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37 protocols using cytometric bead array human th1 th2 th17 cytokine kit

1

Cytokine Release Profiling by Flow Cytometry

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Concentration of several cytokines, released during biopeptide treatment, was determined using flow cytometry (Becton Dickinson, NJ, USA) [65 (link),66 (link)].
The release of cytokines (IL-2, IL-4, IL-6, IL-10, TNF, INF-γ, IL17-A) in supernatants was measured by flow cytometry using the commercial Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (BD Bioscience catalogue 560484), following the manufacturer’s instructions. Samples acquisition was performed on FACSVerse (BD Biosciences) with FACSuite v 1.0.6.5230 (BD Biosciences) and data analysis by FCAP Array Software v3.0 (BD Bioscience) as suggested.
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2

Quantification of Serum Cytokine Levels

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The serum was isolated from 4 ml of blood obtained in tubes without additives from each individual and stored at −80°C until analysis. The quantitative determination of inflammatory cytokines in serum was performed using the Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine kit (BD Biosciences; San Diego, California, USA). This kit allows quantitatively measure interleukin (IL) 2, IL-4, IL-6, IL-10, Tumor Necrosis Factor (TNF) α, Interferon (IFN) γ, and IL-17A protein levels in a single sample. The fluorescence produced by CBA beads was measured on a FACS Canto II Flow Cytometer (BD Biosciences) and analyzed using FCAP array software (Soft Flow Inc; New Brighton, MN, USA). Detection limits were 2.6 pg/ml for IL-2, 4.9 pg/ml for IL-4, 2.4 pg/ml for IL-6, 4.5 pg/ml for IL-10, 3.8 pg/ml for TNF-α, 3.7 pg/ml for IFN-γ, and 18.9 pg/ml for IL-17A.
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3

Cytokine Profiling for CRS and Neurotoxicity

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The BD Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (San Jose, CA, USA) was used to analyze serum concentrations of released cytokines, including interleukin (IL)-2, IL-4, IL-6, IL-10, IL-17A, tumor necrosis factor α (TNF-α), and interferon γ (IFN-γ). Cytokine release syndrome (CRS) was graded according to the American Society for Transplantation and Cellular Therapy (ASTCT) grading system [23 ]. Neurologic toxicity was graded in accordance with the Common Terminology Criteria for Adverse Events (CTCAE) 4.03 [24 ].
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4

Cytokine Profiling in HPV Infection

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The levels of cytokines were determined in the serum and ECCs from 26 patients positive for HR-HPV DNA and 18 patients negative for HPV DNA. The concentrations of IFN-γ, TNF-α, IL-10, IL-6, IL-4, and IL-2 cytokines were determined using a Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (BD Biosciences, San Jose, CA, USA). Standards, beads, samples, and protocols for the flow cytometer setup and data acquisition were performed according to the manufacturer’s instructions. Samples were evaluated using a FACS Canto II Flow Cytometer (BD Biosciences, San Jose, CA, USA) and analyzed with the FCAP Array software V. 3.0 (Becton Dickinson, Franklin Lakes, NJ, USA). The results were based on standard concentration curves and expressed as picograms per milliliter (pg/mL).
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5

Cytokine Profile Analysis in Serum

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The blood was sampled at the follow-up time points. The protein levels of interleukins (IL-2, IL-4, IL-6, IL-10 and IL-17A), interferon (IFN)-γ and tumor necrosis factor (TNF) were evaluated using the Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (BD Biosciences, San Jose, CA, USA) and flow cytometry analysis. All assays were carried out according to the manufacturer’s protocol. Flow cytometry was used to detect the cytokine levels in serum samples. The serum data were expressed in picograms per milliliter.
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6

CD8+ T cell activation and IFNγ analysis

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Isolated CD8+ T cells from PBMCs (see above) were activated in 96-well plates coated with 5mg/ml plate bound Ultra-LEAF™ anti-CD3 Ab (OKT3, Biolegend) and 2mg/ml plate bound Ultra-LEAF™ anti-CD28 Ab (CD28.2, Biolegend) at a density of 1 × 105 cells per well, in a 1:1 mix of Aim 5 (Gibco) and RPMI medium (Gibco), supplemented with 10% AB serum (Life Technologies), 100 U/ml penicillin (Roche), 100 mg/ml streptomycin (Roche). After 2 h, cells were either left untreated or were treated with 5 nM LCKi inhibitor (Merck Milipore) for the indicated time periods. Cells were subsequently washed 3 times with medium to remove already secreted IFNγ, and cells were then cultured for 3h in 40 ml fresh control medium or fresh medium containing 5 nM LCK inhibitor. Subsequently, supernatants were collected and IFNγ concentrations were determined using the BD™ Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit, according to the manufacturer’s protocol.
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7

Quantifying Th1/Th2/Th17 Cytokines

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Cytokine concentrations were estimated in culture supernatants using the Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (BD) or sandwich ELISAs (R&D), as indicated.
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8

Cytokine Quantification Using CBA Kit

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Cytokine quantification was performed using a BD Cytometric Bead Array (CBA) Human Th1/Th2/Th17 cytokine kit using supernatants from the ex-vivo IFNγ ELISpot. 35μL of the pooled peptide triplicate supernatant from the DMSO, Fa, Fb, M and N wells were mixed with 5μL aliquot of each cytokine capture bead (human IL2, IL4, IL6, IL10, TNF, IFNγ and IL17A) and 35μL detection reagent (phycoerythrin(PE)-conjugated antibody) for 3 hours at room temperature and protected from light. 800μL of wash buffer was then added and each sample centrifuged at 200g for 5 minutes. The supernatant was discarded and the bead pellet was re-suspended in 200μL wash buffer. Cytokine detection was performed using an LSRII FACS machine (BD), BD FACSDiva software (version 6.0 for Windows) and FlowJo software (version X0.7 for Mac).
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9

Cytokine Release Quantification

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Collected the supernatant during cytotoxicity assays to measure released cytokines using Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit (BD, Franklin Lakes, NJ). The data were analyzed using Flowjo10.8.1 software.
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10

CD8+ T cell activation and IFNγ analysis

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Isolated CD8+ T cells from PBMCs (see above) were activated in 96-well plates coated with 5mg/ml plate bound Ultra-LEAF™ anti-CD3 Ab (OKT3, Biolegend) and 2mg/ml plate bound Ultra-LEAF™ anti-CD28 Ab (CD28.2, Biolegend) at a density of 1 × 105 cells per well, in a 1:1 mix of Aim 5 (Gibco) and RPMI medium (Gibco), supplemented with 10% AB serum (Life Technologies), 100 U/ml penicillin (Roche), 100 mg/ml streptomycin (Roche). After 2 h, cells were either left untreated or were treated with 5 nM LCKi inhibitor (Merck Milipore) for the indicated time periods. Cells were subsequently washed 3 times with medium to remove already secreted IFNγ, and cells were then cultured for 3h in 40 ml fresh control medium or fresh medium containing 5 nM LCK inhibitor. Subsequently, supernatants were collected and IFNγ concentrations were determined using the BD™ Cytometric Bead Array (CBA) Human Th1/Th2/Th17 Cytokine Kit, according to the manufacturer’s protocol.
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