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. 1998 Oct 1;12(19):2997–3007. doi: 10.1101/gad.12.19.2997

Figure 2.

Figure 2

Activity of senescence-associated, acidic β-galactosidase in IMR-90 cells. Actively proliferating IMR-90 cells expressing GFPΔRaf-1[YY]:ER were treated with either ethanol (ETOH) or with a range of 4-HT concentrations from 1–100 nm as indicated for 6 days, then stained to detect the activity of the senescence-associated, acidic β-galactosidase.