1Team “Inflammation, Complement and Cancer,” INSERM UMRS1138, Centre de Recherche des Cordeliers, Paris, France

2Department of Immunology Biology, Assistance Publique-Hôpitaux de Paris, European Hospital Georges Pompidou, Paris, France

3Department of Nephrology and Transplantation, Assistance Publique-Hôpitaux de Paris, Henri-Mondor Hospital, Créteil, France

4INSERM U955, Institut Mondor de Recherche Biomédicale (IMRB), Créteil, France

5Department of Pediatric Nephrology, Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Paris, France

6Department of Nephrology, Rouen University Hospital, Rouen, France

7Department of Nephrology, Poitiers University Hospital, Poitiers, France

8Department of Pediatrics, Rouen University Hospital, Rouen, France

9Department of Nephrology, Nice University Hospital, Nice, France

10Department of Nephrology, Assistance Publique-Hôpitaux de Marseille, CHU Conception, Marseille, France

11INSERM, INRAE, C2VN, Aix-Marseille University, Marseille, France

12Department of Nephrology, Assistance Publique-Hôpitaux de Paris, European Hospital Georges Pompidou, Paris, France

13Department of Nephrology, Rennes University Hospital, Rennes, France

14Department of Nephrology, Lille University Hospital, Lille, France

15Department of Nephrology, Toulouse University Hospital, Toulouse, France

16Department of Pediatric Nephrology, Assistance Publique-Hôpitaux de Marseille, Timone Hospital, Marseille, France

17Department of Nephrology and Renal Transplantation, Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France

18Department of Nephrology, Foch Hospital, Suresnes, France

19Department of Nephrology and Renal Transplantation, Assistance Publique-Hôpitaux de Paris, Bicetre Hospital, Le Kremlin-Bicêtre, France

20Department of Nephrology, Reims University Hospital, Reims, France

21Department of Nephrology, Montpellier University Hospital, Montpellier, France

Correspondence: Dr. Sophie Chauvet, Department of Nephrology, European Hospital Georges Pompidou, 20 Rue Leblanc, 75015 Paris, France, or Dr. Véronique Frémeaux-Bacchi, Department of Immunology Biology, European Hospital Georges Pompidou, 20 rue Leblanc, 75015 Paris, France. Email: [email protected] or [email protected]