Journal: EBioMedicine

Article Title: Rapid detection of bacterial infection using a novel single-tube, four-colour flow cytometric method: Comparison with PCT and CRP

doi: 10.1016/j.ebiom.2021.103724

Figure Lengend Snippet: A schematic diagram on how to calculate the FCBI-index value of the patient with microbiologically confirmed Streptococcus pneumoniae pneumonia using the novel FCBI-index method. (a) The incubation of the whole blood sample with the receptor-specific antibodies, red blood cell lysis, and flow cytometry run were carried out one after another in the same test tube. (b) During the flow cytometry run, the leukocyte population within gate R1 was first gated out from the side scatter (SSC)/MHCI bivariate histogram, after which gates R2 (red) and R3 (blue) were set around neutrophil and lymphocyte populations, respectively, in the SSC/CD64 bivariate histogram containing leukocytes inside gate R1. The stop count of 1000 monocytes inside the monocyte gate (black/R4) was used, leading to the collection of a total of 5000–20000 leukocytes. (c) For the purpose of data analysis, three additional bivariate histograms, namely SSC/CD35, SSC/CD64, and SSC/CD329 were made, showing mean fluorescence intensities (MFI, which correlate with the number of receptors on the cell surface) of gated neutrophil (red) and lymphocyte (blue) populations. In the SSC/CD35 histogram, B-lymphocytes expressing CD35 were left outside the lymphocyte gate. (d) The actual FCBI-index value was calculated by substituting the obtained receptor-specific MFI data from neutrophil and monocyte populations into the bacterial infection algorithm. A more detailed step-by-step description of the development of the FCBI-index method is presented in the method section and Supplementary Figs. 1–5. 1.54 × gCMF-HBSS: 1.54-fold calcium- and magnesium-free HBSS -buffer supplemented with 1.54 mg/mL gelatin.

Article Snippet: Fluorescence-conjugated receptor-specific monoclonal antibodies (test kit): Phycoerythrin (PE)-conjugated anti-human CD35 (Clone E11) was purchased from Ancell (ANC-184-050), PerCP-Vio700-conjugated anti-human CD64 (Clone 10.1.1) was purchased from Miltenyi Biotec (130-101-422), fluorescein isothiocyanate (FITC)-conjugated anti-human CD329 (Clone 191240) was purchased from R&D systems (FAB1139F) and AF647-conjugated anti-human MHC class I molecule (Clone W6/32) was purchased from R&D systems (FAB7098R). (Supplementary Table 5).

Techniques: Incubation, Red Blood Cell Lysis, Flow Cytometry, Fluorescence, Expressing, Infection

Journal: STAR Protocols

Article Title: Mouse splenocyte enrichment strategies via negative selection for broadened single-cell transcriptomics

doi: 10.1016/j.xpro.2022.101402

Figure Lengend Snippet: Flow cytometry enriched antibody cocktail (22 μL) panel for analyzing rarer granulocyte and myeloid cells in mouse spleen for downstream scRNA-seq

Article Snippet: FcεRIα Antibody, anti-mouse, PE-Vio® 615, REAfinityTM Clone REA1079 , Miltenyi Biotec , Cat# 130-118-899; RRID: AB_2801723.

Techniques: Flow Cytometry, Marker

Journal: STAR Protocols

Article Title: Mouse splenocyte enrichment strategies via negative selection for broadened single-cell transcriptomics

doi: 10.1016/j.xpro.2022.101402

Figure Lengend Snippet:

Article Snippet: FcεRIα Antibody, anti-mouse, PE-Vio® 615, REAfinityTM Clone REA1079 , Miltenyi Biotec , Cat# 130-118-899; RRID: AB_2801723.

Techniques: Recombinant, Sterility, Saline, Extraction, Blocking Assay, Software, Solvent, Sequencing, RNA Sequencing, Transferring, Aerosol, Irradiation, Inverted Microscopy, Flow Cytometry, Fluorescence

Journal: Frontiers in Immunology

Article Title: Unveiling spatial complexity in solid tumor immune microenvironments through multiplexed imaging

doi: 10.3389/fimmu.2024.1383932

Figure Lengend Snippet: Immunophenotyping panel for multiplexed tissue imaging of cancer.

Article Snippet: CD64 , REA987 , 50 , 130-116-195 , FITC , Miltenyi Biotec.

Techniques: Imaging

Journal: Inflammation

Article Title: FTO-dependent m 6 A Demethylation Activates Mxd1 To Enhance Vitamin D-induced Suppression of Neuroinflammation Via PTEN/AKT/PGC-1α Signaling Pathways in Microglia

doi: 10.1007/s10753-026-02450-5

Figure Lengend Snippet: VitD promotes M2 microglial polarization in LPS-stimulated BV-2 cells and mice. A-B CCK-8 assays of BV-2 cell viability following treatment with various concentrations of VitD, with or without LPS stimulation. Data are representative of three independent experiments and shown as mean ± SD. C Western blot analysis of CD16, CD18 (M1 markers), CD206 and ARG1 (M2 markers) in LPS- or LPS + VitD (VitD)-treated BV-2 cells and primary mouse microglia. Data are representative of three independent experiments and shown as mean ± SD. n = 3 ** P < 0.01. One-way ANOVA and Tukey’s test. D Immunofluorescence analysis of the levels of CD16 and CD206 in LPS- or LPS + VitD (VitD)-treated BV-2 cells. Scale bar: 50 μm. Right panel: Quantification of CD16 and CD206 IF intensity. Six regions were randomly selected for each group, and the IF intensities of CD16 and CD206 were quantified using the ImageJ software. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. Red arrows indicate CD16-positive microglia and green arrows indicate CD206-positive microglia. E ELISA analysis of supernatant levels of TNF-α, IL1β, IL-6, IL-4 and IL-10 in LPS- or LPS + VitD (VitD)-treated BV-2 cells. n = 6. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. F Immunofluorescence analysis of the levels of CD16 and CD206 in cerebral cortex and hippocampal CA1 area of LPS- or LPS + VitD(VitD)-treated mice. Scale bar: 20 μm. n = 6 mice per group. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. Red arrows indicate CD16-positive microglia and green arrows indicate CD206-positive microglia.

Article Snippet: For immunofluorescence analysis, brain sections were cut at 7 μm, washed with 0.1 M PBS, permeabilized with 0.3% (v/v) Triton X-100-PBS, blocked with 10% (v/v) donkey serum for 1 h, and then incubated with primary antibodies against CD16 (1:200, ProteinTech, Wuhan, China), CD206 (1:200, RecordBio) at 4 °C overnight.

Techniques: CCK-8 Assay, Western Blot, Immunofluorescence, Software, Enzyme-linked Immunosorbent Assay

Journal: Inflammation

Article Title: FTO-dependent m 6 A Demethylation Activates Mxd1 To Enhance Vitamin D-induced Suppression of Neuroinflammation Via PTEN/AKT/PGC-1α Signaling Pathways in Microglia

doi: 10.1007/s10753-026-02450-5

Figure Lengend Snippet: Mxd1 is essential for VitD-induced microglial M2 polarization in LPS-stimulated conditions. A Immunohistochemistry analysis of Mxd1 expression in cerebral cortex and hippocampal CA1 area hippocampal CA1 area of mice receiving LPS or LPS + VitD (VitD) treatment. Scale bar: 20 μm. Quantification of Mxd1-positive area is shown in the right panel. n = 6 mice per group. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. B Western blot analysis of the protein levels of Mxd1 and c-MYC in BV-2 cells treated with LPS or LPS + VitD (VitD). Data are representative of three independent experiments and shown as mean ± SD. n = 3. ** P < 0.01. One-way ANOVA and Tukey’s test. C Immunofluorescence analysis of the levels of Mxd1 in in BV-2 cells treated with LPS or LPS + VitD (VitD). Scale bar: 100 μm. Right panel: Quantification of Mxd1 IF intensity. Six regions were randomly selected for each group, and the IF intensity of Mxd1 was quantified using the ImageJ software. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. D Western blot analysis of the protein levels of CD16, CD18, CD206, ARG1 and Mxd1 in LPS or LPS + VitD (VitD)-treated BV-2 cells with either negative control siRNA (siNC), or Mxd1 siRNA (siMxd1). Data are representative of three independent experiments and shown as mean ± SD. n = 3. ns: not significant; * P < 0.05, ** P < 0.01. Two-way ANOVA and Tukey’s test. E ELISA analysis of supernatant levels of TNF-α, IL1β, IL-6, IL-4 and IL-10 in LPS or VitD-treated BV-2 cells with siNC or siMxd1. Data are representative of three independent experiments and shown as mean ± SD. n = 3 ** P < 0.01. Two-way ANOVA and Tukey’s test.

Article Snippet: For immunofluorescence analysis, brain sections were cut at 7 μm, washed with 0.1 M PBS, permeabilized with 0.3% (v/v) Triton X-100-PBS, blocked with 10% (v/v) donkey serum for 1 h, and then incubated with primary antibodies against CD16 (1:200, ProteinTech, Wuhan, China), CD206 (1:200, RecordBio) at 4 °C overnight.

Techniques: Immunohistochemistry, Expressing, Western Blot, Immunofluorescence, Software, Negative Control, Enzyme-linked Immunosorbent Assay

Journal: Inflammation

Article Title: FTO-dependent m 6 A Demethylation Activates Mxd1 To Enhance Vitamin D-induced Suppression of Neuroinflammation Via PTEN/AKT/PGC-1α Signaling Pathways in Microglia

doi: 10.1007/s10753-026-02450-5

Figure Lengend Snippet: Effect of FTO on VitD-induced microglial M2 polarization. A Global m 6 A RNA methylation analysis of total mRNAs in LPS- and LPS + VitD(VitD)-treated BV-2 cells. Data are representative of three independent experiments and shown as mean ± SD. * P < 0.05; ** P < 0.01. One-way ANOVA and Tukey’s test. B Western blot of m 6 A methylation regulator (METTL3, METTL14, WTAP, ALKBH5, and FTO) in the same treatment conditions. Data are representative of three independent experiments and shown as mean ± SD. ns: not significant; ** P < 0.01. One-way ANOVA and Tukey’s test. C m 6 A quantification in BV-2 cells transfected with negative control siRNA (siNC) or FTO siRNA (siFTO) and treated with LPS or LPS + VitD (VitD). Data are representative of three independent experiments and shown as mean ± SD. * P < 0.05; ** P < 0.01. Two-way ANOVA and Tukey’s test. D Western blot of CD16, CD18, CD206, ARG1 and Mxd1 in the same treatment conditions. Data are representative of three independent experiments and shown as mean ± SD. ns: not significant; * P < 0.05; ** P < 0.01. Two-way ANOVA and Tukey’s test. E ELISA of cytokine levels in corresponding supernatants. Data are representative of three independent experiments and shown as mean ± SD. ns: not significant; ** P < 0.01. Two-way ANOVA and Tukey’s test. F Immunohistochemistry for Iba-1 in the cerebral cortex and hippocampal CA1 area of mice treated with vehicle, LPS, LPS + VitD, and LPS + VitD + FB23-2. Scale bar: 20 μm. Quantification data are shown in the right panel. n = 6 mice per group. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test.

Article Snippet: For immunofluorescence analysis, brain sections were cut at 7 μm, washed with 0.1 M PBS, permeabilized with 0.3% (v/v) Triton X-100-PBS, blocked with 10% (v/v) donkey serum for 1 h, and then incubated with primary antibodies against CD16 (1:200, ProteinTech, Wuhan, China), CD206 (1:200, RecordBio) at 4 °C overnight.

Techniques: Methylation, Western Blot, Transfection, Negative Control, Enzyme-linked Immunosorbent Assay, Immunohistochemistry

Journal: Inflammation

Article Title: FTO-dependent m 6 A Demethylation Activates Mxd1 To Enhance Vitamin D-induced Suppression of Neuroinflammation Via PTEN/AKT/PGC-1α Signaling Pathways in Microglia

doi: 10.1007/s10753-026-02450-5

Figure Lengend Snippet: PGC-1α is required for VitD-induced M2 microglial polarization. A Immunofluorescence analysis of PGC-1α nuclear localization in LPS- or LPS + VitD-treated BV-2 cells. Scale bar: 100 μm. Right panel: Quantification of PGC-1α IF intensity. Six regions were randomly selected for each group, and the IF intensity of PGC-1α was quantified using the ImageJ software. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test. B Western blot analysis of CD16, CD18, CD206 and ARG1 in LPS- or LPS + VitD(VitD)-treated BV-2 cells with vehicle or SR-18,292. Data are representative of three independent experiments and shown as mean ± SD. ns: not significant; ** P < 0.01. Two-way ANOVA and Tukey’s test. C ELISA quantification of TNF-α, IL1β, IL-6, IL-4 and IL-10 in culture supernatants from the same experimental groups. Data are representative of three independent experiments and shown as mean ± SD. ns: not significant; ** P < 0.01. Two-way ANOVA and Tukey’s test. D Immunohistochemical staining and quantification of Iba-1-positive cells in cerebral cortex and hippocampal CA1 area of LPS- or VitD-treated mice with vehicle or SR-18,292, and the quantification of Iba-1 positive cells in each group was shown in the low panel. Scale bar: 20 μm. n = 6 mice per group. Data are shown as mean ± SD. ** P < 0.01. One-way ANOVA and Tukey’s test.

Article Snippet: For immunofluorescence analysis, brain sections were cut at 7 μm, washed with 0.1 M PBS, permeabilized with 0.3% (v/v) Triton X-100-PBS, blocked with 10% (v/v) donkey serum for 1 h, and then incubated with primary antibodies against CD16 (1:200, ProteinTech, Wuhan, China), CD206 (1:200, RecordBio) at 4 °C overnight.

Techniques: Immunofluorescence, Software, Western Blot, Enzyme-linked Immunosorbent Assay, Immunohistochemical staining, Staining