Cell culture
RAW264.7 macrophages were obtained from the cell bank of the Chinese
Academy of Sciences (Shanghai, China). J774A.1 macrophages were
purchased from BeNa Culture Collection (Jiangsu, China). Human THP-1 and
HEK293T cells were purchased from American Type Culture Collection
(Manassas, VA, USA). Cells were cultured in DMEM or RPMI 1640
supplemented with 10% FBS. Cells were maintained at 37 °C under a
humidified atmosphere of 5 % CO2 in an incubator.