ILRUN, also known as interleukin-like RUN domain-containing protein, is a recently identified protein that plays a role in immune regulation. Located within the cytoplasm, ILRUN contains a RUN domain, which facilitates protein-protein interactions. Although its precise function is still under investigation, ILRUN is thought to modulate immune responses, potentially influencing cytokine production, immune cell activation, and inflammatory processes. It has also been proposed as a potential biomarker for certain immune-related or inflammatory conditions.