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01.12.2014
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© NCMM - Centre for Molecular Medicine Norway www.ncmm.uio.no
EATRIS – European Advanced
Translational Research
Infrastructure in Medicine
www.ncmm.uio.no 2
www.ncmm.uio.no 3 www.ncmm.uio.no 4
www.ncmm.uio.no 5 www.ncmm.uio.no 6
01.12.2014
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www.ncmm.uio.no 7 www.ncmm.uio.no 8
www.ncmm.uio.no 9 www.ncmm.uio.no 10
www.ncmm.uio.no 11 www.ncmm.uio.no
EATRIS i Norge
12
Nasjonal styringsgruppe
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www.ncmm.uio.no 13
European Infrastructure of Open
Screening Platforms for Chemical Biology
www.eu-openscreen.eu
EU-OPENSCREEN – Executive Summary February 2013
01/12/2014
Chemical Biology
X © HZI/F. Sasse
Investigation of biological systems using
chemical tools
MISSION
EU-OPENSCREEN’s objective is the development of novel research
‘tool’ compounds for all fields of the Life Sciences.
Tool compounds enable researchers to investigate molecular mechanisms of physiological
and pathological processes, many of which can only be studied with these chemical ‘tools’.
Chemical tools complement methods of molecular biology, such as mutagenesis or RNA
interference.
All generated tools and data will be made publically available to the scientific community.
EU-OPENSCREEN – Executive Summary February 2013 Page 16
Chemical compounds, such as this
small molecule, can bind to cellular
structures (e.g. proteins) and modulate
their functions.
Chemical keys for life’s locks
(Application in
cancer treatment)
Example:
STRATEGY
Chemistry Compounds
Biology Assays & Targets meets
Partner Sites
Screening Technology
Compound Profiling
Chemistry Services
Compound Management
EU-OPENSCREEN-ERIC
Compound Collection
Project Management
Database
Training & Education
User User
Activity
profiles
Tool
compounds
EU-OPENSCREEN complements existing resources and supports all
stages of the tool development project in an ‘open’ RI for external
researchers.
EU-OPENSCREEN – Executive Summary February 2013 Page 17
Service contract
Chemical Space
Adapted from Lipinski and Hopkins (2004) 432, 855-861
LOPAC & ACL & NIH & FMP 17/20T
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PROJECT PARTNERS
• NOR-OPENSCREEN
• Swedish Chemical Biology Consortium
• Drug Discovery and Chemical Biology
network Finnland
• Danish Chemical Biology Initiative
• Dutch Chemical Library Program
• ChemBioNet Germany
• POL-OPENSCREEN
• CZ-OPENSCREEN and Czech ChemGen
• Austrian PLACEBO
• Spanish ChemBioBank
• French Chimothèque Nationale,
PCBIS platform, FR-OPENSCREEN
• Romanian Chemical Biology Net
• Flemish Network on Chemical Biology
• Collezione Nazionale dei Composti Chimici e
Centro Screening
Current partners Associated members Coordination Centre at FMP Berlin
EU-OPENSCREEN builds on national networks in 16 European countries.
EU-OPENSCREEN – Executive Summary February 2013 Page 19 DRAFT EU-OPENSCREEN
Business Plan
Amsterdam, 20
November 2012
•Openscreen.no
• The Norwegian Chemical Biology Network, NOR-OPENSCREEN, is coordinated from UiO and includes units in Bergen, Trondheim and Tromsø: BiO/NOR-OPENSCREEN is the Norwegian partner in
University of Oslo: BiO & Chemical Synthesis and Medicinal Chemistry Group University of Bergen: Institute of Biomedicine SINTEF Materials and Chemistry Marbio/University of Tromsø: Polar Marine Bioprospecting Platform
© UiO/F. Saggio
NOR-OPENSCREEN/
ChemBioNet Norway
UiB
Marbio
SINTEF
UiO/BiO
01/12/2014
Chemical Biology Platform
@ Biotechnology Centre
Platform overview
The Chemical Biology High Throughput Screening platform was
established in 2008 as a service based facility
Permanent staff with continuous, solid competence in the field of chemical biology including HTS, assay development and robotics/automatisation
The facility is equipped with state-of-the-art automated screening instrumentation designed for Chemical Biology screening and to be used for both biochemical and cell based screening activities
The platform is part of the EU-OPENSCREEN, the European
Infrastructure of Open Screening Platforms for Chemical Biology
Strong Nordic collaboration
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Competence Technology Chemical Resources
In most cases user has developed an assay which has to be transferred to the platform. Examples of some assays/detection technologies AlphaScreen/AlphaLISA Enzymatic assays (absorbance/fluorescence readout) Fluoresence polarization Viability/cytotoxisity/apoptosis Calcium measurements/FLIPR Cell based assay-intracellular flow cytometry
Available a wide range of assays/ detection technologies
12/1/2014
Envision plate reader Filter and monochromator based detection, stacker, reagent injector for biochemical and cell based assays.
Detection platform
Molecular Devices FLIPR384 Fluorometric Imaging Plate Reader for simultaneous liquid transfer kinetic reading in 384-well plates. Cell based calcium, membrane potential and ion channel assays.
BIACORE T100 surface plasmon resonance based biosensor. Label free detection of interactions in real time.
Screening formats
96 well plate 384 well plate 1536 well plate
Reduce costs Use less reagents Faster throughput Less optimization than 1536
WORKFLOW
Detection readout
Compound administration 384 assay plates
384 compound plate
Adding assay reagents or cells to compounds
Incubation Data output
Data analysis
WORKFLOW
Detection readout
Compound administration 384 assay plates
384 compound plate
Adding assay reagents or cells to compounds
Incubation Data output
Data analysis
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Echo® Liquid Handler for Screening and OMICS -move liquid with sound
Sound waves eject precisely-sized droplets (2.5 nl) from the source liquid into a microplate.
does not use tips or nozzles—completely eliminating contact between the instrument and the liquid
Produce better-quality data, reduce costs and reagents for sample management and high-throughput plate preparation.
Enable transfer of chemical compounds, cDNA, siRNA vectors, AlphaLISA beads, proteins/Ab and crystallography reagents.
BiO chemical compound library
• ChemBioNet (17 000 compounds)
• Lopac (Library of Pharmacologically Active Compounds, 1280 compounds) )
• Prestwick (FDA approved, off-patent, 1280 compounds)
• Expansion with new compound collections (Enamine selection of 28500 compounds + Chembridge selection of 17000 compounds)
Diversity library of small moelcules collection
General purpose library for a broad range of targets
• Enriched for Potentially Bioactive Scaffolds
• Exhibit a high degree of chemical diversity
• ChemBioNet (17 000 cmpds)
• Enamine (28 500 cmpds)
• Chembridge (17 000 cmpds)
12/1/2014
‘
Target and Pathway specific collections
• Bioactive compound library (1650 cmpds, Selleck Chem)
• Tocriscreen Mini, selection of biologically active compounds (1120 cmpds, Tocris)
• Target and Pathway Libraries (477 cmpds, Enzo)
Oncology collections
• Cambridge Cancer Compound Library (384 cmpds, Selleck Chem)
• Access to FIMM collection of anti-cancer drugs
• Library of 1,280 pharmacologically active compounds • Well-characterized, high-purity compounds • Represents all major target classes
12/1/2014
Lopac1280
The Prestwick Chemical Library®
● 1,200 small molecules, 100% marketed off-patent drugs
Greatest possible degree of “drug-likeness”
“no strings attached” compounds
● Compounds selected for:
• high chemical diversity
• high pharmacological diversity
• known bioavailability
• safety in humans
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Lopac and Prestwick: New uses for existing drugs
Used for
• Assay validation
• Hit finding
• Drug repositioning
• Drug sensitivity screen
• Start of new optimization program
New or additional value is generated from a drug by targeting diseases other than those for which it was originally intended.
Project design Project flow
HTS screen Rescreen of hit
compounds Characterisation
of hits Secondary
screen Hit-to-lead
phase Lead
optimization
User/Project owner
Assay development
User/Project owner
Chemical Biology Platform
Medicinal Chemistry
Project design Project flow
HTS screen Rescreen of hit
compounds Characterisation
of hits Secondary
screen Hit-to-lead
phase Lead
optimization
User/Project owner
Assay development
User/Project owner
Chemical Biology Platform
Medicinal Chemistry
Targeting protein protein interactions (PPI)
• Contact surfaces of PPI are mostly large and flat -contain no well defined pockets for binding of small molecules.
• Hotspots – subsets of residues that contribute most of the free energy upon binding to a protein partner or a small moelcule
• Many PPI recognise an α-helix – develop small molecules with helical mimetic scaffolds
• Generally PPI inhibitors tend to be larger in Mw and more rigid than a "typical drug"
Assay development
• Large amount of soluble recombinant protein with different tags
• Test different protein combinations, swap tags
• Obtain a robust assay with robust signal to background ratios
• Titre down bead amount and volume to reduce costs
• Transfer the bench top assay to the automated liquid handling platform
The principle of AlphaScreen
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The principle of AlphaScreen
Output
Data analysis
HTS screening (AlphaScreen) Library: ChemBioNet, 17000 compounds
Incubate
Read
12/1/2014
FLIPR384 Fluorometric Imaging Plate Reader
Cell-based assays of receptor/ion channel-mediated signaling processes
Measuring membrane potential changes
Evaluating changes in intracellular calcium
Real-time analysis of whole-cell signaling events
Simultaneous fluid dispensing in 384 well plate Simultaneous measurements in 384 well plate
Range = ( -3000, 20000 )
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Mini Graphs
Zebrafish: a novel way of "fishing"
• Vertebrate model with fully sequenced, annotated genome • Strong genetic, physiological and pharmacological similarity to humans • High fecundity and small size (96-well format) • Rapid development ex utero • Optical transparency (non-invasive imaging) • Only mg amounts of compounds needed; readily absorbed (skin, GI tract, gills)
Chemical Neuroscience Group @ BiO
• Develop new disease models in zebrafish for
neurological disorders (current focus, epilepsy) to create:
• genetic epilepsy models
• provide functional genomics data to systems
biology projects
• chemically-induced seizure models
• Use chemical biology in zebrafish to elucidate the
molecular mechanisms involved in epilepsy to identify:
• therapeutic targets
• therapeutic molecules
• pharmacological tools
Chemical Neuroscience Program
Compound libraries Disease Models
Toxicity Mammalian Assays
Lead Optimization & Target Identification • Chemical synthesis • Affinity Chromatography • Chemoinformatics • Pharmacology • Pharmacokinetics • Electrophysiology
OR
Bioassays
0-5 5-10 10-15 15-20 20-25 25-300
25
50
75
100
125PTZ
VHC
1 mM valproate
*****
*
time (min)
%P
TZ-i
nd
uced
acti
vit
y