Session overview and session wrap up "Rare Disease Research and Drug Development", presentation "Data Translator for Fanconi Anemia"
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Fanconi Anemia Research Symposium 2017 Hoatlin
1. Rare Disease Research & Drug
Development
Session Overview
Maureen Hoatlin, PhD, MBA
Fanconi Anemia Research Fund
Annual Scientific Symposium
Atlanta, GA
September 2017
image credit: Max Ogden @denormalize
5. Data Integration method
Easy to aggregate data from diverse sources that may
differ widely in precision, accuracy and meaning.
Flexible! New information can be added without
affecting or being constrained by what is already there
Can test inferences can reveal hidden knowledge
https://goo.gl/q2K5Jx
6. Agenda
Christine Colvis, PhD The Translator Project: Turning
Biomedical Data Into Knowledge
Melissa Haendel, PhD Data Translator: an Open Science Data
Platform for Mechanistic Disease Discovery
Maureen Hoatlin A Data Translator for Fanconi Anemia
Jeff Siegel, MD Challenges and Opportunities in Rare Disease
Drug Development
7. A Data Translator for Fanconi
Anemia
image credit: Max Ogden @denormalize
Maureen Hoatlin, PhD, MBA
Fanconi Anemia Research Fund
Annual Scientific Symposium
Atlanta, GA
September 2017
9. Features of FA = Excellent Demonstrator
Complex phenotype
Many clinical and basic science questions
Lots of genes and variants
Multiple pathways, high complexity
Environmental exposure component
High unmet medical need
Clinical relevance to broader population
Incomplete data allows identification of gaps
Model for other rare diseases
10. Example: How do defects in FA and
Aldehyde pathways interact?
Requires:
Genes & variants for FA
Genes & variants for ALDH
Modifier variants
Medical record integration
Exposure history
12. Gene X
For 12 of the 26 Fanconi gene set, we found other genes with similar
regulatory regions (>300 total distinct).
What genes contain similar transcription factor
binding site ordering as those in the FA gene
set?
1 2 3
Gene Y
24
YES
NO
FA gene set (1/26)
TF Reg Elements
1 2 3Baseline
>>Demonstrates data analysis from multiple sources ( JASPAR
UCSC NCBI)
13. 20 Fanconi Anemia Genes
seed a network of:
3,058 interactions
972 genes
Fanconi Gene (FG)
FG -> FG Interaction
What proteins are in the Fanconi anemia
interaction network?
14. Result set seeded a network
of:
10,259 Interactions
3,585 Genes
Fanconi Gene (FG)
FG -> FG Interaction
Extended Fanconi Interaction Network
15. Gene Expression query
Find genes that, when knocked
down, induce gene-expression
changes similar to knockdowns
of FA core complex genes.
16. Experimental data underlying model
A B C D E
gene
change in
expression
perturbation
shRNA knockdown
(3553 genes total, 6 FA genes)
measurement
gene expression (Luminex)
(954 genes)
FANCA
Calculate intersections
and union of signatures
18. Future queries
What candidate modifier variants
should be examined in patients for
phenotypic correlation and then
functionally validated?
What compounds compensate for the
knock down of an FA gene?
19. Summary
First steps to building a Knowledge Graph for
Fanconi anemia --- inferences
The complexity in FA makes it an ideal
demonstrator project for Translator
Teams leverage Monarch etc., work together,
Open Science
New data can be incorporated as it becomes
available (e.g, drug screens, patient data).
20. www.probmods.org
PGM structure: encodes assumptions (only 14
parameters are needed)
conditional distributions: fit from experimental data
Example probabilistic graphical model (PGM) encoding
conditional dependence assumptions in model structure
21. Common mechanistic underpinnings of
rare & common/complex disease
Neutral
ALDH
KO: ?
Rare,
Detrimental
Common,
Subtle
Rare and/or
Beneficial
DetrimentalBeneficial
PopulationFrequency
Acetaldehyde
metabolism
mutations:
500 Million People
Affected Fanconi Anemia:
1 in 160,000
individuals
worldwide
ALDH2
OtherFANCgenes
23. Session wrap up & suggestions (including Salvo
La Rosas talk re NF Fndtn)
Incorporate open & team science methods
Shared data registries, curation and standardization needed
Consider unified long-term strategy like NF example encompassing
all phasesidea to treatment
FARF: gap analysis, set strategy, consider opportunity costs, allocate
funds where you want to go, locate expertise and partners
Explore leveraging Translator and other efforts at NIH/NCATS
including FA registry, natural history studies and curation
Partner/consult with experienced and willing experts at FDA and
drug development companies now, not later
What questions do you have that Translator might answer?
@hoatlinlab