CNSV-1410-Vacca - bswd. · PDF file• Blood! • Components!of!blood! ... ©...
Transcript of CNSV-1410-Vacca - bswd. · PDF file• Blood! • Components!of!blood! ... ©...
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Human Cell Analysis The Technology Behind The World’s Most Common Diagnos8c Test
IEEE-‐CNSV – November 4, 2014
Giacomo Vacca, Ph.D. Founder & President Kine?c River Corp.
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OVERVIEW
• Blood • Components of blood • Blood diagnos?cs • Coun?ng blood cells • Principles of flow cytometry • Flow cytometry systems • Flow cytometry system
architecture • Developing flow cytometers
If there’s 8me… • Flow cytometry data analysis • Disrup?ve innova?ons
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Giacomo Vacca, Ph.D. • Kine8c River (President) • BeamWise (CSO) • AbboT Labs (Res. Fellow) • Picarro • Lightwave Micro • Exxon Research & Engr. • 28 patents issued/pending
© Abbott Laboratories
© Picarro
© GEN
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BLOOD
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© Newsurg
What Is It About Blood?
© buzzfeed.com
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Blood
© thinkhealthypz.blogspot.com
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6 Quarts
© thinkhealthypz.blogspot.com
© cliparts101.com
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© CC BY 3.0
© Newsurg
It’s In Your Blood…
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COMPONENTS OF BLOOD
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White Blood Cells (WBCs)
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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WBCs (aka Leukocytes)
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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WBC Facts • typical adult: ~ 30,000,000,000 (30 billion) WBCs • ~ 5 x 103 / uL • ~ 5 – 15 um in size • 3 major subtypes – lymphocytes – monocytes – granulocytes
• all have nucleus • part of body’s immune system: detect, recognize, fight invaders
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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Platelets (aka Thrombocytes)
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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Platelet Facts • typical adult: ~ 150,000,000,000 (150 billion) platelets • ~ 250 x 103 / uL • ~ 2 – 3 um in size • not actually “cells” – splintered fragments of precursors: megakaryocytes
• aggregate to stop bruising and bleeding
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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Red Blood Cells (RBCs)
© Annie Cavanagh, Wellcome Images
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RBCs (aka Erythrocytes)
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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RBCs
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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RBC Facts • typical adult: ~ 30,000,000,000,000 (30 trillion) RBCs • 3 million RBCs produced per second • 120 days life?me • ~ 5 x 106 / uL • ~ 45% of blood by volume • ~ 5 um in size • characteris?c biconcave shape • no nucleus! “hemoglobin bags” • carry O2 from lungs to ?ssues, carry back CO2
http://www.zahniser.net/~russell/science08/MrZ/blood.png
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The Three Amigos
© NCI Frederick
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BLOOD DIAGNOSTICS
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Blood-‐Based Diagnos?cs
© James Anness/The Record, via The Associated Press
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Blood-‐Based Laboratory Diagnos?cs • Cell assays
– Complete Blood Count (CBC) – hematocrit – hemoglobin – WBC differen?al – platelet count – immature RBCs – …
• Plasma assays – glucose – electrolytes – lipids – blood gases – proteins – enzymes – …
• Other diagnos?c assays – molecular diagnos?cs – blood typing – DNA sequencing – …
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Blood-‐Based Laboratory Diagnos?cs • Cell assays
– Complete Blood Count (CBC) – hematocrit – hemoglobin – WBC differen?al – platelet count – immature RBCs – …
• Plasma assays – glucose – electrolytes – lipids – blood gases – proteins – enzymes – …
• Other diagnos?c assays – molecular diagnos?cs – blood typing – DNA sequencing
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Blood-‐Based Diagnos?cs
© Sysmex
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Complete Blood Count (CBC)
© Sysmex
• ~ 200 million CBCs / yr worldwide • CBCs used for diagnosis of:
– general health (screening) – anemia (low RBCs, small RBCs, low hemoglobin concentra?on) – bacterial infec?on (high WBCs) – drug toxicity (low platelets) – leukemia (increased subtypes of WBCs) – allergy (increased subtype of WBCs)
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COUNTING BLOOD CELLS
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Blood Smears
© GreatScopes © Frederick Wasti
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Blood Smears
© Frederick Wasti
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Blood Smears
© pdbio325.blogspot.com
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Hemocytometer: Manual Coun?ng
© wetnf.org © Hausser Scientific
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Par?cle Sizing: The Coulter Principle
© Pulver Technology © Beckman Coulter
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Cell Iden?fica?on: Flow Cytometry
© Physikalisch-Technische Bundesanstalt
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PRINCIPLES OF FLOW CYTOMETRY
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The Op?cal “Bench:” Cri?cal Elements
© Life Tech
light source(s)
flow cell
forward-‐scaTer detector(s)
fluorescence detector(s)
side-‐scaTer detector(s)
spectral filters
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Hydrodynamic Focusing
© 2011 Life Tech
core stream speed at nozzle: ~ 1 mm/s
core stream speed in flowcell: ~ 10,000 mm/s
core stream
sheath
core stream flow rate: ~ 1 µL/s
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Flowcell: Where It All Comes Together
© Nihon Kohden
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Cell Interroga?on: Rela?ve Sizes
10 um
~20 um
~70 um
1/e2 laser beam waist
© Life Tech
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Par?cle Detec?on: ScaTering Signal
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Forward ScaTering Histogram
© Life Tech
© Life Tech
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Side ScaTering Histogram
© Life Tech
© Life Tech
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Building the 2-‐D ScaTergram
©Life Tech
side scaTer
forward scaTer
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Two Methods: ScaTering & Fluorescence • ScaTering: mainly hematology analysis FC – cell size – morphology (shape of cell and nucleus) – complexity (presence of crystals, granules)
• Fluorescence: mainly non-‐hematology FC – DNA, RNA staining – surface an?gens (immune system)
• e.g.: CD4+ lymphocytes for HIV monitoring
– intracellular biomarkers
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Two Methods: ScaTering & Fluorescence • ScaTering: mainly hematology analysis FC – cell size – morphology (shape of cell and nucleus) – complexity (presence of crystals, granules)
• Fluorescence: mainly non-‐hematology FC – DNA, RNA staining – surface an?gens (immune system)
• e.g.: CD4+ lymphocytes for HIV monitoring
– intracellular biomarkers
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This Seminar: ScaTering, Hematology • ScaTering: mainly hematology analysis FC – cell size – morphology (shape of cell and nucleus) – complexity (presence of crystals, granules)
• Fluorescence: mainly non-‐hematology FC – DNA, RNA staining – surface an?gens (immune system)
• e.g.: CD4+ lymphocytes for HIV monitoring
– intracellular biomarkers
$3B/yr
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FLOW CYTOMETRY SYSTEMS
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From Very Small…
Courtesy of Peter Kiesel, PARC
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…To Very Large
© Academia Sinica
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Hematology Analyzer Examples
© Beckman Coulter
© ABX
© Abbott Laboratories
© Orphee
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Flow Cytometer Examples
© Beckman Coulter
© BD
© Partec / Sysmex
© EMD Millipore
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FLOW CYTOMETRY SYSTEM ARCHITECTURE
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Flow Cytometer HW Modules
© 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
sample
reagents
waste sample, reagents
© 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
autoloader (op?onal)
aspira?on
incuba?on (op?onal)
fluidics/ pneuma?cs
flowcell
fluidics/pneuma?cs
© 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
flowcell
excita?on
collec?on
op?cs © 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
signal processing
algorithms, database,
UI
embedded control
electronics
© 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
Laboratory Informa8on
System (op8onal)
Laboratory Automa8on System (op8onal)
© 2014 Kinetic River Corp.
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Flow Cytometer HW Modules
sample, reagents fluidics/pneuma?cs op?cs electronics
liquids photons data controls
© 2014 Kinetic River Corp.
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DEVELOPING FLOW CYTOMETERS
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Flow Cytometers Are Complex Systems • e.g.: Kine?c River’s Danube FC • op?cs, microfluidics, control SW: KRC • fluidic management • electronics • signal processing
PARTNERS
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Kine?c River Key Exper?se
Life Sciences & Diagnos?cs
System Design
Microfluidics 2D / 3D CAD
Op?cs
LiveIdeas™
BeamWise™ © Abbott Laboratories
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Flow Cytometer HW Modules
sample, reagents fluidics/pneuma?cs op?cs electronics
liquids photons data controls
© 2014 Kinetic River Corp.
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Kine?c River Core Competencies
sample, reagents microfluidics op?cs signal processing
liquids photons data controls
© 2014 Kinetic River Corp.
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Partner Core Competencies
sample, reagents fluidics/pneuma?cs op?cs electronics
liquids photons data controls
© 2014 Kinetic River Corp.
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RESOURCES, Q&A
• Flow cytometry tutorials at www.lifetechnologies.com • www.wikipedia.org • Purdue University PPTs • “Prac8cal Flow Cytometry”, 4th ed., H.M. Shapiro
– also online at www.Prac?calFlowCytometry.com
• “Flow Cytometry: An Introduc8on”, M.G. Ormerod – also online at www.flowbook.denovososware.com
• GVacca@Kine?cRiver.com