EMBO/SourceData huggingface dataset:
Figure 4(A) Representative immunoblots of p-PKCα and total PKCα of isolated nuclei and the corresponding status of lamin B in human dPMNs that were treated with PMA for 0 or 2 h.(B) Representative sectional images of nuclei of two neutrophils treated by PMA, stained for lamin B (primary anti-lamin B, and FITC-labeled secondary antibody), p-PKCα (primary anti-human p-PKCαS657, and PE-labeled secondary antibody), and nuclear DNA (DAPI). The accumulation of p-PKCα (red arrow pointed) at the site of ruptured/interrupted (green arrow) nuclear lamin B, and swollen/de-condensed DNA (blue arrow) were indicated (b1). A neutrophil (white empty arrow) with NET formation that contained the mixture of DNA with p-PKCα and lamin B (white arrow) was also demonstrated (b2). Scale bars, 10 µm.(C) Immunoblot images of lamin B, then stripped and probed for p-PKCα, of the homogenates of NETs isolated from conditioned medium of primary human pPMNs with NET formation that were induced by PMA.(D,E) Representative and summary immunoblot (IB) detection of phospho-lamin B and total lamin B with the lamin B protein purified by immunoprecipitation (IP) with anti-lamin B from human dPMNs that were treated either by PMA (D,E) for 0 or 3 h. Data represent mean ± SD (n=3-5 biological replicates) for E. P*<0.05 between groups as indicated. Comparison between two groups was analyzed by student t test.
Figure 5(A) Summary and representative immunoblots of total PKCα and p-PKCα in dPMNs that were pretreated without or with PKC inhibitor Go6976 for 1 h, and then treated without or with PMA (A) for 3 h. Panels A is summary analyses of immunoblots that were calculated based on the arbitrary unit (A)(B) Immunoblot (IB) detection of the phospho-lamin B and total lamin B with lamin B protein purified by immunoprecipitation (IP) with anti-lamin B from human dPMNs that were pretreated without or with PKC inhibitor Go6976 for 1 h, and then treated by PMA (B) for 3 h.(C) Confocal microscopy images of human dPMNs that were pretreated without or with PKCα Go6976 for 1 h, and then treated without or with PMA for 3 h, followed by staining of lamin B (primary anti-lamin B, and FITC-labeled secondary antibody), and phosphorylated PKCα (primary anti-human p-PKCαS657, and PE-labeled secondary antibody). The green/white arrows indicate the site of nuclear envelope rupture. Scale bars, 10 μm (C).(E) The endpoint analysis of % cells with NET formation was detected with dPMNs that were transfected with plasmids of either wildtype lamin B (WT control), or mutants with single or multiple defined point mutations at PKCα-consensus-phosphorylation sites (S395A, S405A, S408A) of lamin B, and treated for 3 h by 10 μM PAF in medium containing cell-permeable dye SYTO Red (500 nM) for the total cell count, while the cells with NET formation were stained by cell impermeable dye SYTOX Blue (5 μM). Then the images were taken with Olympus confocal microscopy, followed by automated quantification of NETs using ImageJ for quantification of % cells with NET formation. percentage of cells with NET formation by immunofluorescent imaging quantification using ImageJ (E)
Figure 6(A) Summary and representative immunoblots of PKCα expressions in mouse bone marrow neutrophils from PKCα-/-, PKCα+/-, and their littermate WT (PKCα+/+) mice. Vinculin served as loading control.(B) Representative immunoblot (IB) detection of the phospho-lamin B (Ser) and total lamin B with lamin B protein purified by immunoprecipitation (IP) with anti-lamin B from mouse peritoneal mPMNs from WT vs PKCα-/- mice, stimulated without or with PAF for 3 h.(C) Summary analyses of NET formation in peritoneal mPMNs, from WT, PKCα+/-, or PKCα-/- mice, which were treated without or with either 5 µM or 10 µM PAF for 3 h following by 2% PFA fixation and fluorometric microplate analysis.(D) The endpoint analysis of NET-DNA release index was detected by coincubation of primary mouse peritoneal mPMNs from WT and PKCα-/- mice without (control) or with 10 µM PAF in medium containing 1 μM Sytox Green dye with recording by a microplate reader at the end of the 3 h time point. The NET-DNA release index was reported in comparison to an assigned value of 100% for the total DNA released by neutrophils lysed by 0.5% (v/v) Triton-X-100.(E, F) (E) Representative and (F) summary analysis of NET formation of mouse peritoneal mPMNs from WT vs PKCα-/- mice stimulated without or with 10 µM PAF for 3 h, and stained with both cell permeable SYTO Red dye and cell impermeable Sytox Green dye, without fixation. Images were taken by Olympus confocal microscopy, followed by automated quantification of NETs on 5-6 non-overlapping area per well using ImageJ for calculation of % cells with NET formation. (E) Scale bars, 50 μm. % cells with NET formation by image analysis using ImageJ (F)
Figure 7(A,B) representative analysis of confocal fluorescent microscopy images of neutrophils with NET formation in the skin tissue of WT (A) vs Lmnb1TG (B) mice with UVB exposure, in which DNA was stained by DAPI, citrullinated histone H3 was probed by rabbit anti-mouse citrullinated Histone H3, following stained by Alexa Fluor-488 labeled donkey anti-rabbit secondary antibody, while neutrophil surface marker Ly6B was probed by rat anti-mouse Ly6B Ab following stained by Alexa Fluor-647 conjugated goat anti-rat secondary antibody. The images of different staining and their overlays are shown (A,B). The parental neutrophils (stained by neutrophil membrane surface marker Ly6B) and their released extracellular NET structures (co-stained by anti-cit H3 and DAPI) are indicated by red arrows and light blue arrows respectively. The white arrows indicated neutrophils without NET release. Scale bar, 50 µm.(C) summary analysis of confocal fluorescent microscopy images of neutrophils with NET formation in the skin tissue of WT (A) vs Lmnb1TG (B) mice with UVB exposure, in which DNA was stained by DAPI, citrullinated histone H3 was probed by rabbit anti-mouse citrullinated Histone H3, following stained by Alexa Fluor-488 labeled donkey anti-rabbit secondary antibody, while neutrophil surface marker Ly6B was probed by rat anti-mouse Ly6B Ab following stained by Alexa Fluor-647 conjugated goat anti-rat secondary antibody. The images of different staining and their overlays are shown (A,B). The parental neutrophils (stained by neutrophil membrane surface marker Ly6B) and their released extracellular NET structures (co-stained by anti-cit H3 and DAPI) are indicated by red arrows and light blue arrows respectively. The white arrows indicated neutrophils without NET release. Scale bar, 50 µm.(D,E) Summary analysis for staining area of neutrophils with NET formation and their exhibition of IL-17A (D) or TNFα (E), in the skin tissue of WT vs Lmnb1TG mice without (sham) or with UVB exposure, by co-staining of Ly6B (stained as described in panels A-C) with IL-17A (D) or TNFα (E) using FITC-conjugated rat anti-mouse IL-17A, or FITC conjugated rat anti-mouse TNFα Abs.
Figure 1A Macroscopic seedling phenotype of 12-day-old b16b18CRISPR, quadriCRISPR F33#1/#6, pentaCRISPR and amiR-2572, compared to WT (Col-0).E Macroscopic seedling phenotype of 12-day-old quadriCRISPR B64 compared to WT (Col-0) and amiR-2572. Scale bars = 1 cm. F, G Boxplots showing the quantification of primary root length (F) and LR density (G) in seedlings depicted in E. n = 12 (Col-0), 13 (quadriCRISPR B64), 11 (amiR-2572). D
Figure 2C Confocal images of root tips in 5-day-old Col-0, amiR-2572 and syn-tasi-1522A#1 seedlings. LRC cells were indicated by white asterisks. The distal LRC cells were indicated by white arrowsG Macroview stereo microscopic view of DR5:VENUS expression in root tips of 3-day-old WT, amiR-2572 and syn-tasi-1522A#1 seedlings, red arrows indicate DR5 stripes in the lateral root cap.
Figure 3A Co-localisation of YFP-ABCB15 with Propidium Iodide (PI) in root epidermal cells of 3-day-old seedlings. A plot of the fluorescence intensity of YFP and PI along the dashed lines shows the colocalization of the YFP and PI intensity peaks.C IAA export assay. Export of [3H]-IAA, assayed in parallel from tobacco mesophyll protoplasts expressing ABCB1, ABCB15-22 and ABCB17P980G against vector control. mean ± SE; n = 26 (vector control), 44 (ABCB1), 5 (ABCB15), 4 (ABCB16), 9 (ABCB17), 5 (ABCB18), 9 (ABCB22) and 8 (ABCB17P980G),transport experiments generated from independent tobacco transfections.
Figure 4B Analysis of DR5::VENUS expression in the root elongation zone of 4-day-old pWOX5:XVE>>YUC1-2A-TAA1, in Control and amiR-2572 treated with β-estradiol (5 µM) for 0, 7.5 and 9h. Images are composed of several tiles generated in a single snap with automatic assembly, PI in gray. The zoomed images of the yellow squares are presented below each root showing the accumulation of the DR5::VENUS signal in the elongation zone.
Figure 5A, B Expression pattern of proABCB15:NLS-GFP-GUS, proABCB16:NLS-GFP-GUS, proABCB17:NLS-GFP-GUS, proABCB18:NLS-GFP-GUS, and proABCB22:NLS-GFP-GUS expression in roots of 3-day-old seedlings, using confocal microscopy showing longitudinal overview pictures (Propidium iodide in magenta), and images zoomed on the epidermis and LRC corresponding to yellow squares (A); cytological sections of GUS stained roots of 3-day-old seedlings, counterstained with ruthenium red (B). Scale bars represent 20 µm for both graphs.
Figure 6A Fluorescence of YFP-ABCB17 in the root meristem and leaf in 3-day-old F1 crosses with WT, syn-tasi-1522A#1 and amiR-2572, propidium iodide (PI) in magenta. Red arrows highlight the position of the epidermis . Scale bars = 50 µm. B Schematic representation of root geometry with the indication of regions of interest for YFP-ABCB17 signal quantification. Red (Stele), and black (epidermis/LRC). C, D Quantification of YFP-ABCB17 fluorescence intensity in the stele (C) and epidermis/LRC (D) of A, measured at regions of interest corresponding tG,H Quantification of the oscillation period (G) and amplitude (H) of DR5::LUC in 3-day-old WT and syn-tasi-1522A#1, n= 27 (WT) and 23 (syn-tasi-1522A#1).
Figure 1Kaplan-Meier analysis showing cases from the Australian cohort (n = 73) delineated on the basis of expression of a set of hazardous genes, termed PC-1. Patients with the highest expression had a significantly poorer prognosis (red line, median survival: 11.6 months) compared with those patients with the lowest expression (blue line, median survival: 34.4 months, P = 0.01). The black line shows those with medium expression.Kaplan-Meier analysis showing that cases in the Australian cohort that fell in the highest quartile of a hypoxia signature (red line, median survival: 11.4 months) have significantly decreased survival compared with those in the lowest quartile (blue line, median survival: 25.2 months; P = 0.03).Kaplan-Meier analysis showing that cases in the APGI cohort (n = 266) with high LOX expression above the 3rd quantile (red line) have significantly decreased survival compared to those with low expression below the 1st quantile (blue line).Kaplan-Meier analysis showing that cases in the Glasgow cohort with high LOX expression (red line, n = 24) have significantly decreased survival compared with those with low expression (blue line, n = 23; P = 0.005).Kaplan-Meier analysis showing that fibrillar collagen is significantly associated with reduced survival in human PDAC (20 months vs. 28.3 months, P = 0.033).Mean decay distance of the second harmonic generation (SHG) signal emitted by human PDAC-associated collagen. Mean decay distance is represented by boxplots showing the second and third quartile of the data with the whiskers indicating the maximum and minimum data points. Outliers are indicated by individual markers. Stage T3 tumors have a higher collagen mean decay distance score compared with Stage T2 tumors (P = 0.02). Lymph node-positive tumors have a higher collagen mean decay distance score vs. lymph node-negative tumors (P = 0.047). Tumors showing vascular invasion have a higher collagen mean decay distance score than non-vascular invasive tumors (P = 0.037).
Figure 2PC-1 signature is predictive of metastatic disease in mouse models of pancreatic cancer. Log-transformed expressions of signature transcripts from mouse tumor microarrays were mean-centered across samples and scaled to unit variance. These values were then multiplied by the matching loading values from the PC-1 signature and summarized for each sample across all transcripts to yield the risk score for that sample.Inverted invasion assays were performed with PDAC tumor cell lines from KPC and KPflC mice. Tumor cell lines bearing mutant p53R172H (KPC) invade significantly further than tumor cells with deletion of 1 copy of p53 (KPflC) (P ≤ 0.01). Data are shown as the average of four wells + SEM.Introduction of shRNA targeting Lox into KPC tumor cells significantly inhibits invasion (P ≤ 0.01 by unpaired Student's t-test). Data are shown as the average of four wells + SEM.Introduction of exogenous LOX into KPflC tumor cells significantly promotes invasion (left panel, P ≤ 0.01 by unpaired Student's t-test). LOX expression was assessed by immunoblotting (right panel). Columns indicate the mean of four well and error bars indicate SEM.
Figure 3A Representative fluorescence images showing the SHG signal from cross-linked collagen in untreated, LOX antibody-treated or isotype control-treated organotypic cultures of primary fibroblasts and rat tail fibrillar collagen I.B Chart showing the percentage of cross-linked collagen by depth, based on SHG signal, in organotypic matrices treated as indicated. Error bars indicate SEM.C Barchart showing total cross-linked collagen in organotypic matrices treated as indicated. The experiment was performed in triplicate with three different zones imaged for 80 μm, at 2.5-μm sections each. Data are shown as total pixels ± SEM.D Kaplan-Meier (non-parametric) survival curve showing significantly extended tumor-free survival of KPC mice treated with LOX antibody (1 mg/kg i.p., twice weekly) + gemcitabine (100 mg/kg i.p., twice weekly) (green line, n = 17), compared with gemcitabine ± isotype control antibody-treated mice (blue line, n = 22, P = 0.014) or LOX antibody alone (red line, n = 9). Treatment was initiated when mice were 70 days old (randomization was not used when recruiting the mice) and the mice were treated twice weekly. Censored mice did not develop PDAC.E H&amp;amp;E-stained section of PDAC harvested from LOX + gemcitabine-treated KPC mouse. Note necrosis.F Boxplot showing quantification of necrosis in H&amp;amp;E sections of PDACs harvested from these mice, as indicated. At least 30 fields of view from at least five mice per cohort were scored.G-H H&amp;amp;E-stained sections of PDAC harvested from LOX + gemcitabine-treated KPC mice. Note stromal collapse (G) and marked dilation of blood vessels (H).I Representative H&amp;amp;E image showing a section of PDAC harvested from a control-treated KPC mouse.
Figure 4A Outer left panels: Immunohistochemistry analysis of macrophage infiltration (by F4/80 staining) in tumors from isotype control + gemcitabine-treated KPC mice vs. LOX antibody + gemcitabine-treated KPC mice. Inner left panels: Immunohistochemistry analysis of neutrophil infiltration (by MPO staining) in tumors from isotype control + gemcitabine-treated KPC mice vs. LOX antibody + gemcitabine-treated KPC mice. Inner right panels: Immunohistochemistry analysis of tumorvasculature (by CD31 staining) in tumors from isotype control + gemcitabine-treated KPC mice vs. LOX antibody + gemcitabine-treated KPC mice. Outer right panels: Immunohistochemistry analysis of tenascin C expression in tumors from isotype control + gemcitabine-treated KPC mice vs. LOX antibody + gemcitabine-treated KPC mice.B-D Plots showing quantification of macrophage infiltration (B), neutrophil infiltration (C) and tumorvasculature (D) in tumors from KPC mice treated as indicated. At least 30 fields of view from at least four mice per cohort were scored, and scoring was conducted blind. P-values were calculated using Mann-Whitney U-test and median is indicated by horizontal lines.E Correlation of LOX protein with tenascin C expression in 47 cases of PDAC (Spearman's rho correlation coefficient = 0.61; P < 0.0001).
Figure 4(C) Western blot analysis of cells transfected with 10 nM siRNA against ERK1, ERK2 or a 5 nM combination of each (ERK1+2).
Figure 1(A) Dynamic regulation of fluorescently tagged Beta-catenin/Armadillo (Arm-GFP) during mitosis in the growing fly wing epithelium. Notice down-regulation of Arm-GFP as cells round up for mitosis (arrow). Scale bar ~2µm. n>10 independent biological replicates.(B) Dynamic regulation of fluorescently tagged E-cadherin (E-cad-GFP) during mitosis in the growing fly wing epithelium. Notice down-regulation of E-cad-GFP as cells round up for mitosis (arrow). Scale bar ~2µm. n>10 independent biological replicates.(C) E-cad-GFP remains downregulated in cells arrested in mitosis with Colchicine. Scale bar ~2µm. n>10 independent biological replicates.(D) Quantification of the degree of down-regulation of Arm-GFP and E-cad-GFP at the junction between mitotic cells and their interphase neighbours (n > 10 independent samples per cell cycle stage). Mean +/- 1 S.D. shown.(E) Two adjacent mitotic cells show no detectable Arm-GFP at the junction between them. Scale bar ~2µm.(F-I) Electron microscopy cross-sections of wing epithelial cells at interphase, prophase, prometaphase and telophase. Notice adherens junctions (dark staining, highlighted in insets) are downregulated as cells round up for mitosis. Scale bars ~1µm (low mag.) and ~10nm (high mag.). n>10 independent biological replicates. Asterisks indicate a single mitotic cell. Green arrowheads indicate adherens junctions.
Figure 2(A) Phosphorylated Myosin-II Regulatory Light Chain (p-MLC; purple) detected by antibody staining reveals high levels around the cortex of rounded mitotic cells in wild-type wing epithelial cells in the anterior (A) compartment, but not in Rho-kinase (Rok) RNAi expressing cells of the posterior (P) compartment (GFP-positive; green). Scale bar ~10µm. n>10 independent biological replicates.(B) High-magnification view of single mitotic cell stained for p-MLC (purple) and E-cadherin (green), with metaphase plate chromosomes stained by DAPI (blue). Scale bar ~1µm. n>10 independent biological replicates. (C) High-magnification view of single UAS.Rok-RNAi expressing mitotic cell stained for p-MLC (purple) and E-cadherin (green), with metaphase plate chromosomes stained by DAPI (blue). Note loss of cortical p-MLC staining (purple). Scale bar ~1µm. n>10 independent biological replicates. (D) Expression of constitutively active Rho-kinase (UAS.Rok-CA) in the posterior compartment of the wing epithelium is sufficient to elevate p-MLC and reduce E-cadherin immunostaining. Zoom (right) shows high p-MLC and low E-cad in both a mitotic cell and its neighbours. Scale bar ~10µm. n>10 independent biological replicates.(E) MyoII RLC-GFP (MyoII-GFP) accumulates at the cortex as cells round up for mitosis and later appears at the cleavage furrow during cytokinesis (basal section, diagrammed left). Treatment with the Rho-kinase inhibitor Y-27632 inhibits mitotic accumulation of MyoII-GFP. Quantification shown right (n = 8 independent samples per genotype). Scale bar ~1µm. Mean +/- 1 S.D. shown.(F) E-cad-GFP is downregulated as cells round up for mitosis (apical section, diagrammed left). Treatment with the Rho-kinase inhibitor Y-27632 inhibits mitotic downregulation of E-cad-GFP. Extended treatment with Y-27632 leads to a general defect in all interphase and mitotic cells in which apical surface areas enlarge and E-cad-GFP is generally lost. Arrow indicates mitotic cell cortex at maximal rounding. Quantification shown right (n = 6 independent samples per genotype; mean +/- 1 S.D. shown). Scale bar ~1µm.
Figure 3(A) Nuclear localised Pbl-GFP becomes cytoplasmic in mitotic cells, co-incident with Rok-GFP relocalisation to the plasma membrane. Scale bar ~1µm. n > 5 independent biological replicates.(B) Phosphorylated Myosin-II Regulatory Light Chain (p-MLC; purple) detected by antibody staining reveals high levels around the cortex of rounded mitotic cells in wild-type wing epithelial cells, but not those expressing UAS.pbl-RNAi. Phospho-Histone H3 (pH3) staining (green) marks mitotic cell chromosomes. Quantification shown right (n > 10 independent samples per genotype; mean +/- 1 S.D. shown). Scale bar ~1µm.(C) A stripe of expression of ptc.Gal4 UAS.pbl-RNAi in the wing disc leads to both enlarged cells and many basally extruded cells that undergo apoptosis, marked by pyknotic nuclei and loss of aPKC/Dlg staining. Scale bars ~20µm. n > 6 independent biological replicates.
Figure 4(A) Nuclear localised Tum-GFP becomes cytoplasmic in mitotic cells, including a distinct plasma membrane localisation (arrows). Note also localisation to the cytokinetic ring (asterisk) and remnant mid-bodies/ring canals in interphase cells. Quantification shown on the right (n > 7 independent samples per genotype; mean +/- 1 S.D. shown). Scale bars ~2µm.(B) A stripe of expression of ptc.Gal4 UAS.tum-RNAi in the wing disc leads to basally extruded cells that undergo apoptosis, marked by Dcp1 immunostaining, similar to UAS.pbl-RNAi. Quantification shown on the right (n > 10 independent samples per genotype; mean +/- 1 S.D. shown). Scale bars ~20µm.(C) Phosphorylated Myosin-II Regulatory Light Chain (p-MLC; red) detected by antibody staining reveals high levels around the cortex of rounded mitotic cells in wild-type wing epithelial cells, but not those cells homozygous mutant for tum347, marked by expression of GFP in single-celled clones (MARCM system). pH3 staining (blue) marks mitotic cell chromosomes. Arrow indicates a GFP-positive single cell tum347 mutant clone. Quantification shown on the right (n > 3 independent samples per genotype; mean +/- 1 S.D. shown). Scale bars ~20µm.
Figure 5(A) Phosphorylated Myosin-II Regulatory Light Chain (p-MLC; purple) detected by antibody staining reveals high levels around the cortex of rounded mitotic cells (pH3, red) in wild-type wing discs, and aurA homozygous mutant wing discs, but not upon inhibition of both AurA and AurB by treatment with VX-680. Note increased numbers of mitotic cells in aurA homozygous mutant wing discs, due to delayed mitotic progression. Scale bars ~20µm (low mag.) and ~1µm (high mag.). n > 15 independent biological replicates.(B) Live-imaging of MyoII-GFP reveals delayed mitosis in aurA homozygous mutant wing discs, while inhibition of both AurA and AurB by treatment with VX-680 leads to complete loss of mitotic rounding and MyoII-GFP membrane localisation. Asterisks indicate a single mitotic cell. Scale bars ~1µm. Quantification shown on the bottom right (n = 5 independent samples per genotype).(C) Live-imaging of E-cad-GFP reveals delayed mitosis in aurA homozygous mutant wing discs, cytokinesis failure in UAS.aurB-RNAi expressing wing discs, and complete failure of mitotic rounding and E-cad-GFP downregulation upon inhibition of both AurA and AurB by treatment with VX-680. Asterisks indicate a single mitotic cell. Scale bars ~1µm. Quantification shown on the bottom right (n = 9 independent samples per genotype).
Figure 7(A) Live-imaging of MyoII-GFP in a control wing disc epithelium. Asterisk indicates the location of a single mitotic cell about to initiate rounding. Scale bar ~1µm. n > 5 independent biological replicates. (B) Live-imaging of MyoII-GFP upon treatment with the dual AurA/B inhibitor VX-680 after initiation of mitotic rounding, which rapidly arrests progression of rounding and prevents cytokinesis. Scale bar ~1µm. n > 9 independent biological replicates. (C) Live-imaging of E-cad-GFP upon treatment with the dual AurA/B inhibitor VX-680 after initiation of mitotic rounding, which rapidly arrests progression of rounding and prevents cytokinesis. Scale bar ~1µm. n > 6 independent biological replicates.