Journal: Acta Neuropathologica

Article Title: Tau oligomerization induces nuclear lamina invagination and chromatin remodeling in Alzheimer’s disease

doi: 10.1007/s00401-026-03018-1

Figure Lengend Snippet: Tau oligomerization in iPSC-derived neurons induces tau accumulation and binding at the nuclear membrane, leading to nuclear invagination. a Schematic illustrating OptoTau and mCherry vector design and mechanism of light-inducible protein aggregation. b Representative time-lapse images of mCherry and OptoTau expressing neurons stained with Nucspot Live 488 at 0, 10, 20, and 30 min of blue light exposure. The scale bar = 10 µm. c Closeup representative images of neuronal nuclei at 30-min timepoint overlaid with particle tracking lines following mCherry or OptoTau fluorescent granules over the time course. Green outline denotes the nucleus at 30 min. d Nucleus circularity at 0, 15, and 30 min of blue light exposure. Data shown as Mean ± SEM. N = 9-10. The two-way ANOVA with Tukey’s multiple comparisons test was used for experiments, ** p < 0.01, *** p < 0.001

Article Snippet: One hour before live-cell imaging, neurons were stained with NucSpot Live 488 (Biotium, #40,081), a low-toxicity nuclear DNA dye suitable for live imaging.

Techniques: Derivative Assay, Binding Assay, Membrane, Plasmid Preparation, Expressing, Staining

Journal: Evidence-based Complementary and Alternative Medicine : eCAM

Article Title: Paeoniflorin Attenuates Dexamethasone-Induced Apoptosis of Osteoblast Cells and Promotes Bone Formation via Regulating AKT/mTOR/Autophagy Signaling Pathway

doi: 10.1155/2021/6623464

Figure Lengend Snippet: Effect of paeoniflorin on DEX-induced apoptosis in MC3T3-E1 cells. (a, b) The extent of apoptosis of MC3T3-E1 cells was detected by flow cytometry after Annexin V-FITC/PI double staining. The apoptotic rate was measured by flow cytometric analysis. Data are presented as the mean ± SD. ∗∗ P < 0.01 vs. control; # P < 0.05 vs. DEX. (c) MC3T3-E1 cells were stained by Hoechst to show the extent of apoptosis after interventions of DEX and paeoniflorin. (d) The expressions of osteogenic protein-Runx2 (runt-related transcription factor2) and apoptotic proteins such as Bcl-2 (B cell leukemia 2) and Bax (BCL2-associated X protein) were measured by western blot. ∗ P < 0.05, ∗∗ P < 0.01 vs. control; # P < 0.05 vs. DEX; ## P < 0.01 vs. DEX. (e) Protein levels of caspase-3 and cleaved caspase-3 were determined by western blot analysis, shown in quantitative analysis. Data are presented as the mean ± SD. ∗∗ P < 0.01 vs. control; # P < 0.05 vs. DEX.

Article Snippet: For Hoechst staining, 10 μ L Hoechst live cell staining solution (Beyotime Institute of Biotechnology) was added to the culture medium and mixed gently.

Techniques: Flow Cytometry, Double Staining, Control, Staining, Western Blot