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Published in: BMC Cancer 1/2017

Open Access 01-12-2017 | Research article

MALDI-TOF-MS analysis in discovery and identification of serum proteomic patterns of ovarian cancer

Authors: Agata Swiatly, Agnieszka Horala, Joanna Hajduk, Jan Matysiak, Ewa Nowak-Markwitz, Zenon J. Kokot

Published in: BMC Cancer | Issue 1/2017

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Abstract

Background

Due to high mortality and lack of efficient screening, new tools for ovarian cancer (OC) diagnosis are urgently needed. To broaden the knowledge on the pathological processes that occur during ovarian cancer tumorigenesis, protein-peptide profiling was proposed.

Methods

Serum proteomic patterns in samples from OC patients were obtained using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF). Eighty nine serum samples (44 ovarian cancer and 45 healthy controls) were pretreated using solid-phase extraction method. Next, a classification model with the most discriminative factors was identified using chemometric algorithms. Finally, the results were verified by external validation on an independent test set of samples.

Results

Main outcome of this study was an identification of potential OC biomarkers by applying liquid chromatography coupled with tandem mass spectrometry. Application of this novel strategy enabled the identification of four potential OC serum biomarkers (complement C3, kininogen-1, inter-alpha-trypsin inhibitor heavy chain H4, and transthyretin). The role of these proteins was discussed in relation to OC pathomechanism.

Conclusions

The study results may contribute to the development of clinically useful multi-component diagnostic tools in OC. In addition, identifying a novel panel of discriminative proteins could provide a new insight into complex signaling and functional networks associated with this multifactorial disease.
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Metadata
Title
MALDI-TOF-MS analysis in discovery and identification of serum proteomic patterns of ovarian cancer
Authors
Agata Swiatly
Agnieszka Horala
Joanna Hajduk
Jan Matysiak
Ewa Nowak-Markwitz
Zenon J. Kokot
Publication date
01-12-2017
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2017
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-017-3467-2

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