“…SHED viability and intracellular reactive oxygen species (ROS) production were analyzed after exposure to the different SDF eluates by annexin-V/7-aminoactinomycin D (7-AAD) and the general oxidative stress indicator CM-H2DCFDA staining, respectively, as previously described [23,29]. Briefly, SHEDs were cultured in complete culture medium alone (control), or in complete medium containing the different SDF eluates at 0.1%, 0.01%, and 0.005% concentrations for 72 h at 37 • C. Afterwards, the cells were washed and stained with FITC-labeled annexin-V and 7-AAD (Immunostep, Salamanca, Spain) for 15 min at r/t following the manufacturer s recommendations, or with 5 µM CM-H2DCFDA (Molecular Probes, Eugene, OR, USA) for 30 min at 37 • C. Finally, SHEDs were acquired in a BD FACS CantoTM flow cytometer (BD Biosciences, San Jose, CA, USA), and percentages of live and apoptotic/necrotic cells or CM-H2DCFDA positive cells were analyzed with FlowJo software (FlowJo LLC, Ashland, OR, USA).…”