IL4 and diabetic kidney disease: Abbreviations: DKD (Diabetic Kidney Disease), APC (Antigen-Presenting Cells), IFN-γ (Interferon-γ), IL-4 (Interleukin-4), IL-13 (Interleukin-13), IL-17 (Interleukin-17), DC (Dendritic Cells), NK Cells (Natural Killer Cells).