2.2　Cell culture and treatment

The RAW 264.7 cell line was obtained from the Cell Bank of the Chinese Academy of Sciences(Shanghai，China)and cultured in Dulbecco's modified Eagle's medium(DMEM)supplemented with 10% fetal bovine serum and 1% 100×L-Glutamine at 37℃，5% CO2.(https://www.daowen.com)