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. 2019 Oct 3;13(5):832–846. doi: 10.1016/j.stemcr.2019.09.002

Figure 3.

Figure 3

Iron-Induced Senescence in NF Fibroblasts

(A and B) (A) Cells morphology (upper panel) and SA-β-Gal activity (lower panel) in bright field. Scale bars, 20 μm. (B) SA-β-Gal activity of NF1 cells treated with iron (Fe) and NAC. Scale bars, 20 μm. Positive stained cells in (A) and (B) were counted and plotted as a percentage of the total cells. The results are presented as the mean ± SD of five fields in three independent experiments.

(C) Ultrastructural analysis of fibroblasts examined by EM evidencing vacuoles (white arrows) and mitochondria (black arrows).

(D) Immunoblotting of LC3I and II expression in soluble fibroblast homogenates. Results are presented as the mean ± SD of three independent experiments.

(E) Levels of IL-1β and IL-6 determined by ELISAs on cell media. The results are presented as the mean ± SD of three independent experiments in octuplicate. The data were analyzed by unpaired, two-tailed t test, except for (B) in which one-way ANOVA were used, p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.