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A new immunomodulator, FR-900494: taxonomy, fermentation, isolation, and physico-chemical and biological

M Iwami, O Nakayama, H Terano

The Journal of Antibiotics

|May 1, 1987

Abstract:

FR-900494 is a new type of immunoactive substances produced by an actinomycete named Kitasatosporia kifunense sp. nov. FR-900494 exhibits a competitive action against immunosuppressive factor produced in the serum of tumor bearing mice and has the capacity to restore the depression of lymphocytes.

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