Screening and analysis of an antineoplastic compound in Rhizoma Chuanxiong by means of in vitro metabolism and HPLC-MS.
A new screening and analysis method that combines in vitro metabolism with high-performance liquid chromatography-mass spectrometry (HPLC-MS) was developed for the screening and analysis of an antineoplastic compound, coniferyl ferulate, which is present in the rhizome of Rhizoma Chuanxiong. Infrared (IR), ultraviolet visible spectroscopy (UV-Vis), nuclear magnetic resonance (NMR) and element analysis were used to identify the molecular structure of coniferyl ferulate. The quantitative analysis of coniferyl ferulate in different extracts of Rhizoma Chuanxiong was carried out, and the metabolism of coniferyl ferulate was investigated by in vitro incubation with rat liver homogenate. The metabolite of coniferyl ferulate, ferulic acid ethyl ester, was identified by HPLC-MS, UV-Vis and IR. In addition, antineoplastic activities of coniferyl ferulate and ferulic acid ethyl ester were detected by the MTT assay. The observed inhibition rate of coniferyl ferulate on the activity of HeLa cells was over 80% at 5.4 ng microl(-1). However, its metabolite, ferulic acid ethyl ester, showed no antineoplastic activity in vitro.
Kong
Liang
L
National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China. liangkong@dicp.ac.cn
Yu
Zhiyuan
Z
Bao
Yongming
Y
Su
Xingye
X
Zou
Hanfa
H
Li
Xin
X
D000972:Antineoplastic Agents, Phytogenic / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D002109:Caffeic Acids / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003373:Coumaric Acids / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D030004:Ligusticum; D013058:Mass Spectrometry / Q000379:methods*; D010936:Plant Extracts / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D027343:Rhizome / Q000737:chemistry*; D013997:Time Factors
D000972:Antineoplastic Agents, Phytogenic; D002109:Caffeic Acids; D003373:Coumaric Acids; D004365:Drugs, Chinese Herbal; D010936:Plant Extracts; C044571:coniferyl ferulate; C099085:ethyl ferulate; C101574:chuangxiong extract