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6 protocols using cd8 bv711 clone rpa t8

1

Multiparameter Flow Cytometry Phenotyping

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We pre-incubated 1 × 106–3 × 106 cells with APC-conjugated VY9, or NP8 tetramer at 37°C, 5% CO2 for one hour. (The tetramers were produced by the NIH Tetramer Core Facility at Emory University, Atlanta, GA.) Next, we added the antibodies recognizing the surface phenotypic markers. We used antibodies from BD Biosciences: CCR7 (clone 150503, R&D Systems) FITC, CD3 (clone SP34-2) PE-CF594, CD8 (clone RPA-T8) BV711, CD20 (clone 2H7) Alexa700, CD28 (clone CD28.2,) PE, CD45 (clone D058-1283) BV786; from BioLegend: PD-1 (clone EH12.2H7) BV605; from Beckman Coulter: NKG2a (clone Z199) PE-Cy7, and Near-Infrared Live/Dead Discriminator from Life Technologies. We incubated the cells for 15 min at room temperature, removed any unbound reagents with two washing steps then fixed them with 2% PFA. We acquired the data on a special-order BD LSR II (BD Biosciences, San Jose, CA) equipped with a 50 mW 405 nm violet, a 100 mW 488 nm blue, and a 50 mW 640 nm red laser, 16 detectors, and FACSDiva software version 8.0.1. We collected up to 250,000 events in the lymphocyte gate defined by the forward and side scatter parameters. We analyzed the data using FlowJo version 10.4.2.
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2

Multiparametric Flow Cytometry of T-cell Subsets

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We pre‐incubated 1 × 106–3 × 106 cells with APC‐conjugated VY9, or NP8 tetramer at 37°C, 5% CO2 for one hour. (The tetramers were produced by the NIH Tetramer Core Facility at Emory University, Atlanta, GA.) Next, we added the antibodies recognizing the surface phenotypic markers. We used antibodies from BD Biosciences: CCR7 (clone 150503, R&D Systems) FITC, CD3 (clone SP34‐2) PE‐CF594, CD8 (clone RPA‐T8) BV711, CD20 (clone 2H7) Alexa700, CD28 (clone CD28.2,) PE, CD45 (clone D058‐1283) BV786; from BioLegend: PD‐1 (clone EH12.2H7) BV605; from Beckman Coulter: NKG2a (clone Z199) PE‐Cy7, and Near‐Infrared Live/Dead Discriminator from Life Technologies. We incubated the cells for 15 min at room temperature, removed any unbound reagents with two washing steps then fixed them with 2% PFA. We acquired the data on a special‐order BD LSR II (BD Biosciences, San Jose, CA) equipped with a 50 mW 405 nm violet, a 100 mW 488 nm blue, and a 50 mW 640 nm red laser, 16 detectors, and FACSDiva software version 8.0.1. We collected up to 250,000 events in the lymphocyte gate defined by the forward and side scatter parameters. We analyzed the data using FlowJo version 10.4.2.
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3

Multicolor Flow Cytometry Analysis

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Multicolor flow cytometric analysis was performed on whole blood or a cell suspension using predetermined optimal concentrations of the following fluorescently conjugated monoclonal antibodies (MAbs): CD3-APC-Cy7 (clone SP34-2), CD95-PE-Cy5 (clone DX2), Ki-67-AF700 (clone B56), HLA-DR-PerCP-Cy5.5 (clone G46-6), CCR7-FITC (clone 150503), CCR5-APC (clone 3A9), and CD45RA-PECy7 (clone L48) from BD Biosciences; CD8-BV711 (clone RPA-T8), CD4-BV650 (clone OKT4), and PD-1-BV421 (clone EH12.2H7) from BioLegend, and CD28-ECD (clone CD28-2) from Beckman Coulter. Flow cytometric acquisition and analysis of samples were performed on at least 100,000 events on an LSR II flow cytometer driven by the FACSDiva software package (BD Biosciences). Analyses of the acquired data were performed using FlowJo version 10.0.4 software (TreeStar).
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4

Multicolor Flow Cytometry of PBMCs

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Multicolor flow cytometric analysis was performed on whole blood or frozen PBMCs using predetermined optimal concentrations of the following fluorescently conjugated mAbs: CD3-PacBlue or -APC-Cy7 (clone SP34-2), CD95-PE-Cy5 (clone DX2), Ki-67-AF700 (clone B56), HLA-DR-PerCP-Cy5.5 (clone G46-6), CCR7-PE-Cy7 (clone 3D12), CCR5-PE or -APC (clone 3A9), CD45RA-FITC (clone L48), Biotin-CD122 (clone Mik-β3) from BD Biosciences; CD8-BV711 (clone RPA-T8), CD4-APC-Cy7 or -BV650 (clone OKT4), Streptavidin-PE from Biolegend, and CD28-ECD (clone CD28-2) from Beckman-Coulter. Flow cytometric acquisition and analysis of samples was performed on at least 100,000 events on an LSRII flow cytometer driven by the FACSDiva software package (BD Biosciences). Analyses of the acquired data were performed using FlowJo Version 10.0.4 software (TreeStar).
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5

Comprehensive Flow Cytometry Immune Profiling

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Flow cytometry staining was performed as previously described (57 (link)–59 (link)). In brief, 1 × 106 PBMCs were stained with Zombie (BioLegend) fixable viability dye for 30 min at 4°C, then labeled with antibodies to surface markers in Brilliant Stain buffer (BD Biosciences) for 30 min at 4°C. Subsequently samples were stained with 25 μg/mL cholera toxin B subunit FITC conjugate (CTB-FITC) (Sigma-Aldrich), fixed for 1 h in 2% paraformaldehyde, and stained for 2 h with 50 μg/mL filipin complex from Streptomyces filipinensis (Sigma-Aldrich) before reading the samples on a BD LSRFortessa X-20 cytometer using BD FACSDiva software. Compensation was performed using anti-mouse IgGκ/negative control compensation particles set (BD Biosciences) or OneComp eBeads (ThermoFisher Scientific), with the exception of viability dyes and filipin which were performed with single stained and unstained cells. Data was analyzed using FlowJo (Tree Star).
Antibodies for surface markers: CD45RA-BUV737 (clone HI100, BD Biosciences, 584442) CD27–APC (clone M-T271, BioLegend, 356409), CD4-AF700 (clone OKT4, eBioscience, 56-0048-82), CCR7-BV421 (clone G043H7, BioLegend, 353207), CD69-BV510 (clone FN50, BioLegend, 310936), CD8-BV711 (clone RPA-T8, BioLegend, 301044), CD3-BV785 (clone OKT3, BioLegend, 317330), CD25-PE (clone M-A251, BioLegend, 356104), CD127-PE-Cy7 (clone A019D5, BioLegend, 351320).
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6

Multicolor Flow Cytometric Profiling of T Cells

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Multicolor flow cytometric analysis was performed on whole blood (WB) or cell suspensions using predetermined optimal concentrations of the following fluorescently conjugated monoclonal antibodies (MAbs). For WB T cell analysis the following MAbs were used: CD3-allophycocyanin (APC)-Cy7 (clone SP34-2), CD95-phycoerythrin (PE)-Cy5 (clone DX2), Ki67-AF700 (clone B56), HLA-DR-peridinin chlorophyll protein (PerCP)-Cy5.5 (clone G46-6), CCR7-fluorescein isothiocyanate (FITC) (clone 150503), CCR5-APC (clone 3A9), CD62L (clone SK11), and CD45-RA-PE-Cy7 (clone L45) from BD Biosciences; CD8-BV711 (clone RPA-T8), CD4-BV650 (clone OKT4), and PD-1-BV421 (clone EH12.2H7) from BioLegend; and CD28-ECD (clone CD28-2) from Beckman-Coulter. Flow cytometric acquisition and analysis of samples were performed on at least 100,000 events on an AURORA flow cytometer driven by the SpectroFlo software package (Cytek). Analyses of the acquired data were performed using FlowJo version 10.0.4 software (TreeStar).
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