The majority of UPS tumors are highly aggressive, often recur after surgical removal, and often metastasize. They are treated with a combination of surgical resection, radiotherapy, and/or chemotherapy. More recently, UPS tumors have been treated with antibody therapy, i.e. antibodies which in the case of UPS bind to specific antigens on the surface of T-cells (a type of lymphocyte) and thereby promote the ability of these T-cells to organizes an attack on UPS tumor cells.
