PAK5 and breast cancer: One research reported that NF‐κB‐p65 activation promoted vascular smooth muscle cell proliferation under inflammation through the microRNA‐17/RB pathway.43 Zhang et al6 found that the PAK5‐mediated phosphorylation and nuclear translocation of NF‐κB‐p65 promote the proliferation of breast cancer cells in vitro and in vivo.