EMBO/SourceData huggingface dataset:
Figure 6(B) IF for Tuj1 and Map2 (not shown) to identify newly formed neurons in NPCs after seven-day culture in differentiation medium. Empty CAG-IRES-EGFP vector was used as control in cells not transduced with Sox4/11. Transduced cells were identified by IF for GFP (Co and DKO) or FLAG (Co + Sox4/11 and DKO + Sox4/11). Arrowheads indicate mature neurons and asterisks denote immature neurons lacking neurite extension. Scale bar 20 μm. (C) Quantification of transduced Tuj1+ cells from (B). Note the decrease in neuron number in DKO cultures compared to control, and the rescue in DKO cultures upon Sox4/11 expression (experiment performed twice in triplicates, representative experiment shown). Data are means ± SEM.(E) IF for Tuj1 to identify newly formed neurons in NPCs after seven-day culture in differentiation medium. Arrowheads indicate mature neurons and asterisks denote immature neurons lacking neurite extension. Scale bar 20 μm. (F) Quantification of Tuj1+ cells in control, control + CHIR (1 µM, 3 µM), DKO, and DKO + CHIR NPC cultures. Data are means ± SEM (experiment performed twice in triplicates, representative experiment is shown). Numbers below asterisks show fold change.
Figure 1(G) U2OS (left panel, n=6 biological replicates) or HeLa cells (right panel, n = 3 biological replicates) were transfected with the indicated siRNA; 48 hours post-transfection, they were treated with the radiomimetic antibiotic, phleomycin (50 μg/mL), and collected at the indicated time points. Flow cytometry analysis of phosphorylated-H2AX signal was used to measure γ-H2AX endogenous signal. Data are represented as a bar graph showing the mean ± SEM, each replicate being represented by a round symbol. Significance was determined by two-way ANOVA followed by a Holm-Sidak's test. *P<0.05, **P<0.01, ***P<0.0005.(H) U2OS (n=8 biological replicates) were transfected with the indicated siRNA; 48 hours post-transfection, they were treated with the radiomimetic antibiotic, phleomycin (50 μg/mL), and collected at the indicated time points. Data are represented as a bar graph showing the mean ± SEM, each replicate being representing as a round symbol. Significance was determined by two-way ANOVA followed by a Sidak's test. *P<0.05.
Figure 2(A) U2OS (left panel), RPE1-hTERT (middle panel), and HeLa cells (right panel) were monitored for their sensitivity to the radiomimetic drug NCS using the SRB assay. For each cell line, the following conditions were used: U2OS cells were transfected with a nontargeting siRNA (siCtrl) or an siRNA targeting human POGZ (siPOGZ-1 or -2); RPE1-hTERT cells were transduced a control shRNA (shCtrl) or a shRNA directed against human POGZ (shPOGZ-1 or -2); HeLa cells expressing a non-targeting sgRNA (sgCtrl) or a sgRNA targeting human POGZ and sub-cloned (POGZ∆-1 or -2). Cells were pulsed with NCS at the indicated concentrations for 1 hour, replenished with fresh medium and incubated for 4 days before being processed for SRB assays. Data are represented as a bar graph showing the relative mean ± SEM, each replicate being representing as a round symbol (3 biological replicates). Significance was determined by two-way ANOVA followed by a Bonferroni's test. *P<0.01.(D) U2OS (left panel) and HeLa (right panel) cells containing the DR-GFP reporter construct were transfected with the indicated siRNA. 24h post-transfection. Cells were transfected with the I-SceI expression plasmid or an empty vector (EV), and the GFP+ population was analyzed 48h post-plasmid transfection. The percentage of GFP+ cells was determined for each individual condition and subsequently normalized to the non-targeting condition provided with I-SceI (siCtrl, I-SceI). Data are represented as the mean ± SEM, each replicate being representing as a round symbol (n=3 biological replicates). Significance was determined by one-way ANOVA followed by a Dunnett's test. *P≤0.0001.(F) Quantification of γ-H2AX foci in HeLa cells where POGZ has been targeted by CRISPR technology (POGZ∆-1 or -2) and in control HeLa cells (sgCtrl). Cells were exposed to 1 Gy before being pulsed with Edu for 1hr and were recovered at the indicated time points. Cells were fixed, stained, and imaged via confocal microscopy. Data are the total number of γ-H2AX foci in EdU+ cells and represented as a bar graph showing the mean ± SD (n = 3 biological replicates, with at least 100 cells analyzed for each time point). Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.05, **P<0.0005. (G) Representative images used for quantification in (F). Scale bar = 5 μm.
Figure 3(A) U2OS stably expressing mCherry-LacR-FokI were transfected with the indicated siRNA. 24h post-transfection, DNA damage was induced using Shield1 and 4-OHT. Immunofluorescence against the indicated DNA repair proteins was subsequently performed to monitor their accumulation at sites of DNA damage by confocal microscopy. Data are represented as a box-and-whisker (10-90 percentile) where the fluorescent signal at the mCherry focus was normalized to nuclear background. At least 100 cells per condition were counted (n=3 biological replicates). Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.05, **P<0.005, **P≤0.0005.(B) U2OS (left panel), RPE1-hTERT (middle panel), and HeLa cells (right panel) were monitored for their capacity to form IR-induced BRCA1 foci. For each cell line, the following conditions were used: U2OS cells were transfected with a nontargeting siRNA (siCtrl) or an siRNA targeting human POGZ (siPOGZ-1 or -2); RPE1-hTERT cells were transduced a control shRNA (shCtrl) or a shRNA directed against human POGZ (shPOGZ-1 or -2); HeLa cells were expressing a non-targeting sgRNA (sgCtrl) or a sgRNA targeting human POGZ and sub-cloned (POGZ∆-1 or -2). Cells were exposed to 1 Gy before being pulsed with Edu for 1hr and were recovered 1h post-exposure to IR. Cells were fixed, stained, and imaged via confocal microscopy. Data are the total number of ΒRCA1 foci in EdU+ cells and represented as a bar graph showing the mean ± SD (n = 3 biological replicates, with at least 100 cells analyzed for each time point). Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.005, **P<0.001.(E) U2OS stably expressing mCherry-LacR-FokI were transduced with the indicated shRNA and subsequently transfected with the indicated siRNA. 24h post-transfection, DNA damage was induced using Shield-1 and 4-OHT. Immunofluorescence against BRCA1 was subsequently performed to monitor its accumulation at sites of DNA damage by confocal microscopy. Data are represented as a box-and-whisker (10-90 percentile) where the fluorescent signal at the mCherry focus was normalized to nuclear background. At least 50 cells per condition were counted. Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.0001.(G) U2OS stably expressing mCherry-LacR-FokI were transduced with the indicated siRNA. 24h post-transfection, DNA damage was induced using Shield-1 and 4-OHT. Immunofluorescence against the indicated HP1 isoform was subsequently performed to monitor its respective accumulation at sites of DNA damage by confocal microscopy. Data are represented as a box-and-whisker (10-90 percentile) where the fluorescent signal at the mCherry focus was normalized to nuclear background. At least 75 cells per condition were counted. Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.005, **P<0.0001.
Figure 4(C) HeLa cells transfected with the indicated construct were monitored for their capacity to form IR-induced BRCA1 foci. HeLa cells where POGZ has been targeted by CRISPR technology (POGZ∆-1) and in control HeLa cells (sgCtrl) were transfected by an empty Flag vector (EV) or a sgRNA-resistant FLAG-tagged POGZ cDNA construct corresponding to indicated rescue mutant (full-length, FL; POGZ801-848, HPZ). Cells were exposed to 1 Gy before being pulsed with Edu for 1hr and were recovered 1h post-exposure to IR. Cells were fixed, stained, and imaged via confocal microscopy. Data are the total number of ΒRCA1 foci in EdU+ cells and represented as a bar graph showing the mean ± SD (n = 3 biological replicates, with at least 100 cells analyzed for each time point). Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.05, **P<0.0001. (D) Representative images used for quantification in (C). Scale bar = 5 μm. (E) Similar as in (C) except that γ-H2AX foci were monitored at the indicated time points by confocal microscopy. Data are the total number of γ-H2AX foci in EdU+ cells and represented as a bar graph showing the mean ± SD (n = 3 biological replicates, with at least 100 cells analyzed for each time point). Significance was determined by two-way ANOVA followed by a Dunnett's test. *P<0.05. (F) Representative images used for quantification in (E). Scale bar = 5 μm.
Figure 5Observed genotypic distribution of offspring of heterozygous Pogz+/∆ crosses at specified embryonic day. Each litter is considered a biological replicate. Data are represented as a bar graph showing the mean ± SEM (n for each embryonic day is specified). (D)(E) The body mass of male wild-type (WT) or Pogz+/∆ mice was monitored weekly for 4 weeks post-weaning. Data are represented as a bar graph showing the mean ± SEM and each mouse is represented by a round dot (WT) or a square (Pogz+/∆ ). At least 4 mice per genotype was monitored. Significance was determined by two-way ANOVA followed by a Sidak's test. *P<0.05.(H) Quantification of the distance travelled (left panel) and the average speed (right panel) of each mouse (n=6 mice per genotype) in the open field. Data are represented as a bar graph showing the mean ± SEM and each mouse is represented by a a round dot (WT) or a square (Pogz+/∆ ). Significance was determined by unpaired two-tailed t-test. *P<0.005.(L) Plasma was isolated from cardiac punctures of wild-type (WT) or Pogz+/∆ mice (8 weeks) and assessed for circulating levels of specified immunoglobulin isotypes. Each mouse is represented by a round dot (WT) or a square (Pogz+/∆ ) (n=6 mice per genotype). Significance was determined by two-way ANOVA followed by a Bonferroni's test. *P<0.005.
Figure 6(A) Wild-type (WT) and Pogz+/∆ mice were subjected to a lethal dose of ionizing radiation (8.5 Gy) before recovering in sterile conditions and being assessed for their sensitivity to IR. Data are represented as a Kaplan-Meier survival curve of each genotype ((n=6 mice per genotype). Significance was determined by log-rank (Mantel-Cox) test. *P<0.005.(D) MEFs were monitored for their sensitivity to the radiomimetic drug phleomycin using the SRB assay. Immortalized MEFS obtained from the indicated genotype were treated with increasing concentrations of phleomycin for 1hr, replenished with fresh medium and incubated for 4 days before being processed for SRB assays. Data are represented as a bar graph showing the relative mean ± SEM, each replicate being representing as a round dot (WT) or a square (Pogz+/∆ ). Significance was determined by two-way ANOVA followed by a Bonferroni's test. *P<0.005, **P<0.0005.(H) Stimulated CD43-negative splenocytes were loaded on slides via Cytospin and processed for γ-H2AX immunofluorescence. Cells were fixed, stained, and imaged via confocal microscopy. Data are the percentage of cells in a field of view with indicated γ-H2AX foci and are represented as a bar graph showing the mean ± SEM. At least 100 cells per genotype were counted. Significance was determined by two-way ANOVA followed by a Sidak's test. *P<0.05, **P<0.005.
Figure 1A Volcano plot representing the statistical analysis of the fold enrichment of proteins after affinity purification in HEPES epes buffer of ABCE1-TAP followed by label-free quantification (LFQ) using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Proteins above the curved lines show a statistically significant enrichment according to the t test value.B, C Sucrose density gradient UV-profile after in vitro splitting assays (B) and relative abundance of 80S and subunits as calculated from triplicates and displayed as mean ± SD. (C); SF = splitting factors including Dom34, Hbs1, ABCE1 and eIF6; (+) = 4-fold molar excess of eIF3j; (++) = 20-fold molar excess of eIF3j.
Figure 2(A) Comparison of transcriptomics (data from 3 independent experiments) and H3K27ac ChIP-seq (data from 3 independent experiments) from MPH. Genes were assigned to H3K27ac regions The number of ERS DOWN genes is indicated relative to the number of ERS UP genes for the 3 categories of H3K27ac regions. Fisher's exact test with BH correction for multiple testing was used to assess statistical significance, *P < 0.05, #P < 0.05.(B) The number of LIVER-ID and UBQ genes is indicated relative to the number of other genes for the 3 categories of H3K27ac regions. The H3K27ac ChIP-seq data were obtained from 3 independent MPH experiments. Chi-square test with BH correction for multiple testing was used to assess statistical significance, #P < 0.05.(C) Multidimensional scaling (MDS) was performed and transcriptional regulator co-recruitment was depicted using density plots for regions with increased (a), decreased (b) or unchanged (c) H3K27ac levels in MPH upon acute ERS. The boxed area (d) represents a subset of transcriptional regulators (TR) with a high degree of co-binding in H3K27ac DOWN regions. LIVER-ID TFs are depicted in red.(D) Heatmaps showing the percentage of enhancers overlapping H3K27ac down regions. Enhancers were first split into those bound or not by a given LIVER-ID TF (right) and then based on co-binding of additional LIVER-ID TFs (defining 3 subgroups with 0-2, 3-5 or 6-8 co-bound additional LIVER-ID TFs).(E) Enrichment plots from GSEA performed using LIVER-ID TFs as the gene set and transcriptomic changes induced by acute ERS in MPH (upper panel) or mouse liver (lower panel) as the ranked gene list.(F) RT-qPCR analyses of selected LIVER-ID TFs monitoring expression changes induced by acute ERS in MPH (4 to 7 independent experiments). The bar graph shows means ± SD (standard deviations). One-sample t-test with BH correction for multiple testing was used to determine if the mean Log2 FC ERS/Control is statistically different from 0, *P < 0.05.(G) RT-qPCR analyses of selected ERS UP and LIVER-ID TF genes monitoring expression changes induced by 4h ERS in MPH pre-treated or not for 30min with 5mM PBA (3 independent experiments). Mean Log2 FC ERS/Control are shown. The bar graph shows means ± SD (standard deviations). Two-way ANOVA with Bonferroni's post-hoc test was used to assess statistical significance, *P < 0.05.(H-I) Nuclear extracts (H) and chromatin fractions (I) from MPH were subjected to Western blot with antibodies against HNF4A, NR1H4/FXR, FOXA2/HNF3B or DDIT3/CHOP. LMNA or histone H3 were used as loading controls. Results obtained from 3 independent biological replicates are shown.
Figure 3(A) RT-qPCR analyses of Hlf, Tef, Dbp and Nfil3 expression monitoring changes induced by acute ERS in MPH (3 to 5 independent experiments) (left panel) or mouse liver (5 mice per group) (right panel). The bar graphs show means ± SD (standard deviations). One-sample t-test with BH correction for multiple testing was used to determine if the mean Log2 FC ERS/Control is statistically different from 0, *P < 0.05.(B) Total protein extracts from MPH (left panel) or mouse liver (right panel) were subjected to Western blot with an antibody against NFIL3. ACTB was used as loading control.(C) Chromatin fractions from MPH (upper panel) or mouse liver (lower panel) were subjected to Western blot with an antibody against NFIL3. Histone H3 was used as loading control.(D) Enrichment scores from GSEA performed using LIVER-ID genes repressed by acute ERS in MPH (MPH ERS DOWN) as the gene set and liver transcriptomic changes induced by acute ERS and/or deletion of Nfil3 (NFIL3 KO) as the ranked gene lists were integrated and corrected for multiple testing using the BubbleGUM tool. For the NFIL3 KO ERS vs WT ERS comparison, the Core Enrichment genes (i.e. the subset of genes that contributes most to the enrichment result) were subjected to functional enrichment analyses using the ToppGene Suite. The top ranked KEGG Pathway with its Bonferroni-corrected p-value is shown.(E) Box plots showing mRNA expression for 5 genes from the Core Enrichment from D involved in xenobiotic metabolism issued from the transcriptomic analyses. Shown are Log2 FC relative to the mean normalized expression in the WT Control group (5 mice per group). Box plots are composed of a box from the 25th to the 75th percentile with the median as a line and min to max as whiskers. Two-way ANOVA with Bonferroni's post-hoc test was used to assess statistical significance, *P < 0.05.(F) The Integrated Genome Browser (IGB) was used to visualize ChIP-seq profiles for NFIL3 (green) and several LIVER-ID TFs (red) in the mouse liver at the Gsta3 gene locus. Levels of H3K27ac in MPH and cells from the non-parenchymal fraction (NPC) are shown in blue. The grey bar indicates the position of a BRD4 SE.
Figure 4(A) BRD4 occupancy (left panels) and H3K27ac levels (right panels) at regulatory regions associated with ERS UP or LIVER-ID genes (8 regions at ERS gene loci and 10 regions at LIVER-ID gene loci were assessed by ChIP-qPCR in MPH (10 independent experiments) or mouse liver (10 mice per group) to define changes induced by acute ERS. Box plots are composed of a box from the 25th to the 75th percentile with the median as a line and min to max as whiskers. One-sample t-test with BH correction for multiple testing was used to determine if the mean Log2 FC ERS/Control is statistically different from 0, *P < 0.05.(B) Left panel, BRD4 mRNA (4 independent experiments) or protein expression levels (5 independent experiments; densitometric quantification in MPH subjected to acute ERS. The bar graphs show means ± SD (standard deviations). Student's t-test was used to assess statistical significance. Right panel, Total protein extracts from MPH pre-treated for 3h with 0.01µM MZ1 followed by addition of 1µM thapsigargin (ERS) for 4h were subjected to Western blot with an antibody against BRD4. LMNA was used as loading control.(C) Heatmaps showing Log2 FC (relative to the DMSO/Control condition) for 5 ERS UP and LIVER-ID genes issued from RT-qPCR analyses of MPH pre-treated with 500nM JQ1 (left) or 0.01µM MZ1 (right) followed by addition of 1µM thapsigargin (ERS) for 4h (3 to 6 independent experiments). Two-way ANOVA with Bonferroni's post-hoc test was used to assess statistical significance.(D) Heatmaps showing average H3K27ac ChIP-seq signals in MPH at LIVER-ID domains overlapping (+) or not (-) with BRD4 SE. The arrow indicates the position of gene transcriptional start sites.(E) Box plots showing Log2 FC ERS/Control in MPH (3 independent experiments) (left panel) or mouse liver (3 mice per group) (right panel) for genes associated with LIVER-ID + BRD4 SE or LIVER-ID - BRD4 SE Box plots are composed of a box from the 25th to the 75th percentile with the median as a line and min to max as whiskers. Student's t-test was used to assess statistical significance, *P < 0.05.
Figure 6(A) analysis using transcriptomic data from the liver of sepsisBIM mice (16h after intraperitoneal injection of live E. coli).(B-C) Enrichment plots from GSEA performed using LIVER-ID genes (B) or the response to ERS gene set (GO:0034976) (C) as the gene set and transcriptomic differences in sepsisBIM vs Control mouse liver as the ranked gene list.(E) Box plots showing Log2 FC for ERS UP, DOWN or unchanged genes in sepsisBIM vs Control mouse liver (6 mice per group). Box plots are composed of a box from the 25th to the 75th percentile with the median as a line and min to max as whiskers. One-way ANOVA with Welch's correction and Dunnett's Modified Tukey-Kramer pairwise multiple comparison test was used to assess statistical significance, *P < 0.05.(F) RT-qPCR analyses of selected ERS UP genes and LIVER-ID TFs monitoring expression changes in the liver of sepsisBIM vs Control mice (6 mice per group). The bar graph shows means ± SD (standard deviations). One-sample t-test with BH correction for multiple testing was used to determine if the mean Log2 FC sepsisBIM/Control is statistically different from 0, *P < 0.05.(G) Nuclear extracts from livers of control or sepsisBIM mice were subjected to Western blot or Simple Western immunoassay with antibodies against HNF4A, NR1H4 or FOXA2. LMNA was used as loading control.(H) Nuclear extracts from livers of sepsisBIM mice pre-treated for 4 consecutive days with vehicle or 500 mpk TUDCA were subjected to Western blot with antibodies against HNF4A, NR1H4, FOXA2 or XBP1S. TFIIB was used as loading control. (I) Densitometric quantification of the protein expression data from 6 mice precondition shown in panel (H) (3 mice per condition) The bar graph shows means ± SD (standard deviations). One-sample t-test with BH correction for multiple testing was used to determine if the mean Log2 FC TUDCA/Vehicle is statistically different from 0, *P < 0.05.(J) Serum alanine aminotransferase (ALT) (left) and aspartate aminotransferase (AST) activities (right) from sepsisBIM mice pre-treated for 4 consecutive days with vehicle or 500 mpk TUDCA (10 mice per group). The bar graphs show means ± SD (standard deviations). Student's t-test was used to assess statistical significance, *P < 0.05.
Figure 1(A-B) Human fibroblasts (BJ) were treated with vehicle (water for 8 times 24 hours) or abemaciclib (1 μM for 8 times 24 hours). The population doubling over the 8 days treatment is plotted (A). 1 or 8 dpt, cells were incubated with EdU for 20 hours and stained and quantified (n=9 samples from 3 independent experiments; scale bar, 150 μm) (B). Data information: Data are means ±SD. Unpaired student t-test *p<0.05, **p<0.01, ***p<0.001. dpt, days post treatment.(C) Chromatin was extracted from BJ cells treated with vehicle or abemaciclib (1 μM for 8 times 24 hours) or nutlin-3a (10 μM for 8 times 24 hours) or doxorubicin (250 nM for 24 hours) and ChIP assays using an antibody against p53 were performed. qRT-PCR was performed using primers amplifying promoter regions of CDKN1A, GADD45A and MDM2 genes containing p53 binding sites. Values indicate fold enrichment relative to the vehicle group (n=3 independent experiments). Data information: Data are means ±SD. Two-way ANOVA *p<0.05, **p<0.01, ***p<0.001.(E) 3*103 BJ cells of the indicated genotypes were re-plated after vehicle or abemaciclib treatment (1 μM) and stained with 0.2% crystal violet 8 dpt (n=3 independent experiments). (F) 8 dpt, treated BJ cells were incubated with EdU for 20 hours and stained (n=9 samples from 3 independent experiments). ( Data information: Data are means ±SD. One-way ANOVA *p<0.05, **p<0.01, ***p<0.001.(G) 3*103 mouse dermal fibroblasts (MDFs) of the indicated genotypes were re-plated after vehicle or abemaciclib treatment (4 μM for 8 times 24 hours) and stained with 0.2% crystal violet 8 dpt (n=3 independent experiments). (H) 8 dpt, treated MDFs were incubated with EdU for 20 hours and stained (n=9 samples from 3 independent experiments). ( Data information: Data are means ±SD. Unpaired student t-test *p<0.05, **p<0.01, ***p<0.001.(I) RNA was isolated from vehicle or abemaciclib (1 μM) treated scramble/shp53 BJ cells and mRNA for the indicated genes quantified by qRT-PCR relative to tubulin (n=3 independent experiments). Data information: Data are means ±SD. Two-way ANOVA *p<0.05, **p<0.01, ***p<0.001.