CD4 and infection: CXCL10 [also known as interferon-gamma stimulating protein-10 (IL-10)] is a chemokine that is effective in aggregating and locating inflammatory cells in the site of tissue damage or infection.27 CXCR3, a receptor for CXCL10, is expressed on CD4+ and CD8+ T-lymphocytes, B-lymphocytes, natural killer, and dendritic cells.