In an analysis of differentially expressed profiles of lncRNAs and mRNA in ceRNA networks during transformation of diffuse large B cell lymphoma (DLBCL), Tian et al. [164] identified HCP5 as a key regulator interacting with many miRNA and protein coding genes associated with transcription (KLF2), cell adhesion and proliferation (CD47), lipid metabolism (BTN3A1), and the adaptive immune response (TAP1, PSMB9). This evidence concerns the gene PSMB9 and diffuse large B-cell lymphoma.