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2013 Duke CFAR Flow Cytometry Workshop. Data Analysis. Results from Pre-Workshop Analysis Comp Profile. Results from Pre-Workshop Analysis. Results from Pre-Workshop Analysis. Results from Pre-Workshop Analysis. Results from Pre-Workshop Analysis. Elements of Data Analysis.
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2013 Duke CFAR Flow Cytometry Workshop Data Analysis
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
C (3.1%) B (3.4%) J (4.8%) A (6.8%) K (9.4%) D (10.2%) H (10.2%) F (10.5%) G (16.9%) I (12.7%) E (13.4%) • Here labs are listed in order of their total TNFa response. It is visually apparent that, while all labs had overcompensation, it is worst in labs with the lowest cytokine responses.
JO Analysis Modified comp FlowJo A700-PCPCy5.5 = 6 & PCPCy5.5-PEA610 = 235 JO Analysis Autocomp FlowJo A700-PCPCy5.5 = 29.32 JO Analysis Modified comp FlowJo A700-PCPCy5.5 = 6 Inaccurate Automated Compensation:Requirement for Manual Adjustment HM analysis Diva (Lab J) CD28 PCP-Cy5.5 CD3 A700 Note: Green laser excitation for both PerCPCy5.5 & PEA610
Compensation: Inspect and Manually Correct as Needed Auto Manually adjusted PE-PEA610 = 12.87 PE-PEA610 = 11
“Corrected” Matrix (Auto-comp w/ Manual tweaking) Original vs Manually-tweaked FlowJo Compensation Values Original Matrix (Auto-comp) Note 1: Compensation pairs discussed during the call are marked with pink arrows. Red arrows indicate other compensation pairs I felt could benefit from manually tweaking compensation values. Note 2: flowjo automatically flags manual edits using red text; all other differences are flowjo doing weird rounding/display stuff (ex. for PEA610-PE “590” is really “59.36;” the value has not been modified… this drives me NUTS!
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
5 10 4 10 20.6 3 10 <G710-A>: CD4 CY55PE 2 10 0 2 3 4 5 0 10 10 10 10 <B515-A>: IFNg FITC 5 10 4 10 3 10 2 10 41 0 2 3 4 5 0 10 10 10 10 <G710-A>: CD4 CY55PE <B515-A>: IFNg FITC No Biexponential Transformation:Off-scale Negative Affects Gate Placement Original gate Revised gate CD4 PE-Cy5.5 IFNFITC
FlowJo v8.3.3 (Rm 120 G5): BiExponential Transformation of Specimen 1 Tube 1 (Unstim) CD4+ Gate
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
CIC Gating Panel: Gating Recommendations (examples of adequate analysis)
CIC Gating Panel: Gating Recommendations (examples of inadequate analysis)
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
EQAPOL: example of backgates showing CD3 dim+ excluded from gate
A Before Backgate IFNg Backgate After Backgate Exclusion CD3 AmCyan B CD4 Gated CD8 Gated 5.23 0.27 Before Backgate CD8 APC-Cy7 0.38 5.74 CD4 PerCP-Cy5.5 After Backgate IFNg PE-Cy7 BACKGATING: purity & recovery Duke University Medical Center
Elements of Data Analysis • Compensation – electronic adjustment for spectral overlap • When to compensate • Acquisition – if gating on #CD3+, requires compensation • Off-line • Spillover • Biexponential Transformation • Gates • Analysis Regions • Backgating – used to tweak gates and analysis regions so as to optimize response (maximize positive and minimize negative responses) • Training
Intra-Operator Comparison: Original Analysis N=5 FTE analyzing 8 stims 12 colors
Intra-Operator Comparison: Original Analysis N=5 FTE analyzing 8 stims 12 colors
5 10 4 10 20.6 3 10 <G710-A>: CD4 CY55PE 2 10 0 2 3 4 5 0 10 10 10 10 <B515-A>: IFNg FITC 5 10 4 10 3 10 2 10 41 0 2 3 4 5 0 10 10 10 10 <G710-A>: CD4 CY55PE <B515-A>: IFNg FITC Intra-Operator Analysis:12 Color ICS NM Analysis - CD3+ Lymphocytes Gated Original gate Revised gate CD4 PE-Cy5.5 IFNFITC
original Intra-Operator AnalysisBefore & After Correcting CD4- & CD8- Gates final
Intra-Operator Analysis: Same data file created in different FlowJo versions but pasted from the exact same FlowJo File (preferences identical) Created in V6.4.2 Opened & copied in V6.4.6 -looks correct Created in V6.4.6 Opened & copied in V6.4.6 -looks bad
Intra-Operator AnalysisBefore & After FlowJoManual Transformation
Gating Strategy for 11-Color Maturation/Function Panel: 1 of 3 57.8 88.3 <G710-A>: CD4 CY55PE 0.79 FSC-H SSC-A <Violet H-A>: vAmine CD14PB CD19 PB 99.3 41.4 36.3 FSC-W <V705-A>: CD8 Q705 FSC-A <Violet G-A>: CD3 Amcyan Basic Gates: - 3 total Ungated Singlets CD3+ Exclusion- SSC-A FSC-H Exclusion (Violet H) FSC-W CD3 AmCyan FSC-A Scatter CD4+CD8- CD4+CD8+ CD4 PerCP-Cy5.5 CD8+CD4- CD8 Alexa700 Duke University Medical Center
Gating Strategy for Sampson 11-Color Maturation/Function Panel: 2 of 3 54.1 28.6 56.4 43 <G660-A>: CD27 CY5PE <G660-A>: CD27 CY5PE 2.58 8.46 0.33 6.55 62.5 22 22.9 3.98 <G660-A>: CD27 CY5PE <V545-A>: CD57 Q545 1.07 13.2 5.67 0.12 <V545-A>: CD57 Q545 <V545-A>: CD57 Q545 3.98 11.7 21.5 51.7 55.9 24.2 42.9 56.9 Maturational Gates: - 5 per basic subset CD4+CD8- CD4+CD8+ N CM TE E CD8+CD4- CD27 APC-Alexa750 N CM TE E CD57 FITC N CM TE E CD57 FITC CD27 APC-Alexa750 EM CD57 FITC CD27 APC-Alexa750 EM CD45RO ECD EM CD45RO ECD CD45RO ECD Central Memory EffectorMemory Terminal Effector Naive Effector Central Memory EffectorMemory Terminal Effector Naive Effector Central Memory EffectorMemory Terminal Effector Naive Effector Duke University Medical Center
Gating Strategy for Sampson 11-Color Maturation/Function Panel: 3 of 3 4.19 1.14 2.59 <R710-A>: CD107a AX680 0.31 Functional & Boolean Gates: - 4 functional gates per maturational subset CM: CD8+CD4- CD107 IFN- Backgate! IL-2 TNF- Duke University Medical Center
Gating Strategy for Sampson 11-Color Maturation/Function Panel: 3 of 3 4.19 1.14 2.59 <R710-A>: CD107a AX680 0.31 Functional & Boolean Gates: Polyfunctional (1: ++++) - 4 functional gates per maturational subset - 16 boolean gates per maturational subset Polyfunctional (4: +++) CM: CD8+CD4- CD107 Bifunctional (6: ++) IFN- Boolean Gates Key: 7 = CD107 g = IFN- 2 = IL-2 T = TNF- IL-2 Monofunctional (4: +) TNF- Nonfunctional (1: ----) Duke University Medical Center