Endometrial BCL6 Overexpression in Eutopic Endometrium of Women With Endometriosis.

Journal Article (Journal Article)

The objective of this study was to examine B-cell CLL/lymphoma 6 (BCL6) expression in human eutopic endometrium across the menstrual cycle in women with and without endometriosis and to establish a cutoff for future studies. This design was a series of case-control studies in tertiary University teaching hospitals. We examined BCL6 expression by messenger RNA and immunohistochemically in prospectively collected samples in both the proliferative (P) and the secretory phases. BCL6 is minimally increased in the mid-secretory phase of the menstrual cycle compared to the P phase in normal patients. BCL6 protein expression was significantly higher in the secretory phase of patients with endometriosis (n = 29) versus fertile controls without endometriosis at laparoscopy (n = 20; P < .0001). Normal fertile controls (n = 28) recruited for endometrial biopsy also had low levels of secretory phase BCL6 expression compared to women with unexplained infertility (UI; n = 119). A receiving-operator characteristic analysis of these data revealed an area under the curve of 94% (95% confidence interval 85%-100%; P < .0001) with an HSCORE cutoff of 1.4 to differentiate cases with and without endometriosis. Using this cutoff value, BCL6 was positive in 88% of cases with UI. Laparoscopic examination of a subset of 65 patients confirmed abnormalities in 98% of cases; 61 (93.8%) were found to have endometriosis, 3 (4.6%) with hydrosalpinx, and 1 (1.5%) with a normal pelvis. These data suggest that BCL6 is a promising candidate as a single diagnostic biomarker for detection of endometriosis in women with otherwise UI and may be associated with endometrial dysfunction, including progesterone resistance.

Full Text

Duke Authors

Cited Authors

  • Evans-Hoeker, E; Lessey, BA; Jeong, JW; Savaris, RF; Palomino, WA; Yuan, L; Schammel, DP; Young, SL

Published Date

  • September 2016

Published In

Volume / Issue

  • 23 / 9

Start / End Page

  • 1234 - 1241

PubMed ID

  • 27222232

Pubmed Central ID

  • PMC5933165

Electronic International Standard Serial Number (EISSN)

  • 1933-7205

Digital Object Identifier (DOI)

  • 10.1177/1933719116649711


  • eng

Conference Location

  • United States