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24 protocols using anti cd45 pe

1

Single-cell RNA-seq of EAE and naive mice

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Prior to euthanasia, old and young EAE and naive SJL/J mice were injected intravenously with 3 μg of anti-CD45-PE (eBioscience, Thermo Fisher Scientific) to label blood-derived and blood vessel–adjacent immune cells. Leptomeninges and cortices were dissected and single-cell suspensions were prepared as previously described. Cells from each individual mouse were stained using BioLegend TotalSeq B hashtags (Hashtags 1–4, catalog numbers 155831, 155833, 155835, 155837) and an anti-PE oligonucleotide barcode (BioLegend, catalog 408113). Cells from each compartment (i.e., leptomeninges) were mixed in a 1:1 ratio, resuspended to a concentration of 1300 cells/μL, and submitted for sequencing on the 10x Genomics platform using 5′ chemistry at the Princess Margaret Genomics Centre in Toronto, Ontario, Canada. Data are available in the NCBI Gene Expression Omnibus database (accession number: GSE201568).
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2

Isolation and Characterization of Adipose Cell Populations

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Primary SVF from EAT, SAT, BAT was resuspended in PBS with 2% FBS, and incubated with FACS antibodies for 30 min on ice. Cells were initially selected by size on the basis of forward scatter (FSC) and side scatter (SSC), following separated on the basis of cell-surface markers using a flow cytometer MoFlo XDP (Beckman Coulter, Brea, CA). To detect beige progenitors in SVF, primary SVF was separated on the basis of cell-surface markers including anti-PDGFRα (CD140a)-APC (1:50, BioLegend, San Diego, CA) and anti-CD34-FITC (1:100, eBioscience, San Diego, CA). To quantify MCs in adipose tissues, to isolate MCs from SVF, and to remove MCs from SVF, we stained and sorted MCs with anti-CD34-FITC (1:100, eBioscience), anti-CD45-PE (1:500, eBioscience) and MC markers anti-CD117-APC (1:200, eBioscience) and anti-FCεR1-PE-CY7 (1:200, eBioscience). The MC-removed SVF and MCs (1×105) were collected for TPH1 mRNA expressional analysis.
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3

Flow Cytometric Analysis of MSC Markers

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The positive rate for markers of MSCs and IL-37-MSCs was analyzed by using flow cytometric analysis. In brief, MSCs were stained with fluorescent antibodies, including anti-CD29-FITC, anti-CD45-PE, anti-CD79a-PE, and anti-CD90-FITC (eBioscience, San Diego, USA), according to the manufacturer's instruction. The percentages of various markers of MSCs were analyzed using the FlowJo software.
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4

Isolation of Microglia from Mouse Brain

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Mice were perfused with PBS containing 5 IU/ml heparin. Isolated brains were stored on ice in HBSS with 45% glucose and HEPES and subsequently minced with a scalpel and dissociated in high-glucose DMEM containing collagenase A, FCS, and DNAse I (30 minutes, 37°C). Cells were centrifuged (10 min, 400g, 4˚C) and resuspended in 5 ml of 25% Percoll overlaid with 3 ml of ice-cold PBS. Microglial cells were obtained as a pellet after centrifugation (30 min, 800g, 4°C), and resuspended in FACS buffer (0.5% BSA, 2mM EDTA in PBS). Microglia were stained (30 min, on ice, in the dark) using anti-CD45-PE (1:800; clone 30-F11, eBioscience), anti-CD11b-APC-Cy7 (1:400; clone M1/70, BD Biosciences), and Fc receptor blocking antibody CD16/CD32 (1:400; clone 2.4G2, BD Biosciences). Microglia were sorted as CD45int CD11b+ cells with an Aria II (BD Biosciences) to >90% purity.
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5

Multi-Parametric Flow Cytometry Analysis

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ENU (CAS no. 759–73-9) and EMS (CAS no. 62–50-0), heparin sodium, low melting point agarose, Triton X-100, dimethyl sulfoxide were purchased from Sigma-Aldrich (Shanghai, China). Anti-CD59-APC and anti-CD71-FITC were obtained from BD Biosciences (San Jose, CA, USA). Anti-CD61-PE and anti-CD45-PE were purchased from eBiosciences (San Diego, CA, USA). DRAQ5 was provided by Abcam (Cambridge, UK). SYTO13 and propidium iodide (PI) were supplied by Invitrogen (Thermo Fisher Scientific, Inc., Waltham, MA, USA). Phosphate-buffered saline (PBS) and Hanks balanced salt mixture (HBSS) and fetal bovine serum (FBS) were purchased from Gibco, Thermo Fisher Scientific (Waltham, MA, USA). Normal melting point agarose and ethylenediaminetetraacetic acid (EDTA) and Tris base were purchased from Amresco (Shanghai, China).
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6

Mouse Liver Cell Isolation and FACS

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Dissected mouse livers were minced with a scalpel on ice and incubated at 37 ˚C in RPMI-1640 media containing 0.05% collagenase/dispase (11097113001; Roche) and 0.01% trypsin inhibitor (T7659; Sigma). Cell suspension was filtered through a 70 μm cell strainer into PBS and residual red blood cells lysed using red cell lysis buffer (11814389001; Roche). Cell suspensions at a concentration of 1 × 107 cells/ml were the incubated for 45 min at 4 ˚C in the presence of anti-CD11b PE-Cy7 (25-0112-82, eBioscience), anti-Gr1 PE (12-5931-82; eBioscience), anti-CD45 PE (12-0451-82; eBioscience), anti-CXCR2-APC (149305; Biolegend), and Mouse BD Fc Block (553141, BD Bioscience). FACS analysis was performed using a FACSCalibur flow cytometer (BD Biosciences) and analyzed with FlowJo software version 7.2.5 (Tree Star, Ashland, OR).
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7

Quantitative Analysis of Human AAT

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Serum from nongrafted hAAT-treated mice was collected using a designated microvette (Fisher Scientific, Waltham, MA). Circulating hAAT levels were detected using species-specific ELISA for human AAT (Immunologic Consultants Laboratory, Inc.). Membrane-associated hAAT was determined by flow cytometry of thioglycolate-elicited peritoneal cell lavages using anti-hAAT-FITC (Bethyl Laboratories, Inc., Montgomery, TX) and anti-CD45-PE (eBioscience) antibodies. Peritoneal macrophages were pulsed with Glassia for indicated time points and lyzed, and hAAT content was depicted by Western blot analysis using goat anti-human AAT (Bethyl Laboratories, Inc.) and mouse anti-β-actin (MP Biomedicals, Santa Ana, CA) antibodies.
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8

Characterization of ADSC Phenotype

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The cell surface markers were analyzed with flow cytometry. The primary ADSCs at passage 3 (n = 3), and the ADSC-K4DT (n = 3) and ADSC-K4D (n = 3) cells were analyzed at low (approximately PDL 20), intermediate (approximately PDL 50), and high (approximately PDL 100) PDs. The cells were washed with FACS buffer (PBS containing 2% FBS), and the Fc receptors were blocked with canine Fc receptor binding inhibitor (Thermo Fisher Scientific). Then, the cells were incubated with the following phycoerythrin (PE)-conjugated antibodies: anti-CD29-PE (clone: TS2/16; BioLegend, San Diego, CA, USA), anti-CD34-PE (clone: 1H6; R&D Systems, Minneapolis, MN, USA), anti-CD44-PE (clone: IM7; BioLegend), anti-CD45-PE (clone: YKIX716.13; eBioscience, San Diego, CA, USA), anti-CD90-PE (clone: YKIX337.217: eBioscience), and anti-HLA-DR-PE (clone: G46-6: BD Biosciences, Franklin Lake, NJ, USA). All the cells at each passage were examined in triplicate.
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9

Neutrophil Isolation and Characterization

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Migrated mouse neutrophils were collected from the apical compartment following 2h migration. The cell suspension was blocked with fetal bovine serum and anti-CD16/CD32 (1:200, BD Biosciences; San Jose, CA) for 20 min on ice. Suspension was then stained with anti-CD45-PE (eBioscience), and anti-Ly6G-APC (eBioscience), and washed. Data was collected on a Accuri C6 flow cytometer (BD Biosciences), and analyzed with FlowJo analysis software (FlowJo; Ashland, OR).
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10

Isolation and Characterization of BMMSCs from OVX Mice

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BMMSCs were isolated from the femurs and tibias of sham-operated mice or OVX mice treated with PBS, TDNMCP-1, TDNFasL, or TDNs. Femurs and tibias were dissected out and cleaned of connective tissue. Cells were flushed out from long bones by a syringe with α-MEM supplemented with 20% FBS, 2 mM l-glutamine (Sigma-Aldrich, USA), and 1% penicillin/streptomycin (Invitrogen, USA). Single-cell suspensions were seeded in dishes and initially maintained in an atmosphere of 5% CO2 at 37 °C. The medium was changed every 3 days. After reaching 80% confluence, cells were passaged using 0.25% trypsin.
Cell surface markers of BMMSCs were detected by flow cytometry analysis. Cells were harvested and washed in PBS. Then, the single-cell suspension was incubated with mouse anti-CD105-APC (BioLegend, 120413), anti-CD11b-FITC (BioLegend, 101206), anti-CD45-PE (eBioscience, 12-0451), anti-CD29-APC (eBioscience, 17-0291-82) and anti-CD34-PE (BioLegend, 119307) antibodies. Finally, cells were washed twice in PBS, subjected to flow cytometry analysis with a flow cytometer (Cytomics FC 500; Beckman-Coulter) and analyzed with FlowJo_V10 software.
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