Evidence suggests that the lncRNA maternally expressed gene 3 (MEG3) is downregulated in PCa tissues and cells, and overexpression of MEG3 can attenuate the abilities of PCa cell proliferation, migration, and invasion by regulating the miR-9-5p/QKI-5 axis (Wu et al., 2019). Here, MEG3 is linked to posterior cortical atrophy.