Differential expression of transient receptor potential cation channel subfamily C member 4 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 transient receptor potential cation channel subfamily C member 4, encoded by TRPC4, as among the most differentially expressed genes, transcriptome-wide, in cancers of the endometrium. TRPC4 was expressed at significantly lower levels in endometrial tumor tissues as compared to the endometrium. Importantly, in human endometrial cancer, primary tumor expression of TRPC4 was correlated with overall survival in black patients with low mutational burden. TRPC4 may be a molecule of interest in understanding the etiology or progression of human endometrial cancer.