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4 protocols using v450 anti mouse cd11b

1

Osteoclastogenesis Regulation by Key Factors

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Recombinant mouse M-CSF, GM-CSF, IL-4, and RANKL were purchased from BioLegend (San Diego, CA). AF488-phalloidin was purchased from Invitrogen (Carlsbad, CA). Antibodies for immunoblot assays were obtained against NFATc1 (Pierce, Rockford, IL); Oscar (R&D Systems, Minneapolis, MN); TRAP (BioLegend); Integrin β3; c-Fos; cleaved Caspase-3, -8, and -9; and cleaved PARP (Cell Signaling Technology, Mountain View, CA). The previously described anti-Ninj1 Ab1-1518 (link) was used for immunoblotting assays. For FACS analysis, Fc block, and PE-anti-mouse CD115, APC-anti-mouse CD117, and V450-anti-mouse CD11b antibodies were purchased from BD Biosciences (Bedford, MA), and biotin-anti-RANK antibody and APC/Cy7 streptavidin were obtained from BioLegend.
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2

Isolation and Quantification of Murine Bone Marrow Monocytes

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Bone marrow cells from female mice were harvested by flushing PBS through the bone cavity of the humerus using a syringe. After centrifugation, cells were resuspended in Tris-buffered 0.83% NH4Cl solution (pH 7.29) for 5 min to lyse erythrocytes and then washed in PBS. Bone marrow cells were resuspended in PBS supplemented with 10% FBS and 5 mM EDTA. Cells were stained with phycoerythrin (PE) anti-mouse Ly-6G (Gr-1) (12-5931-83, 1:50, eBioscience), V450 anti-mouse CD11b (560455, 1:50, BD Bioscience) and allophycocyanin (APC) anti-mouse CSF-1R (135510, 1:10, BioLegend). The cells were then subjected to FACS on a FACSCalibur (BD Pharmingen, Franklin Lakes, NJ) and analyzed using FlowJo software. The monocytes were gated from the side scatter (SSC) versus forward scatter (FSC). The pre-osteoclasts were defined as CSF-1R–positive, CD11b-positive and Gr1-low/negative monocytes and are presented as a cell frequency (%) of bone marrow cells.
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3

Flow Cytometry Analysis of Second-Generation BMSCs

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The density of second-generation BMSCs was adjusted to 2 × 107 cells/mL. The control group received 50 µL of buffer, while the single-label group received 5 µL of hamster anti-CD29-AF647 (BD Biosciences, Franklin Lakes, NJ, USA), mouse anti-CD90-PECyTM7 (BD Biosciences), mouse anti-CD106-PE (BD Biosciences), mouse anti-CD11b-V450 (BD Biosciences), or mouse anti-CD45-FITC (BD Biosciences) to each branch-flow sampling tube, after which 45 µL of buffer was added to each tube. The multicolor group received 5 µL of each antibody into a one-branch-flow sampling tube, and then, 25 µL of buffer was added. Next, 50 µL of cell suspension was added to each flow tube, the tubes were incubated at room temperature for 30 min and washed twice with staining buffer, and then, 500 µL of buffer was added to each tube for detection by flow cytometry (Beckman Coulter Life Sciences, Brea, CA, USA).
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4

Multiparametric Flow Cytometry of Mouse Leukocytes

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First, 5 μL of mouse anti-CD90-PECyTM7, mouse anti-CD106-PE, mouse anti-CD11b-V450, and mouse anti-CD45-fluorescein isothiocyanate (FITC) (BD Biosciences, Franklin Lakes, NJ, USA) was added into an flow cytometry (FCM) tube, followed by the addition of 50 μL cell suspension (2 × 107/mL). The mixture was incubated at room temperature (RT) in the dark for 30 min, and the contents of each tube were then washed twice using a standing buffer. Then, 500 μL staining buffer was added to resuspend the cells, and FCM (Beckman Coulter Life Sciences, Brea, CA, USA) was used to detect expression levels of CD11b, CD45, CD90, and CD106.
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