Over-expression of oxysterol binding protein like 3 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 oxysterol binding protein like 3, encoded by OSBPL3, as among the most differentially expressed genes, transcriptome-wide, in cancers of the endometrium. OSBPL3 was expressed at significantly higher levels in endometrial tumor tissues as compared to the endometrium. Importantly, in human endometrial cancer, primary tumor expression of OSBPL3 was correlated with recurrence-free survival in black patients with low mutational burden. OSBPL3 may be a molecule of interest in understanding the etiology or progression of human endometrial cancer.