It has been shown that RBM39, a transcriptional coactivator of activator protein‐1 (AP‐1/Jun), oestrogen receptor and NF‐kB,10, 11, 12 is involved in energy and redox homeostasis and cancer cell proliferation, in addition to its role in vascular endothelial growth factor splicing.13 Here, RBM39 is linked to cancer.