Xu J, Zhang X, Huang F, Li G, Leadlay PF. Efophylins A and B, Two
C2-Asymmetric Macrodiolide Immunosuppressants from
Streptomyces malaysiensis.
JOURNAL OF NATURAL PRODUCTS 2021;
84:1579-1586. [PMID:
33973788 DOI:
10.1021/acs.jnatprod.1c00118]
[Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Genomics-inspired isolation led to the identification of two new natural congeneric C2-asymmetric macrodiolide immunosuppressants, named efophylins A (1) and B (2), from Streptomyces malaysiensis DSM 4137. Their structures were elucidated by spectroscopic and computational methods and were in agreement with biosynthetic predictions from the efophylin gene cluster. Compound 2 exhibited potent immunosuppressive activity and demonstrated to inhibit the activation of the NFAT and block NFAT dephosphorylation in vitro. The immunosuppressive activity of compound 2 is possibly at least in part via the CaN/NFAT signaling pathway.
Collapse