Medicine of the Future—The Transformation from Reactive to Proactive (P4) Medicine as presented at the Ohio State University Medical Center Personalized Health Care National Conference.
Leroy Hood, MD, PhD, is the president and founder of the Institute of Systems Biology. Dr. Hood is a member of the National Academy of Sciences, the American Philosophical Society, the American Academy of Arts and Sciences, the Institute of Medicine and the National Academy of Engineering. His professional career began at Caltech where he and his colleagues pioneered four instruments — the DNA gene sequencer and synthesizer and the protein synthesizer and sequencer — which comprise the technological foundation for contemporary molecular biology. In particular, the DNA sequencer played a crucial role in contributing to the successful mapping of the human genome during the 1990s.
http://www.systemsbiology.org/Scientists_and_Research
The Transformation to P4 Medicine - Predictive, Personalized, Preventive and Participatory
1. Medicine of the Future—The Transformation from Reactive to Proactive (P4) Medicine Predictive, Personalized, Preventive and Participatory Lee Hood Institute for Systems Biology, Seattle
9. Prion disease example: Prion Protein Exists in Two Forms Cellular PrP C PrP Genetic Mutations PrPSc Infections Spontaneous conversion Infectious PrP Sc
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11. Multiple groups: five inbred strains, two transgenic strains and one knockout strain Differentially Expressed Genes--DEGs--7400 to 333
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13. Neuropathological Features PrP accumulation Microglia / Astrocyte activation Synaptic Degeneration Normal Infected Nerve cell death
25. Presymptomatic Diagnosis of Murine Prion Disease with Organ-Specific Protein in Blood Samples 15/45 brain-specific blood proteins enabled early detection Clinical Signs at 18 wk Presymptomatic Diagnosis at 10 wk
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27. Technologies Will Create New Patient Data Spaces to be Explored and Will Greatly Expand the Old Patient Data Spaces
30. Study Families to Suppress Noise and Carry out Powerful New Genetic Analyses Unaffected parents Children with craniofacial malformation and lung disease Lynn Jorde and Michael Bamshad: family DNA—Sequencing by Complete Genomics, Inc
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32. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 X 65 crossovers in (2) male meioses (left) 104 crossovers in (2) female meioses (right) Recominational Genome Map from Miller’s Syndrome Children 0 50 100 150 200 250 x x x Both children inherited the same allele from both parents Each child inherited a different allele from each parent Children inherited the same allele from dad, different alleles from mom Children inherited the same allele from mom, different alleles from dad
34. DEAL for In vitro molecular diagnostics : Integrated nanotech/microfluidics platform Jim Heath, et al Organ 1 Organ 2 Tox response inflammation cells out 300 nanoliters of plasma Assay region Dynamic range--10 8 Sensitivity--high atmole 5 minute measurement
58. ISB’s Approach to P4 Medicine: Genetics and Environment integration is key to future medicine Tissue, Blood protein And stem cell Read-out Predictive, Personalized Diagnostics Genome Environment Disease & Health Complex biological Networks Systems Genetics
65. P4 MI Core Competencies Translational Science Social Sciences & Ethics Policy & Regulation Technology Higher Education Commercial Analysis P4MI Charter Members Healthcare Delivery Legal Consumer Behavior
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70. The P4 Medical Institute Through the ISB/OSU Strategic Partnership Could Play a Key Role in Accelerating the Emergence of P4 Medicine
71. Acknowledgements Prion--Institute for Systems Biology Daehee Hwang Inyoul Lee Hyuntae Yoo Eugene Yi (proteomics core facility) Bruz Ma r zolf (Affymetrix core facility) Nanotechnology-- J Heath, Caltech Luxembourg projects-- David Galas, ISB P4 Medical Institute —Fred Lee, David Galas, Diane Isonaka Prion--McLaughlin Research Institute Great Falls, Montana Ranjit Giri Douglas Spicer Rajeev Kumar Rose Pitstick Rebecca Young George A. Carlson
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Editor's Notes
Multiple comparisons are necessary To be useful as a general diagnostic, signature markers should not be mouse strain or prion strain specific and should not be induced in Prnp0 mice To make this work the amount of data acquired and analyzed is very large – most researchers underestimate this aspect of systems approaches.
There are four common features in the neuropathology of prion diseases. They are: Replication and accumulation of prion proteins Activation of microglia and astrocytes Degeneration of synapse And, cell death with spongiform phenotype. Ref: PrP accum – Canada CJD surveillance center ( http://www.phac-aspc.gc.ca/hcai-iamss/cjd-mcj/cjdss-ssmcj/07-eng.php ) M/A activation – UK CJD surveillance center ( http://www.cjd.ed.ac.uk/path.htm ) Synaptic Degeneration – mouse (ME7, F1 of BL6-VM/Dk) Johnston et al. (1997) Journal of Physiology (500.1:1-15) Nerve Cell Death - UK CJD surveillance center ( http://www.cjd.ed.ac.uk/path.htm )
Need to emphasize Lee H’s signal to noise issues for each of these points Need to emphasize Lee Hood’s signal to noise advantage We’re now in a position to do genetics the way it used to be done New technologies--coverage and error Variations/recombination--I.e. the unit is the pedigree, not just the genome (Jared’s point) Disease--use the inheritance patterns (consistency) to narrow down list of candidates The idea here is to emphasize what one can uniquely do for a family
Suttonian / Vriesian analysis figure. Just showing cross-over points and inheritance patterns now. It seems worthwhile at least indicating the locations of the centromeres. Also, the color-code can be better by showing the “intermediate phases (sea grean and dark blue) as divided blocks (one example given on top of chr 1).
This is a slide that lays out in a simple fashion the fundamental ideas.