Back to the Beginning (1 of 2) (IMAGE) Washington University in St. Louis Caption Researchers at Washington University have developed a new way to transform human induced pluripotent stem cells (hiPSC) into nucleus pulposus cells, which are the chief component of intervertebral discs. This image shows day 36 of the differentiation process, as the hiPSCs are cultured with nucleus pulposus differentiation media. Credit Setton Lab, Washington University in St. Louis 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.