A combined A431 cell membrane chromatography and online high performance liquid chromatography/mass spectrometry method for screening compounds from total alkaloid of Radix Caulophylli acting on the human EGFR.
We have developed an online analytical method that combines A431 cell membrane chromatography (A431/CMC) with high performance liquid chromatography and mass spectrometry (LC/MS) for identifying active components from Radix Caulophylli acting on human EGFR. Retention fractions on A431/CMC model were captured onto an enrichment column and the components were directly analyzed by combining a 10-port column switcher with an LC/MS system for separation and preliminary identification. Using Sorafenib tosylate as a positive control, taspine and caulophine from Radix Caulophylli were identified as the active molecules which could act on the EGFR. This A431/CMC-online-LC/MS method can be applied for screening active components acting on EGFR from traditional Chinese medicines exemplified by Radix Caulophylli and will be of great utility in drug discovery using natural medicinal herbs as a source of novel compounds.
Sun
Meng
M
Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, China.
Ren
Jing
J
Du
Hui
H
Zhang
Yanmin
Y
Zhang
Jie
J
Wang
Sicen
S
He
Langchong
L
D000470:Alkaloids / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology*; D028145:Caulophyllum / Q000737:chemistry*; D045744:Cell Line, Tumor; D002462:Cell Membrane / Q000737:chemistry / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D004353:Drug Evaluation, Preclinical / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D066246:ErbB Receptors / Q000819:agonists / Q000037:antagonists & inhibitors / Q000378:metabolism*; D005449:Fluorenes / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D006801:Humans; D006860:Hydrogen Bonding; D013058:Mass Spectrometry / Q000379:methods*; D018517:Plant Roots / Q000737:chemistry; D011485:Protein Binding
D000470:Alkaloids; D004365:Drugs, Chinese Herbal; D005449:Fluorenes; C554063:caulophine; D066246:ErbB Receptors; C018394:taspine