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Anti cd8 pacific orange clone rpa t8

Manufactured by BioLegend

Anti-CD8 Pacific-Orange (clone RPA-T8) is a fluorescently labeled monoclonal antibody that binds to the CD8 cell surface glycoprotein. CD8 is expressed on a subset of T cells and plays a role in the immune response.

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2 protocols using anti cd8 pacific orange clone rpa t8

1

Comprehensive Immune Cell Profiling

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CD4+ T cells were defined as CD3+CD4+; CD8+ T cells were defined as CD3+CD8+; CD8+ naïve cells were defined as CD8+CD45RO-CD62L+; CD4 Tregs were defined as CD3+CD4+CD25med-highCD127low; CD4 conventional T cells (Tcons) were defined as CD3+CD4+CD25low-negCD127med-high; natural killer (NK) cells as CD56+CD3; and B cells as CD19+. Aliquots of anti-coagulated whole blood (ethylenediaminetetraacetic acid [EDTA]) were incubated with fluorophore-conjugated monoclonal antibodies: anti-CD3 V450 (clone UCHT1, BD Biosciences), anti-CD4 APC-H7 (clone RPA-T4, BD Biosciences), anti-CD8 Pacific-Orange (clone RPA-T8, Biolegend), anti-CD25 PE-Cy7 (clone M-A251, BD Biosciences), anti-CD127 PE-Cy5 (clone eBioRDR5, eBioscience) for T-cell subsets; anti-CD56 PE (clone B159, BD Biosciences), anti-CD3 V450 (clone UCHT1, BD Biosciences) for NK/NKT cells, and anti-CD19 APC (clone HIB19, BD Biosciences) for B cells. RBC lysis with BD Pharm Lyse was performed either prior to or following incubation with conjugated antibodies. Flow cytometry analysis utilized FACSCanto II (BD Bioscience) or the Fortessa (BD Bioscience) and FACSDiva software (BD Bioscience). There was a change in the use of flow cytometry machines over the course of the study. Both flow cytometers were validated and results were comparable.
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2

Comprehensive Immune Cell Profiling

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Immune reconstitution assays: CD4+ T cells were defined as CD3+CD4+; CD4+ naïve cells were defined as CD4+, CD45RO; CD4+ memory cells were defined as CD4+CD45RO+; CD8+ T cells were defined as CD3+CD8+; CD8+ naïve cells were defined as CD8+CD45ROCD62L+; CD8+ memory cells were defined as CD8+CD45RO+; CD8+ terminal effector cells were defined as CD8+CD45ROCD62L; CD4 regulatory T cells (Treg) were defined as CD3+CD4+CD25med-highCD127low; NK cells as CD56+CD3; and B cells as CD19+. Fifty μl whole blood (15% EDTA) in 5 ml polystyrene round-bottom reaction tubes was incubated with fluorophore-conjugated monoclonal antibodies: anti-CD3 V450 (clone UCHT1, BD Biosciences), anti-CD4 APC-H7 (clone RPA-T4, BD Biosciences), anti-CD8 Pacific-Orange (clone RPA-T8, Biolegend), anti-CD25 PE-Cy7 (clone M-A251, BD Biosciences), anti-CD127 PE-Cy5 (clone eBioRDR5, eBioscience), anti-CD62L APC (clone DREG-56, BD Biosciences), CD45RO FITC (clone UCHL1, BD Biosciences) for T cell subsets; anti-CD56 PE (clone B159, BD Biosciences), anti-CD3 V450 (clone UCHT1, BD Biosciences) for NK/NKT cells; anti-CD19 APC (clone HIB19, BD Biosciences) for B cells. RBC lysis with 500 μl 1× BD Pharm Lyse followed. Immune reconstitution flow cytometry analysis utilized FACSCanto II (BD Bioscience) and FACSDiva software (BD Bioscience).
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