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THE GENETIC OF CANCER Increased mitosisTumor formation Tumor suppression gene Hyperactive growth TranslocationPoint mutationAmplification Normal growth Proto-oncogene Normal protein Defective protein Normal cell division Uncontrolled cell division Excessive protein stimulation
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ROLES OF CANCER GENES IN CELL SIGNALING
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PROTO-ONCOGENES AND ONCOGENES Proto-oncogenes code for growth factors Mutations cause overproduction of growth factors Proto-oncogenes code for growth factor receptors Mutant receptor no longer requires growth factor binding Proto-oncogenes code for transcription factors Factors always bind to their target gene promotor Proto-oncogenes code for proteins that transmit external stimuli for cell division. Stimulation no longer needed
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TUMOR SUPPRESSOR GENES
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EFFECT OF CANCER GENES ON CELL CYCLE OncogenesTumor suppressor genes
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COMMON FORMS OF CANCER TREATMENT ChemotherapyRadiotherapySurgery May be used alone or in combination
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THERAPEUTIC TARGETS AGAINST CANCER CELLS Inactivation cell surface receptor Inhibition of angiogenesis Inhibition of metastasis Inactivation of receptor- associated G-proteins Inhibition of amplifying enzymes Inhibition of Rb protein Inhibition of p53 protein
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IMMUNOTHERAPY AGAINST CANCER CELLS Tumor cell with target antigen Antibodies against target antigen Binding to target receptor Complement activation Destruction by cytotoxic T cells
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MONOCLONAL ANTIBODIES AS RADIATION AND DRUG CARRIERS Monoclonal Antibodies as radiation carrier Monoclonal Antibodies as drug carrier Chemotherapeutic agentRadioactive label
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GENE THERAPY OF CANCER
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