EMBO/sd-character-level-ner huggingface dataset:
ROS inhibition studies and their impact on neutrophil autophagic activity.Figure 7(A) LC3B conversion status after pretreatment with the ROS scavenger BHA prior to PMA or E. coli stimulation (lane I: PMA, lane II: PMA+BHA, lane III: E. coli, lane IV: E. coli+BHA, lane V: control cells). One representative out of four independent experiments is shown. (B) LC3B conversion status after pretreatment with the NADPH oxidase inhibitor DPI in E. coli−phagocytosing neutrophils (lane I: PBS, lane II: E. coli, lane III: E. coli+DPI). One representative out of four independent experiments is shown. (C) (I) Effect of NADPH‐oxidase inhibition with DPI in the formation of acidified autophagosomes in E. coli‐phagocytosing neutrophils. (II) Percentage of PMN with acidified vacuoles as detected by MDC staining. E. coli−phagocytosing PMN (77.17±8.33%) and PMN treated with DPI before incubation with opsonized E. coli (21.67±4.37%). Data are representative of six independent experiments and presented as mean±SD; Wilcoxon matched‐pairs test, *p<0.05 (D) (I) Assessment of formation of acidified autophagosomes in neutrophils pretreated with BNP before stimulation with peptidoglycan (PGN), compared with cells treated with PGN. (II) Percentage of PMN with acidified vacuoles as detected by MDC staining. PGN‐treated neutrophils (74.83±9.09%) and neutrophils pretreated with BNP before the addition of PGN (17.33±2.07%) compared with control conditions (14.67±3.20%). Data are representative of six independent experiments and presented as mean±SD; Wilcoxon matched‐pairs test, *p<0.05, n.s.=not significant: (E) Alterations in LC3B conversion in BNP pretreated, peptidoglycan‐stimulated neutrophils (lane III), (lane I: medium‐treated cells, lane II: peptidoglycan‐treated cells). One representative out of four independent experiments is shown. (F) Effect of PI3K inhibition with 3‐MA in the percentage of PMA‐induced oxidizing cells. PMA (99.41±0.33%) and PMA+3‐MA (15.82±3.97%). Data are representative of six independent experiments and presented as mean±SD; Wilcoxon matched‐pairs test, *p<0.05.
Figure 3A. H295R/TR N-FlagFATE1 cells were transfected with D1 ER marker for ER (green) and mtRFP marker for mitochondria (red). Manders' coefficient for green-red signals colocalization in basal (white histograms) and Dox-treated (black histograms) cells is shown on the right (mean ± SEM; n=12). ***p<0.001. Scale bars, 10 μm. B. Effect of FATE1 expression on ER-mitochondria distance in H295R/TR N-FlagFATE1 cells measured using a split-GFP probe [29]. Quantification is shown in the graph. White histogram, number of fluorescent objects/cell in basal conditions; black histogram, number of fluorescent objects/cell in Dox-treated cells (mean ± SEM; n=6 with 90 cells analyzed in total). **p<0.01. Scale bars, 5 μm. C. Transmission electron microscopy images of H295R/TR N-FlagFATE1 cells cultured in basal conditions or treated with Dox. ER-mitochondria contacts are indicated by white arrowheads. Scale bars, 200 nm. Right, quantification of the number of contacts normalized by the number of mitochondria and the percentage of mitochondria with ER contact sites is shown in basal conditions (white histograms) and after Dox treatment (black histograms) of cells (mean ± SEM; n=38 for basal and 47 for Dox-treated cells). ***p<0.001. D. Transmission electron microscopy images of H295R/TRSF-1 cells cultured in basal conditions or treated with Dox. ER-mitochondria contacts are indicated by white arrowheads. Scale bars, 200 nm. Right, quantification of the number of contacts normalized by the number of mitochondria and the percentage of mitochondria with ER contact sites is shown in basal conditions (white histograms) and after Dox treatment (black histograms) of cells (mean ± SEM; n=41 for basal and 42 for Dox-treated cells). ***p<0.001. E. Mitochondrial shape (BacMam Mitochondria-RFP; in red) in H295R/TR N-FlagFATE1 cells shown by fluorescence confocal microscopy in basal conditions and after Dox treatment. FATE1 (green), DAPI (blue). A higher magnification of merged green and red signal is shown in the insets. Scale bars, 10 μm.F. Mitochondrial fragmentation index in H295R/TR N-FlagFATE1 cells after Dox treatment (red histogram) compared to cells cultured in basal conditions (white histogram) (mean ± SEM; n=111 for basal and 101 for Dox-treated cells). ***p<0.001. G. Mitochondrial fragmentation index in H295R/TRSF-1 cells after Dox treatment (green histogram) compared to cells cultured in basal conditions (white histogram). (mean ± SEM; n=37 for basal and 49 for Dox-treated cells). ***p<0.001. H. Mitochondrial membrane potential (∆Ψ) measured by TMRM fluorescence after Dox treatment of H295R/TR N-FlagFATE1 cells (red histogram) compared to cells cultured in basal conditions (white histogram). Mean ± SEM is shown. (mean ± SEM; n=3 with 12 replicates/experiment). ns, not significant.
Figure 5A Impact of K63-ubiquitination loss on FOXP3's gene silencing capacity. Jurkat T cells transfected with a wild type Foxp3 expression vector, one encoding the K262R mutant, or an empty (control) vector also received a duel luciferase reporter construct where luciferase expression was under the control of the Il2 promoter. After activation with PMA and ionomycin for 8 hours, luciferase activity was assayed. B IL-2 production in the presence of wild type and K63-ubiquitination resistant FOXP3. Naïve CD4+ T cells isolated from Traf6fl/flCD4Cre+ or WT mice were activated overnight by anti-CD3/CD28 antibodies, then transduced by retroviruses carrying normal Foxp3, the K262R mutant, or an empty vector. Ires-GFP in the retroviral vector serves as an internal control. GFP+ cells were sorted out 48 hours post-transduction. The sorted cells were cultured for one additional day. Culture supernatants were collected for measuring the levels of IL-2 by ELISA. C Cellular distribution of wild type and K262R FOXP3. Hela cells were transfected with expression vectors encoding either wild type FOXP3 or the K262R mutant. The relative overlap of FOXP3 protein signal and DAPI-stained nuclei was observed by fluorescence microscopy. (blue: DAPI, green: FOXP3, Scale bars: 50 μm). D Immunostaining of FOXP3 in Traf6fl/flCD4Cre+ and wild type (Traf6fl/flCD4Cre-) derived suspensions of lymph node and spleen cells. (blue: DAPI, green: FOXP3, Scale bars: 50 μm). E Quantification of FOXP3 distribution in murine Tregs. The degree of FOXP3-nuclear coIocalization in CD4+/FOXP3+ cells isolated from the lymph nodes and spleens of Traf6fl/flCD4Cre+ and wild type (Traf6fl/flCD4Cre-) mice was determined by Imagestream analysis, and the frequencies of cells with either a low or high probability of nuclear FOXP3 distribution are shown (red: nuclear stain, green:FOXP3, Scale bars: 10 um).
Nuclear ploidy and binucleation are reduced in HCC tumor tissue A, B (A) Binucleation was assessed blinded in H&E stained sections of murine non-tumor (NT) and tumor tissue (T) also shown in (B).Figure 3(A) Binucleation was assessed blinded in H&E stained sections of murine non-tumor (NT) and tumor tissue (T) T: wt n=14, Casp-2-/- n=11, Raidd-/- n=10, Pidd1-/- n=10; NT: wt n=8, Casp-2-/- n=10, Raidd-/- n=8, Pidd1-/- n=9. N-numbers refer to biological replicates. Binucleation was assessed blinded in H&E stained sections of murine non-tumor (NT) and tumor tissue (T) also shown in (B). T: wt n=14, Casp-2-/- n=11, Raidd-/- n=10, Pidd1-/- n=10; NT: wt n=8, Casp-2-/- n=10, Raidd-/- n=8, Pidd1-/- n=9. N-numbers refer to biological replicates. C, D (C) Representative histograms of nuclei stained for DNA, which were isolated from non-tumor and tumor tissue of wt and Casp2-/- mice. These animals are marked as red "x" in the quantification shown in (D) were the degree of polyploidy is reflected as percentage of octaploid nuclei (T: wt n=17, Casp-2-/- n=11, Raidd-/- n=10, Pidd1-/- n=8; NT: wt n=12, Casp-2-/- n=11, Raidd-/- n=7, Pidd1-/- n=5). N-numbers refer to biological replicates.
Figure 3(A) EI24 binds to IP3R1 in response to ER stress. HeLa cells stably expressing Flag-EI24 were treated with 4 μM tunicamycin (TM) for the indicated times. Protein-protein interactions were analyzed by immunoprecipitation (IP). (B, C) EI24 knockout causes resting-state ER calcium reduction (B) and cytosolic calcium elevation (C) under ER stress. Control (sgGFP) and EI24 knockout (sgEI24) HeLa cells were first perfused in TM-free buffer, and switched to the buffer containing 4 μM TM to induce ER stress where indicated. Resting state calcium levels in the ER (B) and cytosol (C) with or without TM are displayed in columns. Data information: N = 20 cells for one replicate. Data are mean ± SEM (n = 3 technical replicates). ns, no significant difference; ***P < 0.001; two-tailed Student's t-test. (D, E) EI24 knockout accelerates calcium mobilization from the ER (D) to cytosol (E). Cells pretreated with or without 4 μM TM for 2 hr were subjected to calcium mobilization assay. Cells were first perfused in calcium-containing buffer, and switched to calcium-free buffer containing 100 μM histamine to stimulate calcium mobilization from the ER to cytosol. ER calcium depletion rates (D) and peak cytosolic calcium values (E) are displayed in columns. Data information: N = 20 cells for one replicate. Data are mean ± SEM (n = 3 technical replicates). ns, no significant difference; ***P < 0.001; two-tailed Student's t-test. (F) Validation of siRNA knockdown efficiency for IP3R1 and IP3R3. HeLa cells transfected with siRNA targeting IP3R1 or IP3R3 were analyzed for IP3R1 and IP3R3 protein expression by immunoblotting. (G) Knockdown of IP3R1 prevents calcium mobilization from the ER to the cytosol. The measurements were similarly performed as in (E), and were from the same batch of cells. Data information: N = 20 cells for one replicate. Data are mean ± SEM (n = 3 technical replicates). ns, no significant difference; ***P < 0.001; two-tailed Student's t-test. (H) EI24 binds IP3R1 via the C-terminus. HeLa cells transfected with the indicated EI24 domains were treated with or without 4 μM TM for 2 hr. Protein-protein interactions were analyzed by IP. The star represents IgG light chains. (I) Wild-type EI24, but not the TM34- or C-terminus-deleted mutant, preserves ER calcium stores in EI24 knockout cells. The measurements were similarly performed as in (E), and were from the same batch of cells. Data information: N = 20 cells for one replicate. Data are mean ± SEM (n = 3 technical replicates). ns, no significant difference; ***P < 0.001; two-tailed Student's t-test.
Figure 7SIRF analysis of RAD51 binding to forks. Representative RAD51 SIRF images at normal or stalled forks are shown. Scale bars: 10 µm. Two independent treatments were performed and scatter plot of RAD51-bound replication sites from one experiment is shown. Mean values in each sample are listed at the top of the graph. N, number of cells analyzed in each sample in one experiment. RAD51 foci formation in U2OS CTC1 knockdown cells was rescued by RNAi-resistant WT but not by ∆700N. Cells were treated with HU (2 mM, 16 h) and stained with anti-RAD51. Representative images are shown. Scale bars: 10 µm. Scatter plot of RAD51 foci number with and without HU treatment is shown. Mean values in each condition are listed at the top of the graph. DNA fiber analysis of nascent-strand DNA degradation in U2OS cells with STN1 and RAD51 co-depletion. Three independent treatments were performed and results from one biological replicate are shown. N, the number of DNA fibers analyzed in each sample in one experiment. Western blots showing protein knockdown in DNA fiber assays are included. Model for CST in protecting reversal forks stability. Upon fork stalling, the stalled fork is reversed by SMARCAL1, ZRANB3, or others. CST binds to ssDNA (5' overhang) at reversed forks to directly block MRE11 access and may also recruit RAD51. Without CST, nascent-strand DNA is degraded by MRE11, leading to the generation of excessive ssDNA and genome instability.
P5CS is required for proline synthesis and upregulated in lung fibrosis patients.Figure 3Schematic of the mitochondrial proline biosynthetic pathway. Western blot of NIH-3T3 cells treated with TGFβ (2 ng/mL for all experiments) or mock for 48h in the presence of 0.5% FBS. Left: NIH-3T3 cells expressing sgCtrl, sgP5CS-1 or sgP5CS-2 were treated with TGFβ or mock for 48h, and proline abundance was measured by GC-MS. Values are relative to mock-treated sgCtrl expressing cells. Right: western blot of NIH-3T3 cells expressing sgCtrl, sgP5CS-1 or sgP5CS-2. Western blot of NIH-3T3 cells expressing sgCtrl or sgP5CS-2 and treated with TGFβ or mock for 48h in the presence or absence of 0.15 mM proline. Collagen abundance in ECM produced by NIH-3T3 cells expressing sgCtrl or sgP5CS-2 grown in the presence or absence of TGFβ and 0.15 mM proline, measured by picrosirius red staining and normalized to the packed cell volume of cells grown on a parallel plate under identical conditions. Values are relative to mock-treated sgCtrl expressing cells. Proline abundance in NIH-3T3 cells expressing empty vector or HA-P5CS cDNA, measured by GC-MS. Values are relative to mock-treated empty vector expressing cells. Western blot of NIH-3T3 cells expressing empty vector or HA-P5CS cDNA. Collagen abundance in ECM produced by NIH-3T3 cells expressing empty vector or HA-P5CS cDNA, measured by picrosirius red staining and normalized to the packed cell volume of cells grown on a parallel plate under identical conditions. Values are relative to mock-treated Analysis of the indicated gene expression datasets for mRNA levels of P5CS: (i) lung tissue from mice with pulmonary fibrosis induced by bleomycin (Bleo) treatment compared to saline treatment (GSE112827); two datasets (GSE110147, GSE32537) from lungs of patients with idiopathic pulmonary fibrosis (IPF) compared to normal controls (Ctrl). AU, arbitrary units. The number of patients per group is indicated. Pearson correlation of P5CS mRNA level and forced vital capacity (FVC) before bronchodilator (pre-BD) as percentage of what was predicted for each patient, from clinical data of GSE32537. Tracing of [U-13C] L-glutamine ([U-13C] Gln) into indicated metabolites. NIH-3T3 cells expressing sgCtrl, sgSmad4-1 or sgSmad4-2 were treated with TGFβ or mock for 48h and the medium was replaced (including all treatments) with DMEM without L-glutamine and supplemented with [U-13C] Gln for the last 8h. Metabolites were measured by GC-MS.
Ectopic insertion of TAS fragment is sufficient to cause nucleosome instability.Figure 5A ChIP-qPCR analysis of H3 at endogenous TAS and a fragment spanning the TAS region from 115-905 bp (relative to telomeric repeat) inserted into the leu1+ locus (see scheme). The TAS fragment was inserted into a strain that lacks endogenous TA Shown are ChIP analyses for WT (left) and ccq1∆ (right; note different the scale of the y-axis) (n = 9-10 independent experiments except for ectopic TAS in ccq1∆ strain where n = 3) Data information data are represented as mean ± SE B ChIP-qPCR analysis of H3 at reporter genes (ura4+ and his3+) at various chromosomal locations (see schemes) in WT cells. TAS1, TAS2, and TAS3 correspond to position 116 bp, 2851 bp and 6291 bp (relative to telomeric repeats), respectively (n = 3 independent experiments). Data information data are represented as mean ± SE
Figure 3A. Mouse GASZ contained a putative transmembrane domain and a region outside of mitochondria predicted by a bioinformatic software TMHMM. B. 293T cells with ectopically expressed proteins were extracted for soluble and membrane bound fraction and examined by Western blots. C. Mitochondrial fraction from 293T cells ectopically expressing GASZ, MitoPLD, AIFM1, or SIRT3 were treated in the presence or absence of Triton X-100 and/or Proteinase K, and examined by Western blots. D. GST pull-down assay of GST-tagged GASZ with FLAG-GASZ produced from 293T cells. E. Co-IP assays of FLAG or GFP-tagged GASZ in 293T cells. Antibodies for Co-IP (IP) or Western blots (WB) were listed on the left. F. BiFC assays in which YFP was detected by flow cytometry in control 293T cells, or 293T cells co-expressed with GASZ fused with N- or C-terminal half of YFP. Ctrl: empty vector control. G. Co-IP assays of GFP-GASZ with various FLAG-tagged wild-type GASZ or its deletion mutants in 293T cells
The integrity of lipid domains is crucial for OPCML modulation of AXL signalling.Figure 5 (A) Filipin staining of SKOV3-OPCML cells treated for 30 minutes with 5mM MBCD and allowed to recover for 0, 30 minutes, and 12 hours in serum free (SF) medium (B) Western blotting of SKOV3-OPCML cells treated with MBCD and separated into the detergent resistant "R" membrane fraction and the detergent soluble "S" fraction upon Gas6 stimulation (C) Ratio of AXL band intensity in "R" or pAXL band intensity in "S" relative to total AXL "T" from SKOV3-OPCML "O" in (B) (D) MBCD treatment of SKOV3-EMPTY and SKOV3-OPCML cell lines was followed by the analysis of Gas6 signalling kinetics by western blot. GAPDH was used as loading control (E,F) Signalling kinetics are presented for pAXL and pERK in SKOV3-EMPTY "E" and SKOV3-OCPML "O", treated with MBCD and no treatment control, normalised to GAPDH, from (D) (G) PLA assay of AXL-OPCML interaction (red) upon Gas6 stimulation in both MBCD treated and non-treated SKOV3-OPCML cells. Scale bar = 50μm (H) Quantification of PLA signals from (G). Data in (A) to (H) are representative of at least three experiments with graphs depicting means ± SEM
FIP200 functions downstream of mTOR in autophagosome formation.Figure 7.(A) Wild-type and FIP200−/− MEFs were treated with 100 ng/ml rapamycin (rapa) or vehicle (DMSO) for 120 min in the presence or absence of 100 nM bafilomycin A1. The cell lysates were subjected to immunoblot analysis with anti-LC3 antibody. (B) Wild-type and FIP200−/− MEFs stably expressing GFP-Atg5 or GFP-LC3 were cultured in the presence of 100 ng/ml rapamycin for 120 min. The formation of GFP-Atg5 (top) and GFP-LC3 (bottom) puncta was examined by fluorescence microscopy. Bar, 20 μm. (C) Wild-type and FIP200−/− MEFs were treated with 10 mM lithium chloride for 24 h or 100 μM C2-ceramide for 2 h.
Figure 4A. Induced 3T3-L1 cells stably expressing Flag-WDTC1 were subjected to subcellular fractionation. Aliquots of total cell extract (TCE) and subcellular fractions were analyzed by immunoblot as indicated; fraction purity was assessed by α-Tubulin and histone H3 antibodies. B. Chromatin enriched nuclear extracts from 293T cells cotransfected with Flag-WDTC1 and HA tagged core histones were immunoprecipitated (IP) with anti-FLAG and immunoblotted (IB) as indicated. The probable H2AK119ub1 band detected in the nuclear extract is indicated by an asterisk. C. Soluble chromatin extracts were prepared from preadipocyte or induced 3T3-L1 cells stably expressing control (EV) and Flag-WDTC1 proteins. H2A monoubiquitylation was detected by H2AK119ub1-specific antibody and total H2A served as loading control. Relative intensity represents ratio of H2AK119ub1 over total H2A signal normalized to EV control. D. Affinity purified Flag-WDTC1 wildtype and mutant ΔH complexes from 293T cells were the source of E3 ligase in in vitro ubiquitylation assays. Copurification of CRL4 E3 ligase proteins was confirmed by immunoblotting and Coomassie Blue staining (left panel). In vitro ubiquitylation assays of recombinant H2A were performed in the presence of indicated proteins. Reaction products were resolved by SDS-PAGE, and ubiquitylatedH2A was detected by anti-H2AK119ub1 (right panel). E. In vitro ubiquitylation assays were performed with purified wild-type and mutant histone proteins as substrates. H2A ubiquitylation was assessed by immunoblotting with anti-ubiquitin and various antibodies as indicated.
Quantification of DNA, mRNA and protein abundance.Figure 2(A) Ratios (log2) of DNA, mRNA and protein abundance changes between HCT116 5/4 and HCT116 aligned with respect to their chromosome position. Each dot represents abundance changes for one gene, the corresponding mRNA and the corresponding protein, respectively. CGH analysis revealed some deleted regions in chromosome 5 (upper panel); the disomic entries were omitted in all analyses (threshold 0.65 [log2]). (B) Overlays of mRNA and protein density histograms (HCT116 5/4 versus HCT116). The full line represents median of protein abundance changes, the dashed line median of mRNA abundance changes. Values of respective medians are plotted in the graph. The difference between distribution of proteins and mRNAs coded on chromosome 5 is statistically significant (Wilcoxon rank sum test). See also Supplementary Figure S2.
A) Protein extracts from cerebellum (CER) of young (Y, 3 months) and old (O, 24 months) mice were analysed for BAG1 and BAG3 expression by immunoblot analysis.Figure 7(A) Protein extracts from cerebellum (CER) of young (Y, 3 months) and old (O, 24 months) mice were analysed for BAG1 and BAG3 expression by immunoblot analysis. (B) Real‐time PCR analysis of indicated mRNA levels in cerebellum of young and old mice. Depicted is the log2 expression ratio of target genes in old mice relative to young mice. Values are expressed as mean±s.e.m. *P0.05 and **P0.01 versus young, n=3. (C) Immunoblot analysis as in (A) but in cortex (CTX), hippocampus (HIP) and mid‐brain (MB). (D) Western‐blot analysis of indicated proteins in different brain regions of young and old mice. (E) Total cathepsin and specific cathepsin B activity in brain extracts from young and old mice was determined using fluorescence probes Z‐FR‐AMC and Z‐RR‐AMC, respectively, as described in the Material and methods section. Values are expressed as mean±s.e.m. *P0.05 versus young, n=3. (F) Expression analysis of indicated proteins in primary hippocampal astrocytic and neuronal cell cultures from young (2 months) and old (24 months) rats. Detection of GLT1 and NeuN served as astrocyte and neuron markers, respectively. Note the NeuN signals in astrocytic cultures. We attributed these signals to the presence of resting nuclei of dead neurons, which we observed under the microscope.
Strong alternative splice sites constitute an AtNTR1‐dependent PolII pause site on the minigeneTransgenic plants expressing 5′SS wt and 5′SS strong constructs were used to perform ChIP experiments using total PolII antibodies.Figure 5Transgenic plants expressing 5′SS wt and 5′SS strong constructs were used to perform ChIP experiments using total PolII antibodies. Line charts present ChIP profile of total PolII on minigene. Reporter gene structure is shown with black boxes representing constitutive exons; grey boxes, alternative region; white boxes, promoter and terminator regions; black lines, introns. Red lines show amplified regions. Above gene structure, a 0.5 kb scale is shown. Arrows on gene structure show localisation of primers used for splicing analysis. Error bars represent ± SD of three independent transgenic lines, **P 0.01 and *P 0.05 of t‐test. Bottom panel shows a schematic representation of 5′SS strong‐NTR1‐dependent and 5′SS wt‐NTR1‐independent consensus as described in . Source data are available online for this figure