Interaction of rheumatoid factor and Entamoeba histolytica
The amoebae's cytotoxicity test and the amoebae's lysis test were used to show possible interactions between rheumatoid factor (RF) and Entamoeba histolytica. Amoebae's cytotoxic activity (ACA) was inhibited by affinity chromatography purified antiamoebae rabbit IgG (RIgG). Enhanced i...
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Universidade de São Paulo (USP)
1989
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Online Access: | https://doi.org/10.1590/S0036-46651989000400001 https://doaj.org/article/a2a2b7b74e68460a92611efc7435ed52 |
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ftdoajarticles:oai:doaj.org/article:a2a2b7b74e68460a92611efc7435ed52 2024-09-09T19:25:20+00:00 Interaction of rheumatoid factor and Entamoeba histolytica P.G. Kremsner W. Graninger 1989-08-01T00:00:00Z https://doi.org/10.1590/S0036-46651989000400001 https://doaj.org/article/a2a2b7b74e68460a92611efc7435ed52 EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651989000400001&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46651989000400001 https://doaj.org/article/a2a2b7b74e68460a92611efc7435ed52 Revista do Instituto de Medicina Tropical de São Paulo, Vol 31, Iss 4, Pp 207-212 (1989) Entamoeba histolytica Amoebae's lysis Rheumatoid factor Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1989 ftdoajarticles https://doi.org/10.1590/S0036-46651989000400001 2024-08-05T17:49:30Z The amoebae's cytotoxicity test and the amoebae's lysis test were used to show possible interactions between rheumatoid factor (RF) and Entamoeba histolytica. Amoebae's cytotoxic activity (ACA) was inhibited by affinity chromatography purified antiamoebae rabbit IgG (RIgG). Enhanced inhibition could be demonstrated with RIgG plus RF. But the same marked inhibition of ACA could be seen when replacing RF by heat inactivated normal human serum as a control. About 50% amoebae's lysis occurred when amoebae were brought together with native normal human serum (NNHS) as a source of complement. Amoebae's lysis increased to 60% when incubated with NHS plus human antiamoebae antibodies. No further augmentation could be obtained by the addition of RF. Using RIgG instead of human antibodies the lysis rate did not increase. Incubation of amoebae, NNHS, RIgG and RF even reduced amoebae's lysis. RF neither has an effect on ACA nor on complement mediated AL in vitro. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 31 4 207 212 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Entamoeba histolytica Amoebae's lysis Rheumatoid factor Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Entamoeba histolytica Amoebae's lysis Rheumatoid factor Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 P.G. Kremsner W. Graninger Interaction of rheumatoid factor and Entamoeba histolytica |
topic_facet |
Entamoeba histolytica Amoebae's lysis Rheumatoid factor Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
The amoebae's cytotoxicity test and the amoebae's lysis test were used to show possible interactions between rheumatoid factor (RF) and Entamoeba histolytica. Amoebae's cytotoxic activity (ACA) was inhibited by affinity chromatography purified antiamoebae rabbit IgG (RIgG). Enhanced inhibition could be demonstrated with RIgG plus RF. But the same marked inhibition of ACA could be seen when replacing RF by heat inactivated normal human serum as a control. About 50% amoebae's lysis occurred when amoebae were brought together with native normal human serum (NNHS) as a source of complement. Amoebae's lysis increased to 60% when incubated with NHS plus human antiamoebae antibodies. No further augmentation could be obtained by the addition of RF. Using RIgG instead of human antibodies the lysis rate did not increase. Incubation of amoebae, NNHS, RIgG and RF even reduced amoebae's lysis. RF neither has an effect on ACA nor on complement mediated AL in vitro. |
format |
Article in Journal/Newspaper |
author |
P.G. Kremsner W. Graninger |
author_facet |
P.G. Kremsner W. Graninger |
author_sort |
P.G. Kremsner |
title |
Interaction of rheumatoid factor and Entamoeba histolytica |
title_short |
Interaction of rheumatoid factor and Entamoeba histolytica |
title_full |
Interaction of rheumatoid factor and Entamoeba histolytica |
title_fullStr |
Interaction of rheumatoid factor and Entamoeba histolytica |
title_full_unstemmed |
Interaction of rheumatoid factor and Entamoeba histolytica |
title_sort |
interaction of rheumatoid factor and entamoeba histolytica |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1989 |
url |
https://doi.org/10.1590/S0036-46651989000400001 https://doaj.org/article/a2a2b7b74e68460a92611efc7435ed52 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 31, Iss 4, Pp 207-212 (1989) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651989000400001&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46651989000400001 https://doaj.org/article/a2a2b7b74e68460a92611efc7435ed52 |
op_doi |
https://doi.org/10.1590/S0036-46651989000400001 |
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Revista do Instituto de Medicina Tropical de São Paulo |
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31 |
container_issue |
4 |
container_start_page |
207 |
op_container_end_page |
212 |
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