GJA1 and prostate cancer: One module includes nine genes (EIF2AK2, GULP1, CAP2, GJA1, SEMA3A, KRT34, SERPINB7, BBC3, KLK10, p = 0.001) that were up-regulated in PC3 cells (prostate cancer) after knockdown of EZH2 by RNAi [16].