Amphirionin‑4 with Potent Proliferation-Promoting
Activity on Bone Marrow Stromal Cells from a Marine Dinoflagellate <i>Amphidinium</i> Species
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Abstract
A linear
polyketide, amphirionin-4 (<b>1</b>), has been isolated
from cultivated algal cells of the marine dinoflagellate <i>Amphidinium</i> species. The structure was elucidated on the basis of detailed analyses
of 1D and 2D NMR data, and the absolute configurations of C-4 and
C-8 were determined using the modified Mosher’s method. Amphirionin-4
(<b>1</b>) exhibited extremely potent proliferation-promoting
activity on murine bone marrow stromal ST-2 cells (950% promotion)
at a concentration of 0.1 ng/mL