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Santa Cruz Biotechnology pstat1 py701 4a

Ruxolitinib blocks LPS and IFNγ-induced Janus kinase signaling. (A) Human macrophages were pre-treated with increasing concentrations of ruxolitinib for 15 min and subsequently stimulated with IFNγ (100 ng/ml) or LPS (100 ng/ml) for 3 h. Whole-cell lysate western blots showing effect of ruxolitinib on STAT1 and STAT2 phosphorylation by each stimulus. Blot is representative of two replicates from separate human donors. (B and C) Quantification of pSTAT2 and (C) <t>pSTAT1</t> band intensities in A. Source data are available for this figure: .

Pstat1 Py701 4a, supplied by Santa Cruz Biotechnology, used in various techniques. Bioz Stars score: 94/100, based on 319 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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pstat1 py701 4a - by Bioz Stars, 2026-08

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1) Product Images from "IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself"

Article Title: IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself

Journal: The Journal of Experimental Medicine

doi: 10.1084/jem.20250976

Figure Legend Snippet: Ruxolitinib blocks LPS and IFNγ-induced Janus kinase signaling. (A) Human macrophages were pre-treated with increasing concentrations of ruxolitinib for 15 min and subsequently stimulated with IFNγ (100 ng/ml) or LPS (100 ng/ml) for 3 h. Whole-cell lysate western blots showing effect of ruxolitinib on STAT1 and STAT2 phosphorylation by each stimulus. Blot is representative of two replicates from separate human donors. (B and C) Quantification of pSTAT2 and (C) pSTAT1 band intensities in A. Source data are available for this figure: .

Techniques Used: Western Blot, Phospho-proteomics

IFNγ induces long-lasting transcription factor activity and chromatin accessibility after washout. Macrophages were treated with LPS, IFNγ, and LPS in the presence of ruxolitinib for 8 h, as in . Cells were washed and cultured for an additional 88 h. ATACseq was performed after 8 h of stimulation and 4 days after washout. (A) Heatmap of Z-scored reads within ATAC peaks induced by either LPS or IFNγ (L2FC > 2, FDR < 0.01). Clusters were generated by unsupervised k-means clustering. Each column represents a biological replicate from the same human donor. (B) Top enriched motifs in clusters from A. (C) Boxplot quantifying log2 cpm of reads within IFNγ-induced ATAC peaks before and after cytokine washout. (D) Boxplot quantifying log2 cpm of reads within LPS-induced ATAC peaks before and after cytokine washout. (E) Boxplot quantifying log2 cpm of reads within ATAC peaks induced by both IFNγ and LPS (L2FC > 2, FDR < 0.01 for each) peaks before and after cytokine washout. (F) Barplot quantifying percent of transcription factor-bound motifs within STAT1 and IRF1 (IFNγ) and IRF1 and NF-κB (LPS) within induced ATAC peaks in C and D for unstimulated, IFNγ/LPS-stimulated macrophages, and stimulated macrophages 4 days after washout. Motif binding predicted using TOBIAS ATACseq footprinting analysis. Results are average of two technical replicates from a single subject; error bars display standard deviation. (G) Human macrophages were stimulated with IFNγ (100 ng/ml), LPS (100 ng/ml), or IFNβ (10 ng/ml) for 8 h, washed, and then cultured for an additional 66 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 was performed at the indicated time points. Blot is representative of three replicates from two separate human donors. All box/whisker plots indicate interquartile range and 1.5× interquartile range. Statistical tests were determined by paired Wilcoxon test. ****P < 0.0001. Source data are available for this figure: .

Figure Legend Snippet: IFNγ induces long-lasting transcription factor activity and chromatin accessibility after washout. Macrophages were treated with LPS, IFNγ, and LPS in the presence of ruxolitinib for 8 h, as in . Cells were washed and cultured for an additional 88 h. ATACseq was performed after 8 h of stimulation and 4 days after washout. (A) Heatmap of Z-scored reads within ATAC peaks induced by either LPS or IFNγ (L2FC > 2, FDR < 0.01). Clusters were generated by unsupervised k-means clustering. Each column represents a biological replicate from the same human donor. (B) Top enriched motifs in clusters from A. (C) Boxplot quantifying log2 cpm of reads within IFNγ-induced ATAC peaks before and after cytokine washout. (D) Boxplot quantifying log2 cpm of reads within LPS-induced ATAC peaks before and after cytokine washout. (E) Boxplot quantifying log2 cpm of reads within ATAC peaks induced by both IFNγ and LPS (L2FC > 2, FDR < 0.01 for each) peaks before and after cytokine washout. (F) Barplot quantifying percent of transcription factor-bound motifs within STAT1 and IRF1 (IFNγ) and IRF1 and NF-κB (LPS) within induced ATAC peaks in C and D for unstimulated, IFNγ/LPS-stimulated macrophages, and stimulated macrophages 4 days after washout. Motif binding predicted using TOBIAS ATACseq footprinting analysis. Results are average of two technical replicates from a single subject; error bars display standard deviation. (G) Human macrophages were stimulated with IFNγ (100 ng/ml), LPS (100 ng/ml), or IFNβ (10 ng/ml) for 8 h, washed, and then cultured for an additional 66 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 was performed at the indicated time points. Blot is representative of three replicates from two separate human donors. All box/whisker plots indicate interquartile range and 1.5× interquartile range. Statistical tests were determined by paired Wilcoxon test. ****P < 0.0001. Source data are available for this figure: .

Techniques Used: Activity Assay, Cell Culture, Generated, Binding Assay, Footprinting, Standard Deviation, Western Blot, Whisker Assay

Cell surface–bound IFNγ mediates persistent signaling regardless of cytokine manufacturer and can be degraded by trypsinization. (A) Quantification of pSTAT1 intensity normalized to 3H IFNγ in . (B) Human macrophages were treated with Escherichia coli sourced IFNγ purchased from PeproTech and mammalian-sourced IFNγ purchased from Sigma-Aldrich and ACRO. Cells were treated at 100 ng/ml for 8 h, washed, and cultured for an additional 48 h in regular media prior to collection. Cells were collected for immunoblot at the indicated times. Representative blot of duplicates from one human subject. (C) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in B. (D) Human A549 airway epithelial cells were stimulated with 100 ng/ml IFNγ, washed, and cultured for an additional 72 h. Cells were collected for immunoblot at the indicated timepoints. Representative blot of two replicates. (E) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in D. (F) Human macrophages were treated with 100 ng/ml IFNγ for 8 h, washed, and lifted by scraping after incubation with either PBS, 0.5 mM EDTA in PBS, or trypsin. Cells were replated and cultured for an additional 24 h in regular media. Cells were collected for immunoblot at the indicated times. (G) Quantification of pSTAT1 band intensity normalized to GAPDH for each condition in F. Statistical tests were determined by single-tailed t test. *P < 0.05; **P < 0.01. Source data are available for this figure: .

Figure Legend Snippet: Cell surface–bound IFNγ mediates persistent signaling regardless of cytokine manufacturer and can be degraded by trypsinization. (A) Quantification of pSTAT1 intensity normalized to 3H IFNγ in . (B) Human macrophages were treated with Escherichia coli sourced IFNγ purchased from PeproTech and mammalian-sourced IFNγ purchased from Sigma-Aldrich and ACRO. Cells were treated at 100 ng/ml for 8 h, washed, and cultured for an additional 48 h in regular media prior to collection. Cells were collected for immunoblot at the indicated times. Representative blot of duplicates from one human subject. (C) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in B. (D) Human A549 airway epithelial cells were stimulated with 100 ng/ml IFNγ, washed, and cultured for an additional 72 h. Cells were collected for immunoblot at the indicated timepoints. Representative blot of two replicates. (E) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in D. (F) Human macrophages were treated with 100 ng/ml IFNγ for 8 h, washed, and lifted by scraping after incubation with either PBS, 0.5 mM EDTA in PBS, or trypsin. Cells were replated and cultured for an additional 24 h in regular media. Cells were collected for immunoblot at the indicated times. (G) Quantification of pSTAT1 band intensity normalized to GAPDH for each condition in F. Statistical tests were determined by single-tailed t test. *P < 0.05; **P < 0.01. Source data are available for this figure: .

Techniques Used: Cell Culture, Western Blot, Incubation

Cell surface–bound IFNγ mediates persistent JAK/STAT signaling even after cytokine washout. (A) Human macrophages were stimulated with IFNγ (100 ng/ml) for 8 h, washed, and then cultured in regular media or media containing ruxolitinib (1 µM) or increasing concentrations of anti-IFNγ neutralizing antibody for an additional 28 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 and IRF1 was performed at indicated time points. Representative blot of duplicates from two separate subjects. (B) Human macrophages were stimulated with 100 ng/ml IFNγ for 3 h, washed, and then cultured in either ruxolitinib (1 µM), anti-IFNγ neutralizing antibody (10 µg/ml), or isotype control antibody (10 µg/ml) for 2 h. Samples were collected at the indicated times for immunoblot. Representative blot of duplicates from two separate subjects. (C) Quantification of pSTAT1 band intensities from B. (D) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured for an additional 88 h in regular media. Supernatants from stimulated macrophages were collected after the 8-h stimulation and 88 h after washout. This supernatant was used to stimulate fresh macrophages for 1 h in the presence/absence of ruxolitinib (1 µM) or anti-IFNγ neutralizing antibody (10 µg/ml). As a control, fresh macrophages were stimulated with media supplemented with 1 ng/ml IFNγ for 1 h. Representative blot of duplicates from two separate subjects. (E) Macrophages were left in regular media or pre-treated with 10 µg/ml CHX for 15 min and stimulated with 100 ng/ml IFNγ for 3 h. Treated macrophages were washed and subsequently cultured for 2 h in regular media, media supplemented with 10 µg/ml CHX, or anti-IFNγ neutralizing antibody (10 µg/ml) and collected for immunoblot. Duplicates from one subject are shown. (F) Quantification of pSTAT1 band intensities in E normalized to band intensity of macrophages treated with IFNγ for 3 h. (G) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured in regular media or media supplemented with 1 µM ruxolitinib for 16 h. After 16 h, cells were washed again and cultured in regular media for an additional 24 h. Cells were collected for immunoblot at indicated times. Representative blot of four replicates from two subjects. (H) Quantification of pSTAT1 band intensities in G normalized to band intensity of macrophages treated with IFNγ for 3 h. Statistical tests were determined by a single-tailed t test. *P < 0.05, **P < 0.01, and ***P < 0.001. Source data are available for this figure: .

Figure Legend Snippet: Cell surface–bound IFNγ mediates persistent JAK/STAT signaling even after cytokine washout. (A) Human macrophages were stimulated with IFNγ (100 ng/ml) for 8 h, washed, and then cultured in regular media or media containing ruxolitinib (1 µM) or increasing concentrations of anti-IFNγ neutralizing antibody for an additional 28 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 and IRF1 was performed at indicated time points. Representative blot of duplicates from two separate subjects. (B) Human macrophages were stimulated with 100 ng/ml IFNγ for 3 h, washed, and then cultured in either ruxolitinib (1 µM), anti-IFNγ neutralizing antibody (10 µg/ml), or isotype control antibody (10 µg/ml) for 2 h. Samples were collected at the indicated times for immunoblot. Representative blot of duplicates from two separate subjects. (C) Quantification of pSTAT1 band intensities from B. (D) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured for an additional 88 h in regular media. Supernatants from stimulated macrophages were collected after the 8-h stimulation and 88 h after washout. This supernatant was used to stimulate fresh macrophages for 1 h in the presence/absence of ruxolitinib (1 µM) or anti-IFNγ neutralizing antibody (10 µg/ml). As a control, fresh macrophages were stimulated with media supplemented with 1 ng/ml IFNγ for 1 h. Representative blot of duplicates from two separate subjects. (E) Macrophages were left in regular media or pre-treated with 10 µg/ml CHX for 15 min and stimulated with 100 ng/ml IFNγ for 3 h. Treated macrophages were washed and subsequently cultured for 2 h in regular media, media supplemented with 10 µg/ml CHX, or anti-IFNγ neutralizing antibody (10 µg/ml) and collected for immunoblot. Duplicates from one subject are shown. (F) Quantification of pSTAT1 band intensities in E normalized to band intensity of macrophages treated with IFNγ for 3 h. (G) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured in regular media or media supplemented with 1 µM ruxolitinib for 16 h. After 16 h, cells were washed again and cultured in regular media for an additional 24 h. Cells were collected for immunoblot at indicated times. Representative blot of four replicates from two subjects. (H) Quantification of pSTAT1 band intensities in G normalized to band intensity of macrophages treated with IFNγ for 3 h. Statistical tests were determined by a single-tailed t test. *P < 0.05, **P < 0.01, and ***P < 0.001. Source data are available for this figure: .

Techniques Used: Cell Culture, Western Blot, Control

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Journal: The Journal of Experimental Medicine

Article Title: IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself

doi: 10.1084/jem.20250976

Figure Lengend Snippet: Ruxolitinib blocks LPS and IFNγ-induced Janus kinase signaling. (A) Human macrophages were pre-treated with increasing concentrations of ruxolitinib for 15 min and subsequently stimulated with IFNγ (100 ng/ml) or LPS (100 ng/ml) for 3 h. Whole-cell lysate western blots showing effect of ruxolitinib on STAT1 and STAT2 phosphorylation by each stimulus. Blot is representative of two replicates from separate human donors. (B and C) Quantification of pSTAT2 and (C) pSTAT1 band intensities in A. Source data are available for this figure: .

Article Snippet: The following primary antibodies were used: pSTAT1 pY701.4A (#136229; Santa Cruz Biotechnology, RRID:AB_2019074) diluted at 1:10,000, IRF1 D5E4 (#8478; Cell Signaling Technologies, RRID:AB_10949108) diluted at 1:1,000, β-tubulin TUB2.1 (T5201; Sigma-Aldrich, RRID:AB_609915) diluted at 1:10,000, and GAPDH H-12 (#166574; Santa Cruz Biotechnology, RRID:AB_2107296) diluted at 1:10,000.

Techniques: Western Blot, Phospho-proteomics

Journal: The Journal of Experimental Medicine

Article Title: IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself

doi: 10.1084/jem.20250976

Figure Lengend Snippet: IFNγ induces long-lasting transcription factor activity and chromatin accessibility after washout. Macrophages were treated with LPS, IFNγ, and LPS in the presence of ruxolitinib for 8 h, as in . Cells were washed and cultured for an additional 88 h. ATACseq was performed after 8 h of stimulation and 4 days after washout. (A) Heatmap of Z-scored reads within ATAC peaks induced by either LPS or IFNγ (L2FC > 2, FDR < 0.01). Clusters were generated by unsupervised k-means clustering. Each column represents a biological replicate from the same human donor. (B) Top enriched motifs in clusters from A. (C) Boxplot quantifying log2 cpm of reads within IFNγ-induced ATAC peaks before and after cytokine washout. (D) Boxplot quantifying log2 cpm of reads within LPS-induced ATAC peaks before and after cytokine washout. (E) Boxplot quantifying log2 cpm of reads within ATAC peaks induced by both IFNγ and LPS (L2FC > 2, FDR < 0.01 for each) peaks before and after cytokine washout. (F) Barplot quantifying percent of transcription factor-bound motifs within STAT1 and IRF1 (IFNγ) and IRF1 and NF-κB (LPS) within induced ATAC peaks in C and D for unstimulated, IFNγ/LPS-stimulated macrophages, and stimulated macrophages 4 days after washout. Motif binding predicted using TOBIAS ATACseq footprinting analysis. Results are average of two technical replicates from a single subject; error bars display standard deviation. (G) Human macrophages were stimulated with IFNγ (100 ng/ml), LPS (100 ng/ml), or IFNβ (10 ng/ml) for 8 h, washed, and then cultured for an additional 66 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 was performed at the indicated time points. Blot is representative of three replicates from two separate human donors. All box/whisker plots indicate interquartile range and 1.5× interquartile range. Statistical tests were determined by paired Wilcoxon test. ****P < 0.0001. Source data are available for this figure: .

Techniques: Activity Assay, Cell Culture, Generated, Binding Assay, Footprinting, Standard Deviation, Western Blot, Whisker Assay

Journal: The Journal of Experimental Medicine

Article Title: IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself

doi: 10.1084/jem.20250976

Figure Lengend Snippet: Cell surface–bound IFNγ mediates persistent signaling regardless of cytokine manufacturer and can be degraded by trypsinization. (A) Quantification of pSTAT1 intensity normalized to 3H IFNγ in . (B) Human macrophages were treated with Escherichia coli sourced IFNγ purchased from PeproTech and mammalian-sourced IFNγ purchased from Sigma-Aldrich and ACRO. Cells were treated at 100 ng/ml for 8 h, washed, and cultured for an additional 48 h in regular media prior to collection. Cells were collected for immunoblot at the indicated times. Representative blot of duplicates from one human subject. (C) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in B. (D) Human A549 airway epithelial cells were stimulated with 100 ng/ml IFNγ, washed, and cultured for an additional 72 h. Cells were collected for immunoblot at the indicated timepoints. Representative blot of two replicates. (E) Quantification of pSTAT1 band intensity normalized to tubulin at each time point in D. (F) Human macrophages were treated with 100 ng/ml IFNγ for 8 h, washed, and lifted by scraping after incubation with either PBS, 0.5 mM EDTA in PBS, or trypsin. Cells were replated and cultured for an additional 24 h in regular media. Cells were collected for immunoblot at the indicated times. (G) Quantification of pSTAT1 band intensity normalized to GAPDH for each condition in F. Statistical tests were determined by single-tailed t test. *P < 0.05; **P < 0.01. Source data are available for this figure: .

Techniques: Cell Culture, Western Blot, Incubation

Journal: The Journal of Experimental Medicine

Article Title: IFNγ-induced memory in human macrophages is sustained by the durability of cytokine signaling itself

doi: 10.1084/jem.20250976

Figure Lengend Snippet: Cell surface–bound IFNγ mediates persistent JAK/STAT signaling even after cytokine washout. (A) Human macrophages were stimulated with IFNγ (100 ng/ml) for 8 h, washed, and then cultured in regular media or media containing ruxolitinib (1 µM) or increasing concentrations of anti-IFNγ neutralizing antibody for an additional 28 h. Cells were collected, and whole cell western blotting for phosphorylated STAT1 and IRF1 was performed at indicated time points. Representative blot of duplicates from two separate subjects. (B) Human macrophages were stimulated with 100 ng/ml IFNγ for 3 h, washed, and then cultured in either ruxolitinib (1 µM), anti-IFNγ neutralizing antibody (10 µg/ml), or isotype control antibody (10 µg/ml) for 2 h. Samples were collected at the indicated times for immunoblot. Representative blot of duplicates from two separate subjects. (C) Quantification of pSTAT1 band intensities from B. (D) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured for an additional 88 h in regular media. Supernatants from stimulated macrophages were collected after the 8-h stimulation and 88 h after washout. This supernatant was used to stimulate fresh macrophages for 1 h in the presence/absence of ruxolitinib (1 µM) or anti-IFNγ neutralizing antibody (10 µg/ml). As a control, fresh macrophages were stimulated with media supplemented with 1 ng/ml IFNγ for 1 h. Representative blot of duplicates from two separate subjects. (E) Macrophages were left in regular media or pre-treated with 10 µg/ml CHX for 15 min and stimulated with 100 ng/ml IFNγ for 3 h. Treated macrophages were washed and subsequently cultured for 2 h in regular media, media supplemented with 10 µg/ml CHX, or anti-IFNγ neutralizing antibody (10 µg/ml) and collected for immunoblot. Duplicates from one subject are shown. (F) Quantification of pSTAT1 band intensities in E normalized to band intensity of macrophages treated with IFNγ for 3 h. (G) Human macrophages were stimulated with 100 ng/ml IFNγ for 8 h, washed, and cultured in regular media or media supplemented with 1 µM ruxolitinib for 16 h. After 16 h, cells were washed again and cultured in regular media for an additional 24 h. Cells were collected for immunoblot at indicated times. Representative blot of four replicates from two subjects. (H) Quantification of pSTAT1 band intensities in G normalized to band intensity of macrophages treated with IFNγ for 3 h. Statistical tests were determined by a single-tailed t test. *P < 0.05, **P < 0.01, and ***P < 0.001. Source data are available for this figure: .

Techniques: Cell Culture, Western Blot, Control

NK cells from infected (open histograms) and uninfected (shaded histograms) mice were analyzed for intracellular pSTAT1 following adoptive transfer (A) or co-culture (B). Adoptive transfer was as described in . For in vitro infection, CD45.2 + splenocytes from IFNAR +/− or IFNAR −/− mice were combined with CD45.1 + B6 splenocytes at 1∶1 ratio, then infected with flu. NK cells (NK1.1 + CD3 − ) from infected (open histograms) and uninfected (shaded histograms) samples were analyzed for intracellular pSTAT1. Values represent the percentages of pSTAT1 + NK cells. Data are representative of three independent experiments with 2–4 (A) or 1–3 (B) mice per group.

Journal: PLoS ONE

Article Title: Activation Mechanisms of Natural Killer Cells during Influenza Virus Infection

doi: 10.1371/journal.pone.0051858

Figure Lengend Snippet: NK cells from infected (open histograms) and uninfected (shaded histograms) mice were analyzed for intracellular pSTAT1 following adoptive transfer (A) or co-culture (B). Adoptive transfer was as described in . For in vitro infection, CD45.2 + splenocytes from IFNAR +/− or IFNAR −/− mice were combined with CD45.1 + B6 splenocytes at 1∶1 ratio, then infected with flu. NK cells (NK1.1 + CD3 − ) from infected (open histograms) and uninfected (shaded histograms) samples were analyzed for intracellular pSTAT1. Values represent the percentages of pSTAT1 + NK cells. Data are representative of three independent experiments with 2–4 (A) or 1–3 (B) mice per group.

Article Snippet: Antibodies against the following proteins were purchased as indicated: NK1.1 (PK136), CD3 (145-2C11), CD19 (1D3), IFN-γ (XMG1.2), granzyme B (GB11), CD107a (1D4B), CD69 (H1.2F3), pSTAT1 pY701 (4a) and pSTAT4 pY693 (38/p-Stat4) from BD Biosciences, CD49b (DX5) from eBiosciences, and CD45.2 (104) from Biolegend.

Techniques: Infection, Adoptive Transfer Assay, Co-Culture Assay, In Vitro

One donor was employed for barcoding all nine populations in each of six matrixes (three with unstimulated samples and three stimulated for pSTAT1, pSTAT3, or pSTAT5). (A) Mean of percent of positive cells and SD were calculated for each position in a matrix (pi; p1 to p9) among all matrixes with unstimulated samples (total of nine values for each parameter; N) or stimulated samples. The range of variability was calculated as average of % of positive cells of all barcoded samples ± 2SD. The ratio of variability was defined as the ratio between the average of barcoded samples in every position in a matrix and the average of not-barcoded samples; values were considered as acceptable if between 0.8 and 1.2. (B) Percent of positive barcoded cells were compared to those from matched not-barcoded (w/o FCB) samples by Pearson analysis. (C) Ranges and ratios of variability were calculated for each population, and values outside the ranges (< −2SD or > +2SD; or < 0.8 or > 1.2) were highlighted in black.

Journal: Journal of immunological methods

Article Title: High Throughput pSTAT Signaling Profiling by Fluorescent Cell Barcoding and Computational Analysis

doi: 10.1016/j.jim.2019.112667

Figure Lengend Snippet: One donor was employed for barcoding all nine populations in each of six matrixes (three with unstimulated samples and three stimulated for pSTAT1, pSTAT3, or pSTAT5). (A) Mean of percent of positive cells and SD were calculated for each position in a matrix (pi; p1 to p9) among all matrixes with unstimulated samples (total of nine values for each parameter; N) or stimulated samples. The range of variability was calculated as average of % of positive cells of all barcoded samples ± 2SD. The ratio of variability was defined as the ratio between the average of barcoded samples in every position in a matrix and the average of not-barcoded samples; values were considered as acceptable if between 0.8 and 1.2. (B) Percent of positive barcoded cells were compared to those from matched not-barcoded (w/o FCB) samples by Pearson analysis. (C) Ranges and ratios of variability were calculated for each population, and values outside the ranges (< −2SD or > +2SD; or < 0.8 or > 1.2) were highlighted in black.

Article Snippet: Antibodies used for phosphoproteins were: pSTAT1(pY701)-Alexa Fluor 647 (clone 4a), pSTAT3(pY705)- Alexa Fluor 647 (clone 4/P-STAT3), and pSTAT5(pY694)- Alexa Fluor 647 (clone 47/Stat5 pY694) (BD Biosciences).

Techniques:

Journal: Journal of immunological methods

Article Title: High Throughput pSTAT Signaling Profiling by Fluorescent Cell Barcoding and Computational Analysis

doi: 10.1016/j.jim.2019.112667

Figure Lengend Snippet: One donor was employed for barcoding all nine populations in each of six matrixes (three with unstimulated samples and three stimulated for pSTAT1, pSTAT3, or pSTAT5). (A) Mean of MFIs and SD were calculated for each position in a matrix (pi; p1 to p9) among all matrixes with unstimulated samples (total of nine values for each parameter; N) or stimulated samples. The range of variability was calculated as average of MFIs of all barcoded samples ± 2SD. The ratio of variability was defined as the ratio between the average of barcoded samples in every position in a matrix and the average of barcoded samples in p1 (only DMSO). (B) MFIs for each fluorochrome were compared to those obtained from matched not-barcoded (w/o FCB) samples by Pearson analysis. (C) Ranges and ratios of variability were calculated for each population, and values outside the ranges (< −2SD or > +2SD; or < 0.8 or > 1.2) were highlighted in black.

Techniques:

MFIs of pSTAT1, pSTAT3, and pSTAT5 in CD4+, CD8+, CD20+, and CD14+ cells were obtained from barcoded populations of each stimulated and matched unstimulated sample and fold change (FC) calculated. Mean and SD of all FC values in each population were calculated in order to identify the range of variability: Average FC ± 2SD. The ratio of variability was also defined as Average FC in pi (from p1 to p9) / Average of all FC. Values outside of these ranges were highlighted in black.

Journal: Journal of immunological methods

Article Title: High Throughput pSTAT Signaling Profiling by Fluorescent Cell Barcoding and Computational Analysis

doi: 10.1016/j.jim.2019.112667

Figure Lengend Snippet: MFIs of pSTAT1, pSTAT3, and pSTAT5 in CD4+, CD8+, CD20+, and CD14+ cells were obtained from barcoded populations of each stimulated and matched unstimulated sample and fold change (FC) calculated. Mean and SD of all FC values in each population were calculated in order to identify the range of variability: Average FC ± 2SD. The ratio of variability was also defined as Average FC in pi (from p1 to p9) / Average of all FC. Values outside of these ranges were highlighted in black.

Techniques:

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