Mouse Spleen Cross Section (IMAGE) PLOS Caption This is an immune-fluorescence staining of cross section of whole spleen. Green: B220 marker for B cells, Red: CD3 marker for T cells, and Blue: GL7 marker for germinal center cells. Credit Matar et al., CC-BY 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.