Journal: Cell Death Discovery
Article Title: Sibiriline, a novel dual inhibitor of necroptosis and ferroptosis, prevents RIPK1 kinase activity and (phospho)lipid peroxidation as a potential therapeutic strategy
doi: 10.1038/s41420-025-02852-8
Figure Lengend Snippet: A SH-SY5Y cells were treated with either 10 µM Erastin, 5 µM RSL3, 10 µM FIN56 or 25 µM FINO 2 , and increasing concentrations of Sib up to 50 µM or until reaching maximal cellular viability or 1 µM of ferrostatin-1 (Fer-1/F1) as a control. Cell viability was determined after 24 h of treatment, using the MTS assay. The bar graph represents the mean of two replicates. B SH-SY5Y cells were co-treated for 24 h with 5 µM RSL3 and increasing concentrations of Sib or Fer-1. Cell death was estimated by the lactate dehydrogenase (LDH) release assay. Results are plotted in % of LDH release measured in cells treated with RSL3 alone (left axis, colored blue). Cell viability was evaluated by MTS reduction assay. Results obtained (colored red) were plotted as % of maximal viability with DMSO-treated cells (right axis). Data are shown as the mean +/- SEM of three replicates. C NIH3T3 cells were treated with either 1 µM RSL3, 5 ng/ml TNFα and 20 µM z-VAD.fmk (TZ) or a combination of both treatment (TZ + RSL3) and 10 µM of Sib or Nec-1f, 30 µM Nec-1s or 1 µM of Fer-1. Cell viability was evaluated by MTS reduction assay after 16 h of treatment. Data are shown as the mean ± SEM of three replicates of two independent experiments. D NIH3T3 cells were treated with 5 ng/ml TNFα, 20 µM z-VAD.fmk and 1 µM RSL3 and increasing concentrations of Sib or Nec-1f. Cell viability was determined after 16 h of treatment using an MTS assay. Data are shown as the mean ± SEM of two replicates. EC 50 values were calculated using graphpad prism software. Statistical analysis was performed using two-way ANOVA and Tukey’s multiple comparisons test using graphpad prism software. * p < 0.05, ** p < 0.01, *** p < 0.001 and **** p < 0.0001 vs controls.
Article Snippet: Human neuroblastoma SH-SY5Y cell line, human fibrosarcoma HT1080 cell line, mouse fibroblast NIH3T3 cell line and mouse hippocampal HT-22 cell line were originally obtained from American Type Culture Collection (ATCC, Manassas, VA, USA).
Techniques: Control, MTS Assay, Lactate Dehydrogenase Assay, Software
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