N 100), FITC-CD40 (1 in 50), FITCCD80 (1 in 50), PE-CD86 (1 in 400), PE-IA-IE (MHC class II) (Pharmingen) (1 in 800), as well as PB-CD8 (1 in 200), A700CD45.2 (1 in 300), APC-CD44 (1 in 400), PE-Cy7-CD25 (1 in 1500), APC-CD62L (1 in 400) (BD Biosciences and eBiosciences). For intracellular labeling of cytokines, IL-12 (p40/p70)-PE and TNF-a PE monoclonal antibodies (1 in 100)(Pharmingen) were used. The Aqua Dead Cell Stain (Invitrogen) was used to eliminate dead cells. Ovalbumine (OVA) was purchased from EndoGrade with purity.98 and endotoxin concentration ,1EU/mg. SIINFEKL peptide was purchased from Schafer-N. Human mDC were sorted from PBMC of blood from healthy donors using lineage cocktail-FITC (BD Biosciences), CD123-PE (BD Biosciences), CD11c-APC (Biolegend), HLA-DR-Quantum Red (Sigma). Human mDC were stained with CD86-PE, CD83-FITC, CD40-APC and HLA-DR-PB (eBiosciences or Biolegends).Flow CytometryTo EZH2 inhibitor analyse mouse BMDC maturation, 26105 cells were stimulated and stained with antibodies for classical activation markers. Appropriate isotype antibodies were used as controls. After staining, cells were washed with PBS 2 FCS, then PBS 1X and fixed in 1.5 paraformaldehyde before analysis on a FACScalibur cytometer (Becton Dickinson). Cells were always gated on CD11c for analysis and 100,000 CD11c+ events were collected from each sample. For the intracellular staining of IL-12 and TNF-a in mouse BMDCs, BD Cytofix/Cytoperm and BD Perm/ Wash buffers were used. At least 100.000 events were collected on FACSCanto II (BDBiosciences). For mouse CD4 and CD8 T cell assays, viable cells were analyzed for the decrease of CFSE (proliferation) and the expression of CD25, CD44 and CD62L (diluted in PBS 1X EDTA 2 mM). Human mDC or GSK2606414 manufacturer IL4-DCTetraacyl LPS Potentiate Intracellular Signallingactivation was analyzed by checking the surface expression of maturation markers CD40, CD83, CD86, HLA-DR after 16 h or 72 h of cell treatment with LPS variants, respectively. Flow cytometry analysis was performed using the FlowJo software. Histograms were drawn from and median fluorescence intensity values were determined on gated populations. At least 100,000 events were collected on FACSCanto II (BDBiosciences) or FACSAria (BDBiosciences).was analyzed by flow cytometry to study the cellular activation level.Co-culture of OT-II T cells with BMDCCD4+ T cells were isolated from the spleen of OT-II Rag-22/2 mice using a CD4+ T cell isolation kit (Dynal; Invitrogen). Purity was determined by staining with CD4, CD5, and TCR Va2. A total of 3 6103 BMDC stimulated for 8 h with different LPS were co-cultured 1662274 with 2 6 104 OT-II Rag-22/2 T cells in the presence of ovalbumin, ovalbumin (257?64) peptide (0.06 mg/mL) and of TGF-b (1 ng/mL) as indicated. After 5 days of culture, the expression of Foxp3 and CD25 was evaluated.Cytokine MeasurementMurine IL-12 and TNF-a were quantified in culture supernatants of stimulated DC by sandwich enzyme-linked immunosorbent assays (ELISA) according to the manufacturer’s protocol (Abcys). Human cytokine (IL-6, TNF-a, and IL-12p40) were determined using the BeadLyte cytokine assay kit (Upstate, MA).Human CD4+ and CD8+ T cell Responses56103 blood mDC were co-cultured with CFSE-labeled ?allogeneic naive CD4+ T and CD8+ T cells (1?6105). The DC/T ratio was 1:1000 and 1:20, respectively. Cell proliferation was tested by measuring CFSE-dilution on day 6. On day 7, the production of intracellular cytokines (INF-c, IL-17, IL-13) and Granzyme B were.N 100), FITC-CD40 (1 in 50), FITCCD80 (1 in 50), PE-CD86 (1 in 400), PE-IA-IE (MHC class II) (Pharmingen) (1 in 800), as well as PB-CD8 (1 in 200), A700CD45.2 (1 in 300), APC-CD44 (1 in 400), PE-Cy7-CD25 (1 in 1500), APC-CD62L (1 in 400) (BD Biosciences and eBiosciences). For intracellular labeling of cytokines, IL-12 (p40/p70)-PE and TNF-a PE monoclonal antibodies (1 in 100)(Pharmingen) were used. The Aqua Dead Cell Stain (Invitrogen) was used to eliminate dead cells. Ovalbumine (OVA) was purchased from EndoGrade with purity.98 and endotoxin concentration ,1EU/mg. SIINFEKL peptide was purchased from Schafer-N. Human mDC were sorted from PBMC of blood from healthy donors using lineage cocktail-FITC (BD Biosciences), CD123-PE (BD Biosciences), CD11c-APC (Biolegend), HLA-DR-Quantum Red (Sigma). Human mDC were stained with CD86-PE, CD83-FITC, CD40-APC and HLA-DR-PB (eBiosciences or Biolegends).Flow CytometryTo analyse mouse BMDC maturation, 26105 cells were stimulated and stained with antibodies for classical activation markers. Appropriate isotype antibodies were used as controls. After staining, cells were washed with PBS 2 FCS, then PBS 1X and fixed in 1.5 paraformaldehyde before analysis on a FACScalibur cytometer (Becton Dickinson). Cells were always gated on CD11c for analysis and 100,000 CD11c+ events were collected from each sample. For the intracellular staining of IL-12 and TNF-a in mouse BMDCs, BD Cytofix/Cytoperm and BD Perm/ Wash buffers were used. At least 100.000 events were collected on FACSCanto II (BDBiosciences). For mouse CD4 and CD8 T cell assays, viable cells were analyzed for the decrease of CFSE (proliferation) and the expression of CD25, CD44 and CD62L (diluted in PBS 1X EDTA 2 mM). Human mDC or IL4-DCTetraacyl LPS Potentiate Intracellular Signallingactivation was analyzed by checking the surface expression of maturation markers CD40, CD83, CD86, HLA-DR after 16 h or 72 h of cell treatment with LPS variants, respectively. Flow cytometry analysis was performed using the FlowJo software. Histograms were drawn from and median fluorescence intensity values were determined on gated populations. At least 100,000 events were collected on FACSCanto II (BDBiosciences) or FACSAria (BDBiosciences).was analyzed by flow cytometry to study the cellular activation level.Co-culture of OT-II T cells with BMDCCD4+ T cells were isolated from the spleen of OT-II Rag-22/2 mice using a CD4+ T cell isolation kit (Dynal; Invitrogen). Purity was determined by staining with CD4, CD5, and TCR Va2. A total of 3 6103 BMDC stimulated for 8 h with different LPS were co-cultured 1662274 with 2 6 104 OT-II Rag-22/2 T cells in the presence of ovalbumin, ovalbumin (257?64) peptide (0.06 mg/mL) and of TGF-b (1 ng/mL) as indicated. After 5 days of culture, the expression of Foxp3 and CD25 was evaluated.Cytokine MeasurementMurine IL-12 and TNF-a were quantified in culture supernatants of stimulated DC by sandwich enzyme-linked immunosorbent assays (ELISA) according to the manufacturer’s protocol (Abcys). Human cytokine (IL-6, TNF-a, and IL-12p40) were determined using the BeadLyte cytokine assay kit (Upstate, MA).Human CD4+ and CD8+ T cell Responses56103 blood mDC were co-cultured with CFSE-labeled ?allogeneic naive CD4+ T and CD8+ T cells (1?6105). The DC/T ratio was 1:1000 and 1:20, respectively. Cell proliferation was tested by measuring CFSE-dilution on day 6. On day 7, the production of intracellular cytokines (INF-c, IL-17, IL-13) and Granzyme B were.
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