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Tnfα pe clone mp6 xt22

Manufactured by BD

The TNFα-PE (clone MP6-XT22) is a flow cytometry reagent that detects the presence of tumor necrosis factor alpha (TNFα) in biological samples. It consists of an anti-TNFα monoclonal antibody conjugated to the fluorescent dye R-Phycoerythrin (PE). This reagent can be used to identify and quantify TNFα-expressing cells in various cell types and experimental conditions.

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2 protocols using tnfα pe clone mp6 xt22

1

Quantifying Antigen-Specific T Cell Responses

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2×106 cells from single-cell suspensions were incubated at 37°C in RPMI 1640 complete media containing 2% FBS, 1μg/ml brefeldin A and 1μM Site I peptide (206SAINNYAQKL215) or H-2Kb/HSV glycoprotein B (gB) peptide (498SSIEFARL505). Following a 4-hour incubation, cells were stained for CD8 and CD90.1. The Cytofix/Cytoperm kit (BD Pharmingen) was used to permeabilize and intracellularly stain cells with IFNγ-FITC (clone XMG1.2) and TNFα-PE (clone MP6-XT22) antibodies per the manufacturer’s instructions. Site I-reactive T cells was calculated by subtracting the proportion of gB peptide responders in parallel samples.
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2

Multiparameter Identification of Monocyte Subsets

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Markers used to identify monocyte/macrophage subsets included: F4/80-PerCP Cy5.5 or APC (clone BM8; eBioscience & Biolegend), Ly6C-FITC, PE or APC-Cy7 (clone AL-21; BD Biosciences), CCR2-PE or APC (Clone 475301; R&D Systems), MHC class II-PE (clone M5/114.15.2; BD Biosciences), CD11c-APC (clone HL3; BD Biosciences), CD206-PE (C-type Mannose Receptor 1, clone MR5D3; AbD Serotec), CD14-PE (clone Sa2–8; eBioscience), MerTK-APC (clone 108928; R&D Systems) and CD64-PE (clone X54-5/7.1.1; BD Biosciences). Surface FcγRII/III was blocked with 2.4G2 antibody (BD Biosciences). Cells were surface-stained for 30 minutes on ice in staining buffer (1x DPBS/1% FCS). Where indicated, cells were fixed for 30 minutes, treated with 1x permeabilization wash (Cytofix/Cytoperm Kit; BD Biosciences) and intracellularly stained with TNF-α-PE (clone MP6-XT22; BD Biosciences).
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