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3 protocols using anti hla dr g46 6

1

Immune Cell Phenotyping under BSL 2+

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Immune cell phenotyping was performed under BSL 2+ conditions by incubating 200 μL of fresh whole blood in polystyrene tubes with two different fluorochrome-labeled antibody panels for 20 min in the dark [Panel 1: anti-CD3 (SP34-2, #562877), anti-CD4 (L200, #560836), anti-CD8 (SK1, #341051); anti-CD19 (HIB19, #555415), anti-CD38 (HIT2, #555460), and anti-HLA-DR (G46-6, #555811) from BD, anti-CD20 (2H7, #47-0209-42) from eBioscience, and anti-CD27 (O323, #302838) from BioLegend. Panel 2: anti-CD3 (UCHT1, #557943), anti-CD11c (O33-782, 561355), anti-CD14 (M5E2, #565283), anti-CD19 (HIB19, #557921), anti-CD123 (7G3, #554529), and anti-HLA-DR (G46-6, #560651) from BD; anti-CD16 (CB16, #47-1068) and anti-CD56 (MEM188, #17-0569) from eBioscience, and anti-CD20 (2H7, #302332) from BioLegend]. Flow cytometry was performed on an LSRII (BD) and data was analyzed using FlowJo software version 9 (Tree Star). T cells expressing both HLA-DR and CD38 were considered activated.
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2

Phenotypic Profiling of Activated T Cells

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All antibodies were mouse anti-human monoclonal antibodies (mAb). PE-Cy5-conjugated anti-CD4 (OKT4) were from Beckman Coulter (Miami, FL). PE-conjugated anti-PD-1 (MIH4), fluorescein isothiocyanate (FITC)-conjugated anti-CD25 (M-A251), anti-CD69 (FN50), and anti-HLA-DR (G46-6) were from BD PharMingen (Franklin Lakes, NJ). PE- or PE-Cy5-conjugated IgG1 (679.1Mc7) (Beckman Coulter), PE-conjugated IgG2a (eBM2a; eBio-science), and FITC-conjugated IgG1 (P3) (eBioscience) were used as IgG isotype controls. PBMCs (0.5 × 106) were incubated in wash buffer (PBS/2.5% fetal bovine serum [FBS]) with appropriate amounts of mAb on ice for 30 minutes. Cells were washed and were immediately analyzed on an EPICS XL-MCL flow cytometer (Beckman Coulter).
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3

Allergen and Rhinovirus Detection Protocol

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Allergens: Purified allergens (natural Der p 1, natural Der p 2, and recombinant H22-Fel d 1) with low endotoxin content (<25 IU/μg) were obtained from Indoor Biotechnologies, Inc. (Charlottesville, VA). Rhinovirus Preparation: FDA-approved RV-16 pool was kindly provided by Dr. Ronald Turner (University of Virginia). Flow Cytometry Antibodies: Fluorochrome-labeled monoclonal antibodies used for flow cytometry were: Lin3 cocktail (anti-CD3, -CD14, -CD19 and -CD20), Lin1 cocktail (anti-CD3, -CD14, -CD16, -CD19, -CD20 and -CD56), anti-CD123 (clone 6H6), and anti-HLA-DR (G46-6) purchased from BD Biosciences (San Jose, CA); anti-TSLPR (1B4), anti-CD1c (L161), anti-CD63 (H5C6) and anti-CD203c (NP4D6) (Biolegend, San Diego, CA); anti-CD11c (B-ly6) and anti-FcεRIα (CRA–1) (eBiosciences, San Diego, CA); and anti-Syk (4D10.1) (EMD Millipore, Billerica, MA). Compensation beads were purchased from BD Biosciences. Aqua viability dye was used to determine cell viability (Invitrogen, Carlsbad, CA). Other Reagents: Mouse anti-FcεRIα monoclonal antibody (clone AER-37) was purchased from Biolegend and rabbit anti-human IgE antibody was obtained from Bethyl Laboratories, Inc. (Montgomery, TX). BD FACS lysing solution for fresh whole blood staining was purchased from BD Biosciences.
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