生物活性 |
Nanaomycin A is a quinone bacterial metabolite originally isolated from Streptomyces that has antimicrobial activity.1 It inhibits the growth of a variety of bacteria (MICs = <0.01-1.56 µg/ml), fungi (MICs = 0.4-3.12 µg/ml), and plant pathogenic fungi (MICs = 0.4-12.5 µg/ml), as well as P. falciparum (IC80 = 0.033 µM).1,2 Nanaomycin A is a selective DNA methyltransferase 3B (DNMT3B) inhibitor that inhibits proliferation of HCT116, A549, and HL-60 cancer cells (IC50s = 0.4, 4.1, and 0.8 µM, respectively).3 Nanaomycin A promotes the differentiation of human induced pluripotent stem (iPS) cells into hepatoblasts at the definitive endoderm cell-to-hepatoblast stage, but not the iPS cell-to-definitive endoderm cell stage, when used at a concentration of 1 µM.
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体外研究(In Vitro) |
Nanaomycin A (10-10000 nM; 72 hours) has a distinct cytotoxic effect in all three cell lines.
Nanaomycin A (0.5, 5 μM; 72 hours) reveals induction of RASSF1A protein expression in A549 cells.
Nanaomycin A (5 μM; 72 hours) has an 18-fold relative induction.
Nanaomycin A not affects the enzymatic activity of DNMT1.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Cytotoxicity Assay
Cell Line: |
HCT116 (colon), A549 (lung), and HL60 (bone marrow) human tumor cell lines
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Concentration: |
10, 100, 1000, 10000 nM |
Incubation Time: |
72 hours |
Result: |
Had a distinct cytotoxic effect in all three cell lines. |
Western Blot Analysis
Cell Line: |
A549 cells
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Concentration: |
0.5, 5 μM |
Incubation Time: |
72 hours |
Result: |
Revealed induction of RASSF1A protein expression. |
RT-PCR
Cell Line: |
A549 cells
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Concentration: |
5 μM |
Incubation Time: |
72 hours |
Result: |
Had an 18-fold relative induction. |
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参考文献 |
1. Iwai, Y., Kimura, K., Takahashi, Y., et al. OM-173, new nanaomycin-type antibiotics produced by a strain of Streptomyces. Taxonomy, production, isolation and biological properties. J. Antibiot. (Tokyo) 36(10), 1268-1274 (1983).
2. Tanaka, T., Kamei, K., Otoguro, K., et al. Heme-dependent radical generation: Possible involvement in antimalarial action of non-peroxide microbial metabolites, nanaomycin A and radicicol. J. Antibiot. (Tokyo) 52(10), 880-888 (1999).
3. Kuck, D., Caulfield, T., Lyko, F., et al. Nanaomycin A selectively inhibits DNMT3B and reactivates silenced tumor suppressor genes in human cancer cells. Mol. Cancer Ther. 9(11), 3015-3023 (2010).
4. Nakamae, S., Toba, Y., Takayama, K., et al. Nanaomycin A treatment promotes hepatoblast differentiation from human induced pluripotent stem cells. Stem Cells Dev. 27(6), 405-414 (2018).
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