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2 protocols using cd45ro apc bv421

1

T Cell Phenotyping and Sorting

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The antimouse TCRβ (mTCR)- PerCp-Cy5.5, CD8a-eFluor 450, were purchased from eBioscience. CD3-APC-Cy7, CD4- PE/FITC/APC, 41BB- APC/PE, CD8- PE-Cy7/FITC, OX40- FITC/PE-Cy7, CD62L-PE, and CD45RO-APC/BV421 were purchased from BD Biosciences. CD3-Alexa Fluor 700, CD62L-PE-Cy7, and the live/dead stains- DAPI/PI were purchased from BioLegend.
For FACS sample preparation, cells were harvested and washed with FACS buffer. Cells were resuspended in FACS buffer at a concentration of 1–50 × 106 cells/mL and extracellular fluorescence-conjugated primary antibodies were added and mixed in. After a 20- to 60-minute incubation at 4°C, which was also protected from light exposure, the samples' cells were washed and resuspended with FACS buffer.
The flow cytometry assays were performed on FACSCanto I/II (BD Biosciences) and the acquired data were analyzed with FlowJo software (TreeStar). Cells were sorted to: Live/CD3+, separated for CD4+ or CD8+, TEMRA/TEM/TCM based on sorting out CD62L+/CD45RO (naïve T cells). Cocultures were sorted for enrichment or into single reactive cells based on 41BB+/OX40+ (both double- and single-positive cells), Live/CD3+, separated for CD4+ or CD8+ by SH800S/MA900 instrument (Sony Biotechnology) or by FACSAria II (BD Biosciences).
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2

Multiparametric Flow Cytometry Profiling of T Cell Subsets

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The anti-mouse TCRβ (mTCR)- PerCp-Cy5.5, CD8a-eFluor 450, were purchased from eBioscience. CD3-APC-Cy7, CD4- PE/FITC/APC, 4–1BB- APC/PE, CD8- PE-Cy7/FITC, OX40- FITC/PE-Cy7, CD62L-PE, and CD45RO-APC/BV421 were purchased from BD (Becton Dickinson Biosciences). CD3-Alexa Fluor 700, CD62L-PE-Cy7, and the live/dead stains- DAPI/PI were purchased from Biolegend.
For FACS sample preparation, cells were harvested and washed with FACS buffer. Cells were resuspended in FACS buffer at a concentration of 1e6–50e6 cells/ml and extracellular fluorescent-conjugated primary antibodies were added and mixed in. After a 20–60 min incubation at 4oC, which was also protected from light exposure, the samples’ cells were washed and resuspended with FACS buffer.
The flow cytometry assays were performed on FACSCanto I/II (BD Biosciences) and the acquired data were analyzed with FlowJo software (TreeStar). Cells were sorted to: Live/CD3+, separated for CD4+ or CD8+, TEMRA/ TEM/TCM based on sorting out CD62L+/CD45RO- (T naïve cells). Cocultures were sorted for enrichment or into single reactive cells based on 41BB+/OX40+ (both double and single-positive cells), Live/CD3+, separated for CD4+ or CD8+ by SH800S/MA900 instrument (Sony Biotechnology) or by FACSAria II (BD).
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