Immunohistochemical Staining (IMAGE) Neural Regeneration Research Caption Immunohistochemical staining showed that PD-L1 immunoreactivity (brown) was present in infiltrating inflammatory cells around blood vessels in the spinal cord of experimental allergic encephalomyelitis mice. Credit <i>Neural Regeneration Research</i> 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.