1 Lyon-Est Medical Faculty, Claude Bernard University (Lyon 1), Lyon, France; Hospices Civils de Lyon, Edouard Herriot Hospital, Department of Transplantation, Nephrology and Clinical Immunology, Lyon, France; CIRI, INSERM U1111, Université Claude Bernard Lyon I, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Univ. Lyon, Lyon, France. Electronic address: olovier.thaunat@chu-lyon.fr.
2 Agence de la Biomédecine, Saint Denis la Plaine, France.
3 Department of Nephrology and Transplantation, Strasbourg University Hospital, Strasbourg, France.