Research Article

Sublethal Oxidative Stress Induces the Premature Senescence of Human Mesenchymal Stem Cells Derived from Endometrium

Figure 3

The sublethal dose of H2O2 induces senescent phenotype in hMESCs. Cells were treated as indicated in the legend of Figure 2. (a) SA- -Gal staining. (b) Quantitative assay of SA- -Gal-positive cells. (c) H2O2-induced cell size increase. Typical presentation of forward scatter (FS), reflecting the average cell size (left). Cell size was determined daily: H2O2-treated cells were either cultured for 5 days under standard conditions (middle) or were reseeded in 2 days and additionally cultivated for 3 days (right). Data were obtained by light-scattering cytometry with using Win MDI program version 2.8. Data represent mean ± SEM of at least three independent experiments. Significant difference was based on the Student’s -test ( , ). Control (Ctr): untreated cells.
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