CXCL10, also known as Interferon-gamma-induced protein 10 kDa (IP-10). CXCL10 is a C-X-C motif chemokine that is powerfully induced by interferon-gamma (IFN-γ) and other pro-inflammatory signals. Its primary biological function is to bind to and signal through the CXCR3 receptor, which is expressed on activated T cells (particularly Th1 cells), NK cells, and other leukocytes. By binding to CXCR3, CXCL10 triggers intracellular calcium flux and directs the migration (chemotaxis) of these effector cells toward sites of high chemokine concentration, such as inflamed tissues in autoimmune diseases, chronic viral infections, and allograft rejection.