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Facs calibur hg flow cytometer

Manufactured by BD
Sourced in United Kingdom

The FACS Calibur HG flow cytometer is a laboratory instrument designed to analyze and sort cells and particles in a fluid stream. It utilizes laser technology to measure and detect the physical and chemical characteristics of cells or particles as they flow through a detection chamber.

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6 protocols using facs calibur hg flow cytometer

1

Phenotypic Analysis of Tumor Immune Cells

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Tumors were harvested and processed using Collagenase I and DNase I (Wako, Osaka, Japan). The resulting cell suspensions were clarified using 40-μm filters to prepare single cell suspensions, and single cells were suspended in PBS supplemented with 2% FBS. Splenocytes were hemolyzed and incubated with anti-CD16/32 2.4G2 (BD Biosciences, San Jose, CA, USA) to reduce FcγR binding. Cell-surface antigens were stained with antibodies specific for CD8 (BioLegend, San Diego, CA, USA, clone 53-6.7), CD4 (BioLegend, clone GK1.5), CD45 (BioLegend, clone 30-F11), IA/IE (BD Bioscience, clone M5/114), CD11c (BD Bioscience, clone HL3), CD11b (BioLegend, clone M1/70), and F4/80 (BioLegend, clone BM8).
For intracellular staining, cells were fixed and permeabilized using Foxp3/Transcription Factor Staining Buffer Set (eBioscience, San Diego, CA, USA) after cell surface staining and were stained with labeled antibodies against the intracellular molecules foxp3 (eBioscience, clone FJK-16s), glucose transporter 1 (GLUT1, Abcam, Cambridge, UK, clone EPR3915), and hexokinase II (HX2, Abcam, clone EPR20839).
Samples were analyzed on a FACS Calibur HG flow cytometer (BD Biosciences). Data analysis was performed with CellQuest™ software (Becton Dickinson, Lincoln Park, NJ, USA).
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2

Apoptosis Assay in PC9 Cells

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Cell apoptosis were employed by flow cytometry. PC9 cells were seeded in 6-well plates at a density of 3×105 cells/well, and treated with either 0.1 μM icotinib, 200 μg/mL thalidomide, or a combination. After 24-hour culture, cells were collected and stained with Annexin V-FITC and propidium iodide (Apoptosis Kit, BestBio Biotechnology). Data were acquired on a FACSCalibur HG flow cytometer (BD, Franklin Lakes, NJ, USA) and analyzed using Cell-Quest software (BD Bioscience). For each experiment, 10 000 events per sample were recorded. FlowJo 7.6 software was used for flow cytometry analysis. All experiments were repeated 3 times.
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3

Cell Cycle Analysis by Flow Cytometry

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OCCC cell lines were plated at a density 1×105cells/well in 6-well plates and cultured for 24 h. The cells were then transfected with siSMYD2 or siNC. Following 48–72 h incubation, the cells were digested with trypsin, washed with PBS and then added to ice-cold 70% ethanol for 2 h at 4°C. The samples were then incubated overnight at 4°C, washed with PBS, then treated with 0.25 mg/ml RNase A (Sigma-Aldrich; Merck KGaA) at 37°C for 30 min. Propidium iodide (final concentration, 50 µg/ml) was then added to each sample and incubated for 30 min in the dark at 4°C. Cell cycle progression was then evaluated using a FACSCalibur HG flow cytometer (BD Biosciences). The data were analyzed using the CellQuest Pro software (version 3.1; BD Biosciences).
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4

Immune Profiling of Tumor Microenvironment

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Thirteen mice were used for flow-cytometry (cGAMP alone group n = 6, cGAMP/anti-PD-1 combination group n = 7). Tumors were harvested and processed using Collagenase I and DNase I (Wako, Osaka, Japan). The resulting cell suspensions were clarified using 40-μm filters to prepare single cell suspensions, and single cells were suspended in PBS supplemented with 2% FBS. Splenocytes were hemolyzed and incubated with anti-CD16/32 2.4G2 antibody (BD Biosciences, San Jose, CA) to reduce FcγR binding. Cell-surface antigens were stained with antibodies specific for CD8 (BioLegend, San Diego, CA, clone 53-6.7), CD4 (BioLegend, clone GK1.5), and CD45 (BioLegend, clone 30-F11).
For intracellular staining, cells were fixed and permeabilized using a Foxp3/Transcription Factor Staining Buffer Set (eBioscience, San Diego, CA) after cell surface staining and then stained with labeled antibodies against the intracellular molecules Foxp3 (eBioscience, clone FJK-16s), glucose transporter 1 (GLUT1, Abcam, Cambridge, UK, clone EPR3915), and hexokinase II (HX2, Abcam, clone EPR20839).
Samples were analyzed on a FACS Calibur HG flow cytometer (BD Biosciences). Data analysis was performed with CellQuest™ software (Becton Dickinson, Lincoln Park, NJ).
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5

Caspase Detection in Apoptosis

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Detection of active caspases was conducted using an Apoptosis Detection Kit Caspase Assay (Immunochemistry Technologies, Bloomington, MN). Briefly, trypsinised cells were labelled with SR-VAD-FMK for 1 h at 37°C, washed in 1× apoptosis wash buffer and placed on ice in the dark. SR-VAD-FMK is labeled with sulforhodamine B, a red fluorescent dye with optimal excitation at 565 nm and emission at 590–600 nm. Caspase activity was detected using a FACSCalibur HG flow cytometer (Becton Dickinson, Franklin Lakes, NJ) and an emission filter associated with the FL-2 channel.
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6

Flow Cytometry Analysis of Modified Jurkat Cells

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APC-conjugated anti-human CD132 (clone: TUGh4) and APC-Rat IgG2b, k Isotype ctrl (clone: RTK4530) (BioLegend, San Diego, CA) antibodies were used for flow cytometry analyses of genome-modified Jurkat cells. Flow cytometry was performed on a FACSCalibur HG flow cytometer with CELL Quest Pro software (Becton Dickinson, Franklin Lakes, NJ). Dead cells were excluded by gating of forward and side scatter.
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