Wharton's Jelly Mesenchymal Stem Cells (IMAGE) Neural Regeneration Research Caption Wharton's jelly mesenchymal stem cells changed into a bulbous shape with some of the thin extensions touching each other during the induction in serum-free neural stem cell-conditioned medium supplemented with Dkk-1 and LeftyA. 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.