Reprogrammed Cells (image) Salk Institute Caption For the first time, the Belmonte laboratory has replaced OCT4, one gene previously thought indispensable for the reprogramming of human cells into embryonic-like cells. The picture shows newly reprogrammed cells expressing marks of pluripotency as identified by fluorescence (NANOG in green, TRA-1-81 in red). Credit Courtesy of the Salk Institute for Biological Studies Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. 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.