Uyeda M, Mizukami M, Yokomizo K, Suzuki K
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Biosci Biotechnol Biochem. 2001 May;65(5):1252-4. doi: 10.1271/bbb.65.1252.
Immunosuppressants isolated from Streptomyces filipinensis and S. hygroscopicus were identified with pentalenolactone I and hygromycin A, respectively. The compounds as well as cyclosporin A showed immunosuppressant activity in the mixed lymphocyte reaction, and pentalenolactone I and cyclosporin A suppressed IL-2 production, however, hygromycin A did not. Hygromycin A may have immunosuppressant activity by a different mechanism from pentalenolactone I, cyclosporin A and tacrolimus.