HMOX1 and glioblastoma: The induction of ferroptotic death by BAY 11–7085, an inhibitor of IκBα phosphorylation that produces NF‐κB inactivation [329], in triple‐negative breast cancer and glioblastoma cells, involved the upregulation of HO‐1, and HO‐1's effect was decreased by the specific HO‐1 inhibitor, zinc protoporphyrin‐9 [330].