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7 protocols using anti cd11c apc cy7

1

Isolation and Identification of Murine Immune Cells

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Cells were stained in the dark on ice for 15 min with flow cytometry antibodies. Cells were then washed once with 1× PBS and resuspended in 1× PBS for sorting as described previously11 (link)–13 (link),73 (link). Antibodies used in this study were: PE anti-mouse CD45R/B220 (BD Biosciences, #553089, 1:100), PE anti-mouse TER-119 (Biolegend, #116207, 1:100), PE anti-O4 (R&D Systems, #FAB1326P, 1:100), PE anti-CD105 (eBioscience, #12–1051-82, 1:100), PE anti-CD140a (eBioscience, #12–1401-81, 1:100), PE anti-Ly-6G (Biolegend, #127608, 1:100), PerCP anti-Ly-6C (Biolegend, #128028, 1:100), APC anti-CD45 (eBioscience, #17–0451-83, 1:100), APC-Cy7 anti-CD11c (BD Biosciences, #561241, 1:100), and FITC anti-CD11b (eBioscience, #11–0112-85, 1:100). All cells were gated on the following parameters: CD105negCD140anegO4negTer119negLy-6GnegCD45Rneg. Astrocytes were subsequently gated on: CD11bnegCD45negLy-6CnegCD11cneg. Microglia were subsequently gated on: CD11bhighCD45lowLy-6Clow. Pro-inflammatory monocytes were subsequently gated on: CD11bhighCD45highLy-6Chigh. Compensation was performed on single-stained samples of cells and an unstained control. Cells were sorted on a FACS Aria IIu (BD Biosciences). For sorting of TdTomato+ astrocytes, cells were sorted according to TdTomato fluorescence judged against a wild-type control animal using a yellow-green laser on a FACS Aria IIu.
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2

Flow Cytometric Analysis of Immune Cells

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Cells were stained in the dark on ice for 15 minutes with flow cytometry antibodies. Cells were then washed once with 1X PBS and resuspended in 1X PBS for sorting as described previously (Mayo et al., 2014 ; Rothhammer et al., 2016 ). Antibodies used in this study were: PE anti-mouse CD45R/B220 (#553089, BD Biosciences, 1:100), PE anti-mouse TER-119 (#116207, Biolegend, 1:100), PE anti-O4 (#FAB1326P, R&D Systems, 1:100), PE anti-CD105 (#12–1051-82, eBioscience, 1:100), PE anti-CD140a (#12–1401-81, eBioscience, 1:100), PE anti-Ly-6G (#127608, Biolegend, 1:100), PerCP anti-Ly-6C (#128028, Biolegend, 1:100), APC anti-CD45 (#17–0451-83, eBioscience, 1:100), APC-Cy7 anti-CD11c (#561241, BD Biosciences, 1:100), and PE-Cy7 or FITC anti-CD11b (#25–0112-82, #11–0112-85, eBioscience, 1:100). All cells were gated on the following parameters: CD105negCD140anegO4negTer119negLy-6GnegCD45Rneg. Astrocytes were subsequently gated on: CD11bnegCD45negLy-6CnegCD11cneg. Microglia were subsequently gated on: CD11bhighCD45lowLy-6Clow. Pro-inflammatory monocytes were subsequently gated on: CD11bhighCD45highLy-6Chigh. Compensation was performed on single-stained samples of cells and an unstained control.
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3

Comprehensive Immune Cell Analysis Protocol

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Cell suspensions were incubated for 15 min at 4°C with Fc Block (BD Biosciences) and then stained for 25 min at 4°C with the following fluorochrome-conjugated antibodies: anti-CD11c-APC-Cy7 (clone: HL3, BD Biosciences) or anti-CD11c-PE (clone REA754, Miltenyi Biotec), anti-MHC-II-VioBlue (clone: M5/114.15.2, Miltenyi Biotec), anti-CD11b-PerCP-Vio700 (clone: REA592, Miltenyi Biotec), anti-EpCAM-PE (clone: caa7-9G8, Miltenyi Biotec) or anti-EpCAM-PE-Vio770 (clone caa7-9G8, Miltenyi Biotec), anti-XCR1-APC-Vio700 (clone REA707, Miltenyi Biotec), anti-PD-L2-PE (clone MIH37, Miltenyi Biotec), CD86-APC (clone PO3.3, Miltenyi Biotec). Dead cells were excluded using Zombie Aqua Fixable Viability Kit (Biolegend). For the analysis of Fc receptor expression, cells were permeabilized using an intracellular fixation & permeabilization kit (eBioscience) and incubated for 25 min at 4°C with anti-CD16(FcγRIII)/CD32(FcγRII)-PE-Vio770 (instead of Fc Block, clone: 93, Miltenyi Biotec), anti-FcϵRIα-APC (clone: MAR-1, Miltenyi Biotec), anti-CD23-APC (clone: B3B4, Miltenyi Biotec), anti-CD64-PE-Vio770 (clone: REA286, Miltenyi Biotec). Cells were acquired on a MACSquant 10 or a MACSquant 16 flow cytometer (Miltenyi Biotec) and data were analyzed using FlowJo software using the gating strategies described in Figures S2 and S3 (10 (link)).
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4

Quantifying A20 Phagocytosis by DCs

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A20 phagocytosis was quantified using A20 cells labeled with CellTrace Violet (Invitrogen, Carlsbad, CA). Labeled A20 were left untreated or treated with Dox MPs for 48 h (3 wells per group) at various concentrations. Controls included soluble Dox (at the same concentrations) and blank MPs (at equivalent weights). Treated A20 were washed and co-incubated with DCs at a 1:1 ratio for 2 h, stained with anti-CD11c-APC-Cy7 (BD), and analyzed by flow cytometry. The percentage of double-positive cells (CD11c and CellTrace Violet) was determined.
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5

Immune Profiling of Aortic Arch

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Carotid arteries and aortic arch were dissected from mice and single
cell suspensions were prepared by digestion in 37°C for 1hr in
collagenase buffer. Single cells were first incubated with LIVE/DEAD Fixable
Aqua Dead Cell Stain Kit (Molecular Probes, Cat# L34957) for 30 minutes at room
temperature to stain for dead cells. After washing, the cell suspensions were
labelled with the following fluorescently conjugated antibodies for 1 hour at
4°C: anti-CD11c-APC-Cy7 (BD Pharmingen, Cat# 561241),
Anti-MHCII-eFluor450 (Invitrogen, Cat# 48-5321-82), anti-CD45- Alexa Fluor 700
(Invitrogen, Cat# 56-0451-82), anti-CD3- PE/Dazzle 594 (BioLegend, Cat# 100245),
anti-CD64-PE (BD Pharmingen, Cat# 558455), Anti-CD11b-PerCP/Cy5.5 (BioLegend,
Cat# 101227). Flow cytometry was performed with Gallios Flow Cytometer at the CU
Cancer Center Flow Cytometry Shared Resource core facility. Kaluza flow
cytometry analysis software was used for data analysis.
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6

Multiparametric Flow Cytometry Analysis

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Spleen and inguinal lymph node (LN) cells were harvested from immunized mice at the time of sacrifice. Joint tissues were minced and treated with collagenase (0.25 mg/ml), and joint cell populations were examined for surface markers using antibodies anti-CD4-AF700, anti-CD8a-PE-Cy7, anti-CD19-PE, anti-CD11b-Pacific Blue, anti-CD11c-APC-Cy7, anti-F4/80-APC, and anti-GR-1-FITC (BD Pharmingen, San Jose, CA, USA). For intracellular cytokine staining, cells were stimulated with Phorbol 12-myristate 13-acetate (25 ng/ml) and ionomycin (500 ng/ml) (Sigma-Aldrich) and treated with GolgiPlug (BD Pharmingen) for 4 hours. After cell surface staining with anti-CD3e-PE-Cy7 and anti-CD4-APC-Cy7, cells were permeabilized using the Cytofix/Cytoperm Plus kit (BD Pharmingen) and stained with anti-IFNγ-APC and anti-IL-17A-FITC. A BD LSRII cytometer was used for cytometry and data were analyzed using BD FACS Diva Software.
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7

Flow Cytometric Analysis of Activated T Cells and Dendritic Cells

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Cells were washed with PBS (Life Technologies, Darmstadt, Germany) and dead cells were excluded by viability dye staining (eBioscienceTM Fixable Viability Dye eFluorTM 506) for 20 min on ice. Prior to the surface staining of CD8+ T cells or BMDCs, cells were washed twice with staining buffer (1% BSA, 0,02% NaN3 in PBS). To analyze activated CD8+ T cells, cells were stained for CD8 using anti-CD8-PB (eBioscience) for 30 min on ice. Thereafter, intracellular staining was performed, as described below. Alternatively, BMDCs were analyzed for their SIINFEKL/Kb-loading ability using anti-CD11c-PE, -I-A/I-E-PB, -Kb-PE/Cy7, and -SIINFEKL/H2-Kb-PE/Cy7 (all from eBioscience) or for their maturation phenotype using anti-CD11c-APC/Cy7, -CD86-APC, I-A/I-E-PE antibodies (all BD Pharmingen), or anti-CD40-PB antibody (Biolegend). Antibodies were added after blocking of Fc-receptors using CD16/32 antibodies (Fc-BlockTM, BD Biosciences). After incubation on ice for 30 min, cells were washed and fixed with 1% paraformaldehyde and stored at 8°C until flow cytometry was performed using BD FACS Canto II (BD Biosciences, Heidelberg, Germany).
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