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59 protocols using cd45 pe

1

Flow Cytometry Analysis of Mesenchymal Stem Cells

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Cells were harvested and the cell pellet was resuspended in PBS to 106 cells/100 μl. The cell suspension was incubated with the following antibodies: HLA-DR-APC, CD34-FITC, CD45-PE, CD73-PE, CD90-FITC, and CD105-FITC (eBioscience). An isotype control antibody (eBioscience) was used for each. Approximately 5 μl of each antibody (1:10 dilution, according to the antibody datasheets) per tube was added, and this was incubated for 15 min in the dark at 2–8 °C. Cells were completely washed with PBS and resuspended in 1% (w/v) paraformaldehyde (Sangon Biotech, China). Samples were subjected to flow cytometry (BD Biosciences, USA) and the data were analyzed by FlowJo software (FlowJo LLC, Ashland, OR, USA).
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2

Isolation and Flow Cytometry of Intestinal Stem Cells

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Following crypt isolation, the crypt suspensions were pelleted (100 g, 5 min, 4°C) and supernatant was discarded. Crypts were resuspended in TrypLE (GIBCO, no phenol red, 12604039) and dissociated into individual cells by warming crypts in water bath at 32°C for 60 s. Dissociated single cells were treated with the following antibody cocktail for flow cytometry analysis: CD45-PE (eBioscience, 12-0451-83), CD31-PE (Biolegend, 102514), Ter-119PE (Biolegend, 116208), CD24-Pacific Blue (Biolegend, 101820), CD117-APC/Cy7 (Biolegend, 105826), and EpCAM-APC (eBioscience, 17-5791-82). 7AAD (Invitrogen, A1310) was used a viability dye to exclude dead cells from the analysis. ISCs were isolated as Lrg5-eGFPhiEpCAM+CD24low/−CD31Ter119CD457AAD. eGFPlow progenitors were isolated as Lrg5-eGFPlowEpCAM+CD24low/−CD31Ter119CD457AAD. Cells were sorted using a BD FACS II SORP cell sorter.
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3

Chondrocyte Immunophenotyping by Flow Cytometry

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Chondrocytes (1×106) from growth plate (passage 1) were washed in PBS and incubated with corresponding primary antibodies for one hour at 4°C. Primary antibodies used here were conjugated antibodies specific for CD44-FITC (dilution 1:100, #550974; BD Biosciences, San Diego, CA, USA), CD29-PE (dilution 1:80, #48-0291; eBiosciences; Thermo Fisher Scientific, Inc.), CD34-PE (dilution 1:100; #sc-74499 PE; Santa Cruz Biotechnology, Inc., Dallas, TX, USA), CD45-PE (dilution 1:80, #12-0461; eBiosciences; Thermo Fisher Scientific, Inc.) and unconjugated antibodies for CD105 (dilution 1:100, #ab11414) and CD146 (dilution 1:80, #ab75769) (both from Abcam, Cambridge, MA, USA). After washing with PBS, cells stained with CD105 and CD146 were incubated with anti-mouse FITC-conjugated secondary antibody (dilution 1:500, #A0568; Beyotime Institute of Biotechnology, Guangzhou, China) or Alexa Fluor 594 donkey anti-rabbit IgG (dilution 1:500, #A-21207; Invitrogen; Life Technologies) for 30 min at 4°C. The cells were washed twice and then re-suspended in 200 µl PBS for the flow cytometry analysis (FACSort; BD Biosciences).
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4

Tumor Macrophage Profiling via Flow Cytometry

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To prepare single-cell suspensions for flow cytometry, fresh tumor tissue was dissected into approximately 1 to 3 mm3 fragments and digested with 80 U/mL collagenase (Invitrogen) in DMEM containing 10% FBS for one hour at 37°C while shaking. After red blood cell (RBC) lysis, single-cell suspensions were filtered and incubated for 20 minutes on ice with the following antibodies (1:100): CD45-PE (eBioscience, San Diego, CA), F4/80-PE-Cy7 (eBioscience, San Diego, CA), CD11b-FITC (BD Biosciences San Jose, CA), CD206-APC (Biolegend, San Diego, CA),CD68-PerCP-Cy5.5 for macrophages (Biolegend, San Diego, CA), Cells were washed with phosphate-buffered saline (PBS) before analysis on the BD LSR-II flow cytometer (Beckman Coulter).
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5

Inflammasome Activation Assay Protocol

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HDM was from Greer Laboratories. Anti-mouse IL-1β (p17) (AF-401-NA) was from R&D. Anti-mouse caspase-1 (p20) (AG-20B-0042) and anti-NLRP3 (AG-20B-0014) antibodies were from Adipogen. Anti-ASC (67824) antibody was from Cell Signaling Technology. Anti-β-actin (66009-1-Ig) was from Proteintech.
Anti-mouse antibodies used for flow cytometry were: CD3-FITC (BD, 553062, 145-2C11), CD19-FITC (eBioscience, 11-0193-82, 1D3), Ly-6G-PE (Biolegend, 127608, 1A8), CD45-PE (eBioscience, 12-0451-81, 30-F11), CD11c-PerCP-Cy5.5 (Biolegend, 117328, N418), CD11b-PerCP-Cy5.5 (BD, 550993, M1/70), CD11b-PE-Cy7 (eBioscience, 25-0112-82, M1/70), CD3e-PE-Cy7 (BD, 552774, 145-2C11), CD19-PE-Cy7 (Biolegend, 115520, 6D5), SiglecF-Alexa Fluor 647 (BD, 562680, E50-2440), MHCII-APC-eFluor 780 (eBioscience, 47-5321-82, M5/114.15.2), Ly-6G-BV421 (Biolegend, 127628, 1A8), CD45-BV510 (Biolegend, 103137, 30-F11), CD11c-BV510 (Biolegend, 117338, N418). Ultrapure LPS was obtained from Invitrogen. Nigericin was obtained from Sigma-Aldrich. RRx-001 (S8405) was from Selleck.
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6

Isolation of Murine Lung Cell Types

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Murine lung tissue was digested into a single-cell suspension as previously described using dispase (Corning catalog #354235), collagenase (Roche catalog #10103578001), and DNase (Roche catalog #10104159001). When isolating AT2 cells from SftpcCreERT2:R26RTdTomato mice, the animals received 200μg/gm tamoxifen (Sigma-Aldrich catalog #T55648) in corn oil (Sigma-Aldrich catalog #C8267) via gavage 3 days prior to being euthanized. Tomato+ cells were isolated using flow cytometry (MoFlow Astrios with Summit v 6.3.0.16900 software). To isolate AT2 cells from mice we stained single-cell suspensions of murine lung tissue and gated based on the following criteria: positive for EpCAM-APC (BioLegend catalog #118213) and negative for CD31-PE (eBioscience catalog #12-0311-81), CD45-PE (eBioscience catalog #12-0451-81), podoplanin-PE (eBioscience catalog #12-5381-80), Sca1-PE (eBioscience catalog #12-5981-81), CD24-PE (BioLegend catalog #119307), and DAPI (BioLegend catalog #422801) as previously described81 (link). To isolate mesenchymal cells we sorted for cells that were positive for CD140a (BioLegend catalog #135907) and negative for and DAPI (BioLegend catalog #422801). Antibody concentrations are in Supplementary Table 2.
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7

Expanded PPCs Immunophenotyping by Flow

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For flow cytometry analysis of PPCs, the cells were harvested, washed with PBS, resuspended in PBS, and stained with fluorescent antibodies for 60 min at 4 °C in the dark. We used CD73-PE (eBioscience, San Diego, CA, USA), CD90-PE (eBioscience), CD105-PE (eBioscience), CD34-FITC (eBioscience), CD45-PE (eBioscience), and HLA-DR-FITC (eBioscience) to characterize the expanding PPCs. Isotype-matched antibodies served as controls.
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8

Monocyte phenotyping with cancer cell interaction

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Human monocytes were cultured alone or with mf or three different CMFDA-labeled cancer cell lines (green; FITC channel) as mentioned above. After 48 hrs, cells were harvested, washed with PBS and incubated with 10 μl human IgG (10 mg/ml; Sigma-Aldrich, St. Louis, MO) for 10 min at 4°C to inhibit nonspecific binding through FcγRs and then incubated with marker-specific mAb conjugated with PDL2- APC (eBioscience, Cat No. 17-5888-42), VCAM1(Vascular cell adhesion molecule-1)-APC (Biolegend, Cat No. 305810), CD14-APC Cy7 (eBioscience, Cat No. 47-0149-42), CD45-Pacific blue (Biolegend, Cat No. 304022), CD206 (Mannose receptor)-Percp efluor 710 (eBioscience, Cat No. 46-2069-42), PDL1-PE-Cy7 or PDL1-APC (eBioscience, Cat No. 25-5983-42 and Cat No. 17-5983-41 respectively), or CD163-PE (eBioscience, Cat No. 12-1639-42), CD45-PE (eBioscience, Cat No. 12-9459-42) at saturating concentrations for 30 min at 4°C and washed twice with FACS medium. Monocyte cell populations (CD45+/CMFDA-) were then identified and gated to measure the expression of cell surface markers.
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9

Leukemia Development in Xenograft Mice

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Two cell doses (1 × 104 or 1 × 106) of REH-scramble or REH-E5 cells were transplanted into NOD/scid IL-2Rg(null) mice (NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ; The Jackson Laboratory, Bar Harbor, ME, USA) by tail vein injection. Each recipient group had three mice. Leukemic development and survival of mice were monitored daily. The recipients were sacrificed and dissected upon onset of physical symptoms of leukemia, including hind limb paralysis, weight loss, or decreased activity. Bone marrow and spleen cells were harvested, and single-cell suspensions were prepared. REH cells were detected with flow cytometry, using CD45-PE and CD19-APC antibodies (eBiosciences, San Diego, CA; catalog no. 12-9459-42, 17-0199-42).
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10

Differential Immunophenotyping of NK Cell Subsets

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The following antibodies were used. From eBioscience (San Diego, CA): CD3-APC eFluor 780 (clone SK7); CD16-FITC (eBioCB16); CD19-APC eFluor 780 (HIB19); CD45-PE (HI30); CD94-FITC (DX22); Eomes-PE eFluor 610 (WD1928); Granzyme K-PerCP eFluor 710 (G3H69); HLA-A3-FITC (GAP.A3); IFN gamma-Alexa Fluor 488 (4S.B3); S1PR1-eFluor 660 (SW4GYPP); T-bet-PECy7 (4B10); TNF alpha-APC (Mab11). From Biolegend (London, UK): CCR5-APC (J418F1); CD49a-FITC (TS2/7); CD69-APC (FN50); CD103-FITC (Ber-ACT8); CX3CR1-FITC (2A9-1); CXCR6-PerCP Cy5.5 (K041E5); CXCR6-APC (K041E5); GM-CSF-PE (BDV-21C11); Granzyme B-FITC (GB11); HLA-A2-FITC (BB7.2); KIR2DL1/S1/S3/S5-APC (HP-MA4); KIR2DL2/L3-APC (DX27); KIR3DL1-APC (DX9); Perforin-APC (dG9). From BD (Oxford, UK): CD56-BV510 (NCAM16.2), LIF-PE (1F10). Dead cells were excluded using Fixable Viability Dye eFluor 450 (eBioscience). Intracellular staining was carried out using Human FoxP3 Buffer (BD) according to the manufacturer’s instructions. Data were acquired on a Fortessa II (BD) and analysed using FlowJo (Treestar, Ashland, OR). Cells were sorted on an Aria (BD). Eomeslo NK cells were isolated by sorting on live cells (propidium iodide negative, Tonbo Biosciences, San Diego, CA), singlets, scatter, CD3- CD56+ CXCR6- CD16+. Eomeshi NK cells were isolated by sorting on live cells, singlets, scatter, CD3- CD56+ CXCR6+.
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