Moreover, a previous report pointed out that the increased TFR1 and DMT1 expression were linked with elevated ferroptosis and severe asthma [21], which was also verified in the present study, but Ferr-1 and/or 3-MA treatment could greatly reduce the protein expression of TFR1 and DMT1 (Figure 5(e)). Here, SLC11A2 is linked to asthma.