Chapter 32 and 37 Flashcards
(42 cards)
Cause of 75% of cancers
smoking, poor diet
and lack of exercise
Palliation
decrease size of tumor or control side effects to make person feel better, but the cancer continues
Cell Cycle Specific tx: M phase
Plant Alkaloids (Vincristine), Taxanes (Paclitaxel)
Cell Cycle Specific tx: G2 phase
Topoisomerase inhibitors (Irinotecan)
Cell Cycle Specific tx: S phase
Antifolates (methotrexate); Antipurine (hydroxyurea)
Cell Cycle Non-Specific tx
Alkylating agents cyclophosphamide (Cytoxan)
Anthracycline antibiotics (Doxorubicin)
Nitrosureas (Carmustine)
Miscellaenous (Cisplatin, Dacarbazine)
Agents Used in the Treatment of Cancer
Antimetabolites Alkylating agents Plant Alkaloids Antibiotic Antineoplastics Hormones Therapy Monoclonal Antibodies Radioactive Isotopes Biological Response Modifiers
Antineoplastic Agents effect
affect all cells, both healthy and sick
Antineoplastic Agents dose limiting effects
death of GI cells causing N+V
***Myelosuppression (bone marrow suppression): too low a cell count may result in death
Alkylating Agents
Cell cycle non specific
Kills cancer cells by directly attacking DNA
Alkylating Agents uses
treatment of chronic leukemias, Hodgkin’s, lymphomas
Certain lung, breast, prostate, and ovary
Alkylating Agents examples
Cyclophosphamide, nitrogen mustard
Antimetabolites
Interferes with DNA synthesis
stop development and reproduction of cell
cell cycle specific
Antimetabolites examples
mercaptopurine and 5-fluorouracil (5FU)
Antitumor Antibiotics
Bind with DNA and preventing RNA synthesis
Used in a wide variety of cancers
Antitumor Antibiotics examples
Doxorubicin, Mitomycin C and Bleomycin
Plant (Vinca) Alkaloids
Derived from plants
Block cell division during mitosis
Plant (Vinca) Alkaloids uses
ALL, Hodgkin’s and non Hodgkin’s lymphomas, neuroblastomas, cancers of the lung, breast and testes
Plant (Vinca) Alkaloids examples
Vincristine and Vinblastine
Steroid Hormones
Includes adrenocorticosteroids, estrogens, antiestrogens, progesterones and androgens
Steroid Hormones action
unclear- modify the growth of hormone-dependent cancers
Steroid Hormones example
tamoxifen
Combination chemotherapy
only partially effective used together
decreases drug resistance
attacks cancer on several fronts
kills more healthy tissue
Drugs used to treat side effects
Antiemetics (anti-nausea)
Blood-forming agents