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10 protocols using anti cd45ro apc

1

Multiparametric Phenotyping of T-Cell Subsets

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Cryopreserved PBMC and cells extracted from the gut biopsy specimens were rested overnight at 37°C before stimulation for 6 h with 40 ng/ml of phorbol myristate acetate (PMA) and 1 µM ionomycin in the presence of 1 µL/mL of brefeldin A (Sigma-Aldrich) to prevent cytokine release. After two washes with RPMI medium containing 10% heat-inactivated human serum (Gemini BioProduct), cells were fixed and permeabilized according to the eBioscience Fix/Perm protocol. The cells were stained with the following antibodies: anti-CD3 PE-Cy7 (Clone:SK7), anti-CD4 APC-Cy7 (Clone:SK3), anti-CD8 PacBlue (Clone:RPA-T8), anti-CD8 PerCP (Clone:SK1), anti-CD27 FITC (Clone:M-T271), anti-CD45RO APC (Clone:), anti-tumor necrosis factor (TNF) APC (Clone: 6401.1111), anti-Ki67 FITC (Clone:MOPC-21) from BD; anti-interferon γ (IFN-γ) PacBlue (Clone:4S.B3) and anti-IL-17 PE (Clone:ebio64Dec17) from eBioscience. Samples were acquired (approximately 200,000 events per sample) and analyzed as described above. In the gut mucosa, T-cells that were CD45RO+/CD27+ were identified as central memory (CM) and CD45RO+/CD27 as effector memory (EM).
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2

Flow Cytometric Analysis of CIK Cells

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CIK cells were resuspended at 2 × 105 cells per 100 μL of phosphate-buffered saline (PBS) and incubated for 30 min at 4 °C with the following anti-human antibodies: anti-CD3-PE-Cy5, anti-CD4-FITC, anti-CD8-PE-CF594, anti-CD25-APC, anti-CD56-PE-Cy7, anti-CD45RO-APC, and anti-CD62L-FITC (all from BD Bioscicence). The cells were analyzed using a CytomicsTM FC500 Flow Cytometer (Beckman Coulter, USA). Data analysis was performed with CXP analysis software (Beckman Coulter, USA).
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3

Multiparametric Flow Cytometry for Immune Profiling

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The following fluorochrome-conjugated monoclonal antibodies (mAbs) were purchased from commercial vendors and used for surface staining: anti-CD4-V500, anti-CD8-APC-H7, anti-CD45RA-PE-Cy7, anti-CD45RO-APC, anti-CCR7-AF700, anti-CD95-PE, anti-CD160-FITC, anti-CD244-FITC, and anti-PD-1-FITC (BD Biosciences, San Jose, CA); anti-CD3-BV605 (Biolegend, San Diego, CA); anti-CD14-Pacific Blue and anti-CD19-Pacific Blue (Life Technologies, Carlsbad, CA); and anti-CD27-PC5 (Beckman Coulter, Indianapolis, IN). The fixable violet amine reactive dye (ViViD; Invitrogen/Molecular Probes, Eugene, OR) was used to eliminate dead cells by flow cytometry. For intracellular cytokine staining, the following mAbs were used: anti-granzyme B (GZMB)-FITC, anti-IL-2-FITC, and anti-IFN-γ-FITC (BD Biosciences).
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4

Multiparametric Flow Cytometry of Tonsillar Cells

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Single cells from tonsil (10 6 ) were stained with Fixable Viability Dye eFluor™ 780 (eBioscience, 65086518, 1:1000) for 20 minutes at 4°C. After wash steps, cells were incubated with a mix of antiCD3BV421 (BD Bio science, 563798, clone SK7, 1:25), antiCD8PerCp (BD Bioscience, 345774, clone SK1, 1:5), antiCD45ROAPC (BD Bioscience, 340438, clone UCHL1, 1:25), and antiCD20PE (Biolegend, 302306, clone 2H7, 1:10) for 30 minutes at 4°C. Next cells were fixed, permeabilized with Foxp3/Transcription Factor Staining Buffer Set (eBio science, 00552300) and incubated with antiFOXP3alexa488 (eBioscience, 53477642, clone PCH101, 1:8) 30 minutes at RT. Flow Cytometry was conducted with the FACS Verse (BD Biosciences). Flow cytometry data was analyzed using FlowJo software (v10, Tree Star).
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5

Isolation and Characterization of TEM Cells

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CD4+ T cells were isolated by negative selection from isolated LPMCs using an Easy Sep Magnet (STEMCELL Technology, Vancouver, Canada) and an Easy Sep Human CD4+ T cell Enrichment kit (STEMCELL Technology). Furthermore, the isolated CD4 positive T cells were stained with anti-CD3-FITC, anti-CD4-PE, anti- CD45RO-APC, anti-CD197 (CCR7) -BV421, and 7ADD-Cell Viability Solution (BD Biosciences), followed by isolation of TEM cells using a FACS Aria II cell sorter (BD Biosciences). Sorting efficiency was consistently over 98%. These TEM cells may include a few regulatory T Cells. However, to keep the number of cells to perform RNA sequencing, we used these samples as TEM cells. DNA and total RNA were extracted from isolated TEM cells using an AllPrep DNA/RNA mini kit (QIAGEN, Hilden, Germany).
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6

Multiparametric Flow Cytometry Analysis

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The following fluorochrome-conjugated monoclonal antibodies (mAbs) were purchased from commercial vendors and used for surface staining: anti-CD4-V500, anti-CD8-APC-H7, anti-CD45RA-PE-Cy7, anti-CD45RO-APC, anti-CCR7-AF700, anti-CD95-PE, anti-PD-1-FITC and anti-CD69-FITC (BD Biosciences, San Jose, CA); anti-CD3-BV605 (Biolegend, San Diego, CA); anti-CD14-Pacific Blue and anti-CD19-Pacific Blue (Life Technologies, Carlsbad, CA); anti-CD30 Ligand /TNFSF8-AF488 and anti- A20/TNFAIP3- AF488 (Novus Biologicals, Littleton, CO) and anti-CD27-PC5 (Beckman Coulter, Indianapolis, IN). The fixable violet amine reactive dye (ViViD; Invitrogen/Molecular Probes, Eugene, OR) was used to eliminate dead cells by flow cytometry.
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7

Flow Cytometry Immunophenotyping Panel

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The following antibodies were used for flow cytometry: anti Integrin β7 PE (clone FIB504), anti CD45RO APC and anti CD45RO BV421 (clone UCHL1), anti CD62L PE (clone DREG-56), anti CD69 PE (clone FN50), anti CCR5 APC (clone 2D7) and anti Ki-67 FITC (clone MOPC-21) (BD Pharmingen, San Diego, CA). For intracellular Ki-67 staining, BD Perm Wash Kit and company protocol were utilized (BD Pharmingen, San Diego, CA). The anti-α4β7 mAb heterodimer (clone Act-1) was gifted by Dr. Aftab Ansari. The Synagis antibody was gifted from Dr. Barton Haynes and used as a control in several experiments where designated. Data were collected on a FACSCanto II (BD Biosciences, San Diego, CA) and were analyzed using FlowJo and GraphPad Prism software.
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8

Flow Cytometry Immunophenotyping Panel

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The following antibodies were used for flow cytometry: anti Integrin β7 PE (clone FIB504), anti CD45RO APC and anti CD45RO BV421 (clone UCHL1), anti CD62L PE (clone DREG-56), anti CD69 PE (clone FN50), anti CCR5 APC (clone 2D7) and anti Ki-67 FITC (clone MOPC-21) (BD Pharmingen, San Diego, CA). For intracellular Ki-67 staining, BD Perm Wash Kit and company protocol were utilized (BD Pharmingen, San Diego, CA). The anti-α4β7 mAb heterodimer (clone Act-1) was gifted by Dr. Aftab Ansari. The Synagis antibody was gifted from Dr. Barton Haynes and used as a control in several experiments where designated. Data were collected on a FACSCanto II (BD Biosciences, San Diego, CA) and were analyzed using FlowJo and GraphPad Prism software.
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9

Expression and Phenotyping of CD19-CARs on T Cells

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Expression of the various CD19-CARs on T cells was detected using either biotinylated anti-mouse FMC63 scFv monoclonal antibody (Biowan) followed by staining with streptavidin-phycoerythrin (PE) (BD Biosciences), or with an allophycocyanin (APC)-labeled anti-mouse FMC63 scFv monoclonal antibody (Biowan). 1 × 106 cells were stained for cell surface markers to analyze T cell differentiation and exhaust status. The following antibodies were used: anti-CD3-FITC (BD Biosciences), anti-human CD3-APC (BD Biosciences), anti-CCR7-BV421 (BD Biosciences), anti-CD 45RO-APC (BD Biosciences), anti-CD4-BB515, anti-CD8-BV510 (BD Biosciences), anti-CD45RA-PE- Cy7 (BD Biosciences), anti-CD62L-PE (BD Biosciences), anti-PD-1-APC (BD Biosciences), anti-TIM-3APC (BD Biosciences), and anti-LAG-3-APC (BD Biosciences). Samples were analyzed on either FACSCanto II flow cytometers (BD Biosciences) or Novocyte3110 (AECE).
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10

Phenotyping of Monocyte-Derived DCs and T Cells

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Cells were harvested and washed twice with PBS containing 1% BSA (flow cytometry buffer). The following antibody cocktail was used to phenotype moDCs: anti-CCR7-APC (clone G043H7, BioLegend), anti-CD40-BV605 (clone 5C3, BD), anti-CD86-FITC (clone FUN-1, BD Pharmingen), anti-HLA-DR-PE-CY7 (clone G46-6, BD Pharmingen), and anti-HLA-A2-BV421 (clone BB7.2, BioLegend). Cells were also stained with 7-AAD (BioLegend) to discriminate live from dead cells. T cell phenotyping was performed using the following antibodies: anti-CD8-BV421 (clone RPA-T8, BioLegend), anti-CD45RA-PE (clone HI100, BD), anti-CD45RO-APC (clone UCHL1, BD) and MHC dextramer Mel-A-PE or -APC (HLA-A∗0201/ELAGIGILTV, WB2162, Immudex) for CD8+ T cells and anti-CD4-FITC (clone OKT4, BioLegend), anti-CD69-PerCP-CY5.5 (clone FN50, BioLegend) and anti-OX40-APC (clone ACT35, BioLegend) for CD4+ T cells. T cells were also stained with 7-AAD (BioLegend) to discriminate live from dead cells. Cells were acquired on the LSR Fortessa flow cytometer and analyzed with FlowJo software, version 10.0.
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