At last the genes which belong to both DEGs and hub genes are seen as the target genes which highly related to ovarian cancer, and finally 34 genes were selected (ADH1B, BARX1, C7, CADPS, CCL21, CFAP100, CFAP65, COL11A1, COL1A1, COL2A1, COL5A1, COL8A1, COMP, CXCL14, ECEL1, EFCAB1, FMO2, FNDC1, INHBA, LRRC15, NKAIN4, OMD, PLCB1, PLCXD3, SERPINE1, SFRP2, SFRP4, SNTN, SORCS2, SVEP1, THBS2, THBS4, TUBA4B, VCAN). This evidence concerns the gene ECEL1 and ovarian cancer.