The use of haptenated immunoglobulins to induce B cell tolerance in vitro. The roles of hapten density and the Fc portion of the immunoglobulin carrier

T. J. Waldschmidt, Y. Borel, E. S. Vitetta

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The relationship between the Fc region of trinitrophenylated (TNP)-immunoglobulins (Ig), and their ability to induce tolerance was examined. It was found that adult B cells responding to a T-independent (TI) antigen were tolerized by TNP11 human gamma globulin (HGG), but not by TNP10 (Fab')2 fragments of HGG. Increasing the hapten density on the F(ab')2 fragments overcame their inability to induce tolerance. Murine myeloma proteins of different IgG subclasses were similarly tested. A TNP12-IgG2a and a TNP11-IgG1 induced tolerance, whereas two TNP11-12-IgG3 did not. However a more heavily haptenated TNP18-IgG3 was tolerogenic. These results suggest that lightly haptenated immunoglobulins depend upon Fc receptor binding to induce tolerance in adult B cells. Non-Fc receptor-binding carriers are not tolerogenic unless they are more heavily haptenated. Finally, T cell and macrophage depletion experiments suggest that the tolerogens act directly on the B cells.

Original languageEnglish (US)
Pages (from-to)2204-2209
Number of pages6
JournalJournal of Immunology
Volume131
Issue number5
StatePublished - 1983

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Immunoglobulin Fc Fragments
Haptens
Immunoglobulins
B-Lymphocytes
Immunoglobulin G
gamma-Globulins
T Independent Antigens
Myeloma Proteins
Immunoglobulin Fab Fragments
Fc Receptors
Macrophages
T-Lymphocytes
In Vitro Techniques

ASJC Scopus subject areas

  • Immunology

Cite this

The use of haptenated immunoglobulins to induce B cell tolerance in vitro. The roles of hapten density and the Fc portion of the immunoglobulin carrier. / Waldschmidt, T. J.; Borel, Y.; Vitetta, E. S.

In: Journal of Immunology, Vol. 131, No. 5, 1983, p. 2204-2209.

Research output: Contribution to journalArticle

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