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. 1973 Jul 1;138(1):312–317. doi: 10.1084/jem.138.1.312

INDUCTION OF B CELL TOLERANCE IN VITRO TO 2,4-DINITROPHENYL COUPLED TO A COPOLYMER OF D-GLUTAMIC ACID AND D-LYSINE (DNP-D-GL)

G J V Nossal 1, Beverley L Pike 1, David H Katz 1
PMCID: PMC2180530  PMID: 4577621

Abstract

Spleen cells from CBA or congenitally athymic ("nude") mice were pretreated with various concentrations of DNP coupled to a copolymer of D-glutamic acid and D-lysine (DNP37-D-GL), under various conditions of time and temperature. After washing, they were then cultured for 3 days with the direct B cell immunogen, DNP coupled to Salmonella adelaide flagella (DNP-FLA). Under all circumstances tried, exposure of cells to 1 µg/ml DNP-D-GL caused a 70–100% depression in the subsequent DNP-specific PFC response, and 100 ng/ml caused a lesser but still substantial effect. At the concentrations used, DNP-D-GL did not affect irrelevant antibody responses. Though cells from nude mice responded somewhat less well to DNP-FLA than those from CBA mice, no significant difference in the reaction of the two populations to the tolerogen was noted. This demonstrates that DNP-D-GL can, as previously suspected, directly cause unresponsiveness in B lymphocytes.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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