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Título

MALDI-TOF analysis of blood serum proteome can predict the presence of monoclonal gammopathy of undetermined significance

AutorBarceló, Francisca; Gomila, Rosa Maria; De Paúl, Iván; Gili, Xavier; Segura, Jaunie A.; Pérez-Montaña, Albert; Jiménez-Marco, Teresa; Sampol, Antònia; Portugal, José CSIC ORCID
Palabras claveProteomics
Protein peaks
Spectrometry
Matrix-Assisted Laser Desorption-Ionization
Fecha de publicaciónago-2018
EditorPublic Library of Science
CitaciónPLoS ONE 13 (8): e0201793 (2018)
ResumenMonoclonal gammopathy of undetermined significance (MGUS) is a plasma cell dyscrasia that can progress to malignant multiple myeloma (MM). Specific molecular biomarkers to classify the MGUS status and discriminate the initial asymptomatic phase of MM have not been identified. We examined the serum peptidome profile of MGUS patients and healthy volunteers using MALDI-TOF mass spectrometry and developed a predictive model for classifying serum samples. The predictive model was built using a support vector machine (SVM) supervised learning method tuned by applying a 20-fold cross-validation scheme. Predicting class labels in a blinded test set containing randomly selected MGUS and healthy control serum samples validated the model. The generalization performance of the predictive model was evaluated by a double cross-validation method that showed 88% average model accuracy, 89% average sensitivity and 86% average specificity. Our model, which classifies unknown serum samples as belonging to either MGUS patients or healthy individuals, can be applied to clinical diagnosis. © 2018 Barceló et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Versión del editorhttps://doi.org/10.1371/journal.pone.0201793
URIhttp://hdl.handle.net/10261/173826
DOI10.1371/journal.pone.0201793
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