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13 protocols using anti ccr7

1

Comprehensive Immunophenotyping of LNMC and PBMC

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Two million of LNMC or PBMC were stained for flow cytometry as previously described to analyze the expression of surface and intracellular markers as well as cellular composition using the 3-laser FACS Fortessa (Becton Dickinson; San Jose, USA)(16 (link)). Antibodies used in these analyses were purchased from either BD or Biolegend and included anti-CD16 (clone 3G8), anti-CD11b (clone M1/70), anti-CD1c (clone L161), anti-CD8 (clone SK1), anti-CD14 (clone M5E2), anti-CD11c (clone 3.9), anti-CD4 (clone OKT4), anti-CD20 (clone 2H7), anti-CD123 (clone 7G3), anti-HLA-DR (clone Immu-357), anti-CD3 (clone SP34–2), anti-CCR6 (clone GO34E3), anti-PD1 (clone EH12.2H7), anti-CD28 (clone 28.2), anti-CD69 (clone FN50), anti-CD95 (clone DX2), anti-CDCXCR3 (clone G025H7), anti-CD25 (clone M-A251), anti-Ki67 (clone B56), anti-CXCR5 (clone 1C6), and anti-CCR7 (clone 3D12). A minimum of 100,000 CD3+ T cells were collected, and post-acquisition analysis performed by Y.C. using FlowJo (Version 9.6, TreeStar) software.
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2

Phenotyping Peripheral Blood T Cells

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Peripheral blood mononuclear cells (PBMCs) were isolated by centrifugation on Ficoll. PBMCs were stained with anti-CD45, anti-CD3, anti-CD4, anti-CD8, anti-CD45RA, anti-CCR7 and anti-CD62L antibodies (all from Biolegend) and analyzed on a LSR II Fortessa (BD Biosciences). Analysis of relative frequencies was done using FlowJo v10 (FlowJo LLC).
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3

Phenotypic Analysis of Surface DCs

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For flow cytometry analysis of surface DC phenotype, we used the following monoclonal antibodies (mAb): FITC-labeled anti-CD1c (Biolegend, San Diego, CA, USA), anti-CD14, anti-CD16 and anti-HLA I (all from Invitrogen, Camarillo, CA, USA), Alexa Fluor 488-labeled anti-CD1a and anti-CCR7 (both Biolegend). PE-labeled antibodies included: anti-CD11b, anti-CD11c (both Biolegend), anti-CD80, anti-CD86, anti-DC-SIGN, (all Biolegend), and anti-HLA DR (Miltenyi Biotec, Bergisch Gladbach, Germany).
DCs differentiated in Cellgenix® DC GMP medium (Cellgenix GmbH, Freiburg, Germany) were harvested and collected by centrifugation. Before staining, the cells were washed twice in DPBS in all cases. Antibody was added and the cells were incubated for 15 min in the dark, then washed twice and resuspended in 2% paraformaldehyde (PHA). Samples were analyzed on a FACSCalibur system (BD biosciences, Franklin Lakes, NJ, USA). Data were analyzed with CellQuest software (BD biosciences).
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4

Longitudinal Immunophenotyping of PBMC

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PBMC samples were obtained from patients before the administration of αGalCer-pulsed APCs, and another eight times during the 11-week study period (figure 1). mAbs to detect and fractionate mononuclear cells in peripheral blood were: FITC-conjugated anti-TCR Vα24 (Beckman Coulter, Brea, CA), anti-CD14 (BD Biosciences), anti-CD45RA (BD Biosciences), PE-conjugated anti-TCR Vβ11 (Beckman Coulter), anti-CD56 (BD Biosciences), anti-CCR7 (Biolegend), allophycocyanin-conjugated anti-CD3 (BD Biosciences), αGalCer-loaded CD1d tetramer (ProImmune), allophycocyanin-Cy7 conjugated anti-CD3 (BD Biosciences), PE-Cy7-conjugated anti-CD8 (BD Biosciences), PB-conjugated anti-CD4 (BD Biosciences), anti-CD16 (BD Biosciences), anti-PD-1 (Biolegend), and anti-HLA-DR(Biolegend). The absolute numbers of these cells were also calculated using automated full blood counts.
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5

Phenotyping of T-cell Subsets

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PBMCs (5 × 105) were resuspended in 100 μL 1X phosphate buffered saline and stained with eFluor 455UV fixable live-dead stain (Thermo Fisher Scientific, Carlsbad, CA), to stain nonviable cells. The cells then were surface stained with anti-CD3, anti-CD4, anti-CD8, anti-CD45RA, anti-CCR7, anti-CD127, anti-CD25, and anti-PD1 fluorochrome conjugated antibodies (BioLegend, San Diego, CA) at room temperature for 30 min to identify the T-cell population and their memory or effector phenotypes. Cells were washed, and acquisition was carried out with a cell analyzer (BD LSRFortessaX-20; BD Biosciences, San Jose, CA). Data analyses were carried out with FlowJo data analysis software (FlowJo version 10.4.2, USA).
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6

Phenotypic Characterization of Dendritic Cells

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Cell phenotype staining was performed using the following antibodies: mouse anti-human MGL (HML clone, MoAb MLD-1 [25 (link)]; a generous gift from Professor Tatsura Irimura), mouse anti-human MUC1 (HMFG2), mouse anti-STn (TKH2,) followed by FITC-conjugated goat anti-mouse IgG (H+L; DAKO). MoAbs directly conjugated with FITC or phycoerythrin were also used (all from Beckman Coulter unless stated): IgG1-PE or FITC as isotype controls, anti-MGL (Biolegend; clone H037G3), anti-CD1a, anti-CD83, anti-CD80, anti-CD86 (all PE), anti-CD14, anti-HLA-DR, anti-CCR7, anti-CD40 (all FITC). Cells were suspended in PBS + 0.5% BSA (2 × 105 cells/100 μL/sample) and incubated with MoAbs according to the manufacturer's instructions. At least 1 × 104 events were evaluated using either Epics XL, (Beckman Coulter) or FACSCalibur (BD Biosciences) flow cytometers. Analysis was performed using either WinMDI or Cellquest software.
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7

Comprehensive Immunophenotyping of T Cells

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Cell culture media was RPMI 1640 (Mediatech Inc.) supplemented with 10% heat-inactivated FBS, 100 U/ml penicillin, 100 mg/ml streptomycin, 2 mM L-glutamine, and 50 mM 2-mercaptoethanol (Sigma-Aldrich). Fluorescent anti-CD4, anti-CD8α, anti-CD8β, anti-CD25, anti-CD44, anti-CD45, anti-CD45.1, anti-CD45.2, anti-CD62L, anti-CD103, anti-CCR4, anti-CCR6, anti-CCR7, anti-CCR-9, anti-TCRβ and anti-TCRγδ antibodies were purchased from Biolegend. Anti-CTLA-4, anti-PD-1, anti-GITR, anti-CD127, anti-IFNγ, anti-CXCR3 and anti-CXCR4 were purchased from BD Biosciences-Pharmingen. Anti-MHCII, anti-CD207, anti-Gr-1, anti-CD11b, and anti-Foxp3 staining kit were purchased from eBioscience. Murine recombinant IL-2, IL-6 and E-selection-FC were purchased from R&D Systems. BD Cytofix/Perm buffer was used for intracellular staining. Cells were run on a BD LSR II flow cytometer or a Beckman Coulter Gallios flow cytometer and analyzed by Flowjo (Flowjo LLC).
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8

T Cell Phenotyping of TBI-1301 Infusion Products

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T cell phenotypes of the TBI-1301 products were analyzed using the following antibodies: anti-CD3 (Becton Dickinson Biosciences, Franklin Lakes, New Jersey, USA), anti-CD4 (Becton Dickinson Biosciences), anti-CD8 (Becton Dickinson Biosciences), anti-CD45RA (Beckman Coulter, Brea, California, USA), and anti-CCR7 (BioLegend, San Diego, California, USA). T cell differentiation status of the infusion products was determined by measuring the proportion of stem cell-like memory (CD45RA+/CCR7+), central memory (CD45RA/CCR7+), effector memory (CD45RA/CCR7), and terminally differentiated (CD45RA+/CCR7) T cells.22 (link) Data analysis was performed using FlowJo (Tree Star, San Carlos, California, USA).
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9

Comprehensive Immune Cell Profiling

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Peripheral blood mononuclear cells (PBMCs) were isolated from peripheral blood sample collected from the patient. The cells were then used for flow cytometric analysis according to the manufacturer’s instructions (Mindray, Shenzhen, China), the relevant kits were used for flow cytometry to measure the surface phenotype of immune cells. Anti-CD3 was purchased from Beckman Coulter (Miami, FL, USA) or BD Biosciences (San Jose, CA, USA). Antibodies of CD45, IFN-γ, IL-4, CD28, CD38, CD45RA, CD45, CD4, CD25, and FoxP3 Alexa Fluor® 647 were provided by BD Pharmingen (San Diego, CA, USA). Antibodies of CD4, CD45, CD8, CD4, and CD3 were bought from BD Biosciences (San Jose, CA, USA). Anti-CD8, anti-CCR7, and anti-HLA-DR were from BioLegend (San Diego, CA, USA). Anti-IL-17 was provided by eBioscience (San Diego, CA, USA).
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10

Multiparametric Flow Cytometry Analysis

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Fluorescence staining was performed using the following antibodies: anti-CD11c (AF448 labeled), anti-CD11b (BV510 labeled) anti–I-Ab (BV421 labeled), anti-CCR7 (BV421 labeled), anti-CXCR4 (APC labeled), anti-PD-L1 (APC labeled), anti-PD-L2 (PE labeled) all from Biolegend (San Diego, CA, USA) and anti-CD40 (APC labeled) and anti-CD86 (PE labeled) from eBioscience (San Diego, CA, USA). Fluorescence was analyzed using a FACS Canto™ II (Becton Dickinson, Heidelberg, Germany) flow cytometer and Flowjo™ software (version 10.0.8, FlowJoLLC, Ashland, OR, USA).
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