To assess the accurate expression level of LINC01612 at the single-cell level, we performed droplet digital PCR, and the result revealed that in HUES8-DE cells, the copy number of LINC01612 is comparable to that of lncRNA MALAT1 (Figure 1C), a key lncRNA that is highly expressed in various cancers and during development and mainly localizes to nuclear speckles to regulate cell proliferation via mechanisms involving alternative splicing and transcriptional control (Amodio et al., 2018). Here, MALAT1 is linked to cancer.