Intro to Oncology Flashcards
What are the most common cancers in the US?
prostate, lung, and breast cancer
What is the most common cause of cancer-related deaths?
lung cancer
What is the role of a pharmacist in cancer treatment?
to have a thorough understanding of the pharmacokinetic, pharmacodynamic, and pharmacogenomic properties of all the anticancer agents
How is cancer thought to develop?
the normal mechanisms for cell growth and proliferation in a cell are altered
What is the process of cancer formation called?
carcinogenesis
What are the stages of carcinogenesis
- Initiation
- Promotion
- Conversion
- Progression
What is initiation?
when normal cells are exposed to carcinogens
What is promotion?
carcinogens alter the environment to favor altered cell growth over normal cell growth
What is conversion?
the normal cell turns cancerous
What is progression?
further genetic alterations that lead to rapid proliferation, invasion into local tissues, and metastasis
Which drugs can cause leukemia?
- alkylating agents
- anthracyclines
- epipodophyllotoxins
which drugs can cause liver cancer?
- anabolic steroids
2. steroidal estrogens
what drugs can cause renal or urinary cancer?
- analgesics containing phenacetin
2. oxazaphosphorines
Which drugs can cause endometrium cancer?
- antiestrogens
- nonsteroidal estrogens
- steroidal estrogens
Which drugs can cause skin cancer
- coal tar
2. immunosuppressive drugs
Which drug can cause vaginal or cervical cancer?
nonsteroidal estrogens
Which drugs can cause breast cancer?
- steroidal estrogens
2. nonsteroidal estrogens
Which drug can cause testicular cancer
nonsteroidal estrogens
Which drug can cause lymphomas?
immunosuppressive drugs
What two types of genes play an important role in the development of cancer?
oncogenes and tumor suppressor genes
What are the functional abilities acquired by cancer cells?
- angiogenesis
- self-proliferation
- insensitivity to antigrowth signals
- metastasis
- antiapoptotic effects
How are proto-oncogenes turned into oncogenes?
through genetic alterations such as point mutations, chromosomal rearrangements, or gene amplifications
What is the oncogene responsible for?
it either produces excessive amounts of normal gene product or an abnormal gene product
ALK
lung cancer, lymphomas, neuroblastoma, ovarian cancers
BCR-ABL
acute lymphoblastic leukemia and chronic myeloid leukemia
BCL-2
B-cell lymphomas
BRAF
colon cancer, lung cancer, melanoma, ovarian cancer, and thyroid cancer
ERBB1
colon cancer, glioblastoma multiforme, lung cancer
ERBB2
breast, gastric, and lung cancers
KIT (CD117)
acute leukemia and gastrointestinal stromal tumor
MYC
acute myeloid leukemia, breast cancer, lung cancer, pancreatic cancer, retinoblastoma, T-cell lymphomas
P13KCA
lung and ovarian cancer
RAS (NRAS, HRAS, KRAS)
colon cancer, melanoma, ovarian cancer, and thyroid cancer
RET
lung cancer and thyroid cancer
APC
colon and thymus cancer
BRCA1 and BRCA2
breast and ovarian cancer
MSH2, MLH1, PMS1, PMS2, MSH6
colon cancer
NF1 and NF2
melanomas and leukemia
P53
multiple cancers
PTEN
lung and ovarian cancers
RB1
bladder cancer, retinoblastoma, sarcoma
VHL
renal cell cancer
What do DNA repair genes do?
repair DNA damaged by environmental factors
What is the theory of sequential genetic alteration?
one gene alteration isn’t enough to cause cancer. It takes multiple somatic alterations.
What are passenger mutations?
gene mutations that don’t lead to cancer
What are driver mutations?
mutations that support the longterm survival of cancer
What are the most important proteins associated with the cell cycle clock?
cyclins and cyclin-dependent
What are the phases of the cell cycle?
S phase, M phase, G1 and G2 phase, and G0 phase
7 warning signs of cancer
CAUTION
C - change in bowel or bladder habits A - a sore throat that doesn't heal U - unusual bleeding or discharge T - thickening or lump I - indigestion or difficulting swallowing O - obvious change in wart/mole N - nagging cough or hoarseness
What does the definitive diagnosis of cancer rely on?
tissue sample/biopsy
What is the purpose of staging?
Do give a prognosis and guide treatment selection
What are tumor markers used for?
Treatment response and detecting recurrence
What is the staging system?
TNM
Tumor
Nodes
Metastasis
What are the three modalities used to treat cancer?
radiation, surgery, and chemotherapy
What is the treatment of choice for early-stage cancer?
surgery
What is adjuvant therapy?
systemic therapy given after surgery
What is neoadjuvant therapy?
systemic therapy given before surgery
What is induction therapy?
systemic therapy to eradicate cancer in the blood or lymph
What is consolidation therapy?
systemic therapy that eradicates any remaining cells in the blood or lymph
What is maintenance therapy?
systemic therapy given to retain remission
benign surface epithelium
papilloma
malignant surface epithelium
carcinoma
benign glandular
adenoma
malignant
adenocarcinoma
benign fibrous
fibroma
malignant fibrous
fibrosarcoma
benign bone
osteoma
malignant bone
osteosarcoma
benign smooth muscle
leiomyoma
malignant smooth muscle
leiomyosarcoma
benign striated muscle
rhabdomyoma
malignant striated muscle
rhabdomyosarcoma
malignant lymphoid
lymphomas
malignant plasma
multiple myeloma
benign glial tissue
gliomas
malignant glial tissue
glioblastima, astrocytoma
benign melanocytes
pigmented nevus
malignant melanocytes
melanoma
benign nerve sheath
neurofibroma
malignant nerve sheath
neurobibrosarcoma
benign gonadal tissue
teratoma
malignant gonadal tissue
teratocarcinoma