Celastramycin A is a bioactive compound isolated from endophytic bacteria living in plants of the Celastraceae family. This benzoyl pyrrole inhibits the growth of bacteria and mycobacteria, with a minimal inhibitory concentration as low as 0.05 μg/ml. Celastramycin A also suppresses the production of interleukin-8 in human umbilical vein endothelial cells as stimulated by tumor necrosis factor-α (IC50 = 0.01 μg/ml).
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