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5 protocols using cd8 bv650 rpa t8

1

Phenotypic Analysis of Memory CD8 T Cells

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Ten million PBMCs were stained with fixable viability dye eFluor 506 (eBioscience) and with anti-human CD3-Alexa Fluor 700 (UCHT1; BD Pharmingen), CD4-APCeFluor 780 (RPA-T4; eBioscience), CD8-BV650 (RPA-T8; BioLegend), CD45RA-eFluor 450 (HI100; eBioscience), and CCR7-PerCP Cy5.5 (UCHL1; BioLegend) as previously described (29 (link)). Briefly, cells were incubated in PBS containing 10% FBS for 10 min at 4°C and then stained with PBS containing the conjugated Abs for 30 min at 4°C. After two washes in PBS, cells were resuspended in PBS, and cell sorting was performed on a BD FACSAria III/Fusion Cell Sorter (Becton Dickinson). A total of 100,000 memory CD8 T cells (see Supplemental Fig. 1A for gating strategy) was sorted into TRIzol LS reagent (Invitrogen).
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2

Multiparametric Phenotyping of MAIT Cells

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PBMCs were stained with 1:100 MR1 5-OP-RU or 6-FP (as a control) tetramer for 40 min at room temperature. After 40 min, incubation cells were also stained with fixable viability dye eFluor 506 (eBioscience) and with combinations of anti-human CD3-Alexa Fluor 700 (UCHT1; BD Pharmingen), CD4-allophycocyanin-eFluor 780 (RPA-T4; eBioscience), CD8-BV650 (RPA-T8; BioLegend), Vα7.2-PE-Cy7 (3C10; BioLegend), CD161-allophycocyanin (HP-3G10; eBioscience), TIGIT-PerCP-eFluor710 (MBSA43; eBioscience), CXCR6-PE Dazzle594 (K041E5; BioLegend), CCR1-PerCP Cy5.5 (5F10B29; BioLegend), CD243-BV421 (UIC2; BD Biosciences), CXCR4-PE Dazzle 594 (12G5; BioLegend), CD127-FITC (eBioRDR5; eBioscience), CD14-V500 (M5E2; BD Biosciences), CD14-BV421 (HCD14; BioLegend), and CD19-V500 (HIB19; BD Biosciences) for 30 min at room temperature. After two washes in PBS, cells were resuspended in PBS and cells were acquired on a LSRII Cytometer (Becton Dickinson).
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3

Multiparametric Flow Cytometry Analysis of Activated CD4+ T Cells

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PBMCs were thawed and 1 million were added to a round-bottom 96-well plate and stimulated with the respective antigens (peptide pools, Mav and Mtb lysates, PHA and DMSO control). Plates were incubated at 37°C in a humidified CO2 incubator for 20-24 hrs. Plates were centrifuged and cells were resuspended in PBS with 10% (v/v) FBS and incubated at 4°C for 10 min. Cells were then stained with fixable viability dye eFluor506 (eBioscience) and an antibody mixture containing anti-human CD3-AF700 (UCHT1; ThermoFisher), CD4-APCeFluor780 (RPA-T4; eBioscience), CD8-BV650 (RPA-T8; BioLegend), CD14-V500 (M5E2; BD Bioscience), CD19-V500 (HIB19; BD Bioscience), CD25-PerCPCy5.5 (BC96; BioLegend), CD69-PECy7 (FN50; eBioscience), CD137-APC (4B4-1; BioLegend), CD154-FITC (TRAP1; BD Bioscience), OX40-BV421 (Ber-ACT35; BioLegend), and PD-L1-PE (29E.2A3; BioLegend) for 30 min at 4°C. Cells were washed, resuspended in PBS and acquired on a BD LSR II flow cytometer (BD Biosciences). Analysis to compare frequencies of activated CD4+ T cells was completed on FlowJo. The total number of CD4+ T cells expressing combinations of activation markers was determined with background values (as determined from the medium alone control) subtracted. The gating strategy is found in Figure S1A.
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4

Phenotypic Analysis of Memory CD8 T Cells

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Ten million PBMCs were stained with fixable viability dye eFluor 506 (eBioscience) and with anti-human CD3-Alexa Fluor 700 (UCHT1; BD Pharmingen), CD4-APCeFluor 780 (RPA-T4; eBioscience), CD8-BV650 (RPA-T8; BioLegend), CD45RA-eFluor 450 (HI100; eBioscience), and CCR7-PerCP Cy5.5 (UCHL1; BioLegend) as previously described (29 (link)). Briefly, cells were incubated in PBS containing 10% FBS for 10 min at 4°C and then stained with PBS containing the conjugated Abs for 30 min at 4°C. After two washes in PBS, cells were resuspended in PBS, and cell sorting was performed on a BD FACSAria III/Fusion Cell Sorter (Becton Dickinson). A total of 100,000 memory CD8 T cells (see Supplemental Fig. 1A for gating strategy) was sorted into TRIzol LS reagent (Invitrogen).
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5

Multiparametric Phenotyping of MAIT Cells

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PBMCs were stained with 1:100 MR1 5-OP-RU or 6-FP (as a control) tetramer for 40 min at room temperature. After 40 min, incubation cells were also stained with fixable viability dye eFluor 506 (eBioscience) and with combinations of anti-human CD3-Alexa Fluor 700 (UCHT1; BD Pharmingen), CD4-allophycocyanin-eFluor 780 (RPA-T4; eBioscience), CD8-BV650 (RPA-T8; BioLegend), Vα7.2-PE-Cy7 (3C10; BioLegend), CD161-allophycocyanin (HP-3G10; eBioscience), TIGIT-PerCP-eFluor710 (MBSA43; eBioscience), CXCR6-PE Dazzle594 (K041E5; BioLegend), CCR1-PerCP Cy5.5 (5F10B29; BioLegend), CD243-BV421 (UIC2; BD Biosciences), CXCR4-PE Dazzle 594 (12G5; BioLegend), CD127-FITC (eBioRDR5; eBioscience), CD14-V500 (M5E2; BD Biosciences), CD14-BV421 (HCD14; BioLegend), and CD19-V500 (HIB19; BD Biosciences) for 30 min at room temperature. After two washes in PBS, cells were resuspended in PBS and cells were acquired on a LSRII Cytometer (Becton Dickinson).
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