BCL9 and neoplasm: Among them, we were particularly interested in BCL9, because it promotes tumor progression by conferring enhanced metastatic and angiogenic properties to cancer cells.18 As indicated in Figure 5d, BCL9 was a putative target of miR-1301, and perfect base pairing was observed between the seed sequence of mature miR-1301 and the BCL9 3′-UTR.