Analysis of monoclonal antibodies specific for the gamma alpha TcR

Alpha gamma T cells in ruminants can be subdivided in two or more subpopulations on the basis of the expression of surface antigen WC1, which can exist in different isoforms. In this study, 18 monoclonal antibodies (mAbs) submitted to the Third International Workshop that were predicted to react wit...

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Autores principales: Davis, W.C., Brown, W.C., Hamilton, M.J., Wyatt, C.R., Orden, J.A., Khalid, A.M., Naessens, Jan
Formato: Journal Article
Lenguaje:Inglés
Publicado: Elsevier 1996
Materias:
Acceso en línea:https://hdl.handle.net/10568/29857
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author Davis, W.C.
Brown, W.C.
Hamilton, M.J.
Wyatt, C.R.
Orden, J.A.
Khalid, A.M.
Naessens, Jan
author_browse Brown, W.C.
Davis, W.C.
Hamilton, M.J.
Khalid, A.M.
Naessens, Jan
Orden, J.A.
Wyatt, C.R.
author_facet Davis, W.C.
Brown, W.C.
Hamilton, M.J.
Wyatt, C.R.
Orden, J.A.
Khalid, A.M.
Naessens, Jan
author_sort Davis, W.C.
collection Repository of Agricultural Research Outputs (CGSpace)
description Alpha gamma T cells in ruminants can be subdivided in two or more subpopulations on the basis of the expression of surface antigen WC1, which can exist in different isoforms. In this study, 18 monoclonal antibodies (mAbs) submitted to the Third International Workshop that were predicted to react with Alpha gamma TcR molecules were analysed and expression of their antigens was investigated on the different Alpha gamma T cell subpopulations. A set of control mAbs positive for TcR1 (86D), BoCD3 (MM1A), WC1 (B7A1, BAQ4A, CACTB32A, and BAQ89A) was included for comparative studies. Previous investigations demonstrated eight of the mAbs immunoprecipitated peptides with apparent Mrs or 37 and/or 47kDa, indicating they recognized determinants on the T cell receptor, TcR1. Two color flow cytometric analyses in the present study demonstrated the mAbs formed three groups; group 1, a set of mAbs that recognize TcR1 determinants on some alpha gamma T cells: TcR1-N6 and TcR1-N7 respectively. mAbs from the latter groups define families of TcR1 molecules that express either one or both of the determinants. These antigenically distinct forms of TcR1 are expressed in equal proportion on the two Alpha gamma T cell populations that express one of the mutually exclusive isoforms of WC1, WC1-N3 and WC1-N4. The data indicate usage of the mAb-defined families of the alpha gamma TcR is primarily restricted to the WC1+ subpopulation of alpha gamma T cells. However, a small subpopulation of CD2+, WC1- alpha gamma T cells expresses a form of TcR1 positive for the determinant TcR1-N6.
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spelling CGSpace298572024-04-25T06:01:36Z Analysis of monoclonal antibodies specific for the gamma alpha TcR Davis, W.C. Brown, W.C. Hamilton, M.J. Wyatt, C.R. Orden, J.A. Khalid, A.M. Naessens, Jan ruminants monoclonal antibodies lymphocytes bovidae Alpha gamma T cells in ruminants can be subdivided in two or more subpopulations on the basis of the expression of surface antigen WC1, which can exist in different isoforms. In this study, 18 monoclonal antibodies (mAbs) submitted to the Third International Workshop that were predicted to react with Alpha gamma TcR molecules were analysed and expression of their antigens was investigated on the different Alpha gamma T cell subpopulations. A set of control mAbs positive for TcR1 (86D), BoCD3 (MM1A), WC1 (B7A1, BAQ4A, CACTB32A, and BAQ89A) was included for comparative studies. Previous investigations demonstrated eight of the mAbs immunoprecipitated peptides with apparent Mrs or 37 and/or 47kDa, indicating they recognized determinants on the T cell receptor, TcR1. Two color flow cytometric analyses in the present study demonstrated the mAbs formed three groups; group 1, a set of mAbs that recognize TcR1 determinants on some alpha gamma T cells: TcR1-N6 and TcR1-N7 respectively. mAbs from the latter groups define families of TcR1 molecules that express either one or both of the determinants. These antigenically distinct forms of TcR1 are expressed in equal proportion on the two Alpha gamma T cell populations that express one of the mutually exclusive isoforms of WC1, WC1-N3 and WC1-N4. The data indicate usage of the mAb-defined families of the alpha gamma TcR is primarily restricted to the WC1+ subpopulation of alpha gamma T cells. However, a small subpopulation of CD2+, WC1- alpha gamma T cells expresses a form of TcR1 positive for the determinant TcR1-N6. 1996-08 2013-06-11T09:25:10Z 2013-06-11T09:25:10Z Journal Article https://hdl.handle.net/10568/29857 en Limited Access Elsevier Veterinary Immunology and Immunopathology;52(4): 275-283
spellingShingle ruminants
monoclonal antibodies
lymphocytes
bovidae
Davis, W.C.
Brown, W.C.
Hamilton, M.J.
Wyatt, C.R.
Orden, J.A.
Khalid, A.M.
Naessens, Jan
Analysis of monoclonal antibodies specific for the gamma alpha TcR
title Analysis of monoclonal antibodies specific for the gamma alpha TcR
title_full Analysis of monoclonal antibodies specific for the gamma alpha TcR
title_fullStr Analysis of monoclonal antibodies specific for the gamma alpha TcR
title_full_unstemmed Analysis of monoclonal antibodies specific for the gamma alpha TcR
title_short Analysis of monoclonal antibodies specific for the gamma alpha TcR
title_sort analysis of monoclonal antibodies specific for the gamma alpha tcr
topic ruminants
monoclonal antibodies
lymphocytes
bovidae
url https://hdl.handle.net/10568/29857
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