Background
An anti-tumor agent that is commonly used as an apoptosis inducer, etoposide (VP-16) is a topoisomerase II inhibitor with an IC50 of 59.2 µM (1). Etoposide stabilizes a covalent topoisomerase II-cleaved DNA intermediate complex in the catalytic cycle of the enzyme, leading to genomic instability and cell death (2,3). This mechanism of action has been shown to delay progression of the cell cycle through the late S and early G2 phase (4,5).
Molecular Formula
C29H32O13
Molecular Weight
588.56 g/mol
Purity
>98%
CAS
33419-42-0
Solubility
Soluble in DMSO at 25mg/ml.
Storage
Directions for Use
Etoposide is supplied as a lyophilized powder. For a 50 mM stock, reconstitute the 5.9 mg in 200 µl DMSO. Working concentrations and length of treatments vary depending on the desired effect, but it is typically used at 5-50 µM for 4-24 hr. Soluble in DMSO at 25 mg/ml; very poorly soluble in ethanol and water with maximum solubility in water ~20-50 µM.
Wear personal protective equipment. Do not handle until all safety precautions have been read and understood.
Safety Information: Etoposide has been classified by the International Agency for Research on Cancer (IARC) as a known human carcinogen (Group 1). It may cause adverse reproductive effects - such as birth defect, miscarriages, or infertility. Avoid contact during pregnancy and while nursing. If exposed or concerned, get medical advice. See Safety Data Sheet (SDS).
Background References
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
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