NH+19.4

1. What three types of therapy are presently the standard ways to treat cancer? -Surgery, radiation, and chemotherapy

2. a) What is an active form of immunotherapy for cancer? -Using immune cells that are genetically engineered to have the tumors antigens. These immune cells produce cytokines and present the antigen to the to the cytotoxic T-cells which destroy the cancer cells. b) What is a passive form of immunotherapy for cancer? -Using monoclonal antibodies to attach to the receptors of cancer cells and are linked to radioactive isotopes or chemotherapeutic drugs.

3) What type of p53 therapy is available? -use a genetically engineered adenovirus that doesn't have a p53 gene so it will only kill tumor cells which lack the p53 gene.

4) What is the rationale for antiangiogenesis therapy? -they break up capillaries around the tumor to inhibit the growth of new blood vessels so that the cancer can't spread.

QUESTION 5