TNF and lung adenocarcinoma: In another study, Yin et al. [130] reported that the binding of HSPs to the promoter acted as a switch to induce the expression of TNF-α in human lung adenocarcinoma A549 cells transfected with a TNF-α-specific construct with magnetite cationic liposomes and exposed to an AMF (30.6 kA/m, 118 kHz), while the temperature was controlled at 45 °C.