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. 1990 Mar;58(3):726–731. doi: 10.1128/iai.58.3.726-731.1990

Enrichment of suppressor T cells by means of binding to monophosphoryl lipid A.

P J Baker 1, K R Haslov 1, M B Fauntleroy 1, P W Stashak 1, K Myers 1, J T Ulrich 1
PMCID: PMC258525  PMID: 1968433

Abstract

The binding and elution of spleen cells from plastic dishes coated with monophosphoryl lipid A (MPL) resulted in a greater than 1,000-fold enrichment of antigen-specific suppressor T-cell (TS) activity when spleen cells from mice 18 to 24 h after exposure to a low dose of type III pneumonococcal polysaccharide (SSS-III) were used. The removal of MPL-adherent TS cells resulted in an increase in the degree of amplifier T-cell (TA) activity present in the remaining MPL-nonadherent cell fraction; however, both TS and TA activities were found in the MPL-adherent cell fraction when spleen cells from mice 4 days after immunization with an optimal dose of SSS-III were examined. These findings, as well as others, suggest that both TS and TA, once activated, acquire a cell surface receptor that enables them to bind to MPL. Because of differences in the kinetics for the activation of TS and TA during the course of the antibody response and the fact that TS, but not TA, activity appears as early as 18 to 24 h after exposure to SSS-III, it is possible to use this experimental approach to obtain cell suspensions greatly enriched in TS activity.

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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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