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3 protocols using cd3 alexa fluor 647

1

Western Blotting and Immunostaining Assays

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For western blotting, antibodies were used as follows: TRF2 (1:500, Cell Signaling Technology, 13136), p16 (1:1000, Proteintech, 10883-1-AP), p21 Waf1/Cip1 (1:1000, Cell Signaling Technology, 2947), γ-H2AX (ser139) (1:500, Cell Signaling Technology, 9718), 53BP1 (1:1000, Novus, NB100-304), p53 (1:1000, Cell Signaling Technologies, 2524), P-p53 (1:1000, Cell Signaling Technologies, 9284), Myc (1:1000, Cell signaling, Technology 2276), P-TBK1 (Ser 172) (1:1000, Cell Signaling Technology, 5483), TBK1 (1:1000, Cell Signaling Technology, 3013), NF-κB P-p65 (Ser 536) (1:1000, Cell Signaling Technology, 3033), NF-κB p65 (1:1000, Cell Signaling Technology, 8242), NF-κB1 p105/p50 (1:1000, Cell Signaling Technology, 3035), cGAS (1:1000, Cell Signaling Technology, 15102), Actin (1:10 000, Sigma-Aldrich, A5-441), anti-rabbit HRP (1:3000, Cell Signaling Technology, 7074), anti-mouse HRP (1:3000, Cell Signaling Technology, 7076). For immunostaining: γ-H2AX (JBW301) (1:500, Merck, 05-636), H3K9me3 (1:400, Abcam, ab8898), 53BP1 (1:500, Novus, NB100-304), αSMA (Biotin) (1:500, Abcam, ab125057), CD45 (Alexa Fluor 647) (1:50, Biolegend, 103123), CD3 (Alexa Fluor 647) (1:50, Biolegend, 100209), CD68 (Alexa Fluor 647) (1:50, Biolegend, 137001), ICAM-1 (1:50, Biolegend, 116102), VCAM-1 (1:50, Biolegend, 105702).
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Isolation and Flow Cytometry of PBMCs

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The isolation of peripheral blood mononuclear cells (PBMCs) and flow-based transmigration assays were performed in a 3D BioFlux flow chamber device (Fluxion Bioscience, San Diego, CA) as previously described.30 (link) The migrated cells were enumerated by a hemocytometer and then normalized to migrated cell numbers determined by flow cytometry. After collection, cells were fixed for 10 minutes in 1% paraformaldehyde at room temperature and washed in phosphate buffered saline + 0.1 mM ethylenediaminetetraacetic acid, followed by blocking in mouse IgG. Cells were labeled with anti-human CD45 eFluor450, CD8a APC-eFluor780 (eBioscience, San Diego, CA), CD3Alexa Fluor 647 (BioLegend, San Diego, CA), CD19 BV711, and CD4 PE-CF594 (BD Biosciences). Data were acquired using BD FACSCanto II (BD Biosciences) and analyzed by FlowJo software (v.10.4.1; Treestar, Ashland, OR).
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3

Multiparameter Flow Cytometry Immunophenotyping

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Input and migrated cells were analyzed by flow cytometry. After collection, cells were fixed for 10 minutes in 1% paraformaldehyde at room temperature, washed in PBS/0.1 mM EDTA, followed by blocking in mouse IgG. Cells were labeled with anti-human CD45 efluor450, CD8a APC-efluor780 (eBiosciences, San Diego, CA), CD3 Alexa Fluor 647, CD14 BV605 (BioLegend, San Diego, CA), CD19 BV711, CD4 PE-CF594 (BD Biosciences), and CD16 PE (R&D Systems). Data were acquired on a BD LSRFortessa SORP flow cytometer running Diva6, and analyzed in FlowJo 9.7.5 (Tree Star, Ashland, OR).
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