RACGAP1 and hepatocellular carcinoma: To further elucidate which of the miRNAs targeted both RACGAP1P and RACGAP1 to mediate the observed crosstalk, we overlaid the miRNAs predicted to target RACGAP1 and RACGAP1P in RegRNA2.023 and previously reported HCC tumour suppressive miRNAs24 and finally obtained 8 candidate miRNAs including miR-15a-5p, miR-23b-3p, miR-138-5p, miR-29c-3p, miR-125b-5p, miR-150-5p, miR-193b-3p, miR-320a (Fig. 3a).