Fig 2. Apoptosis and autophagy are induced by HuN4 infection in the thymus of infected piglets.

Levels of proteins related to apoptosis or autophagy in the thymus of piglets at 7 (A) and 10 (B) dpi. Thymus tissues were lysed and western blots were performed. Western blotting results were analyzed digitally and the optical density ratio was calculated, and the bands which were in use for densitometry marked by the arrows; the ratio representatives the mean of measurements for piglets at different time points and the Student’s t-test were carried for the statistical analysis. (n = 3 per time point).