+ All Categories
Home > Health & Medicine > Mobilizing informational resources webinar

Mobilizing informational resources webinar

Date post: 13-Apr-2017
Category:
Upload: ann-marie-roche
View: 136 times
Download: 2 times
Share this document with a friend
30
Maria Shkrob, PhD, Project Manager, Elsevier Professional Services [email protected] May 19, 2016 Mobilizing informational resources for rare diseases When every piece matters
Transcript
Page 1: Mobilizing informational resources   webinar

Maria Shkrob, PhD, Project Manager, Elsevier Professional Services

[email protected]

May 19, 2016

Mobilizing informational resources for rare diseasesWhen every piece matters

Page 2: Mobilizing informational resources   webinar

| 2

Rare diseases – when every piece matters

Nick Sireau at TEDx ImperialCollege

https://www.youtube.com/watch?v=B4UnVlU5hAY

• No support

• No funding

• No treatments

is a UK charity that is building the rare disease community to raise awareness,

drive research and develop treatments.

is partnering with Findacure scientists to help identify and evaluate treatments

for congenital hypersinsulinism

• Patients community

• Collaboration with medical

researchers

• Drug repurposing candidate

• Fundraising

• Clinical Trial

Page 3: Mobilizing informational resources   webinar

| 3

• A rare genetic disease

• Permanently excessive level of insulinin the blood

• Develops within the first few days of life

• Can lead to brain injury or even death

• In the most severe cases the only viabletreatment is the removal of the pancreas,consigning the patient to a lifetime of diabetes

• Sirolimus showed promising results in CHI

Congenital hyperinsulinsm

https://res.cloudinary.com/indiegogo-media-prod-

cld/image/upload/c_limit,w_620/v1440424745/uzvnqz

hvbpsrtthzxqpu.jpg

How can we help?

Page 4: Mobilizing informational resources   webinar

| 4

Congenital hyperinsulinism library

In support of Findacure’s mission of education and knowledge sharing:

• Access to all Elsevier’s ScienceDirect full-text publications covering CHI

• Collection of papers focused on different aspects of CHI

• Collection of papers focused on effects of sirolimus on CHI

Page 5: Mobilizing informational resources   webinar

| 5

Why do we need literature?

PLACES PEOPLE GENES

DRUGS INTERACTIONSPROPERTIES

Page 6: Mobilizing informational resources   webinar

| 6

The power of processed content

PLACES PEOPLE GENES

DRUGS INTERACTIONSPROPERTIES

Data Extraction and Normalization

Databases and Tools

Page 7: Mobilizing informational resources   webinar

| 7

• CHI Library

• Disease, Target, Pathway, andCompound Analysis

• Research Landscape Analysis

Information Assets Applied

• Content

Elsevier’s vast set of literature and patent data

• Data normalization

Taxonomies and dictionaries to normalizeauthor names, institutions, drugs, targets, andother important terms

• Information extraction

Finding semantic relationships, targets,pathways, drugs, and bioactivities

Creating a comprehensive view of CHI with Elsevier

R&D Solutions

Page 8: Mobilizing informational resources   webinar

| 8

Research landscape analysis: connecting patients,

researchers and institutions

0 10 20 30 40 50 60 70

Stanley, C.A.

Hussain, K.

De Lonlay, P.

Rahier, J.

Ellard, S.

Flanagan, S.E.

Shyng, S.L.

Nihoul-Fekete, C.

Bellanne-Chantelot, C.

Robert, J.J.

Brunelle, F.

KEY AUTHORS

0 10 20 30 40 50 60 70 80

The Children's Hospital of Philadelphia

UCL Institute of Child Health

Hopital Necker Enfants Malades

University of Pennsylvania, School of…

UCL

Universite Paris Descartes

University of Pennsylvania

Cliniques Universitaires Saint-Luc,…

University of Exeter

Oregon Health and Science University

KEY INSTITUTIONS0 1 2

Ajinomoto CO., INC.

Arkray, INC.

Korea Research Institute…

ViviaBiotech, S.L.

Bassa, Babu V.

Commisariat a l'Energie…

Glaser, Benjamin

Kowa CO., LTD.

Kyowa Hakko Kogyo…

KEY PATENTS

• Most prolific authors and institutions,

based on full-text searching for terms and

synonyms

• Patent assignee names from Reaxys

Page 9: Mobilizing informational resources   webinar

| 9

Research landscape analysis: collaboration

• Network of people and organizations collaborating in CHI space based on

co-authorship

Page 10: Mobilizing informational resources   webinar

| 10

High level summary of full text publications

Tag cloud of titles and sentences discussing hyperinsulinism:

• Provides a very high level summary of a group of publications

• Gives overview of the terms and words being used when discussing the

disease

Sized by inversed document frequency (IDF),

colored by term frequency (TDF)Sized by relevance, colored by trend

Page 11: Mobilizing informational resources   webinar

| 11

Why text mining?

Amorphous information Structured information

Image Source: http://www.thesocialleader.com/wp-content/uploads/2011/03/paper-piles.jpg

Text mining: analyzing text to extract information that is useful for particular purposes

Text

mining

• Hard to deal with

• Hard to deal with algorithmically

• Not scalable

• Search

• Visualize

• Network analysis

• Scalable

• Compressed

20km

Page 12: Mobilizing informational resources   webinar

| 12

Elsevier Text Mining – Natural Language Processing

and deep taxonomy based indexing

~26M MedLine abstracts

~7M Elsevier and non-

Elsevier full texts

Grant applications

Dictionary

Taxonomy

Natural Language Processing

engine

MORE EFFECTIVE DOCUMENT SEARCH (CHI Library)

INFORMATION EXTRACTION (Summarization of Literature)

Page 13: Mobilizing informational resources   webinar

| 13

CHI: finding relevant documents for CHI library

Dictionaries and taxonomies for:• Proteins

• Small Molecules

• Diseases

• Clinical Parameters

• Organisms

• Biological Functions

• Anatomical Concepts

• Cell Lines

• Medical and Research Procedures

• External Factors

• Measurements

• Relations

Finding documents that mention CHI

Page 14: Mobilizing informational resources   webinar

| 14

• CHI in abstract or title

• CHI subtypes

• By publication type

• By study type

(including MeSH terms)

CHI: finding relevant documents

Indicate what to query

Filter by study type

Specify distanceFinding documents that mention certain

aspects of CHI

Page 15: Mobilizing informational resources   webinar

| 15

CHI: finding relevant documents

TERM1 VERB TERM2

Target ----------------- Disease

Small Molecule ----- Target

Small Molecule ----- Disease

Disease -------------- Biomarker

Protein --------------- Process

Output literature that discusses

the relation of interest

Finding documents that mention effects of

sirolimus on insulin sensitivity, production

and release

Page 16: Mobilizing informational resources   webinar

| 16

CHI: finding targets, drugs, and drug effects

"protein"

"terms for

genetic

variations"

"Persistent

Hyperinsulinemia

Hypoglycemia of Infancy"

Relevant Text Title AuthorsReference

DateDOI

ABCC8 mutation Persistent

Hyperinsulinemia

Hypoglycemia of Infancy

In the literature, nine genes have been reported to

be associated with CHI , with the most common

genetic causes of CHI being mutations in either

ABCC8 or KCNJ11 .

Successful treatment of a newborn

with congenital hyperinsulinism having

a novel heterozygous mutation in the

ABCC8 gene using subtotal

pancreatectomy

Yen C.-F, Huang C.-Y,

Chan C.-I, Hsu C.-H, Wang

N.-L, Wang T.-Y, Lin C.-L,

Ting W.-H.

2016 10.1016/j.

tcmj.2016

.04.001

ABCC8 loss of function

mutation

Persistent

Hyperinsulinemia

Hypoglycemia of Infancy

GOF and loss-of function mutations in KCNJ11

(Kir6.2) and ABCC8 (SUR1), which encode the

predominant KATP channel subunits in

pancreatic β-cells and in neurons, are now well-

understood to underlie neonatal diabetes and

congenital hyperinsulinism, respectively.

Adenosine Triphosphate-Sensitive

Potassium Currents in Heart Disease

and Cardioprotection

Nichols C.G. 2016 10.1016/j.

ccep.201

6.01.005

ATP-activated inward

rectifier potassium

channel

mutation Persistent

Hyperinsulinemia

Hypoglycemia of Infancy

The prevalence of KATP channel gene mutations,

diazoxide responsiveness, and rates for surgery

is broadly commensurate with other CHI cohorts.

Feeding Problems Are Persistent in

Children with Severe Congenital

Hyperinsulinism

Banerjee I, Forsythe L,

Skae M, Avatapalle HB,

Rigby L, Bowden LE,

Craigie R, Padidela R,

Ehtisham S, Patel L,

Cosgrove KE, Dunne MJ,

Clayton PE.

2016 10.3389/f

endo.201

6.00008

Extracting structured information from text

Standardized

names

Standardized

link

Evidence

Page 17: Mobilizing informational resources   webinar

| 17

CHI: summarization and visualization of the findings

• Visualization and summarization of

6.2 M literature findings

• Linking to non-literature sources

Page 18: Mobilizing informational resources   webinar

| 18

Building and refining the disease model

Picked relevant

pathways(from a collection of 1800 models)

Explored functions of

proteins using 6.2M pre-

text mined relations

and embedded Gene

Ontology

Summarized what is known

about CHI mechanism in an

overview model

Page 19: Mobilizing informational resources   webinar

| 19

CHI: Building and refining the disease model

Page 20: Mobilizing informational resources   webinar

| 20

From pathways to treatments:

PipelinePilot implementation combines data sourcesAutomated analysis combines bioassay data with text-mined data

Find all targets that could

be used to affect the

disease state

Query for each protein to find

compounds that target it (>6

log units)

Collate data by compound to summarize the

targets/activities related to disease that the

compound hits• Compute geometric mean of activities for ranking

• Rank by number of targets and geometric mean of

activities against targets

Step 1 Step 2Step 3

Page 21: Mobilizing informational resources   webinar

| 21

Automated analysis combines bioassay data with text-mined data

From pathways to treatments

• 88 targets related to

hyperinsulinism with ≥3

literature references

• Full relationship

information

Find all targets that could

be used to affect the

disease state

Step 1

Page 22: Mobilizing informational resources   webinar

| 22

Automated analysis combines bioassay data with text-mined data

From pathways to treatments:

Find all targets that could

be used to affect the

disease state

Query for each protein to find

compounds that target it (>6

log units)

Step 1 Step 2

Targets based on

text mining

Approved

compounds

Bioassay data

Page 23: Mobilizing informational resources   webinar

| 23

Automated analysis combines bioassay data with text-mined data

From pathways to treatments:

Mean of activities

among these targets

Mean of activities

among these targets

Targets and activities

for each compound

Drug-likeness

metrics for

sorting/classification

• All compounds that

were observed to bind

to targets in pathway

• Sorted by number of

active targets. Too many targets may

suggest lack of specificity.

Find all targets that could

be used to affect the

disease state

Query for each protein to find

compounds that target it (>6

log units)

Collate data by compound to summarize the

targets/activities related to disease that the

compound hits• Compute geometric mean of activities for ranking

• Rank by number of targets and geometric mean of

activities against targets

Step 1 Step 2Step 3

Page 24: Mobilizing informational resources   webinar

| 24

Approved compounds that may treat hyperinsulinism

• Each binds to one or

more targets related to

the disease

• Can easily be obtained

and tested in preclinical

studies

• List includes a

compound known to

treat hyperinsulinism,

sirolimus

Page 25: Mobilizing informational resources   webinar

| 25

From pathways to treatments:

PipelinePilot implementation output

Input:

“Congenital hyperinsulinism”

Output:• Table of target information

(PathwayStudio)

• Table of compounds with targets,

activities, and druglike parameters for

each compound

• SD file of compounds that may be

efficacious, with clinical status

• Authors, Affiliations, Collaboration map

• List of papers

Page 26: Mobilizing informational resources   webinar

| 26

Power of combining

pathway data with

experimentally verified

binding data

Results in testable

ideas

• Many compounds are

already approved drugs,

can be tested in in-vivo

experiments

Concepts can be extended

to find novel compounds

• Use modeling tools to extract

common frameworks

• SAR to optimize activity for

new indication

• Compare with compounds

suggested as treatments as

found by text mining

From pathways to treatments:

PipelinePilot implementation summary

Page 27: Mobilizing informational resources   webinar

| 27

Findacure: empowering patient groups and facilitating

treatment development

Parents:

• Learn more about the disease

• Find doctors and medical centers

Doctors:

• Learn more about the disease

• Explore case studies

• Collaborate

Researchers:

• Testable ideas for repurposing of generic drugs

• Knowledgebase to support the research of the disease

mechanisms

• Collaborate

Evidence to support 10 drug repurposing trials

Page 28: Mobilizing informational resources   webinar

| 28

• Used extensive Elsevier’s content, tools and capabilities to provide

information about a rare disease:

Text Mining to find targets and summarize what is known about the

disease mechanism

Bioactivity data to find drugs that target those targets

Normalized names of authors and institution to find collaborators

• Once the output of interest is decided, answer generation can be

automated:

Provide disease name and get:

List of targets with supporting information

Sorted list of approved drugs with supporting information

KOLs and institutes

Summary

Page 29: Mobilizing informational resources   webinar

| 29

Findacure / Elsevier collaboration

Dr Rick Thompson

Findacure

Dr Nicolas Sireau

Findacure

Dr Matthew Clark

Elsevier

Dr Maria Shkrob

Elsevier

Page 30: Mobilizing informational resources   webinar

Thank you

https://www.elsevier.com/solutions/professional-services


Recommended