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2017 ; 17
(1
): 472
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MALDI-TOF-MS analysis in discovery and identification of serum proteomic patterns
of ovarian cancer
#MMPMID28683725
Swiatly A
; Horala A
; Hajduk J
; Matysiak J
; Nowak-Markwitz E
; Kokot ZJ
BMC Cancer
2017[Jul]; 17
(1
): 472
PMID28683725
show ga
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.