Cellular senescence is a permanent proliferation arrest mechanism induced following the detection of genotoxic stress. Mounting evidence has causally linked the accumulation of senescent cells to a growing number of age-related pathologies in mammals. However, recent data have also highlighted senescent cells as important mediators of tissue remodeling during organismal development, tissue repair, and regeneration. As powerful model organisms for studying such processes, salamanders constitute a system in which to probe the characteristics, physiological functions, and evolutionary facets of cellular senescence. In this chapter, we outline methods for the generation, identification, and characterization of salamander senescent cells in vitro and in vivo.
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