, Furtado LF, Gomes JHDS, de Almeida RM, de Oliveira Mendes T, Maciel VN, Barbosa FS, Carvalho LM, Bueno LL, Bartholomeu DC, de Araújo JV, Rabelo EML, de Pádua RM, Pimenta LPS, Fujiwara RT. Ketamine can be produced by Pochonia chlamydosporia: an old molecule and a new anthelmintic? Parasit Vectors 2020; 13:527. [PMID: 33081837 PMCID: PMC7574484 DOI: 10.1186/s13071-020-04402-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/09/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Infection by nematodes is a problem for human health, livestock, and agriculture, as it causes deficits in host health, increases production costs, and incurs a reduced food supply. The control of these parasites is usually done using anthelmintics, which, in most cases, have not been fully effective. Therefore, the search for new molecules with anthelmintic potential is necessary. METHODS In the present study, we isolated and characterized molecules from the nematophagous fungus Pochonia chlamydosporia and tested these compounds on three nematodes: Caenorhabditis elegans; Ancylostoma ceylanicum; and Ascaris suum. RESULTS The ethyl acetate extract showed nematicidal activity on the nematode model C. elegans. We identified the major substance present in two sub-fractions of this extract as ketamine. Then, we tested this compound on C. elegans and the parasites A. ceylanicum and A. suum using hamsters and mice as hosts, respectively. We did not find a difference between the animal groups when considering the number of worms recovered from the intestines of animals treated with ketamine (6 mg) and albendazole (P > 0.05). The parasite burden of larvae recovered from the lungs of mice treated with ketamine was similar to those treated with ivermectin. CONCLUSIONS The results presented here demonstrate the nematicidal activity of ketamine in vitro and in vivo, thus confirming the nematicidal potential of the molecule present in the fungus P. chlamydosporia may consist of a new method of controlling parasites.
Collapse
Affiliation(s)
- Sebastiao Rodrigo Ferreira
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.,Centro de Formação em Ciências da Saúde, Universidade Federal do Sul da Bahia, Praça Joana Angélica, 250, Teixeira de Freitas, BA, 45988-058, Brazil
| | - Alan Rodrigues T Machado
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.,Departamento de Ciências Exatas, Universidade do Estado de Minas Gerais, Unidade João Monlevade, João Monlevade, MG, 35930-314, Brazil
| | - Luís Fernando Furtado
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.,Universidade do Estado de Minas Gerais, Unidade Passos, Avenida Juca Stockler, Nossa Sra. das Gracas, 1130, Passos, MG, 37900-106, Brazil
| | - Jose Hugo de S Gomes
- Departamento de Produtos Naturais, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Raquel M de Almeida
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Thiago de Oliveira Mendes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36.570-000, Brazil
| | - Valentina N Maciel
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Fernando Sergio Barbosa
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Lorendane M Carvalho
- Departamento de Medicina Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36.570-000, Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Jackson Victor de Araújo
- Departamento de Medicina Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Viçosa, MG, 36.570-000, Brazil
| | - Elida M L Rabelo
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Rodrigo Maia de Pádua
- Departamento de Produtos Naturais, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Lucia Pinheiro Santos Pimenta
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.
| |
Collapse
|
22
|
Grossi de Oliveira AL, Chaves AT, Santos Cardoso M, Gomide Pinheiro GR, Parreiras de Jesus AC, de Faria Grossi MA, Lyon S, Lacerda Bueno L, da Costa Rocha MO, Toshio Fujiwara R, Alves da Silva Menezes C. Hypovitaminosis D and reduced cathelicidin are strongly correlated during the multidrug therapy against leprosy. Microb Pathog 2020; 147:104373. [PMID: 32645421 DOI: 10.1016/j.micpath.2020.104373] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/25/2020] [Accepted: 07/01/2020] [Indexed: 12/24/2022]
Abstract
Mycobacterium leprae infection depends on the competence of the host immune defense to induce effective protection against this intracellular pathogen. The present study investigated the serum levels of vitamin D and the antimicrobial peptide cathelicidin, to determine the statistical correlation between them in leprosy patients before and post-six months of multidrug therapy (MDT), household contacts, and healthy individuals. Previous studies associated these molecules with high risks to develop mycobacterial diseases, such as tuberculosis and leprosy. A total of 34 leprosy patients [paucibacillary (n = 14), multibacillary (n = 20)], and 25 household contacts were recruited. Eighteen healthy adults were selected as a control group. Serum concentrations of vitamin D (25(OH)VD3) and cathelicidin were measured using high-performance liquid chromatography (HPLC), and an enzyme-linked immunosorbent assay (ELISA) kit, respectively. There were no significant differences in serum levels of 25(OH)VD3 between all groups, and the overall prevalence rate of vitamin D deficiency was 67.1%. Cathelicidin levels were significantly lower in both untreated and treated patients when compared to controls and household contacts (p < 0.05). Strong correlations between hypovitaminosis D and reduced cathelicidin in untreated (r = 0.86) and post-six months of MDT (r = 0.79) leprosy patients were observed. These results suggest that vitamin D status and cathelicidin levels are strongly correlated during multidrug therapy for leprosy and nutritional supplementation from the beginning of treatment could strengthen the immune response against leprosy.
Collapse
Affiliation(s)
| | - Ana Thereza Chaves
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana Santos Cardoso
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | | | - Sandra Lyon
- Hospital Eduardo de Menezes, Fundação Hospitalar do Estado de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Ricardo Toshio Fujiwara
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | |
Collapse
|
23
|
de Oliveira ALG, Fraga VG, Sernizon-Guimarães N, Cardoso MS, Viana AG, Bueno LL, Bartholomeu DC, da Silva Menezes CA, Fujiwara RT. Diagnostic accuracy of tests using recombinant protein antigens of Mycobacterium leprae for leprosy: A systematic review. J Infect Public Health 2020; 13:1078-1088. [PMID: 32299687 DOI: 10.1016/j.jiph.2019.12.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 01/24/2023] Open
Abstract
The aim of this systematic review was to investigate the studies that evaluated the sensitivity and specificity of serologic tests using recombinant protein antigens from Mycobacterium leprae for leprosy diagnosis. We included 13 studies that were available in PubMed, Brazilian Virtual Library of Health, Web of Science, ScienceDirect and Scopus. From these studies, we found that the recombinant serine-rich 45-kDa protein of M. leprae (ML0411) demonstrated high performance for multibacillary (MB) also to paucibacillary (PB) patients, although this study was tested only for Indian population. Despite that, studies using the ND-O-LID antigen have been able to more accurately identify new cases of leprosy among people living in endemic or non-endemic areas and household contacts in Brazil, Colombia, and the Philippines, especially when combined with other biomarkers. Finally, low sensitivity values for PB patients' antibodies response remain challenging for tests intended to diagnose clinical forms that comprise this classification in leprosy.
Collapse
Affiliation(s)
- Ana Laura Grossi de Oliveira
- Post-Graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.
| | - Vanêssa Gomes Fraga
- Department of Parasitology, Institute of Biological Sciences (ICB), UFMG, Brazil.
| | | | | | | | - Lilian Lacerda Bueno
- Department of Parasitology, Institute of Biological Sciences (ICB), UFMG, Brazil.
| | | | - Cristiane Alves da Silva Menezes
- Department of Clinical and Toxicological Analyses, School of Pharmacy, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.
| | - Ricardo Toshio Fujiwara
- Post-Graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil; Department of Parasitology, Institute of Biological Sciences (ICB), UFMG, Brazil.
| |
Collapse
|
24
|
Oliveira FMS, da Paixão Matias PH, Kraemer L, Gazzinelli-Guimarães AC, Santos FV, Amorim CCO, Nogueira DS, Freitas CS, Caliari MV, Bartholomeu DC, Bueno LL, Russo RC, Fujiwara RT. Comorbidity associated to Ascaris suum infection during pulmonary fibrosis exacerbates chronic lung and liver inflammation and dysfunction but not affect the parasite cycle in mice. PLoS Negl Trop Dis 2019; 13:e0007896. [PMID: 31765381 PMCID: PMC6901262 DOI: 10.1371/journal.pntd.0007896] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 06/07/2019] [Revised: 12/09/2019] [Accepted: 10/31/2019] [Indexed: 12/12/2022] Open
Abstract
Ascariasis is considered the most neglected tropical disease, and is a major problem for the public health system. However, idiopathic pulmonary fibrosis (IPF) is a result of chronic extracellular deposition of matrix in the pulmonary parenchyma, and thickening of the alveolar septa, which reduces alveolar gas exchange. Considering the high rates of ascariasis and pulmonary fibrosis, we believe that these two diseases may co-exist and possibly lead to comorbidities. We therefore investigated the mechanisms involved in comorbidity of Ascaris suum (A. suum) infection, which could interfere with the progression of pulmonary fibrosis. In addition, we evaluated whether a previous lung fibrosis could interfere with the pulmonary cycle of A. suum in mice. The most important findings related to comorbidity in which A. suum infection exacerbated pulmonary and liver injury, inflammation and dysfunction, but did not promote excessive fibrosis in mice during the investigated comorbidity period. Interestingly, we found that pulmonary fibrosis did not alter the parasite cycle that transmigrated preferentially through preserved but not fibrotic areas of the lungs. Collectively, our results demonstrate that A. suum infection leads to comorbidity, and contributes to the aggravation of pulmonary dysfunction during pulmonary fibrosis, which also leads to significant liver injury and inflammation, without changing the A. suum cycle in the lungs. Ascariasis is considered a major problem for the public health system, which has an estimated 800 million infected people worldwide. It occurs in the United States, Africa, Asia, and Latin America, and is generally associated with poverty and precarious health conditions. Pulmonary fibrosis affects 14–63 people per 100,000 habitants/year, and is characterized by collagen deposition and alveolar wall thickening. The comorbidities caused by infections are commonly associated with pulmonary fibrosis exacerbations, poor prognosis, and high mortality. Despite the comorbidities caused by helminth infections, which display a pulmonary parasitic cycle such as that of Ascaris, there is no evidence relating to pulmonary fibrosis progression, possibly because Ascariasis is considered a neglected disease. We evaluated the role of Ascaris during pulmonary fibrosis. We considered two simple questions: (1) Whether Ascaris infection could protect or aggravate fibrosis (comorbidities) and (2) whether pulmonary fibrosis could change the cycle of Ascaris as a result of increased alveolar thickening, larvae retention, and the limitation of influx into airways. We answered both questions as follows: (1) Ascaris infection exacerbates pulmonary and liver injury and inflammation, but not fibrosis; and (2) Pulmonary fibrosis did not alter the course of Ascaris cycle in lungs during transmigration into airways, because Ascaris preferentially seeks and penetrates into the lung areas, which are thought to be preserved, but not into fibrotic areas.
Collapse
Affiliation(s)
- Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Pablo Hemanoel da Paixão Matias
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Clara Gazzinelli-Guimarães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flaviane Vieira Santos
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Chiara Cássia Oliveira Amorim
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Denise Silva Nogueira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Camila Simões Freitas
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Laboratory of Protozooses, Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Daniella Castanheira Bartholomeu
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- * E-mail:
| |
Collapse
|
25
|
Lima C, Santarém N, Nieto J, Moreno J, Carrillo E, Bartholomeu DC, Bueno LL, Fujiwara R, Amorim C, Cordeiro-da-Silva A. The Use of Specific Serological Biomarkers to Detect CaniLeish Vaccination in Dogs. Front Vet Sci 2019; 6:373. [PMID: 31709270 PMCID: PMC6821643 DOI: 10.3389/fvets.2019.00373] [Citation(s) in RCA: 4] [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: 07/09/2019] [Accepted: 10/08/2019] [Indexed: 01/06/2023] Open
Abstract
Canine leishmaniosis (CanL) prevention in the Mediterranean basin is considered essential to stop human zoonotic visceral leishmaniasis. In this context, vaccination of dogs is expected to have a significant impact in disease control. CaniLeish® (Virbac Animal Health) is one of a few CanL vaccines that are at this moment licensed in Europe. This vaccine contains purified excreted-secreted proteins of Leishmania having several antigens/immunogens with potential to influence serological response. Therefore, it is important to know if CaniLeish vaccination increased the diagnostic challenges associated with conventional serology, limiting the value of some antigens. To address this 20 dogs from a cohort of 35 healthy dogs that were vaccinated, maintained indoor for 1 month and then returned to their natural domiciles for 2 years. After this period, they were re-called to evaluate their clinical/parasitological condition and assess the evolution of seroreactivity against different antigens: soluble promastigote Leishmania antigens (SPLA), recombinant protein Leishmania infantum cytosolic peroxiredoxin, recombinant protein K39 (rK39), recombinant protein K28 and recombinant kinesin degenerated derived repeat using ELISA. Two years after vaccination all vaccinated non-infected animals were seropositive for SPLA. For the other antigens the serological profile was indistinguishable from non-infected animals. Moreover, vaccinated animals presented a characteristic relative serological profile, with higher normalized serological response to SPLA than rK39. This fact enabled to distinguish with sensitivity 92.3% and specificity 95.4%, vaccinated non-infected dogs from infected and non-infected dogs. Ultimately, relative serological profile enabled the detection of healthy vaccinated animals enabling more accurate serological surveys.
Collapse
Affiliation(s)
- Carla Lima
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Faculdade de Farmácia da Universidade do Porto, Departamento de Ciências Biológicas, Porto, Portugal
| | - Nuno Santarém
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Javier Nieto
- WHO Collaborating Centre for Leishmaniasis, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Spain
| | - Javier Moreno
- WHO Collaborating Centre for Leishmaniasis, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Spain
| | - Eugenia Carrillo
- WHO Collaborating Centre for Leishmaniasis, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Spain
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Ricardo Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Célia Amorim
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Anabela Cordeiro-da-Silva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Faculdade de Farmácia da Universidade do Porto, Departamento de Ciências Biológicas, Porto, Portugal
| |
Collapse
|
26
|
Castro JC, Bueno LL, Milagres TF, Rêgo FD, Gontijo CMF, Peconick AP, Andrade AJ, Barçante TA, Barçante JMP. Molecular detection of Leishmania spp in Lutzomyia longipalpis in the city of Lavras, Minas Gerais, Brazil. Braz J Med Biol Res 2019; 52:e8224. [PMID: 31482975 PMCID: PMC6719341 DOI: 10.1590/1414-431x20198224] [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: 03/01/2019] [Accepted: 06/18/2019] [Indexed: 11/21/2022] Open
Abstract
Leishmaniasis is a neglected disease that affects a large part of the world population. Knowing the sand fly fauna of a region is of fundamental importance for guiding health surveillance actions related to the prevention and control of leishmaniasis. A total of 86 specimens of sand flies (60 females and 26 males) were collected. Using the classification proposed by Galati (2003), the following species were identified: Lutzomyia longipalpis (Lutz & Neiva, 1912), Migonemyia migonei (França, 1920), Evandromyia cortelezzi (Brethes, 1923), Ev. sallesi (Galvão & Coutinho, 1939), Nyssomyia whitmani (Atunes & Coutinho, 1939), Psathyromyia lutziana (Costa Lima, 1932), Ev. lenti (Mangabeira, 1938), Brumptomyia sp. (França and Parrot, 1921), and Pressatia sp. (Mangabeira, 1942). Using PCR with internal transcribed spacer target to identify infected sand flies, five Lu. longipalpis females were infected with Leishmania spp. Despite the small number of specimens collected, considerable species diversity was found in the study area.
Collapse
Affiliation(s)
- J C Castro
- Programa de Pós Graduação em Parasitologia, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - L L Bueno
- Programa de Pós Graduação em Parasitologia, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - T F Milagres
- Programa de Pós Graduação em Parasitologia, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - F D Rêgo
- Grupo de Estudo em Leishmanioses, FIOCRUZ, Belo Horizonte, MG, Brasil
| | - C M F Gontijo
- Grupo de Estudo em Leishmanioses, FIOCRUZ, Belo Horizonte, MG, Brasil
| | - A P Peconick
- Programa de Pós Graduação em Ciências Veterinárias, Departamento de Medicina Veterinária, Universidade Federal de Lavras, Lavras, MG, Brasil
| | - A J Andrade
- Departamento de Patologia Básica, Universidade Federal do Paraná, Curitiba, PR, Brasil
| | - T A Barçante
- Programa de Pós Graduação em Ciências da Saúde, Departamento de Ciências da Saúde, Universidade Federal de Lavras, Lavras, MG, Brasil
| | - J M P Barçante
- Programa de Pós Graduação em Ciências da Saúde, Departamento de Ciências da Saúde, Universidade Federal de Lavras, Lavras, MG, Brasil
| |
Collapse
|
27
|
Gazzinelli-Guimarães AC, Gazzinelli-Guimarães PH, Nogueira DS, Oliveira FMS, Barbosa FS, Amorim CCO, Cardoso MS, Kraemer L, Caliari MV, Akamatsu MA, Ho PL, Jones KM, Weatherhead J, Bottazzi ME, Hotez PJ, Zhan B, Bartholomeu DC, Russo RC, Bueno LL, Fujiwara RT. IgG Induced by Vaccination With Ascaris suum Extracts Is Protective Against Infection. Front Immunol 2018; 9:2535. [PMID: 30473693 PMCID: PMC6238660 DOI: 10.3389/fimmu.2018.02535] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [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: 06/06/2018] [Accepted: 10/15/2018] [Indexed: 01/22/2023] Open
Abstract
Human ascariasis has a global and cosmopolitan distribution, and has been characterized as the most prevalent neglected tropical disease worldwide. The development of a preventive vaccine is highly desirable to complement current measures required for this parasitic infection control and to reduce chronic childhood morbidities. In the present study, we describe the mechanism of protection elicited by a preventive vaccine against ascariasis. Vaccine efficacy was evaluated after immunization with three different Ascaris suum antigen extracts formulated with monophosphoryl lipid A (MPLA) as an adjuvant: crude extract of adult worm (ExAD); crude extract of adult worm cuticle (CUT); and crude extract of infective larvae (L3) (ExL3). Immunogenicity elicited by immunization was assessed by measuring antibody responses, cytokine production, and influx of tissue inflammatory cells. Vaccine efficacy was evaluated by measuring the reductions in the numbers of larvae in the lungs of immunized BALB/c mice that were challenged with A. suum eggs. Moreover, lung physiology and functionality were tested by spirometry to determine clinical efficacy. Finally, the role of host antibody mediated protection was determined by passive transfer of serum from immunized mice. Significant reductions in the total number of migrating larvae were observed in mice immunized with ExL3 61% (p < 0.001), CUT 59% (p < 0.001), and ExAD 51% (p < 0.01) antigens in comparison with non-immunized mice. For the Ascaris antigen-specific IgG antibody levels, a significant and progressive increase was observed with each round of immunization, in association with a marked increase of IgG1 and IgG3 subclasses. Moreover, a significant increase in concentration of IL-5 and IL-10 (pre-challenge) in the blood and IL-10 in the lung tissue (post-challenge) was induced by CUT immunization. Finally, ExL3 and CUT-immunized mice showed a marked improvement in lung pathology and tissue fibrosis as well as reduced pulmonary dysfunction induced by Ascaris challenge, when compared to non-immunized mice. Moreover, the passive transfer of specific IgG antibodies from ExL3, CUT, and ExAD elicited a protective response in naïve mice, with significant reductions in parasite burdens in lungs of 65, 64, and 64%, respectively. Taken together, these studies indicated that IgG antibodies contribute to protective immunity.
Collapse
Affiliation(s)
| | | | - Denise Silva Nogueira
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Fernando Sérgio Barbosa
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Mariana Santos Cardoso
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Kraemer
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Milena Apetito Akamatsu
- BioIndustrial Division, Butantan Institute, Sao Paulo Secretary of Health, São Paulo, Brazil
| | - Paulo Lee Ho
- BioIndustrial Division, Butantan Institute, Sao Paulo Secretary of Health, São Paulo, Brazil
| | - Kathryn Marie Jones
- Texas Children's Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Jill Weatherhead
- Texas Children's Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Maria Elena Bottazzi
- Texas Children's Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Peter J Hotez
- Texas Children's Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Bin Zhan
- Texas Children's Hospital Center for Vaccine Development, Department of Pediatric Tropical Medicine, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | | | - Remo Castro Russo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
28
|
Viana AG, Coelho ALG, Gazzinelli-Guimarães PH, Phillips AE, Bartholomeu DC, Bueno LL, Fujiwara RT. Development of the PraziCalc mobile device-app to calculate praziquantel dosage in the treatment of schistosomiasis. Rev Inst Med Trop Sao Paulo 2018; 60:e42. [PMID: 30133602 PMCID: PMC6103324 DOI: 10.1590/s1678-9946201860042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/11/2018] [Indexed: 11/08/2023] Open
Affiliation(s)
- Agostinho Gonçalves Viana
- Universidade Federal de Minas Gerais, Instituto de Ciências
Biológicas, Departamento de Parasitologia, Laboratório de Imunologia e Genômica de
Parasitos, Belo Horizonte, Minas Gerais, Brazil
| | - André Luiz Gomes Coelho
- Universidade Federal de Minas Gerais, Instituto de Ciências
Biológicas, Departamento de Parasitologia, Laboratório de Imunologia e Genômica de
Parasitos, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Daniella Castanheira Bartholomeu
- Universidade Federal de Minas Gerais, Instituto de Ciências
Biológicas, Departamento de Parasitologia, Laboratório de Imunologia e Genômica de
Parasitos, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Universidade Federal de Minas Gerais, Instituto de Ciências
Biológicas, Departamento de Parasitologia, Laboratório de Imunologia e Genômica de
Parasitos, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Universidade Federal de Minas Gerais, Instituto de Ciências
Biológicas, Departamento de Parasitologia, Laboratório de Imunologia e Genômica de
Parasitos, Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
29
|
Tinoco HP, da Costa MELT, Pessanha AT, Coelho CM, de Carvalho TF, Mol JPDS, Viana AG, Bueno LL, Fujiwara RT, Santos RL. Visceral leishmaniasis in an infant gorilla (Gorilla gorilla gorilla
): Clinical signs, diagnosis, and successful treatment with single-dose liposomal amphotericin B. J Med Primatol 2018; 47:416-418. [DOI: 10.1111/jmp.12354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Herlandes Penha Tinoco
- Departamento de Jardim Zoológico; Fundação Zoo-Botânica de Belo Horizonte; Belo Horizonte Brazil
| | | | - Angela Tinoco Pessanha
- Departamento de Jardim Zoológico; Fundação Zoo-Botânica de Belo Horizonte; Belo Horizonte Brazil
| | - Carlyle Mendes Coelho
- Departamento de Jardim Zoológico; Fundação Zoo-Botânica de Belo Horizonte; Belo Horizonte Brazil
| | - Tatiane Furtado de Carvalho
- Departamento de Clínica e Cirurgia Veterinárias; Escola de Veterinária; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| | - Juliana Pinto da Silva Mol
- Departamento de Clínica e Cirurgia Veterinárias; Escola de Veterinária; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| | - Agostinho Gonçalves Viana
- Departamento de Parasitologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| | - Renato Lima Santos
- Departamento de Clínica e Cirurgia Veterinárias; Escola de Veterinária; Universidade Federal de Minas Gerais (UFMG); Belo Horizonte Brazil
| |
Collapse
|
30
|
Passos LSA, Gazzinelli-Guimarães PH, Oliveira Mendes TAD, Guimarães ACG, Silveira Lemos DD, Ricci ND, Gonçalves R, Bartholomeu DC, Fujiwara RT, Bueno LL. Regulatory monocytes in helminth infections: insights from the modulation during human hookworm infection. BMC Infect Dis 2017; 17:253. [PMID: 28390393 PMCID: PMC5385058 DOI: 10.1186/s12879-017-2366-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 08/18/2016] [Accepted: 03/29/2017] [Indexed: 12/25/2022] Open
Abstract
Background While the macrophage polarization is well characterized in helminth infections, the natural heterogeneity of monocytes with multiple cell phenotypes might influence the outcome of neglected diseases, such hookworm infection. Here, we report the profile of monocytes in human hookworm infections as a model to study the regulatory subpopulation of monocytes in helminth infections. Methods Blood samples were collected from 19 Necator americanus-infected individuals and 13 healthy individuals. Peripheral blood mononuclear cells (PBMCs) were isolated, and immunophenotyping was conducted by flow cytometry. The expressions of genes encoding human nitric oxide synthase (iNOS), interleukin 4 (IL-4), arginase-1 (Arg-1) and glyceraldehyde 3-phosphate dehydrogenase were quantified by qPCR. Plasma levels of IL-4 were determined by sandwich ELISA. Unpaired t-tests or Mann-Whitney tests were used depending on the data distribution. Results Hookworm infected individuals (HWI) showed a significant increase in the number of monocytes/mm3 (555.2 ± 191.0) compared to that of the non-infected (NI) individuals (120.4 ± 44.7) (p < 0.0001). While the frequencies of CD14+IL-10+ and CD14+IL-12+ cells were significantly reduced in the HWI compared to NI group (p = 0.0289 and p < 0.0001, respectively), the ratio between IL-10/IL-12 producing monocytes was significantly elevated in HWI (p = 0.0004), indicating the potential regulatory activity of these cells. Measurement of IL-4 levels and gene expression of IL-4 and Arg-1 (highly expressed in alternatively activated macrophages) revealed no significant differences between the NI and HWI groups. Interestingly, individuals from the HWI group had higher expression of the iNOS gene (associated with a regulatory profile) (20.27 ± 2.97) compared to the NI group (11.28 ± 1.18, p = 0.0409). Finally, individuals from the HWI group had a significantly higher frequency of CD206+CD23+IL-10+ (7.57 ± 1.96) cells compared to individuals from the NI group (0.35 ± 0.09) (p < 0.001), suggesting that activated monocytes are a potential source of regulatory cytokines during hookworm infection. Conclusions Natural hookworm infection induces a high frequency of circulating monocytes that present a regulatory profile and promote the downmodulation of the proinflammatory response, which may contribute to prolonged survival of the parasite in the host.
Collapse
Affiliation(s)
- Lívia Silva Araújo Passos
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Pedro Henrique Gazzinelli-Guimarães
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Ana Clara Gazzinelli Guimarães
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Denise da Silveira Lemos
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Natasha Delaqua Ricci
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Gonçalves
- Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Daniella Castanheira Bartholomeu
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Department of Parasitology, Laboratory of Immunology and Genomics of Parasites, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
31
|
Oliveira ALGD, Chaves AT, Menezes CAS, Guimarães NS, Bueno LL, Fujiwara RT, Rocha MODC. Vitamin D receptor expression and hepcidin levels in the protection or severity of leprosy: a systematic review. Microbes Infect 2017; 19:311-322. [PMID: 28323068 DOI: 10.1016/j.micinf.2017.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/06/2017] [Accepted: 03/03/2017] [Indexed: 12/20/2022]
Abstract
Leprosy is a chronic infectious disease whose disequilibrium in the host's genetic, immunological and clinical mechanisms leads to distinct manifestations defining the type of immunological response. This review focuses its attention on the influence of the Vitamin D Receptor and hepcidin expressions that can suggest the protection or severity of leprosy.
Collapse
Affiliation(s)
- Ana Laura Grossi de Oliveira
- Post-graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.
| | - Ana Thereza Chaves
- Post-graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | | | - Nathalia Sernizon Guimarães
- Post-graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | | | - Ricardo Toshio Fujiwara
- Post-graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Manoel Otávio da Costa Rocha
- Post-graduate Program in Health Sciences: Infectious Diseases and Tropical Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
32
|
Hojo-Souza NS, Pereira DB, de Souza FSH, de Oliveira Mendes TA, Cardoso MS, Tada MS, Zanini GM, Bartholomeu DC, Fujiwara RT, Bueno LL. On the cytokine/chemokine network during Plasmodium vivax malaria: new insights to understand the disease. Malar J 2017; 16:42. [PMID: 28118834 PMCID: PMC5260126 DOI: 10.1186/s12936-017-1683-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/05/2017] [Indexed: 11/10/2022] Open
Abstract
Background The clinical outcome of malaria depends on the delicate balance between pro-inflammatory and immunomodulatory cytokine responses triggered during infection. Despite the numerous reports on characterization of plasma levels of cytokines/chemokines, there is no consensus on the profile of these mediators during blood stage malaria. The identification of acute phase biomarkers might contribute to a better understanding of the disease, allowing the use of more effective therapeutic approaches to prevent the progression towards severe disease. In the present study, the plasma levels of cytokines and chemokines and their association with parasitaemia and number of previous malaria episodes were evaluated in Plasmodium vivax-infected patients during acute and convalescence phase, as well as in healthy donors. Methods Samples of plasma were obtained from peripheral blood samples from four different groups: P. vivax-infected, P. vivax-treated, endemic control and malaria-naïve control. The cytokine (IL-6, IL-10, IL-17, IL-27, TGF-β, IFN-γ and TNF) and chemokine (MCP-1/CCL2, IP-10/CXCL10 and RANTES/CCL5) plasma levels were measured by CBA or ELISA. The network analysis was performed using Spearman correlation coefficient. Results Plasmodium vivax infection induced a pro-inflammatory response driven by IL-6 and IL-17 associated with an immunomodulatory profile mediated by IL-10 and TGF-β. In addition, a reduction was observed of IFN-γ plasma levels in P. vivax group. A lower level of IL-27 was observed in endemic control group in comparison to malaria-naïve control group. No significant results were found for IL-12p40 and TNF. It was also observed that P. vivax infection promoted higher levels of MCP-1/CCL2 and IP-10/CXCL10 and lower levels of RANTES/CCL5. The plasma level of IL-10 was elevated in patients with high parasitaemia and with more than five previous malaria episodes. Furthermore, association profile between cytokine and chemokine levels were observed by correlation network analysis indicating signature patterns associated with different parasitaemia levels. Conclusions The P. vivax infection triggers a balanced immune response mediated by IL-6 and MCP-1/CCL2, which is modulated by IL-10. In addition, the results indicated that IL-10 plasma levels are influenced by parasitaemia and number of previous malaria episodes.
Collapse
Affiliation(s)
- Natália Satchiko Hojo-Souza
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Fernanda Sumika Hojo de Souza
- Departamento de Ciência da Computação, Universidade Federal de São João del-Rei, São João del-Rei, Minas Gerais, Brazil
| | | | - Mariana Santos Cardoso
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Graziela Maria Zanini
- Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
33
|
Nogueira DS, Gazzinelli-Guimarães PH, Barbosa FS, Resende NM, Silva CC, de Oliveira LM, Amorim CCO, Oliveira FMS, Mattos MS, Kraemer LR, Caliari MV, Gaze S, Bueno LL, Russo RC, Fujiwara RT. Multiple Exposures to Ascaris suum Induce Tissue Injury and Mixed Th2/Th17 Immune Response in Mice. PLoS Negl Trop Dis 2016; 10:e0004382. [PMID: 26814713 PMCID: PMC4729520 DOI: 10.1371/journal.pntd.0004382] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [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: 05/18/2015] [Accepted: 12/19/2015] [Indexed: 02/07/2023] Open
Abstract
Ascaris spp. infection affects 800 million people worldwide, and half of the world population is currently at risk of infection. Recurrent reinfection in humans is mostly due to the simplicity of the parasite life cycle, but the impact of multiple exposures to the biology of the infection and the consequences to the host's homeostasis are poorly understood. In this context, single and multiple exposures in mice were performed in order to characterize the parasitological, histopathological, tissue functional and immunological aspects of experimental larval ascariasis. The most important findings revealed that reinfected mice presented a significant reduction of parasite burden in the lung and an increase in the cellularity in the bronchoalveolar lavage (BAL) associated with a robust granulocytic pulmonary inflammation, leading to a severe impairment of respiratory function. Moreover, the multiple exposures to Ascaris elicited an increased number of circulating inflammatory cells as well as production of higher levels of systemic cytokines, mainly IL-4, IL-5, IL-6, IL-10, IL-17A and TNF-α when compared to single-infected animals. Taken together, our results suggest the intense pulmonary inflammation associated with a polarized systemic Th2/Th17 immune response are crucial to control larval migration after multiple exposures to Ascaris.
Collapse
Affiliation(s)
- Denise Silva Nogueira
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Pedro Henrique Gazzinelli-Guimarães
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernando Sérgio Barbosa
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Nathália Maria Resende
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Institute of Biological and Health Sciences, Universidade Federal do Mato Grosso, Cuiabá, Brazil
| | - Caroline Cavalcanti Silva
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana Maria de Oliveira
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Chiara Cássia Oliveira Amorim
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício Marcus Silva Oliveira
- Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Matheus Silvério Mattos
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Rocha Kraemer
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marcelo Vidigal Caliari
- Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Soraya Gaze
- Laboratory of Cellular and Molecular Immunology, René Rachou Institute, Oswaldo Cruz Foundation–FIOCRUZ, Belo Horizonte, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Parasite Genomics, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Institute of Biological and Health Sciences, Universidade Federal do Mato Grosso, Cuiabá, Brazil
| |
Collapse
|
34
|
Toledo-Machado CM, Bueno LL, Menezes-Souza D, Machado-de-Avila RA, Nguyen C, Granier C, Bartholomeu DC, Chávez-Olórtegui C, Fujiwara RT. Use of Phage Display technology in development of canine visceral leishmaniasis vaccine using synthetic peptide trapped in sphingomyelin/cholesterol liposomes. Parasit Vectors 2015; 8:133. [PMID: 25889286 PMCID: PMC4352561 DOI: 10.1186/s13071-015-0747-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 09/25/2014] [Accepted: 02/17/2015] [Indexed: 12/29/2022] Open
Abstract
Background Leishmania parasites can cause visceral or cutaneous disease and are found in subtropical and tropical regions of the Old and New World. The pathology of the infection is determined by both host immune factors and species/strain differences of the parasite. Dogs represent the major reservoir of Leishmania infantum (syn. L. chagasi) and vaccines are considered the most cost-effective control tools for canine disease. Methods Selection of immunodominant peptides was performed by Phage Display to identify sequences recognized by L. infantum naturally infected animals. Sera from Leishmania infected animals were used in the biopanning to selection of specific peptides. Serum samples from T. cruzi infected and healthy animals were used as control. After selection, synthetic peptides were produced in membrane (spot-synthesis) in soluble form and blotting and ELISA were performed for validation of serum reactivity. Selected peptide was formulated with aluminum hydroxide and liposomes and immunization was performed in BALB/c mice. Protection was determined by qPCR after challenge infection with virulent L. infantum. Results We reported the selection of Peptide 5 through Phage Display technique and demonstrate its ability to promote a state of immunity against L. infantum infection in murine model after immunization using liposomes as vaccine carrier. Our results demonstrate that immunization with Peptide 5 when formulated with aluminum hydroxide and liposomes is immunogenic and elicited significant protection associated with the induction of mixed Th1/Th2 immune response against L. infantum infection. Conclusion Peptide 5 is a promising vaccine candidate and the findings obtained in the present study encourage canine trials to confirm the effectiveness of a vaccine against CVL.
Collapse
Affiliation(s)
- Christina Monerat Toledo-Machado
- Departamento de Parasitologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Daniel Menezes-Souza
- Departamento de Parasitologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Ricardo Andrez Machado-de-Avila
- Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense - CEP: 88.806-000, Criciúma, Santa Catarina, Brazil.
| | - Christophe Nguyen
- SysDiag CNRS-BioRad UMR 3145, Cap Delta/Parc Euromédecine, 1682 rue de la Valsière, CS 61003, 34184, Montpellier Cedex 4, France.
| | - Claude Granier
- SysDiag CNRS-BioRad UMR 3145, Cap Delta/Parc Euromédecine, 1682 rue de la Valsière, CS 61003, 34184, Montpellier Cedex 4, France.
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Carlos Chávez-Olórtegui
- Departamento Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, ICB, Universidade Federal de Minas Gerais, CP: 486 - CEP: 31.270-901, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
35
|
Hojo-Souza NS, Pereira DB, Passos LSA, Gazzinelli-Guimarães PH, Cardoso MS, Tada MS, Zanini GM, Bartholomeu DC, Fujiwara RT, Bueno LL. Phenotypic profiling of CD8(+) T cells during Plasmodium vivax blood-stage infection. BMC Infect Dis 2015; 15:35. [PMID: 25636730 PMCID: PMC4329216 DOI: 10.1186/s12879-015-0762-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/15/2015] [Indexed: 12/27/2022] Open
Abstract
Background For a long time, the role of CD8+ T cells in blood-stage malaria was not considered important because erythrocytes do not express major histocompatibility complex (MHC) class I proteins. While recent evidences suggest that CD8+ T cells may play an important role during the erythrocytic phase of infection by eliminating parasites, CD8+ T cells might also contribute to modulate the host response through production of regulatory cytokines. Thus, the role of CD8+ T cells during blood-stage malaria is unclear. Here, we report the phenotypic profiling of CD8+ T cells subsets from patients with uncomplicated symptomatic P. vivax malaria. Methods Blood samples were collected from 20 Plasmodium vivax-infected individuals and 12 healthy individuals. Immunophenotyping was conducted by flow cytometry. Plasma levels of IFN-γ, TNF-α and IL-10 were determined by ELISA/CBA. Unpaired t-test or Mann–Whitney test was used depending on the data distribution. Results P. vivax-infected subjects had lower percentages and absolute numbers of CD8+CD45RA+ and CD8+CD45RO+ T cells when compared to uninfected individuals (p ≤ 0.0002). A significantly lower absolute number of circulating CD8+CD45+CCR7+ cells (p = 0.002) was observed in P. vivax-infected individuals indicating that infection reduces the number of central memory T cells. Cytokine expression was significantly reduced in the naïve T cells from infected individuals compared with negative controls, as shown by lower numbers of IFN-γ+ (p = 0.001), TNF-α+ (p < 0.0001) and IL-10+ (p < 0.0001) CD8+ T cells. Despite the reduction in the number of CD8+ memory T cells producing IFN-γ (p < 0.0001), P. vivax-infected individuals demonstrated a significant increase in memory CD8+TNF-α+ (p = 0.016) and CD8+IL-10+ (p = 0.004) cells. Positive correlations were observed between absolute numbers of CD8+IL-10+ and numbers of CD8+IFN-γ+ (p < 0.001) and CD8+TNF-α+ T cells (p ≤ 0.0001). Finally, an increase in the plasma levels of TNF-α (p = 0.017) and IL-10 (p = 0.006) and a decrease in the IFN-γ plasma level (p <0.0001) were observed in the P. vivax-infected individuals. Conclusions P. vivax infection reduces the numbers of different subsets of CD8+ T cells, particularly the memory cells, during blood-stage of infection and enhances the number of CD8+ memory T cells expressing IL-10, which positively correlates with the number of cells expressing TNF-α and IFN-γ. Electronic supplementary material The online version of this article (doi:10.1186/s12879-015-0762-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Natália Satchiko Hojo-Souza
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | | | - Lívia Silva Araújo Passos
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Pedro Henrique Gazzinelli-Guimarães
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Mariana Santos Cardoso
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | | | - Graziela Maria Zanini
- Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
36
|
Fiuza JA, Gannavaram S, Santiago HDC, Selvapandiyan A, Souza DM, Passos LSA, de Mendonça LZ, Lemos-Giunchetti DDS, Ricci ND, Bartholomeu DC, Giunchetti RC, Bueno LL, Correa-Oliveira R, Nakhasi HL, Fujiwara RT. Vaccination using live attenuated Leishmania donovani centrin deleted parasites induces protection in dogs against Leishmania infantum. Vaccine 2014; 33:280-8. [PMID: 25475955 DOI: 10.1016/j.vaccine.2014.11.039] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [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: 09/25/2014] [Revised: 11/17/2014] [Accepted: 11/20/2014] [Indexed: 01/25/2023]
Abstract
Live attenuated Leishmania donovani parasites such as LdCen(-/-) have been shown elicit protective immunity against leishmanial infection in mice and hamster models. Previously, we have reported on the induction of strong immunogenicity in dogs upon vaccination with LdCen(-/-) including an increase in immunoglobulin isotypes, higher lymphoproliferative response, higher frequencies of activated CD4(+) and CD8(+) T cells, IFN-γ production by CD8(+) T cells, increased secretion of TNF-α and IL-12/IL-23p40 and, finally, decreased secretion of IL-4. To further explore the potential of LdCen(-/-) parasites as vaccine candidates, we performed a 24-month follow up of LdCen(-/-) immunized dogs after challenge with virulent Leishmania infantum, aiming determination of parasite burden by qPCR, antibody production (ELISA) and cellular responses (T cell activation and cytokine production) by flow cytometry and sandwich ELISA. Our data demonstrated that vaccination with a single dose of LdCen(-/-) (without any adjuvant) resulted in the reduction of up to 87.3% of parasite burden after 18 months of virulent challenge. These results are comparable to those obtained with commercially available vaccine in Brazil (Leishmune(®)). The protection was associated with antibody production and CD4(+) and CD8(+) proliferative responses, as well as T cell activation and significantly higher production of IFN-γ, IL-12/IL-23p40 and TNF-α, which was comparable to responses induced by immunization with Leishmune(®), with significant differences when compared to control animals (Placebo). Moreover, only animals immunized with LdCen(-/-) expressed lower levels of IL-4 when compared to animals vaccinated either with Leishmune(®) or PBS. Our results support further studies aiming to demonstrate the potential of genetically modified live attenuated L. donovani vaccine to control L. infantum transmission in endemic areas for CVL.
Collapse
Affiliation(s)
- Jacqueline Araújo Fiuza
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil; Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Division of Emerging and Transfusion Transmitted Diseases, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA
| | - Sreenivas Gannavaram
- Division of Emerging and Transfusion Transmitted Diseases, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA
| | | | - Angamuthu Selvapandiyan
- Institute of Molecular Medicine, 254 Okhla Industrial Estate, Phase III., New Delhi 110020, India
| | | | | | | | | | | | | | | | | | - Rodrigo Correa-Oliveira
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | - Hira L Nakhasi
- Division of Emerging and Transfusion Transmitted Diseases, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA
| | | |
Collapse
|
37
|
Fiuza JA, Santiago HDC, Selvapandiyan A, Gannavaram S, Ricci ND, Bueno LL, Bartholomeu DC, Correa-Oliveira R, Nakhasi HL, Fujiwara RT. Induction of immunogenicity by live attenuated Leishmania donovani centrin deleted parasites in dogs. Vaccine 2013; 31:1785-92. [PMID: 23398933 DOI: 10.1016/j.vaccine.2013.01.048] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Revised: 01/17/2013] [Accepted: 01/25/2013] [Indexed: 01/28/2023]
Abstract
Zoonotic visceral leishmaniasis, caused by the intracellular protozoan parasite Leishmania infantum, is a neglected tropical disease that is often fatal when untreated. Dogs are considered the main reservoir of L. infantum in zoonotic VL as the presence of infected dogs may increase the risk for human infection. Canine visceral leishmaniasis (CVL) is a major veterinary and public health problem in Southern Europe, Middle East and South America. Control of animal reservoirs relies on elimination of seropositive dogs in endemic areas. However, treatment of infected dogs is not considered a favorable approach as this can lead to emergence of drug resistance since the same drugs are used to treat human infections. Therefore, vaccination against CVL remains the best alternative in control of the animal reservoirs. In this study, we present data on the immunogenicity profile of a live attenuated parasite LdCen(-/-) in a canine infection model and compared it to that of Leishmune(®), a commercially available recombinant vaccine. The immunogenicity of the LdCen(-/-) parasites was evaluated by antibody secretion, production of intracytoplasmic and secreted cytokines, activation and proliferation of T cells. Vaccination with LdCen(-/-) resulted in high immunogenicity as revealed by the higher IgGTotal, IgG1, and IgG2 production and higher lymphoproliferative response. Further, LdCen(-/-) vaccinated dogs showed higher frequencies of activated CD4+ and CD8+ T cells, IFN-γ production by CD8+ T cells, increased secretion of TNF-α and IL-12/IL-23p40 and decreased secretion of IL-4. These results contribute to the understanding of immunogenicity elicited by live attenuated L. donovani parasites and, consequently, to the development of effective vaccines against visceral leishmaniasis.
Collapse
Affiliation(s)
- Jacqueline Araújo Fiuza
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Gazzinelli-Guimarães PH, Souza-Fagundes EM, Cancado GGL, Martins VG, Dhom-Lemos LC, Ricci ND, Fiuza JA, Bueno LL, Miranda RRC, Guatimosim S, Gazzinelli A, Correa-Oliveira R, Bartholomeu DC, Fujiwara RT. Cell apoptosis induced by hookworm antigens: a strategy of immunomodulation. Front Biosci (Elite Ed) 2013; 5:662-75. [PMID: 23277021 DOI: 10.2741/e647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
While several mechanisms of immunoregulation have been demonstrated for hookworm and other neglected tropical infections, the influence of apoptosis in the immunomodulation of hookworm infection is still poorly understood. In this study, we demonstrate the cytotoxic and pro-apoptotic activity of hookworm antigens in Jurkat T cells, mesenteric lymph nodes lymphocytes of healthy and hookworm-infected hamsters and during human natural infection. Our results showed that in vitrostimulation of Jurkat T cells with antigens induces a significant decrease of cell viability leading to a relevant increase of apoptotic cells. Similar results were also observed in experimental conditions, for both healthy and hookworm-infected hamsters` lymphocytes. Flow cytometric analysis demonstrated that hookworm-infected patients presented a significant increase of CD4+, CD8+, and CD19+lymphocytes in early and/or late apoptosis when compared with non-infected individuals. The downmodulation of TNF receptors, as well as the up-regulation of the pro-apoptotic genes belonging to the BCL-2 and P53 families, suggest that hookworm antigens induced apoptosis by an intrinsic mitochondrial pathway, acting as a sophisticated strategy to safeguard parasite long-term survival in their hosts.
Collapse
|
39
|
Moreira MD, Brehmer A, de Oliveira EC, Neto SG, Luquetti AO, Bueno LL, Fujiwara RT, de Freitas MAR, da Silveira ABM. Regenerative process evaluation of neuronal subclasses in chagasic patients with megacolon. Hum Immunol 2012; 74:181-8. [PMID: 23220499 DOI: 10.1016/j.humimm.2012.11.012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 11/13/2012] [Accepted: 11/27/2012] [Indexed: 10/27/2022]
Abstract
Chagas' disease is one of the most serious parasitic diseases of Latin America, with a social and economic impact far outweighing the combined effects of other parasitic diseases such as malaria, leishmaniasis and schistosomiasis. In the chronic phase of this disease, the destruction of enteric nervous system (ENS) components leads to megacolon development. Previous data presented that the regeneration tax in the ENS neurons is augmented in chagasic patients. Although, there are several neuronal types with different functions in the intestine a detailed study about the regeneration of every neuronal type was never performed before. Therefore, the aim of this study was to evaluate the regeneration tax of every neuronal cell type in the ENS from chagasic patients with megacolon and non-infected individuals. A neuronal regeneration marker (GAP-43) was used in combination with a pan-neuronal marker (Peripherin) and several neuropeptides markers (cChat, Substance P, NPY, VIP and NOS), and it was considered as positive just with the combination of these markers. Our results demonstrated that the regeneration levels of cChat, Substance P, and NPY were similar in chagasic patients and non-infected individuals. However, levels of VIP and NOS neuropeptides were increased in chagasic patients when compared with non-infected individuals. We believe that the augment in the regeneration occur due to an increased destruction of selective neuronal types. These results corroborates with previous studies that pointed out to selective destruction of VIP and NOS neurons in chagasic patients.
Collapse
Affiliation(s)
- Milena Dionízio Moreira
- Neurosciences Laboratory, Human Anatomy Department, ICBIM, Universidade Federal de Uberlândia, Minas Gerais 38.400-902, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Bueno LL, Morais CG, Lacerda MV, Fujiwara RT, Braga ÉM. Interleukin-17 producing T helper cells are increased during natural Plasmodium vivax infection. Acta Trop 2012; 123:53-7. [PMID: 22476130 DOI: 10.1016/j.actatropica.2012.02.071] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 02/21/2012] [Accepted: 02/28/2012] [Indexed: 01/08/2023]
Abstract
Recent evidences have demonstrated the importance of Th17 cells in host defense against infectious diseases. However, little is known about their role in parasitic infections. Here, we showed that uncomplicated acute vivax malaria induce a significant expansion of IL-17-producing CD4(+) T cells associated to a pro-inflammatory cytokine profile. Furthermore, we demonstrated a correlation between numbers of IL-17(+)CD4(+) T cells and circulating CD4(+) T-cells producing IFN-γ, IL-10 and TGF-β. Finally, correlations between number of these cells and morbidity or parasitemia were not detected. Further studies are underway to investigate whether IL-17-producing CD4(+) T cells are critically involved in the immunity against Plasmodium vivax infection.
Collapse
|
41
|
Mourão LC, Morais CG, Bueno LL, Jimenez MC, Soares IS, Fontes CJ, Guimarães Lacerda MV, Xavier MS, Barnwell JW, Galinski MR, Braga EM. Naturally acquired antibodies to Plasmodium vivax blood-stage vaccine candidates (PvMSP-1₁₉ and PvMSP-3α₃₅₉₋₇₉₈ and their relationship with hematological features in malaria patients from the Brazilian Amazon. Microbes Infect 2012; 14:730-9. [PMID: 22445906 DOI: 10.1016/j.micinf.2012.02.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 02/28/2012] [Accepted: 02/29/2012] [Indexed: 01/22/2023]
Abstract
An important step when designing a vaccine is identifying the antigens that function as targets of naturally acquired antibodies. We investigated specific antibody responses against two Plasmodium vivax vaccine candidates, PvMSP-1₁₉ and PvMSP-3α₃₅₉₋₇₉₈. Moreover, we assessed the relationship between these antibodies and morbidity parameters. PvMSP-1₁₉ was the most immunogenic antigen and the frequency of responders to this protein tended to increase in P. vivax patients with higher parasitemia. For both antigens, IgG antibody responses tended to be lower in patients who had experienced their first bout of malaria. Furthermore, anemic patients presented higher IgG antibody responses to PvMSP-3α₃₅₉₋₇₉₈. Since the humoral response involves a number of antibodies acting simultaneously on different targets, we performed a Principal Component Analysis (PCA). Anemic patients had, on average, higher first principal component scores (IgG1/IgG2/IgG3/IgG4 anti-MSP3α), which were negatively correlated with hemoglobin levels. Since antibodies against PfMSP-3 have been strongly associated with clinical protection, we cannot exclude the possibility of a dual role of PvMSP-3 specific antibodies in both immunity and pathogenesis of vivax malaria. Our results confirm the high immunogenicity of the conserved C terminus of PvMSP-1 and points to the considerable immunogenicity of polymorphic PvMSP-3α₃₅₉₋₇₉₈ during natural infection.
Collapse
Affiliation(s)
- Luiza Carvalho Mourão
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Ricci ND, Fiúza JA, Bueno LL, Cançado GGL, Gazzinelli-Guimarães PH, Martins VG, Matoso LF, de Miranda RRC, Geiger SM, Correa-Oliveira R, Gazzinelli A, Bartholomeu DC, Fujiwara RT. Induction of CD4(+)CD25(+)FOXP3(+) regulatory T cells during human hookworm infection modulates antigen-mediated lymphocyte proliferation. PLoS Negl Trop Dis 2011; 5:e1383. [PMID: 22087344 PMCID: PMC3210756 DOI: 10.1371/journal.pntd.0001383] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 09/18/2011] [Indexed: 02/07/2023] Open
Abstract
Hookworm infection is considered one of the most important poverty-promoting neglected tropical diseases, infecting 576 to 740 million people worldwide, especially in the tropics and subtropics. These blood-feeding nematodes have a remarkable ability to downmodulate the host immune response, protecting themselves from elimination and minimizing severe host pathology. While several mechanisms may be involved in the immunomodulation by parasitic infection, experimental evidences have pointed toward the possible involvement of regulatory T cells (Tregs) in downregulating effector T-cell responses upon chronic infection. However, the role of Tregs cells in human hookworm infection is still poorly understood and has not been addressed yet. In the current study we observed an augmentation of circulating CD4(+)CD25(+)FOXP3(+) regulatory T cells in hookworm-infected individuals compared with healthy non-infected donors. We have also demonstrated that infected individuals present higher levels of circulating Treg cells expressing CTLA-4, GITR, IL-10, TGF-β and IL-17. Moreover, we showed that hookworm crude antigen stimulation reduces the number of CD4(+)CD25(+)FOXP3(+) T regulatory cells co-expressing IL-17 in infected individuals. Finally, PBMCs from infected individuals pulsed with excreted/secreted products or hookworm crude antigens presented an impaired cellular proliferation, which was partially augmented by the depletion of Treg cells. Our results suggest that Treg cells may play an important role in hookworm-induced immunosuppression, contributing to the longevity of hookworm survival in infected people.
Collapse
Affiliation(s)
- Natasha Delaqua Ricci
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
| | - Jacqueline Araújo Fiúza
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Guilherme Grossi Lopes Cançado
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Clinical Hospital, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro Henrique Gazzinelli-Guimarães
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
| | - Virgillio Gandra Martins
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
| | - Leonardo Ferreira Matoso
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | | | - Stefan Michael Geiger
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo Correa-Oliveira
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Andréa Gazzinelli
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
- School of Nursing, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Ricardo Toshio Fujiwara
- Department of Parasitology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT-DT), Brazil
- Laboratory of Cellular and Molecular Immunology, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| |
Collapse
|
43
|
Bueno LL, Morais CG, Araújo FF, Gomes JAS, Corrêa-Oliveira R, Soares IS, Lacerda MV, Fujiwara RT, Braga ÉM. Plasmodium vivax: induction of CD4+CD25+FoxP3+ regulatory T cells during infection are directly associated with level of circulating parasites. PLoS One 2010; 5:e9623. [PMID: 20224778 PMCID: PMC2835751 DOI: 10.1371/journal.pone.0009623] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [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: 12/22/2009] [Accepted: 02/19/2010] [Indexed: 11/29/2022] Open
Abstract
Circulation CD4+CD25+FoxP3+ regulatory T cells (Tregs) have been associated with the delicate balancing between control of overwhelming acute malaria infection and prevention of immune pathology due to disproportionate inflammatory responses to erythrocytic stage of the parasite. While the role of Tregs has been well-documented in murine models and P. falciparum infection, the phenotype and function of Tregs in P. vivax infection is still poorly characterized. In the current study, we demonstrated that patients with acute P. vivax infection presented a significant augmentation of circulating Tregs producing anti-inflammatory (IL-10 and TGF-β) as well as pro-inflammatory (IFN-γ, IL-17) cytokines, which was further positively correlated with parasite burden. Surface expression of GITR molecule and intracellular expression of CTLA-4 were significantly upregulated in Tregs from infected donors, presenting also a positive association between either absolute numbers of CD4+CD25+FoxP3+GITR+ or CD4+CD25+FoxP3+CTLA-4+ and parasite load. Finally, we demonstrate a suppressive effect of Treg cells in specific T cell proliferative responses of P. vivax infected subjects after antigen stimulation with Pv-AMA-1. Our findings indicate that malaria vivax infection lead to an increased number of activated Treg cells that are highly associated with parasite load, which probably exert an important contribution to the modulation of immune responses during P. vivax infection.
Collapse
Affiliation(s)
- Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cristiane Guimarães Morais
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda Fortes Araújo
- Laboratório de Imunologia Celular e Molecular, Instituto René Rachou, FIOCRUZ, Belo Horizonte, Brazil
| | - Juliana Assis Silva Gomes
- Laboratório de Imunologia Celular e Molecular, Instituto René Rachou, FIOCRUZ, Belo Horizonte, Brazil
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Corrêa-Oliveira
- Laboratório de Imunologia Celular e Molecular, Instituto René Rachou, FIOCRUZ, Belo Horizonte, Brazil
| | - Irene Silva Soares
- Departamento de Análises Clínicas e Toxicológicas, Universidade de São Paulo, São Paulo, Brazil
| | | | - Ricardo Toshio Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Laboratório de Imunologia Celular e Molecular, Instituto René Rachou, FIOCRUZ, Belo Horizonte, Brazil
| | - Érika Martins Braga
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- * E-mail:
| |
Collapse
|
44
|
Bueno LL, Morais CG, da Silva Soares I, Bouillet LEM, Bruna-Romero O, Fontes CJ, Fujiwara RT, Braga ÉM. Plasmodium vivax recombinant vaccine candidate AMA-1 plays an important role in adaptive immune response eliciting differentiation of dendritic cells. Vaccine 2009; 27:5581-8. [DOI: 10.1016/j.vaccine.2009.07.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 07/06/2009] [Accepted: 07/14/2009] [Indexed: 11/16/2022]
|
45
|
Giunchetti RC, Reis AB, da Silveira-Lemos D, Martins-Filho OA, Corrêa-Oliveira R, Bethony J, Vale AM, da Silva Quetz J, Bueno LL, França-Silva JC, Nascimento E, Mayrink W, Fujiwara RT. Antigenicity of a whole parasite vaccine as promising candidate against canine leishmaniasis. Res Vet Sci 2008; 85:106-12. [DOI: 10.1016/j.rvsc.2007.09.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 09/03/2007] [Accepted: 09/06/2007] [Indexed: 11/26/2022]
|
46
|
Bueno LL, Fujiwara RT, Soares IS, Braga EM. Direct effect of Plasmodium vivax recombinant vaccine candidates AMA-1 and MSP-119 on the innate immune response. Vaccine 2008; 26:1204-13. [PMID: 18242795 DOI: 10.1016/j.vaccine.2007.12.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2007] [Revised: 12/15/2007] [Accepted: 12/19/2007] [Indexed: 10/22/2022]
Abstract
The recombinant apical membrane antigen 1 (AMA-1) and 19-kDa fragment of merozoite surface protein (MSP-1(19)) are the lead candidates for inclusion in a vaccine against blood stages of malaria due to encouraging protective studies in humans and animals. Despite the importance of an efficacious malaria vaccine, vaccine-related research has focused on identifying antigens that result in protective immunity rather than determining the nature of anti-malarial immune effector mechanisms. Moreover, emphasis has been placed on adaptive rather than innate immune responses. In this study, we investigated the effect of Plasmodium vivax vaccine candidates Pv-AMA-1 and Pv-MSP-1(19) on the immune response of malaria-naïve donors. Maturation of dendritic cells is altered by Pv-AMA-1 but not Pv-MSP-1(19), as observed by differential expression of cell surface markers. In addition, Pv-AMA-1 induced an increased production of MIP-1alpha/CCL3 and decreased production of TARC/CCL17 levels in both dendritic cells (DCs) and peripheral blood mononuclear cells (PBMCs). Finally, a significant pro-inflammatory response was elicited by Pv-AMA-1-stimulated PBMCs. These results suggest that the recombinant vaccine candidate Pv-AMA-1 may play a direct role on innate immune response and might be involved in parasite destruction.
Collapse
Affiliation(s)
- Lilian Lacerda Bueno
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte (MG), Brazil
| | | | | | | |
Collapse
|
47
|
Fujiwara RT, Vale AM, França da Silva JC, da Costa RT, Quetz JDS, Martins Filho OA, Reis AB, Corrêa Oliveira R, Machado-Coelho GL, Bueno LL, Bethony JM, Frank G, Nascimento E, Genaro O, Mayrink W, Reed S, Campos-Neto A. Immunogenicity in dogs of three recombinant antigens (TSA, LeIF and LmSTI1) potential vaccine candidates for canine visceral leishmaniasis. Vet Res 2005; 36:827-38. [PMID: 16120256 DOI: 10.1051/vetres:2005033] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Control of canine visceral leishmaniasis (VL) remains a difficult and serious problem mostly because there is no reliable and effective vaccine available to prevent this disease. A mixture of three recombinant leishmanial antigens (TSA, LeIF and LmSTI1) encoded by three genes highly conserved in the Leishmania genus have been shown to induce excellent protection against infection in both murine and simian models of cutaneous leishmaniasis. A human clinical trial with these antigens is currently underway. Because of the high degree of conservation, these antigens might be useful vaccine candidates for VL as well. In the present study, using the dog model of the visceral disease, we evaluated the immunogenicity of these three antigens formulated with two different adjuvants, MPL-SE and AdjuPrime. The results were compared with a whole parasite vaccine formulated with BCG as the adjuvant. In order to investigate if sensitization with the recombinant antigens would result in recognition of the corresponding native parasite antigens upon infection, the animals were exposed for four weeks after the termination of the immunization protocol with the recombinant antigens to a low number of L. chagasi promastigotes, an etiological agent of VL. Immune response was evaluated by quantitative ELISA in the animal sera before and after exposure to the viable parasites. Both antigen specific IgG1 and IgG2 antibody levels were measured. Immunization of dogs with the recombinant antigens formulated in either MPL-SE or AdjuPrime resulted in high antibody levels particularly to LmSTI1. In addition, this immunization although to low levels, resulted in the development of antibody response to the whole parasite lysate. Importantly, experimental exposure with low numbers of culture forms of L. chagasi promastigotes caused a clear boost in the immune response to both the recombinant antigens and the corresponding native molecules. The boost response was predominantly of the IgG2 isotype in animals primed with the recombinant antigens plus MPL-SE. In contrast, animals primed with the recombinant antigens formulated in AdjuPrime as well as animals vaccinated with crude antigen preparation responded with mixed IgG1/IgG2 isotypes. These results point to the possible use of this antigen cocktail formulated with the adjuvant MPL-SE in efficacy field trials against canine VL.
Collapse
Affiliation(s)
- Ricardo Toshio Fujiwara
- Laboratório de Leishmanioses e Vacinas, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), CEP 31270-901, Belo Horizonte, MG, Brazil.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Coutinho MTZ, Bueno LL, Sterzik A, Fujiwara RT, Botelho JR, De Maria M, Genaro O, Linardi PM. Participation of Rhipicephalus sanguineus (Acari: Ixodidae) in the epidemiology of canine visceral leishmaniasis. Vet Parasitol 2005; 128:149-55. [PMID: 15725545 DOI: 10.1016/j.vetpar.2004.11.011] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2004] [Indexed: 11/19/2022]
Abstract
The vectorial competence of the tick Rhipicephalus sanguineus is discussed in relation to the epidemiology of canine visceral leishmaniasis, taking into account its strict association with dogs and the low indices of natural infection presented by its known vector, the phlebotomine sand fly Lutzomyia longipalpis. In order to evaluate natural infection by Leishmania chagasi and the infectivity of these parasites in the tick, 39 specimens (6 females, 11 males and 22 nymphs) of R. sanguineus were removed from 21 dogs showing diverse symptoms of zoonotic visceral leishmaniasis (ZVL). Six ticks (15.4%) gave positive results for the genus Leishmania using the PCR technique. To determine the infectivity of the parasites, 36 hamsters were inoculated orally and peritoneally with macerates of ticks removed from nine dogs symptomatic for visceral leishmaniasis. After 6 months the hamsters were sacrificed and necropsied. Serum was removed for IFAT, as well as spleen and liver fragments to make imprint smears and for PCR. Eight (88.9%) of these dogs presented ticks that were infective for 14 hamsters (41.2%), 12 (85.7%) of them infected peritoneally and two (14.3%) orally. PCR revealed 27 smears (40.9%) to be positive, 20 (62.5%) of them infected peritoneally and seven (20.6%) orally. IFAT showed 14 positive animals (41.2%). Based on these findings, we suggest that the vectorial capacity of R. sanguineus for L. chagasi should be evaluated further, opening new perspectives in the epidemiology of ZVL.
Collapse
Affiliation(s)
- Maria Teresa Zanatta Coutinho
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Caixa Postal 486, Avenida Antônio Carlos, 6627, Campus UFMG, Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Fujiwara RT, Bueno LL, Vale AM, Franca-Silva JC, da Costa RT, Quetz JDS, Machado-Coelho GL, Reis AB, Martins Filho OA, Genaro O, Nascimento E, Mayrink W. Flow cytometric assay in peripheral blood of dogs--reference values for leukocytes from Brazilian beagles. Pol J Vet Sci 2005; 8:17-22. [PMID: 15794469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Use of domestic reference values in the flow cytometry analysis is known to improve its accuracy by integrating local variations as gender, race and age. Up to date application of flow cytometry in veterinary medicine has been limited to describe the percentual values just for peripheral lymphocytes subsets of blood. We now report establishment of reference values for a wide range of proportional and absolute numbers of peripheral blood leukocytes, including T cells subsets, B cells, monocytes and eosinophils, applicable to the healthy population of Beagles in Brazil and other regions with similar demographic characteristics. Normal reference values were also established to estimate the gender-related differences. This information will provide clinical aid in the evaluation of immunologic status as well as standard values for experimental animals of dogs from Brazil and other similar regions.
Collapse
Affiliation(s)
- R T Fujiwara
- Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|