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<t>CD24</t> expression is associated with the PI3K‐Akt signalling and mTOR pathways. (A) Hierarchical cluster analysis showing the clade of 44 genes (41 annotated) with similar differential gene expression patterns as CD24a . (B) Pathway network analysis generated from the differentially expressed 41‐gene list identified the PI3K/Akt and mTOR signalling pathway as being associated with CD24 expression in developing B cells. The red boxes indicate nodes with terms related to PI3K‐Akt or mTOR signalling. (C) WEHI‐231‐GFP cells were pre‐treated with LY294002 or DMSO (vehicle control) for 15 min then cells were stimulated with isotype antibody (isotype) or anti‐CD24 stimulating (CD24) antibody for the times indicated. PIP 3 levels were analysed by ELISA, n = 4, significance was determined by a one‐way ANOVA followed by the Sidak's multiple comparison test * p < 0.05.
Functional Grade Primary Monoclonal M1/69 Rat Anti Mouse Cd24 Antibody, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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. Porphyromonas gingivalis culture supernatant affects progeny virus release. A , MDCK cells were inoculated with influenza A/Udorn/72 virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays. Values are presented as the mean ± SD, n = 3. ∗ p < 0.05; ∗∗ p < 0.01. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h of incubation, the culture supernatants were harvested and viral <t>M1</t> protein expression was detected using western blotting with a specific <t>monoclonal</t> antibody.
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. Porphyromonas gingivalis culture supernatant affects progeny virus release. A , MDCK cells were inoculated with influenza A/Udorn/72 virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays. Values are presented as the mean ± SD, n = 3. ∗ p < 0.05; ∗∗ p < 0.01. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h of incubation, the culture supernatants were harvested and viral <t>M1</t> protein expression was detected using western blotting with a specific <t>monoclonal</t> antibody.
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. Porphyromonas gingivalis culture supernatant affects progeny virus release. A , MDCK cells were inoculated with influenza A/Udorn/72 virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays. Values are presented as the mean ± SD, n = 3. ∗ p < 0.05; ∗∗ p < 0.01. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h of incubation, the culture supernatants were harvested and viral <t>M1</t> protein expression was detected using western blotting with a specific <t>monoclonal</t> antibody.
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Immunohistochemical staining of DNA mismatch repair (MMR) markers <t>MLH1,</t> PMS2, MSH2, and MSH6. (A–D) Examples of DNA MMR-proficient staining patterns showing intact/retained nuclear staining. (E,F) Examples of MMR-deficient staining patterns showing loss of expression of PMS2 and MLH1, respectively; (magnification ×100).
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CD24 expression is associated with the PI3K‐Akt signalling and mTOR pathways. (A) Hierarchical cluster analysis showing the clade of 44 genes (41 annotated) with similar differential gene expression patterns as CD24a . (B) Pathway network analysis generated from the differentially expressed 41‐gene list identified the PI3K/Akt and mTOR signalling pathway as being associated with CD24 expression in developing B cells. The red boxes indicate nodes with terms related to PI3K‐Akt or mTOR signalling. (C) WEHI‐231‐GFP cells were pre‐treated with LY294002 or DMSO (vehicle control) for 15 min then cells were stimulated with isotype antibody (isotype) or anti‐CD24 stimulating (CD24) antibody for the times indicated. PIP 3 levels were analysed by ELISA, n = 4, significance was determined by a one‐way ANOVA followed by the Sidak's multiple comparison test * p < 0.05.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24 expression is associated with the PI3K‐Akt signalling and mTOR pathways. (A) Hierarchical cluster analysis showing the clade of 44 genes (41 annotated) with similar differential gene expression patterns as CD24a . (B) Pathway network analysis generated from the differentially expressed 41‐gene list identified the PI3K/Akt and mTOR signalling pathway as being associated with CD24 expression in developing B cells. The red boxes indicate nodes with terms related to PI3K‐Akt or mTOR signalling. (C) WEHI‐231‐GFP cells were pre‐treated with LY294002 or DMSO (vehicle control) for 15 min then cells were stimulated with isotype antibody (isotype) or anti‐CD24 stimulating (CD24) antibody for the times indicated. PIP 3 levels were analysed by ELISA, n = 4, significance was determined by a one‐way ANOVA followed by the Sidak's multiple comparison test * p < 0.05.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Expressing, Gene Expression, Generated, Control, Enzyme-linked Immunosorbent Assay, Comparison

CD24‐mediated EV transfer is regulated by PI3K. (A and B) WEHI‐231‐GFP cells were pre‐treated with LY294002 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype, iso) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0003 for A and p = 0.0002 for B) followed by the Sidak's multiple comparison test * p < 0.05, **** p < 0.001. (C) Total cell lysates from WEHI‐231‐GFP cells pre‐treated with DMSO or LY2940002 for 15 min, then stimulated with the above antibodies for different times indicated. Phosphorylated Akt and total Akt expression levels were determined by immunoblotting. (D) WEHI‐231‐GFP cells were transfected with scrambled control siRNA or PI3Kδ siRNA, and PI3Kδ and GAPDH levels determined by immunoblotting. Shown are representative western blots from three replicates with molecular weight marker positions indicated on the left of each blot. (E and F) WEHI‐231‐GFP cells with or without PI3Kδ siRNA knock‐down were stimulated with anti‐CD24 or isotype for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (E) Percent GFP and tdTomato double‐positive cells. (F) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 3, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0015 for E and p = 0.0088 for F) followed by the Sidak's multiple comparison test ** p < 0.01, *** p < 0.005.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24‐mediated EV transfer is regulated by PI3K. (A and B) WEHI‐231‐GFP cells were pre‐treated with LY294002 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype, iso) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0003 for A and p = 0.0002 for B) followed by the Sidak's multiple comparison test * p < 0.05, **** p < 0.001. (C) Total cell lysates from WEHI‐231‐GFP cells pre‐treated with DMSO or LY2940002 for 15 min, then stimulated with the above antibodies for different times indicated. Phosphorylated Akt and total Akt expression levels were determined by immunoblotting. (D) WEHI‐231‐GFP cells were transfected with scrambled control siRNA or PI3Kδ siRNA, and PI3Kδ and GAPDH levels determined by immunoblotting. Shown are representative western blots from three replicates with molecular weight marker positions indicated on the left of each blot. (E and F) WEHI‐231‐GFP cells with or without PI3Kδ siRNA knock‐down were stimulated with anti‐CD24 or isotype for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (E) Percent GFP and tdTomato double‐positive cells. (F) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 3, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0015 for E and p = 0.0088 for F) followed by the Sidak's multiple comparison test ** p < 0.01, *** p < 0.005.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Control, Co-Culture Assay, Incubation, Comparison, Expressing, Western Blot, Transfection, Molecular Weight, Marker, Knockdown

CD24‐mediated EV transfer is dependent on Akt and mTOR signalling pathways. (A and B) WEHI‐231‐GFP cells were pre‐treated with MK‐2206 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (Isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0074 for A and p = 0.0002 for (B) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, **** p < 0.001. (C and D) WEHI‐231‐GFP cells were pre‐treated with Torin 1, Rapamycin, JR‐AB2‐011 or DMSO for 15 min, then stimulated with anti‐CD24 or isotype control for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (C) Percent GFP and tdTomato double‐positive cells and (D) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0143 for C and p = 0.0066 for D) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, and **** p < 0.001.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24‐mediated EV transfer is dependent on Akt and mTOR signalling pathways. (A and B) WEHI‐231‐GFP cells were pre‐treated with MK‐2206 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (Isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0074 for A and p = 0.0002 for (B) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, **** p < 0.001. (C and D) WEHI‐231‐GFP cells were pre‐treated with Torin 1, Rapamycin, JR‐AB2‐011 or DMSO for 15 min, then stimulated with anti‐CD24 or isotype control for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (C) Percent GFP and tdTomato double‐positive cells and (D) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0143 for C and p = 0.0066 for D) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, and **** p < 0.001.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Control, Co-Culture Assay, Incubation, Comparison

CD24‐mediated EV transfer is dependent on ROCK. (A and B) WEHI‐231‐GFP cells were pre‐treated with Y27632 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype, iso) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.03 for A and p = 0.0069 for B) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, **** p < 0.001. (C) Total cell lysates from WEHI‐231‐GFP cells pre‐treated with DMSO or Y27632 for 15 min, then stimulated with the above antibodies for different times indicated. Phosphorylated Cofilin and total Cofilin expression levels were determined by immunoblotting. Shown are representative western blots from three replicates with molecular weight marker positions indicated on the left of each blot. (D) WEHI‐231‐GFP cells were transfected with scrambled control siRNA or ROCK siRNA, and ROCK and GAPDH levels determined by immunoblotting. (E and F) WEHI‐231‐GFP cells with or without ROCK siRNA knock‐down were stimulated with anti‐CD24 or isotype for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (E) Percent GFP and tdTomato double‐positive cells and (F) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 3, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0011 for E and p = 0.0013 for F) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24‐mediated EV transfer is dependent on ROCK. (A and B) WEHI‐231‐GFP cells were pre‐treated with Y27632 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype, iso) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.03 for A and p = 0.0069 for B) followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, **** p < 0.001. (C) Total cell lysates from WEHI‐231‐GFP cells pre‐treated with DMSO or Y27632 for 15 min, then stimulated with the above antibodies for different times indicated. Phosphorylated Cofilin and total Cofilin expression levels were determined by immunoblotting. Shown are representative western blots from three replicates with molecular weight marker positions indicated on the left of each blot. (D) WEHI‐231‐GFP cells were transfected with scrambled control siRNA or ROCK siRNA, and ROCK and GAPDH levels determined by immunoblotting. (E and F) WEHI‐231‐GFP cells with or without ROCK siRNA knock‐down were stimulated with anti‐CD24 or isotype for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (E) Percent GFP and tdTomato double‐positive cells and (F) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 3, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0011 for E and p = 0.0013 for F) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Control, Co-Culture Assay, Incubation, Comparison, Expressing, Western Blot, Molecular Weight, Marker, Transfection, Knockdown

CD24‐mediated EV transfer is controlled by actin cytoskeleton re‐organisation. (A and B) WEHI‐231‐GFP cells were pre‐treated with Cytochalasin D or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0017 for A and p = 0.0027 for B) followed by the Sidak's multiple comparison test ** p < 0.01, *** p < 0.005, and **** p < 0.001.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24‐mediated EV transfer is controlled by actin cytoskeleton re‐organisation. (A and B) WEHI‐231‐GFP cells were pre‐treated with Cytochalasin D or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0017 for A and p = 0.0027 for B) followed by the Sidak's multiple comparison test ** p < 0.01, *** p < 0.005, and **** p < 0.001.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Control, Co-Culture Assay, Incubation, Comparison

CD24‐mediated EV transfer is controlled by aSMase activity. (A and B) WEHI‐231‐GFP cells were pre‐treated with imipramine or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0006 for A and p = 0.0006 for B) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001. (C and D) WEHI‐231‐GFP cells were pre‐treated with ARC39 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (C) Percent GFP and tdTomato double‐positive cells and (D) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p < 0.0001 for C and p < 0.0001 for B) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001. (E) WEHI‐231‐GFP cells were pre‐treated with imipramine or DMSO (vehicle control) for 15 min then cells were stimulated with isotype antibody (isotype) or anti‐CD24 stimulating antibody (CD24) for the times indicated. PIP 3 levels were analysed by ELISA, n = 5, significance was determined by a one‐way ANOVA followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24‐mediated EV transfer is controlled by aSMase activity. (A and B) WEHI‐231‐GFP cells were pre‐treated with imipramine or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (A) Percent GFP and tdTomato double‐positive cells and (B) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 4, statistical significance determined by a two‐way ANOVA (interaction significant at p = 0.0006 for A and p = 0.0006 for B) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001. (C and D) WEHI‐231‐GFP cells were pre‐treated with ARC39 or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by washout and then a 24 h co‐culture with WEHI‐303‐tdTomato cells. (C) Percent GFP and tdTomato double‐positive cells and (D) Percent IgM and tdTomato double‐positive cells after 24 h incubation. n = 6, statistical significance determined by a two‐way ANOVA (interaction significant at p < 0.0001 for C and p < 0.0001 for B) followed by the Sidak's multiple comparison test *** p < 0.005, **** p < 0.001. (E) WEHI‐231‐GFP cells were pre‐treated with imipramine or DMSO (vehicle control) for 15 min then cells were stimulated with isotype antibody (isotype) or anti‐CD24 stimulating antibody (CD24) for the times indicated. PIP 3 levels were analysed by ELISA, n = 5, significance was determined by a one‐way ANOVA followed by the Sidak's multiple comparison test * p < 0.05, ** p < 0.01.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Activity Assay, Control, Co-Culture Assay, Incubation, Comparison, Enzyme-linked Immunosorbent Assay

CD24 does not change overall numbers of secreted EVs while PI3K, ROCK and aSMase increase ectosome production when CD24 is stimulated. WEHI‐231‐GFP cells were pre‐treated with LY294002, Y27632, imipramine or ARC39 for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by a washout and 1 h incubation in EV‐depleted media. EVs were stained with (A) membrane stain vFRed, (B) vFRed and GFP, (C) vFRed and ectosomal markers (CD9 and ANXA2) or (D) vFRed and exosomal markers (CD63 and LAMP‐1). n = 4, statistical significance determined by a two‐way ANOVA, followed by Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, **** p < 0.001. (A) Stimulation significant at p < 0.0001, (B) Stimulation significant at p < 0.0001 and inhibitor treatment significant at p < 0.01, (C) Stimulation significant at p < 0.0001 and (D) Stimulation and inhibitor treatment were not significant.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24 does not change overall numbers of secreted EVs while PI3K, ROCK and aSMase increase ectosome production when CD24 is stimulated. WEHI‐231‐GFP cells were pre‐treated with LY294002, Y27632, imipramine or ARC39 for 15 min, then stimulated with anti‐CD24 (CD24) or isotype control (isotype) for 15 min, followed by a washout and 1 h incubation in EV‐depleted media. EVs were stained with (A) membrane stain vFRed, (B) vFRed and GFP, (C) vFRed and ectosomal markers (CD9 and ANXA2) or (D) vFRed and exosomal markers (CD63 and LAMP‐1). n = 4, statistical significance determined by a two‐way ANOVA, followed by Sidak's multiple comparison test * p < 0.05, ** p < 0.01, *** p < 0.005, **** p < 0.001. (A) Stimulation significant at p < 0.0001, (B) Stimulation significant at p < 0.0001 and inhibitor treatment significant at p < 0.01, (C) Stimulation significant at p < 0.0001 and (D) Stimulation and inhibitor treatment were not significant.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Control, Incubation, Staining, Membrane, Comparison

CD24 induces dynamic membrane movement in B cells via PI3K and ROCK. WEHI‐231‐GFP cells were pre‐treated with LY294002 (CD24+LY) or Y27632 (CD24+Y) or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype (Iso) control. (A) The cells were captured at 30 min after stimulation. White arrows indicate where EV release was seen in the videos. Scale bar = 2 µm. (B) Cell activation was determined using the coefficient of variance (cv) of the area over 10 images covering 5 min and visualised with violin plots (the filled black circle indicates the mean). Five to 12 cells were analysed per video for a total of 38–40 cells analysed per treatment group. Pairwise comparisons using the Kolmogorov–Smirnov test were used to determine significant differences: * p < 0.05, ** p < 0.01.

Journal: Journal of Extracellular Vesicles

Article Title: CD24 Regulates the Formation of Ectosomes in B Lymphocytes

doi: 10.1002/jev2.70093

Figure Lengend Snippet: CD24 induces dynamic membrane movement in B cells via PI3K and ROCK. WEHI‐231‐GFP cells were pre‐treated with LY294002 (CD24+LY) or Y27632 (CD24+Y) or DMSO for 15 min, then stimulated with anti‐CD24 (CD24) or isotype (Iso) control. (A) The cells were captured at 30 min after stimulation. White arrows indicate where EV release was seen in the videos. Scale bar = 2 µm. (B) Cell activation was determined using the coefficient of variance (cv) of the area over 10 images covering 5 min and visualised with violin plots (the filled black circle indicates the mean). Five to 12 cells were analysed per video for a total of 38–40 cells analysed per treatment group. Pairwise comparisons using the Kolmogorov–Smirnov test were used to determine significant differences: * p < 0.05, ** p < 0.01.

Article Snippet: Cells were then stimulated with 10 μg/mL of functional grade primary monoclonal M1/69 rat anti‐mouse CD24 antibody (16‐0242085, eBioscience) or 10 μg/mL matching primary isotype antibody (16‐4031‐85, eBioscience) that was pre‐incubated with 5 μg/mL goat anti‐rat secondary antibody (112‐005‐003, Jackson ImmunoResearch) for 15 min. After treatment, cells were centrifuged and phosphoinositides were extracted and measured using the PIP 3 ELISA kit (Creative Diagnostic, DEIA‐XYZ6).

Techniques: Membrane, Control, Activation Assay

. Porphyromonas gingivalis culture supernatant affects progeny virus release. A , MDCK cells were inoculated with influenza A/Udorn/72 virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays. Values are presented as the mean ± SD, n = 3. ∗ p < 0.05; ∗∗ p < 0.01. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h of incubation, the culture supernatants were harvested and viral M1 protein expression was detected using western blotting with a specific monoclonal antibody.

Journal: The Journal of Biological Chemistry

Article Title: Porphyromonas gingivalis gingipain potentially activates influenza A virus infectivity through proteolytic cleavage of viral hemagglutinin

doi: 10.1016/j.jbc.2025.108166

Figure Lengend Snippet: . Porphyromonas gingivalis culture supernatant affects progeny virus release. A , MDCK cells were inoculated with influenza A/Udorn/72 virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays. Values are presented as the mean ± SD, n = 3. ∗ p < 0.05; ∗∗ p < 0.01. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated with P. gingivalis FDC381 culture supernatant (0.1, 0.25, or 0.5% v/v). Following 24 h of incubation, the culture supernatants were harvested and viral M1 protein expression was detected using western blotting with a specific monoclonal antibody.

Article Snippet: Fixed cells were incubated for 1 h with a mouse monoclonal antibody against M1 (Takara Bio) in PBS containing 1% BSA, followed by incubation for 1 h with Alexa Fluor 488 anti-mouse IgG (Thermo Fisher Scientific) in PBS containing 1% BSA and Hoechst 33342 (Thermo Fisher Scientific).

Techniques: Virus, Adsorption, Incubation, Expressing, Western Blot

. Gingipain inhibitors hinders cleavage activation of influenza virus HA induced by P. gingivalis culture supernatant . A , Influenza A/Udorn/72 virus were treated with P. gingivalis FDC381 culture supernatant (2% v/v) and 5 μM gingipain inhibitor (KYT-1; Rgp inhibitor, KYT-36; Kgp inhibitor) for 120 min. HA cleavage activity was assessed using western blotting. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated in MEM containing either bacterial culture medium, trypsin (1 μg/ml), or P. gingivalis FDC381 culture supernatant (0.5% v/v) with or without 5 μM gingipain inhibitors (KYT-1, KYT-36). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays ( upper panel ). Values are presented as the mean ± SD, n = 3. ∗∗ p < 0.01; ∗∗∗ p < 0.001; ns, not significant. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. In addition, viral M1 protein expression was detected in the culture media using western blotting with a specific monoclonal antibody ( lower panel ).

Journal: The Journal of Biological Chemistry

Article Title: Porphyromonas gingivalis gingipain potentially activates influenza A virus infectivity through proteolytic cleavage of viral hemagglutinin

doi: 10.1016/j.jbc.2025.108166

Figure Lengend Snippet: . Gingipain inhibitors hinders cleavage activation of influenza virus HA induced by P. gingivalis culture supernatant . A , Influenza A/Udorn/72 virus were treated with P. gingivalis FDC381 culture supernatant (2% v/v) and 5 μM gingipain inhibitor (KYT-1; Rgp inhibitor, KYT-36; Kgp inhibitor) for 120 min. HA cleavage activity was assessed using western blotting. B , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells were incubated in MEM containing either bacterial culture medium, trypsin (1 μg/ml), or P. gingivalis FDC381 culture supernatant (0.5% v/v) with or without 5 μM gingipain inhibitors (KYT-1, KYT-36). Following 24 h incubation, the culture media were harvested and virus titers were determined using plaque assays ( upper panel ). Values are presented as the mean ± SD, n = 3. ∗∗ p < 0.01; ∗∗∗ p < 0.001; ns, not significant. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. In addition, viral M1 protein expression was detected in the culture media using western blotting with a specific monoclonal antibody ( lower panel ).

Article Snippet: Fixed cells were incubated for 1 h with a mouse monoclonal antibody against M1 (Takara Bio) in PBS containing 1% BSA, followed by incubation for 1 h with Alexa Fluor 488 anti-mouse IgG (Thermo Fisher Scientific) in PBS containing 1% BSA and Hoechst 33342 (Thermo Fisher Scientific).

Techniques: Activation Assay, Virus, Activity Assay, Western Blot, Adsorption, Incubation, Expressing

. Influenza virus cleavage activation varies among gingipain-deficient P. gingivalis mutants . A , A/Udorn/72 influenza virus was treated with the culture supernatants (2% v/v) from P. gingivalis ATCC 33277 (wild type) or specific gingipain-deficient mutants of P. gingivalis , KDP 129 (Δ kgp ), KDP133 (Δ rgpA Δ rgpB ), and KDP136 (Δ kgp Δ rgpA Δ rgpB ) at 37 °C for 120 min. HA cleavage activity was assessed using western blotting. B , ( left panel ) generated 1972 H3N2 HA model with potential ( middle panel ) Rgp and ( right panel ) Kgp cleavage sites are shown. HA0 cleavage site is indicated with a dotted box. Potential Rgp cleavage sites are highlighted in red ; potential Kgp cleavage sites are highlighted in green . Magnified view of the HA0 cleavage site is indicated with a solid box . R329 involved in the HA0 cleavage site is shown and distinguished in a wireframe display. C , MDCK cells were inoculated with or without influenza A/Udorn/72 virus at an MOI of 5. After viral adsorption for 30 min, the cells were incubated in either bacterial culture medium, trypsin (1 μg/ml), or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). After 4 h of incubation, cell lysates were harvested and phosphorylated Akt (p-Akt) or total Akt were detected using Western blotting using specific antibodies. β-actin was used as loading control. D , for the indirect IF assay, MDCK cells were inoculated with the virus at an MOI of 0.01. After viral adsorption for 1 h, the cells were incubated for 16 h in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Viral M1 protein was stained with anti-influenza A M1 protein antibody and Alexa Fluor 488 secondary antibody ( green ), and the cell nuclei were stained with Hoechst 33,342 ( blue ). Scale bar, 100 μm. E , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells incubated in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Following 16 h of incubation, cell lysates were harvested, and viral M1 protein expression was detected using western blotting with a specific monoclonal antibody. β-actin was used as loading control. F , MDCK cells were infected with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells incubated in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Following 24 h incubation, the culture media were harvested, and virus titers were determined by plaque assays ( upper panel ). Values are presented as the mean ± SD, n = 3. ∗∗∗ p < 0.001. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. Moreover, viral M1 protein expression was detected in the culture media using western blotting with a specific monoclonal antibody ( lower panel ).

Journal: The Journal of Biological Chemistry

Article Title: Porphyromonas gingivalis gingipain potentially activates influenza A virus infectivity through proteolytic cleavage of viral hemagglutinin

doi: 10.1016/j.jbc.2025.108166

Figure Lengend Snippet: . Influenza virus cleavage activation varies among gingipain-deficient P. gingivalis mutants . A , A/Udorn/72 influenza virus was treated with the culture supernatants (2% v/v) from P. gingivalis ATCC 33277 (wild type) or specific gingipain-deficient mutants of P. gingivalis , KDP 129 (Δ kgp ), KDP133 (Δ rgpA Δ rgpB ), and KDP136 (Δ kgp Δ rgpA Δ rgpB ) at 37 °C for 120 min. HA cleavage activity was assessed using western blotting. B , ( left panel ) generated 1972 H3N2 HA model with potential ( middle panel ) Rgp and ( right panel ) Kgp cleavage sites are shown. HA0 cleavage site is indicated with a dotted box. Potential Rgp cleavage sites are highlighted in red ; potential Kgp cleavage sites are highlighted in green . Magnified view of the HA0 cleavage site is indicated with a solid box . R329 involved in the HA0 cleavage site is shown and distinguished in a wireframe display. C , MDCK cells were inoculated with or without influenza A/Udorn/72 virus at an MOI of 5. After viral adsorption for 30 min, the cells were incubated in either bacterial culture medium, trypsin (1 μg/ml), or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). After 4 h of incubation, cell lysates were harvested and phosphorylated Akt (p-Akt) or total Akt were detected using Western blotting using specific antibodies. β-actin was used as loading control. D , for the indirect IF assay, MDCK cells were inoculated with the virus at an MOI of 0.01. After viral adsorption for 1 h, the cells were incubated for 16 h in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Viral M1 protein was stained with anti-influenza A M1 protein antibody and Alexa Fluor 488 secondary antibody ( green ), and the cell nuclei were stained with Hoechst 33,342 ( blue ). Scale bar, 100 μm. E , MDCK cells were inoculated with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells incubated in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Following 16 h of incubation, cell lysates were harvested, and viral M1 protein expression was detected using western blotting with a specific monoclonal antibody. β-actin was used as loading control. F , MDCK cells were infected with the virus at an MOI of 0.001. After viral adsorption for 30 min, the cells incubated in MEM containing trypsin (1 μg/ml) or P. gingivalis (wild type, KDP129, KDP133, and KDP136) culture supernatant (0.5% v/v). Following 24 h incubation, the culture media were harvested, and virus titers were determined by plaque assays ( upper panel ). Values are presented as the mean ± SD, n = 3. ∗∗∗ p < 0.001. The data were analyzed using one-way ANOVA with Tukey’s post hoc analysis. Moreover, viral M1 protein expression was detected in the culture media using western blotting with a specific monoclonal antibody ( lower panel ).

Article Snippet: Fixed cells were incubated for 1 h with a mouse monoclonal antibody against M1 (Takara Bio) in PBS containing 1% BSA, followed by incubation for 1 h with Alexa Fluor 488 anti-mouse IgG (Thermo Fisher Scientific) in PBS containing 1% BSA and Hoechst 33342 (Thermo Fisher Scientific).

Techniques: Virus, Activation Assay, Activity Assay, Western Blot, Generated, Adsorption, Incubation, Control, Staining, Expressing, Infection

Immunohistochemical staining of DNA mismatch repair (MMR) markers MLH1, PMS2, MSH2, and MSH6. (A–D) Examples of DNA MMR-proficient staining patterns showing intact/retained nuclear staining. (E,F) Examples of MMR-deficient staining patterns showing loss of expression of PMS2 and MLH1, respectively; (magnification ×100).

Journal: Pathology and Oncology Research

Article Title: Molecular classification of endometrial cancer: preliminary experience from a single Portuguese academic center

doi: 10.3389/pore.2024.1611835

Figure Lengend Snippet: Immunohistochemical staining of DNA mismatch repair (MMR) markers MLH1, PMS2, MSH2, and MSH6. (A–D) Examples of DNA MMR-proficient staining patterns showing intact/retained nuclear staining. (E,F) Examples of MMR-deficient staining patterns showing loss of expression of PMS2 and MLH1, respectively; (magnification ×100).

Article Snippet: The specifications of the antibodies used for MSI staining were as follow: Ventana anti-MSH2 (G219-1129), mouse monoclonal primary antibody, 5 mL (∼20 μg/mL); Ventana anti-PMS2 (A16-4), mouse monoclonal antibody, 5 mL (∼1 μg/mL); Ventana anti-MLH1 (M1) mouse monoclonal primary antibody, 5 mL (∼1 μg/mL); Ventana anti-MSH6 (SP93) rabbit monoclonal primary antibody, 5 mL (∼1 μg/mL).

Techniques: Immunohistochemical staining, Staining, Expressing

Journal: eLife

Article Title: Paradoxical imbalance between activated lymphocyte protein synthesis capacity and rapid division rate

doi: 10.7554/eLife.89015

Figure Lengend Snippet:

Article Snippet: Antibody , Anti-mouse rat CD11b Monoclonal Antibody (M1/70), PE-Cyanine7, eBioscience , Invitrogen , Cat#: 25-0112-82 RRID: AB_469588 , FACS (0.75 μl per test).

Techniques: Transgenic Assay, Western Blot, Recombinant, Activation Assay, Virus, DC Protein Assay