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IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS
1. The defects produced on the membrane of the human red blood cell by the action of complement and antibody have been studied by the use of the electron microscope. These are round to slightly ovoid holes and are surrounded by an irregular ring, about 20 A thick. The mean diameter of the holes is a...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1966
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2138177/ https://www.ncbi.nlm.nih.gov/pubmed/5941785 |
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author | Rosse, Wendell F. Dourmashkin, Robert Humphrey, John H. |
author_facet | Rosse, Wendell F. Dourmashkin, Robert Humphrey, John H. |
author_sort | Rosse, Wendell F. |
collection | PubMed |
description | 1. The defects produced on the membrane of the human red blood cell by the action of complement and antibody have been studied by the use of the electron microscope. These are round to slightly ovoid holes and are surrounded by an irregular ring, about 20 A thick. The mean diameter of the holes is about 103 A if human complement is used (regardless of the antibody used for sensitization) and about 88 A if guinea pig complement is used. 2. The holes in normal and PNH red cells appear to be identical, under the same conditions. The membrane defects produced by lysis of PNH cells with acidified normal serum (the Ham's test) are identical to those produced by complement lysis with specific antibody, indicating that complement is undoubtedly the cause of such lysis. 3. Evidence is presented that when human complement acts on human red cells sensitized with anti-I antibody, each complete activation of complement leads to the production of a cluster of holes. This contrasts to the action of guinea pig complement, on sheep cells, each activation of which leads to a single hole. 4. The maximum number of anti-I antibody molecules which can attach to a human red cell (i.e. the minimum number of antigen sites) is about 500,000 for both normal and PNH cells. 5. The number of holes produced during lysis of the PNH cell is the same as that of the normal cell. When all cells are lysed by am excess of C', a mean of about 90,000 holes are present on each membrane. When complement is limited, a larger proportion of PNH cells are lysed due to their peculiar sensitivity to C' but the number of holes on each lysed cell is the same as for normal cells lysed by the same concentration of C'. |
format | Text |
id | pubmed-2138177 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1966 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21381772008-04-17 IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS Rosse, Wendell F. Dourmashkin, Robert Humphrey, John H. J Exp Med Article 1. The defects produced on the membrane of the human red blood cell by the action of complement and antibody have been studied by the use of the electron microscope. These are round to slightly ovoid holes and are surrounded by an irregular ring, about 20 A thick. The mean diameter of the holes is about 103 A if human complement is used (regardless of the antibody used for sensitization) and about 88 A if guinea pig complement is used. 2. The holes in normal and PNH red cells appear to be identical, under the same conditions. The membrane defects produced by lysis of PNH cells with acidified normal serum (the Ham's test) are identical to those produced by complement lysis with specific antibody, indicating that complement is undoubtedly the cause of such lysis. 3. Evidence is presented that when human complement acts on human red cells sensitized with anti-I antibody, each complete activation of complement leads to the production of a cluster of holes. This contrasts to the action of guinea pig complement, on sheep cells, each activation of which leads to a single hole. 4. The maximum number of anti-I antibody molecules which can attach to a human red cell (i.e. the minimum number of antigen sites) is about 500,000 for both normal and PNH cells. 5. The number of holes produced during lysis of the PNH cell is the same as that of the normal cell. When all cells are lysed by am excess of C', a mean of about 90,000 holes are present on each membrane. When complement is limited, a larger proportion of PNH cells are lysed due to their peculiar sensitivity to C' but the number of holes on each lysed cell is the same as for normal cells lysed by the same concentration of C'. The Rockefeller University Press 1966-06-01 /pmc/articles/PMC2138177/ /pubmed/5941785 Text en Copyright © 1966 by The Rockefeller University Press This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Rosse, Wendell F. Dourmashkin, Robert Humphrey, John H. IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title | IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title_full | IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title_fullStr | IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title_full_unstemmed | IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title_short | IMMUNE LYSIS OF NORMAL HUMAN AND PAROXYSMAL NOCTURNAL HEMOGLOBINURIA (PNH) RED BLOOD CELLS : III. THE MEMBRANE DEFECTS CAUSED BY COMPLEMENT LYSIS |
title_sort | immune lysis of normal human and paroxysmal nocturnal hemoglobinuria (pnh) red blood cells : iii. the membrane defects caused by complement lysis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2138177/ https://www.ncbi.nlm.nih.gov/pubmed/5941785 |
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