vSMC Chart (IMAGE) Johns Hopkins University Caption Starting with stem cells, the research team was able to create two types of smooth muscle cells needed to grow new blood vessels. Credit Maureen Wanjare/JHU 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.