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2 protocols using nkp46 bv 421

1

Isolation and Adoptive Transfer of Murine NK Cells

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The MojoSort Mouse NK Cell Isolation Enrichment Kit (BioLegend, 480050) was used to isolate untouched NK cells. Adoptive NK cell transfer into NSG hosts was performed via tail vein injection with a 1:1 donor:recipient ratio. Magnetic enrichment was validated by FC prior to ACT for each purification. Typical purifications were 85–95% pure. Flow cytometry (FC) was performed by treating cells with an Fc-Shield antibody cocktail (αCD16/αCD32) in FACS buffer (Hank’s balanced salt solution [HBSS], 5 mM EDTA, and 2% fetal calf serum [FCS]) using the following antibodies (1:400 dilution): anti-mouse CD45 PE-Cy7 (BD Biosciences, 559864), NK 1.1-BV 785 (BD Biosciences, 108749), and NKP46- BV 421 (BD Biosciences, 562850) for 60 min on ice. Cells were washed and centrifuged at 400 × g for 7 min twice. Cells were stained with 4′,6-diamidino-2-phenylindole (DAPI) and analyzed on a FACSymphony A5 cytometer (BD Biosciences, San Jose, CA, USA). Data were analyzed with FlowJo version 10 (Tree Star, Ashland, OR, USA).
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2

Profiling Circulating Immune Cells Post-Cardiac Bleed

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Blood obtained from cardiac bleeds was used to profile circulating immune cells after red blood cell lysis (155 mM NH4Cl, 10 mM KHCO3, 0.1 mM EDTA, pH 7.3). Cells were stained with the following antibodies: CD8a-PE-Cy7 (53-6.7), CD4-APC-Cy7 (GK1.5), CD69-APC (H1.2F3), CD279-PE (J43), Ly6G-BV421 (1A8), B220 Pe-Cy5, CD103 bv510, CD11b BV605, CD11c Percpm, CD206 APC, CD25 APC, CD27 A-Cy7, CD4 A-Cy7, CD4 Pe-Cy7, CD44 FITC, CD62L BV450, CD69 FITC, CD69 Pe-Cy7, CD8 A-Cy7, CD8 APC, CD8 Pe-Cy5, CD8 Pe-Cy7, CD80 PE, F4/80 Pe-Cy7, FOXP3 FITC, H2-Kd FITC, IFNAR1 PE, IFNg PE, Ly6C-APC, Ly6G BV711, MHC-II BV650, NKG2D Pe-Cy7, NKp46 BV421, PD1 PE, PDL1 BV421, Rat IgG2a FITC, TCRbeta BV510, TNFa FITC (all from BD Biosciences) and Ly6C-APC (HK1.4) (Biolegend). Primary tumors were mechanically and enzymatically digested with 1 mg/mL collagenase I (Sigma) and 30 μg/mL DNAse I (Sigma) at 37 °C to obtain a single cell suspension before red blood cell lysis. Analysis of tumor-infiltrating lymphocytes was done as above. Analysis of immune cell populations was performed by flow cytometry using a FACSCanto II (BD Biosciences, USA). Data was analyzed using Flowjo software (TreeStar, USA).
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