Autoimmunity in Parkinson's Disease (IMAGE) La Jolla Institute for Immunology Caption Clumps of alpha-synuclein build up in the dopamine-producing brain cells of patients with Parkinson's disease. T cells that react to alpha-synuclein are most abundant when patients are first diagnosed with the disease. Credit La Jolla Institute for Immunology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.