Abstract:
:This report details a search for alternative strains that produce the diterpenoid sphaeropsidin A (SphA) among A. candidus strains from the USDA Northern Regional Research Laboratories Culture Collection. We identified two strains that produced SphA using a limited set of test media. An initial scaled-up fermentation of NRRL 313 and isolation effort led to the procurement of sufficient quantities of SphA to prepare five semi-synthetic analogues (1-5) and evaluate their anticancer effects against glioblastoma cells D423 and Gli56 grown in 2D and 3D cultures. Although, the effectiveness of the synthetic analogues varied depending on the cell line and the type of cell culture, compound 5, bearing an aromatic ring at C16, displayed a stronger toxicity towards both D423 and Gli56 cell lines in 2D cultures and D423 spheroids in 3D culture than either SphA or compounds 1-4.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Li Y,Scott R,Hooper AR,Bartholomeusz GA,Kornienko A,Bills GFdoi
10.1016/j.bmcl.2017.11.001subject
Has Abstractpub_date
2017-12-15 00:00:00pages
5436-5440issue
24eissn
0960-894Xissn
1464-3405pii
S0960-894X(17)31077-6journal_volume
27pub_type
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