Results showed that the growth of three ovarian cancer cell lines were significantly decreased in response to MLK7-AS1 knockdown by si-MLK7-AS1, while it was increased in response to YAP1 overexpression; the inhibitory effects of si-MLK7-AS1 on SKOV3, OVCAR3, and PEO1 cell growth were partly restored by YAP1 overexpression (Fig. 5i; P < 0.01). This evidence concerns the gene PTGDR and ovarian carcinoma.