CD34 Cells (IMAGE) King Abdullah University of Science & Technology (KAUST) Caption Cells without CD34 lack the tentacle-like extensions (red arrows below) that help cells bind to adhesion molecules in the bone marrow. Credit © 2017 Jasmeen Merzaban 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.