Patrick M. Perrigue, J. Najbauer, Agnieszka A. Jozwiak, J. Barciszewski, K. Aboody, M. Barish
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Planarians as a model of aging to study the interaction between stem cells and senescent cells in vivo
The depletion of stem cell pools and the accumulation of senescent cells in animal tissues are linked to aging. Planarians are invertebrate flatworms and are unusual in that their stem cells, called neoblasts, are constantly replacing old and dying cells. By eliminating neoblasts in worms via irradiation, the biological principles of aging are exposed in the absence of wound healing and regeneration, making planaria a powerful tool for aging research.
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