In addition, Zhao et al. [105] revealed that N-myc downstream regulatory gene 1 (NDRG1) can regulate the invasive potential of OCa cells, and their results showed that the downregulation of NDRG1 can also cause the downregulation of CTSK, MMP7and TMPRSS4. This evidence concerns the gene NDRG1 and oculocutaneous albinism.