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Cd3 apc cy7 sp34 2

Manufactured by BD

CD3-APC/Cy7 (SP34-2) is a fluorochrome-conjugated monoclonal antibody used for the detection and identification of human T cells in flow cytometry applications.

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3 protocols using cd3 apc cy7 sp34 2

1

Multiparametric Flow Cytometry of Immune Cells

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Multiparametric flow cytometry was performed on PBMC, LNMC, and cells isolated from RBs using fluorescently labeled monoclonal antibodies cross-reactive in RMs. The following antibodies were used: CD3-APC/Cy7 (SP34-2), CD4-PE-CF594 (L200) CD8-BV711 (RPA-T8), CCR7-FITC (150503), CD45RA-PE/Cy7 (L48), CD95-PE/Cy5 (DX2), Ki67-AlexaFluor700 (B56), CD14-BV650 (M5E2), CD56-BV605 (NCAM16.2), CD62L-PE (SK11), HLA-DR-PerCPCy5.5 (G46.6), CCR5-APC (3A9) from BD Biosciences; CD28-ECD (CD28-2) from Beckman Coulter; CD16-BV421 (3G8), CD4-BV650 (OK-T4), PD-1-BV421 (EH12.2H7), from Biolegend; CD8-APC (DK25) from DAKO. All specimens were acquired on an LSR II (BD Biosciences) and analysis of the acquired data was performed using FlowJo software (Tree Star).
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2

Quantifying Antigen-Specific Immune Responses

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Cell type-specific, antigen-specific immune responses were determined at indicated timepoints by flow cytometry using BAL cells and PBMC. Cells were stimulated overnight in the presence of Golgiplug transport inhibitor (BD; Biosciences).
The following mAb staining T cell panel was used for the dose-ranging study: Intracellular staining: CD3APC-Cy7 (SP34-2, BD; cat# 557757, dilution 1:320); CD69ECD (TP1.55.3, Beckman Coulter; cat# 6607110, dilution 1:50); IFN-γAPC (B27, BD; cat# 554702, dilution 1:320), TNF-αBV650 (Mab11, BD; cat# 563418, dilution 1:25), IL-2PE (MQ1-17H12, BD; cat# 544566, dilution 1:320); Surface staining: CD4PE-Cy5.5 (S3.5, Invitrogen; cat# MHCD0418, dilution 1:80), CD8BV570 (RPA-T8, Biolegend; cat# 301038, dilution 1:160), CD28Cy5-PE (CD28.2, BD; cat# 555730, dilution 1:10), CD45RAPE-Cy7, (L48, BD; cat# 337167, dilution 1:200).
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3

Analyzing Env-specific GC B Cell Responses

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To assess Env-specific GC B cell responses, frozen LN cell suspensions were thawed and washed in R10, then stained with live/dead fixable blue viability dye (Invitrogen), tetramer Env probes in AF488 and BV421 for 30 min at 4°C. Cells were subsequently stained with anti-human CD20 BV570 (2H7, Biolegend), and CD3 APC-Cy7 (SP34–2, BD Biosciences) for an additional 20 min at 4°C. Cells were permeabilized using the transcription factor buffer set (BD Biosciences) and stained intracellularly for anti-human IgG BV786 (G18–145, BD Biosciences), BCL6 PE-Cy7 (K112–91, BD Biosciences), and Ki67 PE (B56, BD Biosciences). Tetramer Env probes were prepared by incubation of 4-fold molar excess of avi-tag biotinylated 1086 Env protein with either streptavidin-conjugated AF488 (Invitrogen) or streptavidin-conjugated BV421 (Biolegend).
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