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. 1976 Nov;26(2):346–354.

Comparative study of cyclophosphamide, 6-mercaptopurine, azathiopurine and methotrexate. Relative effects on the humoral and the cellular immune response in the mouse.

I G Otterness, Y H Chang
PMCID: PMC1540853  PMID: 991462

Abstract

The effects of cyclophosphamide, methotrexate, azathioprine and 6-mercaptopurine on the concomitant development of the humoral and the cellular immune responses of mice to a single antigen, the El4 tumour cell, were investigated. The measurements of cellular and humoral immunity were carried out in the same animal using lymphocyte and antibody mediated lysis of the El4 cell, a measurement system independent of underlying anti-inflammatory effects. A regimen of daily cyclophosphamide had a more pronounced suppressive effect on the humoral response than on the cellular response, in agreement with other investigators. A single low dose of cyclophosphamide stimulated the cellular response and suppressed the humoral response. Single or multiple high doses of cyclophosphamide maximally suppressed both the cellular and humoral response. Azathioprine and 6-mercaptopurine, in contrast to the results of other investigations, caused equivalent inhibition of both the humoral and cellular responses and thus lacked selectivity. Methotrexate also provided equivalent inhibition of both the humoral and cellular responses at all dose levels investigated.

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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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