Journal: bioRxiv

Article Title: Membrane lipid composition and endocytosis modulate Wingless release from secreting cells

doi: 10.64898/2026.02.12.705585

Figure Lengend Snippet: (A) Total Wg and Wls immunoreactivity and GFP fluorescence from nkd-NeonGreen after schlank knockdown with hh-Gal4 . Conventional confocal micrographs are shown in A and super-resolution in A’-A’’. A’’ shows examples of WgLVs and large lumen-less punctae. The anterior-posterior boundary was recognised by anti-Ci staining ( blue line). (B) Total Wg distribution after schlank knockdown with wg-Gal4 . Gal4 activity is reported by myr-RFP. (C) Total Wg distribution after schlank knockdown in receiving cells. In preparations shown on the left , schlank RNAi is expressed throughout the posterior compartment with en-Gal4 . In the other columns, en-Gal4 is also present, but its activity is dampened in Wg-producing cells by Gal4DBDnMag ( middle ) or Gal80 ( right ), as outlined in C’ . Asterisks mark a late domain of en-Gal4 activity, recognised by faint UAS-RFP signal in the micrographs. Only incomplete schlank knockdown is achieved in this domain (see also FigS4D). (D) Signalling activity of Wnt3a-secreting L-cells treated with different concentrations of the ceramide synthase inhibitor FTY720. A summary of the assay is shown in D , and the results are shown in D’ . Bars indicate mean luciferase activity from SuperTopFlash for each condition. N = 3 independent replicates, with each symbol being the average of three technical replicates. Statistical test: one-way ANOVA with Welch correction and Dunnett’s T3 multiple comparisons test. Error bars indicate SD. (E) Extracellular Wg distribution after schlank knockdown with wg-Gal4 , with quantification along the apical-basal axis. Symbols indicate average signal along the apical-basal axis for all the wing discs analysed (N = 10 control and 11 knockdown discs), shading indicates SD.

Article Snippet: The following primary antibodies were used: mouse anti-Wingless (1:500, DSHB 4D4), rabbit anti-Wls (1:1000, generous gift from Konrad Basler, ( )), goat anti-GMAP (1:1000, DSHB GMAP), rabbit anti-HA (1:800, CST #3724), rat anti-DE-cadherin (1:50, DSHB DCAD2), mouse anti-Rab7 (1:10, DSHB Rab7-s), rat anti-Ci (1:100, DSHB 2A1-s) and mouse anti-Dlp (1:50, DSHB 13G8).

Techniques: Fluorescence, Knockdown, Staining, Activity Assay, Luciferase, Control

Journal: bioRxiv

Article Title: Membrane lipid composition and endocytosis modulate Wingless release from secreting cells

doi: 10.64898/2026.02.12.705585

Figure Lengend Snippet: (A) Total Wg distribution after dlp inactivation ( left), schlank knockdown ( right ) or both ( middle ) in the vg-Gal4 domain. (B) Total Wg (from SNAP-Wg labelled with SNAP-TMR) and Dlp (from immunofluorescence) after schlank knockdown under the control of hh-Gal4 . Anti-Ci marks the anterior compartment. Both WgLVs and Wg punctae appear in the schlank knockdown compartment while only WgLVs are seen in the control compartment. Dlp was detectable in some but not all WgLVs and in some but not all the aggregates.

Article Snippet: The following primary antibodies were used: mouse anti-Wingless (1:500, DSHB 4D4), rabbit anti-Wls (1:1000, generous gift from Konrad Basler, ( )), goat anti-GMAP (1:1000, DSHB GMAP), rabbit anti-HA (1:800, CST #3724), rat anti-DE-cadherin (1:50, DSHB DCAD2), mouse anti-Rab7 (1:10, DSHB Rab7-s), rat anti-Ci (1:100, DSHB 2A1-s) and mouse anti-Dlp (1:50, DSHB 13G8).

Techniques: Knockdown, Immunofluorescence, Control

Journal: bioRxiv

Article Title: Membrane lipid composition and endocytosis modulate Wingless release from secreting cells

doi: 10.64898/2026.02.12.705585

Figure Lengend Snippet: Total Wg (single z- slices) and naked-NeonGreen (maximum intensity projections) in discs expressing schlank RNAi alone, or in combination with Dlp-HA or Dlp MMCC -HA (no lipid binding activity), all under the control of en-Gal4. Magenta line shows compartment boundary, recognised by anti-Ci staining. In the area marked with an asterisk, late activation of en-gal4 is sufficient to trigger Dlp expression but not to appreciably knock down schlank . Therefore, three conditions are created in the discs shown in the middle and right columns: wild type, near wild type schlank activity with overexpressed Dlp variants, and schlank knockdown with overexpressed Dlp variants.

Article Snippet: The following primary antibodies were used: mouse anti-Wingless (1:500, DSHB 4D4), rabbit anti-Wls (1:1000, generous gift from Konrad Basler, ( )), goat anti-GMAP (1:1000, DSHB GMAP), rabbit anti-HA (1:800, CST #3724), rat anti-DE-cadherin (1:50, DSHB DCAD2), mouse anti-Rab7 (1:10, DSHB Rab7-s), rat anti-Ci (1:100, DSHB 2A1-s) and mouse anti-Dlp (1:50, DSHB 13G8).

Techniques: Expressing, Binding Assay, Activity Assay, Control, Staining, Activation Assay, Knockdown

Journal: medRxiv

Article Title: Early Fc-effector antibody signatures impact COVID-19 disease trajectory

doi: 10.64898/2026.02.18.26346542

Figure Lengend Snippet: Box-and-whisker plots showing (A) the binding antibodies titers against SARS-CoV-2 S1, RBD and S2 spike antigens (B) the ratios between S1/S2 and RBD/S2 binding titers and (C) the Fc-receptor antibody-mediated ADCC and ADCP activities against SARS-CoV-2 full-length spike in mild and severe COVID-19 patients. Box indicates interquartile range (IQR, Q1-Q3), with horizontal lines showing the median and vertical lines indicating minimum and maximum. Mann-Whitney U test was performed to compare differences between mild vs. severe patients at each time point. Statistical significance was considered when p ≤ 0.05. D) Heatmap of Spearman correlation matrices between SARS-CoV-2 antibody titers (ADCC, ADCP, nAb and IgG binding titers against S, S1, S2 and RBD) at days 0, 3, 7 and 46 post-recruitment. Statistically significant correlations in the underlined intersections are indicated with asterisk (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, ∗∗∗∗p < 0.0001). E) Spearman correlations between binding IgG antibodies against S1, RBD or S2 domains and functional ADCC (blue) or ADCP (purple) antibodies at each timepoint. Each dot represents a sample. Shown are the Spearman r coefficient, 95% confidence interval (CI) and p value (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, ∗∗∗∗p < 0.0001, ns, not significant). Data is also shown in Supplementary Table 2.

Article Snippet: All recombinant proteins used in this study were purchased from Sino Biological: SARS-CoV-2 full-length spike (S) protein (Cat. #40589-V08H4), seasonal HCoV-OC43 full-length S (Cat. #40607-V08B), seasonal HCoV-229E full-length S (Cat. #40605-V08B), SARS-CoV-2 S1 domain (Cat. #40591-V08H), SARS-CoV-2 S2 domain (Cat. #40590-V08H1), SARS-CoV-2 RBD subdomain (Cat. #40592-V08H80), HCoV-OC43 S1 domain (Cat. #40607-V08H1) and HCoV-OC43 S2 domain (Cat. #40607-V08B1).

Techniques: Whisker Assay, Binding Assay, MANN-WHITNEY, Functional Assay

Journal: medRxiv

Article Title: Early Fc-effector antibody signatures impact COVID-19 disease trajectory

doi: 10.64898/2026.02.18.26346542

Figure Lengend Snippet: A) Heatmap of FcγR-binding antibody responses to SARS-CoV-2 S antigens in mild and severe COVID-19 patients. Binding activity of antibodies to FcγRs was measured for SARS-CoV-2 full-length S, S1 and S2 antigens at days 0, 3, 7, and 46 post-recruitment. Box-and-whisker diagrams showing (B) FcγR2AH and FcγR2AR-binding antibody responses (C) FcγR3AV and FcγR3AF-binding titers, (D) functional monocyte antibody-dependent cellular phagocytosis (ADCP) responses and (E) functional antibody-dependent neutrophil phagocytosis (ADNP) responses against SARS-CoV-2 full-length S, S1 and S2 antigens in mild and severe COVID-19 patients. Box indicates interquartile range (IQR, Q1-Q3), with horizontal line showing the median and vertical lines indicating minimum and maximum. Mann-Whitney U test was performed to compare differences between mild vs. severe patients at each time point. Statistical significance was considered when p ≤ 0.05. F) PCA of antibody responses according to day of recruitment (day 0: blue; day 3: red; day 7: green and day 46: purple). Empty circles represent mild cases, and filled circles represent severe cases. Ellipses show 95% confidence regions. G) Spider plot of the antibody landscape (IgG antibody titers, FcγR-binding activity and FcγR-effector functions) in mild and severe COVID-19 patients. Median percentile for each antibody feature is shown at each timepoint and for each SARS-CoV-2 S antigen.

Article Snippet: All recombinant proteins used in this study were purchased from Sino Biological: SARS-CoV-2 full-length spike (S) protein (Cat. #40589-V08H4), seasonal HCoV-OC43 full-length S (Cat. #40607-V08B), seasonal HCoV-229E full-length S (Cat. #40605-V08B), SARS-CoV-2 S1 domain (Cat. #40591-V08H), SARS-CoV-2 S2 domain (Cat. #40590-V08H1), SARS-CoV-2 RBD subdomain (Cat. #40592-V08H80), HCoV-OC43 S1 domain (Cat. #40607-V08H1) and HCoV-OC43 S2 domain (Cat. #40607-V08B1).

Techniques: Binding Assay, Activity Assay, Whisker Assay, Functional Assay, MANN-WHITNEY

Journal: Nucleic Acids Research

Article Title: A novel dual histone mark reader ZCWPW2 regulates meiotic recombination through lactylation and transcriptional regulation in humans and mice

doi: 10.1093/nar/gkag049

Figure Lengend Snippet: ZCWPW2 shows enhanced enrichment at sites co-marked by H3K4me3 and H3K36me3 in the presence of PRDM9 and is found in complex with ZCWPW1 at these sites. ( A ) Schematic overview of CUT&Tag profiling of ZCWPW2 genomic binding sites in HEK293T cells transfected with Flag- ZCWPW2 (W2) alone or co-transfected with Myc- PRDM9 B . ( B ) Pie charts showing the genomic annotation of ZCWPW2 (W2) binding peaks in HEK293T cells transfected with Flag- ZCWPW2 alone (left) or co-transfected with Myc- PRDM9 B (right). ( C ) Bar graph showing the percentage of the top 10 000 ZCWPW2 (W2) or ZCWPW1 (W1) peaks overlapping with PRDM9-binding sites in the presence or absence of PRDM9. ( D ) Line plot showing ZCWPW2 (W2) binding signal centered around PRDM9 binding motifs (±3 kb) in HEK293T cells expressing Flag-ZCWPW2 with or without Myc-PRDM9. ( E ) Heatmaps and average signal plots showing ZCWPW2 (W2) enrichment centered on PRDM9-binding peaks (±2 kb) in HEK293T cells transfected with Flag- ZCWPW2 alone, co-transfected with Myc- PRDM9 B , or IgG control. ( F ) Venn diagram showing the overlap among ZCWPW2 (W2), ZCWPW1 (W1), and PRDM9 peaks in HEK293T cells co-expressing Myc-PRDM9. ( G ) Genome tracks snapshot showing representative genomic regions with binding profiles of ZCWPW2 (W2), ZCWPW1 (W1), and PRDM9 in HEK293T cells. ( H ) Genome track snapshots showing ZCWPW2 (W2) signals (green) in HEK293T cells co-expressing Flag-ZCWPW2 and Myc-PRDM9, and ZCWPW2 (W2) signals (blue) in cells expressing Flag-ZCWPW2 alone, together with tracks for PRDM9-induced H3K4me3 (pink) and H3K36me3 (orange). ( I ) ZCWPW2 peaks at H3K4me3/H3K36me3 sites in HEK293T cells co-expressing Flag-ZCWPW2 and Myc-PRDM9, as well as in cells expressing Flag-ZCWPW2 alone. ( J ) Co-IP assays were performed in HEK293T cells co-transfected with HA- ZCWPW1 (W1) and Flag- ZCWPW2 (W2). (K and L) Co-IP assays were performed on human ( K ) and mouse ( L ) testis lysates to detect endogenous interactions between ZCWPW1 (W1) and ZCWPW2 (W2). ( M ) Schematic overview showing full-length ZCWPW2 ( W2 ) and ZCWPW1( W1 ), along with their domain-deletion variants lacking either the zf-CW domain (ΔC), the PWWP domain (ΔP), or both (ΔC-ΔP), were generated and were co-transfected in HEK293T cells. ( N ) Co-IP analysis showing the interaction between full-length ZCWPW1 (W1) and full-length or domain-deletion variants of ZCWPW2 (W2). ( O ) Co-IP analysis of ZCWPW2 containing the PWWP domain (W2-ΔC) and full-length or domain-deletion variants of ZCWPW1 (W1) in HEK293T cells. Data for ZCWPW1 ChIP-seq in HEK293T cells, either transfected alone or co-transfected with PRDM9, were obtained from the GEO repository under accession number GSE141516 . ChIP-seq data for PRDM9 in HEK293T cells were retrieved from GEO accession GSE99407 .

Article Snippet: Cells were treated with 20 mM lactate (MedChemEpress, HY-B2227) for 14 h. Full-length cDNAs of ZCWPW1, ZCWPW2, PRDM9 B , SYCP1, HSPA2, SYCE1, SPATA22, TEX11, MLH1, MSH2, LDHA , or MDC1 were synthesized and cloned into pcDNATM3.1(+) vectors with Flag, HA, or Myc tags by the commercial biotechnology companies PAIVIBIO (China) and TSINGKE (China).

Techniques: Binding Assay, Transfection, Expressing, Control, Co-Immunoprecipitation Assay, Generated, ChIP-sequencing

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A . Schematic representation of DDX3X protein showing pathogenic mutations identified in DDX3X syndrome patients (bold- multiple occurrences, blue- polymicrogyria, brown- male patients). B . Schematic representation of DDX3X functional domains indicating critical DDX3X syndrome-associated mutations selected based on their predicted structural impact. Blue, RNA binding sites; Red, ATP binding and hydrolysis regions; Magenta, regions of interaction between ATP binding and RNA binding residues. C . Ribbon structural representation of DDX3X (dark grey) bound to dsRNA (red) (PDB ID: 6O5F), displaying surface accessibility and RNA interface proximity of DDX3X syndrome mutations. Mutated residues are color-coded in the represented structure. D . Heat map depicting the AlphaMissense prediction for the likely pathogenicity of selected DDX3X syndrome missense mutations, with dark red being the likely pathogenic and white being the likely benign mutation. E . Table depicting selected mutations in DDX3X that have been associated with different cancer types. F . Immunoblotting analysis of DDX3X showing the impact of DDX3X syndrome mutations on protein expression in Neuro2a cells. G . Fluorescence images of N2a cells expressing DDX3X-mCherry with DDX3X syndrome mutations, captured using Incucyte imager.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Functional Assay, RNA Binding Assay, Binding Assay, Mutagenesis, Western Blot, Expressing, Fluorescence

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A . Immunoblot analysis showing levels of DDX3X protein in HeLa WT & Ddx3x -/- cells. B . Representative confocal microscopy images of HeLa cells expressing WT or mutant DDX3X-mCherry constructs and subjected to SA (200µM) stress and immunostained for stress granule marker G3BP1 (green) and DAPI (blue). Scale bar=10µm. C-E . Quantification of numbers of DDX3X (red), G3BP1 (green), and DDX3X-G3BP1 (yellow) granules per cell quantified from ≥50 cells across three independent experiments exhibiting DDX3X colocalising with stress granules in HeLa cells. ****p < 0.0001, ***p = 0.0008 (DDX3X granules/cell), **p = 0.0022 (WT vs I190S), **p = 0.0028 (WT vs T323I), **p = 0.0031 (WT vs L556S) (G3BP1 granules/cells), ****p < 0.0001, **p = 0.0034 (G3BP1-DDX3X colocalised granules/cells) (One-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Western Blot, Confocal Microscopy, Expressing, Mutagenesis, Construct, Marker

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A. Representative confocal images of N2a cells expressing WT or mutant DDX3X-mCherry subjected to SA (100µM) stress for 2 hours and immunostained for stress granule marker G3BP1 (green) and DAPI (blue). Scale bar=10µm. B-D . Quantification of numbers of DDX3X (red), G3BP1 (green) and DDX3X-G3BP1 (yellow) granules per cell from ≥ 30cells across three independent experiments exhibiting DDX3X colocalising with stress granules in N2a cells. ****p < 0.0001, ***p = 0.0003, *p = 0.0181 (DDX3X granules/cell), ****p < 0.0001, ***p = 0.0001 (WT VS T198P), ***p = 0.0003 (WT vs L559H),**p = 0.0016 (G3BP1 granules/cells), ****p < 0.0001, ***p = 0.0001, **p = 0.0013 (WT vs I190S), **p = 0.0024 (WT vs L559H) (G3BP1-DDX3X colocalised granules/cells) (One-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Expressing, Mutagenesis, Marker

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A . Schematic showing the protocol used for monitoring persistent granules in cells. Cells were treated with sodium arsenite (SA), followed by removing SA and supplementing fresh media (wash-off, recovery period) to monitor persistent granules. B . Representative confocal microscopy images of HeLa cells expressing WT or mutant DDX3X-mCherry showing stress granules (SGs) upon SA treatment and after wash-off (recovery), immunostained for G3BP1 (green) and DAPI (blue). Scale bar = 10µm. C-D . Quantification of the number of DDX3X (red) and DDX3X-G3BP1 (yellow) granules per cell from ≥ 30 cells across three independent experiments to monitor the formation of persistent DDX3X-SGs due to DDX3X syndrome mutations in HeLa cells. ****p < 0.0001, ***p = 0.0002, **p = 0.0073 (WT vs WT-WO), **p = 0.0046 (R475G vs R475G-WO), ns = not significant (DDX3X granules/cell), ****p < 0.0001, ***p = 0.0001, **p = 0.0096 (G3BP1-DDX3X granules/cell) (one-way ANOVA test). Data shown are mean ± SEM. E . Representative confocal microscopy images of N2a cells expressing WT or mutant DDX3X-mCherry showing SGs upon SA treatment and after wash-off (recovery), immunostained for G3BP1 (green) and DAPI (blue). Scale bar = 10µm. F-G . Quantification of the number of DDX3X (red) and DDX3X-G3BP1 (yellow) granules per cell from ≥ 50 cells across three independent experiments to monitor the formation of persistent DDX3X-SGs due to DDX3X syndrome mutations in N2a cells., ***p = 0.0006, **p = 0.0033 (WT vs WT-WO), **p = 0.0020 (F182V vs F182V-WO), ns = non-significant (DDX3X granules/cell), ****p < 0.0001, ***p = 0.0003 (G3BP1-DDX3X granules/cell) (One-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Confocal Microscopy, Expressing, Mutagenesis

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A . Real-time time-lapse confocal images of HeLa cells expressing WT or mutant DDX3X-mCherry and subjected to SA (200µM) stress for 2 hours. A single SG (indicated by white dashed circle, as the region of interest) was photobleached and fluorescence recovery was recorded over 180s using confocal microscopy. B . The relative fluorescence intensity of mCherry (tagged to DDX3X) in SGs in HeLa cells before and after photobleaching as a function of time. Curves are representative of four independent experiments. C. Real-time time-lapse confocal images of N2a cells expressing WT or mutant DDX3X-mCherry and subjected to SA (100µM) stress for 2 hours. A single SG (indicated by a dashed circle, as the ROI) was photobleached, and fluorescence recovery was recorded over 150s using confocal microscopy. D. The relative fluorescence intensity of mCherry (tagged to DDX3X) in SGs in N2a cells before and after photobleaching as a function of time. Curves are representative of five independent experiments.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Expressing, Mutagenesis, Fluorescence, Confocal Microscopy

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A. Schematic of the assay protocol to assess the effect of persistent SGs on global translation and cell death. B. Representative polysome profiles (A260 absorbance) of DDX3X syndrome mutants expressing N2a cell extracts treated with SA (100uM) followed by wash-off and recovery in SA-free media, indicating sedimentation (through 10%-50% sucrose gradient) of 40S & 60S ribosomal subunits, 80S monosomes and polysomes (n=3). C. Quantification of DDX3X-dependent mRNAs in the polysome fractions plotted as relative log2-fold change ratio of translated/untranslated fraction using gene-specific primers normalised to GAPDH (internal control). ****p < 0.0001, ***p = 0.0007 (WT vs L559H, RPL36A gene), ***p = 0.0002 (WT vs L559H, RPL13 gene), **p = 0.0034 (WT vs I190S, EIF3I gene), **p = 0.0024 (WT vs L556S, STAT1 gene), **p = 0.0035 (WT vs I190S, TOPBP1 gene), **p = 0.0016 (WT vs L556S, TOPBP1), **p = 0.00365 (WT vs F182V, GNB2 gene), *p = 0.0347 (One-way ANOVA). Data shown are mean ± SEM. D. Real-time cell death analysis by Sytox green staining of N2a cells expressing WT or mutant DDX3X-mCherry constructs treated with SA **p = 0.0079, *p = 0.0432 (WT vs I190S), *p = 0.0306 (WT vs L559H) (two-way ANOVA test). Data shown are mean ± SEM. E. Real-time cell death analysis by Sytox green staining of N2a cells expressing WT or mutant DDX3X constructs treated with Aβ peptide with or without SA treatment and wash off. ****p < 0.0001, ***p = 0.0004, **p = 0.0068 (two-way ANOVA test). Data shown are mean ± SEM. F. Cell death measurement by Sytox green staining of N2a cells expressing WT or mutant DDX3X treated with SA, followed by TNF and zVAD treatment. ****p < 0.0001, **p = 0.0020 (WT vs T198P), **p = 0.0038 (WT vs R480G), **p = 0.0053 (WT vs L556S), *p = 0.0182 (two-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Expressing, Sedimentation, Control, Staining, Mutagenesis, Construct

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A. Cell death measurement by Sytox green staining of N2a cells ectopically expressing WT or mutant DDX3X-mCherry. ns = non-significant (Two-way ANOVA test). Data shown are mean ± SEM. B. Cell death measurement by Sytox green staining of N2a cells ectopically expressing WT or mutant DDX3X-mCherry treated with TNF and zVAD. Ns = non-significant, (Two-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Staining, Expressing, Mutagenesis

Journal: bioRxiv

Article Title: DDX3X syndrome mutations lock DDX3X-RNA conformational states to drive persistent pathological condensation and neuronal death

doi: 10.64898/2026.01.29.702492

Figure Lengend Snippet: A . Schematic showing the protocol used for the cross-seeding kinetics of Aβ 1-42 aggregation by DDX3X seeds. B . Boltzmann fitting of the cross-seeding experiment depicting the co-aggregation kinetics of Aβ 1-42 when cross-seeded with sonicated seeds of DDX3X variants. C . Representative confocal images of N2a cells expressing WT or mutant DDX3X-mCherry, subjected to SA stress (100µM), wash-off, and recovery, followed by ThT staining and immunostained with DAPI (blue). ThT fluorescence is represented in green. Scale bar= 10µm. D-F . Quantification of numbers of DDX3X (red), ThT stained (green) and ThT-DDX3X (yellow) granules per cell from ≥ 20 cells across three independent experiments exhibiting DDX3X colocalization with ThT granules in N2a cells. ****p < 0.0001 (DDX3X granules/cell), ****p < 0.0001, ***p = 0.0005, **p = 0.0022 (WT vs I190S), **p = 0.0080 (WT vs T198P) (ThT granules/cells) ****p < 0.0001, ***p = 0.0003, **p = 0.0021 (WT vs I190S), **p = 0.0057 (WT vs T198P) (ThT-DDX3X colocalised granules/cells) (One-way ANOVA test). Data shown are mean ± SEM.

Article Snippet: Full length DDX3X-mCherry construct (pReceiver-M56-DDX3X-mCherry ) was procured from GeneCopoeia.

Techniques: Sonication, Expressing, Mutagenesis, Staining, Fluorescence