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4 protocols using cd39 pecy7

1

Multiparametric Flow Cytometry of Tumor Cells

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Single-cell suspensions of tumors were prepared, and flow cytometry was carried out as mentioned earlier [45 (link), 46 (link)]. Cells were stained with the following antibodies obtained from BioLegend: CD16/32 (clone 93, catalog No. 103132), Zombie UV™ Fixable Viability Kit (catalog No. 100752), CD45-PerCP/Cy5.5 (clone 30-F11, catalog No. 103132), CD45-APC/Cy7 (clone 30-F11, catalog No. 103116), CD11b-FITC (clone M1/70, catalog No. 101206), SIRPα-PE (clone BM8, catalog No. 123122), Gr-1-PerCP/Cy5.5 (clone RB6-8C5, catalog No. 108428), F4/80-AF647 (clone N418, catalog No. 117318),CD11c-PE/Cy7 (clone N418, catalog No. 117318), I-A/I-E-AF700 (clone M5/114.15.2, catalog No. 107622), CD86-BV421 (clone GL-1, catalog No. 105032), CD206-BV605 (clone C068C2, catalog No. 141721), CD8a-AF700 (clone 53-6.7, catalog No. 100730), CD8-BV510 (clone 53-6.7, catalog No. 100752), TNF-α-BV421 (clone MP6-XT22, catalog No. 506328), IFN-γ-PE (clone XMG1.2, catalog No. 505808), CD39-PE/Cy7 (clone Duha59, catalog No. 143806), Tim-3-APC/Fire™ 750 (clone RMT3-23, catalog No. 119738), PD-1-BV605 (clone 29 F.1A12, catalog No. 135220). The next antibodies were obtained through eBioscience: Mouse Regulatory T Cell Staining Kit #2 (clone FJK-16s, catalog No. 88-8118-40). FlowJo program (Tree Star Inc.) was utilized to examine the findings that were acquired through a BD LSRFortessa Flow Cytometer.
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2

Multiparametric Flow Cytometry Analysis

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Flow-cytometry antibodies included CD3e-PE, PD1-BV605, CD45-BV786 (BD-Biosciences), CD90.1-FITC, CD62L-PECy7, CD45.1-APC, CD45.1-PE (eBioscience), CD45.2-Alexa700, CD-8α-Percp-Cy5.5, CD4-FITC, CD103-APC, CD24-APCcy7 (Invitrogen), CD44-APCy7, CD4-BV421, F4/80-PercpCy5.5, CD39-PECy7, PDL1-PE, CD90.2-Alexa 700, MHCII-BV421, CD11b-BV650, Ly6C-BV711 (Biolegend), CD8α-PE-Texas-red (Life Technologies, Carlsbad, CA, USA). Blocking PD-1 antibody (clone RMP1-14, BioXCell, Branford, CT, USA) was administered systemically by intraperitoneal injections of 250 μg [41 (link)]. Blocking anti-CD40L (clone MR1, BioXCell) was administered systemically by intraperitoneal injections of 250 μg [19 (link)].
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3

Comprehensive Flow Cytometry Analysis of Immune Cells

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For flow cytometry analysis of lymph nodes (LN), spleen (SP), tumors, and AT, the following antibodies and buffers were used: CD3-PE, CD4-BV510, CD8-PeCy7, F4/80-APC, MHCII-AF488, CD206-BV605 CCR8-BV421, CD39-PeCy7, NRP1-PE and PD1-BV711 from Biolegend; CD25-PeCy5.5 from Thermo Scientific and CD11b-VF450 from Tonbo. For intracellular analysis, we used anti-Foxp3-APC (Tonbo) and Helios-FITC (Biolegend), using the Foxp3/Transcription Factor Staining Buffer Kit (Tonbo) for fixation and permeabilization of the cells.
All cells were initially stained with viability dye Zombie-NIR (Biolegend) and samples were acquired in an Attune NxT® Acoustic Focusing Cytometer (Thermo Scientific) and flow cytometry data was analyzed using FlowJo 10.8.1 (Tree Star).
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4

Comprehensive Murine and Human Immune Profiling

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Flow cytometry antibodies for murine samples included CD3e-PE, PD1-BV605, CD45-BV786 (BDbiosciences), CD90.1-FITC, CD62L-PECy7, CD45.1-PE (ebioscience), CD45.2-Alexa700, CD-8α-Percp Cy5.5, CD4-FITC, CD103-APC, CD24-APCcy7 (Invitrogen), CD44-APCy7, CD4-BV421, F4/80-PercpCy5.5, CD39-PECy7, PDL1-PE, CD90.2-Alexa 700, MHCII-BV421, CD11b-BV650, Ly6C-BV711 (Biolegend), CD8α-PE-Texas red (life technologies), CD278 (ICOS)-PE (Biolegend). Flow cytometry antibodies for human samples included CD45-BV510, CD3-Alexa700, CD4-BV785, CD8-BV711, CTLA-4-PE/Dazzle 594, 4-1BB-PE (Biolegend), CD39-BV650, PD-1-PE-Cy7 and Ki-67 Alexa 488 (BD Biosciences), CD103-APC and FOXP3-Alexa 700 (eBioscience).
Mouse antibodies for the explant assays included anti-PD1 (RMP1-14) and anti-CTLA-4 (9D9) by BioXCell and OX40 (OX86) kindly provided by Dr. Andrew Weinberg (EACRI). Human antibodies for the explant assays included anti-PD1 and anti-CTLA4 purchased from Invitrogen and anti-OX40 kindly provided by Dr. Andrew Weinberg (EACRI).
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