Senescence-associated β-galactosidase (SA-β-gal) activity was detected using the cellular senescence assay kit (Chemicon, Temecula, CA), according to the manufacturer’s instructions and as previously described [25 (link)]. In brief, the cells were transfected with anti-miRNA, anti-miR-135b or anti-miR-135a for 48 h and then seeded in seeded in 6-well plates, and incubated for 16 h at 37 °C. Representative microscopic fields were photographed.
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