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5 protocols using cd45 pe 30 f11

1

Isolation and Characterization of Murine Immune Cells

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Following sacrifice, the TDLN was mechanically dissociated between two frosted slides and filtered using 40-μm filters. Cells were resuspended in PAB (1L PBS, 1g sodium azide, 10 g BSA) at approximately 1 × 106 cells per sample. The following antibodies were used for identification of cell subsets: CD45-PE (30-F11, eBioscience), CD11b-BV450 (M1/70, eBioscience), F4/80-FITC (BM8, eBioscience), IA/IE-PerCP-Cy5.5 (M5/114.15.2, BD), Gr1-APC-Cy7 (RB6-8C5, BioLegend). Surface markers were stained for 30 minutes at 4°C in the dark. Cells were fixed for 20 minutes using Cytofix/Cytoperm (BD), washed and resuspended in PAB. All samples were run on an Amnis ImageStream GenX (Luminex Corporation). 2–5 × 104 events/sample were collected and analyzed using FlowJo software (FlowJo).
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2

Multiparametric flow cytometry of immune cells

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Single‐cell suspensions for flow cytometry were prepared as previously described (Shen et al., 2018) and detailed in Data S1. Leucocytes were stained with CD45‐PE (30‐F11; eBioscience), CD11b‐FITC (M1/70; BioLegend), CD3‐APC (145‐2C11; BD Biosciences), Ly6C‐APC Cy7 (AL‐21; BD Biosciences) and Ly6G‐BV510 (1A8; BioLegend), together with Fc receptor blocking using anti‐CD16/32 before resuspension in FACS buffer containing 2% FBS and viability dye (7‐aminoactinomycin D; 7‐AAD). The LSR‐Fortessa (BD Biosciences) and FlowJo (Tree Star) were used for acquisition/analysis.
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3

Isolation and Culture of Intestinal Stem Cells

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For intestinal stem cell (ISC) isolation, crypt suspensions were dissociated into individual cells with TrypLE Express (Invitrogen). Cells were stained with an antibody cocktail consisting of CD45-PE (30-F11, eBioscience,), CD31-PE (Mec13.3, Biolegend), CD24-Pacific Blue (M1/69, Biolegend), EpCAM-APC (G8.8, eBioscience) and Kit (Biolegend). ISCs were isolated as Lgr5-eGFPhiEpCAM+CD31CD45 Live/Dead-yellow. Paneth cells from the small intestine were isolated as CD24hi SSChi c-Kithi Lgr5-eGFPEpCAM+CD31CD45 Live/Dead-yellow. Cells were sorted with a BD FACS Aria Fusion cell sorter into complete crypt medium for culture. Dead cells were excluded from the analysis with the viability dye Live/Dead yellow (Life Technologies). ISCs and Paneth cells were mixed after sorting in a 1:1 ratio, centrifuged and then seeded onto Matrigel (Corning 356231 growth factor reduced) in a flat-bottom 24-well plate. The crypt medium was changed every third day. Organoids were quantified on days 3, 7 and 10 of culture unless otherwise specified.
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4

Comprehensive Protein Expression Analysis

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The antibodies of Smad2/3 (3102, CST), AKT (#9272, CST), p-AKT (#9271, CST), p-Smad2/3 (#ab272332, Abcam), E-cadherin (#20874-1-AP, Proteintech), N-cadherin (#22018-1-AP, Proteintech), Vimentin (#BF8006, Affinity Biosciences), Collagen Type I (#14695-1-AP, Proteintech), NF-κB1 (#14220-1-AP, Proteintech), LEF-1 (#28540-1-AP, Proteintech), PD-L1 (#66248-1-Ig, Proteintech), GAPDH (#60004-1-Ig, Proteintech), SNAIL (#AF6032, Affinity Biosciences), ROCK1 (#PTM-6454, PTM Bio), ROCK2 (#PTM-6169, PTM Bio), Ki67 (#GB111499, Servicebio), and fibrillar actin (F-actin) (#C1033, Beyotime) were used for western blot, immunofluorescence staining, and immunohistochemical staining. The following antihuman antibodies were used for flow cytometry: CD45 (PE, 30-F11; eBioscience), CD8α (APC, 53-6.7; eBioscience), 7-AAD (Invitrogen), CD3 (eFluor™ 506, UCHT1; eBioscience), PD-1 (Pacific Blue, EH12.2H7; Biolegend), and TIM-3 (FITC, F38-2E2; Biolegend).
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5

Immunophenotypic Analysis of HSC Populations

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For analysis of AGM-HSC populations, cells were stained with either (i) cKit APC (2B8, DB Pharmingen) and CD34-PE (RAM34, BD Pharmingen), (ii) VE-Cadherin (clone 11D4.1, BD Pharmingen) followed by anti-rat Tricolour (PeCy5) antibody and CD45-PE (30-F11, eBioscience) (Invitrogen) or (iii) CD45-PE, VE-Cad:PeCy5, cKit-APC, CD34 staining the rat antimouse CD34 biotin (BD Pharmingen) followed by incubation with the secondary antibody anti-streptavidin PeCy7 (BD Pharmingen). Fetal liver cells were stained for lineage markers using purified rat antimouse antibodies the Lin-(Ter119, Gr1, CD4, CD8, B220) followed by anti-rat Tricolour (Pe-Cy5) secondary antibody. For cKit and Sca-1 staining, cKit-APC and anti-Sca-1-PE were used. . Lastly CD34 biotinylated antibody (BD Pharmingen) combined with the streptavidin PeCy7 was used for CD34 staining. For immunophenotyping of bone marrow, cells were stained for lineage analysis with purified anti mouse Ter119 (erythroid), Gr1 and Mac-1 (granulo-monocytic), B220 (B cells), CD3, CD8 and CD4 (T cell) followed by anti-rat Tricolour (PeCy5) antibody and ckit APC, Sca-1 PE and CD34 FITC. + Kit + Sca. For LT/ST HSC compartment analysis, cells were stained as before for KLS, and CD34. Cells were analysed for HSC and progenitor compartments by flow cytometry using the Cyan ADP flow cytometry platform (Beckman Coulter, High Wycombe, UK).
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