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Cytotoxic Indolocarbazoles From a Marine-Derived Streptomyces Sp. OUCMDZ-5380.

ABSTRACT: Under the guidance of global natural product social molecular networking, three new indolocarbazoles named streptocarbazoles F-H (1-3), along with staurosporine (4) were isolated from the marine-derived Streptomyces sp. OUCMDZ-5380. Structures of streptocarbazoles F-H were, respectively, determined as N-demethyl-N-hexanoylstaurosporine (1), N-demethyl-N-(2-methyl-3-methoxypyridin-4-yl) staurosporine staurosporine (2), and 4-(N-demethylstaurosporine-N-yl)-1,2-dimethyl-3-methoxypyridinium (3) by spectroscopic analysis and electronic circular dichroism comparison with staurosporine. Compared with staurosporine (4), streptocarbazoles F-H (1-3) showed a selective antiproliferation of the acute myeloid leukemia cell line MV4-11 with the IC₅₀ values of 0.81, 0.55, and 1.88 μM, respectively.

SUBMITTER: Cui T

PROVIDER: S-EPMC9315148 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Cytotoxic Indolocarbazoles From a Marine-Derived Streptomyces Sp. OUCMDZ-5380.

Cui Tongxu T Lin Simin S Wang Zizhen Z Fu Peng P Wang Cong C Zhu Weiming W

Frontiers in microbiology 20220712

Under the guidance of global natural product social molecular networking, three new indolocarbazoles named streptocarbazoles F-H (1-3), along with staurosporine (4) were isolated from the marine-derived Streptomyces sp. OUCMDZ-5380. Structures of streptocarbazoles F-H were, respectively, determined as N-demethyl-N-hexanoylstaurosporine (1), N-demethyl-N-(2-methyl-3-methoxypyridin-4-yl) staurosporine staurosporine (2), and 4-(< ...[more]

PMID: 35903465

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