title: Quantification of free polyamines and their metabolites in biofluids and liver tissue by UHPLC-MS/MS: application to identify the potential biomarkers of hepatocellular carcinoma.
abstract: Polyamines and their N-acetylated metabolites are potential biomarkers in the diagnosis and therapeutic evaluation of cancer. Thus, we present here an ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the simultaneous determination of 6 free, 3 monoacetylated, and 2 diacetylated polyamines without derivatization. The major improvement of this method is the use of 0.2 % perfluoroheptanoic acid methanol in the pretreatment step to achieve protein precipitation and 0.0125 % perfluoroheptanoic acid in the mobile phase to achieve analyte separation within 9 min. The established analytical method was validated with plasma, urine, and liver tissue and applied to determine plasma, urine, and liver tissue samples from healthy rats, hepatocellular carcinoma rats, and administrated rats successfully. Results indicated free polyamines such as putrescine mainly existed in liver tissue but more polar N-acetylated metabolites such as N (1),N (12)-diacetylspermine seemed to exist in biological fluid. After carcinogenesis, the levels of polyamines were increased, but the elevated levels of polyamines and their metabolites tended to decrease when administrated with anticancer drug. The method provided a more versatile manner for clinical application in the diagnosis and therapeutic evaluation of hepatocellular carcinoma.
authors.affiliation: School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Yu
authors.forename: Ran
authors.initials: R
authors.lastname: Liu
authors.forename: Chu
authors.initials: C
authors.lastname: Xie
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Yidi
authors.initials: Y
authors.lastname: Yin
authors.forename: Kaishun
authors.initials: K
authors.lastname: Bi
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
mesh_terms: D015415:Biomarkers / Q000378:metabolism*; D014408:Biomarkers, Tumor / Q000378:metabolism; D001826:Body Fluids / Q000378:metabolism; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D008099:Liver / Q000378:metabolism; D008113:Liver Neoplasms / Q000378:metabolism*; D013058:Mass Spectrometry / Q000379:methods*; D011073:Polyamines / Q000378:metabolism*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D015415:Biomarkers; D014408:Biomarkers, Tumor; D011073:Polyamines