Fig. 2 (IMAGE) Osaka University Caption Plasma cells right after arriving at bone marrow are B220(hi) MHC-II(hi), whereas those survived for long period of time in bone marrow become B220(lo) MHC-II(lo). Credit Koike et al. Usage Restrictions Cannot be used without permission. License Original 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.