1
|
Díaz Á, Sagasti C, Casaravilla C. Granulomatous responses in larval taeniid infections. Parasite Immunol 2018. [DOI: 10.1111/pim.12523] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Á. Díaz
- Área/Cátedra de Inmunología; Departamento de Biociencias (Facultad de Química) e Instituto de Química Biológica (Facultad de Ciencias); Universidad de la República; Montevideo Uruguay
| | - C. Sagasti
- Área/Cátedra de Inmunología; Departamento de Biociencias (Facultad de Química) e Instituto de Química Biológica (Facultad de Ciencias); Universidad de la República; Montevideo Uruguay
| | - C. Casaravilla
- Área/Cátedra de Inmunología; Departamento de Biociencias (Facultad de Química) e Instituto de Química Biológica (Facultad de Ciencias); Universidad de la República; Montevideo Uruguay
| |
Collapse
|
2
|
Souza AJ, Milhomem AC, Rezende HH, Matos-Silva H, Vinaud MC, Oliveira MA, Castro AM, Lino-Júnior RS. Taenia crassiceps antigens induce a Th2 immune response and attenuate injuries experimentally induced by neurotoxoplasmosis in BALB/c mice. Parasitol Int 2018; 67:16-22. [DOI: 10.1016/j.parint.2017.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/30/2017] [Accepted: 10/02/2017] [Indexed: 01/04/2023]
|
3
|
Sulima A, Bień J, Savijoki K, Näreaho A, Sałamatin R, Conn DB, Młocicki D. Identification of immunogenic proteins of the cysticercoid of Hymenolepis diminuta. Parasit Vectors 2017; 10:577. [PMID: 29157281 PMCID: PMC5697066 DOI: 10.1186/s13071-017-2519-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/01/2017] [Indexed: 01/03/2023] Open
Abstract
Background A wide range of molecules are used by tapeworm metacestodes to establish successful infection in the hostile environment of the host. Reports indicating the proteins in the cestode-host interactions are limited predominantly to taeniids, with no previous data available for non-taeniid species. A non-taeniid, Hymenolepis diminuta, represents one of the most important model species in cestode biology and exhibits an exceptional developmental plasticity in its life-cycle, which involves two phylogenetically distant hosts, arthropod and vertebrate. Results We identified H. diminuta cysticercoid proteins that were recognized by sera of H. diminuta-infected rats using two-dimensional gel electrophoresis (2DE), 2D-immunoblotting, and LC-MS/MS mass spectrometry. Proteomic analysis of 42 antigenic spots revealed 70 proteins. The largest number belonged to structural proteins and to the heat-shock protein (HSP) family. These results show a number of the antigenic proteins of the cysticercoid stage, which were present already in the insect host prior to contact with the mammal host. These are the first parasite antigens that the mammal host encounters after the infection, therefore they may represent some of the molecules important in host-parasite interactions at the early stage of infection. Conclusions These results could help in understanding how H. diminuta and other cestodes adapt to their diverse and complex parasitic life-cycles and show universal molecules used among diverse groups of cestodes to escape the host response to infection. Electronic supplementary material The online version of this article (10.1186/s13071-017-2519-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Anna Sulima
- Department of General Biology and Parasitology, Medical University of Warsaw, Warsaw, Poland
| | - Justyna Bień
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | - Kirsi Savijoki
- Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Anu Näreaho
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
| | - Rusłan Sałamatin
- Department of General Biology and Parasitology, Medical University of Warsaw, Warsaw, Poland.,Department of Medical Parasitology, National Institute of Public Health - National Institute of Hygiene, Warsaw, Poland
| | - David Bruce Conn
- One Health Center, Berry College, Mount Berry, GA, USA.,Department of Invertebrate Zoology, Museum of Comparative Zoology, Harvard University, Cambridge, MA, USA
| | - Daniel Młocicki
- Department of General Biology and Parasitology, Medical University of Warsaw, Warsaw, Poland. .,Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland.
| |
Collapse
|
4
|
Nasareth JM, Fraga CM, Lima NF, Picanço GA, Costa TL, Lino-Junior RS, Vinaud MC. In vivo treatment with nitazoxanide induces anaerobic metabolism in experimental intraperitoneal cysticercosis. Parasitol Res 2017; 116:3037-3041. [PMID: 28914356 DOI: 10.1007/s00436-017-5614-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 09/05/2017] [Indexed: 01/23/2023]
Abstract
Taenia crassiceps cysticerci are used as experimental model to study the host-parasite relationship and treatment of cysticercosis. One of the described mode of actions of nitazoxanide (NTZ) is to block the pyruvate ferredoxine oxidoreductase (PFOR) enzyme which is an essential enzyme to the parasite metabolism. The aim of this study was to determine the in vivo influence of one dosage of NTZ on the energetic metabolism of T. crassiceps cysticerci. Thirty days after the intraperitoneal inoculation of T. crassiceps cysticerci, BALB/c mice were orally treated with 7.5 mg/kg of NTZ. The control group was treated with physiologic solution (NaCl 0.9%). After 24 h, the animals were euthanized and the cysticerci were removed, washed, and processed for biochemical analysis. The organic acids detection occurred through high-performance liquid chromatographic and spectrophotometric analysis. While there was no difference in the glucose dosages, it was possible to observe a significant increase in the lactate concentrations and a decrease in the pyruvate concentrations of the NTZ-treated groups when compared to the control group. Also, there was a decrease in the urea and alpha-ketoglutarate concentrations. This probably occurred due to the impairment of the parasite's PFOR and nitroreductases leading an impairment of the mitochondrial aerobic pathways. In conclusion, the in vivo NTZ treatment leads to an increase in the lactic fermentation and to a decrease in the protein catabolism in T. crassiceps cysticerci.
Collapse
Affiliation(s)
- Joelma M Nasareth
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Carolina M Fraga
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Nayana F Lima
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Guaraciara A Picanço
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Tatiane L Costa
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Ruy S Lino-Junior
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil
| | - Marina Clare Vinaud
- Tropical Pathology and Public Health Institute, Federal University of Goias, Rua 235, s/n, Setor Leste Universitário, Goiânia, Goiás, 74605-050, Brazil.
| |
Collapse
|
5
|
Pacheco IL, Abril N, Morales-Prieto N, Bautista MJ, Zafra R, Escamilla A, Ruiz MT, Martínez-Moreno A, Pérez J. Th1/Th2 balance in the liver and hepatic lymph nodes of vaccinated and unvaccinated sheep during acute stages of infection with Fasciola hepatica. Vet Parasitol 2017; 238:61-65. [PMID: 28385539 DOI: 10.1016/j.vetpar.2017.03.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/09/2017] [Accepted: 03/24/2017] [Indexed: 10/19/2022]
Abstract
The expression of IFNγ and IL4 was quantified using q-PCR in the liver and hepatic lymph nodes (HLN) of sheep during early stages of infection with Fasciola hepatica (1, 3, 9 and 18days post-infection, dpi). A group of animals (Group 1) were vaccinated with Fasciola hepatica recombinant cathepsin L1 (FhCL1) in montanide 70 VG prior to infection, a second group (group 2) was used as infected control and a third (group 3) was used as uninfected control. To study vaccine efficacy three additional groups were sacrificed 19 weeks post-infection (group 4 immunized with CL1, group 5 with the adjuvant and group 6 was used as infected control). The vaccinated group did not show significant fluke reduction compared to the adjuvant group and infected control group. IL4 expression was observed to increase at 9 dpi and was further elevated at 18 dpi in the liver and HLN of vaccinated and infected control groups compared to the uninfected group. IFNγ expression exhibited different dynamics in the liver and HLN compared to IL4; thus, in the liver this cytokine increased at 9 dpi in the vaccinated and at 18 dpi in vaccinated and infected control groups, while in the HLN it decreased gradually and significantly from 1 dpi onwards. These results suggest that a marked Th2 polarization is present from 9 dpi in HLN and from 18 dpi in the liver. The increase of IFNγ in the liver may correspond with tissue damage response with granuloma formation. The FhCL1 vaccine did not alter the Th1/Th2 balance when compared to unvaccinated and infected sheep. The study of IFNγ and IL4 in the various tissue compartments in sheep could facilitate selection of new adjuvants inducing a strong Th1 response for a more rationale vaccine formulation.
Collapse
Affiliation(s)
- I L Pacheco
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - N Abril
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Córdoba, Spain
| | - N Morales-Prieto
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Córdoba, Spain
| | - M J Bautista
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - R Zafra
- Department of Animal Health (Parasitology), Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - A Escamilla
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - M T Ruiz
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - A Martínez-Moreno
- Department of Animal Health (Parasitology), Faculty of Veterinary Medicine, University of Córdoba, Spain
| | - J Pérez
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, Spain.
| |
Collapse
|