Fig. 1From: Applications and therapeutic mechanisms of action of mesenchymal stem cells in radiation-induced lung injuryThe primary mechanisms /pathogenesis of radiation-induced lung injury (RILI): direct DNA damage; the generation of ROS; RAAS system activation; the activation of the immune system. ROS, reactive oxygen species; RAAS system, renin-angiotensin-aldosterone system; EMT, epithelial-to-mesenchymal transitionBack to article page