WEE1 and cancer: Mechanistically, lncUCA1 functioned as a sponge for miR-103a, a miRNA with antitumoral function in various human cancers, this sequestration of miR-103a by lncUCA1 promoted the expression of WEE1 G2 checkpoint kinase (WEE1), a direct target of miR-103a, enhancing tumor growth and cisplatin resistance in a BALB/c nude xenograft model (Gao et al., 2021).