Investigating the clinical potential for 14-3-3 zeta protein to serve as a biomarker for epithelial ovarian cancer.

Abstract:

OBJECTIVE:Recently, 14-3-3 zeta protein was identified as a potential serum biomarker of epithelial ovarian cancer (EOC). The goal of this study was to investigate the clinical potential of 14-3-3 zeta protein for monitoring EOC progression compared with CA-125 and HE4. DESIGN:Prospective follow-up study. SETTING:University of Pecs Medical Center Department of Obstetrics and Gynecology/Oncology (Pecs, Hungary). POPULATION:Thirteen EOC patients with advanced stage (FIGO IIb-IIIc) epithelial ovarian cancer that underwent radical surgery and received six consecutive cycles of first line chemotherapy (paclitaxel, carboplatin) in 21-day intervals. METHODS:Pre- and post-chemotherapy computed tomography (CT) scans were performed. Serum levels of CA-125, HE4, and 14-3-3 zeta protein were detected by enzyme-linked immunosorbent assay (ELISA) and quantitative electrochemiluminescence assay (ECLIA). MAIN OUTCOME MEASURES:Serum levels of CA-125, HE4, and 14-3-3 zeta protein, as well as lesion size according to pre- and post-chemotherapy CT scans. RESULTS:Serum levels of CA-125 and HE4 were found to significantly decrease following chemotherapy, and this was consistent with the decrease in lesion size detected post-chemotherapy. In contrast, 14-3-3 zeta protein levels did not significantly differ in healthy postmenopausal patients versus EOC patients. CONCLUSIONS:Determination of CA-125 and HE4 serum levels for the determination of the risk of ovarian malignancy algorithm (ROMA) represents a useful tool for the prediction of chemotherapy efficacy for EOC patients. However, levels of 14-3-3 zeta protein were not found to vary significantly as a consequence of treatment. Therefore we question if 14-3-3 zeta protein is a reliable biomarker, which correlates with the clinical behavior of EOC.

journal_name

J Ovarian Res

authors

Hatzipetros I,Gocze P,Koszegi T,Jaray A,Szereday L,Polgar B,Farkas N,Farkas B

doi

10.1186/1757-2215-6-79

subject

Has Abstract

pub_date

2013-11-15 00:00:00

pages

79

issue

1

issn

1757-2215

pii

1757-2215-6-79

journal_volume

6

pub_type

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