In vitro and in vivo metabolism of VP 16–213 in the rat
A high-performance liquid chromatographic procedure utilizing u.v. and radioactivity detection was employed to examine the metabolism of the epipodophyllotoxin derivative VP 16–213 by the rat in vivo and in liver extracts and subcellular fractions. VP 16–213 has been shown to be metabolized extensiv...
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Veröffentlicht in: | European journal of cancer & clinical oncology 1982-09, Vol.18 (9), p.885-890 |
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Sprache: | eng |
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Zusammenfassung: | A high-performance liquid chromatographic procedure utilizing u.v. and radioactivity detection was employed to examine the metabolism of the epipodophyllotoxin derivative VP
16–213 by the rat
in vivo and in liver extracts and subcellular fractions. VP
16–213 has been shown to be metabolized extensively by rat liver homogenates and rat liver microsomes, with the formation of one major metabolite. The metabolite formed
in vitro was the only metabolite present in plasma samples of rats treated with i.p. injections of VP
16–213. Based on its chromatographic and solubility characteristics, the metabolite is probably a cis- or
trans-hydroxy acid derivative. The liver is involved in the metabolism of VP
16–213, and the localization of the enzyme(s) responsible for the formation of the major metabolite is in the microsomal fraction. |
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ISSN: | 0277-5379 |
DOI: | 10.1016/0277-5379(82)90199-7 |