Fig.2 (IMAGE) Osaka University Caption This graph shows the percentage of immune cells in developing brain at each stage. B cells are most abundant among the lymphocytes in developing brain. Right figures show B cells (green) and nucleus (blue) in mouse brain at postnatal day 1. B cells are abundant in meningeal space. 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.