Figure 4. Pandemic OK/09 induces lower RIG-I protein responses than PR8 in human lung.

Human lung slices were exposed to 6×10⁶ PFU/ml of PR8 or OK/09 for 8 h and 24 h. Western blot analysis was used to determine RIG-I protein expression in lung slices. Membranes were probed with anti-RIG-I or anti-GAPDH antibodies. Protein expression of RIG-I was normalized relative to GAPDH. Data are representative of 3 separate experiments.