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NOVEL MICROBIAL METABOLITES OF THE PHOSLACTOMYCINS FAMILY INDUCE PRODUCTION OF COLONY-STIMULATING FACTORS BY BONE MARROW STROMAL CELLS: I. TAXONOMY, FERMENTATION AND BIOLOGICAL PROPERTIES
Three metabolites were isolated from the culture broth of an actinomycete strain identified as Streptomyces platensis SANK 60191, that induce the production of colony-stimulating factors (CSFs) by stromal cell line KM-102 at ED50 concentrations from 40 to 200ng/ml. The compounds induced quantities o...
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Published in: | Journal of antibiotics 1993/10/25, Vol.46(10), pp.1503-1511 |
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Main Authors: | , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Three metabolites were isolated from the culture broth of an actinomycete strain identified as Streptomyces platensis SANK 60191, that induce the production of colony-stimulating factors (CSFs) by stromal cell line KM-102 at ED50 concentrations from 40 to 200ng/ml. The compounds induced quantities of granulocyte CSF (G-CSF) and granulocyte-macrophage CSF (GM-CSF) comparable to those induced by interleukin-1, a strong CSF inducer. These metabolites were called leustroducsins (A, B and C) and were later found to be structurally related to phoslactomycins. This is the first report of CSF inducing activity by members of the phoslactomycin class. |
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ISSN: | 0021-8820 1881-1469 |
DOI: | 10.7164/antibiotics.46.1503 |