EMBO/SourceData huggingface dataset:
Figure 5A 22Rv1 cells were cultured in RPMI 1640 medium containing 10% CT-FBS and treated with or without 1 nM R1881 for 24 h and were then transfected with the indicated siRNAs. The cells were then cultured for 10 days. The colonies formed were stained and photographed.B Quantification of data from (A). Student's t-test was performed to analyze the statistical significance, n = 3. *P = 0.0003; **P < 0.0001. Error bars indicate SD.C 22Rv1 cells from Supplementary Fig S2 were subcutaneously implanted into both flanks of male nude mice (six mice per group). Tumor size was measured at the indicated time points. Student's t-test was performed to analyze the statistical significance, n = 10. *P = 0.037; **P = 0.039. Error bars indicate SEM.D Representative tumors from (C) right after resection at the final time point are shown.
Figure 6A LNCaP cells were transfected with either control or STAMP2-specific siRNA in the presence of 10−8 M R1881. RNA was isolated, and qPCR was used to determine ATF4mRNA levels. Student's t-test was used to analyze the statistical significance, n = 3. *P = 0.002. Error bars indicate SD.B Cell lysates from (A) were subjected to Western blot analysis.C, D ATF4 expression in LNCaP (C) and 22Rv1 (D) cells stably expressing control shRNA or shRNA against STAMP2 was analyzed by Western blot analysis.C, D ATF4 expression in LNCaP (C) and 22Rv1 (D) cells stably expressing control shRNA or shRNA against STAMP2 was analyzed by Western blot analysis.E ATF4 expression in xenografted tumors of 22Rv1 cells stably expressing control shRNA or shRNA against STAMP2 was analyzed by qPCR. Student's t-test was used to analyze the statistical significance, n = 4. *P = 0.022; **P = 0.015; ***P = 0.044. Error bars indicate SEM.F CWR22 xenografts were grown in nude mice, and tumors were collected at different times after castration. The association between ATF4 and STAMP2 in the tumor samples was determined by Western blot analysis.G The MSKCC Prostate Oncogenome cDNA microarray dataset was obtained from the cBio Cancer Genomics Portal. Analysis was performed as described in Materials and Methods. The expression levels of STAMP2 and ATF4, as well as two ATF4 target genes (ASNS and SLC7A11), are presented.
Figure 7A LNCaP cells were transfected with either control or ATF4 siRNA. Two days after transfection, cells were harvested and whole-cell lysates were made and used in Western blot analysis.B LNCaP cells were transfected with either control or ATF4 siRNA and were cultured for 2 weeks. The colonies formed were stained and photographed.C The area covered by the colonies on each plate in (B) was quantified and represented as percentage of the total area of the plate. *P = 0.0023.D Cell lysates of LNCaP cells stably expressing an empty vector (Vector) or a vector expressing ATF4 (ATF4) were prepared and subjected to Western blot analysis with the indicated antisera.E After transfection with the indicated siRNAs, cells from (D) were cultured for 2 weeks. The colonies formed were stained and photographed.F The area of the colonies in (E) was quantitated using an image analysis system and represented as percentage of the total area of the plate. *P = 0.024.G LNCaP cells were transfected with either control (Ctrl) or ASNS siRNA. The cells were then cultured for 2 weeks. The colonies formed were stained and photographed. Knockdown of ASNS was confirmed by Western blot analysis shown at the top.H Quantification of the data shown in (G). *P = 0.0087.
Figure 8A 293T cells were transfected with plasmids expressing either an empty vector (Vec) or vectors expressing HA-tagged STEAP, STAMP1 (ST1), STAMP2 (ST2), or STAMP3 (ST3). Whole-cell extracts were prepared and subjected to Western blot analysis using anti-HA antibody or GAPDH as a loading control.B Relative ferrireductase activities were measured in the cells expressing the different constructs used in (A) as described in Materials and Methods. *P < 0.0001.C 293T cells were transfected with different plasmids expressing either an empty vector (Vec) or vectors expressing His-tagged wild-type STAMP2 (WT) or three STAMP2 mutants (dGSR, H304L, or H397L) as indicated. Whole-cell extracts were prepared and used in Western blot analysis with anti-His antibody or GAPDH antibody as a loading control.D Relative ferrireductase activities were measured in the cells from (C) as described in Materials and Methods. *P = 0.0003.E 293T cell line with Dox-inducible STAMP2 expression or vector control was generated. Western blot analysis confirmed STAMP2 expression in a Dox-inducible manner.F The cells from (E) were either left untreated or treated with increasing amounts of Dox, and ferrireductase activity was determined. *P < 0.0001.G The cells with Dox-inducible STAMP2 expression from (E) were either left untreated or treated with Dox for 48 h. Prior to ferrireductase activity measurement, the cells were treated with or without DPI as indicated for 1 h. *P < 0.0001; **P = 0.0012; ***P = 0.048.H The cells from (E) were treated with 100 ng/ml Dox for 2 days. Oxidative stress was then measured by NBT staining, and the stained cells were photographed. There were equal numbers of cells on the plates for −/+ Dox as shown in Supplementary Fig S4.I The cells with Dox-inducible STAMP2 expression from (E) were either left untreated or treated with Dox for 48 h. Then, the cells were treated with or without 10 μM DPI before being subjected to NBT staining. *P < 0.0001.
Figure 9A LNCaP cells stably expressing an empty vector (LN-Vec) or a vector expressing STAMP2 (LN-ST2) were established by lentivirus delivery. Cell lysates were prepared and subjected to Western blot analysis with the indicated antisera.B Relative ferrireductase activities were measured in the cells described in (A). *P = 0.0003C NBT staining was performed in LNCaP cells stably expressing either an empty vector (LN-Vec) or a vector expressing wild-type STAMP2 (LN-ST2/WT) or a STAMP2 mutant (LN-ST2/dGSR) as indicated. The stained cells were then photographed and quantified. *P = 0.004.D LNCaP cells were transfected with either scrambled siRNA (siCtrl) or siRNA against STAMP2 (siST2) and were cultured in the presence of 10 nM R1881 or vehicle for 2 days. Intracellular ROS levels were then measured by CellROX reagent staining. *P = 0.002. ns, not significant.E LNCaP cells stably expressing an empty vector (Vec), a vector expressing wild-type STAMP2 (WT), or a STAMP2 mutant (dGSR) were cultured, and the NADPH/NADP+ ratio was determined as described in Materials and Methods. *P = 0.015.F LNCaP cells were transfected with either control siRNA (siCtrl) or STAMP2 siRNA (siST2). Cells were then cultured for 2 days and harvested, and the NADPH/NADP+ ratio was determined as above. *P = 0.026.G LNCaP cells stably expressing wild-type STAMP2 were treated with or without DPI (1 μM) for 4 h, harvested, and used in the NADPH/NADP+ assay. *P = 0.018.
Figure 10A LNCaP cells were implanted subcutaneously into nu/nu mice. Once tumors reached 5 mm in size, mice (n = 5 per group) were given nanoliposome-encapsulated control siRNA or STAMP2 siRNA as described in Materials and Methods. Tumor volumes were measured at the indicated time points. *P = 0.001.B Same experiment as in (A), but VCaP cells were used instead. *P = 0.001.
Figure 1(B) Migration efficiency (% of cells that migrated through filter pores in each round) of A375 cells during 5 μm constricted migration and 12 μm migration (left panels). Biological replicates shown. Phase contrast imaging of the final cell populations after the 10 rounds of migration, cells cultured on 2D plastic (right panels, Scale bar = 50 µm).(C) A375 nuclei stained with DAPI (blue), Lamin A/C (green) and H3K9me3 (red) in the indicated migration conditions. Images shown represent a maximum projection of z-stacks (Scale bar= 5 µm).(D) Cumulative distribution plot of Lamin A/C coefficient of variation in all indicated A375 conditions (Control (n = 59), Top-5 (n = 64), Bottom-5 (n = 62) nuclei). Kolmogorov-Smirnov test p-values indicated in plot.(E) Radial intensity distribution of H3K9me3 signal in the maximum projected nuclei of Control (n = 59), Top-5 (n = 63), Bottom-5 (n = 64) and Bottom-12 (n = 80) nuclei (** p = 0.0069, two-tailed t-test). Error bars = mean ± SD.(F) Maximum projection confocal images of Top-5 and Bottom-5 cells embedded in collagen and stained with DAPI (blue) and Phalloidin (red). (Inset) Zoom in of nucleus of Bottom-5 cell. Top-5 and Bottom-5 zoomed inset scale = 5 μm; Bottom-5 zoomed out image scale = 20 μm.(G) Fraction of Control, Top-5 and Bottom-5 cells displaying projections at indicated timepoints after cells were embedded in 3D collagen matrices. Each biological replicate is connected by a line.(H) Nuclei of Top-5 (left) and Bottom-5 cells (right) embedded in 3D collagen matrix and stained with DAPI (blue) and Lamin A/C (green). Scale = 5μm. For 3D reconstruction visualization, see Movies EV5 and EV6.(I) Percent of cells embedded in collagen that had elongated nuclei (Aspect Ratio > 2.5) for A375 Control (n = 54), Top-5 (n = 52) and Bottom-5 (n = 53).(J) Cumulative distribution plot of Lamin A/C coefficient of variation for Control (n = 70), Top-5 (n = 78) and Bottom-5 (n = 109) cells embedded in 3D collagen matrices. Kolmogorov-Smirnov test p-values indicated in plot.
Figure 4(E) Metaphase spread labeled with chromosome specific FISH probes for chr5 (green) and chr13 (red). Bottom graphs represent frequency of t(5;13) quantified by FISH (left) and copy number quantification for chr5 and chr13 (right). n = 1328 Control and 2370 metaphases analyzed for Bottom-5. (Scale = 10 μm)
Figure 1Representative images of GINs cultures showing GABA and TUJ1 expression. Scale bar = 100 μm.The proportion of GABA+ cells of TUJ1+ neurons from both CTRL and sMDD iPSCs derived GINs at day 35. (CTRL, n=120 fields were counted from 5 cell lines; sMDD, n=134 fields were counted from 6 cell lines).Representative images and schematic morphometric Sholl analysis from CTRL and sMDD GINs at day 35. Sholl intersection number of CTRL and sMDD GINs at day 35 (Each red box is from 5 CTRL cell lines, n=25 independently differentiations from 5 cell lines, each point represents mean value of neurons from five independent experiments, n=226 neurons from CTRL groups. Each blue box is from 6 sMDD cell lines, n=30 differentiations independently from 6 cell lines, each point represents mean value of neurons from five independent experiments, n=260 neurons from sMDD groups). Two-way ANOVA for different distance from soma, ****p＜0.0001 for 10, 30 and 50 μm.Representative images of GINs from CTRL and sMDD at day 65.Quantification of primary branch numbers of GINs shown in 5 CTRL cell lines and 6 sMDD cell lines at day 65, n≥11, Nested t-test, **p=0.0016 for CTRL versus sMDD. Quantification of longest neurite length of GINs shown in 5 CTRL cell lines and 6 sMDD cell lines at day 65, n≥11, Nested t-test, **p=0.0075 for CTRL versus sMDD.Representative images of GINs subtype calretinin (CR) expression. The proportion of CR+ cells of TUJ1+ neurons from both CTRL and sMDD iPSCs derived GINs at days 35, 40 and 50, respectively. (Red bar from 5 CTRL cell lines, blue bar from 6 sMDD cell lines). n=5 in each cell line. Two-way ANOVA for timepoints,Representative images of GINs subtype somatostatin (SST) expression co-staining with mature neuron marker MAP2 in CTRL and sMDD GINs at day 65. The proportion of SST+ neurons of MAP2+ cells from CTRL and sMDD iPSCs derived GINs at day 65. n=43 in CTRL groups and n=37 in sMDD groups.
Figure 2Representative electrophysiological traces of AP at a holding potential of -70 mV from GINs in sMDD (blue) and CTRL (red) groups. Average number of APs evoked during 500ms stepwise depolarization (CTRL, n=35 neurons from 3 lines; sMDD, n=55 neurons from 3 lines).D-F. Amplitude and half width of the first AP generated in response to a 10-pA injection (CTRL, n=35 neurons from 3 lines; sMDD, n=55 neurons from 3 lines). Nested t-test, **p＜0.01; ***p＜0.001. Mean ratio ± SEM.G. Traces of Na+/K+ currents recorded from GINs in sMDD and CTRL groups. Quantification showed average of peak values of Na+ currents (CTRL, n=46 neurons from 3 lines; sMDD, n=38 neurons from 3 lines). Nested t-test, **p＜0.01. H. Average fast potassium currents of GINs in sMDD and CTRL groups (CTRL, n=43 neurons from 3 lines; sMDD, n=36 neurons from 3 lines).
Figure 3Representative images of calcium imaging in CTRL and sMDD GINs at each timepoint. Scale bar = 20 μm.The representative trajectory of average intensity changes over time from CTRL (red line) and sMDD (blue line) neurons in response to 67 mM KCL. CTRL, n=6 neurons; sMDD, n=6 neurons. Traces are from a representative experiment (the whole quantification result is shown in D). Quantification of peak [Ca2+] (Fmax-F0)/F0 shown per cell line (n=155 neurons derived from 5 CTRL cell lines, n=198 neurons derived from 6 sMDD cell lines). Nested t-test, **p=0.0022 for CTRL versus sMDD.Immunostaining for the GABA interneuron marker GAD67, neural progenitor marker SOX2 and ventral prosencephalic progenitor marker NKX2.1 at day 30 in CTRL and sMDD ventral forebrain organoids.Representative images of calcium imaging in CTRL and sMDD ventral forebrain organoids at different states.Quantification of peak [Ca2+] (Fmax-F0)/F0 shown per cell line (n=156 neurons derived from 4 CTRL cell lines, n=88 neurons derived from 4 sMDD cell lines). Nested t-test, ***p=0.0005 for CTRL versus sMDD.
Figure 4Bar plot showing the number of genes associated with known mental illnesses, based on PsyGeNET. "Total" presents all of the genes related to a given disease. "100% association" presents the genes only positively correlated with the disease. "100% no association" presents the genes only negatively correlated with the disease. "Both" means genes that both positive and negative results were found. AUD, BD, CUD, MDD and SCZ represent alcohol use disorder, bipolar disorder, cocaine use disorder, major depressive disorder and schizophrenia, respectively.Heatmap illustrating the expression level of DEGs enriched in selected Reactome pathways, gene ontology (GO) terms, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, which is normalized by row.Calcium imaging was performed on GFP+ neurons in the knockdown group. The representative image shows the rest state of GFP+ cells and the state of cells after KCl stimulation. The pseudo-color showed Rhod-4 calcium fluorescent dye, and the selected cells are GFP+ neurons.The representative trajectory of average intensity changes over time in Vehicle virus and KD virus groups. CTRL, n=10 neurons; sMDD, n=10 neurons. Traces are from a representative experiment (the whole quantification result is shown in I). Quantification of peak [Ca2+] (Fmax-F0)/F0 shown per virus group. n=89 for Vehicle virus, n=118 for KD virus, respectively from 4 batches. T-test, ****p<0.0001.
Figure 5Calcium imaging was performed on GFP+ neurons in the overexpression group. The representative image shows the rest state of GFP+ cells and the state of cells after KCl stimulation. The pseudo-color showed Rhod-4 calcium fluorescent dye, and the selected cells are GFP+ neurons.The representative trajectory of average intensity changes over time in Vehicle virus and OE virus groups. CTRL, n=10 neurons; sMDD, n=10 neurons. Traces are from a representative experiment (the whole quantification result is shown in D). Quantification of peak [Ca2+] (Fmax-F0)/F0 shown per virus group. n=166 for Vehicle virus, n=81 for OE virus, respectively from 3 batches.Representative images of calcium imaging in CTRL (from RC01001-C) and sMDD (from SA004) GINs at resting and stimulus state with different treatments.Quantification of peak [Ca2+] (Fmax-F0)/F0 shown with different treatments including BDNF, Trzd, PNU, Ro at concentrations of 1 μM and 10 μM. T-test, **p=0.0042 for sMDD+BDNF versus sMDD; one-way ANOVA, ****p＜0.0001 for sMDD+10 μM Trzd versus sMDD. n≥7 neurons from each group.Dot plots showing the expression level and percentage of genes selected from functional gene sets across CTRL, sMDD and sMDD with Trzd GINs clusters.Top: Violin plots showing the expression level of CAMK2N1 and CAMK2N2 in three groups. Bottom: Scatter plot showing the correlations of foldchanges according to the expression of genes encoding CaMK family proteins between CTRL GINs and sMDD GINs and between sMDD with Trzd GINs and sMDD GINs. A linear regression line is added to the plot based on these two variables. sMDD+Trzd vs. sMDD, n=14 genes; CTRL vs. sMDD, n=14 genes.
Figure 6Representative images of single neuron from CTRL, CTRL+Trzd, sMDD and sMDD+Trzd GINs.Representative line chart of Sholl intersection number over distance from soma in CTRL, CTRL+Trzd, sMDD and sMDD+Trzd GINs at day 45. CTRL, n=81 neurons from 5 cell lines; CTRL+Trzd, n=81 neurons from 5 cell lines; sMDD, n=73 neurons from 6 cell lines; sMDD+Trzd, n=71 neurons from 6 cell lines. Quantification of maximum intersections from CTRL, CTRL+Trzd, sMDD and sMDD+Trzd GINs via Sholl analysis. CTRL, n=81 neurons from 5 cell lines; CTRL+Trzd, n=81 neurons from 5 cell lines; sMDD, n=73 neurons from 6 cell lines; sMDD+Trzd, n=71 neurons from 6 cell lines.Quantification of sum of intersections from CTRL, CTRL+Trzd, sMDD and sMDD+Trzd GINs via Sholl analysis. CTRL, n=81 neurons from 5 cell lines; CTRL+Trzd, n=81 neurons from 5 cell lines; sMDD, n=73 neurons from 6 cell lines; sMDD+Trzd, n=71 neurons from 6 cell lines. One-way ANONA, ****p＜0.0001 for CTRL versus sMDD; ***p=0.0002 for sMDD versus sMDD+Trzd. The representative trajectory of average intensity changes over time from CTRL, CTRL+Trzd, sMDD and sMDD+Trzd GINs in response to 67 mM KCL. CTRL, n=20 neurons; CTRL+Trzd, n=20 neurons; sMDD, n=20 neurons; sMDD+Trzd, n=21 neurons. Tracs are from a representative experiment (the whole quantification result is shown in Fig EV5E).Quantification of peak [Ca2+] (Fmax-F0)/F0 shown per group, CTRL, CTRL+Trzd, sMDD and sMDD+Trzd all from 3 cell lines. T-test, *p=0.0495 for CTRL versus sMDD, **p=0.0075 for sMDD versus sMDD+Trzd.Representative images of calcium imaging in sMDD and sMDD+Trzd ventral forebrain organoids at different states.Quantification of the effect of Trzd on peak [Ca2+] (Fmax-F0)/F0 in ventral forebrain organoids (CTRL from IMR90-4, n=40 cells; CTRL+Trzd from IMR90-4, n=58 cells; sMDD from SA007, n=49 cells; sMDD+Trzd from SA007, n=64 cells). Two-tailed test, ****p＜0.0001 for CTRL versus sMDD; ***p=0.0007 for sMDD versus sMDD+Trzd.Representative electrophysiological traces of AP at a holding potential of -70 mV from GINs in sMDD and sMDD+Trzd groups. Average number of APs evoked during 500ms stepwise depolarization (CTRL, n=35 neurons from 3 lines; CTRL+Trzd, n=30 neurons from 3 lines; sMDD, n=55 neurons from 3 lines; sMDD+Trzd, n=44 neurons from 3 lines).Traces of Na+/K+ currents were recorded from GINs in sMDD and sMDD+Trzd groups. Average peak values of Na+ currents (CTRL, n=46 neurons from 3 lines; CTRL+Trzd, n=32 neurons; sMDD, n=38 neurons from 3 lines; sMDD+Trzd, n=36 neurons from 3 lines).
Figure 2Quantification of mitotic defects as in (B) of H2B-mNeon-expressing HeLaEGFP-AID-CENATAC cells treated as indicated (three or five biological replicates, >85 cells in total per condition). For 2xZF the four zinc-finger cysteines were mutated to alanines; for Δ1-4 the corresponding motif was removed.Representative stills of HeLaEGFP-AID-CENATAC cells expressing H2B-mNeon and depleted of CENATAC. Microtubules were visualized with SiR-Tubulin. Arrowheads and arrows indicate non-congressed chromosomes and supernumerary spindle poles, respectively. Scale bar, 5 μm. Time in hours. See Figure EV2 for the control condition. See also Movies EV1 and EV2. IAA, 3-indoleacetic acid.
Figure 3Graph of fold-changes of proteins enriched (P-value < 0.05) in proteomics analysis of CENATAC vs. control co-immunoprecipitations of HeLaEGFP-CENATAC cells (three biological replicates). Splicing factors are depicted in orange. See also Appendix Figure S7.Glycerol gradient (10-30%) analysis of HeLa S3 nuclear extracts. snRNAs were detected by Northern blot analysis, proteins (CENATAC and PRPF4) by western blot. Locations of the U6atac mono-snRNP, U4atac/U6atac di-snRNP and U4atac/U6atac.U5 tri-snRNP are indicated.
Figure 4RT-PCRs of IPO5, SUDS3 and ZCCHC8 minor and adjacent major introns on RNA extracted from patient lymphoblasts or HeLaEGFP-AID-CENATAC cells depleted of GAPDH or CENATAC as indicated. u, unspliced; s, spliced.RT-PCRs of ZRSR2 and GAPDH (to visualize ZRSR2 knockdown efficiency, upper) and RT-PCRs of SUDS3 minor intron 7 (middle) and major intron 5 (lower) on RNA extracted from HeLaEGFP-AID-CENATAC or DLD-1 cells depleted of GAPDH or ZRSR2 as indicated.
Figure 5RT-PCR of major (U2-type) AT-AC introns in SYCP2 (intron 5) and TAF2 (intron 1), and minor (U12-type) AT-AC intron in IPO5 (intron 21) on RNA extracted from HeLaEGFP-AID-CENATAC cells depleted of GAPDH or CENATAC. Schematic representations of unspliced/spliced PCR products are depicted on the right.
Figure 6RT-PCR P120 reporter assay(Hall & Padgett, 1996) to measure the relative usage of A-type (AT-AC) and G-type (GT-AG) 5' splice sites in direct competition. Upper: schematic diagram showing the overall architecture of the reporter construct with its down- and upstream splice site (thick red and blue bars, respectively) and the products created by splicing (Dn and Up, respectively). Lower: RT-PCRs of the reporter with A- or G-type splice sites in the down- or upstream positions as indicated below the gel. SS, splice site. *, PCR product after use of a cryptic major splice site (not shown in the schematic).