cell death molecular mechanisms and
play

cell death: molecular mechanisms and applications in biotechnology - PowerPoint PPT Presentation

COST 844: Apoptosis and programmed cell death: molecular mechanisms and applications in biotechnology 2000-2005 Laszlo Fesus (Hungary) - Coordinator Boris Zhivotovsky Swedish National Coordinator FP5 Interplay among mitochondria and


  1. COST 844: “Apoptosis and programmed cell death: molecular mechanisms and applications in biotechnology” 2000-2005 Laszlo Fesus (Hungary) - Coordinator Boris Zhivotovsky Swedish National Coordinator

  2. FP5 Interplay among mitochondria and p53 family proteins during apoptosis induced by DNA damage – A new strategy for cancer therapy (Acronym: IMPALED – to kill with a sharp object) 2003-2005 COORDINATOR: Boris Zhivotovsky 1.1 M Euro

  3. This project aims to elucidate the mechanisms accounting for tumour cell resistance to death and to identify and verify the molecular targets responsible for resistance of tumour cells to DNA damaging drugs

  4. “Academic partners” -1-4, Karolinska Institutet, Sweden (Prof. Boris Zhivotovsky), Institute Gustave Roussy, France (Prof. Guido Kroemer), Weizmann Institute of Science, Israel (Prof. Moshe Oren), University of Rome Tor Vergata (Prof. Gerry Melino); “Clinical partner” – 5, Karolinska Hospital, Sweden (Prof. Rolf Lewensohn) and “Biotechnology company” -6, I EIRX Therapeutics Ltd, Ireland (Prof. Tom Cotter)

  5. Overall project layout WP2 Mechanism WP6 Nuclear-mitochondria of ROS production interaction in response to and its modulation treatment with DNA WP3 p53 and genomic in mitochondria of damaging agents instability DNA-damaged cells Contribution WP1 Cytoplasmic of p53 to effects of p53 and tumour regulation of its cell interaction with aneuploidy mitochondria Delineation of molecular Identification order bet- of novel Functional WP7 ween DNA nuclear compensation Microarray WP4 p63 and its Identification damage factor(s) among and role in DNA damage- of molecular mitochond- that interact p53 family bioinformatic induced cell death targets rial events with members analyses of in vitro and in vivo underlying p53 and oxida- mitochondria genes family related tive stress involved in cell death in apoptotic tumour cells pathways activated by WP5 p73 and its p53, p63 and role in DNA damaged- p73 induced apoptosis WP8 Molecular targets responsible for resistance of lung Induction of death in resistant tumour cells cancer cells to treatment

  6. FP5 Apoptosis pathways in cancer and AIDS 2004-2006 1.6 M Euro Sweden France Italy Germany Denmark

  7. Apoptosis pathways in cancer and AIDS

  8. FP6 Sensitization of (colon) cancer cells to death receptor related therapies Acronym: ONCODEATH (2006-2009) 2.1 M Euro Coordinator: Dr Alex Pintzas (Greece) Prof Boris Zhivotovsky (Sweden) - Responsible for basic research Partners: Dr Ladislav Andera (Czech Republic) – production of Ab Prof Jean-Claude Martinou (Geneva Switzerland) – Mitochondrial function Dr Spiros Linardopoulos (London U.K) - Cell cycle regulation Dr Sylvie Robine (Paris France) – Animal model Prof Paul Workman (Cancer Therapeutic Center, UK) - Clinical partner: Prof Juan Carlos Lacal (Madrid Spain) – Industrial partner Dr George Nasioulas (Athens Greece) - Diagnostic and Therapeutic Center

  9. Graphical presentation of the components showing their interdependencies

  10. Obtained results 1. Panel on new cell lines with up- and down-regulated colon cancer- related oncogenes. 2. Map of TRAIL-induced proximal signalling pathways per system. 3. Determinants of caspase-2 activation and Bax in TRAIL-induced apoptosis of tumour cells. 4. Assessment of a role of mitochondrial fission and fusion in TRAIL- mediated apoptosis. 5. Selection of PI3 kinase and Aurora inhibitors that cooperate with TRAIL in inducing apoptosis of colon cancer cells. 6. Assessment of sensitivity of tumours induced by activated oncogenes in transgenic mice and in mouse xenografts 7. List of apoptotic genes in response to individual oncogenic signalling in colon cells by microarray analysis 8. Validated sensitisation and resistant mechanisms in clinical samples

  11. FP6 Molecular mechanisms underlying chemotherapy resistance, therapeutic escape, efficacy and toxicity (2008-2013) 7 M Euro 18 partners from 9 countries

  12. APO ptosis SYS tems Biology Applied to Cancer and AIDS www.apo-sys.eu (2009-2012) 11 M Euro Boris Zhivotovsky Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden

  13. APO-SYS Consortium Partners: 23 laboratory groups from 12 different countries Basis: Extension of a 2006 Descartes Prize- winning EC Project “Apoptosis” and EC project on systems biology of cancer "ESBIC- D” plus new groups Involves: experimental biologists, biomedicine/translational medicine bioinformaticians, biomathematicians, biostatisticians and clinical scientists Combines: in silico systems biology, in vitro and in vivo model organisms experimentation clinical input - tissue samples from patients with cancer and AIDS

  14. Human disease can result from too much or too little apoptosis Homeostasis proliferation apoptosis excessive apoptosis defective apoptosis Cell loss Cell accumulation AIDS Cancer

  15. London Tube’s Map

  16. Modes of cell death  Apoptosis  Necrosis  Anoikis  Autophagic cell death  Excitotoxicity  Cornification  Wallerian degeneration  Mitotic catastrophe  Paraptosis  Pyroptosis  Mitoptosis  Senescence

  17. Cross-talk between different modes of cell death Death stimulus Mitotic + p53, + Chk2, catastrophe + caspase-2 ATP depletion, - p53, - Chk2, Caspase inhibition - caspase-2 Necrosis Apoptosis Bax -/- , Bak -/- , Autophagy Bcl-2 overexpression, Caspase inhibition Nec-1, Beclin-1 +/- , Bcl-2 overexpression

  18. APO-SYS Consortium The main Goal: To understand the basic cell biology of apoptosis and to transform this knowledge into computer models of the relevant biological processes and to translate the resulting knowledge to two major pathological conditions, namely cancer and AIDS

  19. APO-SYS Consortium Objectives:  create a unique database integrating existing and accumulating knowledge on lethal signal transduction pathways leading to apoptosis or non-apoptotic (necrotic, autophagic, mitotic) cell death;  perform data mining to integrate system-wide analyses on cell death (genome, epigenome, transcriptome, proteome, lipidome data);  use high-throughput methods for the experimental exploration of death pathways in human cell lines in vitro and in relevant disease models ( in vitro in human cells and in vivo in mice and Drosophila);  establish mathematical models of lethal pathways to devise algorithms that predict apoptosis susceptibility and resistance;  obtain data (genome, transcriptome, proteome, lipidome) on clinical samples (cancer cell lines, cancer tissues, and serum and blood samples) and perform biostatistical analyses on them in order to demonstrate the contribution of apoptotic process in human cancers and AIDS;  integrate the knowledge into mathematical models for the optimal interpretation of clinical data, aiming at optimal diagnostic and prognostic performance as well as at the identification of possible therapeutic targets for the treatment of cancer and AIDS.

  20. Signal transduction pathway Genome Apoptosis Non-apoptotic death Transcriptome Mathematical models Proteome of lethal pathways Disease Normal cells High-throughput methods for the Algorithms to predict experimental Clinical samples apoptosis exploration of death pathways sensitivity/resistance Human cells & Model organisms Biostatistical Clinical samples analysis Integration of knowledge on calculated pathways for the APO-SYS optimal interpretation of clinical data approach Optimal diagnostic and prognostic performance Identification of possible therapeutic targets

  21. Apoptosis pathways

  22. An experimental approach to target cancer therapy based on switches between cell deaths modalities Death stimuli Cell death pathways DNA damage ER-stress Death receptors Solid and Haematological tumors Proteome analysis and Identification of key molecules Death modality Calreticulin and the Immunogenic Non immunogenic surface molecules expression Death and/or immunogenicity switches Modulation of ”key molecules ”

  23. Therapeutic strategies based on modulation of apoptosis Bid FLIP Bcl-2 Smac/Diablo Hsps HtrA2/Omi IAPs Caspase-8 IAPs Caspase-2 Death Apop- Cyt. c Caspase-9 Caspase-3 tosome signal Hsp ? Hsp’s ?? Bcl-2 Hsp Hsp proteins Aven Bcl-2 Hsp’s Hsp AIF Endo G

  24. Regulatory networks of cell-fate decision Dynamical logical model of cell fate decision Mathematical modelling of cell-fate decision in response to death receptor engagement. PLoS Comput. Biol. 2010; 6 (3):e1000702. Clazzone L., Tournier L., Fourquet S., Thieffry D., Zhivotovsky B., Barillot E., Zinovyev A.

  25. Targeted Research Approaches  One gene – one cancer paradigm  Cancer is a systemic disease Key milestones to judge how much we understand the system  Understanding of structure of the system (gene regulatory and biochemical networks, as well as physical structure)  Understanding of dynamics of the system (quantitative and qualitative analysis, as well as construction of theory/model with powerful prediction capability)  Understanding of control methods of the system  Understanding of design methods of the system

  26. APO-SYS Consortium More than 500 publications The most successful project within FP7 in the field of Systems Biology

Recommend


More recommend