Figure 3. ETS expression in vitro and in vivo.
(A) Immunoblot and data analysis for ETS1 and ETS2 in F344 rat heart from each relative mortality group (4, 8, 30 and 80%). (B) ETS2 immunostaining of heart tissues from F/N rats at a) 2, b) 16, c) 24 and d) 32 months of age. ETS2 (Brown) and TUNEL (Violet) co-staining of hearts from 16 month old animals are shown in e–g, with magnifications shown in f and h. Dark brown staining in e illustrates high levels of ETS2 shown in selected regions of myocardium. Arrows indicate TUNEL positive CMs (f). g and h show TUNEL positive non-CMs lacking strong ETS2 staining. (C) Immunoblot and data analysis for ETS1 and ETS2 protein abundance in rFB, NNCM, and adult left ventricular cardiomyocytes (AdCM), p<0.05. (D) Immunoblot and data analysis for ETS2 protein abundance in vehicle-treated NNCM (Ctls) and NNCMs treated for 24 hours with 5μM of ISO, PE and AngII, * p<0.01.