Marked T Lymphocytes (IMAGE) Osaka University Caption Marked T lymphocytes infiltration around islets and exocrine region with a predominance of CD8-positive T lymphocytes (A-F) and expression of PD-L1 in β and α cells in the patients (G-L) and the control patient (M-R). Credit Osaka University 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.