EMBO/SourceData huggingface dataset:
Figure 3(A and B) (A) HeLa cells were incubated for 4 hr at 37°C or 18°C and processed for LC3II western blot. Some cells were incubated overnight with 20 mM NH4Cl in full medium (to block lysosomal degradation) at 37°C or 18°C (B).(C) HeLa cells were transfected with pEGFP-LC3 for 20 hr and incubated for 4 hr at 37°C or 18°C.(D and E) (D) HeLa cells were transfected with pEGFP-ATG16L1 for 20 hr and incubated for 4 hr at 37°C or 18°C. The size and the number (E) of vesicles were scored (a minimum of 20 cells were examined for each condition). Error bar, SEM. ∗∗∗p < 0.001 and ∗∗p < 0.01.(D and E) (D) HeLa cells were transfected with pEGFP-ATG16L1 for 20 hr and incubated for 4 hr at 37°C or 18°C. The size and the number (E) of vesicles were scored (a minimum of 20 cells were examined for each condition). Error bar, SEM. ∗∗∗p < 0.001 and ∗∗p < 0.01.(F and G) (F) HeLa cells were transfected with pEGFP-ATG16L1 for 20 hr, incubated for 4 hr at 37°C or 18°C, and labeled with EEA1 or RAB11 to visualize early endosomes or recycling endosomes. Histogram in (G) shows the amount of colocalization of ATG16L1 in EEA1 or in RAB11 compartment (Manders' coefficient). Error bar, SEM. NS, not significant; ∗∗p < 0.01.(H) HeLa cells were transfected with pmStrawberry-ATG16L1 for 20 hr, fixed, and labeled for mATG9. The histograms show quantification of colocalization and the size of the vesicles labeled with ATG16L1 and mATG9 at 37°C or 18°C. Error bar, SEM. ∗∗∗p < 0.001 and ∗∗p < 0.01.(I) HeLa cells were transfected with pEGFP-RAB11 or pEGFP-Myosin Vb tail (MVb) and incubated during the last 16 hr with Bafilomycin A1 (Baf) or DMSO and processed for LC3-II western blot. Control cells were transfected with pEGFP empty vector.(J) HeLa cells were transfected with ATG16L1-mStrawberry and RAB11-EGFP or MVb tail-EGFP. The size of ATG16L1 vesicles was scored in RAB11 and MVb tail overexpression conditions. The inserts show just the ATG16L1 vesicles as quantified in histogram. Error bar, SEM. ∗∗∗p<0.001.(K) HeLa cells were transfected as in (C) and loaded with transferrin Alexa-647 for 30 min. Histogram and the inserts show the correlation between ATG16L1 and the loaded transferrin (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.(L) HeLa cells were transfected as in (C) and labeled for mATG9. Histogram and the inserts show the correlation between ATG16L1 and mATG9 in RAB11 and MVb tail overexpression conditions (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.(M) HeLa cells were transfected with mStrawberry-ATG16L1 for 20 hr, starved in HBSS for 4 hr, or maintained in full medium, loaded with transferrin Alexa-488 (Tf). Pictures and histogram show the correlation between ATG16L1 and transferrin in basal and starving condition (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.(N) HeLa cells were transfected with mStrawberry-ATG16L1 for 20 hr, starved in HBSS for 4 hr, or maintained in full medium and then fixed and labeled with anti-mATG9 antibody. Pictures and histogram show the correlation between ATG16L1 and mATG9 in basal and starved cells (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.
Figure 4(A) HeLa cells were transfected with mStrawberry-ATG16 for 20 hr and treated for 10 min with N-ethylmaleimide (NEM; 100 μM) in full medium, fixed, and stained for mATG9. Histogram shows correlation between mATG9 and ATG16L1 (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.(C and D) (C) Representative fields of in vitro fusion assay of ATG16L1 and mATG9 vesicles. The quantification in (D) was performed on ten fields (similar to that shown in the figure) per experiment. The quantification is expressed as Pearson's coefficient. Error bar, SEM. ∗∗p < 0.001.
Figure 5(A) HeLa cells were transfected with siRNAs for different R-SNAREs, and we assessed the levels of the autophagy substrate p62 versus actin.(B) HeLa cells transfected with control or VAMP3 siRNA (oligo A) for 4 days were treated during the last 16 hr with Bafilomycin A1 (Baf A1) or DMSO (basal) and processed for LC3-II western blots.(C) Endogenous LC3 immunocytochemistry in HeLa cells transfected with control or VAMP3 siRNA for 4 days. The histogram shows the number of vesicles (LC3 positive) in a minimum of 30 cells. Error bar, SEM. ∗∗∗p < 0.001.(D) HeLa cells were transfected with VAMP3-HA for 20 hr and stained for EEA1 or RAB11. Histogram shows colocalization between VAMP3-HA and EEA1 or VAMP3-HA and RAB11 (Manders' coefficient). Error bar, SEM.(E) HeLa cells were transfected for 20 hr with VAMP3-HA, incubated for 1 hr at 37°C or 18°C, fixed, and labeled for HA and mATG9. Histogram shows the percentage of colocalization between VAMP3 with mATG9 (Manders' coefficient). Error bar, SEM. NS, not significant.
Figure 6(A-C) HeLa cells transfected with control, VAMP3 siRNA for 4 days were transfected during the last 20 hr with ATG9L1-pEGFP and labeled with anti-EEA1 (for early endosomes) or anti-RAB11 (for recycling endosomes). The histogram in (C) shows the quantification of the colocalization of mATG9 in EEA1 or RAB11 (Manders' coefficient). Error bars, SEM. ∗∗∗p < 0.001.(D-F) HeLa cells were treated as in (A)-(C) and transfected during the last 20 hr with pEGFP-ATG16L1 and labeled with anti-EEA1 (early endosomes) or anti-RAB11 (recycling endosomes). Histogram in (D) shows quantification of the colocalization of ATG16L1 in EEA1 or RAB11 (Manders' coefficient). Error bars, SEM. ∗∗∗p < 0.001; NS, not significant.
Figure 7(A) HeLa cells transfected with control, VAMP3 siRNA for 4 days were transfected during the last 20 hr with mStrawberry-ATG16L1 and labeled for mATG9. The correlation between mATG9 and ATG16L1 was quantified (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001.(B) HeLa cells were transfected with control or VAMP3 siRNA and then with mStrawberry-ATG16, and 5 min movies were recorded. Homotypic fusion events between mStrawberry-ATG16 vesicles were assessed in control and VAMP3 knockdown cells. Error bar, SEM. NS, not significant.(C) In vitro fusion assay of ATG16L1 and mATG9 vesicles. HeLa cells were transfected with control or VAMP3 siRNA for 4 days separately and, on the fourth day, either transfected with mStrawberry-ATG16L1 or ATG9L1-pEGFP. PNS of cells expressing the two constructs were mixed for 1 hr at 37C° and observed by confocal microscopy. Histogram shows the correlation of vesicles carrying ATG16L1 that fuse with vesicles carrying mATG9 (Pearson's coefficient). Error bar, SEM. ∗∗∗p < 0.001. The total number of structures per field (ATG16L1 and ATG9L1) is not significantly different in the control and KD samples (control, 37 ± 3; VAMP3 KD, 45 ± 3; ± SEM; p = 0.106).
Figure 1(A) THP-1 cells were subjected to knockdowns as indicated and treated with 100 ng/mL LPS overnight, followed by 0.25 mM LLOMe for 3 h, and the levels of IL-1β were determined in supernatants.(B) THP-1 cells were subjected to GABARAP knockdown and processed as in A.(C) IL-1β levels in supernatants of THP-1 cells subjected to TRIM knockdowns and treated with LPS and then with LLOMe.(D) Confocal microscopy of THP-1 cells treated sequentially with LPS and LLOMe, and stained for LC3B and TRIM16. Line tracings correspond to arrows. Arrowheads indicate colocalization. Scale bars, 5 μm.(E) IL-1β levels in supernatants of THP-1 cells subjected to TRIM knockdowns and treated with LPS and then with LLOMe.(F) Levels of IL-1β were determine in supernatants from THP-1 cells subjected to knockdown as indicated, treated with 100 ng/mL LPS for overnight and then with 0.25mM of Silica, Alum, or monosodium urate (MSU).(G) IL-1β in supernatants of primary human macrophages (MDM) subjected to knockdowns and sequentially treated with LPS and LLOMe. Data, means ± SEM; n≥5 (except for B where a representative data set from 3 repeats). *P < 0.05 (t test or ANOVA).
Figure 2(A and B) Levels of IL-1β in supernatants from THP-1 cells that were subjected to knockdown as indicated and were treated with LPS, and then (A) treated with LLOMe or (B) starved in EBSS.(C) IL-1β in supernatants of primary human macrophages (MDM) subjected to knockdowns and sequentially treated with LPS and LLOMe.(D) Co-immunoprecipitation (co-IP) of flag-galectin-8 (Gal-8) and GFP-TRIM16 (T16) in HEK293T cells.(E) Co-IP analysis of endogenous galectin-8 and TRIM16 in protein complexes from LLOMe-treated THP-1 cells.(F) Confocal microscopy of THP-1 cells treated with LPS and LLOMe, and stained for TRIM16 and galectin-8. Line tracings correspond to arrowed dashed lines. Pearson correlation coefficient was calculated using SlideBook as described previously. Scale bars, 5 μm.(G) In vitro translated and radiolabeled [35S] myc-HA-TRIM16 was incubated with GST-galectin-8 in the presence (+) or absence (-) of flag-ULK1 and cold ATP, GST pulldowns were performed, and [35S] radiolabeled Myc-HA-TRIM16 in pulled-down material detected by PAGE and autoradiography. Amounts of GST fusion proteins are shown in coommassie brilliant blue (CBB)-stained gels. Data, means  SEM; n≥5, except for immunoblot quantifications where n≥3. *P < 0.05, †P ≥ 0.05 (t test or ANOVA).
Figure 3(A and B) Immunoblot analyses of indicated membrane fractions prepared by differential centrifugation. HeLa cells reconstituted with flag-pro-IL-1β and myc-pro-Caspase-1 were treated with 1mM LLOMe for 1h, and lysates were subjected to differential centrifugations at 3,000xg (3k), 25,000xg (25k) and 100,000xg (100k) as depicted in the cartoon. Arrows, two ways the membranes were analyzed - pellets from velocity sedimentation were analyzed in panels B-D, or by further sucrose and OptiPrep density separation of 25k pellets in panels F and G.(C) IL-1β levels in 25k membrane fractions (pellets) from HeLa cells and their CRISPR knockout derivatives (TRIM16KO) that were reconstituted for IL-1β secretion and treated with 1mM LLOMe for 1 h.(D) Quantification of analyses in (B). RI, relative intensity.(E) Whole cell lysates (immunoblots) analyzed in F and G.(F,G) Sucrose density gradient analysis of 25k membranes. Note that mature IL-1β (mIL-1β) is recruited to and co-fractionates with TRIM16+, Sec22b+, and LC3-II+ membranes in TRIM16wt HeLa cells reconstituted with pro-IL-1β and pro-caspase 1, but not in TRIM16KO mutant cells.(H) Confocal images of LC3 in HeLa cells expressing GFP-Sec22b treated with LLOMe or untreated (control). Arrowheads, colocalization. Scale bars, 5 μm. (I) GFP-Sec22b and LC3 overlapping area obtained by high content microscopy.(J) Co-IP analysis between flag-TRIM16 with GFP-Sec22b or GFP-syntaxin-17 co-expressed in HEK293T cells.(K) Co-IP analysis of endogenous proteins, TRIM16 and Sec22b, in lysates from THP-1 cells treated with LLOMe.(L) Co-IP analysis of interactions between deletion variants of flag-TRIM16 with GFP-Sec22b in HEK293T cells.(M and N) IL-1β secretion complementation experiments of TRIM16KO cells with TRIM16 Sec22b-interacting and its Sec22b-nonbinding mutant shown.(O) Two color super-resolution image showing co-clustering of flag-TRIM16 (red) and GFP-Sec22b (green); Scale bar, 200 nm. (P) Cross-correlation analysis of flag-TRIM16 and GFP-Sec22b super-resolution data showing a characteristic separation of ~ 70 nm.
Figure 4(A and B) IL-1β levels in supernatants of THP-1 cells subjected to knockdowns, treated with LPS, and then (A) with LLOMe or (B) starved in EBSS.(C) IL-1β levels in supernatants of primary human macrophages (MDM) subjected to knockdowns and sequentially treated with LPS and LLOMe.(D) Immunoblot analyses of p62 levels in THP-1 cells subjected to knockdowns as indicated and starved for 3 h.(E) mRFP-GFP overlapping areas of tandem HeLa cells reconstituted with flag-pro-IL-1β and myc-Caspase 1 and starved for 3 h. Mask overlay, iDev software-defined objects (primary objects, cell outlines; internal secondary objects, GFP (top), mRFP (middle), or their overlapping area (bottom)). Bars, 10 μm.(F) IL-1β levels in supernatants of starved tandem HeLa cells reconstituted with flag-pro-IL-1β and myc-Caspase 1 as in E.
Figure 5(A-C) IL-1β levels in supernatants of THP-1 cells subjected to knockdowns, treated with LPS, and then with LLOMe (A and C) or starved in EBSS (B).(A-C) IL-1β levels in supernatants of THP-1 cells subjected to knockdowns, treated with LPS, and then with LLOMe (A and C).
Figure 6(C) Ferritin levels in supernatants of THP-1 cells subjected to knockdowns as indicated and sequentially treated with LPS and LLOMe.(D) Ferritin levels in supernatants of THP-1 cells subjected to knockdowns as indicated and infected with M. tuberculosis as indicated.(E) Levels of ferritin were determine in supernatants from THP-1 cells that were subjected to knockdown as indicated and were sequentially treated with LPS and LLOMe.(F) Confocal microscopy of HeLa cells expressing GFP-Sec22b were treated with LLOMe, and stained for FTH1. Line tracings correspond to arrows. Scale bars, 5 μm;
Figure 1(F) Malate dehydrogenase (MDH; 0.2 µM) was incubated at 40 °C in the absence (black) or presence of 0.5 µM WT HSP27 (red) or 0.5 µM P182L HSP27 (blue). (G) Insulin (40 µM) was incubated at 40 °C in the absence (black) or presence of 20 µM WT HSP27 (red) or 20 µM P182L HSP27 (blue). The y-axes depict the absorbance at 340 nm due to the formation of large aggregates. The solid lines represent the average of three replicates with the filled area reflecting ± one standard deviation.
Figure 2(A) SEC-MALS data from WT HSP27 and the P182L variant, with cHSP27 included for comparison. All samples were injected at 40 µM concentration (monomer). The respective average molecular masses are 14 MDa, 470 kDa, and 18 kDa for P182L, WT HSP27, and cHSP27. The normalized UV signals are plotted on the left y-axis as solid lines and the molecular masses are plotted on the right y-axis as circles.(B) Fractionation of HeLa cells overexpressing either HSP27 or the P182L mutant by a 10% to 80% sucrose gradient. Western blot against anti-V5 is shown.(C) Expression of V5-epitope-tagged HSP27 (WT or P182L mutant) in HSP27 knock-out HeLa cells and immunostaining of HSP27. The scale bars correspond to the non-expanded dimensions, derived by dividing by the sample expansion factor of 4.3. (D) The P182L mutation decreases the density of HSP27 spots upon detection of local fluorescence intensity maxima and quantification of the number of detected spots in expanded samples (n = 30). The error bar is the standard deviation for the different cytoplasmic regions. (E) Distribution of the intensity of individual spots (n = 3342) after Gaussian fitting of fluorescence intensity in the neighborhood of detected spots.(F) Immunostaining of HSP27 (white) in motor neurons differentiated from CMT patient-derived iPSCs that harbor the heterozygous P182L mutation reveals large, cytoplasmic aggregates (center and right panels). The control motor neurons that contain WT HSP27 do not show evidence of any aggregates. The nucleus is stained with Hoechst (blue). Scale bar, 10 µm.
Figure 4(A, B) i. 15N CPMG RD data for residues in the β4 strand (T113) and the β8 strand (S154) in the absence of added peptide. CPMG data are shown for the same residues in the presence of ii. ca. 2% cHSP27-WT peptide complex or iii. ca. 2% of the cHSP27-P182L peptide complex. Uncertainties in R2,eff values are derived from the standard deviations of fitted peak intensities obtained from duplicated νCPMG values. (C) i. The association (kon) and dissociation (koff) rates for WT (red) and P182L (blue) IxI/V peptide binding to the ACD, calculated directly from the CPMG RD data. Residues that are impacted by the presence of a small amount of peptide are indicated by red (ii., WT) and blue (iii., P182L) spheres. In both cases, residues in similar ACD regions show enhanced Rex, indicative of chemical exchange at similar sites.
Figure 5(B) Volcano plot representing the interactors that are enriched for the P182L mutant versus GFP as a negative control, obtained with affinity-enrichment mass spectrometry. Proteins that co-immunoprecipitated significantly more (p<0.05) with the P182L variant are shown in the upper right quadrant. Interactors with one or more [I/V]-x-[I/V] motifs are displayed in red while other significantly enriched interactors are displayed in black.(C-D) Co-immunoprecipitation from HeLa cells stably overexpressing V5-epitope-tagged HSP27 (WT or P182L mutant) using anti-V5 beads. Co-immunoprecipitation was quantified and presented as a percentage relative to the P182L variant (n=3). The mean ± one standard deviation (n=3) is shown. Right: the location of Pro182 (red) in the crystal structure of peptide-bound cHSP27 (PDB: 4mjh) and in silico creation of the P182L mutation (blue). The peptide is shown in white sticks. P182L specifically weakens binding of the HSP27 IxI/V motif.(E) Co-immunoprecipitation from HeLa cells stably overexpressing V5-epitope-tagged HSP27 (WT or P182L mutant) and transiently transfected with BAG3-eGFP (WT or IPV-mutant) using anti-GFP beads. Western blots for anti-GFP (BAG3), V5 (HSPB1), and α-tubulin. NS indicates a non-specific band. Note that detection of BAG3 (anti-GFP) and HSP27 (anti-V5) occurs with different antibodies. The locations of the IPV-to-GPG mutations in BAG3 are depicted below.(F) Co-immunoprecipitation from HeLa cells transiently transfected with V5-epitope-tagged HSP27 (P182L or S155Q/P182L mutant) using anti-V5 beads (n=2). Right: the location of Ser155 (red) in the crystal structure of peptide-bound cHSP27 (PDB: 4mjh) and in silico creation of the S155Q mutation (purple) showing a clash with the bound peptide. The peptide is shown in white sticks.S155Q disrupts binding of all IxI/V motifs.
Figure 2B) Western blot assays for the expression level of TFAM in ten HCC cell lines, one normal liver cell line (LO2) and two non-tumor liver tissues. The protein level was quantified as ratios between TFAM and GAPDH (n = 3 independent experiments). Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. **P < 0.01.(C) Western blot and quantitative analysis for the expression of TFAM in HCC cells with TFAM stable knockdown and control cells (n = 3 independent experiments). shCtrl, control shRNA; shTFAM, shRNA against TFAM; EV, empty vector; TFAM, expression vector encoding TFAM. Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. **P < 0.01.(D, E) Wound-healing migration assay (D) and Transwell migration and invasion assays (E) for HCC cells with treatment as indicated (n = 3 independent experiments). Scale bars, 100μm. Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. **P < 0.01.(G) Representative H&E images of lung metastasis in mice used in (F). Scale bars, 100μm. (H, Number of metastatic nodules per lung (H) in mice used in (F). Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. **P < 0.01.
Figure 3(C) Immunofluorescence analysis of TFAM and Phalloidin staining in human HCC cells from paired clinical samples (n=100). The 3D reconstruction of z-stacks from nuclear region is showed in the right side. Red: LifeAct, Blue: DAPI, Green: TFAM. Scale bars, 20μm for microscopy images, 40μm for 3D reconstruction.(D) Statistical analysis for fluorescent intensity of nuclear F-actin in (A), (B) and (C). Fluorescence intensity are quantified from at least 30 cells for each group in (A) and (B). One-way ANOVA. *P < 0.05; **P < 0.01.
Figure 4(E) Representative H&E images of lung metastasis in mice used in (D). Scale bars, 100μm. (F and G) Number of metastatic nodules per lung in mice used in (F) and the incidence of lung metastasis (G) in mice used in (D). Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. **P < 0.01.
Figure 5F) Western blot assays for protein expression levels of metastasis related gene in HCC cells (n = 3 independent experiments) and tumor tissues from mice (n =4 per group) with treatments as indicated. Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. *P < 0.05; **P < 0.01.(H Western blot assays levels of FN1, ITGB3 in HCC cells with treatment as indicated (n = 3 independent experiments). Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test. *P < 0.05; **P < 0.01.
Figure 6(A) Western blot analyses for the protein level of key regulators of actin polymerization in the cytoplasm and nucleus of HCC cells with treatment as indicated. Tublin and Lamin B1 were used as loading controls for the cytoplasm and nucleus, respectively (n = 3 independent experiments).(B) Western blot analyses for the protein level in tissues of mouse liver tumor induced by Akt/β-catenin (n = 3 independent experiments).Representative IHC images of mDia2 nuclear translocation in human (E) HCC tissues. NT, non-tumor liver tissues, n=100; MT, metastatic tumor tissues, n=58; NMT, non-metastatic tumor tissues n=42. Scale bars, 25μm. (F) Positive rates of mDia2 in nucleus and cytoplasm was calculated based on the IHC assay in (E). Graphs show mean ± s.e.m. One-way ANOVA. **P < 0.01.(H and I) Spearman correlation analysis between the positive rates of nuclear mDia2 and the TFAM expression level (or positive rates of nuclear F-actin) based on the IHC assay in (E).
Figure 7(D) Western blot analysis of anti-mDia2 IPs and whole-cell lysates (WCL) derived from HCC cells and mouse tumor tissues (n = 3 independent experiments). NT, non-tumor liver tissues; MT, metastatic tumor tissues; NMT, non-metastatic tumor tissues.(E) The level of malonylated mDia2. Equal amount of immunoprecipitated mDia2 either from TFAM knockdown or control cells was loaded in Western blot assay.(F) Western blot analysis for the distribution of mDia2 in SNU-368 cells incubated with malonyl-CoA (5 μM) or ND-630 (10 μM) (n = 3 independent experiments).(H) Representative H&E images of lung metastasis in mice used in (G). Scale bars, 100μm. (I) Number of metastatic nodules per lung in mice used in (G). Data information: Graphs show mean ± s.e.m., two-tailed unpaired t-test for , I). *P < 0.05; **P < 0.01.
Figure 8(A) IHC scores of TFAM in 429 paired tissues from HCC patients. The relative expression ratio of tumor to non-tumor was log2-transformed. T, tumor tissues; NT, non-tumor liver tissues.(B) mRNA level of TFAM in 50 HCC patients' paired tissues from TCGA database. The relative expression ratio of tumor to non-tumor was log2-transformed.(C) Representative images of IHC staining of TFAM (top panel) and scores (bottom panel) in HCC tumor tissues. One-way ANOVA. *P < 0.05; **P < 0.01. MT, metastatic tumor tissues; NMT, non-metastatic tumor tissues. Scale bars, 25μm. Boxes: first quartile to third quartile; Whiskers: minimum value to maximum value; Central band: median.(D Kaplan-Meier curves for overall survival of HCC patients stratified by TFAM expression. (F Kaplan-Meier curves for overall survival of HCC patients stratified by nuclear F-actin positive rates.E) the recurrence of HCC patients stratified by TFAM expression. G) the recurrence of HCC patients stratified by nuclear F-actin positive rates.(H) Representative images of IHC staining of TFAM, FN1 and ITGB3 from two HCC patients. Scale bars, 25μm. (I) Spearman correlation analysis between the levels of TFAM and FN1, IL-6, TGFB1 or ITGB3.
Figure 1b, Representative confocal images of NeuN (green) and Npas4 (red) immunostaining performed 1h after the last injection of cocaine or saline (scale bar: 50 µm).c, Quantifications of Npas4-positive cells (fold change normalized to the 30min saline control group) in the NAc and dStr. Mean + SEM; n = 4 mice per group. 10 images (5 per hemisphere) per mouse for the NAc and 10 images (5 per hemisphere) for the dStr. p** < 0.01, unpaired Student's t-test.