CCL2 and autosomal dominant polycystic kidney disease: Blood and urine markers have been reported to be useful for predicting worsening renal function in patients with ADPKD, and, in a previous report, neutrophil gelatinase-associated lipocalin, lipocalin-2 (NGAL), macrophage-colony stimulating factor (M-CSF), and monocyte chemoattractant protein-1 (MCP-1) were useful urinary biomarkers [15,16,17,18,19,20,21,22].