Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes

To define Babesia bigemina-specific antigens on the surface of infected erythrocytes, monoclonal antibodies (MAbs) were identified by live-cell immunofluorescence. As determined by live-cell immunofluorescence, two MAbs made to the Mexico strain reacted with the Mexico strain and three Kenya strains...

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Autores principales: Shompole, S., Perryman, L.E., Rurangirwa, F.R., McElwain, T.F., Jasmer, D.P., Musoke, A.J., Wells, C.W., McGuire, T.C.
Formato: Journal Article
Lenguaje:Inglés
Publicado: 1995
Materias:
Acceso en línea:https://hdl.handle.net/10568/28761
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author Shompole, S.
Perryman, L.E.
Rurangirwa, F.R.
McElwain, T.F.
Jasmer, D.P.
Musoke, A.J.
Wells, C.W.
McGuire, T.C.
author_browse Jasmer, D.P.
McElwain, T.F.
McGuire, T.C.
Musoke, A.J.
Perryman, L.E.
Rurangirwa, F.R.
Shompole, S.
Wells, C.W.
author_facet Shompole, S.
Perryman, L.E.
Rurangirwa, F.R.
McElwain, T.F.
Jasmer, D.P.
Musoke, A.J.
Wells, C.W.
McGuire, T.C.
author_sort Shompole, S.
collection Repository of Agricultural Research Outputs (CGSpace)
description To define Babesia bigemina-specific antigens on the surface of infected erythrocytes, monoclonal antibodies (MAbs) were identified by live-cell immunofluorescence. As determined by live-cell immunofluorescence, two MAbs made to the Mexico strain reacted with the Mexico strain and three Kenya strains, while three MAbs made to the Kenya-Ngong strain reacted with the Kenya strains but not the Mexico strain. Binding of MAb 44.18 (made to the Mexico strain) to a strain-common epitope was confirmed by immunoelectron microscopy and by surface-specific immunoprecipitation of (35S) methionine-labeled proteins (200, 28 and 16 kDa in size), which also demonstrated that the MAb recognized an epitope on proteins encoded by B. bigemina. In immunoblots, the MAb bound to predominant antigens with sizes of 200 and 220 kDa in erythrocyte lysates infected with strains from Puerto Rico, St. Croix, Texcoco (Mexico), Kenya, and Mexico. Major antigens with sizes of antigens bound to erythrocytes infected with either the Mexico or Kenya strains as determined by live-cell immunofluorescence, allowing the conclusion that at least one conserved surface epitope was recognized. Calf precipitation, and infected erythrocytes sensitized with these antibodies were phagocytized by cultured bovine peripheral blood monocytes. These results provide a rationable for evaluating antigens identified by MAb 44.18 individually and as components of subunit vaccines.
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spelling CGSpace287612022-01-29T16:16:48Z Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes Shompole, S. Perryman, L.E. Rurangirwa, F.R. McElwain, T.F. Jasmer, D.P. Musoke, A.J. Wells, C.W. McGuire, T.C. babesia bigemina antibodies protein isolates antigens To define Babesia bigemina-specific antigens on the surface of infected erythrocytes, monoclonal antibodies (MAbs) were identified by live-cell immunofluorescence. As determined by live-cell immunofluorescence, two MAbs made to the Mexico strain reacted with the Mexico strain and three Kenya strains, while three MAbs made to the Kenya-Ngong strain reacted with the Kenya strains but not the Mexico strain. Binding of MAb 44.18 (made to the Mexico strain) to a strain-common epitope was confirmed by immunoelectron microscopy and by surface-specific immunoprecipitation of (35S) methionine-labeled proteins (200, 28 and 16 kDa in size), which also demonstrated that the MAb recognized an epitope on proteins encoded by B. bigemina. In immunoblots, the MAb bound to predominant antigens with sizes of 200 and 220 kDa in erythrocyte lysates infected with strains from Puerto Rico, St. Croix, Texcoco (Mexico), Kenya, and Mexico. Major antigens with sizes of antigens bound to erythrocytes infected with either the Mexico or Kenya strains as determined by live-cell immunofluorescence, allowing the conclusion that at least one conserved surface epitope was recognized. Calf precipitation, and infected erythrocytes sensitized with these antibodies were phagocytized by cultured bovine peripheral blood monocytes. These results provide a rationable for evaluating antigens identified by MAb 44.18 individually and as components of subunit vaccines. 1995 2013-05-06T07:01:21Z 2013-05-06T07:01:21Z Journal Article https://hdl.handle.net/10568/28761 en Limited Access Infection and Immunity;63(9): 3507-3513
spellingShingle babesia bigemina
antibodies
protein isolates
antigens
Shompole, S.
Perryman, L.E.
Rurangirwa, F.R.
McElwain, T.F.
Jasmer, D.P.
Musoke, A.J.
Wells, C.W.
McGuire, T.C.
Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title_full Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title_fullStr Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title_full_unstemmed Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title_short Monoclonal antibody to a conserved epitope on proteins encoded by Babesia bigemina and present on the surface of intact infected erythrocytes
title_sort monoclonal antibody to a conserved epitope on proteins encoded by babesia bigemina and present on the surface of intact infected erythrocytes
topic babesia bigemina
antibodies
protein isolates
antigens
url https://hdl.handle.net/10568/28761
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