Quantitative determination of decursin, decursinol angelate, and decursinol in mouse plasma and tumor tissue using liquid-liquid extraction and HPLC

Li Li, Jinhui Zhang, Ahmad Ali Shaik, Yong Zhang, Lei Wang, Chengguo Xing, Sung Hoon Kim, Junxuan Lü

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The pyranocoumarin compound decursin and its isomer decursinol angelate (DA) are the major hydrophobic phytochemicals in the root of Angelica gigas Nakai (AGN, Korean Angelica), a major traditional medicinal herb. The ethanol extract of AGN and especially the purified decursin and DA have been shown to exhibit antitumor activities by our collaborative team and others. Although decursinol has been identified as a major hydrolysis metabolite of decursin and DA in vivo in previous pharmacokinetic studies with mouse and rat, other recently published results sharply disputed this conclusion. In this study, we set up a practical method for the concurrent analysis of decursin, DA, and decursinol in mouse plasma and tumor tissues by liquidliquid extraction and HPLC-UV and applied the method to several animal experiments. Plasma or tumor homogenate was extracted directly with ethyl acetate. The extraction efficiency for decursin/DA (quantitated together) and decursinol was between 8295% in both mouse plasma and tumor homogenate. The lower limit of quantitation (LLOQ) was approximately 0.25μg/mL for decursin/DA and 0.2μg/mL for decursinol in mouse plasma. In a pilot pharmacokinetic study, male C57BL/6 mice were given a single dose of 4.8mg decursin/DA mixture (240mg/kg) per mouse either by oral gavage or intraperitoneal injection. Maximum plasma concentrations for decursin/DA and decursinol were 11.2 and 79.7μg/mL, respectively, when decursin/DA was administered via intraperitoneal injection, and 0.54 and 14.9μg/mL via oral gavage. Decursin/DA and decursinol contents in the tumor tissues from nude mouse xenografts correlated very well with those in plasma. Overall, our results confirm the conclusion that the majority of decursin/DA hydrolyze to decursinol in rodent models with a tiny fraction remaining as the intact compounds administered.

Original languageEnglish (US)
Pages (from-to)252-259
Number of pages8
JournalPlanta Medica
Volume78
Issue number3
DOIs
StatePublished - Jan 1 2012

Fingerprint

Liquid-Liquid Extraction
Tumors
High Pressure Liquid Chromatography
Tissue
Plasmas
Liquids
Neoplasms
decursin
Angelica
Pharmacokinetics
Intraperitoneal Injections

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry

Cite this

Li, Li ; Zhang, Jinhui ; Shaik, Ahmad Ali ; Zhang, Yong ; Wang, Lei ; Xing, Chengguo ; Kim, Sung Hoon ; Lü, Junxuan. / Quantitative determination of decursin, decursinol angelate, and decursinol in mouse plasma and tumor tissue using liquid-liquid extraction and HPLC. In: Planta Medica. 2012 ; Vol. 78, No. 3. pp. 252-259.
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abstract = "The pyranocoumarin compound decursin and its isomer decursinol angelate (DA) are the major hydrophobic phytochemicals in the root of Angelica gigas Nakai (AGN, Korean Angelica), a major traditional medicinal herb. The ethanol extract of AGN and especially the purified decursin and DA have been shown to exhibit antitumor activities by our collaborative team and others. Although decursinol has been identified as a major hydrolysis metabolite of decursin and DA in vivo in previous pharmacokinetic studies with mouse and rat, other recently published results sharply disputed this conclusion. In this study, we set up a practical method for the concurrent analysis of decursin, DA, and decursinol in mouse plasma and tumor tissues by liquidliquid extraction and HPLC-UV and applied the method to several animal experiments. Plasma or tumor homogenate was extracted directly with ethyl acetate. The extraction efficiency for decursin/DA (quantitated together) and decursinol was between 8295{\%} in both mouse plasma and tumor homogenate. The lower limit of quantitation (LLOQ) was approximately 0.25μg/mL for decursin/DA and 0.2μg/mL for decursinol in mouse plasma. In a pilot pharmacokinetic study, male C57BL/6 mice were given a single dose of 4.8mg decursin/DA mixture (240mg/kg) per mouse either by oral gavage or intraperitoneal injection. Maximum plasma concentrations for decursin/DA and decursinol were 11.2 and 79.7μg/mL, respectively, when decursin/DA was administered via intraperitoneal injection, and 0.54 and 14.9μg/mL via oral gavage. Decursin/DA and decursinol contents in the tumor tissues from nude mouse xenografts correlated very well with those in plasma. Overall, our results confirm the conclusion that the majority of decursin/DA hydrolyze to decursinol in rodent models with a tiny fraction remaining as the intact compounds administered.",
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Quantitative determination of decursin, decursinol angelate, and decursinol in mouse plasma and tumor tissue using liquid-liquid extraction and HPLC. / Li, Li; Zhang, Jinhui; Shaik, Ahmad Ali; Zhang, Yong; Wang, Lei; Xing, Chengguo; Kim, Sung Hoon; Lü, Junxuan.

In: Planta Medica, Vol. 78, No. 3, 01.01.2012, p. 252-259.

Research output: Contribution to journalArticle

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AU - Li, Li

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