The miRNA-SNP of rs3742330 of DICER1 has been identified for its association with the cancer outcome of CRC, T-cell lymphoma, oral premalignant lesions and renal cell carcinoma [49–51,42].The AA allele of rs3742330 located in the DICER1 gene exhibited a significantly increased risk of CRC. Here, DICER1 is linked to cancer.