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Metabolomic and elemental profiling of blood serum in bladder cancer

Journal of pharmaceutical Analysis 2022年第6期12卷 889-900页

作者： Krzysztof Ossolinski Tomasz Ruman Valerie Copie brian p.tripet Leonardo B.Nogueira Katiane O.p.C.Nogueira Artur Kołodziej Aneta płaza-Altamer Anna Ossolinska Tadeusz Ossolinski Joanna Nizioł Department of Urology John Paul II Hospital36-100KolbuszowaPoland Rzeszow University of Technology Faculty of Chemistry35-959RzeszowPoland The Department of Chemistry and Biochemistry Montana State UniversityBozemanMT59717USA Department of Geology Federal University of Ouro Preto35400-000Ouro PretoBrazil Department of Biological Sciences Federal University of Ouro Preto35400-000Ouro PretoBrazil Doctoral School of Engineering and Technical Sciences at the Rzeszow University of Technology 35-959RzeszowPoland

Bladder cancer(BC)is one of the most frequently diagnosed types of urinary cancer.Despite advances in treatment methods,no specific biomarkers are currently in use.Targeted and untargeted profiling of metabolites and elements of human blood serum from 100 BC patients and the same number of normal controls(NCs),with external validation,was attempted using three analytical methods,i.e.,nuclear magnetic resonance,gold and silver-109 nanoparticle-based laser desorption/ionization mass spectrometry(LDI-MS),and inductively coupled plasma optical emission spectrometry(ICp-OES).All results were subjected to multivariate statistical analysis.Four potential serum biomarkers of BC,namely,isobutyrate,pyroglutamate,choline,and acetate,were quantified with proton nuclear magnetic resonance,which had excellent predictive ability as judged by the area under the curve(AUC)value of 0.999.Two elements,Li and Fe,were also found to distinguish between cancer and control samples,as judged from ICp-OES data and AUC of 0.807(in validation set).Twenty-five putatively identified compounds,mostly related to glycans and lipids,differentiated BC from NCs,as detected using LDI-MS.Five serum metabolites were found to discriminate between tumor grades and nine metabolites between tumor stages.The results from three different analytical platforms demonstrate that the identified distinct serum metabolites and metal elements have potential to be used for noninvasive detection,staging,and grading of BC.

关键词： Bladder cancer Biomarkers Human serum Metallomics Metabolomics

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