Emma+19.4

1.What three types of therapy are presently the standard ways to treat cancer? - Surgery, Radiation Therapy and Chemotherapy 2.a. What is an active form of immunotherapy and (b) a passive form of immunity for cancer? -a. Active immunotherapy involves using immune cells, genetically engineered to bear the tumor's antigens. When these cells are returned to the body, they produce cytokines and present the antigen to the cytotoxic T cells, which then go and destroy tumor cells in the body. -b. Monoclonal antibodies are antibodies of the same type because they are produced by the same plasma cell. come monoclonal antibodies are designed are designed to zero in on the receptor proteins of cancer cells. To increase the killing power of monoclonal antibodies, they are linked to radioactive isotopes or chemotherapeutic drugs. 3.What type of p53 therapy is available? - p53 therapy is needed for only 19 hours to trigger programmed cell death (apoptosis). And the p53 gene seems to trigger cell death in cancer cells. 4. What is the rationale for antiangiogenesis therapy? -Antiangiogenic drugs confine and reduce tumors by breaking up the network of new capillaries in the vicinity of a tumor.
 * 19.4**

QUESTION 5.