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10 protocols using cd45ra hi100

1

T Cell Phenotyping Protocol

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All samples were analyzed with an LSR Fortessa (BD Bioscience), and data were analyzed using FlowJo software (FlowJo). T cell phenotype was evaluated via Zombie Yellow Fixable Viability Kit (BioLegend), human CD45 (clone HI30; BioLegend), mouse CD45 (clone 30F11; BioLegend), CD3 (clone OKT3; BioLegend), CD4 (clone A161A1; BioLegend), CD8 (clone SK1; BioLegend), PD-1 (clone MIH4; BD Bioscience), CD45RO (clone UCHL1; BioLegend), and CD45RA (HI100; BioLegend).
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2

Comprehensive Immune Cell Profiling

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PBMCs were stained with CD197 (G034H7) at 37°C for 20’, followed by CD4 (RPA-T4), CD8 (RPA-T8), CD69 (FN50), CD95 (DX2), CD45RA (HI100), and CD45RO (UCHL1) for 30’ at 4°C (Biolegend, San Diego, CA). Murine cells were stained with CD4 (GK1.5), CD8a (53–5.8), CD25 (PC61), CD44 (IM7), CD45 (30-F11), CD45.1 (A20), CD45.2 (104), CD62L (MEL-14), GITR (DTA-1), Sca-1 (D7), TCRβ (H57–597), TNF-ɑ (MP6-XT22) (all Biolegend) and live-dead (Life Technologies; Carlsbad, CA). Cells were fixed and permeabilized according to instructions (ThermoFisher). Human PBMCs were stained with IFN-ɣ (B27), Ki67 (Ki67), and TNF-ɑ (Mab11). Murine cells were stained with Bcl-2 (BCL-10C4) and TNF-ɑ (Mab11). Samples were acquired on an LSR-II (BD; San Diego, CA), and data were analyzed using FlowJo v10.3.1 (TreeStar; Ashland, OR).
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3

Flow Cytometric Analysis of T Cell Phenotypes

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To evaluate the expression of T cell surface markers by flow cytometry, we incubated tissue and blood cell suspensions with Human TruStain FcX (BioLegend) and stained with following fluorochrome-conjugated antibodies: CD3 (UCHT1, BD Biosciences; OKT3, BioLegend), CD4 (SK3, BD Biosciences; SK3, Tonbo Biosciences), CD8 (SK1, BioLegend; RPA-T8, BD Biosciences), CCR7 (G043H7; BioLegend), CD45RA (HI100; BioLegend), CD25 (BC96; BioLegend), CD127 (A019D5; BioLegend), CD69 (FN50; BioLegend), CD103 (Ber-ACT8; BioLegend), CD45 (HI30; BioLegend), and Fixable Viability Dye eFluor 780 (eBioscience). For stimulation/proliferation assays, we magnetically enriched for CD3+ T cells from single cell suspensions, stained cells with Cell Proliferation Dye eFluor 450 (eBioscience), and cultured cells for up to 120 h with or without TCR stimulation as above. At indicated time points, we performed intercellular staining of NME1 (11615-H07E; Sino Biological) using a Foxp3/Transcription Factor Staining Buffer Kit (Tonbo Biosciences) for fixation and permeabilization of cells according to manufacturer’s instructions. We acquired cell fluorescence data using a BD LSR II flow cytometer and used FCS Express (De Novo Software) for analysis. The results are summarized in Supplementary Fig. 2 and the gating strategy is shown in Supplementary Fig. 18a.
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4

Comprehensive PBMC Phenotypic Analysis

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Phenotypic analysis was performed on PBMCs using panels containing Live/Dead Blue (Life technologies), CD1c (AD5-8E7; Miltenyi), CD3 (SP34-2 and SK7; BD), CD10 (HI10a; Biolegend), CD11c (B-Ly6, BD), CD14 (M5E2, BD), CD16 (3GE, Biolegend), CD19 (HIB19; Biolegend), CD20 (L27, BD), CD34 (561, Biolegend), CD45RA (HI100, Biolegend), CD56 (HCD56, BD), CD62L (SK11, BD), CD66abce (TET2, Miltenyi Biotec), CD80 (L307.4, BD), CD86 (2331; BD); CD123 (7G3; BD), CD133 (7, Biolegend), CD141 (AD5-14H12; Miltenyi), CD146 (P1H12; Biolegend), HLA-DR (TU36, Life technologies), CCR2 (K036C2, Biolegend), CCR4 (L291H4, Biolegend), CCR6 (11A9, BD) and CCR7 (150503, BD) (Panels summarized in S3 Table). Fixation was performed with 1% paraformaldehyde. Samples were acquired on an LSRFortessa flow cytometer (BD Biosciences) and analyzed using FlowJo software (Tree Star).
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5

Multiparameter Flow Cytometry Analysis

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Single-cell suspensions were washed with PBS and stained with LIVE/DEAD Fixable Dead Cell Stain (Thermo Fisher) for 15 minutes, followed by staining with an optimized antibody cocktail for 20 minutes at room temperature (RT). Cells were then washed with FACS buffer (PBS containing 2% FBS) and fixed in PBS containing 1% paraformaldehyde (Sigma-Aldrich). For samples requiring intracellular staining, cells were processed using the Foxp3/Transcription Factor Staining Buffer Set (Thermo Fisher) according to the manufacture’s instruction. Samples were acquired using a FACSymphony (BD Biosciences). Data were analyzed with FlowJo software (version 9.8.8 or higher, BD Biosciences). All sorting experiments were carried out on freshly isolated cells using a FACSAriaII (BD Biosciences). Antibodies used include: CD45 (HI30), CD103 (Ber-ACT8), CD45RA (HI100, Biolegend), CD3 (UCHT1), CD69 (FN50), CD8 (SK1 or RPA-T8), CCR7 (G043H7, Biolegend), CD25 (M-A251), CD127 (HIL-7R-M21), CD4 (RPA-T4), CCR5 (2D7), PD-1 (EH12.1, Biolegend), Granzyme B (GB11), Foxp3 (259D/C7), CTLA4 (BNI3), IL-17A (N49-653), IL-2 (5344.111), (TNFα (Mab11), IFNγ (B27). All antibodies were from BD Biosciences unless otherwise noted.
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Multiparametric Flow Cytometry Analysis

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The following antibodies were used for flowcytometry: CD3 (HIT3a, Becton-Dickinson (BD)), CD4 (SK3, BD), CD45RA (HI100, Biolegend), CXCR5 (TG2/CXCR5,Biolegend and RF8B2,BD), CCR7 (3D12, BD), PD-1 (NAT), CD25 (2A3, BD), CD127 (A7R34, eBioscience), CRTAM(R&D), Granzyme A (GB11,BD), Foxp3 (259D/C7, BD), CD57(HNK-1,BD), IL-17 (SCPL1362, BD), IL-10 (JES3-19F1,BD), IFN-g (25723.11,BD), IL-4 (7A3-3,BD), IL-21 (3A3-N2.1, BD), STAT3(4/P-STAT3,BD), and cell trace violet (CTV,Life Technologies). Data were acquired on FACSCaliber or FACSCanto II and data were then analyzed with FlowJo, version (8.7) (Treestar).
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7

Comprehensive T cell Phenotyping Protocol

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All samples were analyzed with an LSR Fortessa (BD Bioscience) and data were analyzed using FlowJo software (FlowJo LLC). T cell phenotype was evaluated via:Zombie Yellow Fixable Viability Kit (BioLegend), human CD45 (clone HI30, BioLegend), mouse CD45 (clone 30F11, BioLegend), CD3 (clone OKT3, BioLegend), CD4 (clone A161A1, BioLegend), CD8 (clone SK1, BioLegend), CD19 (clone HIB19, BioLegend), CD27 (clone M-T271, BioLegend), CD62L (DREG-56, BioLegend), PD-1 (clone MIH4, BD Bioscience), TIM-3 (clone F38-2E2, BioLegend), CD45RO (clone UCHL1, BioLegend), CD45RA (HI100, BioLegend).
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8

Multiparameter Flow Cytometry Analysis

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Single-cell suspensions were washed with PBS and stained with LIVE/DEAD Fixable Dead Cell Stain (Thermo Fisher) for 15 minutes, followed by staining with an optimized antibody cocktail for 20 minutes at room temperature (RT). Cells were then washed with FACS buffer (PBS containing 2% FBS) and fixed in PBS containing 1% paraformaldehyde (Sigma-Aldrich). For samples requiring intracellular staining, cells were processed using the Foxp3/Transcription Factor Staining Buffer Set (Thermo Fisher) according to the manufacture’s instruction. Samples were acquired using a FACSymphony (BD Biosciences). Data were analyzed with FlowJo software (version 9.8.8 or higher, BD Biosciences). All sorting experiments were carried out on freshly isolated cells using a FACSAriaII (BD Biosciences). Antibodies used include: CD45 (HI30), CD103 (Ber-ACT8), CD45RA (HI100, Biolegend), CD3 (UCHT1), CD69 (FN50), CD8 (SK1 or RPA-T8), CCR7 (G043H7, Biolegend), CD25 (M-A251), CD127 (HIL-7R-M21), CD4 (RPA-T4), CCR5 (2D7), PD-1 (EH12.1, Biolegend), Granzyme B (GB11), Foxp3 (259D/C7), CTLA4 (BNI3), IL-17A (N49-653), IL-2 (5344.111), (TNFα (Mab11), IFNγ (B27). All antibodies were from BD Biosciences unless otherwise noted.
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9

Characterization of Regulatory T Cells

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Human-specific monoclonal antibodies, including CD4 (A161A1), CD25 (BC96), Foxp3 (206D), and CD45RA (HI100), were purchased from BioLegend (UK), and CD127 (A019D5) was purchased from BD Pharmingen (USA). Foxp3 (206D) was used for intracellular flow cytometry assays, while the others were used for surface staining. A MACSQuant Analyzer 10 (Miltenyi Biotec, Germany) was used for detection, and results were analyzed using FlowJo software (FlowJo, Ashland, OR, USA).
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10

Flow Cytometry Analysis of Immune Cells

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We applied established protocols as previously described (5 (link)). The following antibodies were used for flow cytometry analysis; For mouse, CD4 (GK1.5), CD45 (30-F11), CD90.2 (53–2.1), and IL-17A (JC11–18H10.1) were purchased from BioLegend. For human, CD45RA (HI100) was purchased from BioLegend. A CD4 (SK3) was purchased from eBioscience. A Zombie Aqua™ Fixable Viability Kit (intracellular) staining was performed for eliminating dead cells. Surface staining was performed on ice for 20–30 min. Absolute cell numbers were calculated on the basis of the percentage of each cell population. For intracellular staining, harvested cells were stimulated for 4 hours in culture medium with PMA (Sigma-Aldrich), ionomycin (Sigma-Aldrich), and monensin (BD Biosciences). Cytofix/Cytoperm and Perm/Wash buffer (IL-17A/ IFNγ; BD Biosciences) was used for fixation and permeabilization. All flow cytometry data were acquired on a BD LSRII (BD Biosciences) or Cytoflex LX (Beckman Coulter) and analyzed with FlowJo (FlowJo, llc). All procedures were performed according to the manufacturer’s instructions.
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