Over-expression of ADP ribosylation factor like GTPase 4C in human endometrial cancer.
Gynecologic cancers including cancers of the endometrium are a clinical problem (1-4). We mined published and public 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 ADP ribosylation factor like GTPase 4C, encoded by ARL4C, as among the most differentially expressed genes, transcriptome-wide, in cancers of the endometrium. ARL4C was expressed at significantly higher levels in endometrial tumor tissues as compared to the endometrium. Importantly, in human endometrial cancer, primary tumor expression of ARL4C was correlated with recurrence-free survival in white patients with high mutational burden. ARL4C may be a molecule of interest in understanding the etiology or progression of human endometrial cancer.