Journal: Oncology Letters

Article Title: Role of programmed death ligands in effective T-cell interactions in extranodal natural killer/T-cell lymphoma

doi: 10.3892/ol.2014.2356

Figure Lengend Snippet: Representative immunohistochemical streptavidin-peroxidase staining in extranodal natural killer/T-cell lymphoma (upper row) and rhinitis tissues (lower row). The positive cases of (A and D) programmed death 1, (B and E) PD-L1 and (C and F) PD-L2 (magnification, ×200). PD-L, programmed death ligand.

Article Snippet: The antigen retrieval was conducted in 0.01 mol/l citrate (pH 6.0) and the slides were incubated overnight with rabbit anti-human PD-L1 polyclonal antibody (1:120; Proteintech, Chicago, IL, USA), rabbit anti-human PD-L2 polyclonal antibody (1:150) and mouse anti-human PD-1 monoclonal antibody (mAb; 1:100) (both ZSGB-BIO, Beijing, China) and phosphate-buffered saline was used as a blank control.

Techniques: Immunohistochemical staining, Staining

Journal: Oncology Letters

Article Title: Role of programmed death ligands in effective T-cell interactions in extranodal natural killer/T-cell lymphoma

doi: 10.3892/ol.2014.2356

Figure Lengend Snippet: PD-1 expression in (A) CD4 + and (B) CD8 + T-cell subsets in 20 ENKL patients was significantly increased compared with that in 10 HVs (P<0.05). Representative PD-1 expression in (C) CD4 + and (D) CD8 + T-cell subsets in six ENKL patients was (E) downregulated with chemotherapy. (F) T-helper cell type 1 cytokine (IL-2 and IFN-γ) mean production levels in the serum of 20 ENKL patients were significantly lower than those in 10 HVs (P<0.05). PD1, programmed death 1; ENKL, extranodal natural killer/T-cell lymphoma; HVs, healthy volunteers; IL-2 interleukin 2; IFN-γ, interferon γ.

Article Snippet: The antigen retrieval was conducted in 0.01 mol/l citrate (pH 6.0) and the slides were incubated overnight with rabbit anti-human PD-L1 polyclonal antibody (1:120; Proteintech, Chicago, IL, USA), rabbit anti-human PD-L2 polyclonal antibody (1:150) and mouse anti-human PD-1 monoclonal antibody (mAb; 1:100) (both ZSGB-BIO, Beijing, China) and phosphate-buffered saline was used as a blank control.

Techniques: Expressing

Journal: Oncology Letters

Article Title: Role of programmed death ligands in effective T-cell interactions in extranodal natural killer/T-cell lymphoma

doi: 10.3892/ol.2014.2356

Figure Lengend Snippet: (A) Purity of CD8 + T cells separated by magnetic-activated cell sorting was 99%. (B) Purity of CD8 + PD-1 + T cells was 96.2% following the stimulation of allogeneic CD8 + T cells with phytohemagglutinin for 48 h. (C) SNK-6 cells were used as the control group and, following the coculture of SNK-6 cells and CD8 + T cells for 72 h, a significant inhibitory effect of PD-L1 on allogeneic CD8 + T-helper type 1 cytokine (IL-2 and IFN-γ) secretion was observed; (A and B) P<0.05. (D) CD8 + T-cell apoptosis in groups A and B was not altered significantly compared with activated CD8 + T cells at 72 h (P>0.05). (E) SNK-6 cells were used as the control group and cells harvested at 0, 24, 48 and 72 h were analyzed by flow cytometry gating CFSE + events. The proliferation index was not significantly different among the groups (P>0.05). PD-1, programme death 1; PD-L. programmed death ligand; IL-2 interleukin 2; IFN-γ, interferon γ; CFSE, carboxy-fluorescein succinimidyl ester.

Article Snippet: The antigen retrieval was conducted in 0.01 mol/l citrate (pH 6.0) and the slides were incubated overnight with rabbit anti-human PD-L1 polyclonal antibody (1:120; Proteintech, Chicago, IL, USA), rabbit anti-human PD-L2 polyclonal antibody (1:150) and mouse anti-human PD-1 monoclonal antibody (mAb; 1:100) (both ZSGB-BIO, Beijing, China) and phosphate-buffered saline was used as a blank control.

Techniques: FACS, Flow Cytometry

Journal: Materials Today Bio

Article Title: Developing immune-regulatory materials using immobilized monosaccharides with immune-instructive properties

doi: 10.1016/j.mtbio.2020.100080

Figure Lengend Snippet: Flow cytometry data are shown as a heat map summarizing the expression profile of three surface markers (CD86, CD40, and CD274) on DCs after incubation on immobilized monosaccharide libraries in the presence of a TLR4 ligand (LPS). Unstimulated (immature) DCs were used as a negative control. All changes are expressed as a percentage of expression levels in mature (LPS-stimulated) DCs. A reduction in CD40 expression was observed in most conditions with the highest reduction in fucose-contained libraries compared to LPS alone. CD86 expression was higher in a number of conditions (particularly mixers of Gal1 and Gal2); however, these did not reach statistical significance. CD274 (PD-L1) expression showed a significant increase in Man1 and Gal2 combinations. Data are shown as mean ± SD of three independent donors where ∗ p <0.05, ∗∗ p <0.01, ∗∗∗ p <0.001, and ∗∗∗∗ p <0.0001.

Article Snippet: DCs were then incubated with labeled antibodies CD274 (APC clone REA1197), CD40 PE (clone HB14), and CD86 FITC (clone FM95) and isotype-matched mouse antibody controls (all from Miltenyi Biotec) for 20 min in the dark at 4 °C.

Techniques: Flow Cytometry, Expressing, Incubation, Negative Control