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. 1981 Nov;34(2):315–322. doi: 10.1128/iai.34.2.315-322.1981

Evidence for two distinct populations of suppressor cells in the spleens of Mycobacterium bovis BCG-Sensitized mice.

R Turcotte
PMCID: PMC350866  PMID: 6458564

Abstract

Spleen cells from female C57BL/6 mice infected intravenously with 1 mg (about 10(7) viable units) of bacillus Calmette-Guérin (BCG) were shown to suppress the blastogenic responses induced by the T-cell mitogens phytohemagglutinin and concanavalin A and by the B-cell mitogen lipopolysaccharide in spleen cells from normal syngeneic mice. By using various separation procedures or cellular treatments, evidence was found for two distinct populations of splenic suppressor cells. One population belonged to the monocyte-macrophage lineage on the basis of their adherence to plastic surfaces, their removal after treatment with carbonyl iron, and their resistance to gamma irradiation. The other population of suppressor cells belonged to the T lymphocytes due to their sensitivity to an anti-Thy 1 antiserum and complement and to gamma irradiation. After separation on nylon wool columns, inhibitory activity was found in both the nonadherent and the adherent spleen cell populations. Both populations of suppressor cells were present in the spleens 14 days after BCG inoculation and persisted for at least 40 days after infection.

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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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