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Nu GO Nutrigenomics: a new way of nutritional sciences.

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Presentation on theme: "Nu GO Nutrigenomics: a new way of nutritional sciences."— Presentation transcript:

1 Nu GO Nutrigenomics: a new way of nutritional sciences.
Un Oslo Un Munich Un Florence Un Balearic Illes Un Cork Trinity Un. Ulster Rowett Un Newcastle Un Reading IFR DiFE Un Krakow Inserm Marseille TNO Un Wageningen Un Maastricht EBI Nu GO Un Lund Rikilt Rivm The EU Network of Excellence establishing the European NutriGenomics Organisation Nutrigenomics: a new way of nutritional sciences. the European Nutrigenomics Organisation

2 Mission Statement virtual centre of excellence:
NuGO will form a world-leading virtual centre of excellence: the European Nutrigenomics Organisation to develop and integrate genomic technologies for the benefit of European nutritional science, to facilitate the application of these technologies, and to train a new generation of European scientists to use them. the European Nutrigenomics Organisation

3 1. The nutrition and health relationship
the European Nutrigenomics Organisation

4 well-being age Nutrigenomics: prevention instead of therapy!
What are the specific nutrition needs in earlier life stages to prevent chronic disease? Prevention (food) Therapy (drugs) age Adapted from Verrips et al, Cur.op.biotech. 12 (2001) the European Nutrigenomics Organisation

5 Treatment of early Type 2 Diabetes will have an enormous impact on Health Care :
For real prevention, we need to act here, where multiple minor changes can only be captured throuhg “omics” approaches At the time of diagnosis Patients have lost 50% of their β-cell function β-cell Function in % 100 75 50 25 Eye –Retinopathy Kidney –Nephropathy Nerves –Neuropathy Heart disease Loss of Homeostasis Systemic disease IGT Postprandial Hyperglycemia Type 2 Diabetes Phase I Type 2 Diabetes Phase II Type 2 Diabetes Phase III -8 -2 2 8 14 Years from diagnosis Lebovitz, Diabetes Rev., 1999

6 “old age disorders” and nutrition
Obesity & related disorders Diabetes Cardiovascular Diseases Osteoporosis Many forms of cancer (e.g. 60% of colon cancers) Inflammatory disorders (e.g. arthritis) Liver disorders Various bowel disorders Etc. the European Nutrigenomics Organisation

7 New approaches needed …
To get nutrition research to merge physiology and biomedical research To work on disease prevention instead of therapy (which doesn`t work for nutrition) To tackle the complex genetic differences involved in the nutrition and health relationship the European Nutrigenomics Organisation

8 2. From nutrition to nutritional systems biology
the European Nutrigenomics Organisation

9 It’s revolution in biological sciences.
And it should also be so in Nutrition … Gene enzyme Hexokinase ATP ADP glucose Glucose-6-phosphate Metabolism the European Nutrigenomics Organisation

10 What about the effect of a big apple pie with lots of
doublewhipped cream, espresso & sugar? What about the difference between you and me? hexokinase ATP ADP Glucose Glucose-6-phosphate the European Nutrigenomics Organisation

11 the technologies ... proteomics DNA array (transcriptomics)
341 368; ENOA_HUMAN 376; ENOA_HUMAN 407; ENOA_HUMAN 592; KCRB_HUMAN 730; ER60_HUMAN 765 798 902; TCTP_HUMAN 958; GTA1_HUMAN 1277; COF1_HUMAN 807 1035 1088; NDKA_HUMAN 1294; FABL_HUMAN 824 447; CH60 HUMAN 537 76; CH60_HUMAN 800; TPIS_HUMAN 1297; thioredoxin 31; HSP70 g-actin b-actin AOP-1 154; ATP-synthetase b-subunit 23; GRP-78 705; Rho GDP 99; Probable disulfide isomerase 914; Natural killer cell enhancing factor 4 5 6 7 66 97 45 30 20.1 14.4 pI Mr 272; GR78 HUMAN proteomics 10 15 20 25 30 35 40 45 50 55 9 7 6 5 4 3 13 12 11 8 2 1 metabolomics the European Nutrigenomics Organisation

12 How to approach these issue?
The example of cholesterol homeostasis the European Nutrigenomics Organisation

13 Example of systems biology approach
1) Induce disease with cholesterol in ApoE3L High Chol diet Low Chol diet Control diet Statin Fibrate LXR AT2 R antagonist 2) All used drugs have anti-atherosclerotic activity but act via different mechanisms. Specifically interfere in the HC-driven development of the disease the European Nutrigenomics Organisation

14 Mode of action of drugs used
LXR-activators (T ) Statins (Rosuvastatin) AT2R-antagonist (Irsebertan) Fibrates (Fenofibrate) blocks angiotensin II receptor inhibits HMG-Co reductase Activates PPARa Activates LXRa/b Increases HDL-Chol Stimulates FA uptake and metabolism; stimulates reverse cholesterol pathway Anti-inflammatory: in liver and aorta NFkB; AP-1; Stat3 stimulates reverse cholesterol pathway and bile acid synthesis anti-inflammatory in aorta: (MMPs, COX-2, IL-6) Lowers LDL-Chol; anti-inflammatory in liver and aorta: NFkB, AP-1; (VCAM,TNFa, MCP-1) Lowers blood pressure; anti-inflammatoy NFkB (NADP(H) oxidase) the European Nutrigenomics Organisation

15 Systems Biology: a dynamic approach
Atherosclerosis model: APOE*3-Leiden Endpoint: organs Disease Development Groups: 1: Control diet 2: High cholesterol (HC) 3: HC + PPARa-activator (FF) 4: HC + Statin 5: HC + LXR-agonist 6: HC + AT2R-antagonist 7: Low cholesterol Over time: plasma samples CLASSICAL ‘Non-OMICS’: Score atherosclerosis Follow plasma markers (TG, Chol, SAA, …) the European Nutrigenomics Organisation

16 Atherosclerosis model:
Systems Biology: a dynamic approach Atherosclerosis model: APOE*3-Leiden Endpoint: organs Disease Development Groups: 1: Control diet 2: High cholesterol (HC) 3: HC + PPARa-activator (FF) 4: HC + Statin 5: HC + LXR-agonist 6: HC + AT2R-antagonist 7: Low cholesterol Over time: plasma samples CLASSICAL ‘Non-OMICS’: Score atherosclerosis Follow plasma markers (TG, Chol, SAA, …) METABOLOMICS: LC-MS the European Nutrigenomics Organisation

17 Atherosclerosis model:
Systems Biology: a dynamic approach GENOMICS: Affymetrix total genome array Atherosclerosis model: APOE*3-Leiden Statin Fibrate LXR AT2 R antagonist LOW CHOL Control Endpoint: organs High CHOL Disease Development Overlap: crucial pathways contributing to disease development Groups: 1: Control diet 2: High cholesterol (HC) 3: HC + PPARa-activator (FF) 4: HC + Statin 5: HC + LXR-agonist 6: HC + AT2R-antagonist 7: Low cholesterol Over time: plasma samples CLASSICAL ‘No-OMICS’: Score atherosclerosis Follow plasma markers (TG, Chol, SAA, …) METABOLOMICS: LC-MS the European Nutrigenomics Organisation

18 Metabolomics: Example of a base peak chromatogram obtained by analysis of plasma by the LC-MS lipid platform

19 Example of selected ion chromatograms of several triglycerides

20 Treatment-specific changes (MVA) of plasma lipids
FF HC Statin control LC AT2R 20 40 60 80 100 Heparine-plasma + IS 14.64 14.60 15.13 9.81 7.53 15.35 11.70 9.84 19.40 9.45 19.53 14.19 18.98 7.26 7.19 20.01 15.62 7.65 16.31 10.19 16.84 9.23 8.38 7.04 18.81 20.18 13.40 11.26 8.67 6.77 18.57 20.67 17.21 12.99 21.30 22.76 23.69 24.40 5.30 6.43 14.67 NL: 4.28E6 Base Peak MS ee346176 LXR the European Nutrigenomics Organisation

21 Genes of high interest in the processes involved –
Now in their biochemical perspective

22 Role of ZNF202 in atherosclerosis: driver of pre-inflammatory processes

23 SREBP: Key factor in regulation of cholesterol synthesis
insulin INSIG2 ER srebf2 SCAP SREBP HMG CoA reductase Ubiquitinat. Proteas.degradation Golgi acetyl CoA carboxylase Genes for synthesis of cholesterol, fatty acids, triglycerides, phospholipids Fatty acid synthase LDL receptor SREBP: Key factor in regulation of cholesterol synthesis (the Goldstein & Brown scheme) WH, 17 february, 2005

24 A correlation network, based on statistically selected variables (RNA, protein, metabolite)
Node indicates closely regulated part Box indicates type, up/down Line indicates relation the European Nutrigenomics Organisation

25 Cellular regulatory influence diagrams.
Each gene group is represented by its number, along with those ontology labels that are overrepresented in that gene group. The mean level of gene group output influences across all 12 target groups is plotted versus the time step.

26 Cartographic representation of the metabolic network of E. coli.
Each circle represents a module and is coloured according to the KEGG pathway classification of the metabolites it contains. Interactions between modules and nodes are depicted using lines, with thickness proportional to the number of actual links. Inset: metabolic network of E. coli, which contains 473 metabolites and 574 links. the European Nutrigenomics Organisation

27 Lessons: Merge of physiology and biomedical research
Big machinery needed Bioinformatics essential Complexity of nutrition needs systems biology Early effects need careful description Multidisciplinary approach – datawarehousing? the European Nutrigenomics Organisation

28 The future of Nutrigenomics?
brainwash Nutrition Nutrigenomics 2004 2005 2006 200X 20XX the European Nutrigenomics Organisation

29 The future of Nutrigenomics?
“pure science” Nutritional systems biology Nutrigenomics science commerce communication ethics (science) Personalised nutrition 2004 2005 2006 200X 20XX the European Nutrigenomics Organisation

30 3. From nutrition to personalised nutrition
the European Nutrigenomics Organisation

31 How to approach these issue?
The example of cholesterol homeostasis the European Nutrigenomics Organisation

32 Effects of genetic differences on the processes invovled in cholesterol homeostasis
Genetic polymorphism affecting cholesterol homeostasis Processes involved in cholesterol homeostasis the European Nutrigenomics Organisation

33 Many differences in the gene exist between humans
Leptin is a protein that tells my brain that I have enough calories Identical mice, except for one gene… SNPs present in the LEPTIN gene Many differences in the gene exist between humans the European Nutrigenomics Organisation

34 the European Nutrigenomics Organisation

35 the European Nutrigenomics Organisation

36 whole-genome patterns of common human DNA variation by genotyping 1,586,383 SNPs
the European Nutrigenomics Organisation

37 Pathological: medical genetics
How to study this genetic component of the nutrition and health relationship? Pathological: medical genetics Minor impact genes: genetic epidemiology (cohorts) More minor impact genes: cohort merging Multiple minor impact genes (real life): new approach needed (modelling?) the European Nutrigenomics Organisation

38 Nutrigenomics on the shelves?
the European Nutrigenomics Organisation

39 The nutrigenomics data challenge
Enormous amounts of data and results are and will become available [Genetic epidemiology, cohort studies, SNP databases, intervention studies, omics data, etc.] So, we should set up a system to better exploit this: one day, all study data should be available for all nutrition scientists, allowing them (us) to perform “in silico nutritional systems biology” Advanced information technology: the Nutrigenomics Information Portal the European Nutrigenomics Organisation

40 Nu GO the European Nutrigenomics Organisation Un Oslo Un Munich
Un Florence Un Balearic Illes Un Cork Trinity Un. Ulster Rowett Un Newcastle Un Reading IFR DiFE Un Krakow Inserm Marseille TNO Un Wageningen Un Maastricht EBI Nu GO Un Lund Rikilt Rivm the European Nutrigenomics Organisation

41 central datawarehouse
Nu GO Un Oslo Rowett Un. Ulster Un Newcastle Un Lund Trinity DiFE Un Cork EBI IFR Rivm Rikilt TNO Un Reading Un Wageningen Un Maastricht Un Krakow Un Munich Inserm Marseille Un Florence central datawarehouse Un Balearic Illes the European Nutrigenomics Organisation

42 Federated Database the European Nutrigenomics Organisation

43 The key issues: Enormous amounts or data and results
Standardisation of data formats Federation of databases Merging of available studies Perform new studies (partly) based on existing data. the European Nutrigenomics Organisation

44 4. Let`s collaborate and shape this area together.
The big lesson 4. Let`s collaborate and shape this area together. the European Nutrigenomics Organisation

45 The biomed to nutrition brainwash
Multiple targets, usually with low affinity – systems biology needed Prevention, not therapy – new biomarkers needed No disease genes but many minor SNPs – new approach, large numbers No tradition – brainwash needed No big money – collaboration needed Tox based safety assessment – systems biology needed the European Nutrigenomics Organisation

46 Nu GO Nutrigenomics: a new way of nutritional sciences.
Un Oslo Un Munich Un Florence Un Balearic Illes Un Cork Trinity Un. Ulster Rowett Un Newcastle Un Reading IFR DiFE Un Krakow Inserm Marseille TNO Un Wageningen Un Maastricht EBI Nu GO Un Lund Rikilt Rivm The EU Network of Excellence establishing the European NutriGenomics Organisation Nutrigenomics: a new way of nutritional sciences. the European Nutrigenomics Organisation

47 How? Grant for integration – 17.23 ME
No IP barriers – contract signed by all partners, thus all activities and knowledge of all partners can be shared. Standardization of methods, facilities (e.g. joint Affymetrix platform). Joint Research Activities: Staff exchange, shift in research topics, etc Joint information systems Joint data storage (European Bioinformatics Institute). the European Nutrigenomics Organisation

48 How (2)? Joint bioinformatics Joint training
Merging 6 obesity & metabolic health cohorts Linking to funding opportunities Leading global efforts on nutrigenomics (e.g. metabolomics database) Etc, etc. the European Nutrigenomics Organisation

49 The current NuGO structure
Three main areas: Joint research Integration Spreading excellence - Gut Health - Metabolic health - Early life nutrition - Risk Benefit analysis - Standardisation Innovation Human studies Animal models Bioinformatics Information systems & databases - Training Communication Society Commercialisation the European Nutrigenomics Organisation

50 The integration process
Year 1 Setting the stage Year 2 Implement Year 3 Integrate Year 4 onwards Reshape Research: - who does what? - what can we do together? - what are facility and technology needs Integration - what do we have? - what do we need? - what do others need? Research: - form small functional teams - develop key emerging areas - drive technology developments Integration - standardise / share technology - new bioinformatics - data / protocol standards the European Nutrigenomics Organisation

51 Research themes and groups
Lipid metabolism Life stage nutrition Risk Benefit analysis Metabolic health Proliferation Differentiation Apoptosis Inflammation Muscle insulin resistance Nutrigenetics Early biomarkers Periconceptual nutrition Nuclear transcription factors Systems biology Host-microbe interaction Gut Health Absorption Genetic epidemiology Toxicogenomics Metabolic stress Adipocyte fat oxidation Diabetes II Carotenoids the European Nutrigenomics Organisation

52 Where does the money come from?
Partner budget (non-EU money, >150 m€) Grant for integration (EU money, 17.3 m€) Partner 1 3 2 The grant for integration only pays for a small part of the total budget involved in the consortium nutrgenomics activities (the “integrating activities”) the European Nutrigenomics Organisation

53 The world is bigger than Europe...
Un Oslo Rowett Un. Ulster Un Newcastle Un Lund Trinity DiFE Un Cork EBI IFR Rivm Rikilt TNO Un Reading Un Wageningen Un Maastricht Un Krakow Nu GO Un Munich Inserm Marseille Un Florence Un Balearic Illes the European Nutrigenomics Organisation

54 It started small … Dutch Center of Human Nutrigenomics
(established in 2000 by 9 Dutch universities and research institutes) the European Nutrigenomics Organisation

55 So, do you want to join…? In changing this dream into a vision into reality? In establishing a new way of doing nutritional science? In making this a global effort? In taking your share in developing this? NuGO is happy to collaborate with anyone who takes this challenge seriously, since there is a lot of work to be done! the European Nutrigenomics Organisation


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