DLEU1 and ovarian carcinoma: One of the interesting cross‐regulatory mechanisms between lncRNAs and miRNAs is the function of a competing endogenous RNA or a molecular sponge.22 For instance, Wang et al. have found that DLEU1 contributes to ovarian carcinoma tumourigenesis and progression by interacting with miR‐490‐3p and altering CDK1 expression.