Expression levels of lincRNA-73240 upon APEC infection. (A) lincRNA-73240 expression in HD11 cells that infected with APEC quantified using lncRNA-seq. The cut-off is p value is less than 0.05, and |fold change| value is more than 1.5. (B) lincRNA-73240 expression was measured in HD11 cells with APEC infection at different dose for 24 h, quantified using RT-qPCR. (C) lincRNA-73240 expression was identified in HD11 cells with APEC infection at a dose of 1 × 108 cfu/mL for 3 h, 6 h, 12 h, 24 h, and 48 h, quantified using RT-qPCR. Data expressed as mean ± SD of four independent experiments; ANOVA test; ns, not significant; * p < 0.05; ** p < 0.01; **** p < 0.0001.