DGCR5 and cancer: Both tumor-promoting and -suppressing effects of DGCR5 are reported in different types of cancers (Huang et al., 2016; Chen et al., 2017; Dong et al., 2018; Luo et al., 2018; Wang R. et al., 2018; Wang Y.G. et al., 2018; Fang et al., 2019; Liu et al., 2019; Tang and Shan, 2019; Tang et al., 2019; Xu et al., 2019) or even in the identical types of cancer (Chen et al., 2017; Dong et al., 2018; Luo et al., 2018; Wang R. et al., 2018).