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The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes
A monoclonal antibody called MRC OX-44 is described that labels all myeloid cells and peripheral lymphoid cells but only 12% of thymocytes. The OX-44+ thymic cells include most if not all cells found in the medulla but only a small fraction of the cortical cells. Together with CD4 and CD8 antigens,...
Formato: | Texto |
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Lenguaje: | English |
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The Rockefeller University Press
1987
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2188261/ https://www.ncbi.nlm.nih.gov/pubmed/3098892 |
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collection | PubMed |
description | A monoclonal antibody called MRC OX-44 is described that labels all myeloid cells and peripheral lymphoid cells but only 12% of thymocytes. The OX-44+ thymic cells include most if not all cells found in the medulla but only a small fraction of the cortical cells. Together with CD4 and CD8 antigens, seven subsets of thymic cell were defined and it was notable that most CD4- CD8- cells were OX-44+ whereas almost all CD4+ CD8+ cells were OX-44-. In functional tests, the OX-44+ cells accounted for all proliferation by thymocytes when stimulated by allogeneic spleen cells or concanavalin A plus growth factors and OX-44- cells were completely negative in these assays. Also, in tests for thymopoiesis after intra-thymic injection of cells, all activity was OX- 44+. It seems possible that the OX-44+ set may include all functionally relevant cells in the rat thymus. |
format | Text |
id | pubmed-2188261 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1987 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21882612008-04-17 The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes J Exp Med Articles A monoclonal antibody called MRC OX-44 is described that labels all myeloid cells and peripheral lymphoid cells but only 12% of thymocytes. The OX-44+ thymic cells include most if not all cells found in the medulla but only a small fraction of the cortical cells. Together with CD4 and CD8 antigens, seven subsets of thymic cell were defined and it was notable that most CD4- CD8- cells were OX-44+ whereas almost all CD4+ CD8+ cells were OX-44-. In functional tests, the OX-44+ cells accounted for all proliferation by thymocytes when stimulated by allogeneic spleen cells or concanavalin A plus growth factors and OX-44- cells were completely negative in these assays. Also, in tests for thymopoiesis after intra-thymic injection of cells, all activity was OX- 44+. It seems possible that the OX-44+ set may include all functionally relevant cells in the rat thymus. The Rockefeller University Press 1987-01-01 /pmc/articles/PMC2188261/ /pubmed/3098892 Text en 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 | Articles The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title | The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title_full | The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title_fullStr | The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title_full_unstemmed | The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title_short | The MRC OX-44 antigen marks a functionally relevant subset among rat thymocytes |
title_sort | mrc ox-44 antigen marks a functionally relevant subset among rat thymocytes |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2188261/ https://www.ncbi.nlm.nih.gov/pubmed/3098892 |