Diverse cells, including leukocytes, monocytes, and macrophages [4–6], as well as other molecules, such as chemokines (monocyte chemoattractant protein-1) [7, 8], adhesion molecules (intercellular adhesion molecule-1 (ICAM-1)) [9, 10], are implicated in processes related to diabetic nephropathy. The gene discussed is ICAM1; the disease is diabetic kidney disease.