About the authors

Jochen Huehn

Jochen Huehn is head of the Department for Experimental Immunology at the Helmholtz Centre for Infection Research in Braunschweig, Germany. After studying biochemistry and molecular biology, he did his Ph.D. at the Bernhard Nocht Institute for Tropical Medicine in Hamburg, Germany, on T-cell signalling. As a postdoctoral researcher he worked in the laboratory of Alf Hamann in Charité University Medicine, Berlin, Germany, and studied the migratory behaviour of regulatory T-cell subsets. The main research topics in Jochen Huehn's laboratory include immunoregulatory mechanisms with a focus on the development and functional properties of regulatory T cells.

Julia K. Polansky

Julia K. Polansky is currently a Ph.D. student in the laboratory of Jochen Huehn at the Helmholtz Centre for Infection Research and is about to finish her dissertation on the epigenetic control of the forkhead box P3 (FOXP3) locus. As a student, she worked in the laboratory of Harald von Boehmer at Harvard Medical School, Boston, USA, on regulatory T-cell physiology and FOXP3.

Alf Hamann

Alf Hamann works at the Deutsches Rheuma-Forschungszentrum, Berlin, Germany, and is head of the ImmunoSciences Research Center at Charité University Medicine. After studying biology, he became interested in cellular immunology, notably T-cell homing and adhesion molecules, when working at the University Hospital Hamburg, Germany. Today, the topics of immune tolerance, regulatory T cells and immunotherapy are a second focus in his research group.