Tanycytes (IMAGE) University of Warwick Caption The image shows the tanycytes expressing the light-sensitive ion channel (green), a general tanycyte marker (vimentin, red) and a stain for the cell nucleus (blue) Credit University of Warwick Usage Restrictions Only to be used in conjunction with this story 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.