typhoon - nhri
TRANSCRIPT
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1 /GE /
May 10, 2010
Typhoon -A Versatile Imaging System
產品專員 李宗樹奇異亞洲醫療設備股份有限公司
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Typhoon OverviewApplications- Radioisotopic (Macroarrays)- Chemiluminescence (Westerns)- Fluorescence (Protein, DNA, Multi-Color)
Technical Summary
Advantages
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Typhoon Applications
Chemiluminescent
Radioactive
by label/detection
Fluorescent
Colorimetric
Non-radioactive
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Typhoon Applicationsby image analysis
2D
GFP
Microarray
Microplateanalysis
Differentialdisplay
1D gel/blot
BiotechBiotech
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Typhoon storage phosphor imaging
Storage phosphor detection of radioactivity
> 3H, 125I, 14C, 35S, 33P, 32P, 18F, 99mTc, etc.
The proven storage phosphor capabilities
> Limit of Detection (LOD): 2 dpm/mm2 for 14C> Linear Range: 5 orders with <7.5% std. dev.> Uniformity: + 5% over entire scan area
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Storage Phosphor - How it worksBaFBr: Eu+2phosphor at ground state
BaFBr - : Eu+3phosphor absorbs x-rays, a, b or g
BaFBr: Eu+2 *excited F-centre absorbs red laser light to enter unstable state
BaFBr: Eu+2phosphor returns to ground stateEmitting Europium luminescence
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Different from film exposureFilm- Not quantitative- Only one copy of the data, not
digital - Low dynamic range
Screen- Quantitative- Save time: 1/5 to 1/10
exposure than film- High dynamic range• Use Image Eraser to erase
Image• DO NOT use detergent on it
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ChemiluminescenceDirect imaging and quantification without exposures to films or screens
Chemiluminescence - Westerns •ECL•ECL Plus•SuperSignal West Femto•SuperSignal West Dura•CDPstar
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Typhoonchemiluminescence modehigh sensitivity
Hyperfilm ECL (PDSI)1 minute exposure
Typhoon ApplicationsECL Plus westerns
Fluorescent Westerns
•Enzyme-amplified>ECF (Enhanced Chemifluorescence)>DDAO Phosphate
•Direct>Cy3>Cy5
Typhoon Applications
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Gel separation
Gel transferring
Blocking
1st Ab binding
2nd HRP Ab binding
ECL develop
Film or CCD detect
Gel separation
Gel transferring
Blocking
1st Ab binding
2nd ECL Plex Ab binding
*Fluorescent Scan
ECL PlexGeneral WB
532/526532/526SPSP
Tubulin detected inrat brain homogenate
Western ApplicationsECF
DDAO Phosphate633/670633/670BP30BP30
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532/580532/580BP30BP30
Tubulin detected inrat brain homogenate
Western ApplicationsCy3
Cy5633/670633/670BP30BP30
Western Applications
Cy3 & Cy5 Dual Target Western
Cy3 (green) - actinCy5 (red) - tubulin
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DNA Gel Stains
•Ethidium bromide•Vistra Green•SYBR® Green I•SYBR® Gold
Typhoon Applications
(532/610(532/610DF30)DF30)
DNA Mass LadderDNA Mass Ladder
DNA Gel Stain ApplicationsEtBr
SYBR Green I(532/526(532/526SP)SP)
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SYBR Green I•agarose •384(96x4)PCRs/scan•front end to high throughput capillary sequencing
•Courtesy ART - Sunnyvale
DNA Gel Stain Applications
Differential Display Analysis
lung
liver
lung
liver
lung
liver
Rat Liver and Lung cDNA labeled Cy5 and electrophoresed on a 6% denaturing polyacrylamide gel.
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PicoGreenDNA Gel Stain Applications
532/526SP
PicoGreen - DNA Solution QuantitationLOD = 10 ng/mlLinearity = 200-fold
R2 = 0.9972
0
200
400
600
800
1000
0 500 1000
DNA (ng/ml)
Fluo
resc
ence
Lambda DNA
Protein Gel Stains
•SYPRO Orange•SYPRO Red•SYPRO Ruby (2-D gels)•DeepPurple
Typhoon Applications
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Protein Stain Applications
532/610BP30
SYPRO Red
SYPRO Red Linearity
R2 = 0.9982
0.E+005.E+051.E+062.E+062.E+063.E+063.E+064.E+064.E+06
0 500 1000 1500
[BSA] (ng per band)
Fluo
resc
ence
BSA Protein
Protein Stain Applications
532/610BP30
SYPRO Ruby2-DSYPRO Ruby 1-D
Carrot Seed ProteinProtein Mass Ladder
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Fluorescent Covalent DNA LabelsPolyacrylamide Gels
•Fluorescein/FAM•HEX, TAMRA, ROX•Cy3, Cy5
Typhoon Applications
Covalent DNA Labels Applications
•Agarose gel•+3 mm plane•Genomic
mapping•3-color:
>FAM (blue)>HEX (green)>ROX (red)
Mapping
(Courtesy Laurie Gordon, LLNL, Livermore, CA, USA)
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•Mnt repressor protein•180bp end-labeled operator DNA fragment•Sandwich gel•4-color: FAM (green), HEX (red), TAMRA (blue) and ROX (yellow)• FluorSep processed(Courtesy Chris Man, WashU, St Louis, MO, USA)
Gel Shift Assay
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Microarray
•Corning slide spotted with cDNAfrom APB ScoreCard control and cloned cDNA from Incyte Genomics
•Hybridized with 25pmoles of Cy3 and Cy5 labelled mRNA:
•Liver - Cy5
•Skeletal Muscle - Cy3
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Challenges for 2D electrophoresis
n Sensitivity (CBB)
n Linear Dynamic Range (CBB、Silver)
n Reproducibility (Gel-to-gel variation)
n Accuracy (Statistics needed)
n Consumption (Gels, time, samples)
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Presentation of the problem
6 gels made from the same sample, run in parallel (SYPRO Ruby)
Nice guy
Bad guy
Jörgen Östling, AstraZeneca R&D Mölndal, Sweden. June 2004
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Advantage of fluorescent detection:increased dynamic range
3-D plots of same spot areas on gel
2-D DIGE
Silver staining
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Measuring induced biological change
Differences due to disease state, drug treatment, life cycle stage
Induced biological change - what we want to measure
System variation
(gel-to-gel variation)
Experimental factorsDifferences in IEF/SDS-PAGE conditionsGel distortionsuser-to-user variation
Data analysisuser-specific editing and interpretation
Inherent biological variation
Intrinsic differences that occur within populationseg animal-to-animal, plant-to-plant or culture-to-culture, subjected to identical conditions
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Difference gel electrophoresis (DIGE)
Internal standard and 2 samples per gel
2-D DIGE using an internal standard
Cy5Cy3Cy2Standard Sample 1 Sample 2
Gel A
Cy2Standard
Cy3Sample 3
Cy5Sample 4
Gel B
Cy2Standard
Cy3Sample 5
Cy5Sample 6
Gel C
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2-D DIGE: internal standardizationSample 2 Sample 1
Gel A
Sample 3 Sample 4
Gel B
Standard (Cy2)
Standard (CyTM2)
Virtual elimination of gel variation: induced biological change with statistical accuracy capable of revealing differences in abundance of less than 10% between samples
Without internal standard
With internal standard
(Cy3)
(Cy5)
(Cy5)
(Cy3)
Normalisation of spots between gels
Not normalised to standard Normalised to standard1.79-fold with greater than 99.9% t-test confidence.
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1 color 2D vs. DIGE -Number of gels
2-D DIGE/internal std/DeCyderTM 1 colour 2-D
8 samples
2 samples per gel = 4 gels
x 3 biological replicates
0 gel replicates
= 12 gels total
= 6 runs by SE600
or 2 runs by DALTsix
= 6 days (3 days/run)
8 samples
1 sample per gel = 8 gels
x 3 biological replicates
x 3 gel replicates
= 72 gels total
= 36 runs by SE600
or 12 runs by DALTsix
= 36 days (3 days/run)
Benefits of Ettan™ DIGE
Reduce number of gels
Reduce hands on time
Reduce amount of sample required
Ensure accurate quantification of differences in protein abundance through the use of an internal standard
Increase the number of real hits*)
*) Friedman et al. Proteomics 2004; 4(3): 783-811
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DIGE paper reference
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Typhoon Overview
Applications> Radioisotopic (Macroarrays)> Chemiluminescence (Westerns)> Fluorescence (Protein, DNA, Multi-Color)
Technical SummaryAdvantages
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Typhoon – Versatility• Sample Requirement:
• Fluorescence (633nm, 532nm, 488nm)• Radioactive• Chemiluminescence samples
• Gels and sandwich gels• Blotting membranes• Macroarray and microarray chips• Micro-plates• Tissue sections (not in situ)• Radio-TLC & X-Ray diffraction
• Large format: 43 x 35 cm maximum
• Scans mounted & un-mounted screens• Most screens even from other suppliers
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Typhoon - Sensitivity• Optical Design:
• Confocal optics• 25, 50, 100, 200, 500, 1000 µm pixels• 5 log dynamic range• Twin PMT’s, one is cooled• Objective changer 0 & +3mm
• Emission and excitation:• 6 std emission filters, total 13 filter seats• 3 std beam splitters 560, 580nm & 630nm• 2 excitations 532nm (green laser) & 633nm (red laser)• Blue laser is optional
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Typhoon excitation & collection
Lens
532nm
633nmShut
ter
Asse
mbl
y
Scan Head
LaserLine Filter
FocusingOptics
Objective LensChanger Assembly
PMT & Filter Changer Assembly
PMT
1PM
T 2
Glass Platen
Gel
B/S
Focu
sing
Lens
Focu
sing
Lens
Mirrors
Lens 1
Colli
mat
ing
Lens
Lens 2
B/S B/S
Emis
sion
Filte
rsConfocal optics
Dual excitation
Dual emission
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Sample
Glass platen
Excitation Laser
Objective
Collection Lens
Fiber Optic Cable
Z-Plane MirrorLaser reflection filter
Advantages of Confocal Optics• Rejection of Scatter• Flat Field• Focus Control
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Galvonometer
Laser
Sample Tray
f-Theta Lens
Galvo Mirror
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Galvanometer scanning - Distortion problemGalvanometer
Typhoon
Two problems
1. Very obvious flaring of the high activity samples
2. Distortion of wells
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Typhoon Scan Setup• Focal Depth
> “Platen” setting– default for storage phosphor– choice for membranes, thin gels on platen
> “+ 3mm” (3 +/- 0.5mm above platen surface)– thick agarose gels– microplates– polyacrylamide sandwich gels
platen (support)
gel
Typhoon
3mm
free gel
(glass plate)
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Emission filters
Filter Fluorophore520DF30 ECL Plus, Cy2
526SP Fluorescein, FAM, SYBR, ECF, PicoGreen555DF20 TET, HEX, R-6G
560LP Multiple fluors (single channel scans)580DF30 Cy3, HEX, TAMRA, SYPRO Orange610DF30 ROX, C-X-R, SYPRO Red/Ruby, EtBr670DF30 Cy5
Emission filter assembly for custom filters is available 63-003399
* 520DF30 is optional filer
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Technical Manual: Fluorescence Imaging
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Excitation & Emission
575LP Filter
Emission Filter:
- The more is the better
- More specific is more better
Typhoon 580BP30
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768 384 192 96 48 24 12 6 3 1.5 0.8 ng
All three laser lines offer same sensitivity for SYPRO Ruby- stained 1D protein gel
Pixel Size: 200µm; PMT: 550V; Focal Depth: Platen
Excitation: 457 nm Emission: 610BP30
Excitation: 532 nmEmission: 610BP30
S/N > 3
Excitation: 488 nmEmission: 610BP30
SYPRO Ruby
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Thanks for your attention