PINK1 and cancer: Of note, a similar dual role for CRABP2 in breast cancer metastasis under different conditions has also been reported,[12c] with several studies identifying opposing effects on proliferation and metastasis in various cancers.[28] Overall, however, our data suggest that the pro‐tumorigenesis function of CRABP2 is greater than the anti‐tumorigenesis effects induced by PINK1‐mediated mitophagy (Figure 6; Figures S5 and S6, Supporting Information).