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3 protocols using clone hir2

1

Hematopoietic Progenitor Cell Analysis

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Cells were suspended in Ca++ Mg++-free phosphate-buffered saline (PBS) containing 2% (vol/vol) FBS (Globalstem). Human hematopoietic progenitors cells were identified by labeling with CD45-PE (1:50; clone HI30) and or CD34-APC (1:50; clone 561) while mature phenotypes were analyzed using CD15-Pacific Blue (monocytes and granulocytes) (1:50; clone W6D3/HI98), CD14-FITC (monocytes and macrophages)(clone 1:50; M5E2); CD11b (1:50; ICRF44) (macrophages) and Glycophorin-PECy5 (red blood cell membrane), and erythroid precursors (1:50; Clone HIR2) (all from Biolegend). Murine hematopoietic cells were identified using the following antibodies: Mac-1/CD11b-PECy7 (1:200; clone M1/70), Gr-1-PE (1:200; clone 8C5), B220-PECy5 (1:100; clone RA3-6B2), Sca1-APC (1:100; clone E13-161-7), c-Kit-APCCy7 (1:100; clone 2B8): CD45.1-APC (1:100; clone A20) and CD45.2-FITC (1:100; clone 104) (all from Biolegends). All antibodies were incubated at the concentration suggested by the manufacturer for 30 minutes on ice. Non-specific signals and dead cells were excluded by appropriate fluorochrome-conjugated isotype and propidium iodide staining, respectively. Cell fluorescence was analyzed with the FACSAria II (Becton Dickinson).
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2

Hematopoietic Progenitor Cell Analysis

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Cells were suspended in Ca++ Mg++-free phosphate-buffered saline (PBS) containing 2% (vol/vol) FBS (Globalstem). Human hematopoietic progenitors cells were identified by labeling with CD45-PE (1:50; clone HI30) and or CD34-APC (1:50; clone 561) while mature phenotypes were analyzed using CD15-Pacific Blue (monocytes and granulocytes) (1:50; clone W6D3/HI98), CD14-FITC (monocytes and macrophages)(clone 1:50; M5E2); CD11b (1:50; ICRF44) (macrophages) and Glycophorin-PECy5 (red blood cell membrane), and erythroid precursors (1:50; Clone HIR2) (all from Biolegend). Murine hematopoietic cells were identified using the following antibodies: Mac-1/CD11b-PECy7 (1:200; clone M1/70), Gr-1-PE (1:200; clone 8C5), B220-PECy5 (1:100; clone RA3-6B2), Sca1-APC (1:100; clone E13-161-7), c-Kit-APCCy7 (1:100; clone 2B8): CD45.1-APC (1:100; clone A20) and CD45.2-FITC (1:100; clone 104) (all from Biolegends). All antibodies were incubated at the concentration suggested by the manufacturer for 30 minutes on ice. Non-specific signals and dead cells were excluded by appropriate fluorochrome-conjugated isotype and propidium iodide staining, respectively. Cell fluorescence was analyzed with the FACSAria II (Becton Dickinson).
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3

Immunophenotyping of Hematopoietic Subsets

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Frozen BM aspirates were thawed on ice and stained with biotinylated antibodies against CD45 (1:50, clone HI30; BioLegend) and CD235a (1:50, clone HIR2, BioLegend) followed by depletion using magnetic anti-biotin beads (20 μL per 107 cells; Miltenyi Biotec) in PBS supplemented with 2% FCS and iMag (BD Biosciences). After depletion, the remaining cells were stained in PBS containing 0.5% FCS at 4°C with the following antibodies: Streptavidin-AF488 (1:100, Invitrogen), CD45-BV510(1:50, clone HI30; BioLegend), CD235a-PE-Cy7(1:50, clone HI264; BioLegend), CD71-AF700 (1:20, clone MEM-75; Exbio), CD271-PE (1:50, clone ME20.4; BioLegend), CD31-APC-Cy7 (1:20, clone WM59; BioLegend), and CD44-APC (1:50, clone IM7, Sony). 7AAD (1:100; Beckman Coulter) was used for dead cell exclusion. Samples were measured using FACSymphony A5 Cell Analyzer and analyzed with a FlowJo_v10.6.1 program.
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