S-100 or S100 is found in high levels in astrocytes and a number of other tissues such as Schwann cells, melanocytes, glial cells, histiocytes, lipocytes, skeletal and cardiac muscle, chondrocytes, adipocytes, myoepithelial cells, macrophages, Langerhans cells, dendritic cells, and keratinocytes. SensiStain Anti-S-100 Antibody is a useful marker for Schwann cell-derived tumors.SensiStain Anti-Serotonin Antibody