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Viral Inhibition of the Anaphase-Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department of Biochemistry McGill University Montréal, Canada

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Page 1: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Viral Inhibition of the Anaphase-Promoting Complex/Cyclosome as a

Mechanism of Tumor-specific Cell Death

Jose G. Teodoro, Ph.DMcGill Cancer Center

Department of BiochemistryMcGill UniversityMontréal, Canada

Page 2: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Viruses as tools in the study of cell transformation and apoptosis

Page 3: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Viruses as tools in the study of cell transformation and apoptosis

Page 4: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 5: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 6: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Apoptin localizes in a transformation-dependent manner

Page 7: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 8: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Apoptin localization is regulated by a factor in transformed cells

Page 9: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Proteomic analysis of Apoptin-associated proteins

Page 10: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 11: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 12: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Subunit structure of the APC/C

Thornton et al.Genes & Dev (2006)

Page 13: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Apoptin induces destabilization of the APC/C

FPLC analysis

Page 14: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 15: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Apoptin colocalizes with APC/C within PML bodies

Page 16: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 17: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Apoptin colocalizes with APC/C within PML bodies

Page 18: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 19: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 20: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 21: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department
Page 22: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Tran et al. J Virol. 2007 Oct 17

Page 23: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Overview and future directions

How does G2/M arrest proceed to apoptosis?Do current chemotherapies rely on APC/C inhibition for efficacy?Can the APC/C be an anti-cancer drug target?

Page 24: Viral Inhibition of the Anaphase- Promoting Complex/Cyclosome as a Mechanism of Tumor-specific Cell Death Jose G. Teodoro, Ph.D McGill Cancer Center Department

Acknowledgements

McGill University

Isabelle GamacheMohamed MustafaRussell TowersSarah AssadianYiqing LuMichael Hell

U Mass

Michael GreenDestin HeilmanAlbert ParkerJulie Zhou

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QuickTime™ and aTIFF (Uncompressed) decompressor

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Reagents

Frank GrahamCrister Hoog