BAK-mediated cytokine transcription levels were significantly increased in the late stage of JEV proliferation. (A) JEV-infected normal cells and BAK.KD cells were collected, the total RNA was extracted and reverse transcribed into cDNA, and the expression of the intracellular E gene was measured at 24 and 48 h. (B) Normal cells and BAK.KD cells were also quantitatively determined by the fluorescence quantitative determination of JEV-induced changes in the transcriptional levels of inflammatory cytokine genes, with GAPDH as the reference gene. Three independent replicates were set for each experiment, and the experimental results were averaged for processing. * (p < 0.05), ** (p < 0.01), *** (p < 0.001), and ns (not significant).