19.4+Treatment+of+Cancer

19.4 Treatment of Cancer

Questions 1. What three types of therapy are presently the standard ways to treat cancer? The three types of therapy that are presently the standard ways to treat cancer are: • Surgery: Surgery is sometimes effective, but when it is not it leaves behind some cancer cells and radiation therapy ends up following. • Radiation Therapy: Ionizing radiation causes chromosomal breakage and cell cycle disruption. Therefore, dividing cells, such as cancer cells, are more susceptible to its effects than other cells. • Chemotherapy: Radiation is localized therapy, while chemotherapy is a way to catch cells that have spread throughout the entire body. One of chemotherapy’s man advantages is that—unlike radiation, which treats only the part of the body exposed to the radiation, it treats the entire body. 2. A. What is an active form of immunotherapy? There is a vaccine that is being worked on called Melacine that will treat melanoma. B. What is a passive form of immunotherapy for cancer? Monoclonal antibodies are antibodies of the same type and are designed to zero in on the receptor proteins for cancer cells. 3. What type of p53 therapy is available? P53 therapy is needed for only 19 hours to trigger programmed cell death. T53 gene triggers cell death in cancer cells. 4. What is the rationale for antiangiogenesis therapy? The fact that they confine and reduce tumors by breaking up the network of new capillaries in the vicinity of a tumor.

NUMBER 5 TOO.