Likewise, mRNA, lncRNA, and circRNA transcriptomics and relevant bioinformatic analysis in CD44+/BCMab1+ CSCs isolated from human bladder cancer specimens identified CircRNA_103809 as an important regulator of CSC features, while the functional analysis of the lncRNAs-mRNAs and circRNAs-mRNAs co-expression networks uncovered key transcripts of potential prognostic significance in bladder cancer [100]. Here, CD44 is linked to urinary bladder cancer.