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83 Cards in this Set
- Front
- Back
What Are Protein Kinases?
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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. |
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What is involved in the process of metastasis?
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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. |
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Cells are normally anchored to:
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BM, ECM and other cells.
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Invasion through BM requires?
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Enzymes and cell motility!
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Invasion Into Blood/Lymphatic Vessels requires that:
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Blood and Lymphatic vessels be breached.
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Survival in blood/lymphatics requires that cancer avoid?
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immune system
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For cancer to exist the blood and lymphatics what is required?
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that vessels be breached!
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Metastasis necessarily means the ability to grow in an environment that is
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FOREIGN to the one the cell originated in.
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In the absence of blood vessels, growth of a colony of cells is limited to?
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Diffusion of oxygen and nutrients.
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What is angiogenesis and why do cancers need it?
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No blood No life
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What is angiogenisis and why do cancers need it?
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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. |
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MMPs are invovled in what step of what pathway?
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angiogenesis - first step and they allow pericytes to detach
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Pericytes are associated with what?
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angiogenesis
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Where does lung cancer spread?
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Bone, liver adrenal glands brain
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Where does breast cancer spread?
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Bone liver lungs brain
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Where does colon cancer spread?
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Abdominal cavity, liver, lungs
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Where does prostate cancer spread?
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bone
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Where does pancreatic cancer spread?
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Liver, abdominal cavity
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Where does renal cell carcinoma spread?
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Lungs, Bones, Brain
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What are the major reasons that surgery is used when approaching cancer?
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1.Dx (biopsy)
2.Cure (R0 all out) R2 (still gross tumor left) 3.Palliation |
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What are the major reasons that radiation is used when approaching cancer?
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1. Radical cure
2. Adjuvant Radiation After Surgery 3. Palliative Radiation |
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Adjuvant Radiation After Surgery does what?
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Improves survival and local disease!
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Cranial radiation is done to "control" what?
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metastatic disease
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What are the major reasons that drugs are used when approaching cancer? Chemo:
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1. Curative
2. Adjuvant 3. Palliative |
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What diseases can we cure with chemo?
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Leukemia, Lymphoma, Germ Cell Cancer
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What is the ONLY reason we give adjuvant chemo?
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TO IMPROVE SURVIVAL! (after radiation or surgery)
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What pallative cancer treatment relieves Pain, Dyspnea, and improves performance Status?
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chemo
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What are the classes of chemo drugs:
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1. Alkylators
2. Anti-metabolites 3. Topoisomerase Inhibitors 4. Microtubule Binding Drugs 5. antibodies 6. tk inhibitors 7. pt 8. hormmonal therapies |
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What are the alkylators?
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Cyclophosphamide, Nitrogen Mustard
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What are the anti-metabolites:
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1.Fluorouracil (Capecitabine), 2.Cytarabine
3.Gemcitabin 4.Methotrexate 5.Fludarabine |
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What are the Topoisomerase Inhibitors:
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1.Doxorubicin
2. Etoposide 3. Irinotecan |
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What are the Microtubule Binding Drugs:
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1.Vincas
2.Taxanes |
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What are the Antibodies:
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Trastuzumab, Cetuximab, Rituximab
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What are the TK inhibitors:
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Erlotinib, Sunitinib, Lapatinib
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What are the Platinum Compounds:
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Cisplatin, Carboplatin, Oxaliplatin
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What are the hormonal agents:
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1.Tamoxifen
2. Aromatase Inhibitors (Anastrazole), 3. LHRH Agonists |
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What are the four ways that chemo drugs are metabolized?
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1. Renal
2. Hepatic 3. Intracellular 4. Prodrugs |
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What drugs are primarily renal?
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Platinum Analogues, Methotrexate, Bleomycin
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What drugs are primarily hepatic?
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Taxanes, Vincas, Anthracyclines, Camptothecins, TKIs
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What drugs are primarily intracellularly metabolized?
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5-FU, Gemcitabine, Cytarabine, Fludarabine
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What are the prodrugs?
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Cyclophosphamide, Capecitabine, Irinotecan, Tamoxifen
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What is the most common toxic effect of chemo drugs and which drugs are exceptions:
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Myelosuppression –
Exceptions: Vincristine, Bleomycin, TKIs, Antibodies, Cisplatin |
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What drugs cause nausea?
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Cisplatin, Nitrogen Mustard, Doxorubicin, Nitrosureas
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What causes renal side effects:
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Cisplatin
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What drugs cause neurological problems?
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Vincristine, Taxanes, Cis-/Oxalo-platin
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What drugs cause cardiac problems?
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Doxrubicin, Trastuzumab
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What do you FOCUS on in Palliative care? Focus on the P
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Focus on patient goals and prognosis (PP)
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What interventions work to prevent cancer?
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1. tobacco cessation
2. diet 3.surgery (in heritable cancers) 4. Drugs to Prevent Cancer 5. Vaccines to Prevent Cancer |
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What are the drugs to prevent cancer:
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Finasteride: Prostate Cancer
Tamoxifen, Raloxifene: Breast Cancer |
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What are vaccines to prevent cancer:
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Hepatitis B: Hepatocellular Cancer
Papilloma Viruses: Cervical, Head and Neck Cancers |
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What are 3 definitely effective screens for cancer:
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Mammogram, PAP, colonoscopy
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Name to maybe useful screens:
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Chest CT in Smokers for Lung Cancer
– Liver Scan/AFP in HB/CV(+) for Hepatoma |
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What is the definition of a positive screen:
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Reduces Morbidity and Mortality of Screened Cancer, NOT Just Able to Find the Cancer at an Early Stage
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Staging vs Grading systems:
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Staging -TNM
Grading - morphological guidelines |
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Does Staging or grading have strong prognostic value?
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STAGING - STRONG
some - prognostic value, but little theraptutic value |
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Give me the real general stages for cancer:
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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 |
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Ped oncology has more of what kind of tumors that adult oncology and less of what?
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More Leukemias, less carcinomas
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Prediliction for Cancer in Children occur when?
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Growth spurts
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Do kids or adult cancers more associated with the enviroment?
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Kids are not associated with enviroment!
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How important is staging in pediatric cancers?
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NOT important!
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Is cancer more common in kids or adults?
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adults
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What long term health issues might survivors of cancer have to deal with?
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1. Increased risk of second cancers.
2. Long term side effects |
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What are the long term side effects of chemo:
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Heart Failure, Leukemia, Sensory Neuropathy, Renal Insufficiency, Sterility, Pulmonary Fibrosis, etc.
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What are the long term side effects of radiation:
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Dementia, Sarcomas, Leukemia, Growth Retardation, Dry Mouth, Strictures, etc.
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What are the long term side effects of surgery:
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Lymphedema, Malabsorption, Maintenance of Stomas, Dyspnea, etc.
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How can you explain differences in the incidence of cancer around the world?
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1. Differences in enviroment
2. Access to health care |
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Betel nuts cause cancer where?
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Asia, east Africa, tropical pacific
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Where is the Esophageal Cancer Belt?
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Caspian Sea to China
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Infections in two regions cause what kind of cancer via what assault?
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1. HepB, Hepatoma in Asia
2. EBV, Burkitt’s Lymphoma in Africa |
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Where is cervical cancer really problematic?
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Third world
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What pathologic changes do cells undergo as they transform from normal to cancer?
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Normal → Hyperplasia → Dysplasia → CIS → Invasion
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What does pleomorphic mean?
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change in size, and shape of cell
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Name 4 TS genes:
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TP53, APC, RB, BRAC1
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Name some oncogenes:
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sis–B Chain of PDGF
erb-2–HER2 EGFR KRAS, abl, src MYC, HOX |
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what are some of the normal functions of protooncogenes?
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Receptors, growth factors, intracellular signal transduction, nuclear TF
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sis–B Chain of PDGF is a ____ and what subtype?
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sis–B Chain of PDGF -
oncogene - Growth factor |
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How does HER2 and egfr work?
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obvi
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KRAS is an oncogene invovled in ____ and it does what?
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GTP ase
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Neoplasia means ___ and does not neccessarily refer to?
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new growth and does Not Necessarily Refer to Benign or Malignant
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what's the difference between carcinoma in situ and invasive cancer?
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spread
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Increase in Number of Cells is called?
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hyperplasia
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Transformation of One Cell Type Into Another is called?
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metaplasia
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Abnormal Development of Cells is called?
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dsyplasia
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