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2 protocols using anti tcrγδ pe

1

Multiparametric Flow Cytometry for Innate Lymphocytes

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EDTA-treated whole blood was incubated using the corresponding monoclonal antibodies: anti-CD3-PC5.5 and anti-CD4-APC-A750 (all from Beckman Coulter, Miami, FL, USA); anti-TCRγδ-PE, anti-NKG2D-PCy7 and anti-CD8-APC (all from BDBiosciences, Franklin Lakes, NJ, USA); and anti-CD56-FITC and anti-CD161-FITC (all from BioLegend, San Diego, CA, USA). Innate subsets were analyzed by flow cytometry using a Dx-Flex Cytometer and Kaluza Software (Beckman Coulter, Miami, FL, USA).
NK and NKT cells were considered CD3-CD56+ and CD3 + CD56+, respectively, gated from lymphocytes. MAIT cells were considered Vα7.2+ and CD161+ gated from CD3 + αβTCR+ T cells. MAIT cells expressing CD4 and CD8 were gated from CD3 + CD4+ or CD8+ lymphocytes, respectively, expressing both Vα7.2 and CD161.
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2

Multiparametric Flow Cytometry Analysis

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Proportions of DN T cells were determined in total blood samples by flow cytometry using a Navios Cytometer (Beckman Coulter, Madrid, Spain). Mouse anti-human monoclonal antibodies were used to identify this population: anti-TCRαβ-FITC, anti-TCRγδ-PE, anti-CD3-PerCP5.5 (BD Biosciences, Madrid, Spain), anti-CD8-PeCy7, anti-CD4-APC, and anti-CD45-APC-Alexa Fluor 750 (Beckman Coulter). Activated T-cells and B-cell phenotype were also tested in the ALPS-FASLG patient. Mouse anti-human monoclonal antibodies were used to identify these populations: anti-HLA-DR-PE, anti-CD3-PerCP5.5, anti-IgD-PE (BD Biosciences), anti-CD19-FITC, and anti-CD27-PC5 (Beckman Coulter).
Plasma levels of IL-10 (Bender MedSystems, LabClinics, Madrid, Spain), sCD25 and sFasL (R&D Systems, Vitro, Madrid, Spain) and vitamin B12 (Beckman Coulter) were measured in duplicate by enzyme-linked immunosorbent assay. Serum immunoglobulin levels (IgG, IgA, IgM) were measured by nephelometry (Beckman Coulter).
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