Activation of murine B lymphocytes by anti-immunoglobulin is an inductive signal leading to immunoglobulin secretion

David Parker, D. C. Wadsworth, G. B. Schneider

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Cultures of isolated mouse splenic B lymphocytes activated by the divalent F(ab')2 fragment of purified rabbit anti-mouse Fab or class-specific anti-mouse IgM antibodies can be driven on to high-rate Ig secretion by the addition of the supernatant fluid of a 24-h culture of concanavalin A-activated spleen cells (SN). The polyclonal antibody response to anti-Ig plus SN is comparable in magnitude with the lipopolysaccharide response as measured in a reverse plaque assay. The addition of SN can be delayed for 24 h after addition of anti-Ig without changing the kinetics of the response. Addition at 48 h delays the response by 24 h after addition of anti-Ig without changing the kinetics of the response. Addition at 48 h delays the response by 24 h. The response to F(ab')2 anti-Fab plus SN is sensitive to Fc-dependent inhibition because intact anti-Fab antibodies inhibit strongly at relatively low concentration. The monovalent Fab' fragment fails to induce Ig secretion, indicating that cross-linkage of surface immunoglobulin is required. Although the production of active SN is T cell dependent, the response to anti-Ig plus SN is T independent. These findings are interpreted as a polyclonal model of a thymus-dependent antibody response.

Original languageEnglish (US)
Pages (from-to)138-150
Number of pages13
JournalJournal of Experimental Medicine
Volume152
Issue number1
StatePublished - 1980
Externally publishedYes

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Immunoglobulins
B-Lymphocytes
Spleen
Antibody Formation
B-Cell Antigen Receptors
Immunoglobulin Fab Fragments
Concanavalin A
Thymus Gland
Lipopolysaccharides
Anti-Idiotypic Antibodies
Rabbits
T-Lymphocytes
Antibodies

ASJC Scopus subject areas

  • Immunology

Cite this

Activation of murine B lymphocytes by anti-immunoglobulin is an inductive signal leading to immunoglobulin secretion. / Parker, David; Wadsworth, D. C.; Schneider, G. B.

In: Journal of Experimental Medicine, Vol. 152, No. 1, 1980, p. 138-150.

Research output: Contribution to journalArticle

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