Figure 2From: Porcine epidemic diarrhea virus E protein causes endoplasmic reticulum stress and up-regulates interleukin-8 expressionCell proliferation assays of the stable E protein expressing cells. The MTT assay was used to measure proliferation of 3 × 103 cells from IEC cell lines over time. Each data set represents the mean ± S.D. of six replicates.Back to article page