Cat. No. 2684
Alternative Name: 7-Ethyl-10-hydroxycamptothecin
Chemical Name: (4S)-4,11-Diethyl-4,9-dihydroxy-1H-
Biological ActivityActive metabolite of CPT-11 (Cat. No. 2688) that inhibits DNA topoisomerase I (IC50 values are 0.74 and 1.9 μM in P388 and Ehrlich cells respectively). Inhibits DNA and RNA synthesis (IC50 values are 0.077 and 1.3 μM respectively) but does not affect protein synthesis. Displays potent antitumor activity against a range of human tumor cell lines (IC50 values are 3.3, 13, 19 and 22 nM for HCT-116, BEL-7402, HL60 and HELA cells respectively).
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
Certificate of Analysis / Safety Data Sheet
Koizumi et al (2006) Novel SN-38-incorporating ploymeric micelles, NK012, eradicate vascular endothelial growth factor-secreting bulky tumors. Cancer Res. 66 10048. PMID: 17047068.
Gao et al (2005) Synthesis and antitumor activity of the hexacyclic camptothecin derivatives. Bioorg.Med.Chem.Lett. 15 3233. PMID: 15913996.
Kawato et al (1991) Intracellular roles of SN-38, a metabolite of the camptothecin derivative CPT-11, in the antitumor effect of CPT-11. Cancer Res. 51 4187. PMID: 1651156.
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Citations are publications that use Tocris products. Selected citations for SN 38 include:
Jonchère et al (2015) Irinotecan treatment and senescence failure promote the emergence of more transformed and invasive cells that depend on anti-apoptotic Mcl-1. Oncotarget 6 409. PMID: 25565667.
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Keywords: SN 38, supplier, DNA, topoisomerase, I, inhibitors, inhibits, antitumor, Isomerases, SN38, chemotherapeutics, Tocris Bioscience, DNA Topoisomerase Inhibitor products