Model of the Findings: Naïve T Cells Do not Express Vitamin D Receptor nor Plc-Gamma1 (image) University of Copenhagen Share Print E-Mail Caption When the naïve T cell recognizes foreign molecules with its T cell receptor (TCR) it sends activation signals (1) to the VDR gene. The VDR gene now starts the production of VDR (2). VDR binds vitamin D in the T cell (3) and becomes activated. Vitamin D bound to activated VDR goes back into the cell nucleus and activates the gene for PLC-gamma1 (5). PLC-gamma1 is produced (6) and the T cells can get started. Credit Professor of Immunology, Carsten Geisler Usage Restrictions This image and all other graphic or textual content related to the press release is embargoed until March 7, 1800 London Time, 1300 US Eastern Standard Time 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.