Author/Editor     Kocbek, Vida; Bersinger, Nick A.; Brglez, Vesna; Mueller, Michael D.; Petan, Toni; Lanišnik-Rižner, Tea
Title     Phospholipase A2 group IIA is elevated in endometriomas but not in peritoneal fluid and serum of ovarian endometriosis patients
Type     članek
Publication year     2014
ISSN     0951-3590 - Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology
Language     eng
Abstract     Our previous gene expression analysis identified phospholipase A2 group IIA (PLA2G2A) as a potential biomarker of ovarian endometriosis. The aim of this study was to evaluate PLA2G2A mRNA and protein levels in tissue samples (endometriomas and normal endometrium) and in serum and peritoneal fluid of ovarian endometriosis patients and control women. One-hundred and sixteen women were included in this study: the case group included 70 ovarian endometriosis patients, and the control group included 38 healthy women and 8 patients with benign ovarian cysts. We observed 41.6-fold greater PLA2G2A mRNA levels in endometrioma tissue, compared to normal endometrium tissue. Using Western blotting, PLA2G2A was detected in all samples of endometriomas, but not in normal endometrium, and immunohistochemistry showed PLA2G2A-specific staining in epithelial cells of endometrioma paraffin sections. However, there were no significant differences in PLA2G2A levels between cases and controls according to ELISA of peritoneal fluid (6.0 % 4.4 ng/ml, 6.6 % 4.3 ng/ml; p%0.5240) and serum (2.9 % 2.1 ng/ml, 3.1 % 2.2 ng/ml; p%0.7989). Our data indicate that PLA2G2A is implicated in the pathophysiology of ovarian endometriosis, but that it cannot be used as a diagnostic biomarker.
Keywords     inflammation
biomarker
ovarian endometriosis
vnetje
biomarker
endometrioza jajčnikov