Abstract
The classic conception of tissue regeneration assumed the existence of tissue-proper regeneration stem cells that are set aside during normal tissue development and reserved as stem cells for regeneration. However, modern studies using cell tracing and other approaches have ruled out the presence of regeneration-proper stem cells in most cases in vertebrate tissue regeneration. The only experimentally validated regeneration-dedicated reserve cells are the satellite cells in skeletal muscle (e.g., Michele 2022) (see Sect. 5.2.3 ). Here, we will first discuss examples of large-scale tissue regeneration, liver regeneration in mammals, and lens and limb regeneration in newts. Then, attempts to widen the tissue regeneration capacity in mammals with exogenous transcription factor genes will be reviewed.
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