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Apc conjugated anti cd11b monoclonal antibody

Manufactured by BD

The APC-conjugated anti-CD11b monoclonal antibody is a laboratory reagent used for the detection and analysis of CD11b-expressing cells, such as monocytes and macrophages, in various research applications. The antibody is conjugated with the fluorescent dye Allophycocyanin (APC) to enable flow cytometric detection and quantification of CD11b-positive cells.

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4 protocols using apc conjugated anti cd11b monoclonal antibody

1

Mitigating Hematopoietic Differentiation via miR-193a

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To determine the effect of miR-193a on the function of stromal cells to support hematopoietic precursor cells in their primitive state, we first plated HS27A-193a or HS27A-Control cells 2 ml media (105 each well) in six-well adherent plates. Sixteen hours later, 105 U937-Notch1 (or control U937-pCDNA) were suspended in 0.5 ml of media and added to the adherent cells. All Trans-Retinoic Acid (ATRA) was added at 25 µM final concentration to induce differentiation. Ninety-six hours after coculture, all cells (adherent and nonadherent) were harvested by EDTA treatment and stained with APC-conjugated anti-CD11b monoclonal antibody (BD Biosciences) or appropriate isotype control. Fluorescence-activated cell sorting (FACS) analysis was performed on a FACS-Calibur on the U937 cells population by excluding the HS27A cells by GFP positivity.
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2

Flow Cytometric Analysis of CD11b Expression

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For flow cytometry, cells were fixed with 4 % paraformaldehyde in PBS for 10 min and then blocked with 1 % BSA in PBS for 10 min at room temperature. Fixed, blocked cells were incubated with APC-conjugated anti-CD11b monoclonal antibody (BD PharMingen) for 15 min on ice, and cells were washed 3 times with 1 % BSA in PBS. Staining was analyzed using a FACS Calibur instrument (BD PharMingen).
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3

Quantifying Monocyte Surface Markers

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Cells were isolated and blocked with 1% BSA in PBS for 10 min at room temperature. Fixed and blocked cells were incubated with APC-conjugated anti-CD11b monoclonal antibody (BD PharMingen) for 30 min on ice, and cells were washed three times with 1% BSA in PBS. Staining was analyzed using a FACS Calibur instrument (BD PharMingen).
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4

Neutrophil Isolation and NET Formation

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The bone marrow of the femur and tibia were collected from WT mice as previously described by Cools-Lartigue et al (15 ). Neutrophils were sorted with a BD-Aria-Plus high-speed sorter using APC conjugated anti-CD11b monoclonal antibody and APC-Cy7 conjugated anti-Lys6G monoclonal antibody (both BD Pharmingen). 2×106 neutrophils were plated onto gelatin coated 6cm dishes and onto gelatin coated glass cover slips, and allowed to attach to the plate during a 1 hour incubation period at 37°C. The FFA palmitic (C16:0), linoleic (C18:2), and oleic acid (C18:1) (all from Nu-Check Prep) were dissolved in 25% FFA-free BSA and were added in a final concentration of 50uM to stimulate the neutrophils. LPS at 100nM and H2O2 (both Sigma) were used as positive controls, whereas 25% BSA without FFA served as negative control. After 4 hours of stimulation at 37°C, the supernatants were spun and frozen for analysis of MPO-DNA levels. Cover slips were stained with antibodies against histone 2AX (Abcam ab20669, with Alexa Fluor 555 goat anti-rabbit secondary antibody from Life Technologies), actin (Alexa Fluor 488, Invitrogen) and DAPI, and NET formation was visualized with an Olympus Fluoview 1000 microscopic camera.
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