CD68 antibody human specific - HS-460 017

CD68, also called Lamp-4 in humans or macrosialin in mice, is a highly glycosylated type I transmembrane protein that belongs to the lysosome associated membrane protein (LAMP) family (1). CD68 expression is increased in cells associated with elevated phagocytic and degradative activity. High CD68 expression is detected in cells of the mononuclear phagocyte lineage including macrophages, osteoclasts, and myeloid dendritic cells (2). CD68 is a marker of activated microglia and only expressed at low levels in resting microglia (3). Staining for CD68 is predominantly intracellular, only 10 -15% of it is found on the cell surface. In oncology research, CD68 is the major biomarker for quantification of tumor-associated macrophages (TAMs) (4). High infiltration of CD68+ macrophages is an independent prognostic factor for overall survival in several tumor entities (5).