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Background Transfer factors are small proteins that “transfer” the ability to express cell-mediated immunity from immune donors to non-immune recipients. We developed a process for purifying specific transfer factors to apparent homogeneity. This allowed us to separate individual transfer factors from mixtures containing several transfer factors and to demonstrate the antigen-specificity of transfer...
Transfer factors are protein immunomodulators that transfer the ability to express cell-mediated immunity from immunized donors to nonimmune recipients. The effects are antigen-specific. The experiments described in this report are a comparison of the relationship of the route of administration of various transfer factors to the magnitude of the delayed hypersensitivity responses (footpad swelling)...
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