CD74 in the Placenta (image) Max Delbrück Center for Molecular Medicine in the Helmholtz Association Share Print E-Mail Caption CD74 (red) is expressed by healthy macrophages at the end of pregnancy. Trophoblasts are stained in green, nuclei in blue. Credit Image: Florian Herse/MDC. Usage Restrictions None Share Print E-Mail 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.