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83 Cards in this Set

  • Front
  • Back
What Are Protein Kinases?
1. Kinases add LARGE, CHARGED PO3 to proteins --> conformational change (change protein func.)
2. ATP and GTP are P03 donors.
3. PK are drug targets.
4.Tyrosine, Serine, Threonine are aa that are phosphorylated.
What is involved in the process of metastasis?
1. Cellular discohension
2. Invasion through BM
3.Invasion to blood/lymphatics.
4. Survival in blood/lymphatics.
5. Growth in "foreign soil"
6. Recruit new vasculature.
Cells are normally anchored to:
BM, ECM and other cells.
Invasion through BM requires?
Enzymes and cell motility!
Invasion Into Blood/Lymphatic Vessels requires that:
Blood and Lymphatic vessels be breached.
Survival in blood/lymphatics requires that cancer avoid?
immune system
For cancer to exist the blood and lymphatics what is required?
that vessels be breached!
Metastasis necessarily means the ability to grow in an environment that is
FOREIGN to the one the cell originated in.
In the absence of blood vessels, growth of a colony of cells is limited to?
Diffusion of oxygen and nutrients.
What is angiogenesis and why do cancers need it?
No blood No life
What is angiogenisis and why do cancers need it?
1. degrade BM of existing vessel.
2. migration of endothelial cells into interstium
3. lumen formation
3. Generation of new BM.
4. Fusion of newly formed vessels.
MMPs are invovled in what step of what pathway?
angiogenesis - first step and they allow pericytes to detach
Pericytes are associated with what?
angiogenesis
Where does lung cancer spread?
Bone, liver adrenal glands brain
Where does breast cancer spread?
Bone liver lungs brain
Where does colon cancer spread?
Abdominal cavity, liver, lungs
Where does prostate cancer spread?
bone
Where does pancreatic cancer spread?
Liver, abdominal cavity
Where does renal cell carcinoma spread?
Lungs, Bones, Brain
What are the major reasons that surgery is used when approaching cancer?
1.Dx (biopsy)
2.Cure (R0 all out) R2 (still gross tumor left)
3.Palliation
What are the major reasons that radiation is used when approaching cancer?
1. Radical cure
2. Adjuvant Radiation After Surgery
3. Palliative Radiation
Adjuvant Radiation After Surgery does what?
Improves survival and local disease!
Cranial radiation is done to "control" what?
metastatic disease
What are the major reasons that drugs are used when approaching cancer? Chemo:
1. Curative
2. Adjuvant
3. Palliative
What diseases can we cure with chemo?
Leukemia, Lymphoma, Germ Cell Cancer
What is the ONLY reason we give adjuvant chemo?
TO IMPROVE SURVIVAL! (after radiation or surgery)
What pallative cancer treatment relieves Pain, Dyspnea, and improves performance Status?
chemo
What are the classes of chemo drugs:
1. Alkylators
2. Anti-metabolites
3. Topoisomerase Inhibitors
4. Microtubule Binding Drugs
5. antibodies
6. tk inhibitors
7. pt
8. hormmonal therapies
What are the alkylators?
Cyclophosphamide, Nitrogen Mustard
What are the anti-metabolites:
1.Fluorouracil (Capecitabine), 2.Cytarabine
3.Gemcitabin
4.Methotrexate
5.Fludarabine
What are the Topoisomerase Inhibitors:
1.Doxorubicin
2. Etoposide
3. Irinotecan
What are the Microtubule Binding Drugs:
1.Vincas
2.Taxanes
What are the Antibodies:
Trastuzumab, Cetuximab, Rituximab
What are the TK inhibitors:
Erlotinib, Sunitinib, Lapatinib
What are the Platinum Compounds:
Cisplatin, Carboplatin, Oxaliplatin
What are the hormonal agents:
1.Tamoxifen
2. Aromatase Inhibitors (Anastrazole),
3. LHRH Agonists
What are the four ways that chemo drugs are metabolized?
1. Renal
2. Hepatic
3. Intracellular
4. Prodrugs
What drugs are primarily renal?
Platinum Analogues, Methotrexate, Bleomycin
What drugs are primarily hepatic?
Taxanes, Vincas, Anthracyclines, Camptothecins, TKIs
What drugs are primarily intracellularly metabolized?
5-FU, Gemcitabine, Cytarabine, Fludarabine
What are the prodrugs?
Cyclophosphamide, Capecitabine, Irinotecan, Tamoxifen
What is the most common toxic effect of chemo drugs and which drugs are exceptions:
Myelosuppression –
Exceptions: Vincristine, Bleomycin, TKIs, Antibodies, Cisplatin
What drugs cause nausea?
Cisplatin, Nitrogen Mustard, Doxorubicin, Nitrosureas
What causes renal side effects:
Cisplatin
What drugs cause neurological problems?
Vincristine, Taxanes, Cis-/Oxalo-platin
What drugs cause cardiac problems?
Doxrubicin, Trastuzumab
What do you FOCUS on in Palliative care? Focus on the P
Focus on patient goals and prognosis (PP)
What interventions work to prevent cancer?
1. tobacco cessation
2. diet
3.surgery (in heritable cancers)
4. Drugs to Prevent Cancer
5. Vaccines to Prevent Cancer
What are the drugs to prevent cancer:
Finasteride: Prostate Cancer
Tamoxifen, Raloxifene: Breast Cancer
What are vaccines to prevent cancer:
Hepatitis B: Hepatocellular Cancer
Papilloma Viruses: Cervical, Head and Neck Cancers
What are 3 definitely effective screens for cancer:
Mammogram, PAP, colonoscopy
Name to maybe useful screens:
Chest CT in Smokers for Lung Cancer

Liver Scan/AFP in HB/CV(+) for Hepatoma
What is the definition of a positive screen:
Reduces Morbidity and Mortality of Screened Cancer, NOT Just Able to Find the Cancer at an Early Stage
Staging vs Grading systems:
Staging -TNM
Grading - morphological guidelines
Does Staging or grading have strong prognostic value?
STAGING - STRONG

some - prognostic value, but little theraptutic value
Give me the real general stages for cancer:
Stage I –Small Tumor, Negative Nodes
Stage II –Larger Tumor or Tumor Invades Deeper Structures, Negative Nodes or Only Immediate Nodal Group
Stage III –Larger Tumor or Positive Nodes
Stage IV –Distant Metastatic Disease
Ped oncology has more of what kind of tumors that adult oncology and less of what?
More Leukemias, less carcinomas
Prediliction for Cancer in Children occur when?
Growth spurts
Do kids or adult cancers more associated with the enviroment?
Kids are not associated with enviroment!
How important is staging in pediatric cancers?
NOT important!
Is cancer more common in kids or adults?
adults
What long term health issues might survivors of cancer have to deal with?
1. Increased risk of second cancers.
2. Long term side effects
What are the long term side effects of chemo:
Heart Failure, Leukemia, Sensory Neuropathy, Renal Insufficiency, Sterility, Pulmonary Fibrosis, etc.
What are the long term side effects of radiation:
Dementia, Sarcomas, Leukemia, Growth Retardation, Dry Mouth, Strictures, etc.
What are the long term side effects of surgery:
Lymphedema, Malabsorption, Maintenance of Stomas, Dyspnea, etc.
How can you explain differences in the incidence of cancer around the world?
1. Differences in enviroment
2. Access to health care
Betel nuts cause cancer where?
Asia, east Africa, tropical pacific
Where is the Esophageal Cancer Belt?
Caspian Sea to China
Infections in two regions cause what kind of cancer via what assault?
1. HepB, Hepatoma in Asia
2. EBV, Burkitt’s Lymphoma in Africa
Where is cervical cancer really problematic?
Third world
What pathologic changes do cells undergo as they transform from normal to cancer?
Normal → Hyperplasia → Dysplasia → CIS → Invasion
What does pleomorphic mean?
change in size, and shape of cell
Name 4 TS genes:
TP53, APC, RB, BRAC1
Name some oncogenes:
sis–B Chain of PDGF
erb-2–HER2
EGFR
KRAS, abl, src
MYC, HOX
what are some of the normal functions of protooncogenes?
Receptors, growth factors, intracellular signal transduction, nuclear TF
sis–B Chain of PDGF is a ____ and what subtype?
sis–B Chain of PDGF -
oncogene - Growth factor
How does HER2 and egfr work?
obvi
KRAS is an oncogene invovled in ____ and it does what?
GTP ase
Neoplasia means ___ and does not neccessarily refer to?
new growth and does Not Necessarily Refer to Benign or Malignant
what's the difference between carcinoma in situ and invasive cancer?
spread
Increase in Number of Cells is called?
hyperplasia
Transformation of One Cell Type Into Another is called?
metaplasia
Abnormal Development of Cells is called?
dsyplasia