3D optical microscopy methods, techniques, developments · 3D optical microscopy methods,...
Transcript of 3D optical microscopy methods, techniques, developments · 3D optical microscopy methods,...
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High Content 2019
6th Annual Conference
September 17th-19th, Boston, MA
Joseph B. Martin Conference Center
2019 SBI2 educational session
3D optical microscopymethods, techniques, developments
September 17th, 2019
Seungil Kim, Ph.D.Lawrence J. Ellison Institute for Transformative Medicine
University of Southern California
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Microscopic imaging
Seeing is believing
Seeing is understanding
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Outline
1.Biological models
2.Imaging methods
3.Considerations for 3D imaging
4.Technical development
5. 3D Image analysis
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Biomimetic model systems
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Cell Monolayer Trans-well Spheroids/
Organoids
Patient-derived
Xenograft (PDX)
Organ chips
2D 3D
In vitro In vivo
Complex Physiology (Relevance)Simple (Reproducibility)
High CostEasy (Maintenance)
Models
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3D organoids
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(1) Embryonic stem cell-derived organoids
(2) Adult stem cell-derived organoids
(3) iPSC-derived organoids
Drost J and Clever H (2018)
Nat. Rev. Cancer
• 3D growth (Organotypic)
• Genetic & Phenotypic features
• Genetic modification
• Matched normal controls
• Tissue-Stromal interactions
• Drug screening
• Biobanking
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Imaging can provide more information on phenotypic changes
3D imaging Drug response
Biochemical assay
Target-based
Enzyme
Receptors
Channels
Hormones…
Kinetics
Binding
Cell-based assay
Phenotype-based
Transcription
Protein expression
Cell viability
Proliferation…
MTT
Cell-Titer Glo
3D imaging
Spatial information
Cell and Organoids level
Microenvironment…
Immunostaining
Live imaging
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Biological imaging methods for 3D models
CLSM SDCM 2PM 3D-SIM SPIM/LSFM
Resolution High Moderate Moderate Highest Moderate
Z-range Limited Limited Longer than CLSM Longer than 2PM Longest
Scan speed Slow (Fast) Faster than CLSM Slow Slower than CLSM Fastest
Phototoxicity Highest Less than CLSM Less than CLSM Higher than CLSM Lowest
Confocal laser
scanning microscope2-photon microscope
3D-structural
illumination microscopeSpinning-disk confocal
microscope
Selective plane illumination microscope
/Light-sheet fluorescence microscope
Fischer RS et al. TRENDS in Cell Biology, 2011
Patterned
3D imaging
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Galvano-Resonant hybrid scanner can improve scan speed in CLSM
Galvano-Resonant Hybrid scanner
MicroscopyU
Galvano scan Resonant scan
Scanner type Galvano Resonant
Speed 4 fps (512x512) 30 fps (512x512)
Image quality High Low
Zoom 1x-1,000x 1.5x-8x
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Biological imaging methods for 3D modelsCLSM SPDC
LSFM
2-PM/FLIM
3D-SIM
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Considerations for 3D imaging
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1. Sample preparation
Section
FFPE Frozen
Histology (H&E) Immunostaining
Whole mount
PFAFormalin
Microtome Cryostat
Fixed Live
Cell
Organoids (+Gel matrix)
Tissue explant
3D reconstruction from serial images
• Tissue damage
• Missing parts
• Time consuming
• 3D imaging
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2. 3D Imaging depth
LED Laser
(1) Light Source
Gel thickness Height
(2) Sample thickness and Imaging direction
Upright
Inverted
(3) Plate bottom thickness and shape
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Tissue clearing can improve imaging depth
See Deep Brain (SeeDB)
No
Cle
arin
gC
lea
rin
g
Caspase3-Ecad-DAPI
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3. Plate format
Dish 96 well plate 384 well plate 1536 well plate
Hig
h-th
rou
gh
pu
t
Materials Chemical
Resistance
Binding Characteristics Applications
Glass High Very low
(Coating)
Hard, Clear, Flat Fluorescence,
High resolution
imaging
Polystyrene Low Low-High Hard, Clear ELISA, Fluorescence,
Luminescence
Polypropylene High Very low Soft, Opaque Storage, Fluorescence,
Luminescence
• Materials, Stiffness, Clearness
Shape, Surface area, Color
• Attachment, Cell density
Culture volume
• Evaporation, Edge effect
Pipetting error
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4. Labeling and Dyes
• Stable labeling but takes time
• Repeated addition
• Optimization
• Sequential scan, Far red dye
• Signal reduction
• Bleaching
• Toxicity
• Signal bleed through
BrightfieldTransient labeling: Dyes
• Nuclear/DNA - Hoechst, DRAQ5, Sir-DNA
• Cell - Cell tracker
• Organelles - Mitotracker, Lysotracker
• Cytoskeleton - Sir-actin, Sir-tubulin
• Live/Dead cells – Propidium iodide (PI), DRAQ7
Stable labeling: Lentiviral H2B-GFP/RFP, CRISPR
Brightfield + Dye
Fluorescence + DyeFluorescence
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5. Object resolution
Labeled (3D) Unlabeled (2D MIP)
H2B-GFP Brightfield, DRAQ7
High
Resolution
(Single cell)
High
Throughput
(Organoids)vs
Imaging speedCellular detailsImage processing
Data analysis
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Expansion microscopy can increase resolution and sample clearness
Chojinski TJ et. al., (2016) Nat. Method
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Super resolution microscopy can provide ultrastructural resolutions
3D-Photoactivated localization microscopy (3D-PALM)
/Stochastic optical reconstruction microscopy (STORM)
• Resolution <20nm, 50-100nm for STORM
• Proteins tagged with photoactivable fluorophores
• Cylindrical lens
• Limitation on the imaging speed
Interferometric Photoactivated localization
microscopy (iPALM)
• Axial resolution <20nm
• Samples up to ~300nm in thickness
• Technically complex
Fischer RS et al. TRENDS in Cell Biology, 2011
UCSF Huang Lab
HHMI/Janelia Hess Lab
Nan X. et. al. (2015)
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6. Temporal resolution
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6. Temporal resolution
Low temporal
resolutionHigh temporal
resolutionvs
Dynamic information
Kinetics, Tracking
Imaging time
Data size
Less
phototoxicityImage processing
Data analysis
Static time points Time lapse
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0 hour 4 hour
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Temporal resolutions in drug response5μ
M
5-F
U50μ
M
Irin
ote
can
Day1 Day3 Day4
Cytotoxic
Cytostatic
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Day1 Day3 Day4
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Technical development
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Autofocus and Z-drift correction (ZDC) for consistent imaging
Infra-red light
Plate bottomWell bottom
MicroscopyU
• Fixed position
• Sample signal-based
Sample in media
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Immersion objectives
Olympus
PerkinElmer
Water immersion objective
20x Air
NA=0.4
20x Water
NA=1.0
NA: Numerical aperture
• Resolution
• Z information
• Light detection
• Multi-area imaging
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Pre-scan for sample re-positioning
Trask OJ et. al., PerkinElmer
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3D targeted pre-scan to narrow down ROI
XY targeting
Z targeting
X
Y
X
Z
Y
Different ROI size (?)
Different Z range (?)
• Increases scan speed and accuracy
• Removes unnecessary scanning area (XYZ)
• Reduces file size
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3D Presci-scan reduces scan time and file size
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96 well plate, organoids in gel with 3 channels, 20x objective, 5µm z-step size, Bin 2
Gel height ~ 1,000µm
Organoids size 100-400 µm
5x Pre-scan
139 hrs 9 hours 2 hrScan time
Without PreciScan
63 FOV
100 planes/
500µm
4 FOV
With PreciScan in XY
100 planes/
500µm
With PreciScan in XY and Z
4 FOV
25 planes/
120µm
20x Re-scan (63 FOV)
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Presci-scan of 3D organoids
5x Pre-scan Fast analysis Select objects 20x Post-scan
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Light-field microscopy can image 3D samples faster
Prevedel R. et. al. (2014) Nat. Method
→ Computational deconvolution
3D wide field LFM
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3D Image analysis
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Imaging data analysis
Large scale batch analysis
Machine learning
Deep learning
Imaging dimension
Single cell vs. Object level
3D volumetric vs. 2D MIP
Multi-channel vs. BF
Determine
Assay parametersComputer scientists
Software
Imaging Image processing
Region of Interest
Cell/Organoids
tracking
Feature extraction
Cell No. Live/Dead
Area, Volume, Morphology
Data management
Data visualization
Statistics
Customization
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3D Image analysis software
Commercial Free open source
Easy to use
Performance
Established algorithms
Batch analysis
Limited flexibility
Cost
Training & Optimization
Flexible
Batch analysis
Free
Limited applications
Data format & Imports
MATLAB, Python, C++
Amira/Avizo
Volocity
Fiji-imageJ
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Imaris 3D data analysis-Tracking organoids
1. Upload multiple time points as a single file
T01 T02 T03
2. Organoid Surface
Detection
3. Individual Cell
Detection 4. Individual Organoid Tracking
5. Exporting Cell Counts &
Morphological Data 6. Generate Growth Curves
Growth rate vs. drug
concentration
T01 T02 T03
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High-throughput image analysis tools
Borten MA et. al., (2018), Sci. Rep.
- 4x objective 2x2 binning - EVOS 8-bit tiff
Organoseg OrgaQuant
Single plane
- 512x512 resolution
- Confocal pinhole at 500µm
- 4µs/pixel scan speed
- 6.4mm2 central area of well
CALYPSO
Kassis T. et. al., (2019) Sci. Rep. Bulin AL (2017) Sci. Rep.
Organoids
viability
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• How can we scale up?
- Different plate format → Different cell behaviors?
• Accuracy, Resolution vs. Throughput
• Assay validation
• Quality control
- Culture: Media/FBS, Passage number…
- Imaging: Controls, Temperature, Humidity…
- Analysis: Standard, Training set…
- Automation: Liquid handling, Integration…
Questions and further discussions?
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Acknowledgement
USC Ellison Institute
David Agus, MD
Shannon Mumenthaler, PhD
Dan Ruderman, PhD
Jerry Lee, PhD
Emma Fong, PhD
Sarah Choung
Katherin Patsch, PhD
Harish Sura
Carolina Garri, PhD
Roy Lau
Erin Spiller
Patrick Chiang, PhD
Collin Flinders, PhD
John Nicoll
Colleen Garvey
Carly Strelez
Sonya Liu
Danielle Hixon
USC-Olympus Innovation Partnership
in Multiscale Bioimaging
USC Translational Imaging Center
Scott Fraser, PhD
Thai Truong, PhD
Kevin Keomanee-Dizon
USC Norris Comprehensive
Cancer Center
Heinz-Josef Lenz, M.D., FACP
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Thanks!
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