IGF2BP3 and cancer: Interestingly, via analyzing single‐cell RNA (scRNA) sequencing data,[24, 25] we found that expression levels of IGF2BP3 in LUAD tumor cells were dramatically higher than those in any other cell type, indicating unique high‐level IGF2BP3 specifically expressed in LUAD tumor cells (Figure 1E), and that IGF2BP3 closely correlated with cancer metastasis signature at both single‐cell level and bulk‐tumor level via exploring scRNA‐seq‐based CancerSEA dataset and TCGA LUAD datasets, respectively (Figure S1A,B, Supporting Information).