Copyright © Wolters Kluwer Health. Unauthorized reproduction of this article is prohibited. Transplantation Publish Ahead of Print DOI: 10.1097/TP.0000000000001746 1 Vitamin D and Th17 Lymphocytes Mostafa G. Aly 1,2,§ , Gerhard Opelz 1 , Volker Daniel 1 1 Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany 2 Nephrology Unit, Internal Medicine Department, Assiut University, Egypt §Corresponding author Mostafa G. Aly Email: M_Gaafar1984@hotmail.com Gerhard Opelz Email: Gerhard.opelz@med.uni-heidelberg.de Volker Daniel Email: Volker.daniel@med.uni-heidelberg.de ACCEPTED