Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos
Neutrophils, eosinophils and macrophages are cells that interact with invading parasites and naive hosts have been shown to have anti-parasitic activity. The initial reaction of these leukocytes is the generation of reactive oxygen species (ROS) to play in parasite expulsion. The present work was ca...
Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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Universidade de São Paulo (USP)
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ftdoajarticles:oai:doaj.org/article:30cfab1c6f9e4fa4890f3e01160c4578 2024-09-09T19:28:25+00:00 Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos Silvana Marina Piccoli Pugine Michelle Fernandes de Faria Antônio Augusto Mendes Maia Claudia Ribeiro do Valle Camila Boschini Mirele Daiana Poleti Marcia Ramos Monteiro da Silva Mariza Pires De Melo 2005-04-01T00:00:00Z https://doi.org/10.1590/S0036-46652005000200006 https://doaj.org/article/30cfab1c6f9e4fa4890f3e01160c4578 EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652005000200006 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46652005000200006 0036-4665 1678-9946 https://doaj.org/article/30cfab1c6f9e4fa4890f3e01160c4578 Revista do Instituto de Medicina Tropical de São Paulo, Vol 47, Iss 2, Pp 91-94 (2005) Leukocyte Taenia solium Oxygen Catalase Hydrogen peroxide Superoxide Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2005 ftdoajarticles https://doi.org/10.1590/S0036-46652005000200006 2024-08-05T17:49:30Z Neutrophils, eosinophils and macrophages are cells that interact with invading parasites and naive hosts have been shown to have anti-parasitic activity. The initial reaction of these leukocytes is the generation of reactive oxygen species (ROS) to play in parasite expulsion. The present work was carried out to study the effect of total extract, scolex and membrane fractions from Cysticercus cellulosae on respiratory burst by pig neutrophils. Hydrogen peroxide (H2O2) production by neutrophils incubated with metacestode fractions from C. cellulosae showed an increase of: 190% (total extract), 120% (scolex) and 44% (membrane). High antioxidant catalatic activity (33%, 28%, 28% by total extract, scolex and membrane, respectively) was observed in neutrophils incubated with metacestode fractions, which could be an attempt at self-protection. Scolex and membrane fractions increased the phagocytic capacity of neutrophils (44% and 28%, respectively). On the other hand, total cysticerci did not alter the phagocytosis, possibly due to modifications in membrane function, caused by high ROS production from neutrophils in the presence of total cysticerci. Total fraction from C. cellulosae is toxic for neutrophils as shown by the decrease in phagocytic capacity, probably caused by high levels of ROS formation. The difference in toxicity of total extract, scolex and membrane fractions on neutrophils can be explained by the presence of an antigenic effect of the vesicular fluid in the total extract of C. cellulosae. Neutrófilos, eosinófilos e macrófagos são células que interagem com os parasitas no corpo do hospedeiro desenvolvendo atividade antiparasitária. A reação inicial destes leucócitos é a geração de espécies reativas de oxigênio (ERO) a fim de expulsar os parasitas. No presente trabalho estudou-se o efeito da fração total, de escolex e de membrana de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos. A produção de peróxido de hidrogênio (H2O2) pelos neutrófilos incubados com as frações de C. ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 47 2 91 94 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Leukocyte Taenia solium Oxygen Catalase Hydrogen peroxide Superoxide Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Leukocyte Taenia solium Oxygen Catalase Hydrogen peroxide Superoxide Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Silvana Marina Piccoli Pugine Michelle Fernandes de Faria Antônio Augusto Mendes Maia Claudia Ribeiro do Valle Camila Boschini Mirele Daiana Poleti Marcia Ramos Monteiro da Silva Mariza Pires De Melo Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
topic_facet |
Leukocyte Taenia solium Oxygen Catalase Hydrogen peroxide Superoxide Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Neutrophils, eosinophils and macrophages are cells that interact with invading parasites and naive hosts have been shown to have anti-parasitic activity. The initial reaction of these leukocytes is the generation of reactive oxygen species (ROS) to play in parasite expulsion. The present work was carried out to study the effect of total extract, scolex and membrane fractions from Cysticercus cellulosae on respiratory burst by pig neutrophils. Hydrogen peroxide (H2O2) production by neutrophils incubated with metacestode fractions from C. cellulosae showed an increase of: 190% (total extract), 120% (scolex) and 44% (membrane). High antioxidant catalatic activity (33%, 28%, 28% by total extract, scolex and membrane, respectively) was observed in neutrophils incubated with metacestode fractions, which could be an attempt at self-protection. Scolex and membrane fractions increased the phagocytic capacity of neutrophils (44% and 28%, respectively). On the other hand, total cysticerci did not alter the phagocytosis, possibly due to modifications in membrane function, caused by high ROS production from neutrophils in the presence of total cysticerci. Total fraction from C. cellulosae is toxic for neutrophils as shown by the decrease in phagocytic capacity, probably caused by high levels of ROS formation. The difference in toxicity of total extract, scolex and membrane fractions on neutrophils can be explained by the presence of an antigenic effect of the vesicular fluid in the total extract of C. cellulosae. Neutrófilos, eosinófilos e macrófagos são células que interagem com os parasitas no corpo do hospedeiro desenvolvendo atividade antiparasitária. A reação inicial destes leucócitos é a geração de espécies reativas de oxigênio (ERO) a fim de expulsar os parasitas. No presente trabalho estudou-se o efeito da fração total, de escolex e de membrana de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos. A produção de peróxido de hidrogênio (H2O2) pelos neutrófilos incubados com as frações de C. ... |
format |
Article in Journal/Newspaper |
author |
Silvana Marina Piccoli Pugine Michelle Fernandes de Faria Antônio Augusto Mendes Maia Claudia Ribeiro do Valle Camila Boschini Mirele Daiana Poleti Marcia Ramos Monteiro da Silva Mariza Pires De Melo |
author_facet |
Silvana Marina Piccoli Pugine Michelle Fernandes de Faria Antônio Augusto Mendes Maia Claudia Ribeiro do Valle Camila Boschini Mirele Daiana Poleti Marcia Ramos Monteiro da Silva Mariza Pires De Melo |
author_sort |
Silvana Marina Piccoli Pugine |
title |
Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
title_short |
Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
title_full |
Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
title_fullStr |
Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
title_full_unstemmed |
Effect of Cysticercus cellulosae fractions on the respiratory burst of pig neutrophils Efeito de frações de Cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
title_sort |
effect of cysticercus cellulosae fractions on the respiratory burst of pig neutrophils efeito de frações de cysticercus cellulosae sobre a explosão respiratória de neutrófilos de suínos |
publisher |
Universidade de São Paulo (USP) |
publishDate |
2005 |
url |
https://doi.org/10.1590/S0036-46652005000200006 https://doaj.org/article/30cfab1c6f9e4fa4890f3e01160c4578 |
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Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 47, Iss 2, Pp 91-94 (2005) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652005000200006 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46652005000200006 0036-4665 1678-9946 https://doaj.org/article/30cfab1c6f9e4fa4890f3e01160c4578 |
op_doi |
https://doi.org/10.1590/S0036-46652005000200006 |
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Revista do Instituto de Medicina Tropical de São Paulo |
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47 |
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