Oncogenes and Onc-Gene Products Folder Title: Oncogene Updated: April 15, 2010 OncTitle
Dec 23, 2015
Examples of Oncogenic RNA Viruses(from Ruddon, 3rd Ed, Table 6.2)
Acute Transforming Viruses
Rous Sarcoma (non-defective) Chicken Sarcoma
Avian Erythroblastosis Chicken Leukemia
Avian Myeloblastosis Chicken Leukemia
Avian Myelocytomatosis Chicken
Abelson Leukemia Mouse Leukemia
Harvey Sarcoma Rat Sarcoma
Kirsten Sarcoma Rat Sarcoma
Feline Sarcoma Cat Sarcoma
Simian Sarcoma Monkey Sarcoma
RNAOnc1
Examples of Oncogenic RNA VirusesAcute Transforming Viruses
What Genetic Information Makes Them Oncogenic?
Rous Sarcoma Chicken Sarcoma
Avian Erythroblastosis Chicken Leukemia
Avian Myeloblastosis Chicken Leukemia
Avian Myelocytomatosis Chicken
Abelson Leukemia Mouse Leukemia
Harvey Sarcoma Rat Sarcoma
Kirsten Sarcoma Rat Sarcoma
Feline Sarcoma Cat Sarcoma
Simian Sarcoma Monkey Sarcoma
Extra GenesrcerbmybmycablHa-rasKi-rasfmssisRNAOncG1
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Site of Action of Onc-Gene Products
Nucleus• myc (N-myc, C-myc, L-
myc)• myb• fos• ski• jun• erb-AReceptor Tyr Kinases• erb-B (EGF Receptor)• erbB-2/neu (her-2/neu)• met• fms• kit• trkNon-receptor Tyr-Kinase• abl• src
Ser/Thr Kinases raf PKC (Protein Kinase C)GTP-Binding Proteins Ha-Ras N-Ras K-RasGrowth Factors sis int-2 hstOthers B-lym T-lym-1 bcl-1 (Cyclin D1) bcl-2
OncSite
Questions About V-Onc GenesAffecting the Biology of Cancer
• Where Does A Virus Get It From?• How Many Different V-Onc Genes Exist?• What Protein Does Each Code For?• What Do Those Proteins Do?• Where Do Those Proteins Do Their Thing?• Why Do They Cause Transformation?• How Do They Cause Transformation?• Do They Have a Normal function?• What Do They Tell Us About Neoplastic
Transformation Not Involving V-Onc Genes?OncQues1
Alternative Ways in Which Oncogenes Transform Cellular Gene Expression
• v-Onc Gene Insertion (Acutely Transforming Retrovirus)
• Activation of c-onc Genes (Sub-acutely transforming retroviruses and DNA viruses)
• Mutations in c-onc Genes
• Gene Rearrangements and Gene Fusions Involving c-Onc Genes
• Amplification of c-Onc GenesTransWay
Figure 4.2 (part 1 of 2) The Biology of Cancer (© Garland Science 2007) p. 96
Transfection of DNA from Transformed Cells into Normal Mouse Fibroblasts:
Figure 4.2 (part 2 of 2) The Biology of Cancer (© Garland Science 2007) p. 96
Determination of Transforming Ability of Transfected DNA Fragments
Figure 4.10 The Biology of Cancer (© Garland Science 2007)
Point Mutation Affecting Amino Acid 12 (Glycine) in H-RAS Gene Product in Human Bladder Cancer
In this picture, what is the purple stuff that is being administered to the normal mouse fibroblasts?You can identify it specifically or just generally.
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Figure 4.11b The Biology of Cancer (© Garland Science 2007) p. 107
Amplification of Endogenous c-Oncogene in Human Cancer:
N-Myc in Human Neuroblastoma.
Figure 4.15a The Biology of Cancer (© Garland Science 2007) p. 113
Translocation and Chromosome Fusion in the Activation of Endogeneous C-Oncogenes
Figure 4.15b The Biology of Cancer (© Garland Science 2007) p. 113
Fusion Oncoproteins in Human Malignancies; Bcr-Abl Fusion Proteins
C-Abl partCNL = Chronic neutrophilic leukemia
Questions About c-Onc GenesAffecting Prevention, Diagnosis, and
Treatment of Clinical Cancers• Can We Prevent Neoplastic Transformation
Based on Oncogene Effects?
• Can We Use Oncogene Expression for Diagnosis and Prognosis?
• Can We Tailor Existing Treatments Based on Oncogene Expression in a Patient?
• Can We Develop New Treatments Based on the Biochemistry of Oncogene Products?
OncQues2
c-Onc Genes Not Defined by V-Onc Gene Transfection from Virusesc-Onc Genes Perturbed by retrovirus integration
int-1 Mouse mammary tumor virusint-2 Mouse mammary tumor virusMLV1-1 Murine Leukemia Virus RatMLV1-2 Murine Leukemia Virus RatPim-1 Murine Leukemia Virus Rat
c-Onc Genes Detected by DNA TransfectionN-ras Neuroblastoma/leukemia/sarcomasB-lym B-cell lymphomamam Mammary carcinomasneu Neuroblastoma/glioblastoma
cOncFind