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35 protocols using anti cd62l

1

Comprehensive Flow Cytometric Analysis

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For flow cytometric analysis, splenocytes (2 × 105) were labelled with mouse anti-rat monoclonal antibodies (mAb) conjugated to fluorescein isothiocyanate (FITC), phycoerythrin (PE), peridininchlorophylla protein (PercP), allophycocyanin (APC) or APC-Cyanine (Cy)7, as in previous studies60 (link). In this case, the antibodies used were anti-CD4, anti-CD8α, anti-CD8β, anti-TCRαβ, anti-TCRγδ, anti-NKR-P1A, anti-CD25, anti-CD45RA (BD Biosciences, San Diego, USA), anti-CD62L, anti-CD103 (Biolegend, San Diego, CA, USA), anti-TLR-4 (Novus Biologicals, Littlon, CO, USA) and anti-Foxp3 (eBioscience). After staining with standard procedures20 (link), analyses were performed using a GalliosTM Cytometer (Beckman Coulter Inc., Miami, FL, USA) at the CCiT-UB. All results were assessed by the Flowjo v.10 software (TreeStar, Inc., Ashland, OR, USA).
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2

Immunophenotyping Murine Splenocytes

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Spleens were sieved (70 µm), before washing [phosphate-buffered saline (PBS); 350 g, 5 min], re-sieving (40 µm), RBC lysis (eBioscience), washing, and resuspension in FACS buffer (1% BSA, 0.05% NaN3, in PBS) or full RPMI 1640. Cells in FACS buffer were Fc blocked (1:100; BioLegend; 10 min, RT) before staining for T-cell activation with: anti-CD4 (1:800; eBioscience), anti-CD8 (1:100), anti-CD62L (1:80), anti-CD44 (1:400; all BioLegend; 20 min, RT); or for Tregs with: anti-CD4 (1:800), anti-CD25 (1:80; BioLegend; 20 min, RT), before washing, fixation, permeabilization (FOXP3 Fix/Perm; BioLegend), then anti-FOXP3 (1:20; BioLegend; 30 min, RT). Splenocytes in RPMI were treated ±ionomycin/phorbol 12-myristate 13-acetate/brefeldin A (1:500; BioLegend), incubated (5 h, 37°C), washed, resuspended in FACS buffer, Fc blocked, stained with anti-CD4 or anti-CD8 (20 min, RT), washed, fixed, permeabilized (BioLegend), then anti-IL-10, anti-IL-17, and anti-interferon γ (IFNγ; all 1:100; BioLegend; 30 min, RT). For neutrophil, monocyte or Ly6C+ cells, whole blood (ethylenediaminetetraacetic acid) was stained with anti-CD115 (1:100; eBioscience), anti-CD11b (1:800), anti-Ly6G (1:80; both BioLegend), anti-Ly6C (1:400; AbD Serotec, Hercules, CA), at RT for 30 min, before RBC lysis, washing, and analysis by flow cytometry (Accuri C6).
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3

Multiparametric Flow Cytometry of Immune Cells

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Spleens were sieved (70 µm), before washing [phosphate-buffered saline (PBS); 350 g, 5
min], re-sieving (40 µm), RBC lysis (eBioscience), washing, and resuspension in FACS
buffer (1% BSA, 0.05% NaN3, in PBS) or full RPMI 1640. Cells in FACS buffer
were Fc blocked (1:100; BioLegend; 10 min, RT) before staining for T-cell activation with:
anti-CD4 (1:800; eBioscience), anti-CD8 (1:100), anti-CD62L (1:80), anti-CD44 (1:400; all
BioLegend; 20 min, RT); or for Tregs with: anti-CD4 (1:800), anti-CD25 (1:80; BioLegend;
20 min, RT), before washing, fixation, permeabilization (FOXP3 Fix/Perm; BioLegend), then
anti-FOXP3 (1:20; BioLegend; 30 min, RT). Splenocytes in RPMI were treated
±ionomycin/phorbol 12-myristate 13-acetate/brefeldin A (1:500; BioLegend), incubated (5 h,
37°C), washed, resuspended in FACS buffer, Fc blocked, stained with anti-CD4 or anti-CD8
(20 min, RT), washed, fixed, permeabilized (BioLegend), then anti-IL-10, anti-IL-17, and
anti-interferon γ (IFNγ; all 1:100; BioLegend; 30 min, RT). For neutrophil, monocyte or
Ly6C+ cells, whole blood (ethylenediaminetetraacetic acid) was stained with
anti-CD115 (1:100; eBioscience), anti-CD11b (1:800), anti-Ly6G (1:80; both BioLegend),
anti-Ly6C (1:400; AbD Serotec, Hercules, CA), at RT for 30 min, before RBC lysis, washing,
and analysis by flow cytometry (Accuri C6).
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4

Comprehensive NK Cell Phenotyping

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The following fluorescently conjugated antibodies were used for phenotypic analysis of NK cells: anti-LFA-1 (363404); anti-CXCR3 (353720); anti-PD-1 (329906); anti-CD107a (328612); anti-NKP44 (325116); anti-CD158e1 (312706); anti-CD158d (347006); anti-CD27 (356412); anti-CCR4 (359412); anti-DNAM-1 (338316); anti-CD16 (302040); anti-Granzyme B (515406); anti-CD62L (304806); anti-CD69 (310910); anti-NKP80 (346706); anti-NKP30 (325210); anti-CD158f (341304); anti-CD158b (312612); anti-Tim-3 (345012); anti-CD94 (305504); anti-TIGIT (372706); anti-TRAIL (308206); anti-CD57 (322306); anti-CX3CR1 (341610); anti-NKG2D (320808); anti-Perforin (353310); anti-Ki67 (350504); anti-IFN-γ (506518); anti-CD94 (305506); anti-NKp46 (331916); anti-CTLA4 (369614); anti-CD96 (338416); anti-41BB (309818); anti-CD25 (356108) were purchased from Biolegend. anti-CD159a/NKG2A (FAB1059P) and anti-NKG2C (FAB138G) were purchased from R&D.
The following fluorescently conjugated antibodies were used to identify immune cell types in eNK or PBMC: anti-human Lineage Cocktail (348803); anti-CD56 (362550); anti-CD3 (300430); anti-CD33 (366620); anti-HLA-DR (307606); anti-CD14 (301836); anti-CD19 (302242); anti-CD11b (301322); anti-CD25 (356108); and anti-FOXP3 (320108) were purchased from Biolegend, San Diego, CA, USA.
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5

Multicolor Flow Cytometry Panel for Immune Profiling

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Cells were stained with the following antibodies obtained from BD Biosciences (Franklin Lakes, NJ, USA), eBioscience, or BioLegend (San Diego, CA, USA): anti-CD4 (BioLegend, 100451), anti-CXCR3 (eBioscience, 12-1831-82), anti-CCR7 (eBioscience, 12-1971-82), anti-CD44 (eBioscience, 12-0441-83), anti-CD62L (BioLegend, 104406), anti-CD11c (BD Bioscience, 553801), anti-MHCII (BioLegend, 107631), anti-CD80 (BD Biosciences, 553769), anti-CD86 (BD Biosciences, 553692), anti-B220 (eBioscience, 12-0452-83), anti-CD8 (BD Bioscience, 553032), anti-CD103 (BD Bioscience, 557495), anti-CD45 (BioLegend, 103132), and anti-CD11b (BioLegend, 101263). For Th1 and Treg analyses, cells were stained for surface markers, permeabilized with the Intracellular Fixation and Permeabilization Buffer Set (eBioscience, 88-8824-00), and then stained with anti-IFN-γ (BioLegend, 505825) and anti-FOXP3 (eBioscience, 17-5773-82) antibodies. The following antibodies were obtained from Cell Signaling Technology (Danvers, Massachusetts, USA): anti-Ezh2 (#5246), anti-Runx1 (#4336), and anti-H3K27me3 (#9733). The Alexa Fluor™ 488 Goat Anti-Rabbit SFX Kit from Invitrogen (Carlsbad, CA, USA) was used as a secondary antibody. Multicolor flow cytometric analysis was performed using a CytoFLEX LX (Beckman Coulter, Indianapolis, IN, USA).
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6

Tumor-infiltrating Lymphocyte Characterization and Profiling

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Tumor-infiltrating lymphocyte isolation and other procedures, including stimulation, fixation, permeabilization, and intracellular staining, were described previously [39 (link)]. Antibodies used for surface marker staining included anti-CD45 (BioLegend, clone: 30-F11), anti-CD3 (BioLegend, clone: 17A2), anti-CD11c (BioLegend, clone: N418), anti-MHC-II (Invitrogen, clone: M5/114.15.2), anti-CD11b (BioLegend, clone: M1/70), anti-F4/80 (BioLegend, clone: BM8), anti-B220 (BioLegend, clone: RA3-6B2), anti-CD4 (BD Horizon, clone: RM4-5), anti-CD8 (BD Pharmingen, clone: 53-6.7), anti-CD40 (BioLegend, clone: 3/23), anti-CD40L (BioLegend, clone: SA047C3), anti-IL2Rα (BioLegend, clone: 3C7), and anti-CD44 (BioLegend, clone: IM7), and anti-CD62L (BioLegend, clone: MEL-14) antibodies. For cytokine staining, an anti-IFN-γ antibody (BD Pharmingen, clone: XMG1.2) was used after TIL fixation and permeabilization. Data were acquired on a BD FACSCanto II flow cytometer (BD Biosciences) and analyzed with FlowJo software (Tree Star).
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7

Immune Cell Profiling of Pancreatic Islets

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Mouse islet cells were stained with anti-CD45 and biotinylated anti-H2Kd (BD Pharmingen) followed by streptavidin-allophycocyanin (BioLegend). β‐cells were identified by autofluorescence (23 (link)). Dead cells were excluded using propidium iodide. The immune cells infiltrating islets and spleens were stained with anti-CD45, anti-CD3, anti-CD4, anti-CD8a, anti-CD44, anti-CD62L, anti-KLRG-1, anti-CD11b, anti-Ly6G (all BioLegend), anti-BrdU, anti-pSTAT3, and anti-pSTAT5 (all BD Bioscience). Data were collected on the FACS Fortessa cell analyzer (BD Bioscience, San Jose, CA, USA) and were analyzed using FlowJo Software version 10 (TreeStar, Inc, Ashland, OR, USA).
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8

Multiparametric Flow Cytometry of Immune Cells

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Different panels of antibody cocktails were generated from anti‐CD45 (BioLegend, 103116, 30‐F11), anti‐CD3 (BioLegend, 100218, 17A2), anti‐CD4 (BioLegend, 100421, GK1x.5), anti‐CD8a (BioLegend, 100711, 53‐6.7), anti‐NKp46 (BioLegend, 137606, 29A1.4), anti‐CD11c (BioLegend, 117307, N418), anti‐CD25 (Biolegend, 101908, 3C7), anti‐FOXP3 (Biolegend, 126404, MF‐14), anti‐granzyme B (BioLegend, 372208, QA16A02), anti‐IFNγ (BioLegend, 505849, XMG1.2), anti‐IFNγ (BioLegend, 505806, XMG1.2, anti‐CD62L (BioLegend, 104432, MEL‐14) and anti‐CD44 (BD Biosciences, 560568, IM7) antibodies, and the AmCyan Live/Dead Cell Staining Kit (Thermo Fisher Scientific). All antibodies were diluted at optimized dilutions before being used.
Female 7–8 weeks old C57BL/6 mice (n = 4–5 per group) were intravenously administered with the equivalent dose (3.8 × 1010 vg/mouse) of either free AAV‐fLuc or RBC‐AAV‐fLuc. Mice were then euthanized on day 31, and spleen and lungs were collected. Organ dissociation kits (Miltenyi Biotec) were used per manufacturer's instruction to generate a single‐cell suspension from excised organs, and cells were stained with the antibodies listed above and analyzed using flow cytometry (BD LSR II Analyser). Flow cytometry data analyses were performed using FlowJo 10 software.
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9

Liver Leukocyte Isolation and Flow Cytometry

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Leukocytes were isolated from the liver in the way as described previously40 (link). For flow cytometry, cells were stained for surface antigens with anti-NK1.1, anti-CD3, anti-CD4, anti-CD8α, anti-CD19, anti-CD44, anti-CD62L (BioLegend, San Diego, CA), or/and for intracellular antigens with anti-IFN-γ, anti-IL-4, anti-IL-17A, anti-TNF-α and anti-IL-10 (BioLegend). IgG isotype controls (Biolegend) were used in parallel. To detect Treg cells, cells were stained with anti-NK1.1, anti-CD3, anti-CD4, anti-CD25 at 4 °C for 30 minutes; and incubated with anti-mouse Foxp3 antibodies according to the manufacturer’s instructions (eBioscience). Methods were the sameas those described previously9 (link).
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10

Establishment of Murine Tumor Models

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To establish a tumor-bearing mouse model, B16F10 cells (murine melanoma, ATCC® CRL-6475™) and CT26 (murine colon carcinoma, ATCC® CRL-2638™) were implanted into 6-week-old male C57BL/6 and Balb/c mice, respectively. Briefly, 5 × 104 cells in 100 μL of serum-free culture medium were subcutaneously injected into each mouse. Solutions of PBS and OPGMN were administered OG before 2 weeks, before 1 week, 0 days, after 1 week, and after 2 weeks of cancer inoculation (n=5). To administer OG, mice were fasted for 6 hours before and 1 hour after administration with free access to water. Tumor volumes were calculated using the following equation: volume = 0.5 × L × W2, where “W” and “L” are the width and length of the tumor, respectively. For in vivo flow cytometry analysis, after 21 days of cancer inoculation, PBMCs were collected and stained with anti-CD3, anti-CD4, anti-CD8, anti-CD11b, anti-CD27, anti-CD44, anti-CD45, anti-CD56, anti-CD62L, anti-CD25, and anti-Foxp3 antibodies (Biolegend). A fixed number of cells (1 × 105, without live-dead marker) per sample was measured using a flow cytometer for CD3+CD8+ cells, CD44highCD62Llow TCM, CD4+CD25+Foxp3+ Tregs, and CD11b+CD27+ NK cells.
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