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Phycoerythrin pe

Manufactured by BioLegend
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Phycoerythrin (PE) is a fluorescent protein derived from red algae. It is a bright, photostable fluorescent dye commonly used in flow cytometry and other fluorescence-based applications to label and detect target molecules.

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4 protocols using phycoerythrin pe

1

HLA-E Peptide Binding Analysis

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HLA-E restricted self-peptides, identified in this study, were synthesized and purchased from Thermo Fisher Scientific (Ulm, Germany) and dissolved in DMSO at a concentration of 100 mg/mL. For ELISA and affinity purification of soluble (s) HLA-E molecules the anti-HLA class I monoclonal antibody (mab) (clone W6/32) (AbD Serotec, Düsseldorf, Germany) or the mab anti-V5 (Life Technologies, Darmstadt, Germany) was used. The mab anti-β2m conjugated to horseradish peroxidase (HRP) (Dako, Hamburg, Germany) was used for detection in ELISA. The mab anti-HLA-E (clone 3D12) labeled with phycoerythrin (PE) (BioLegend, San Diego, USA) was used for flow cytometric analysis.
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2

Flow Cytometry Analysis of TLR2 and TLR4 Expression

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MGFs (1 × 106 cells in 100 μL) were incubated with anti-mouse CD282 (TLR2) phycoerythrin (PE) (BioLegend, San Diego, CA, USA, Cat: 148604), anti-mouse CD284 (TLR4) phycoerythrin (PE) (BioLegend, Cat: 117605), or isotype control antibody phycoerythrin (PE) (BioLegend, Cat: 400508) and analyzed by flow cytometry using a MACSQuant analyzer and MACSQuantify software version 2.4 (Miltenyi Biotec, Tokyo, Japan).
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3

Antibody Panel for Immune Phenotyping

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Phycoerythrin (PE)-, PE/Cy7, Alexa 647, allophycocyanin (APC)-, or APC/Cy7-conjugated anti-mouse CD4 (GK1.5), CD8 (53-6.7), CD25 (3C7), CD45RB (C363-16A), CD25 (3C7), CD44 (IM7), CD117 (2B8), TCRVβ (H57-597), TGF-β1 (TW7-16B4), FoxP3 (MF-14), and acetylated lysine (15G10; no. 623402) were purchased from BioLegend (San Diego, CA). Rabbit NAC1 (no. 4183), HDAC6 (no. 7612), and β-actin (no. 8457) antibodies were purchased from Cell Signaling (Beverly, MA). Rabbit anti-NAC1 antibody (ab29047) for immunoprecipitation was obtained from Abcam (Cambridge, MA). Mouse HDAC9 (no. sc-398003) and HDAC11 (no. sc-390737) antibodies were purchased from Santa Cruz Biotechnologies (Dallas, TX). Cycloheximide were purchased from Sigma-Aldrich Corporation (Sigma-Aldrich, St. Louis, MI).
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4

Flow Cytometry Analysis of MSC Markers

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Surface markers were selected according to a previous report [31 (link)]. The cells were harvested by treatment with 0.05% trypsin-EDTA at the end of the third passage. For flow cytometry, the detached cells were washed and resuspended in PBS. Aliquots of 2 × 105 cells were labeled with fluorescein isothiocyanate (FITC) (BioLegend, San Diego, USA), phycoerythrin (PE) (BioLegend), and PE/CY5-conjugated monoclonal antibodies including an isotype control, anti-CD44-FITC (AbDSerotec, Oxford, UK), anti-CD29-PE/CY5, and anti-CD45-PE (BioLegend). Flow cytometry was performed with a FACSCalibur flow cytometer (Becton Dickinson, USA). In total, 10,000 events per sample were collected into listmode files and analyzed using WinMDI 2.9 analysis software.
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