(6) Moreover, subcutaneous adipose of prematurely -
aged transgenic
mice exhibited high levels of staining for the senescence marker senescence - associated - β - galactosidase (SAβ - gal) and expressed high levels of several established markers of senescence, including p21, p19, interleukin - 6, (insulin - like growth factor binding protein - 2 (Igfbp2), and Pai - 1; primary BubR1H / H; INK - ATTAC
mouse embryonic fibroblasts forced
artificially into senescence by oncogenic Ras or serial passage exhibited a subpopulation that was both GFP + and stained positively SAβ - gal.