Data Visualization to Enhance our Understanding of the Cancer Genome
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Transcript of Data Visualization to Enhance our Understanding of the Cancer Genome
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Data Visualization to Enhance our Understanding of the Cancer Genome
HARVARD MEDICAL SCHOOL DEPARTMENT OF BIOMEDICAL INFORMATICS
NILS GEHLENBORG
@nils_gehlenborg http://gehlenborglab.org
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SAMUEL GRATZL JOHANNES KEPLER UNIVERSITY LINZ
ALEXANDER LEX UNIVERSITY OF UTAH
MARC STREIT JOHANNES KEPLER UNIVERSITY LINZ
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ROLE OF VISUALIZATION
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experiment
DATA
INSIGHT HYPOTHESIS
interpretation
hypothesis generation
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PUBLICATION
experiment
DATA
INSIGHT HYPOTHESIS
interpretation
hypothesis generation
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PUBLICATION
experiment
DATA
INSIGHT HYPOTHESIS
interpretation
hypothesis generation
PRESENTATION“Storytelling”
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experiment
DATA
INSIGHT HYPOTHESIS
interpretation
hypothesis generation
EXPLORATION“Pattern Discovery”
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experiment
DATA
INSIGHT HYPOTHESIS
interpretation
HYPOTHESIS
hypothesis generation
EXPLORATION
HYPOTHESIS-DRIVEN DISCOVERY
“Pattern Discovery”
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experiment
DATA
INSIGHT HYPOTHESIS
interpretation
DATA
hypothesis generation
EXPLORATION
DATA-DRIVEN DISCOVERY
“Pattern Discovery”
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The Cancer Genome Atlas
10,000+
genomes + clinical data + molecular data
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CANCER SUBTYPES
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mRNA expression microRNA expression
DNA methylation
protein expression
copy number variants mutation calls
clinical parameters
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mRNA expression - clustering
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C4C3C2C1
mRNA expression - clustering
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C4C3C2C1
mRNA expression
copy number variants
- clustering
- gene X
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C4C3C2C1
mRNA expression
copy number variants
DEL NORMAL AMP
- clustering
- gene X
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DEL NORMAL AMP
C4C3C2C1
mRNA expression
copy number variants
mutation calls
- clustering
- gene X
- gene Y
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DEL NORMAL AMP
C4C3C2C1
mRNA expression
copy number variants
mutation calls
WILDTYPEMUT
- clustering
- gene X
- gene Y
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DEL NORMAL AMP
C4C3C2C1
mRNA expression
copy number variants
mutation calls
WILDTYPEMUT
- clustering
- gene X
- gene Y
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DEL NORMAL AMP
C4C3C2C1
mRNA expression
copy number variants
mutation calls
WILDTYPEMUT
- clustering
- gene X
- gene Y
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ALGORITHMIC APPROACHES
VISUALIZATION APPROACHES
unsupervised clustering of multivariate data
integrated clustering across data types (e.g., Mo et al., PNAS, 2013)
correlation testing
integrative heatmaps
network-based stratification (Hofree et al., Nat Methods, 2014)
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Verhaak et al., Cancer Cell, 2010
Matrix Visualization: Publication Figure
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ALGORITHMIC APPROACHES
VISUALIZATION APPROACHES
unsupervised clustering of multivariate data
integrated clustering across data types (e.g., Mo et al., PNAS, 2013)
correlation testing
integrative heatmaps
network-based stratification (Hofree et al., Nat Methods, 2014)
genome browsers (UCSC Cancer Genomics Browser, IGV)
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Robinson et al., Nat Biotech, 2011
Genome-Centric Visualization: IGV
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PROBLEM 1
Visualize overlap of patient sets across two or more stratifications.
PROBLEM 2
Visualize characteristics of patient sets within a stratification of interest.
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A Lex, M Streit, H-J Schulz, C Partl, D Schmalstieg, PJ Park, N Gehlenborg, Comput Graph Forum, 2012 M Streit, A Lex, S Gratzl, C Partl, D Schmalstieg, H Pfister, PJ Park, N Gehlenborg, Nat Methods, 2014
Divide & Conquer Visualization: StratomeX
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PROBLEM 1
Visualize overlap of patient sets across two or more stratifications.
PROBLEM 2
Visualize characteristics of patient sets within a stratification of interest.
PROBLEM 3
Identify relevant stratifications, pathways, and clinical variables.
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Is there a mutation that overlaps with this mRNA cluster?
Is there a CNV that affects survival?
Is there a pathway that is enriched in this cluster?
Is there a mutually exclusive mutation?
Query
Stratifications Clinical Params
Pathways
GUIDED EXPLORATION
M Streit, A Lex, S Gratzl, C Partl, D Schmalstieg, H Pfister, PJ Park, N Gehlenborg, Nat Methods, 2014
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Query
Rank
VisualizeStratifications
Clinical Params Pathways
GUIDED EXPLORATION
M Streit, A Lex, S Gratzl, C Partl, D Schmalstieg, H Pfister, PJ Park, N Gehlenborg, Nat Methods, 2014
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AND NOW WHAT?
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DATA-DRIVEN DISCOVERY
experiment
DATA
INSIGHT HYPOTHESIS
interpretation
DATA
hypothesis generation
EXPLORATION“Pattern Discovery”
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DATA-DRIVEN DISCOVERY
PUBLICATION
experiment
DATA
INSIGHT HYPOTHESIS
interpretation
DATA
hypothesis generation
EXPLORATION
PRESENTATION“Storytelling”
“Pattern Discovery”
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
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finding figure/videoAuthoringExploration Presentation
DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
finding figure/videoAuthoringExploration Presentation
Current Model
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
finding figure/videoAuthoringExploration PresentationWhat we show.
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
finding figure/videoAuthoringExploration Presentation
What we tell.
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
finding figure/videoAuthoringExploration Presentation
What we did.
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
track provenance
annotate observations
make sense of observations
tell the story
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
Capture
Label
Understand
Explain
track provenance
annotate observations
make sense of observations
tell the story
C
L
U
E
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CLUE
vistories
Authoring
Exploration Presentation
DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
CLUE Model
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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Exploration
Authoring
Presentation
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VISTORY = visual story + historyDo collaborative data analysis.
Use during peer-review.
Publish with a paper.
Embed in a presentation.
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
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DATA-DRIVEN DISCOVERY
DATA-DRIVEN COMMUNICATION
http://vistories.orgDemos and prototypes built with
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We are hiring postdocs & developers!
HARVARD MEDICAL SCHOOL DEPARTMENT OF BIOMEDICAL INFORMATICS
See http://gehlenborglab.org or http://dbmi.med.harvard.edu for details.
Data visualization, analysis, and management for: • genomic structural variants • dynamics of the 3D genome • cancer subtypes in patient cohorts • exploration tools for data repositories • provenance graphs