The immuno-pharmacological profile of a novel immunosuppressive agent, FK-506 produced by a streptomycete, is presented here. We proceeded to test the effect of the agent on various in vitro immune systems. It showed that mixed lymphocyte reaction, cytotoxic T cell generation, the production of T cell-derived soluble mediators such as interleukin 2 (IL-2), interleukin 3 and gamma-interferon and the expression of the IL-2 receptor were suppressed by this agent. The IC50 values of FK-506 and ciclosporin (CS) in all tests were approximately 0.1 nM and 10 nM, respectively. Therefore, the novel agent, FK-506 suppressed in vitro immune systems at about hundred times lower concentration than CS. © 1987, JAPAN ANTIBIOTICS RESEARCH ASSOCIATION. All rights reserved.
CITATION STYLE
Kino, T., Hatanaka, H., Miyata, S., Inamura, N., Nishiyama, M., Yajima, T., … Ochiai, T. (1987). Fk-506, A Novel Immunosuppressant Isolated From A Streptomyces Ii. Immunosuppressive Effect Of Fk-506 In Vitro. The Journal of Antibiotics, 40(9), 1256–1265. https://doi.org/10.7164/antibiotics.40.1256
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