Journal: Bioactive Materials
Article Title: Spermidine-functionalized Janus hydrogel microneedles inhibit ferroptosis and promote healing of oral ulcers
doi: 10.1016/j.bioactmat.2026.01.016
Figure Lengend Snippet: Evaluation of ferroptosis inhibition, antioxidant, and anti-inflammatory effects of MN-HTSO-C in vitro. (A) Lipid peroxidation analyzed by oxidized-BODIPY flow cytometry (left) and quantification (right) (n = 3). (B) Cell viability assessed by Live/Dead™ staining after treatment with hydrogen peroxide (H 2 O 2 ) in the presence or absence of MN-HTSO-C or Ferrostatin-1 (Fer-1) (n = 3). Scale bar: 100 μm. (C) Quantitative analysis of cell death/live ratios under different treatment conditions (n = 3). (D) Reactive oxygen species ( ROS) (green)/DAPI (blue) immunofluorescence in H 2 O 2 -treated cells with or without MN-HTSO-C (n = 5). Scale bar: 20 μm. (E) Quantification of relative ROS fluorescence intensity (n = 5). (F) Immunofluorescence of inducible nitric oxide synthas (iNOS) and arginase 1 (ARG1) in H 2 O 2 -treated cells with or without MN-HTSO-C (n = 6). Scale bar: 50 μm. Data represent the mean ± SD. ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001; ∗∗∗∗p < 0.0001. Statistical significance was determined by One-way ANOVA test.
Article Snippet: To investigate the involvement of ferroptosis, cells were co-treated with the ferroptosis inhibitor Ferrostatin-1 (Fer-1, HY-100579, MCE) or the ferroptosis inducer RSL-3 (HY-100218 A, MCE), serving as positive and negative controls, respectively, according to the experimental design.
Techniques: Inhibition, In Vitro, Flow Cytometry, Staining, Immunofluorescence, Fluorescence