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V plex human ifnγ kit

Manufactured by Mesoscale

The V-PLEX Human IFNγ Kit is a multiplex immunoassay kit designed to measure the concentration of interferon-gamma (IFNγ) in human biological samples. The kit utilizes Mesoscale's electrochemiluminescence detection technology to provide a sensitive and quantitative measurement of IFNγ levels.

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3 protocols using v plex human ifnγ kit

1

CD70 Costimulation Enhances T Cell Activation

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The costimulatory capability of CD70 protein on primary human T cells activation upon T cell receptor engagement was evaluated using plate-bound anti-CD3 antibody (Ultra-LEAF(TM) purified anti-human CD3 [OKT3], Biolegend, # 317326) as the TCR ligand. Anti-CD3 antibody and various concentration of CD70 protein in sterile PBS were added into MaxiSorp Immuno plates (Thermo Scientific, #439454) and incubated at 4 °C overnight. Next day the plates were washed three times with fresh PBS. Human Peripheral Blood pan-T cells (StemCell, # 70024) were added into the precoated plates and incubated at 37 °C, 5% CO2 for 3 days. The activation of T cells was evaluated by measuring the IFNγ production with V-PLEX Human IFN-γ Kit (Meso Scale Diagnostics, #K151QOD-4) following the manufacturer’s protocol. The data represent three independent biological replicates (mean± standard error).
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2

T Cell Activation by Dendritic Cells

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Primary human CD3+ pan T cells were freshly isolated from PBMCs from healthy donors using Dynabeads™ Untouched™ Human T Cells isolation kit (Thermo Fisher Scientific) and mixed with previously frozen monocyte-derived DCs from three different donors (HemaCare) at a 10:1 T to DC ratio. To this end, 105 T cells/well and 104 DCs/well were plated in 96-well round-bottom plates (Corning #4515). The cell mixture was then incubated with test antibody for 6 days. IFNγ levels in the supernatant were measured by V-PLEX Human IFNγ Kit (Meso Scale Discovery).
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3

Assaying Endometrial Tumor Immunity

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Surgically resected primary endometrial tumors (Avaden Biosciences) were dissociated into a single-cell suspension using a Human Tumor Dissociation Kit (Miltenyi Biotec) according to manufacturer’s instructions and analyzed by flow cytometry for immune infiltration and surface marker expression. Cells were placed into 96-well round-bottom plates and incubated with 10 μg/ml test antibody in the presence of 0.01 μg/ml soluble anti-CD3 antibody (Clone Hit3a) for 6 days. IFNγ levels in the supernatant were measured by V-PLEX Human IFNγ Kit (Meso Scale Discovery).
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