Journal: International Journal of Molecular Sciences

Article Title: Intraclonal Enrichment of IL-23 Receptor Complex Expression in the Proliferative Fraction of Chronic Lymphocytic Leukemia

doi: 10.3390/ijms27031202

Figure Lengend Snippet: IL-23R and IL-12R expression in ex vivo CLL cells assessed by flow cytometry. FSC is proportional to cell size and SSC reflects intracellular complexity/granularity (each dot represents one cell). Axes in marker plots show fluorescence intensity for the indicated markers. Percentages within gates indicate the fraction of cells relative to the parent population. Lymphocytes were identified by FSC/SSC properties, followed by doublet exclusion using pulse height vs. width plots. Within the single-cell gate, CD19 + /CD5 + CLL cells were selected. This population was further sub-divided into RF and PF based on the differential expression of CD184 and CD5. ( A ) Gating strategy used to identify lymphocytes, single cells, CD19 + CLL cells, and to discriminate proliferative fraction (PF) and resting fraction (RF); ( B ) surface expression of IL-23R, IL-12Rβ1, and IL-12Rβ2 receptor subunits in ex vivo CLL cells, shown for CD19 + PF and RF populations; ( C ) representative flow cytometry plots showing sorting of PF and RF populations from six CLL samples according to the gates indicated; ( D ) IL-12Rβ1 mRNA expression in sorted RF and PF cells, measured by RT-qPCR. Data are shown as mean ± SEM. Statistical significance of the difference is evaluated using the two-sided Wilcoxon signed-rank test. * p < 0.05; ** p < 0.01, ns: not significant. FSC: forward scatter; SSC: side scatter; PE Phycoerythrin; PE-Cy7: Phycoerythrin–Cyanine 7; APC: Allophycocyanin; AF 488: Alexa Fluor 488; PE VIO 770: near-infrared fluorochrome emitting in the ~770–780 nm range.

Article Snippet: The following monoclonal antibodies were used: mouse anti human IL-23R-PE (Cat. #FAB14001P, R&D Systems, Minneapolis, MN, USA), mouse anti human IL-12Rβ1-BB515 (CD212, BD Hori-zon, Cat. #565043, BD Biosciences, San Jose, CA, USA, and mouse anti human IL-12Rβ2-PerCP (Cat. #FAB1959C, R&D Systems).

Techniques: Expressing, Ex Vivo, Flow Cytometry, Marker, Fluorescence, Single Cell, Quantitative Proteomics, Quantitative RT-PCR

Journal: International Journal of Molecular Sciences

Article Title: Intraclonal Enrichment of IL-23 Receptor Complex Expression in the Proliferative Fraction of Chronic Lymphocytic Leukemia

doi: 10.3390/ijms27031202

Figure Lengend Snippet: IL-23R and IL-12R expression in CLL cells after incubation with CpG and CpG + IL-15 for 72 h assessed by flow cytometry analyses. ( A ) Representative flow cytometry gating strategy used to identify CLL cells and to assess IL-23R and IL-12R complex expression under the indicated culture conditions (medium alone, CpG, or CpG + IL-15) after 72 h; ( B ) percentage of CLL cells expressing the IL-23R receptor subunit, IL-12Rβ1 receptor subunit, and IL-12Rβ2 receptor subunit following 72 h incubation under the indicated conditions; ( C ) percentage of CLL cells expressing the IL-23R complex and the IL-12R complex following 72 h incubation under the indicated conditions. Statistical significance of the difference is evaluated using the two-sided Wilcoxon signed-rank test. * p < 0.05; **** p < 0.0001. FSC: forward scatter; SSC: side scatter; PE Phycoerythrin; PE-Cy7: Phycoerythrin–Cyanine 7; APC: Allophycocyanin; AF 488: Alexa Fluor 488.

Article Snippet: The following monoclonal antibodies were used: mouse anti human IL-23R-PE (Cat. #FAB14001P, R&D Systems, Minneapolis, MN, USA), mouse anti human IL-12Rβ1-BB515 (CD212, BD Hori-zon, Cat. #565043, BD Biosciences, San Jose, CA, USA, and mouse anti human IL-12Rβ2-PerCP (Cat. #FAB1959C, R&D Systems).

Techniques: Expressing, Incubation, Flow Cytometry

Journal: International Journal of Molecular Sciences

Article Title: Intraclonal Enrichment of IL-23 Receptor Complex Expression in the Proliferative Fraction of Chronic Lymphocytic Leukemia

doi: 10.3390/ijms27031202

Figure Lengend Snippet: Differential expression of IL-23R and IL-12R in CLL RF and PF subsets after stimulation with CpG and CpG + IL-15 assessed by flow cytometry analyses. ( A ) Representative flow cytometry gating strategy used to identify CLL cells and to distinguish RF and PF subsets, followed by assessment of IL-23R and IL-12R complex expression after 72 h incubation with CpG or CpG + IL-15; ( B ) percentage of RF and PF CLL cells expressing the IL-23R receptor subunit, IL-12Rβ1 receptor subunit, and IL-12Rβ2 receptor subunit after 72 h incubation under the indicated conditions; ( C ) percentage of RF and PF CLL cells expressing the IL-23R complex and the IL-12R complex after 72 h incubation under the indicated conditions. Each symbol represents an individual CLL sample; horizontal bars indicate mean ± SEM. Statistical significance of the difference is evaluated using the two-sided Wilcoxon signed-rank test. ** p < 0.01; **** p < 0.0001, ns: not significant. FSC: forward scatter; SSC: side scatter; PE Phycoerythrin; PE-Cy7: Phycoerythrin–Cyanine 7; APC: Allophycocyanin; AF 488: Alexa Fluor 488; BV421 = Brilliant Violet 421.

Article Snippet: The following monoclonal antibodies were used: mouse anti human IL-23R-PE (Cat. #FAB14001P, R&D Systems, Minneapolis, MN, USA), mouse anti human IL-12Rβ1-BB515 (CD212, BD Hori-zon, Cat. #565043, BD Biosciences, San Jose, CA, USA, and mouse anti human IL-12Rβ2-PerCP (Cat. #FAB1959C, R&D Systems).

Techniques: Quantitative Proteomics, Flow Cytometry, Expressing, Incubation

Journal: International Journal of Biological Sciences

Article Title: BRD7 Inhibited Immune Escape in Nasopharyngeal Carcinoma via Inhibiting PD-L1 Expression

doi: 10.7150/ijbs.103703

Figure Lengend Snippet: BRD7 downregulated PD-L1 expression and enhanced the cytotoxicity of T lymphocytes against NPC cells. (A) CIBERSORT determined the proportion of immune cell populations in NPC. (B) CD8 + T cell infiltration plays a vital role in NPC. (C) Correlation analysis between the expression of BRD7 and immune cells abundance. (D) Correlation analysis between BRD7 expression level and immune cell subtypes in GSE102349 of NPC. (E) Clonogenic assays of 5-8F and CNE2 cells stably transfected with BRD7 overexpression and knockdown or empty vector plasmids with or without T cells co-culture and PD-L1 antibody incubation. Atezolizumab: the PD-L1 antibody. (F) CCK-8 assay of 5-8F and CNE2 cells stably transfected with BRD7 overexpression and knockdown or empty vector plasmids with or without T cells co-culture and PD-L1 antibody incubation. Absorbance values were detected at 450 nm. *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001; ns, not significant. (G) Flow cytometry detecting the apoptosis ratio of CD8 + T cells in T cells co-cultured with 5-8F or CNE2 cells stably transfected with BRD7 overexpression or empty vector plasmids with or without PD-L1 antibody incubation. (H) Flow cytometry detecting the apoptosis ratio of CD8 + T cells in T cells co-cultured with 5-8F or CNE2 cells stably transfected with BRD7 knockdown or empty vector plasmids. (I) Flow cytometry detecting the ratio of PD-1 + CD8 + T cells in T cells co-cultured with 5-8F or CNE2 cells stably transfected with BRD7 overexpression or empty vector plasmids with or without PD-L1 antibody incubation. (J) Flow cytometry detecting the ratio of PD-1 + CD8 + T cells in T cells co-cultured with 5-8F or CNE2 cells stably transfected with BRD7 knockdown or empty vector plasmids. (K) ELISA detecting the IFN-γ content in the culture medium of T cells co-cultured with 5-8F cells stably transfected with BRD7 overexpression or empty vector plasmids and CNE2 cells stably transfected with BRD7 knockdown or empty vector plasmids with or without PD-L1 antibody incubation for 24 hours. *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001; ns, not significant.

Article Snippet: T lymphocytes and tumor cells were cocultured at a ratio of 10:1 for 24 h. T cells were stained with an Annexin V-FITC/PI Apoptosis Detection Kit (Biosharp, China), APC Anti-Human CD3 Antibody (Elabscience, China), PerCP Anti-Human CD8a Antibody (Elabscience, China), and FITC Anti-Human CD279/PD-1 Antibody (Elabscience, China) according to the instructions.

Techniques: Expressing, Stable Transfection, Transfection, Over Expression, Knockdown, Plasmid Preparation, Co-Culture Assay, Incubation, CCK-8 Assay, Flow Cytometry, Cell Culture, Enzyme-linked Immunosorbent Assay

Journal: International Journal of Biological Sciences

Article Title: BRD7 Inhibited Immune Escape in Nasopharyngeal Carcinoma via Inhibiting PD-L1 Expression

doi: 10.7150/ijbs.103703

Figure Lengend Snippet: BRD7 could inhibit the immune escape of NPC. (A) Design of the experiment in vivo . (B) Images of the appearance of subcutaneous tumors in mice. n = 5 per group. (C) Statistical analysis of subcutaneous tumor weight. n = 5 per group. (D) Tumor growth curve. n = 5 per group. (E) Relative BRD7 and PD-L1 mRNA levels measured by q-PCR in tumor tissues. n = 5 per group. (F) Western blot analysis of BRD7, PD-L1, and PI3K/AKT pathway molecules in tumor tissues. (G) Representative images of immunohistochemical staining for BRD7, PD-L1, PI3K/AKT pathway molecules, and CD8 expression in tumor tissues. The scale bar is 20 μm. *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001; ns, not significant.

Article Snippet: T lymphocytes and tumor cells were cocultured at a ratio of 10:1 for 24 h. T cells were stained with an Annexin V-FITC/PI Apoptosis Detection Kit (Biosharp, China), APC Anti-Human CD3 Antibody (Elabscience, China), PerCP Anti-Human CD8a Antibody (Elabscience, China), and FITC Anti-Human CD279/PD-1 Antibody (Elabscience, China) according to the instructions.

Techniques: In Vivo, Western Blot, Immunohistochemical staining, Staining, Expressing

Journal: Arteriosclerosis, Thrombosis, and Vascular Biology

Article Title: Increase of Circulating Endothelial Progenitor Cells in Patients with Coronary Artery Disease After Exercise-Induced Ischemia

doi: 10.1161/01.atv.0000124104.23702.a0

Figure Lengend Snippet: Figure 1. Characterization of attached MNCs by FACS analysis (A), immunofluo- rescent staining (B, C), and RT-PCR (D). A, Representative light microscopic pic- ture and histograms of FACS analysis of cultured EPCs after 4 days for VE-cadherin, KDR, and CD3 are depicted. Plots show isotype control (gray) versus specific antibody staining (black). B and C, Immunofluorescent staining of attached cells with anti-vWF, anti-CD31, and anti-CD45 staining is shown. D, The RT-PCR analysis of the attached cells revealed a positive amplification of GAPDH (lane 2), eNOS (lane 4), and vWF (lane 5), whereas the negative controls (lane 1,3) were negative. M100-bp size marker.

Article Snippet: To quantify the content of circulating EPCs by FACS analysis, a volume of 200 L peripheral blood was incubated for 20 minutes with biotinylated anti-human KDR (R&D Systems) followed by the addition of allophyocyanin conjugated mouse anti-human CD34 (BD Pharmingen), PerCP conjugated mouse anti-human CD3, and FITClabeled streptavidin (Dako), and a further incubation in the dark for 20 minutes.

Techniques: Staining, Reverse Transcription Polymerase Chain Reaction, Cell Culture, Control, Marker

Journal: PLoS ONE

Article Title: The novel multi-cytokine inhibitor TO-207 specifically inhibits pro-inflammatory cytokine secretion in monocytes without affecting the killing ability of CAR T cells

doi: 10.1371/journal.pone.0231896

Figure Lengend Snippet: A) Effects of PSL and TO-207 on the cytotoxicity of CAR T cells. K562/CD19/fLucEGFP cells (3 × 10 3 ) were co-cultured with CD4 + or CD8 + CAR T cells (1.5 × 10 4 ), and treated with different concentrations of PSL and TO-207. Viable target cells were quantified using the luciferase assay after 72 h of co-culture. Values were normalized to viable K562/CD19/fLucEGFP cells cultured alone. The error bars represent SDs from three independent experiments. B) Effects of PSL and TO-207 on CAR T cell degranulation. K562/CD19 cells (5 × 10 5 ) and CAR T cells (5 × 10 5 ) were co-cultured in 500 μl T-cell expansion medium in the absence or presence of PSL or TO-207. Following 68 h of co-culture, monensin (2 μM) and APC–anti-human CD107a antibody were added. Cells were incubated for an additional 4 h, and membrane expression of CD107a was determined by flow cytometry. Representative data of four independent experiments are shown. C) Mean fluorescence intensity (MFI) of samples in Fig 5B. The error bars represent SEs from four independent experiments. D) Sustained cytotoxicity of CAR T cells following TO-207 treatment. K562/CD19/fLucEGFP cells (1 × 10 4 ), CAR T cells (5 × 10 4 ), and CD14 + cells (5 × 10 4 ) were co-cultured in the absence or presence of PSL or TO-207 for 72 h, and viable target cells were quantified by the luciferase assay. Values were normalized to the well containing K562/CD19/fLucEGFP cells alone. The error bars represent SDs from three independent experiments. The linear dose-response relationship was assessed using log-transformed dose values (to the base 10) in a mixed model, in which the zero dose was replaced by the log (minimal dose) - 1. P < 0.05 was considered statistically significant. n.s.: not significant.

Article Snippet: Flow cytometry was performed using allophycocyanin (APC)-conjugated IgG 1 (BioLegend), APC–anti-human CD19 antibody (BioLegend), APC–anti human CD107a (BioLegend), APC–Cy7–anti-human CD3 antibody (BioLegend), V500–anti-human CD4 antibody (BD Biosciences, San Jose, CA, USA), and PerCP–Cy5.5–anti-human CD8 antibody (TONBO Biosciences, San Diego, CA, USA).

Techniques: Cell Culture, Luciferase, Co-Culture Assay, Incubation, Membrane, Expressing, Flow Cytometry, Fluorescence, Transformation Assay