Compared with the control group, the expression of NF‐κB1 decreased (p < 0.05) and the expression of NF‐κBiz significantly increased (p < 0.01) in the BPD group, while the expression of NF‐κBiz was inhibited after the activation of TRPC3. Here, NFKBIZ is linked to bronchopulmonary dysplasia.