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2 protocols using cd86 clone gl1

1

Characterization of Tumor-Infiltrating Lymphocytes

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Single cell suspensions from spleens and lymph nodes were prepared as described.6 (link) TIL were isolated from pooled tumors as described.26 (link) All flow cytometry experiments were performed at least 3 times. Single cell suspensions were incubated with mouse Fc receptor binding inhibitor for 10 minutes before staining with antibodies to CD45 (clone 30-F11), CD3 (clone 145-2C11), CD4 (clone GK1.5), CD8 (clone 53-6.7), CD19 (clone eBio1D3), CD86 (clone GL1), CD11b (clone M1/70), Gr-1 (clone RB6-8C5), CD69 (clone H1.2F3), CD44 (clone IM9), CD62L (clone MEL-14), and CD11c (clone N418; all from eBioscience, San Diego, CA) for 30 minutes. Flow cytometry was performed using FACS Calibur (BD Biosciences) and the lymphocyte population was selected by gating CD45+ cells. The data were analyzed using Flow Jo software (Tree Star, Ashland, OR). For tetramer staining, 10 μL of PE labeled HLA-A*02:01 Human HPV16 E7 tetramer (NIH Tetramer Core Facility) was added to 200 μL mouse lymphocyte suspension (1×106 cells per tube). After incubation for 30 minutes, cells were centrifuged and resuspended in phosphate-buffered saline with 1% paraformaldehyde and then analyzed by flow cytometry. PE labeled HLA-A*02:01 human mesothelin tetramer (NIH Tetramer Core Facility) was used as control.
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2

Quantifying Dendritic Cell Maturation

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BMDC were generated from C57BL/6 mice as described above. 1x106 DC were plated in each well of 6-well tissue culture-treated plates in a volume of 800ul. DC were transduced with Ad5-LMP1 or Ad5-GFP control (MOI = 50). DC were incubated with virus at 4°C for 1 h, followed by 3 h at 37°C. Complete media was then added to 2ml with a final concentration of 1ug/ml doxycyline. As a positive control, cytokine mix Mimic (5 ng/ml TNF-α (Peprotech), 5ng/ml IL-1b (Peprotech), 750ng/ml IL-6 (Peprotech), and 1ug/ml PGE2 (Sigma)) was used to mature DC. Cells were incubated for 36 hours at 37°C, harvested, and stained with the following antibodies: anti-mouse CD80 clone 16-10A1, CD86 clone GL1, CD40 clone 1C10, CD83 clone Michel-17, MHC Class II (I-A/I-E) clone M5-114.15.2, and CCR7 clone 4B12 (all from eBioscience). Tubes were also stained with hamster anti-mouse CD11c clone N418 PE-Cyanine7 conjugate (eBioscience) to allow for gating on CD11c+ DC. After flow cytometry analysis, the mean fluorescence intensity (MFI) for each antibody was calculated for CD11c+ dendritic cells under each experimental condition. FlowJo 7.6.4 flow cytometry analysis software (FlowJo, Ashland, OR) was used for analysis. Three independent wells were analyzed for each condition.
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