The effects of RNF2 were studied in human postmortem IS brains, a rat model of IS, tunicamycin (TM)‐induced mouse neuroblastoma neuro2a (N2a) cells, and oxygen–glucose deprivation/reperfusion (OGD/R)‐induced SH‐SY5Y cells. Here, RNF2 is linked to neuroblastoma.