Zhang X, Herr F, Vernochet A, Lorenzo HK, Beaudreuil S, Dürrbach A. CASK, the Soluble Glomerular Permeability Factor, Is Secreted by Macrophages in Patients With Recurrent Focal and Segmental Glomerulo—Sclerosis. Front. Immunol. 2020 May 12;11(). doi: 10.3389/fimmu.2020.00875.