Mesenchymal Stem Cells (IMAGE) Brigham and Women's Hospital Caption Researchers identified a small molecule that can be used to program mesenchymal stem cells (blue and green) to home in on sites of damage. Credit Oren Levy, Brigham and Women's Hospital Usage Restrictions Please credit Oren Levy, Brigham and Women's Hospital 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.