Leydig-Like Cells Made From Stem Cells (image) Cell Press Share Print E-Mail Caption In this image, the GFP-expressed fibroblasts (yellow arrows, left) and the induced Leydig-like cells (green arrows, right) immigrate into the interstitial regions of seminiferous tubules (indicated by the "white bracket") after transplatation. The induced Leydig-like cells express all essential enzymes of steroidogenesis and synthesize the testosterone triggered by Luteinizing hormone. Credit Courtesy of Zhijian Su Usage Restrictions Credit Required. Share Print E-Mail 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.