CDKN1A and neoplasm: LncRNA PANDA, which is activated by the interaction between p53 and cyclin-dependent kinase inhibitor 1A (CDKN1A, p21) in the presence of DNA damage, prevents the expression of apoptosis-related genes by interacting with the nuclear transcription factor Y subunit α (NF-YA) to prolong the survival time of tumor cells (30).