Dr. André Ballesteros-Tato received his Ph.D. in Molecular Biology from the Autonoma University of Madrid in Spain in July 2007. For his thesis work, he studied the role of the cell cycle inhibitor, p21, and the apoptosis-inducing receptor, Fas, in controlling immunological tolerance in murine and human autoimmune diseases. In 2008, he joined the laboratory of Dr. Troy Randall at Trudeau Institute as a postdoctoral fellow, and then later moved with Dr. Randall's lab to the University of Rochester. As a postdoc, he studied how dendritic cell (DC) subsets responded to influenza infection and how they controlled CD8+ T cell priming and promoted memory T cell differentiation. After joining the Department of Medicine at UAB as an Assistant Professor in June 2015, Dr. Ballesteros-Tato continued his studies of T cell responses, this time focusing on CD4+ T cells and their ability to differentiate into various types of T helper cells following exposure to pathogens, allergens and autoantigens.