Immunosuppression is a key intervention in patients with solid organ transplant and is usually achieved by combination therapy with systemic CsA or tacrolimus with azathioprine, mycophenolate mofetil (MMF), or corticoids. However, the outcomes after lung transplantation are poor when compared with those after heart, kidney, or liver transplantation, with a survival rate of only 55% for recipients of lung transplants.