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Cd57 pe

Manufactured by BD

CD57-PE is a laboratory reagent used for the detection and analysis of CD57-positive cells in biological samples. It is a fluorochrome-conjugated monoclonal antibody that binds specifically to the CD57 antigen, which is expressed on a subset of natural killer cells and a small population of T cells. The CD57-PE reagent is designed for use in flow cytometry applications to identify and quantify CD57-positive cell populations within a sample.

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2 protocols using cd57 pe

1

Comprehensive Flow Cytometry Immunophenotyping

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Different immune cell subpopulations were immunophenotyped with flow cytometry from fresh PB samples with 6 panels of different cell-surface markers, including the following immune checkpoint receptors and cytotoxicity and migration markers: CD3-PerCP-Cy5.5 (BD, catalog 332771), CD4-PE-Cy7 (BD, catalog 560649), CD45-APC-H7 (BD, catalog 560178), CD8-BV510 (BD, 563919), CD56-BV421 (BD, 562751), CXCR1-FITC (BioLegend, catalog 341606), CD16-PE (BD, 561313), TCR γδ-APC (BD, catalog 555718), PD1-FITC (BD, catalog 557860), LAG3-PE (BD, catalog 125209), ICOS-PE-Cy7 (eBioscience, catalog 25-9948-42), CTLA-4–APC (BD, catalog 560938), HLA-DR-BB515 (BD, catalog 560938), CD27-PE (BD, catalog 555441), CD25-PE-Cy7 (BD, catalog 561405), CD11b-APC (BD, catalog 550019), NKG2C-AF488 (R&D Systems, catalog FAB138G), CD161-PE (BD, catalog 556081), NKG2D-PE-Cy7 (BD, catalog 562365), NKG2A-APC (R&D Systems, catalog FAB1059A), DNAM-BB515 (BD, catalog 565152), CD57-PE (BD, catalog 560844), NKp46-PE-Cy7 (BD, catalog 562101), NKp30-AF647 (BD, 558408), CXCR3-AF488 (BD, catalog 561730), CCR7-PE (R&D Systems, catalog FAB197P), CD45RO-PE-Cy7 (BD, catalog 560608), and CXCR4-APC (BD, catalog 560936). CD45+ lymphocytes were acquired with the BD FACS Verse, and the data were analyzed with FlowJo, version 10.4. The results are shown in Supplemental Table 1.
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2

Immunophenotyping of NK and Senescent T-cells in Early MS

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Peripheral blood mononuclear cells (PBMC) were isolated from blood samples taken in EDTA collection tubes using Lymphoprep, and subsequently cryopreserved in fetal calf serum with 10% DMSO. The gating strategy of the study is shown in Figure 1. NK-cell immunophenotype was evaluated in early MS patients (n=120) as previously reported [12] , using the following conjugated monoclonal antibodies: anti-CD3-PerCP, anti-CD56-APC (BD Biosciences), NKG2C-PE (R&D Systems), and DAPI. A selected panel of immunological markers of differentiated /senescent T-cells previously related to CMV infection (CD27-CD28-/CD57+/LILRB1+ T-cells) [16] [17] [18] were evaluated in a subcohort of MS patients (early MS, n=35; non-early MS, n=32) and controls (n=32) stratified for CMV serology. Samples were stained by indirect immunofluorescence with LILRB1 HP-F1and anti-mouse Ig-PE-Cy7 (Biolegend), washed and further incubated with anti-CD3-APC-H7, anti-CD27-PERCP-Cy5.5, anti-CD28-PE-CF594, CD57-PE (BD Biosciences), and anti-CD4-FITC (eBioscience), anti-CD8-BV510 (Biolegend). All samples were analyzed at the Flow Cytometry Unit (UPF/CRG, Barcelona) with an LSRII-Fortessa flow cytometer (BD Biosciences).
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