Interaction of human IgG chimeric antibodies with the human FcRI and FcRII receptors: Requirements for antibody-mediated host cell-target cell interaction

M. R. Walker, J. M. Woof, M. Brüggemann, R. Jefferis, D. R. Burton

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Abstract

Chimeric monoclonal antibodies (McAb), specific for the hapten 5-iodo-4-hydroxy-3-nitrophenacetyl (NIP), expressing human IgG1, IgG2, IgG3 and IgG4 subclass constant domains, have been examined for their ability to interact with the human FcRII receptor. Human red blood cells (RBC) sensitized by each of these McAbs have been assayed for their ability to form rosettes with the human histiocytic lymphoma U937 cell line, human B cell line Daudi and erythroblastoid K562 cell line. IgGI and IgG3 sensitized RBC formed significant rosettes with the FcR- and FcRII+ Daudi and K562 cell lines, the percentage of cells forming rosettes being directly proportional to the degree of sensitization of the RBC. Bromelin treating Daudi cells did not alter this pattern of reactivity, whereas bromelin treated FcRI+ and FcRII+ U937 cells formed significant resettes with IgG1, IgG3 and IgG4 sensitized RBC, demonstrating a difference in the IgG subclass specificity between human FcRI and FcRII. Murine IgG2b anti-NIP sensitized RBC did not form rosettes with any cell line tested; however, RBC sensitized by some members of a panel of murine IgG1 McAb, specific for the glycophorin A molecule, were able to form rosettes with Daudi, U937 and K562 cells. This interaction was enhanced by bromelin treating the Daudi or U937 cells and can be correlated to the disposition of the epitopes recognized, relative to the target cell membrane, those McAbs recognizing epitopes furthest from the RBC surface being most effective in interacting with FcRII. The data are interpreted in terms of a simple model for antibody-mediated cell-cell interaction.

Original languageEnglish
Pages (from-to)403-411
Number of pages9
JournalMolecular Immunology
Volume26
Issue number4
DOIs
Publication statusPublished - Apr 1989

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Cell Communication
Immunoglobulin G
Antibodies
Erythrocytes
U937 Cells
Bromelains
K562 Cells
Cell Line
Nitrohydroxyiodophenylacetate
Epitopes
Monoclonal Antibodies
Glycophorin
Lymphoma, Large B-Cell, Diffuse
Haptens
B-Lymphocytes
Cell Membrane

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title = "Interaction of human IgG chimeric antibodies with the human FcRI and FcRII receptors: Requirements for antibody-mediated host cell-target cell interaction",
abstract = "Chimeric monoclonal antibodies (McAb), specific for the hapten 5-iodo-4-hydroxy-3-nitrophenacetyl (NIP), expressing human IgG1, IgG2, IgG3 and IgG4 subclass constant domains, have been examined for their ability to interact with the human FcRII receptor. Human red blood cells (RBC) sensitized by each of these McAbs have been assayed for their ability to form rosettes with the human histiocytic lymphoma U937 cell line, human B cell line Daudi and erythroblastoid K562 cell line. IgGI and IgG3 sensitized RBC formed significant rosettes with the FcR- and FcRII+ Daudi and K562 cell lines, the percentage of cells forming rosettes being directly proportional to the degree of sensitization of the RBC. Bromelin treating Daudi cells did not alter this pattern of reactivity, whereas bromelin treated FcRI+ and FcRII+ U937 cells formed significant resettes with IgG1, IgG3 and IgG4 sensitized RBC, demonstrating a difference in the IgG subclass specificity between human FcRI and FcRII. Murine IgG2b anti-NIP sensitized RBC did not form rosettes with any cell line tested; however, RBC sensitized by some members of a panel of murine IgG1 McAb, specific for the glycophorin A molecule, were able to form rosettes with Daudi, U937 and K562 cells. This interaction was enhanced by bromelin treating the Daudi or U937 cells and can be correlated to the disposition of the epitopes recognized, relative to the target cell membrane, those McAbs recognizing epitopes furthest from the RBC surface being most effective in interacting with FcRII. The data are interpreted in terms of a simple model for antibody-mediated cell-cell interaction.",
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Interaction of human IgG chimeric antibodies with the human FcRI and FcRII receptors : Requirements for antibody-mediated host cell-target cell interaction. / Walker, M. R.; Woof, J. M.; Brüggemann, M.; Jefferis, R.; Burton, D. R.

In: Molecular Immunology, Vol. 26, No. 4, 04.1989, p. 403-411.

Research output: Contribution to journalArticle

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T1 - Interaction of human IgG chimeric antibodies with the human FcRI and FcRII receptors

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AU - Walker, M. R.

AU - Woof, J. M.

AU - Brüggemann, M.

AU - Jefferis, R.

AU - Burton, D. R.

PY - 1989/4

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