introduction to flow cytometry igc workshop april 27-30, 2010 general programme...
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Introduction to Flow Cytometry IGC Workshop
April 27-30, 2010
General Programme
Time Tutorial Room Speaker
Day 19h30-10h45 Fundamentals of Flow Cytometry Ionians Rui Gardner (IGC)
11h00-13h00 Policies and procedures when using the IGC FACS equipment FACS room Telma Lopes (IGC)
Day 29h30-10h45 Multicolor Analysis Ionians Rui Gardner (IGC)
11h00-13h00 Module 1 – Group 1Module 2 – Group 2 FACS room
Day 39h30-10h45 Applications in Flow Cytometry Ionians Rui Gardner (IMM)
11h00-13h00 Module 1 – Group 2Module 2 – Group 3 FACS room
Day 49h30-10h45 Cell Sorting Ionians Telma Lopes (IGC)
11h00-13h00 Module 1 – Group 3Module 2 – Group 1 FACS room
Module 1 – Cell Cycle Analysis using FACScan (Telma Lopes)Module 2 – Multicolor Analysis using CyAn ADP (Rui Gardner)
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What is Flow Cytometry?
Flow Cytometry uic
Fundamentals of Flow Cytometry
Rui GardnerIGC – April 27, 2010
Introduction to Flow Cytometry IGC Workshop
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Overview
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• Definitions: What is flow cytometry and what does it measure?
• Fluidics: Hydrodynamic focusing
• Optics: Light, fluorescence, emission and detection
• Electronics: pulse, data acquisition
• Analysis: Data handling
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Resources
Spectra Viewers:• http://www.bdbiosciences.com/spectra• http://probes.invitrogen.com/resources/spectraviewer• http://www.mcb.arizona.edu/ipc/fret/
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Tutorials:• http://probes.invitrogen.com/resources/education
Books:• Shapiro, H. “Practical Flow Cytometry”, 4ed, Online version.
http://probes.invitrogen.com/lit/practicalflowcytometry/toc.htmlhttp://www.coulterflow.com/
Purdue Univ. Cytometry Labs: all you need to know about Cytometry!• http://www.cyto.purdue.edu
History of Flow Cytometry:• Shapiro, H. (2007) “Cytometry and Cytometers: Development and Growth”,
in Flow Cytometry with Plant Cells (Eds, J. Dolezel, J. Greilhuber, J. Suda),WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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What is Flow Cytometry?
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Cytometry:Measurement of physical and chemical properties of cells.
Flow Cytometry:Characterization of cells flowing in a stream of fluid
FluidicsCells in suspensionflow in single file through
Opticsan illuminated volume where theyscatter light and emit fluorescencethat is filtered, collected and
Electronicsconverted to digital valuesthat are processed and analyzed in a computer
FACS: Fluorescence Activated Cell Sorting
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Key Advantages of Flow Cytometry
• Population data• Measure thousands of cells/particles per second• Measure multiple parameters simultaneously.
• Detection and sorting of extremely rare populations
• Cell sorting• High purity, speed, and yield.
0.02%
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Flow Cytometers
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FACSCaliburFACSscanFACSCantoLSR IICyAn ADPetc
FACSAriaMoFloFACS VantageEPICS ALTRAetc
Flow Cytometers
Analyzers High Speed Cell Sorters
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The Instrument
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Fluidics System
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Interrogation point
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Hydrodynamic Focusing
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More cells passper unit time
Less cells passper unit time
SheathFlow
SheathFlowSample
Flow
Laser
High Flow Rate
SheathFlow
SheathFlowSample
Flow
Laser
Low Flow Rate
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Flow Rate
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Low Flow Rate
Lase
r
Sheath
Sample
High Flow Rate
Lase
r
Sheath
Sample
100 101 102 103 104
FL2 Log Comp
0
776
1552
2328
3105
Counts
100 101 102 103 104
FL2 Log Comp
0
776
1552
2328
3105
Counts
100 101 102 103 104
FL2 Log Comp
0
776
1552
2328
3105
Counts
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Optics(Lasers)
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Lasers
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488 nm
Most common laser wavelengths available
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Optics(Scatter Light)
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Light Scatter
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Light is reflected towards all directions
Low angle: Forward Scatter (FSC)High angle: Side Scatter (SSC)
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Forward Scatter (FSC)
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The magnitude of Forward Scatter is roughly proportional to the size of the cell.
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Side Scatter (SSC)
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Side Scatter is caused by granulosity and structural complexity inside the cell.
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(2D) Scatter Plot
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Optics(Fluorescence)
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Fluorescence (1)
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Fluorophore Energy Levels
Low Energy
High Energy
Ground State
AbsorbedLight
Excited State
EmittedLight
Absortion
StokesShift
Emission
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Fluorescence (2)
Fluorophore
Absortion
StokesShift
Emission
Low Energy
High Energy
1
2
3
1
2
3
Lower Wavelength
Higher Frequency
Higher Energy
Higher Wavelength
Lower Frequency
Lower Energy
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Excitation Spectrum (1)
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Excited
480 nm 520 nm 550 nm 590 nm
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Excitation-Emission Spectrum (1)
Excitation max550 nm
Excitation
Emission
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Excitation - Emission
Excitation at different wavelengthsdecreases intensity of emission.
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Excitation-Emission Spectrum (2)
Emission maximaExcitation maxima
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Fluorescence Charts
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Fluorescence Spectra Viewers
Invitrogen (http:// www.invitrogen.com/spectraviewer)
BD Biosciences(http:// www.bdbiosciences.com/spectra)
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Optics(Fluorescent Markers)
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Reactive and Conjugated Probes
Cascade Blue Pacific Blue Pacific Orange Alexa DyesLucifer yellow NBD R-Phycoerythrin (PE) PE-Cy5 conjugates PE-Cy7 conjugates PE-Texas RedPerCP TruRed PerCP-Cy5.5 conjugateFluorescein (FITC)BODIPY-FL TRITC X-Rhodamine XRITCLissamine Rhodamine B Texas Red Allophycocyanin (APC) APC-Cy7 conjugatesEtc…
Immunohistochemistry
First dye-coupled antibody using fluorescein isothiocyanate (FITC) patented by Joseph Burckhalter and Robert Seiwald, in 1960
Direct method Indirect method
Pictures adapted from wikipedia
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Tandem Dyes
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PE-Alexa Fluor 700
PE-Cy5PE-TxRedPerCP-Cy5.5
PE-Cy7APC-Cy7
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DNA and Cell Function Probes
Calcium Membrane pH Cell Tracker DNA MitocondriaFura 2 FM 1-43 SNAFLE CMRA DAPI Nonyl Acridine O
Indo 1 FM 4-64 SNARF CMTPX HOECHST MitoSox
Bapta/dye DiO BCECF BMQC TOPRO3 Mitotracker
Calcium Green ANNINE 6 pHRodo DMFDA PI Rhodamine 123
Fluo 4 Di4ANNEPS hq lysosensor CMTMR DRAQ5 MitoProbe
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Fluorescent Proteins (1)
GFP was first noted by Shimomura et al., in the jelly fish Aequoria Victoria, in 1962 and cloned 30 years later
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Fluorescent Proteins (2)
San Diego beach scene drawn with living bacteria expressing 8 different colors of
fluorescent proteins
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What is Flow Cytometry?
Flow Cytometry uic
Introduction to Flow Cytometry IGC Workshop
Coffee Break…!