Over-expression of diazepam binding inhibitor, acyl-CoA binding protein in human endometrial cancer.
Gynecologic cancers including cancers of the endometrium are a clinical problem (1-4). We mined published microarray data (5, 6) to discover genes associated with endometrial cancers by comparing transcriptomes of the normal endometrium and endometrial tumors from humans. We identified diazepam binding inhibitor, acyl-CoA binding protein, encoded by DBI, as among the most differentially expressed genes, transcriptome-wide, in cancers of the endometrium. DBI was expressed at significantly higher levels in endometrial tumor tissues as compared to the endometrium. Importantly, in human endometrial cancer, primary tumor expression of DBI was correlated with recurrence-free survival in black patients with low mutational burden. DBI may be a molecule of interest in understanding the etiology or progression of human endometrial cancer.