Fig. 8

A proposed model illustrated the mechanism by which 5-methoxyflavone protected against LPS-induced lung injury. 5-Methoxyflavone has the capacity to activate Nrf2/HO-1 signaling, which resulted in attenuating the pro-inflammatory through suppression of TLR4/NOX4/ROS/NF-ĪŗB/P38 MAPK signaling in BEAS-2B cells. Furthermore, the activation of Nrf2/HO-1 signaling by 5-methoxyflavone inhibited activation of STAT1 signaling, and subsequently suppressed M1 macrophage polarization and repolarization of M2 macrophages into M1