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8 protocols using cd14 percpcy5

1

Tetramer-based Identification and Sorting of B Cells

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B cells were eluted from PBMCs using a MACS Human B Cell isolation kit (Miltenyi Biotec). B cells were stained with rGP38 (IbAr10200) that had been tetramerized at 25 nM using Streptactin-PE (IBA Lifesciences) and Streptactin-APC (IBA Lifesciences). B cells were simultaneously stained with rGP38-Streptactin-PE and rGP38-Streptactin-APC tetramers for 1 hour on ice. Cells were washed twice in buffer (PBS, FBS, EDTA). Next, B cells were stained with a panel of antibodies. Donor 1 PBMCs were stained with a cocktail of anti-human CD3 PerCP-Cy5.5 (Biolegend), CD8 PerCP-Cy5.5 (Biolegend), CD14 PerCP-Cy5.5 (Invitrogen), CD16 PerCP-Cy5.5 (Biolegend), propidium iodide (PI) (Invitrogen), CD19 PE-Cy7 (Biolegend), CD27 BV510 (BD Biosciences), IgM BV711 (BD Biosciences), IgD BV421 (Biolegend), IgG BV605 (BD Biosciences), and IgA AF488 (Abcam). Donor 5 and 6 PBMCs were stained with a cocktail of anti-human CD3 PerCP-Cy5.5 (Biolegend), CD8 PerCP-Cy5.5 (Biolegend), CD14 PerCP-Cy5.5 (Invitrogen), CD16 PerCP-Cy5.5 (Biolegend), PI (Invitrogen), CD19 PE-Cy7 (Biolegend), CD20 PE-Cy7 (Biolegend), CD27 BV510 (BD Biosciences), IgM AF488 (Biolegend), and IgD BV421 (Biolegend). B cells were washed twice in buffer and run on a FACS Aria Fusion Cytometer (BD Biosciences). B cells were sorted into Super Script III reaction buffer (ThermoFisher Scientific) in 96-well Costar plates and frozen at −80 °C.
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2

Multicolor Flow Cytometry Panel

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Fluorphore-conjugated monoclonal antibodies from BD Bioscience (CD3-V500, CD8-V500, CD3-Alexa 700 and TNF-α-PE-Cy7), Biolegend (CD14-FITC, CD16-FITC, CD19-FITC, CD14-PerCP/Cy5.5, CD16-PerCP, CD19-PerCP, IFN-γ-Pacific Blue, PD-1-PerCP/Cy5.5, IL-2-APC and CD4-Alexa 700) and eBioscience (CD127-V450) and Invitrogen (LIVE/DEAD blue fluorescent reactive dye and CD8-Qdot 605) were used in these studies.
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3

Comprehensive Cervical Cell Phenotyping

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The phenotype of cells collected on the cervical brushes was determined using flow cytometry. Squamous epithelial cells and dead leukocytes absorbed 4′,6-diamino-2-phenylindole (DAPI). Cells that excluded DAPI were examined using directly labelled monoclonal antibodies against the following human proteins: CD45-FITC and CD16-PerCPCy5.5 from BD Biosciences (Franklin Lakes, NJ, USA), CD163-PE, CD11b-PE, CD20-PE, CD14-PerCPCy5.5, HLA-DR-PECy7, CD19-PECy7, CD27-PECy7, CCR7-PECy7, CD11b-APC (activation epitope CBRM1/5) and CD16-APC from eBioscience (San Diego, CA, USA); CD235a-PE, CD68-PE, CD66b-PE, CD103-PE, CD11c-PE, CX3CR1-PE, CCR2-PerCPCy5.5, CD3-PECy7, CCR1-APC, CD4-APC, CD33-APC and CD64-APC from Biolegend (San Diego, CA, USA). Flow cytometric data were collected on an LSRII (BD Biosciences). A minimum of 300,000 events were collected for each group of antibodies so that even a leukocyte population consisting of 0.01% of the total host-derived cells could be reliably detected. Data were analysed using FlowJo 9.6.4 (TreeStar, Ashland, OR, USA).
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4

Sorting and Profiling of Immune Cells

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ErcDCs and macrophages were sorted from ccRCC tissue-cell-suspensions stained with CD45-PeCy7, CD11c-APC, CD3-PB, CD209-PE (all BD Biosciences), CD14-PerCPCy5.5 (eBioscience, San Diego, CA, USA) and LIVE/DEAD® Fixable Near-IR Dead Cell Stain Kit (Thermo Fisher Scientific). Sorting gates were set on CD209+CD14+ cells (ercDCs) and CD209CD14+ cells (macrophages), among pre-gated CD45+, live, single CD11c+ CD3 cells. CD1c+ DC and slanDCs were sorted from B- and NK-depleted PBMCs of healthy donors (HD) using anti-CD11c-PE, anti-CD3-PB (all BD Biosciences), anti-CD56-APC (Beckman Coulter, Brea, CA, USA), anti-CD19-PB (Dako by Agilent, Santa Clara, CA, USA), anti-CD1c-PeCy7 (Biolegend, San Diego, CA, USA), anti-slan-FITC (Miltenyi Biotec) and LIVE/DEAD® Fixable Near-IR Dead Cell Stain Kit. The gating strategy and instrument parameters are in Supplemental Figure S1. Gates were set very strictly, not covering the whole population, to avoid contamination with other cell populations. Cell population purity varied between 98–100%. Cells were directly sorted into 250 µL of RLT lysis buffer with ß-mercaptoethanol (RNeasy Micro Kit by Qiagen, Venlo, The Netherlands) using FACSAria IIIu (BD Biosciences), then homogenized (QIAshredder by Qiagen) and stored at −80 °C. Details about sorted cell types and numbers of biological replicates are listed in Table S2.
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5

Isolation and Characterization of Kidney Dendritic Cells

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Kidneys were processed as previously described (22 (link)) and the cell pellet was resuspended in PEB buffer (0.5% BSA, 2mM EDTA in PBS pH 7.4) containing anti-mouse CD16 (BD Pharmingen San Diego, CA). Anti-CD11c coated MACS beads (Miltenyi Biotech – Bergisch-Gladbach, Germany) 10ul/107 cells were added for 15 minutes followed by anti-CD11b coated beads for 15 minutes. Cells were then stained with anti-F4/80-PE (Invitrogen, Carlsbad, CA), anti-CD11c-FITC (BD Pharmingen) and anti-CD11b-APC (eBiosciences, San Diego, CA) and loaded into the AutoMACS. Separation of the labeled cells was performed using either POSSEL_S or POSSEL_D program.
The positive fraction was further fractionated by cell sorting as shown in Figure 1 and the purity of the populations was evaluated by post sort analysis. Populations were further characterized by staining with anti-mouse CD103-PerCP-Cy5.5, BTLA-PE, 33D1-biotin, F4/80-Pacific blue (Biolegend, San Diego, CA), CD8α-PerCP, MHCII-AF700, CD14-PerCp-Cy5.5 (eBiosciences), CD43-PE, CD62L-PE, MHCI-FITC (BD Pharmingen), DEC205-PE (Miltenyi Biotech) and VLA4-FITC (Southern Biotech, Birmingham, Alabama) (20 (link), 22 (link)).
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6

Multiparametric Flow Cytometry Analysis

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A flow cytometry analysis was performed using a flow cytometer CyFlow (Partec). The cells were washed with FACS buffer (PBS, 2% FBS) and resuspended in a 0.1 mL FACS buffer. The cells were stained with anti-mouse CD105-APC, CD90.2-FITC, CD34-FITC, CD11b-APC (Miltenyi Biotec), CD14 PerCP‐Cy5.5 (eBioscience), Ly-6A/E (Sca-1)-Pacific Blue (BioLegend) antibodies. Data were analyzed using the FlowJo software (BD).
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7

Quantifying Antigen-Specific T-Cell Frequencies

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Analysis of T-cell frequency was accomplished using our previously published approach (26 (link)). Briefly, 40–60 × 106 PBMCs were resuspended in a total of 400–600 µL media, divided into two or three independent tubes of 20 × 106 cells (200 µL) each, incubated with 50 nmol/L dasatinib for 10 min at 37°C, and stained with 20 µg/mL PE-labeled, PE-CF594–labeled, or PE-Cy5–labeled HIP tetramers at room temperature for 120 min (three tetramers per tube for a total of six hybrid peptide tetramers plus an nonimmunogenic control tetramer if adequate cells were available for a third staining tube). Cells were washed, incubated with PE-magnetic beads (Miltenyi Biotec) for 20 min at 4°C, and magnetically enriched; 1% of the cells were retained as a nonenriched sample. Enriched (bound) and nonenriched (precolumn) samples were stained with CD4 V500, CD14 PerCP-Cy5.5, and CD19 PerCP-Cy5.5 (eBioscience) and CD45RA AF700 (BD), CXCR3 FITC, CCR6 BV421, and CCR4 BV605 (BioLegend) for 15 min at 4°C. After washing, cells were labeled with ViaProbe (BD Biosciences) and analyzed on a FACSCanto (BD Biosciences), gating on CD4+CD14CD19ViaProbe cells and plotting tetramer versus CD45RA. Frequencies were calculated as previously described (26 (link)).
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8

Isolation and Sorting of Immune Cell Subsets

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ErcDCs and macrophages were sorted from ccRCC tissue-cell-suspensions stained with CD45-PeCy7, CD11c-APC, CD3-PB, CD209-PE (all BD Biosciences), CD14-PerCPCy5.5 (eBioscience) and LIVE/DEAD® Fixable Near-IR Dead Cell Stain Kit (Thermo Fisher Scientific). Sorting gates were set on CD209 + CD14 + cells (ercDCs) and CD209 -CD14 + cells (macrophages), among pre-gated CD45+, live, single CD11c + CD3 -cells. CD1c + DC and slanDCs were sorted from B-and NK-depleted PBMCs of healthy donors (HD) using anti-CD11c-PE, anti-CD3-PB (all BD Biosciences), anti-CD56-APC (Beckman Coulter), anti-CD19-PB (Dako), anti-CD1c-PeCy7 (Biolegend), anti-slan-FITC (Miltenyi Biotec) and LIVE/DEAD® Fixable Near-IR Dead Cell Stain Kit.
Gating strategy and instrument parameters are in supplemental Figure S2. Gates were set very strictly, not covering the whole population, to avoid contamination with other cell populations. Cell population purity varied between 98%-100%. Cells were directly sorted into 250 µl of RLT lysis buffer with ß-mercaptoethanol (RNeasy Micro Kit, Qiagen) using FACSAria IIIu (BD Biosciences), then homogenized (QIAshredder, Qiagen) and stored at -80°C. Details about sorted cell types, number of biological replicates are listed in table S2).
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