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Pe conjugated mouse igg isotype control

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The PE-conjugated mouse IgG isotype control is a laboratory reagent used as a reference control in flow cytometry experiments. It is a mouse immunoglobulin G (IgG) antibody conjugated with the fluorescent dye Phycoerythrin (PE). This control is used to establish background fluorescence levels and to set appropriate gates and thresholds during the analysis of cell samples.

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4 protocols using pe conjugated mouse igg isotype control

1

Multiparameter Flow Cytometry Immunophenotyping

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This study used the following mAbs and reagents: Allophycocyanin (APC)-Cy7-conjugated anti-CD3, APC-conjugated anti-CD3, APC-conjugated anti-CD69, and fluorescein isothiocyanate (FITC)-conjugated anti-CD45, FITC-conjugated anti-CD56, FITC-conjugated anti-CD107a, FITC-conjugated anti-IFN-γ, phycoerythrin (PE)-conjugated anti-CD3, PE-conjugated anti-CD56, PE-conjugated anti-CD69, PE-Cy7-conjugated anti-TNF-α, PerCP-conjugated anti-CD3, PerCP-conjugated anti-CD45, FITC-conjugated mouse IgG isotype and PE-conjugated mouse IgG isotype control (all from Becton Dickinson, San Diego, CA). Cells were stained with combinations of appropriate mAb for 20 minutes at 4°C. Stained cells were analyzed on a Navios flow cytometer using Kaluza software (version 1.1; Beckman Coulter, Brea, CA).
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2

Multiparameter Flow Cytometry Analysis of Immune Cells

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The following monoclonal antibodies (mAbs) and reagents were used in this study: fluorescein isothiocyanate (FITC)-conjugated Lineage Cocktail 1(CD3, CD14, CD16, CD19, CD20, CD56), phycoerythrin (PE)-conjugated anti-CD123, anti-CD86, and anti-CD274; allophycocyanin (APC)-conjugated anti-CD11c, anti-CD86, and anti-CD274; BV421-conjugated anti-HLA-DR; Alexa Fluor 647-conjugated anti-IFN-α; PE-conjugated anti-interleukin-12 (anti-IL-12), PE-Cy7-conjugated anti-tumor necrosis factor-α (anti-TNF-α) mAb, and PE-conjugated mouse IgG isotype control (all from Becton Dickinson, San Diego, CA, USA). The cells were stained with combinations of the appropriate mAbs for 20 minutes at 4°C. The stained cells were analyzed on a Navios flow cytometer using Kaluza software (version 1.5a; Beckman Coulter, Brea, CA, USA).
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3

Cytotoxicity of NK-92 cells against cancer cells

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αFR expression on the surface of cancer cells was investigated by flow cytometry using PE-conjugated mouse anti-human FOLR1 antibody (R&D SYSTEMS, Minneapolis) and PE-conjugated mouse IgG isotype control (BD Biosciences). Flow cytometry was performed using a BD FACS Canto II flow cytometer (BD Biosciences), and the data were analyzed using CellQuest Pro software (BD Biosciences). The cytotoxicity of the effector cells (NK-92 cells and transfected NK-92 cells) was measured using the LDH cytotoxicity assay kit (DOJINDO, Tokyo, Japan). After coculture of the target cells and the effector cells for 18 hours in 96-well plates at different effector-to-target (E/T) ratios, the supernatants were collected. According to the manufacturer’s instructions, the LDH content in the supernatants was detected, and the specific cell lysis of the effector cells at different E/T ratios was calculated.
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4

Cell Surface Marker Profiling by Flow Cytometry

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Cells were treated with Acutase (Innovative Cell Technologies, San Diego, CA, USA) at 37 °C for 10 min. Dissociated cells were rinsed twice with FACS buffer (PBS containing 5% fetal bovine serum) by centrifugation at 300× g for 5 min. The cells were labeled with fluorophore-conjugated antibodies on ice for 30 min. Finally, the cells were rinsed twice with FACS buffer by centrifugation at 300× g for 5 min, and assayed using a FACSCalibur system (Becton Dickson, San Jose, CA, USA) according to the manufacturer’s instructions. Data were analyzed using the FlowJo software, version 7.2.5 (Tree Star, Inc., Ashland, OR, USA). Phycobiliproteins (PE)-conjugated mouse IgG isotype control (1:100, BD Biosciences, Bedford, MA, USA), PE-mouse anti human SSEA4 (1:100, BD Biosciences, Bedford, MA, USA), allophycocyanin (APC)-conjugated mouse IgG isotype control (1:100, BD Biosciences, Bedford, MA, USA), and APC-mouse anti human CXCR4 antibody (1:100, BD Biosciences, Bedford, MA, USA) were used in this study.
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