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. 1977 Jun;32(6):963–974.

Dextran sulphate: an adjuvant for cell-mediated immune responses.

R E McCarthy, L W Arnold, G F Babcock
PMCID: PMC1445458  PMID: 328389

Abstract

The effect of high mol. wt dextran sulphate (DS) on cell-mediated immune responses was studied. Three criteria were used to assess cell-mediated delayed-type hypersensitivity: footpad swelling, i.d. skin tests and macrophage migration inhibitory factor (MIF) production. Guinea-pigs sensitized with egg albumin (EA) and treated with DS showed strong positive delayed skin tests. Control animals given only EA showed negative skin tests. Lymphocytes from mice sensitized s.c. with EA and treated with DS showed an increase in MIF production. Delayed footpad swelling responses in mice sensitized s.c. with sheep red blood cells (SRBC) and treated with DS were increased when the mice were challenged 8 days after sensitization. Doses of DS which were effective in increasing delayed footpad swelling ranged from 50-200 mg DS/kg body weight. DS was only capable of increasing delayed footpad swelling responses when both SRBC and DS were injected s.c. at the same site. Intraperitoneal injection of both SRBC and DS obeebction of both s.c. but at different sites did not result in increased delayed footpad swelling. DS was capable of augmenting footpad swelling responses when given s.c. as much as 6 days before SRBC. The optimal time for administration of DS was 2 days before SRBC. Injection of DS 2 days or more after SRBC resulted in no increase in delayed footpad swelling responses. The results of this study indicate that dextran sulphate is a potent adjuvant for cell-mediated delayed-type hypersensitivity immune responses in both mice and guinea-pigs.

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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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