Katherine Bagley | Jan 1, 2010 | 4 min read
By Katherine Bagley Tricky T Cells A new lymphocyte behind autoimmunity has created feverish excitement—and raised as many questions as it answers. TGF-β-Stimulated T cells; stained with a DNA-specific fluorochrome (blue), anti-RORγ (red) and anti-Foxp3 (green) monoclonal antibodies. Courtesy of Liang Zhou As the number of people suffering from autoimmune and inflammatory diseases continues to grow, scientists are