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3 protocols using ccr7 bv421 clone g043h7

1

Purification of Memory Immune Cells

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Monocytes were isolated from PBMCs by positive selection using CD14
magnetic microbeads (Miltenyi Biotech). CD14-depleted fractions were stained on
ice for 15–20 min with the following fluorochrome-labeled mouse
monoclonal antibodies: CD8-PE–Cy5 (clone B9.11; cat. no. A07758),
CD14-PE–Cy5 (clone RMO52; cat. no. A07765), CD16-PE–Cy5 (clone
3G8; cat. no. A07767), CD45RA-FITC (clone ALB11; cat. no. A07786) from Beckman
Coulter, CD19-PE–Cy7 (clone SJ25C1; cat. no. 341113), CD25–PE
(clone M-A251; cat. no. 555432) from BD Biosciences, CD4–PE–Texas
Red (clone S3.5; cat. no. MHCD0417) from ThermoFisher Scientific,
CCR7–BV421 (clone G043H7; cat. no. 353208) from BioLegend, Alexa Fluor
647-conjugated goat anti-human IgG (cat. no. 109-606-170) from Jackson
ImmunoResearch. IgG+ memory B cells were sorted from CD19+B cells to over 98% purity on a FACSAria III (BD). Memory CD4+ T
cells were sorted to over 98% purity after exclusion of naïve
CD4+ T cells (CD45RA+CCR7+) and
CD8+, CD14+, CD16+, CD19+,
CD25bright cells.
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2

Comprehensive Flow Cytometry Immune Profiling

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Flow cytometry staining was performed as previously described (57 (link)–59 (link)). In brief, 1 × 106 PBMCs were stained with Zombie (BioLegend) fixable viability dye for 30 min at 4°C, then labeled with antibodies to surface markers in Brilliant Stain buffer (BD Biosciences) for 30 min at 4°C. Subsequently samples were stained with 25 μg/mL cholera toxin B subunit FITC conjugate (CTB-FITC) (Sigma-Aldrich), fixed for 1 h in 2% paraformaldehyde, and stained for 2 h with 50 μg/mL filipin complex from Streptomyces filipinensis (Sigma-Aldrich) before reading the samples on a BD LSRFortessa X-20 cytometer using BD FACSDiva software. Compensation was performed using anti-mouse IgGκ/negative control compensation particles set (BD Biosciences) or OneComp eBeads (ThermoFisher Scientific), with the exception of viability dyes and filipin which were performed with single stained and unstained cells. Data was analyzed using FlowJo (Tree Star).
Antibodies for surface markers: CD45RA-BUV737 (clone HI100, BD Biosciences, 584442) CD27–APC (clone M-T271, BioLegend, 356409), CD4-AF700 (clone OKT4, eBioscience, 56-0048-82), CCR7-BV421 (clone G043H7, BioLegend, 353207), CD69-BV510 (clone FN50, BioLegend, 310936), CD8-BV711 (clone RPA-T8, BioLegend, 301044), CD3-BV785 (clone OKT3, BioLegend, 317330), CD25-PE (clone M-A251, BioLegend, 356104), CD127-PE-Cy7 (clone A019D5, BioLegend, 351320).
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3

Purification of Memory Immune Cells

Check if the same lab product or an alternative is used in the 5 most similar protocols
Monocytes were isolated from PBMCs by positive selection using CD14
magnetic microbeads (Miltenyi Biotech). CD14-depleted fractions were stained on
ice for 15–20 min with the following fluorochrome-labeled mouse
monoclonal antibodies: CD8-PE–Cy5 (clone B9.11; cat. no. A07758),
CD14-PE–Cy5 (clone RMO52; cat. no. A07765), CD16-PE–Cy5 (clone
3G8; cat. no. A07767), CD45RA-FITC (clone ALB11; cat. no. A07786) from Beckman
Coulter, CD19-PE–Cy7 (clone SJ25C1; cat. no. 341113), CD25–PE
(clone M-A251; cat. no. 555432) from BD Biosciences, CD4–PE–Texas
Red (clone S3.5; cat. no. MHCD0417) from ThermoFisher Scientific,
CCR7–BV421 (clone G043H7; cat. no. 353208) from BioLegend, Alexa Fluor
647-conjugated goat anti-human IgG (cat. no. 109-606-170) from Jackson
ImmunoResearch. IgG+ memory B cells were sorted from CD19+B cells to over 98% purity on a FACSAria III (BD). Memory CD4+ T
cells were sorted to over 98% purity after exclusion of naïve
CD4+ T cells (CD45RA+CCR7+) and
CD8+, CD14+, CD16+, CD19+,
CD25bright cells.
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