Then, we quantified the loss of exon 24 in Dicer1 mRNA in RET/PTC3 Dicer1(−/−) and RET/PTC3 Dicer1(+/−) thyroid tumors compared to RET/PTC3 Dicer1(+/+) mice tumors (Figure 2B). Here, DICER1 is linked to thyroid tumor.