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3 protocols using cd45 fitc 30 f11

1

Immune Cell Characterization by Flow Cytometry

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The procedure used in this study has been published previously (14 (link),26 (link)). Briefly, the following anti-mouse monoclonal antibodies were purchased from BD Biosciences: Ly6G-peridinin chlorophyll protein (PerCP)-Cy5.5 (1A8; 560602), Ly6C-fluorescein isothiocyanate (FITC) (AL-21; 553104), CD4-allophycocyanin (APC) (RM4-5; 553051), CD25-FITC (7D4; 553071), and CD19-APC (1D3; 550992). The following antibodies were purchased from BioLegend: CD45-FITC (30F-11;103108), CD45-PerCP-Cy5.5 (30F-11;103132), CD45-brilliant violet (BV510) (30F-11;103138), CD11b-APC/Fire750 (M1/70;101262), CD244-Alexa Fluor 647 (2B4;133509), F4/80-phycoerythrin (PE) (BM8;123110), PD-L1-BV421 (10F.9G2;124315), CD8a-APC/Fire 750 (53-6.7;100766), CD8a-PE (53-6.7; 100708), CD127-BV510 (A7R34;135033), CD1d-PE (1B1;123509), and CD5-BV421 (53-7.3;100618). The isolated immune cells were stained in a 96-round-bottom-well plate for 20 min at 4°C and washed with PBS containing 1% bovine serum albumin. Sorting of Ly6G+CD244+ and Ly6G+CD244 cells was conducted on a FACSAria instrument (BD Biosciences). Flow cytometric data were obtained by a FACS Verse instrument (BD Biosciences) and analyzed by FlowJo software (TreeStar, Inc.). CD45-gated cells were analyzed in this study.
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2

Isolation of mouse hematopoietic progenitor cells

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Mouse bone marrow cells were collected from the femurs, tibiae and iliac crest and depleted of red blood cells by an ammonium chloride lysis step (STEMCELL Technologies). Cells were lineage depleted using EasySep Mouse Hematopoietic Progenitor Cell Isolation Kit (19856, STEMCELL Technologies). Lineage c-Kit+ (LK) cells were then isolated using the following antibodies (clone and company): streptavidin BV510 (BioLegend), c-kit APC-Cy7 (2B8, BioLegend), Sca1 BV421 (D7, BioLegend), CD45 FITC (30-F11, BioLegend), EPCR (CD201) PE (RMEPCR1560, STEMCELL Tech), CD150 PE/Cy7 (TC15-12F12.2, BioLegend), CD45 FITC (30-F1,1 BD Bioscience) and CD48 APC (HM48-1, eBioscience). Flow cytometry was performed on an LSRII Fortessa (BD) and all data were analyzed using FlowJo (BD). A representative gating strategy is shown in Figure S12.
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3

Isolation and Characterization of Brain Cells

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Prior to tissue harvest, animals were anesthetized with isofluorane and intracardially perfused with cold heparinized saline. After removing the cerebellum and olfactory bulbs, brain tissue was processed immediately by fine cutting followed by digestion with an enzyme cocktail of collagenase/DNase (Sigma). Myelin was removed by density centrifugation in DMEM supplemented with 20% BSA, and the remaining cell pellet was resuspended in media for staining. Brains were processed individually, without pooling. Isolated cells were first blocked using CD16/CD32 Mouse BD Fc Block (BD Biosciences, San Jose, CA), and surface proteins were detected using monoclonal antibodies CD45 FITC (30-F11, Biolegend, San Diego, CA), CD11b BV510 (M1/70, Biolegend), CCR2 BV650 (SA203G11, Biolegend), CD3e PE (145-2C11, BD Pharmingen), CD19 PE-Cy7 (6D5, Biolegend), CD11c APC (N418, Biolegend), and Ly6c APC-Fire750 (HK1.4, Biolegend), CD74 BV421 (In1, BD). Dead cells were excluded using Live/Dead Fixable Blue (Thermo Fisher Scientific, Waltham, MA), according to manufacturer’s instructions. After staining, cells were washed and acquired using a FACSymphony (BD Scientific) equipped with FACS Diva v.8, and data were analyzed using FlowJo software v.10.0.7.
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