The Young laboratory has as its major focus how disruption of the control of interferon-γ (IFN-γ) gene expression during development and maturation of the cellular immune system impacts the host inflammatory response and the development of autoimmune disease and cancer. His laboratory has developed a mouse model of chronic Interferon-gamma expression that results in at least 3 different autoimmune diseases resembling lupus, aplastic anemia and primary biliary cholangitis. In addition the male mice exhibit a heart function defect after exercise, This model may provide new insight into the initiation and progression of these diseases and offer novel approaches to treatment.