Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil
Trophozoites from cultures of Entamoeba histolytica strains isolated and grown axenically in Brazil (ICB-CSP, ICB-462 and ICB-32) were used for immune sera production and for characterization of their antigens by using electrophoretic and glycoproteic profiles, in parallel with a standard strain iso...
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Universidade de São Paulo (USP)
1991
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ftdoajarticles:oai:doaj.org/article:fd8606e75f78469899581ca6f1c6ef42 2024-09-09T19:26:40+00:00 Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil Semíramis Guimarães Haidée Urdaneta Edward F. Silva Carlos Alberto P. Tavares 1991-02-01T00:00:00Z https://doi.org/10.1590/S0036-46651991000100002 https://doaj.org/article/fd8606e75f78469899581ca6f1c6ef42 EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651991000100002 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651991000100002 0036-4665 1678-9946 https://doaj.org/article/fd8606e75f78469899581ca6f1c6ef42 Revista do Instituto de Medicina Tropical de São Paulo, Vol 33, Iss 1, Pp 6-11 (1991) Entamoeba histolytica Axenic strains Antigens Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1991 ftdoajarticles https://doi.org/10.1590/S0036-46651991000100002 2024-08-05T17:49:30Z Trophozoites from cultures of Entamoeba histolytica strains isolated and grown axenically in Brazil (ICB-CSP, ICB-462 and ICB-32) were used for immune sera production and for characterization of their antigens by using electrophoretic and glycoproteic profiles, in parallel with a standard strain isolated and kept under axenic conditions in USA (HK-9). Hyperimmune sera, presenting high antibody titers with homologous and heterologous antigens, were obtained. The four strains in study revealed similar and complex electrophoretic and glycoproteic profiles showing polypep-tides with molecular weights ranging from 200 to less than 29 kDa. No significant differences were detected between the pathogenic and non-pathogenic strains. Trofozoítos obtidos de cultura de Entamoeba histolytica isoladas e axenizadas no Brasil (ICB-CSP, ICB-462 e ICB-32) foram utilizados para a produção de soros imunes em coelhos e para a caracterização de antígenos através dos seus perfis eletroforético e glicoproteico, em paralelo com uma cepa padrão isolada e axenizada nos Estados Unidos (HK-9). Obtiveram-se soros hiperimunes, reativos frente aos antígenos homólogos e heterólogos. As quatro cepas em estudo apresentaram perfis eletroforético e glicoproteico complexos e semelhantes, compostos por polipeptídeos com pesos moleculares variando de 200 kDa a menos de 29 kDa. Não se detectaram diferenças significativas entre as cepas patogênicas e não patogênicas. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 33 1 6 11 |
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topic |
Entamoeba histolytica Axenic strains Antigens Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Entamoeba histolytica Axenic strains Antigens Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Semíramis Guimarães Haidée Urdaneta Edward F. Silva Carlos Alberto P. Tavares Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
topic_facet |
Entamoeba histolytica Axenic strains Antigens Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Trophozoites from cultures of Entamoeba histolytica strains isolated and grown axenically in Brazil (ICB-CSP, ICB-462 and ICB-32) were used for immune sera production and for characterization of their antigens by using electrophoretic and glycoproteic profiles, in parallel with a standard strain isolated and kept under axenic conditions in USA (HK-9). Hyperimmune sera, presenting high antibody titers with homologous and heterologous antigens, were obtained. The four strains in study revealed similar and complex electrophoretic and glycoproteic profiles showing polypep-tides with molecular weights ranging from 200 to less than 29 kDa. No significant differences were detected between the pathogenic and non-pathogenic strains. Trofozoítos obtidos de cultura de Entamoeba histolytica isoladas e axenizadas no Brasil (ICB-CSP, ICB-462 e ICB-32) foram utilizados para a produção de soros imunes em coelhos e para a caracterização de antígenos através dos seus perfis eletroforético e glicoproteico, em paralelo com uma cepa padrão isolada e axenizada nos Estados Unidos (HK-9). Obtiveram-se soros hiperimunes, reativos frente aos antígenos homólogos e heterólogos. As quatro cepas em estudo apresentaram perfis eletroforético e glicoproteico complexos e semelhantes, compostos por polipeptídeos com pesos moleculares variando de 200 kDa a menos de 29 kDa. Não se detectaram diferenças significativas entre as cepas patogênicas e não patogênicas. |
format |
Article in Journal/Newspaper |
author |
Semíramis Guimarães Haidée Urdaneta Edward F. Silva Carlos Alberto P. Tavares |
author_facet |
Semíramis Guimarães Haidée Urdaneta Edward F. Silva Carlos Alberto P. Tavares |
author_sort |
Semíramis Guimarães |
title |
Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
title_short |
Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
title_full |
Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
title_fullStr |
Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
title_full_unstemmed |
Entamoeba histolytica: antigenic characterization of axenic strains from Brazil Entamoeba histolytica: caracterização antigênica de cepas axênicas do Brasil |
title_sort |
entamoeba histolytica: antigenic characterization of axenic strains from brazil entamoeba histolytica: caracterização antigênica de cepas axênicas do brasil |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1991 |
url |
https://doi.org/10.1590/S0036-46651991000100002 https://doaj.org/article/fd8606e75f78469899581ca6f1c6ef42 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 33, Iss 1, Pp 6-11 (1991) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651991000100002 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651991000100002 0036-4665 1678-9946 https://doaj.org/article/fd8606e75f78469899581ca6f1c6ef42 |
op_doi |
https://doi.org/10.1590/S0036-46651991000100002 |
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Revista do Instituto de Medicina Tropical de São Paulo |
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33 |
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6 |
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11 |
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