Fig 6. A comparison of exogenous and endogenous Interleukin-22 in the lungs.
Because fk-652 is a human protein, we are able to differentiate between exogenous IL-22:Fc and endogenous IL-22:Fc. Treatment with IL-22:Fc appears to result in increased endogenous mouse IL-22 (C). Exogenous human IL-22 was detected in the BAL of treated mice (A and B) demonstrating that exogenous IL-22:Fc is reaching the lung. D) Endogenous mouse IL-22:Fc was not increased in IL-22:Fc treated after high-dose LPS injury.